Automatic water outlet control device and automatic water outlet device

Automatic water outlet control equipment and automatic water outlet equipment technical field

[0001] The present invention relates to an automatic water outlet control device applied in the kitchen and bathroom field and an automatic water outlet device installed with the automatic water outlet control device, such as an automatic sensor faucet.

Background technique

[0002] Auto-sensing technology is widely used in water outlet devices in the kitchen and bathroom fields, such as faucets and urinals. The following takes the automatic sensor faucet as an example. In the prior art, an automatic sensor faucet mainly includes: a faucet body, a proximity sensor that detects whether a target (such as a human hand) enters or leaves the sensing area, and a solenoid valve and control assembly connected to the faucet body. The proximity sensor includes a traditional infrared sensor, an infrared distance detection sensor (PSD), a microwave detection sensor, an ultrasonic detection sensor, and the like. Generally speaking, the sensor is installed on the faucet or the faucet body. The solenoid valve and control components are installed under the basin of the faucet.

[0003] However, the automatic induction faucet in the prior art, due to more components, solenoid valves and control components and other components need to be installed under the basin, therefore, the installation and subsequent maintenance has brought great It is inconvenient and not conducive to product miniaturization.

Summary of the invention

[0004] The object of the present invention is to provide a new type of automatic water outlet control device and an automatic water outlet device installed with the automatic water outlet control device.

[0005] The object of the present invention is achieved by one of the following technical solutions: an automatic water outlet control device installed at the water outlet position of the automatic water outlet device in the kitchen and bathroom field, including a housing, a sensor assembly housed in the housing, a water outlet assembly, and Solenoid valve assembly. The housing includes a first housing cavity for accommodating the sensor assembly, a second housing cavity for accommodating the solenoid valve assembly, a third housing cavity for accommodating the water outlet assembly, and a water inlet cavity. The sensor assembly includes a circuit board and an inductor arranged on the circuit board. There is a processor on the circuit board. The solenoid valve assembly includes a solenoid valve electrically connected with the circuit board and a diaphragm matched with the solenoid valve. The movement of the diaphragm makes the water inlet cavity communicate with the third receiving cavity or is blocked to realize the water outlet or stop of the water outlet component.

[0006] The solenoid valve includes a valve cover and an electromagnet arranged in the valve cover. The electromagnet includes a cylinder, a valve core accommodated in the cylinder, and coils arranged on both sides of the valve core. A membrane cavity is formed between the valve cover and the diaphragm.

[0007] The valve cover is provided with a water inlet through hole communicating with the membrane cavity and a water outlet through hole communicating with the third receiving cavity. The movement of the valve core makes the water inlet through hole communicate with the outlet through hole or is blocked.

[0008] The electromagnet is laterally arranged in the valve cover. The water inlet channel and the water outlet channel are located on the side of the valve cover close to the valve core.

[0009] The housing is also provided with a through hole that communicates with the second housing cavity and the third housing cavity. The water outlet channel communicates with the third receiving cavity through the through hole.

[0010] The diaphragm includes a moving film and a moving film installed on the moving film. The moving plate is also provided with a water supply hole communicating with the membrane cavity.

[0011] The diaphragm is also provided with a pin matched with the water replenishing hole.

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[0012] The circuit board includes a first part and a second part. The sensor is installed on the first part, and the processor is installed on the second part. After the sensor assembly is installed on the housing, the first part of the circuit board is located at the front end face of the housing, the side where the sensor is installed faces the required sensing area, and the second part is located in the first accommodating cavity.

[0013] The circuit board is a flexible circuit board.

[0014] The openings of the first housing cavity and the third housing cavity are at the front end of the housing, and the openings of the second housing cavity and the water inlet cavity are at the rear end of the housing, and the water inlet cavity is located in the second housing Side of the cavity.

[0015] The object of the present invention is achieved through the second technical solution as follows: an automatic water outlet device, including an automatic water outlet control device installed at the water outlet position of the automatic water outlet device. The automatic water outlet control device is communicated with the water inlet pipe of the automatic water outlet device, and includes a housing, a sensor assembly contained in the housing, a water outlet assembly and a solenoid valve assembly. The housing includes a first housing cavity for accommodating the sensor assembly, a second housing cavity for accommodating the solenoid valve assembly, a third housing cavity for accommodating the water outlet assembly, and a water inlet cavity communicating with the water inlet pipe. The sensor component includes a circuit board and a sensor arranged on the circuit board to detect whether a target enters or leaves the sensing area of the automatic water outlet device. A processor is arranged on the circuit board. The solenoid valve assembly includes a solenoid valve electrically connected with the circuit board and a diaphragm matched with the solenoid valve. The movement of the diaphragm makes the water inlet cavity communicate with the third receiving cavity or is blocked to realize the water outlet or stop of the water outlet component.

