JP3415052B2 - Modular controller - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a module type controller in which a plurality of rails are arranged adjacent to each other on a rail, and more particularly to heat dissipation measures for the module type controller.

[0002]

2. Description of the Related Art FIG. 7 is a perspective view showing the structure of a conventional module type controller. In the figure, 1 is the base,
Reference numeral 2 is a substantially rectangular parallelepiped housing in which a control board is arranged and is attached to the base 1, and 13 is a terminal block attached to the front surface of the housing 2.

Next, the operation will be described. Each module type controller is built into a control unit, etc., and when the power is turned on in that state, it acquires information from the input terminal according to the control instruction signal from the main unit, and outputs based on this information. Controls the terminals for.

[0004]

Since the conventional module type controller is constructed as described above,
The front surface is inevitably used for attaching other members, and the right side surface and the left side surface are adjacent to each other with another module type controller, and the whole of the other module type Since it is disposed in contact with the controller, there is a problem that the through holes for heat dissipation can be formed only on the remaining upper and lower side surfaces.

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 radiated, and accordingly, an appropriate gap is formed inside the housing 2. It becomes necessary to form the housing 2 a little larger so that the module type controller is downsized and multifunctional (dissipates a large amount of heat).
Was one of the factors that hindered

In particular, in a module type controller for measuring temperature and the like, the influence of the temperature change of the terminal block 13 deteriorates the measurement accuracy, so the terminal block 13
Although it is effective to provide the lower surface with the through hole, in such a case, the through hole for heat dissipation can be formed only on the upper surface. As a result, even if the through hole is formed in the upper side surface, it is assumed that the outside air may not even be introduced into the housing 2 depending on the installation condition, and this heat dissipation problem becomes a particularly serious problem.

The present invention has been made in order to solve the above problems, and through holes can be formed on a plurality of side surfaces, whereby miniaturization and multifunctionalization (discharging a large amount of heat). The purpose is to obtain a modular controller that can achieve

[0008]

A modular controller according to the present invention is a modular controller in which a plurality of modules can be arranged and mounted on a rail. And a housing whose pair of side surfaces abuts another module-type controller adjacent to the rail when it is mounted on the rail, and a housing on the housing at a position where it does not interfere with the other module-type controller when it is mounted on the rail. And a control circuit provided inside the housing and performing control via the terminal. When the housing is mounted on the rail, at least a part of the side surface is of the other module type. It is formed so as to be separated from the controller.

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

In the modular controller according to the present invention, the housing has terminals arranged on the lower side surface adjacent to the rear 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 has been formed.

In the module type controller according to the present invention, a plurality of through holes are formed in at least a plurality of side surfaces of the housing, and the plurality of through holes are divided into at least two groups based on their opening positions. The through holes of each group are obliquely formed with respect to the outer surface of the housing so that the opening direction of the through holes is biased toward the opening position of the through holes of the other groups.

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

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below. Embodiment 1. 1 is an external view showing a module-type controller according to Embodiment 1 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 base having a substantially rectangular shape, and 2 is a housing having a substantially rectangular shape fixed to the base 1.

In the base 1, 3 is formed on the back side of the base 1, and rail recesses of a size suitable for the DIN rail 18 are provided. The engaging portions 5, 5 are attached to a portion below the rail recess 3 so as to be movable in the vertical direction, and normally, the slide engaging portion 6 is positioned so that the tip end projects from the lower surface of the rail recess 3, 6 Is base 1
Of the male connector disposed on the right side surface of the base 1 at a position corresponding to the male connector 6, 7 is a male connector disposed so as to project from the left side surface of the base 1.
Is a power supply connector disposed on the upper side surface.

In the 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, and 11 is a side surface upper through hole formed on the upper right side surface and the upper left side surface, respectively. , 12 are side surface lower through holes formed in the lower part of the right side surface and the lower part of the left side surface, respectively.
Reference numeral 13 denotes a terminal block arranged on the lower side surface.

