JP2000222007A - Modular controller - Google Patents

Abstract

(57) [Problem] In a conventional modular controller, at least the rear and front surfaces of a housing 2 are inevitably used for attaching other members, and other right and left sides are provided with other members. Since a modular controller is provided, at most the remaining upper and lower surfaces cannot be provided with heat-dissipating through-holes that communicate with the outside air. Multifunctionalization could not be achieved. SOLUTION: A right side surface and a left side surface of a housing 2 are formed to have an outer shape in which the entire portion closer to the front surface is narrowed from a substantially central portion thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a modular controller in which a plurality of controllers are arranged adjacent to each other on a rail, and more particularly to a measure for heat radiation.

[0002]

2. Description of the Related Art FIG. 7 is a perspective view showing the structure of a conventional modular controller. In the figure, 1 is a base,
Reference numeral 2 denotes a substantially rectangular housing mounted with a control board therein and attached to the base 1. Reference numeral 13 denotes 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, information from input terminals is obtained according to control instruction signals from the main unit and output based on this information Control of the terminal for

[0004]

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

Therefore, a sufficient cooling effect cannot be obtained so that the heat of the control circuit disposed inside the housing 2 can be appropriately radiated, and an appropriate gap is formed inside the housing 2. It is necessary to make the housing 2 a little larger so as to make the module type controller smaller and more multifunctional (discharge a large amount of heat).
Was one of the factors that hindered this.

In particular, in the case of a modular controller for performing temperature measurement or the like, the influence of a temperature change of the terminal block 13 deteriorates the measurement accuracy.
Is effective on the lower surface, but in such a case, it becomes impossible to form the heat dissipation through-hole only on the upper surface. As a result, even if a through hole is formed in the upper surface, it is assumed that even outside air may not be introduced into the housing 2 depending on the installation condition, and this heat dissipation problem is particularly serious.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to form through holes on a plurality of side surfaces, thereby reducing the size and increasing the number of functions (discharging a large amount of heat). It is an object of the present invention to obtain a modular controller capable of achieving the above.

[0008]

SUMMARY OF THE INVENTION A modular controller according to the present invention is a modular controller in which a plurality of the controllers can be arranged and mounted on a rail. A housing in which a pair of side surfaces abut on another module type controller adjacent to the rail when mounted on the rail, and a housing arranged on the housing at a position where the module type controller does not interfere with the other module type controller when 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 the other module type. It is formed in a shape that is 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 opposite thereto is smaller than the width of the rear surface to which the base is fixed. 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 a lower surface adjacent to the rear surface to which the base is fixed, and a plurality of through holes extending from the upper surface to the right surface and the left 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 or more groups based on the opening position. The through-holes of the groups are classified so as to be opened obliquely with respect to the outer surface of the housing so that the opening direction is deviated toward the opening position of the through-hole of another group.

In the modular 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 modular controller.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. Embodiment 1 FIG. FIG. 1 is an external view showing a modular controller according to Embodiment 1 of the present invention. In this 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 drawing, 1 is a substantially rectangular base, and 2 is a substantially rectangular housing fixed to the base 1.

In the base 1, reference numeral 3 is formed on the rear side of the base 1, and a rail recess having a size suitable for the DIN rail 18 is formed on the upper side of the rail 1 so as to project downward from the upper surface of the rail recess 3. The engagement portions 5 are vertically movably attached to portions below the rail recesses 3, and are usually slide engagement portions 6, which are positioned so that the tips protrude from the lower surface of the rail recesses 3. Is base 1
A male connector disposed on the right side of the base 1 at a position corresponding to the male connector 6;
The power supply connector is provided on the upper side of the power supply.

In the housing 2, 9 is a display portion formed on the front surface, 10 is a through hole formed on the upper surface, and 11 is a through hole formed on the right side and the left side. , 12 are side lower through holes formed at the lower part of the right side and the lower part of the left side, respectively.
Reference numeral 13 denotes a terminal block provided on the lower surface.

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 to the front portion. 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 smaller than the width of the back surface to which the base 1 is fixed.