[0016] The solenoid valve includes a valve cover and an electromagnet arranged in the valve cover, wherein the electromagnet includes a cylinder, a valve core accommodated in the cylinder, and coils provided on both sides of the valve core. A membrane cavity is formed between the valve cover and the diaphragm.

[0017] The valve cover is provided with a water inlet through hole communicating with the membrane cavity and a water outlet through hole communicating with the third receiving cavity. The movement of the valve core makes the water inlet through hole communicate with the outlet through hole or is blocked.

[0018] The housing is also provided with a through hole that communicates with the second housing cavity and the third housing cavity. The water outlet channel communicates with the third receiving cavity through the through hole.

[0019] The electromagnet is laterally arranged in the valve cover. The water inlet channel and the water outlet channel are located on the side of the valve cover close to the valve core.

[0020] The diaphragm includes a moving film and a moving film installed on the moving film. The moving plate is also provided with a water supply hole communicating with the membrane cavity.

[0021] The diaphragm is also provided with a pin matched with the water replenishing hole.

[0022] The circuit board includes a first part and a second part, wherein the inductor is mounted on the first part, and the processor is mounted on the second part. After the sensor assembly is installed on the housing, the first part of the circuit board is located at the front end face of the housing, the side where the sensor is installed faces the required sensing area, and the second part is located in the first accommodating cavity.

[0023] The circuit board is a flexible circuit board.

[0024] The openings of the first housing cavity and the third housing cavity are at the front end of the housing, and the openings of the second housing cavity and the water inlet cavity are at the rear end of the housing, and the water inlet cavity is located in the second housing Side of the cavity.

[0025] The automatic water outlet device is an automatic induction faucet.

[0026] Compared with the prior art, the automatic water outlet control device of the present invention has a compact structure and is conducive to product miniaturization. The automatic water discharge device installed with the automatic water discharge control device has a more compact structure and is convenient for installation and maintenance.

Description of the drawings

[0027] FIG. 1 is a three-dimensional schematic diagram of the automatic water outlet control device of the present invention.

[0028] FIG. 2 is an exploded schematic view of FIG. 1.

[0029] FIG. 3 is another perspective view of FIG. 2.

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[0030] FIG. 4 is a schematic cross-sectional view taken along line A-A in FIG. 1.

[0031] FIG. 5 is a schematic cross-sectional view taken along line B-B in FIG. 4.

[0032] FIG. 6 is a schematic cross-sectional view taken along line CC in FIG. 4.

[0033] FIG. 7 is a schematic cross-sectional view taken along line DD in FIG. 6.

[0034] FIG. 8 is a schematic partial cross-sectional view taken along the line E-E in FIG. 5.

[0035] FIG. 9 is a schematic diagram of an automatic sensor faucet installed with an automatic water outlet control device.

Detailed ways

[0036] Various embodiments of the present invention will be described in detail below with reference to the drawings, in which the same structures or functions are marked with the same numbers. It should be pointed out that the purpose of the drawings is only to facilitate the description of the specific embodiments of the present invention, and is not a redundant description or limitation of the scope of the present invention. In addition, the drawings are not necessarily drawn to scale.

[0037] As shown in FIGS. 1 to 3, the present invention relates to an automatic water outlet control device 100 that overcomes the deficiencies in the prior art, is highly integrated, and is conducive to product miniaturization, and an automatic water outlet device 100 installed with the automatic water outlet control device 100 Device (such as automatic sensor faucet, etc., as shown in Figure 9).

[0038] The automatic water outlet control device 100 of the present invention includes a housing 1, a sensor assembly 2 installed in the housing 1, a solenoid valve assembly 3 electrically connected to the sensor assembly 2, and a water outlet assembly 4. In addition, the automatic water outlet control device 100 of the present invention also includes an end cover 5 that mainly functions as a seal.

[0039] The housing 1 is roughly cylindrical and has a plurality of accommodating cavities, including: a first accommodating cavity 11 for accommodating the sensor assembly 2, a second accommodating cavity 12 for accommodating the solenoid valve assembly 3, and a water outlet assembly 4 The third accommodating cavity 13 and the water inlet cavity 14 communicating with the water inlet pipe of the automatic water outlet device. The water inlet cavity 14 is located at one side of the second receiving cavity 12, and the structure is more compact. In addition, the housing 1 is also provided with a through hole 15 connecting the second receiving cavity 12 and the third receiving cavity 13.