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

FIG. 2 is a sectional view showing the internal structure of the housing 2 of the module type 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 vertically opened from the upper side surface to the lower side surface, and the side surface upper through-holes 11 are respectively opened more than the outer surface side opening. The opening on the inner side is opened closer to the lower side, and the lower side through hole 1
Each of the openings 2 on the inner surface side is opened closer to the upper surface than the opening on the outer surface side. That is, the upper side through-hole 11 and the lower side through-hole 12 are formed obliquely with respect to the outer surface of the housing 2 such that the opening directions thereof are biased toward the opening position of the other through hole. .

Further, 15 is an internal bottom plate arranged so as to partition the internal space 14 from the terminal block 13, and 16 is vertically arranged in the internal space 14 of the housing 2 and a part thereof is provided. A control board, which is arranged so as to project downward from the internal bottom plate 15, is an internal connector for electrically connecting the terminals of the terminal block 13 and the control board 16, respectively.

FIG. 3 shows a control unit having a module type 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 mounting the main unit 19 on the DIN rail 18. Then, as shown in FIG. 3A, the male connector 6 of each base 1 is connected to the female connector 7 of the base 1 disposed on the left side and connected to each other to form a DIN rail. The main units 19 and the housings 2 of the modular controllers are attached to each of the arranged bases 1 one by one.

Even when the module type controllers are continuously attached, the outer shape of the right side surface and the left side surface of each module type controller is narrowed down from the substantially central portion of each module toward the front side. Therefore, the side surface upper through hole 11 and the side surface lower through hole 12 formed on the right side surface or the left side surface directly communicate the outside air with the internal space.

FIG. 4 is an explanatory view showing a method of attaching the housing 2 to the base 1 in the module type controller according to the first embodiment of the present invention. As shown in the figure, the upper part of the rear surface of the housing 2 and the upper part of the front surface of the base 1 are aligned, and then the housing 2 is pushed downward to rotate, so that each housing 2 is fixed onto the base 1.

Next, the operation will be described. As shown in FIG. 3B, each module-type controller is incorporated in the control unit, and when its power is turned on, it acquires information from the input terminal according to the control instruction signal from the main unit. The output terminal is controlled based on this information, or this information is transmitted to the main unit 19 via the male connector 6.

In the module type controller of the first embodiment, when such control is performed, the control board 1
Although the electronic components on 6 generate heat and the temperature of the internal space 14 rises due to the heat, outside air can be directly taken into the internal space by the upper surface through hole 10, the upper side surface through hole 11, and the lower side surface through hole 12. Therefore, the temperature rise can be limited within an appropriate range.

In particular, in the module type controller of the first embodiment, the side surface upper through-hole 11 and the side surface lower through-hole 12 are arranged so that their opening directions are biased toward each other toward the opening position of the other through hole. 2 Since it is opened diagonally with respect to the outer side surface, the outside air can efficiently flow smoothly through the passages between them, and the temperature rise is more effective than when the through holes are simply opened vertically. Can be limited to.

As described above, according to the first embodiment, in the modular controller in which a plurality of DIN rails 18 can be arranged and mounted,
A base 1 that is attached to and detached from the DIN rail 18; a housing 2 that is fixed to the base 1; A terminal block 13 disposed on the housing on a lower side surface that does not interfere with the other module type controller when mounted on the DIN rail 18, and a control provided via the terminal block 13 provided inside the housing 2. The housing 2 is formed in a shape such that at least part of the right side surface and the left side surface is separated from the other module type controller when mounted on the DIN rail 18. Therefore, at least a part of the right side surface and the left side surface, the other modules arranged adjacent to each other. It is possible to form a gap between the Le-type controller.