FIG. 2 is a 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 drawing, reference numeral 14 denotes an internal space formed inside the housing 2, the upper surface through-holes 10 are respectively opened vertically from the upper side to the lower side, and the upper side through-holes 11 are respectively larger than the openings on the outer side. The opening on the inner side is located closer to the lower side, and the lower side through hole 1
The opening 2 on the inner side is closer to the upper side than the opening on the outer side. In other words, the upper side surface through-hole 11 and the lower side surface through-hole 12 are formed obliquely with respect to the outer surface of the housing 2 such that the opening directions are mutually deviated toward the opening position of the other through-hole. .

Further, reference numeral 15 denotes an internal bottom plate provided to partition between the internal space 14 and the terminal block 13, and 16 denotes a vertical part disposed inside the internal space 14 of the housing 2 and a part thereof. Control boards 17 protruding below the inner bottom plate 15 are internal connectors for electrically connecting the terminals of the terminal block 13 and the control board 16 respectively.

FIG. 3 shows a control unit having a modular controller according to Embodiment 1 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. 2A, 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 unit 19 and the housing 2 of the modular controller are attached to the bases 1 arranged one by one.

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

FIG. 4 is an explanatory view 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, the housing 2 is fixed on the base 1 by aligning the upper rear surface of the housing 2 with the upper front surface of the base 1 and then pushing the housing 2 so as to rotate from below.

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

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

In particular, in the modular controller of the first embodiment, the upper side through-hole 11 and the lower side through-hole 12 are arranged so that the opening directions of the side upper and lower through holes 12 are mutually deviated toward the opening position of the other through hole. (2) Opened obliquely with respect to the outer side surface, the outside air flows smoothly and smoothly between them, and the temperature rise is more effective than when a through-hole is simply opened vertically. Can be restricted to

As described above, according to the first embodiment, there is provided a modular controller which can be mounted on the DIN rail 18 by arranging a plurality of them.
A base 1 detachably attached to the DIN rail 18, a housing 2 fixed to the base 1, and having a right side surface and a left side surface in contact with another adjacent module-type controller when attached to the DIN rail 18; A terminal block 13 disposed on the housing on the lower side 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 such a shape that at least a part of the right side surface and the left side surface are separated from the other module type controller when the housing 2 is mounted on the DIN rail 18. Therefore, at least a part of the right side surface and the left side surface are 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 on which the terminal block is not provided, at least two holes are formed.
Through holes can be formed in the above-mentioned side surfaces, and outside air can be efficiently taken in and discharged between these.
In particular, since the through holes are formed on both the right side and the left side opposed thereto, through holes are formed on the pair of opposed side surfaces, and the efficiency of the outside air introduction is significantly increased, and the module is improved. There is an effect that the mold controller can be further reduced in size and multifunction.

According to the first embodiment, the housing 2
However, while the terminal block is arranged on the lower side,
A plurality of through holes 10, 11,
Since the through holes 12 are formed, the through holes 10, 11, and 12 are formed on the pair of side surfaces and the other side surface, and an efficient cooling effect can be obtained without impairing the convenience of connection of the terminal block 13 and the like. Thus, there is an effect that the size and the function of the modular controller can be further reduced.

Although the outside air heated by the heat of the control board 16 has a characteristic of rising, the terminal block 13 is disposed on the lower surface and separated from the internal space 14 as in the first embodiment. The temperature rise (change) of the terminal block 13 can be suppressed by arranging the terminal block 13 at the position where the terminal board 13 is located. 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 to the left side.
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 position, and the through-holes of each group have the opening direction of another group. Is formed obliquely with respect to the outer surface of the housing 2 so as to be deviated in the direction of the opening position of the through hole, so that the flow of outside air between different groups can be made smooth, and the modular controller can be further improved. There is an effect that size reduction and multifunctionalization can be further achieved. In particular, since the above group is classified into an upper part and a lower part of the modular controller, the outside air introduced from the lower through-hole 12 rises when heated by the heat of the control circuit, so that the flow of the outside air is smooth. And the cooling effect is significantly improved.

In the first embodiment, both the upper side surface through-hole 11 and the lower side surface through-hole 12 have the same size of the opening on the outer surface side and the opening on the inner surface side. By displacing them vertically, they 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 smooth. Has the effect of
As shown in FIGS. 5 and 6, the opening on the outer surface side and the opening on the inner surface side are formed to have different sizes, and the center of each opening is similarly shifted in the vertical direction. The effect can be obtained.

