Module type controller

Description: TECHNICAL FIELD [Detailed description of the invention]

【0001】

[Technical field to which the invention belongs]

The present invention relates to a modular controller in which a plurality of controllers are arranged adjacent to each other on a rail, and particularly relates to a heat dissipation measure thereof.

【0002】

[Conventional technology]

FIG. 7 is a perspective view showing the configuration of a conventional modular controller. In the figure, 1 is a base, 2 is a substantially rectangular parallelepiped housing in which a control board is arranged inside, and 13 is a terminal block attached to the front surface of the housing 2.

【0003】

Next, the operation will be described. Each modular controller is built into a control unit, etc., and when the power is turned on in that state, information from the input terminal is acquired according to the control instruction signal from the main unit, and output based on this information. It controls the terminal for.

【0004】

[Problems to be Solved by the Invention]

Since the conventional modular controller is configured as described above, the back surface and the front surface are inevitably used for attaching other members, and the right side surface and the left side surface are adjacent to each other. Since the other modular controller is arranged and the whole is arranged in contact with the other modular controller, the through hole for heat dissipation can be formed only on the remaining upper side surface and lower side surface. There were issues such as.

【0005】

Therefore, it is not possible to obtain a sufficient cooling effect so that the heat of the control circuit arranged inside the housing 2 can be appropriately dissipated, and by extension, an appropriate gap is formed inside the housing 2. It became necessary to make the housing 2 a little larger, which was one of the factors that hindered the miniaturization and multi-functionality (dissipating a large amount of heat) of the modular controller.

【0006】

In particular, in a modular controller that measures temperature, the effect of temperature changes on the terminal block 13 deteriorates its measurement accuracy, so measures such as providing the terminal block 13 on the lower side are effective. In such a case, a through hole for heat dissipation can be formed only on the upper side surface. As a result, even if a through hole is formed on the upper side surface, it is assumed that outside air will not even be introduced into the housing 2 depending on the installation situation, and this heat dissipation problem becomes a particularly serious problem.

【0007】

The present invention has been made to solve the above-mentioned problems, and through holes can be formed on a plurality of side surfaces, thereby achieving miniaturization and multi-functionality (dissipating a large amount of heat). The purpose is to obtain a modular controller that can be used.

【0008】

[Means for solving problems]

The modular controller according to the present invention is a modular controller that can be mounted by arranging a plurality of the modules on a rail, and is adjacent to a base that is attached to and detached from the rail and that is fixed to the base and attached to the rail. A housing in which a pair of side surfaces are in contact with the other modular controller, terminals arranged on the housing at a position that does not interfere with the other modular controller when mounted on the rail, and the inside of the housing. The housing is formed in such a shape that at least a part of the side surface thereof is separated from the other modular controller when the housing is attached to the rail. It is what has been done.

【0009】

In the modular controller according to the present invention, at least a part of the housing is formed in a substantially rectangular parallelepiped shape, and the width of the front surface opposite to the width of the back surface to which the base is fixed is narrower than the width of the back surface to which the base is fixed. Is formed in a narrowed shape.

【0010】

In the modular controller according to the present invention, the housing has terminals arranged on the lower side surface adjacent to the back surface to which the base is fixed, and a plurality of through holes are formed on the upper side surface, the right side surface, and the left side surface. It is something that is.

【0011】

In the modular controller according to the present invention, a plurality of through holes are formed in the housing over at least a plurality of side surfaces thereof, and the plurality of through holes are classified into at least two or more groups based on the opening position. The through holes of each group are opened diagonally with respect to the outer surface of the housing so that the opening direction is biased toward the opening position of the through holes of the other group.

【0012】

In the modular controller according to the present invention, a plurality of through holes are classified into at least an upper group and a lower group of the modular controller.

【0013】

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described. Embodiment 1. FIG. 1 is an external view showing a modular controller according to a first embodiment of the present invention. In the figure, (a) is a top view, (b) is a front view, (c) is a right side view, (d) is a rear view, and (e) is a bottom view. In the figure, 1 is a substantially rectangular parallelepiped base, and 2 is a substantially rectangular parallelepiped housing fixed to the base 1.