Therefore, by forming a plurality of through holes in a part of the right side surface and the left side surface thus formed and the upper side surface where the terminal block is not arranged, at least 2
Through holes can be formed on the above side surfaces, and outside air can be efficiently taken in and discharged between these through holes.
In particular, since the through holes are formed in both the right side surface and the left side surface facing the right side surface, the through holes are formed in the pair of side surfaces facing each other, and the efficiency of the outside air introduction is significantly increased, and the module There is an effect that the type controller can be further downsized and multifunctional.

According to the first embodiment, the housing 2
However, while the terminal block is arranged on the lower side surface,
A plurality of through holes 10, 11, extending from the right side surface to the left side surface,
Since 12 is formed, the through holes 10, 11 and 12 are formed on the pair of side surfaces and the other side surface, so that an efficient cooling effect can be obtained without impairing the convenience such as connection of the terminal block 13. Therefore, there is an effect that the module type controller can be further downsized and multifunctional.

Further, although the outside air warmed by the heat of the control board 16 has a characteristic of rising, the terminal block 13 is arranged on the lower side surface and separated from the internal space 14 as in the first embodiment. By disposing the terminal block 13 at a different position, the temperature rise (change) of the terminal block 13 can be suppressed, and the resistance value change of the control board 16 due to the temperature rise (change) of the terminal block 13 can be suppressed. There is an effect that the measurement accuracy and control accuracy of temperature and the like are not deteriorated.

According to the first embodiment, the housing 2
Has a plurality of through holes 10, 1 from the right side surface to the left side surface.
1 and 12 are formed, and the plurality of through holes are classified into at least two or more groups (for example, 11 and 12) based on the opening positions, and the through holes of each group have the opening direction of another group. Since the openings are formed obliquely with respect to the outer surface of the housing 2 so as to be biased in the direction of the opening position of the through hole, the flow of the outside air between different groups can be made smooth, and the module type controller There is an effect that further miniaturization and multi-functionalization can be achieved. In particular, since the above groups are classified into the upper part and the lower part of the module type controller, the outside air introduced from the through hole 12 in the lower part rises when heated by the heat of the control circuit, so that the flow of this outside air is smooth. It is possible to improve the cooling effect.

In the first embodiment, both the upper side surface through holes 11 and the lower side surface through holes 12 have the same size on the outer surface side opening and the inner surface side opening, and the opening positions thereof are the same. By shifting the vertical direction, the openings are opened diagonally with respect to the outer surface of the housing so that the opening directions are biased toward the opening position of the other through hole, and the flow of outside air between the through holes is smoothed. Has the effect of
As shown in FIGS. 5 and 6, the outer side opening and the inner side opening may be formed to have different sizes, and the center of each opening may be vertically displaced in the same manner. The effect can be obtained.

[0031]

According to the present invention, in a modular controller in which a plurality of rails can be arranged and mounted on a rail, a base that can be attached to and detached from the rail,
The housing is fixed to this base, and a pair of side surfaces of the housing are in contact with another adjacent module type controller when the rail is attached to the rail, and the housing is installed at a position where it does not interfere with the other module type controller when attached to the rail. A terminal disposed on the housing; and a control circuit provided inside the housing and performing control via the terminal. When the housing is attached to the rail, at least a part of the side surface is Since it is formed so as to be separated from other module-type controllers, it is possible to form a gap with another module-type controller that is arranged adjacent to at least a part of the side surface. Therefore, by forming a plurality of through holes in a part of the side surface thus formed and the side surface on which the terminals are not arranged, it is possible to form the through holes in at least two or more side surfaces. The outside air can be efficiently taken in and discharged during the period. In particular, when the 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 side surfaces facing each other, so that the efficiency of introducing the outside air is remarkably increased and the size of the module controller is reduced. This has the effect of further increasing the number of functions and functions.

Then, for example, the housing is formed in a substantially rectangular parallelepiped shape, and at least a part thereof is narrowed so that the width of the front surface opposite to the width of the rear surface to which the base is fixed is narrower. Such an effect can be obtained by forming it in a different shape.

