Conductive elastic sheet structure

Conductive shrapnel structure

The present invention relates to a conductive elastic structure, and more particularly to a conductive elastic structure that strengthens the strength of the elastic piece by the reinforcing portion.

Conductive shrapnel is widely used in everyday life, such as as a connection to the battery, electrical connection of the antenna, and even for anti-electromagnetic interference grounding, heat conduction, or buffering. A conventional conductive shrapnel, such as the invention patent of the Republic of China No. I377738, is a surface-mounted elastic piece having a support section and a blocking adsorption section, comprising a mounting section, an elastic reflex section, an auxiliary section, an elastic arm section, a support section, and a cover. Blocking adsorption section. By blocking the adsorption section, the deformation range of the elastic arm segments when colluding with each other or being pulled by the foreign object is dispersed, and the pressure is dispersed under the normal use to support the support section, thereby enhancing the buffering effect and maintaining the use efficiency of the elastic piece. Or, as for the Republic of China No. M446484, which is a surface mount metal dome having a double stop high limit segment, including a mounting section, a spring arm section, and a high limit section, when the metal dome is subjected to an applied pressure, the bullet The arm section will have a corresponding deformation. When it is lowered to a certain extent, it can be supported by the high limit section, so that the arm section does not fully withstand all the pressure, and when the arm section is applied an outward When pulling force, it can also be protected by the high limit section, so that the extent of pulling the arm section is restricted, which can prevent the permanent deformation of the structure when the arm section is subjected to excessive pressure or tension, so that the metal dome can have Excellent resistance to stress and Tensile properties.

However, as in the above-mentioned structure of the conductive elastic piece, the elastic reflexing section (patent No. I377738) or the elastic arm section (patent M446484) is a one-piece structure, and the other reinforcing structures are not connected on both sides, so When the elastic piece is pressed down, the elastic reflexing section and the elastic arm section are easily deformed by force, thereby causing detachment from the solder, causing a change in the position of the entire elastic piece, so that the electronic product to which the elastic piece is applied is in poor contact, and the quality is good. The problem.

The main purpose of this creation is to solve the problem that the supporting structure of the conventional structure shrapnel is insufficient, and it is easy to peel off the solder to cause defective products.

To achieve the above object, the present invention provides a conductive elastic structure that is soldered to a circuit board. The conductive elastic structure includes a housing and a conductive portion. The housing includes a bottom wall welded to the circuit board. a first peripheral wall connected to the bottom wall, two second peripheral walls respectively disposed on opposite sides of the first peripheral wall and connected to the bottom wall, and two disposed between the first peripheral wall and the second peripheral wall And connecting the first peripheral wall and the reinforcing portion of the second peripheral wall. The conductive portion includes a connecting portion connected to the first peripheral wall, and a contact portion connected to the connecting portion and being vertically displaced with respect to the housing when the connecting portion is supported by the connecting portion.

Further, the housing has at least one weld groove.

Further, each of the second peripheral walls has a stop portion extending toward the connecting portion and disposed above the connecting portion to restrict the connecting portion from being displaced up and down.

Further, the contact portion is a bump.

Further, the contact portion includes a connecting portion connected to the connecting portion, a bent portion connecting the connecting portion and bent toward the bottom wall, and a connecting portion connected to the bent portion and extending to the second second peripheral wall The limit segment between.

Further, the limiting segment includes a limiting protrusion extending toward the second peripheral wall, and each of the second peripheral walls has a stop extending toward the limiting segment to limit the displacement of the limiting projection.

Further, the bottom wall has a perforation.

Further, the first peripheral wall, the second second peripheral wall, and the two reinforcing portions are integrally connected to the bottom wall.

Further, the housing includes a third peripheral wall disposed opposite to the first peripheral wall and connecting the second peripheral walls.

The present invention has the beneficial effects that when the contact portion is pressed up and down and displaced up and down, the structure between the first peripheral wall and the second peripheral wall is strengthened by the reinforcing portion, so that the first peripheral wall is not affected by the The connecting parts are interlocked to cause deformation, thereby ensuring that the creation is not affected by the pressure path and the problem of disconnecting from the board.

<p>1 boards</p><p>2Shell</p><p>21 bottom wall</p><p>211Perforation</p><p>22First week wall</p><p>23Second week wall</p><p>231stop</p><p>24 Strengthening Department</p><p>25 third week wall</p><p>26 soldering trough</p><p>3Electrical Department</p><p>31Connecting Department</p><p>32, 32aContacts</p><p>321 Connection section</p><p>322Bend section</p><p>323Limited paragraph</p><p>324 Limit bumps</p><p>4Solder</p><p>S force</p>

FIG. 1 is a schematic view showing the appearance of a first embodiment of the structure of the conductive elastic sheet.

Fig. 2 is a view showing a pressure-activated operation of the first embodiment of the present invention.

FIG. 3 is a schematic view showing the appearance of a second embodiment of the conductive elastic structure of the present invention.