【0014】

In the base 1, 3 is formed on the back side of the base 1, and 3 is a rail recess having a size suitable for the DIN rail 18, and 4 is an upper engaging portion formed so as to project downward from the upper surface of the rail recess 3. , 5 is a slide engaging part that is movably attached to a part below the rail recess 3 and is usually positioned so that the tip protrudes from the lower surface of the rail recess 3, and 6 is the base 1. A male connector arranged so as to protrude from the left side of the base 1, 7 is a female connector arranged on the right side of the base 1 at a position corresponding to the male connector 6, and 8 is on the upper side of the base 1. It is an arranged power supply connector.

【0015】

In housing 2, 9 is a display portion formed on the front surface, 10 is an upper surface through hole formed on the upper side surface, 11 is an upper side through hole formed on the upper part of the right side surface and the upper part of the left side surface, respectively, and 12 is an upper side surface through hole. The lower side through holes provided in the lower part of the right side surface and the lower part of the left side surface, respectively, and 13 are terminal blocks arranged on the lower side surface.

【0016】

Further, the housing 2 has an outer shape in which the right side surface and the left side surface are narrowed down from the substantially central portion of each to the entire portion closer to the front surface. As a result, the housing 2 formed in a substantially rectangular parallelepiped shape is formed in a shape in which the width of the front surface on the opposite side is narrower than the width of the back surface to which the base 1 is fixed.

【0017】

FIG. 2 is a cross-sectional view showing the internal structure of the housing 2 of the modular controller according to the first embodiment of the present invention. In the figure, 14 is an internal space formed inside the housing 2, the upper surface through holes 10 are opened vertically from the upper side surface to the lower side surface, and the side surface upper through holes 11 are respectively larger than the openings on the outer surface side. The opening on the inner side surface side is opened closer to the lower side surface, and the opening on the inner side surface side is opened closer to the upper side surface than the opening on the outer side surface side, respectively. That is, the side surface upper through hole 11 and the side surface lower through hole 12 are opened obliquely with respect to the outer surface of the housing 2 so that their opening directions are deviated from each other in the direction of the opening position of the other through hole. ..

【0018】

Further, 15 is an internal bottom plate arranged so as to partition between the internal space 14 and the terminal block 13, and 16 is vertically arranged in the internal space 14 of the housing 2, and a part of the internal bottom plate is described above. The control board 17 is an internal connector that electrically connects the terminals of the terminal block 13 and the control board 16 respectively, which are arranged so as to project below 15.

【0019】

FIG. 3 is a control unit including the modular controller according to the first embodiment of the present invention. In the figure, 18 is a DIN rail, 19 is a main unit having a communication function and a power supply function, and 20 is a power supply base for attaching the main unit 19 to the DIN rail 18. Then, as shown in FIG. 6A, the male connector 6 of each base 1 is connected to the female connector 7 of the base 1 arranged on the left side, and is connected to each other to form a DIN rail in a row. Arranged on 18, the main unit 19 and the housing 2 of the modular controller are attached to each of the arranged bases 1 one by one.

【0020】

Even when the modular controllers are continuously attached, the right side surface and the left side surface of each modular controller have an outer shape in which the entire portion closer to the front surface is narrowed down from the substantially central portion of each. Therefore, the side surface upper through hole 11 and the side surface lower through hole 12 formed on the right side surface and the left side surface directly communicate with the outside air and the internal space.

【0021】

FIG. 4 is an explanatory diagram showing a method of attaching the housing 2 to the base 1 in the modular controller according to the first embodiment of the present invention. As shown in the figure, after aligning the upper back surface of the housing 2 with the upper front surface of the base 1, each housing 2 is fixed on the base 1 by pushing the housing 2 so as to rotate from below.

【0022】

Next, the operation will be described. As shown in Fig. 3 (b), each modular controller is built into the control unit, and when its power is turned on, it acquires information from the input terminals in response to control instruction signals from the main unit. , The output terminal is controlled based on this information, and this information is transmitted to the main unit 19 via the male connector 6.

【0023】

Then, in the modular controller of the first embodiment, when such control is performed, the electronic components on the control board 16 generate heat, and the heat raises the temperature of the internal space 14, but the upper surface through hole 10 Since the outside air can be taken directly into the internal space by the upper side through hole 11 and the lower side through hole 12, the temperature rise can be limited within an appropriate range.

