KR20110103311A - Control apparatus - Google Patents

Abstract

[assignment]
Provided is a control device capable of producing a plurality of things of different types at a low cost.
[Workaround]
The control device 11 includes a rear case 23 having a space provided on an inner side thereof, a front case including a display portion 15 that is thin in shape and disposed in front of the rear case 23 and displays control information. And a terminal block 24 disposed on the rear side of the rear case 23 and including a plurality of connection terminals for connecting with an external device. The rear case 23 can be attached to the front case 22 by rotating it 90 degrees with respect to the front case 22 with the rotating shaft 44 as the rotation center. In addition, the terminal block 24 can be attached to the rear case 23 by rotating it 90 degrees with respect to the front case 22 with the rotating shaft 44 as the rotation center.

Description

Control device {CONTROL APPARATUS}

TECHNICAL FIELD This invention relates to a control apparatus. Specifically, It is related with the control apparatus used as a temperature control apparatus, a timer, and a counter.

Techniques related to a general control device typified by a temperature control device and the like are disclosed in Japanese Patent Laid-Open No. 2002-329980 (Patent Document 1) and Japanese Patent Laid-Open No. 10-163641 (Patent Document 2).

According to Patent Literature 1, in the terminal cover structure of the panel attachment device, the external dimensions of the terminal cover are equal to or smaller than the external dimensions of the device body corresponding to the panel cut, thereby making it easy to attach the panel attachment device to the control panel. I'm letting you. Moreover, according to patent document 2, the terminal block attachment structure of a control apparatus provides a terminal block mounting part in the component mounting side of a 1st case, mounts the terminal block which has a terminal leg in a terminal block mounting part, and a 1st case. The board unit is mounted on the open side of the board, and the board unit is connected to the terminal legs of the terminal block. By doing in this way, the generation | occurrence | production of the crack in the soldering part of a terminal block is prevented, and the cost of components is aimed at.

[Prior Art Literature]

[Patent Documents]

Patent Document 1: Japanese Patent Application Laid-Open No. 2002-329980

Patent Document 2: Japanese Patent Application Laid-Open No. 10-163641

As for the conventional control device represented by Patent Document 1 or the like, for example, various control devices are used depending on the use or specification. Specifically, according to the use of a temperature control device as a control device, a timer, a counter, or the like, one having a different arrangement of a plurality of connection terminals or the like, and one having a different shape of the opening provided on the side of the case are used. Here, when manufacturing a control apparatus in various ways according to a use, individual mold design etc. are needed, and manufacturing cost becomes very high.

An object of the present invention is to provide a control device which can produce a plurality of things of different types at low cost.

The control device according to the present invention has a roughly rectangular pillar shape whose outer shape extends in the front-rear direction, a rear case having a space on the inner side, a circuit board accommodated in a space on the inner side of the rear case, and a rough rectangular shape. It has a thin plate shape and is provided with a terminal case including a front case disposed on the front side of the rear case and including a display unit for displaying control information, and a plurality of connection terminals disposed on the rear side of the rear case and connected to an external device. do. The rear case and the terminal block have a directionality that can be rotated about an imaginary rotation axis extending in the front-back direction with the intersection of each diagonal on the plane of the front case as the axial center. Here, the rear case can be attached to the front case by rotating the virtual rotation axis at a predetermined angle with respect to the front case. In addition, the terminal block can be attached to the rear case by rotating a predetermined angle with respect to the front case as the rotation center as the rotation center.

The control apparatus of such a structure can attach a rear case which has the directionality of rotation with respect to a front case, to a predetermined angle by rotating to the front case. Moreover, the terminal block which has the directionality of rotation with respect to a front case can be attached to a rear case by rotating a predetermined angle. Then, in response to the request, the rear case and the terminal block can be rotated to attach each member to manufacture a plurality of different kinds of control devices. In other words, it is not necessary to separately manufacture various control devices according to the use. Therefore, a plurality of things of different kinds can be manufactured at low cost.

In addition, the said predetermined angle is 90 degrees together. By configuring in this way, the rear case and terminal block from which a shape differs in the vertical and horizontal direction can be attached suitably, for example.