[0040] The housing 1 includes front and rear ends, wherein the front end faces the user, and the rear end is installed inside the automatic water outlet device to communicate with the water inlet pipe. The openings of the first accommodating cavity 11 for accommodating the sensor assembly 2 and the third accommodating cavity 13 for accommodating the water outlet assembly 4 are at the front end of the housing 1, and the openings of the second accommodating cavity 12 and the water inlet cavity 14 for accommodating the solenoid valve assembly 3 The opening is at the rear end of the housing 1. After installation, the sensor assembly 2 and the water outlet assembly 4 are roughly located at the front end surface of the housing 1.

[0041] The sensor assembly 2 includes a circuit board 21 electrically connected to the solenoid valve 31 and an inductor (not shown) provided on the circuit board 21. The circuit board 21 is also provided with a processor and other electronic components. The sensor is generally an infrared sensor, including an infrared transmitter and an infrared receiver. Of course, the sensor may also be a microwave sensor, an ultrasonic sensor and other types of proximity sensors for detecting whether a target enters or leaves the sensing area. The circuit board 21 includes a first part 211 and a second part 212. An inductor is installed on the first part 211, and electronic components such as a processor are installed on the second part 212. A light-transmitting plate 22 is also provided on the outer surface of the first part 211 where the sensor is installed. During installation, the second part 212 is installed in the first receiving cavity 11, and the first part 211 where the light-transmitting plate 22 is installed is located at the front end surface of the housing 1.

[0042] In a preferred embodiment of the present invention, the circuit board 21 is a flexible circuit board, so that the second part 212 can be folded or rolled to be easily accommodated in the first receiving cavity 11. In general, the water outlet assembly 4 is the same as the housing 1, and is cylindrical. In order to cooperate with the water outlet assembly 4 to be installed at the position of the front end surface of the housing 1, the first part 211 of the circuit board 21 and the light-transmitting plate 22 are approximately crescent-shaped.

[0043] The solenoid valve assembly 3 includes a solenoid valve 31, and a diaphragm 32 that cooperates with the solenoid valve 31. Power on and off

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The magnetic valve 31 drives the diaphragm 32 to move. The diaphragm 32 is arranged below the solenoid valve 31.

4 is a schematic cross-sectional view taken along the line A-A in FIG. 1. 5 and 6 are schematic cross-sectional views taken along line B-B and line CC in FIG. 4, respectively. Wherein, the A-A line is cut on the straight line between the center of the moving membrane 322 and the center of the water outlet channel 317. The B-B line is cut at the position of the membrane cavity 33. The CC line is cut at the center of the valve core 314 of the electromagnet 312.

[0045] As shown in FIG. 4, the solenoid valve 31 includes a valve cover 311 and an electromagnet 312 contained in the valve cover 311. The diaphragm 32 is located below the valve cover 311, and a film cavity 33 is formed between the diaphragm 32 and the valve cover 311. The electromagnet 312 includes a cylinder 313, a valve core 314 that is housed in the cylinder 313 and can move back and forth, and coils 315 arranged on both sides of the valve core 314. When the solenoid valve 31 is energized or de-energized, the valve core 314 can telescopically move back and forth under the action of electromagnetic force. In addition, the solenoid valve 31 is also provided with a cable 310 electrically connected to the circuit board 21.

[0046] FIG. 7 is a schematic cross-sectional view taken along line DD in FIG. 6. The DD line is cut on the water inlet channel 316.

[0047] Further in conjunction with FIG. 5 to FIG. 7, the valve cover 311 is provided with a water inlet channel 316 communicating with the membrane cavity 33 and a water outlet channel 317 communicating with the third receiving cavity 13. After the water outlet assembly 4 is installed in the third accommodating cavity 13, the water outlet channel 317 communicates with the third accommodating cavity 13, that is, the water outlet channel 317 is connected to the water outlet assembly 4. When the solenoid valve 31 is closed, the valve core 314 extends and is blocked between the water inlet channel 316 and the water outlet channel 317, that is, the water inlet channel 316 and the water outlet channel 317 are blocked. When the solenoid valve 31 is opened, the valve core 314 retracts into the cylinder 313. The water inlet channel 316 communicates with the water outlet channel 317. In another preferred embodiment of the present invention, a seal is provided on the free end of the valve core 314. This arrangement can provide a good sealing effect when the valve core 314 is blocked between the water inlet channel 316 and the water outlet channel 317.