【0024】

In particular, in the modular controller of the first embodiment, the outer surface of the housing 2 is such that the upper side through hole 11 and the lower side through hole 12 are open to each other in the direction of the opening position of the other through hole. Since it is opened diagonally with respect to the above, the outside air flows efficiently and smoothly through these channels, effectively limiting the temperature rise compared to the case where the through holes are simply opened vertically. be able to.

【0025】

As described above, according to the first embodiment, in the modular controller capable of arranging and mounting a plurality of the plurality on the DIN rail 18, the base 1 attached to and detached from the DIN rail 18 and the base 1 are attached to and detached from the DIN rail 18. The housing 2 is fixed to and abuts on the right and left sides of the other modular controller adjacent to the DIN rail 18 when mounted on the DIN rail 18, and the other modular controller when mounted on the DIN rail 18. A terminal block 13 arranged on the housing on a lower side surface that does not interfere with the housing 2 and a control board 16 provided inside the housing 2 and controlled via the terminal block 13 are provided, and the housing 2 is provided with the DIN rail. When attached to 18, at least a part of the right side surface and the left side surface is formed so as to be separated from the other modular controller, so that at least a part of the right side surface and the left side surface are adjacent to each other. A gap can be formed between the modular controller and the other modular controllers.

【0026】

Therefore, by forming a plurality of through holes on a part of the right side surface and the left side surface thus formed and the upper side surface on which the terminal block is not arranged, through holes are formed on at least two or more side surfaces. It is possible to efficiently take in and discharge the outside air between them. In particular, since through holes are formed on both the right side surface and the left side surface facing the right side surface, through holes are formed on the pair of facing side surfaces, and the efficiency of introducing the outside air is remarkably increased, and the module There is an effect that the type controller can be further miniaturized and multifunctional.

【0027】

According to the first embodiment, the housing 2 has a terminal block arranged on the lower side surface, and a plurality of through holes 10, 11 and 12 are formed on the upper side surface, the right side surface and the left side surface. , Through holes 10, 11 and 12 are formed on a pair of side surfaces and yet another side surface, so that an efficient cooling effect can be obtained without impairing convenience such as wiring related to the terminal block 13, and a modular type. There is an effect that the controller can be further miniaturized and multifunctional.

【0028】

Further, the outside air warmed by the heat of the control board 16 has a characteristic of rising, but as in the first embodiment, the terminal block 13 is arranged on the lower side surface and at a position separated from the internal space 14. By disposing the terminal block 13, the temperature rise (change) of the terminal block 13 can be suppressed, and the temperature of the control board 16 and the like can be affected by the resistance value change accompanying the temperature rise (change) of the terminal block 13. It has the effect of not deteriorating the measurement accuracy and control accuracy.

【0029】

According to the first embodiment, a plurality of through holes 10, 11, 12 are formed in the housing 2 from the right side surface to the left side surface, and the plurality of through holes are at least two or more based on the opening position. It is classified into groups (for example, 11 and 12), and the through holes of each group are opened diagonally with respect to the outer surface of the housing 2 so that the opening direction is biased toward the opening position of the through holes of the other group. Therefore, the flow of outside air between different groups can be made smooth, and there is an effect that the modular controller can be further miniaturized and multifunctional. In particular, since the above group is classified into the upper part and the lower part of the modular controller, the outside air introduced from the through hole 12 at the lower part rises when heated by the heat of the control circuit, so that the flow of the outside air is smooth. The cooling effect will be significantly improved.

【0030】

In the first embodiment, the side surface upper through hole 11 and the side surface lower through hole 12 both have the same size as the opening on the outer side surface side and the opening on the inner side surface side, and the opening positions are respectively in the vertical direction. By shifting to, the opening direction is diagonally opened with respect to the outer surface of the housing so that the opening direction is biased toward the opening position of the other through hole, and the effect of smoothing the flow of outside air between the through holes is smoothed. However, as shown in FIGS. 5 and 6, the outer side opening and the inner side opening are formed to have different sizes, and the centers of the respective openings are similarly shifted in the vertical direction. Even if it is formed, the same effect can be obtained.