More preferably, in the case of viewing from the front-rear direction, the external shapes of the rear case and the terminal block are roughly square. By doing in this way, a rear case and a terminal block can be rotated and attached more reliably.

More preferably, the circuit board can be attached to the front case by rotating the predetermined angle about the virtual rotation axis with respect to the front case. By doing so, a plurality of different kinds of control devices can be manufactured.

Here, the front case and the rear case may be configured such that engagement portions for rotating and attaching the rear case with respect to the front case are provided. The rear case and the terminal block may be configured such that engagement portions for rotating and attaching the terminal block with respect to the rear case are provided respectively.

More preferably, the opening is provided in the 1st surface which comprises a rear case, and the 2nd surface which adjoins a 1st surface, and the area of the opening of a 1st surface is a thing of the opening of a 2nd surface. It is larger than the area. The control apparatus of such a structure can arrange | position the surface with a large opening area in the direction where better air permeability is calculated | required. Then, the control apparatus which responded to the request more can be manufactured.

As a further preferred embodiment, the configuration of the terminal block is any one of a card edge type, a solder fixing type, and a pin type.

According to such a control apparatus, the rear case which has the directionality which can be rotated about the virtual rotation axis extended in the front-back direction by making the intersection of each diagonal on the surface of the front case into the axial center can be attached to a front case by rotating at a predetermined angle. . In addition, the terminal block having the directionality of rotation with respect to the front case can be attached to the rear case by rotating the terminal block at a predetermined angle. Then, in response to the request, the rear case and the terminal block can be rotated to attach each member to manufacture a plurality of different kinds of control devices. In other words, it is not necessary to separately manufacture various control devices according to the use. Therefore, a plurality of things of different kinds can be manufactured at low cost.

1 is a block diagram showing a schematic configuration of a control device according to an embodiment of the present invention.
Fig. 2 is an exploded perspective view showing an exploded view of a control device according to an embodiment of the present invention, wherein the terminal block is a card edge type.
FIG. 3 is a perspective view of a rear case provided in the control device shown in FIG. 2. FIG.
4 is a side view of a rear case provided in the control device shown in FIG. 2.
FIG. 5 is a perspective view showing a state in which the control device shown in FIG. 2 is assembled. FIG.
FIG. 6 is a perspective view when the angle between the terminal block and the rear case is rotated 90 degrees in the control device shown in FIG. 5; FIG.
7 is a perspective view of a control device according to another embodiment of the present invention, wherein the terminal block is of a solder fixing type.
FIG. 8 is a perspective view when the angle between the terminal block and the rear case is rotated 90 degrees in the control device shown in FIG. 7. FIG.
Fig. 9 is a perspective view of a control device according to still another embodiment of the present invention, wherein the terminal block is of a pin type.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described with reference to drawings. 1 is a block diagram showing a schematic configuration of a control device 11 according to an embodiment of the present invention.

Referring to FIG. 1, the control apparatus 11 which concerns on one Embodiment of this invention is used, for example when performing temperature control in the temperature control object 12, such as a mechanical apparatus. That is, the control apparatus 11 is used as a temperature control apparatus in this case. An example of the temperature control in the control device 11 will be briefly described. First, the thermocouple 13 is attached to the temperature control object 12. The mounted thermocouple 13 detects the temperature of the temperature control object 12. And temperature compensation is performed based on the temperature of a connection terminal using the thermosensitive element, circuit board, etc. which are mentioned later. Finally, display of temperature data after temperature compensation is performed.

In addition, the control apparatus 11 uses the PID (ProportionaL IntegraL Differential) control, for example, to turn on the power supply to the heater 14 provided in the vicinity of the temperature control object 12 based on the measured temperature. It may be provided with a temperature control mechanism for performing the control, the off, etc. to adjust the temperature control object 12 within the set temperature range.

The control device 11 includes an operation unit 16 including a display unit 15 displaying a measured temperature, a push button for inputting a set temperature, a measurement condition, and the like, and a circuit board 17 performing temperature compensation. And a connection terminal 19 connected to a power supply 18 for supplying electricity to the circuit board 17, a thermocouple 13 for detecting the temperature of the temperature control object 12 through a conductor (not shown), A terminal bracket 20 serving as a contact portion for bringing the connection terminal 19 and the circuit board 17 into contact with each other, and a temperature sensing element 21 for detecting the temperature of the connection terminal 19 are provided. In addition, in embodiment shown below FIG. 2 mentioned later, two circuit boards 17 are provided. The plurality of connection terminals 19 are also provided, and a plurality of terminal fittings 20 are also provided depending on the number of the connection terminals 19.