The detailed description and technical content of this creation are described below with reference to the following drawings: Please refer to FIG. 1 and FIG. 2, which are schematic diagrams of the first embodiment of the structure of the conductive elastic piece and the pressure actuating diagram, as shown in the figure: The present invention is a conductive elastic structure that is soldered to a circuit board 1. The conductive elastic structure includes a housing 2 and a conductive portion 3. The housing 2 includes a bottom wall 21 soldered to the circuit board 1. a first peripheral wall 22 connected to the bottom wall 21, two second peripheral walls 23 respectively disposed on opposite sides of the first peripheral wall 22 and connected to the bottom wall 21, and two first peripheral walls 22 are disposed a reinforcing portion 24 between the second peripheral wall 23 and connecting the first peripheral wall 22 and the second peripheral wall 23, and a third peripheral wall 25 disposed opposite to the first peripheral wall 22 and connecting the second peripheral walls 23, The first peripheral wall 22, the second second peripheral wall 23, the third peripheral wall 25, and the bottom wall 21 form a box-shaped casing, and further, the first peripheral wall 22 and the second peripheral wall 23 The second reinforcing portion 24 and the third peripheral wall 25 are integrally connected to the bottom wall 21 . The conductive portion 3 includes a connecting portion 31 connected to the first peripheral wall 22, and a connecting portion 31 connected to the connecting portion 31 and being pressed against the housing 2 with the connecting portion 31 as an arm. Displaced contact portion 32.

In the first embodiment of the present invention, the housing 2 is soldered to the circuit board 1 via a solder 4, and the contact portion 32 includes a connecting portion 321 connected to the connecting portion 31, and the connecting portion 321 is connected. And a bending section 322 bent toward the bottom wall 21, and a limiting section 323 connected to the bending section 322 and extending between the two second peripheral walls 23. When the contact portion 32 is pressed by force, for example, and is pressed by a battery (not shown) and pressed by the weight of the battery, the bending portion 322 is subjected to a downward force due to the weight of the battery, and the limiting portion is at this time. 323 abutting against the bottom wall 21 to generate a supporting force, the bending section 322 being deformed by the downward weight of the battery and the supporting force of the limiting section 323, and due to the limiting section The 323 has an angle with the bottom wall 21. Therefore, when the limiting section 323 receives a downward pressing pressure path, the limiting section 323 will slide along the bottom wall 21, thereby providing the bending section 322. The connecting portion 321 of the contact portion 32 is connected to the connecting portion 31. When the limiting portion 323 slides along the bottom wall 21, the connecting portion 321 rotates with the connecting portion 31 as a fulcrum. Stroke, and thus providing a reaction force of the connecting portion 31, so that the connecting portion 31 interlocks the first peripheral wall 22, and the first peripheral wall 22 is connected to the second peripheral wall 23 through the two reinforcing portions 24, thereby being dispersed The force transmitted from the connecting portion 31 to the first peripheral wall 22 prevents the first peripheral wall 22 from being deformed, thereby avoiding peeling from the solder 4, and thus can be firmly coupled to the circuit board 1.

Further, the limiting segment 323 includes a limiting protrusion 324 extending toward the second peripheral wall 23, and each of the second peripheral walls 23 has a length extending toward the limiting portion 323 to limit the displacement of the limiting protrusion 324. Stop portion 231. When the contact portion 32 is pulled by a counterclockwise force S, the two limiting protrusions 324 abut against the two stopping portions 231, so that the limiting portion 323 is not generated by the counterclockwise force S. Rotation in the counterclockwise direction avoids squeezing the connecting section 321 and ensures that the contact portion 32 does not deform accordingly.

In addition, in order to make the present invention more securely fixed to the circuit board 1, the bottom wall 21 has a through hole 211, and the housing 2 has at least one welding groove 26, and the welding groove 26 is disposed on the bottom wall 21 and a junction of the first peripheral wall 22 or the second peripheral wall 23, during which the high-temperature liquid solder 4 is applied to the circuit board 1, and the conductive elastic structure is placed downward from the upper side of the circuit board 1. The solder 4 is pressed and the solder 4 is extruded to spread the solder 4 to a place where the resistance is small, and the through hole 211 and the soldering groove 26 provide a space for the solder 4 to flow in, which makes the solder 4 more concentrated. The flow of the through hole 211 and the soldering groove 26 reduces the chance of the solder 4 overflowing, and the solder 4 is concentrated in the soldering groove 26, so that the bonding between the housing 2 and the circuit board 1 is further improved. stable.

In addition to the above-described bent aspect, the contact portion 32 of the present invention has another embodiment, as shown in FIG. 3, in another embodiment of the present invention, the contact portion 32a is a bump. Each of the second peripheral walls 23 has a stop portion 231 extending toward the connecting portion 31 and disposed above the connecting portion 31 to restrict the connecting portion 31 from being displaced up and down. Through the design of the bumps, the creation is more precise in contact with the battery, because the top of the bump is circular and can be accessed at any angle. When the contact portion 32a is pressed down by the weight of the battery, the contact portion 32a is vertically displaced by the connecting portion 31, and the first peripheral wall 22 passes through the reinforcing portions 24 and the portions The support of the second peripheral wall 23 causes the first peripheral wall 22 to be deformed without being interlocked by the connecting portion 31, thereby avoiding peeling from the solder 4.

In summary, when the contact portion 32 of the present invention is pressed by the force and moved up and down, the structure between the first peripheral wall 22 and the second peripheral wall 23 is strengthened by the reinforcing portion 24, so that the first peripheral wall 22 is The deformation of the connecting portion 31 is not caused by the connection portion 31, thereby ensuring that the creation is not affected by the pressure path and the problem of the separation from the circuit board 1 occurs. The combination of the housing 2 and the circuit board 1 is further tightened through the soldering groove 26.