[0048] The diaphragm 32 further includes a movable diaphragm 321 and a movable diaphragm 322 installed on the movable diaphragm 321. The moving piece 322 is also provided with a water replenishment hole 323 communicating with the membrane cavity 33. The moving diaphragm 321 is generally a softer rubber material, and the moving plate 322 is generally a harder plastic material. In a preferred embodiment of the present invention, the diaphragm 32 also has a pin 324 matched with the water replenishment hole 323 to prevent foreign matter from blocking the water replenishment hole 323 (refer to FIG. 8). When the diaphragm 32 is working, the movable diaphragm 322 drives the movable diaphragm 321 to move.

[0049] In a preferred embodiment of the present invention, the electromagnet 312 is transversely arranged in the valve cover 311, and the water inlet channel 316 and the water outlet channel 317 are located on the side of the valve cover 311 close to the valve core 314. It is true that in other embodiments of the present invention, the electromagnet 312 may be installed at other suitable angles. The water inlet channel 316 and the water outlet channel 317 are appropriately adjusted according to the installation position of the electromagnet 312.

[0050] The end cover 5 is provided with a water inlet 51 communicating with the water inlet cavity 14. The end cover 5 seals the rear end of the housing 1 except for the water inlet cavity 14. The power cord (not shown) connected to the circuit board 21 is connected through the outlet 52 of the end cover 5 and connected to the external power source of the automatic water outlet device. The external power source may be a DC power source or an AC power source.

[0051] In another embodiment of the present invention, the end cap 5 is not necessary, it can be replaced by a sealing material, and only the area of the housing 1 that needs to be sealed except for the water inlet cavity 14 is effectively sealed.

[0052] In addition, the water outlet assembly 4, as the water outlet part of the water outlet device, may be a bubbler installed on an automatic sensor faucet, or a water sprayer installed on an automatic sensor urinal.

[0053] During installation, the sensor assembly 2 is inserted into the first receiving cavity 11 from the front end of the housing 1. The first part 211 of the circuit board 21 on which the inductor is mounted is located at the end face of the front end of the housing 1, so that the inductor can be in an ideal sensing position. The casing 1 seals the circuit board 21 in the first receiving cavity 11 to prevent water from flowing into the circuit board 21.

[0054] The water outlet assembly 4 is inserted into the third receiving cavity 13 from the front end of the housing 1, and the outer end of the water outlet assembly 4 is

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At the position of the end face of the front end of the housing. In a preferred embodiment of the present invention, the water outlet assembly 4 and the third receiving cavity 13 are provided with threads, which are installed on the housing 1 through a threaded connection. Of course, the connection mode of the water outlet assembly 4 and the housing 1 is not limited to this, and connection modes such as screw installation or welding fixation can also be used.

[0055] FIG. 8 is a schematic partial cross-sectional view taken along the line E-E in FIG. 5. The E-E line is cut on the straight line where the centers of the diaphragm 32 and the water supplement hole 323 are located. Furthermore, as shown in FIG. 8, the solenoid valve assembly 3 is inserted into the second receiving cavity 12 from the rear end surface of the housing 1. After the solenoid valve assembly 3 is installed, the diaphragm 32 is located between the water inlet cavity 14 and the third receiving cavity 13. The movement of the diaphragm 32 can make the water inlet cavity 14 communicate with the third receiving cavity 13 or be blocked. After the water outlet assembly 4 is installed in the third accommodating cavity 13, the water inlet cavity 14 communicates with the third accommodating cavity 13 or is blocked, that is, the water inlet cavity 14 communicates with the water outlet assembly 4 or is blocked. When the diaphragm 32 is blocked between the water inlet cavity 14 and the third containing cavity 13 by the water pressure in the membrane cavity 33, the water inlet cavity 14 and the third containing cavity 13 are blocked. The water flow is sealed in the water inlet cavity 14. As shown in the current state shown in FIG. 8, the diaphragm 32 is blocked between the water inlet cavity and the third receiving cavity 13. When the water in the membrane cavity 33 is released, the membrane 32 moves in the direction of the membrane cavity 33. The water inlet cavity 14 communicates with the third receiving cavity 13. In this way, the water flow in the water inlet cavity 14 can flow into the third receiving cavity 13 and be discharged from the water outlet assembly 4.