According to the present invention, in the housing, the terminals are arranged on the lower side surface adjacent to the rear 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. Since a through hole is formed on the pair of side surfaces and the other side surface, an efficient cooling effect can be obtained without impairing the convenience such as connection of terminals, and the module type controller There is an effect that further miniaturization and multi-functionalization can be achieved.

Further, the outside air warmed by the heat of the control circuit has a characteristic of rising, but by arranging the terminal on the lower side surface in this way, the temperature rise (change) of the terminal can be suppressed. Therefore, there is an effect that the measurement accuracy and the control accuracy of the control circuit are not deteriorated by the resistance value change due to the temperature rise (change) of this terminal.

According to the present invention, a plurality of through holes are formed on at least a plurality of side surfaces of the housing, and the plurality of through holes are classified into at least two or more groups based on their opening positions. Since the through holes of each group are opened obliquely 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 can be smoothed. Therefore, there is an effect that the module type controller can be further downsized and multifunctional.

Particularly, by classifying the above groups into the upper part and the lower part of the module type controller, the outside air introduced from the through hole in the lower part rises when heated by the heat of the control circuit, so that the flow of the outside air is smoothed. Therefore, the cooling effect is remarkably improved.

[Brief description of drawings]

FIG. 1 is an external view showing a module-type controller according to Embodiment 1 of the present invention ((a) is a top view,
(B) is a front view, (c) is a right side view, (d) is a rear view,
(E) is a bottom view).

FIG. 2 is a cross-sectional view showing the internal structure of the housing of the modular controller according to the first embodiment of the present invention.

FIG. 3 is a control unit including the module-type controller according to the first embodiment of the present invention ((a) is an exploded perspective view, (b) is an assembled perspective view).

FIG. 4 is an explanatory diagram showing a method of attaching a housing to a base in the module type controller according to the first embodiment of the present invention.

FIG. 5 is a cross-sectional view showing a modified example of the internal structure of the housing of the modular controller according to the first embodiment of the present invention.

FIG. 6 is a sectional view showing another modified example of the internal structure of the housing of the modular controller according to the first embodiment of the present invention.

FIG. 7 is a perspective view showing a configuration of a conventional module-type controller.

[Explanation of symbols]

1 base 2 housing 10 Top surface through hole (through hole) 11 Side upper through hole (through hole) 12 Bottom side through hole (through hole) 13 terminal block (terminal) 16 Control board (control circuit) 18 DIN rail (rail)

Claims (5)

(57) [Claims] 1. A module-type controller capable of arranging and mounting a plurality of rails on a rail, and a base detachable from the rail and another module fixed to the base and adjacent to the rail when the rail is mounted on the rail. A housing in which a pair of side surfaces are in contact with the mold controller, terminals arranged on the housing at a position where they do not interfere with the other module controller when mounted on the rail, and provided inside the housing. A control circuit for controlling via the terminal, wherein the housing is formed in a shape such that at least part of the side surface is separated from the other module type controller when mounted on the rail. Modular controller characterized by. 2. The housing is formed in a substantially rectangular parallelepiped shape, and at least a part of the housing is narrowed so that a width of a front surface, which is an opposite side to the width of a rear surface to which the base is fixed, is narrower. The modular controller according to claim 1, wherein the modular controller is formed in a shape. 3. The housing has terminals arranged on a lower side surface adjacent to a rear surface to which a base is fixed, and a plurality of through holes formed in the upper side surface, the right side surface and the left side surface. The modular controller according to claim 1 or 2. 4. The housing is formed with a plurality of through holes extending 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 of the through holes. The module type according to claim 1 or 2, wherein the through hole is formed obliquely with respect to the outer surface of the housing such that the opening direction is biased toward the opening position of the through hole of another group. controller. 5. The modular controller according to claim 4, wherein the plurality of through holes are classified into at least an upper group and a lower group of the modular controller.