[0031]

According to the present invention, there is provided a modular controller capable of arranging a plurality of rails on a rail and mounting the base on the rail.
A housing fixed to the base and having a pair of side surfaces in contact with another module-type controller adjacent to the rail when mounted on the rail; and a housing that does not interfere with the other module-type controller when mounted on the rail. A terminal provided on the housing, and a control circuit provided inside the housing and controlling the terminal via the terminal, wherein when the housing is mounted on the rail, at least a part of the side surface is Since it is formed in such a shape as to be separated from other modular controllers, it is possible to form a gap between at least a part of the side surface and another modular controller arranged adjacently. Therefore, by forming a plurality of through holes on a part of the side surface formed as described above and the side surface on which the terminal is not provided, it is possible to form a through hole on at least two or more side surfaces. The outside air can be efficiently taken in and discharged between the two. In particular, when the through holes are formed on both the side surface and the side surface opposite to the side surface, the through holes are formed on the pair of opposed side surfaces. This has the effect of further achieving multi-functionalization and multi-functionality.

For example, the housing is formed in a substantially rectangular parallelepiped shape, and at least a part of the housing is narrowed down so that the width of the front surface opposite thereto is smaller than the width of the back surface to which the base is fixed. Such an effect can be obtained by forming it in a bent shape.

According to the present invention, the housing has terminals arranged on the lower surface adjacent to the rear surface to which the base is fixed, and has a plurality of through holes formed on the upper surface, the right side surface and the left side surface. Therefore, a through hole is 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 connection of terminals, and further improvement of the module type controller. There is an effect that size reduction and multifunctionalization can be further achieved.

The outside air heated by the heat of the control circuit has a characteristic of rising. By arranging the terminals on the lower 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 the control accuracy of the control circuit are not deteriorated by the change in the resistance value due to the temperature rise (change) of the terminal.

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 classified into at least two or more groups based on their opening positions. 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 hole of the other group, so that the flow of outside air between different groups is smooth. Therefore, there is an effect that the module type controller can be further downsized and multi-functionalized.

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 lower through-hole rises when heated by the heat of the control circuit, so that the flow of the outside air is smoothed. , And the cooling effect is significantly improved.

[Brief description of the drawings]

FIG. 1 is an external view showing a modular 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 sectional view showing an internal structure of a housing of the modular controller according to the first embodiment of the present invention.

FIG. 3 is 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 is an explanatory diagram showing a method of attaching a housing to a base in the modular controller according to the first embodiment of the present invention.

FIG. 5 is a sectional view showing a modification of the internal structure of the housing of the modular controller according to Embodiment 1 of the present invention.

FIG. 6 is a sectional view showing another modification of the internal structure of the housing of the modular controller according to Embodiment 1 of the present invention.

FIG. 7 is a perspective view showing a configuration of a conventional modular controller.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 2 Housing 10 Upper surface 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)

Claims (5)

[Claims] 1. A module-type controller which can be mounted on a rail by arranging a plurality of the modules, a base detachable from the rail, and another module fixed to the base and adjacent to the rail when the module is mounted on the rail. A housing in which the mold controller and a pair of side surfaces are in contact with each other; a terminal arranged on the housing at a position not interfering with the other modular controller when attached to the rail; and a terminal provided inside the housing. A control circuit for performing control via the terminal, wherein the housing is formed in such a shape that at least a part of the side surface is separated from the other module type controller when attached to the rail. A modular controller characterized by: 2. The housing is formed in a substantially rectangular parallelepiped shape, and is at least partially narrowed so that a width of a front surface on the opposite side is smaller than a width of a back surface to which the base is fixed. The modular controller according to claim 1, wherein the controller is formed in a shape. 3. The housing is characterized in that terminals are provided on a lower surface adjacent to a back surface to which the base is fixed, and a plurality of through holes are formed on the upper surface, the right side, and the left side. The modular controller according to claim 1 or 2, wherein 4. 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 classified into at least two or more groups on the basis of their opening positions. The module type according to claim 1 or 2, wherein the through holes are formed obliquely with respect to the outer surface of the housing so that the opening direction is deviated 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.