[0056] After the solenoid valve assembly 3 is installed on the housing 1, the through hole 15 is butted with the water outlet channel 317. Therefore, the water flow reaching the water outlet channel 317 enters the third receiving cavity 13 through the through hole 15 and can be discharged from the water outlet assembly 4. In a preferred embodiment of the present invention, for sealing considerations, a part of the diaphragm 32 is located between the water outlet channel 317 and the through hole 15. Therefore, the diaphragm 32 is also provided with a small hole 325 so that the small hole 325 It is connected with the water outlet channel 317 and the through hole 15 to form a water flow channel. Of course, it is also possible to directly connect the water outlet channel 317 with the through hole 15 and seal it with an additional sealing element.

[0057] The end cover 5 is installed on the end surface of the rear end of the housing 1 to seal the solenoid valve assembly 3 and the sensor assembly 2, and the water inlet 51 on the end cover 5 butts with the water inlet cavity 14 of the housing 1.

[0058] In this way, the automatic water outlet control device 100 of the present invention is assembled together.

[0059] When in use, the automatic water outlet control device 100 is installed on an automatic water outlet device, such as an automatic induction faucet, an automatic induction urinal, and other automatic kitchen and bathroom products. The automatic water outlet control device 100 is installed at the water outlet position of the automatic water outlet device.

[0060] The following description will take the automatic water outlet control device 100 installed on an automatic sensor faucet as an example. As shown in FIG. 9, the automatic sensor faucet 200 of the present invention includes a body 201 and a water nozzle 202. The automatic water outlet control device 100 is installed at the position of the water nozzle 202 of the automatic sensor faucet 200. The sensor assembly 2 faces the sensing area of the automatic sensing faucet 200. The water outlet assembly 4 faces the use area of the automatic sensor faucet 200. The power cord 9 is connected to an external power source (not shown) of the faucet through the faucet body 201. When the external power supply adopts direct current, the external power supply is installed under the basin where the automatic induction faucet is installed or in the faucet body 201. Further, when conditions such as power consumption and volume permit, the external power supply adopts direct current, such as lithium electronics. The lithium electronics can be directly installed at the rear end of the housing 1 of the automatic water outlet control device 100 or directly into the housing 1, and installed in the faucet 202 of the faucet 200 together with the automatic water outlet control device 100. Therefore, there is no need to connect the faucet body 201 through the power cord 9 to reduce parts and facilitate installation and maintenance.

[0061] The automatic water outlet control device 100 is installed on the faucet faucet 202 by means of threads or screws. After the water flows into the water inlet cavity 14 of the housing 1 from the water inlet pipe of the automatic induction faucet 200, it flows through the water replenishment hole 323 of the diaphragm 32 and enters the diaphragm cavity 33 between the diaphragm 32 and the solenoid valve 31. Further, when water flows into the water inlet channel 316 of the solenoid valve 31 and reaches the initial position of the solenoid 312 spool 314, the solenoid valve 31 is closed, and the solenoid 312 spool 314 is closed.

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It is blocked between the water inlet channel 316 and the water outlet channel 317. The water flow is blocked by the valve core 314 of the electromagnet 312 and cannot flow from the water inlet channel 316 to the water outlet channel 317. At this time, because the amount of water in the membrane cavity 33 is constant, under the action of the water pressure, the membrane 32 is always blocked between the water inlet cavity 14 and the third receiving cavity 13, so that the water flow is sealed between the water inlet cavity 14 and the solenoid valve. Inside the component 3, it cannot flow out of the water outlet component 4.

[0062] When the sensor detects that a target has entered the sensing area, that is, it detects that a human hand enters the faucet sensing area, the processor on the circuit board 21 processes the detection signal, and further controls the solenoid valve 31 to open. After the solenoid valve 31 is opened, the valve core 314 of the solenoid 312 retracts under the action of electromagnetic force and cannot block the water inlet channel 316 and the water outlet channel 317. At this time, the water flows from the water inlet channel 316 to the water outlet channel 317, passes through the small hole 325 and the through hole 15, enters the third receiving cavity 13 and flows out of the water outlet assembly 4. Therefore, the amount of water in the membrane cavity 33 decreases. As a result, the pressure on the side of the diaphragm 32 facing the membrane cavity 33 is reduced. Under the action of pressure, the diaphragm 32 moves in the direction of the diaphragm cavity 33 so that the diaphragm 32 cannot block the water inlet cavity 14 and the third receiving cavity 13. The water inlet cavity 14 is connected to the third receiving cavity 13, and the water flow can directly flow from the water inlet cavity 14 into the third receiving cavity 13 and out of the water outlet assembly 4, so as to realize the automatic water outlet of the automatic sensor faucet 200.