【0031】

[Effect of the invention]

According to the present invention, in a modular controller capable of arranging and mounting a plurality of them on a rail, a base that is attached to and detached from the rail and another that is fixed to the base and adjacent to the rail when mounted. A housing in which a pair of side surfaces are in contact with the modular controller, terminals arranged on the housing at positions that do not interfere with the other modular controller when mounted on the rail, and provided inside the housing. The housing is formed in a shape such that at least a part of the side surface thereof is separated from the other modular controller when the housing is attached to the rail. Therefore, at least in a part of the above-mentioned side surface, a gap can be formed between the modular controller and the other modular controllers arranged adjacent to each other. Therefore, by forming a plurality of through holes on a part of the side surface formed in this way and the side surface on which the terminal is not arranged, through holes can be formed on at least two or more side surfaces. The outside air can be efficiently taken in and discharged between the two. In particular, when through holes are formed on both the side surface and the side surface facing the side surface, the through holes are formed on the pair of facing side surfaces, the efficiency of introducing the outside air is remarkably increased, and the modular controller is compact. It has the effect of further increasing the number of functions and functions.

【0032】

Then, for example, the housing is formed into a substantially rectangular parallelepiped shape, and at least a part of the housing is narrowed down so that the width of the front surface on the opposite side is narrower than the width of the back surface to which the base is fixed. By forming, such an effect can be obtained.

【0033】

According to the present invention, the housing has terminals arranged on the lower side surface adjacent to the back surface to which the base is fixed, and a plurality of through holes are formed on the upper side surface, the right side surface, and the left side surface. Through holes are formed on one pair of side surfaces and the other side surface, so that an efficient cooling effect can be obtained without impairing convenience such as wiring related to terminals, and further miniaturization of the modular controller can be achieved. It has the effect of further increasing the functionality.

【0034】

Further, the outside air warmed by the heat of the control circuit has a characteristic of rising, but by arranging the terminals on the lower side surface in this way, it is possible to suppress the temperature rise (change) of the terminals. There is an effect that the measurement accuracy and control accuracy of the control circuit are not deteriorated by the resistance value change accompanying the temperature rise (change) of the terminal.

【0035】

According to the present invention, a plurality of through holes are formed in the housing over at least a plurality of side surfaces thereof, and the plurality of through holes are classified into at least two or more groups based on their opening positions, and are grouped with each other. Since the through-holes are opened diagonally with respect to the outer surface of the housing so that the opening direction is biased toward the opening position of the through-holes of other groups, the flow of outside air between different groups should be smooth. This has the effect of further reducing the size and increasing the number of functions of the modular controller.

【0036】

In particular, by classifying the above groups into the upper part and the lower part of the modular controller, the outside air introduced from the through hole in the lower part rises when heated by the heat of the control circuit, so the flow of this outside air should be smoothed. The cooling effect will be significantly improved.

[Simple explanation of drawings]

[Figure 1]

It is an external view which shows the modular controller according to Embodiment 1 of this invention ((a) is a top view, (b) is a front view, (c) is a right side view, (d) is a rear view, (e) Is the bottom view).

[Figure 2]

It is sectional drawing which shows the internal structure of the housing of the modular controller by Embodiment 1 of this invention.

[Fig. 3]

A control unit including the modular controller according to the first embodiment of the present invention ((a) is an exploded perspective view, and (b) is an assembled perspective view).

[Fig. 4]

It is explanatory drawing which shows the method of attaching the housing to the base in the modular type controller which concerns on Embodiment 1 of this invention.

[Fig. 5]

It is sectional drawing which shows the modification of the internal structure of the housing of the modular controller by Embodiment 1 of this invention.

[Fig. 6]

It is sectional drawing which shows the other modification of the internal structure of the housing of the modular controller by Embodiment 1 of this invention.

[Fig. 7]

It is a perspective view which shows the structure of the conventional modular controller.

[Explanation of symbols]

1 base 2 housing 10 Top through hole (through hole) 11 Upper side through hole (through hole) 12 Lower side through hole (through hole) 13 Terminal block (terminal) 16 Control board (control circuit) 18 DIN rail (rail)