[0063] When the sensor detects that the target has left the sensing area, that is, no user uses the automatic sensing faucet 200. The processor processes the detection signal and controls the solenoid valve 31 to close. The solenoid valve 31 is closed, and the valve core 314 returns to the initial position, blocking the water inlet channel 316 and the water outlet channel 317. At this time, the water flow continuously enters the membrane cavity 33 from the water replenishment hole 323 of the diaphragm 32, but cannot flow out from the water outlet channel 317. As a result, the water in the membrane cavity 33 between the diaphragm 32 and the solenoid valve 31 increases again, and the pressure on the side of the diaphragm 32 facing the membrane cavity 33 increases and is greater than the pressure on the side of the diaphragm 32 facing away from the membrane cavity 33. Withstand the pressure of the water. Therefore, the diaphragm 32 moves in a direction away from the membrane cavity 33. In this way, the diaphragm 32 is again blocked between the water inlet cavity 14 and the third receiving cavity 13, and the water flow is sealed in the water inlet cavity 14 and the solenoid valve assembly 3. As a result, the water in the water inlet cavity 14 cannot flow into the third receiving cavity 13, thereby realizing the automatic water stop of the automatic sensor faucet 200. [0064] The movement of the spool 314 of the solenoid valve 31 causes the water inlet channel 316 to communicate with the water outlet channel 317 or is blocked. The movement of the diaphragm 32 can make the water inlet cavity 14 communicate with the third receiving cavity 13 or be blocked. Therefore, the solenoid valve 31 is opened and closed, and the diaphragm 32 is driven to move, so that the third receiving cavity 13 and the water inlet cavity 14 are communicated or blocked, and water is discharged. The water outlet and water stop of the component 4, and finally realize the automatic water outlet or automatic water stop of the automatic sensor faucet 200.

[0065] The automatic water outlet control device 100 of the present invention integrates the sensor assembly 2, the solenoid valve assembly 3 and the water outlet assembly 4 in the housing 1, thereby making the structure more compact and conducive to product miniaturization. When installed on an automatic water outlet device such as an automatic sensor faucet 200, it can be directly installed at the position of the faucet faucet 202, which is convenient for installation and can simplify the structure without adding additional components such as solenoid valve assembly 3 and controller assembly. In this way, the automatic water discharging device installed with the automatic water discharging control device 100 has a more compact structure and convenient installation and maintenance.

[0066] At the same time, the solenoid valve assembly 3 in the automatic water outlet control device 100 of the present invention has a smaller volume and a higher efficiency. The electromagnet 312 is laterally arranged in the valve cover 311 of the solenoid valve 31, and the diaphragm 32 is located below the solenoid valve 31. The valve cover 311 is provided with a water inlet channel 316 and a water outlet channel 317, which are conducted or blocked by the movement of the valve core 314 of the electromagnet 312, so that the solenoid valve assembly 3 is opened or closed. This arrangement allows the solenoid 312 and the valve core 314 to move a short distance, and the solenoid valve assembly 3 can be opened or closed. In the prior art, the solenoid valve core is generally used to directly act on the diaphragm. However, due to the long stroke of the diaphragm movement, the stroke of the valve core movement is also lengthened, which reduces the efficiency of the solenoid valve and the volume cannot be reduced. Therefore, compared with the prior art, the present invention shortens the movement stroke of the electromagnet 312 and the spool 314 through the above structure, and improves the efficiency of the electromagnetic force, thereby making the electromagnet 312 smaller, and finally making the volume of the solenoid valve assembly 3 smaller. Become smaller. Of course, if space permits, the automatic water outlet control device 100 of the present invention can also

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The method of using the valve core to directly drive the diaphragm in the prior art is adopted.

[0067] Further, the sensor assembly 2 and the water outlet assembly 4 are installed from the front end of the housing 1, and the solenoid valve assembly 3 is installed from the rear end of the housing 1. The installation of the automatic water outlet control device 100 of the present invention is simple, which is beneficial to production.

[0068] Although the specific embodiments of the present invention have been disclosed above, they are not a limitation of the scope of the present invention. Modifications and changes to the specific implementations described above by those skilled in the art are also included in the scope of the present invention.

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