Next, the specific structure of the control apparatus 11 which concerns on one Embodiment of this invention is demonstrated. FIG. 2 is an exploded perspective view showing an exploded view of the control device 11 according to one embodiment of the present invention. 3 is an external perspective view of the rear case included in the control device 11 shown in FIG. 2. FIG. 4 is a side view of the rear case included in the control device 11 shown in FIG. 2, and is viewed from the direction of arrow IV in FIG. 3. FIG. 5: is a perspective view which shows the state which assembled the control apparatus 11 shown in FIG. In addition, from the viewpoint of ease of understanding, the left side of the sheet in FIG. 2 is in the front side, and the right side of the sheet is in the rear side. That is, the direction shown by the arrow A1 in FIGS. 2-5 becomes a front side. The direction indicated by the arrow A1 or the opposite direction is the front-rear direction. In addition, the direction shown by the arrow A2 in FIGS. 2-5 or the opposite direction is made into the up-down direction, and the direction shown by the arrow A3 in FIGS. 2, 3, and 5, or the opposite direction is shown Turn left and right. And the upper side of the paper surface in FIG. 2 is made upward, and the right side of the paper surface is made right in FIG.

1 to 5, the control device 11 according to one embodiment of the present invention has a schematic rectangular pillar shape. In this embodiment, it is a shape extended in the front-back direction. The control device 11 includes a front case 22, a circuit board 17a, 17b, 31, a rear case 23 that accommodates the circuit boards 17a, 17b, 31, and a plurality of connection terminals 19. ) And a terminal block 24 to which the plurality of terminal fittings 20 are attached. In addition, illustration of the connection terminal 19 and the terminal bracket 20 is abbreviate | omitted in FIG.

The front case 22 is thin plate shape. In addition, when seen from the front-back direction, the external shape of the front case 22 is a rough square shape. The display part 15 is arrange | positioned in the area | region above the surface 25 used as the front side of the front case 22, and the operation part (in the area | region below the surface 25 used as the front side of the front case 22). 16) is arranged. In the display unit 15, control information such as measured temperature is displayed on a digital display. The operation unit 16 is provided with a plurality of push buttons for inputting information such as setting values to be adjusted.

The two circuit boards 17a and 17b are arranged in parallel along the front-back direction, and are accommodated in the inner side of the rear case 23. The circuit boards 17a and 17b are spaced apart from each other, and are attached to the circuit board 31. The circuit board 31 has a thin plate shape and is disposed in parallel with the front case 22. The circuit board 17a is fixed by attaching the side portion located at the front side to the back surface 32 of the circuit board 31. The circuit board 17b is similarly fixed to the circuit board 31. In addition, when it sees from the front-back direction, the external shape of the circuit board 31 is also a substantially square shape.

Each of the circuit boards 17a and 17b is of a card edge type and is formed of gold at the contact portion 33 with the terminal fittings 20 arranged in the outward region on the rear side of each of the circuit boards 17a and 17b. Plating is carried out. At the time of assembling the control device 11, the contact portion 33 subjected to the gold plating contacts the terminal bracket 20 attached to the terminal block 24.

The rear case 23 is a rough rectangular column shape whose outer shape extends in the front-back direction. In addition, the rear case 23 is a structure in which the space is provided in the inward side. Specifically, the rear case 23 is the shape which bonded the edge | side of four sheet members, respectively, and is cylindrical shape. That is, the rear case 23 has openings in the front-back direction, respectively. The circuit boards 17a, 17b, and 31 are housed in a cylindrical inner space.

In addition, when seen from the front-back direction, the external shape of the rear case 23 is a substantially square shape. In this embodiment, the length dimension L1 of the left-right direction of the rear case 23 shown in FIG. 3, and the length dimension L2 of the up-down direction of the rear case 23 shown in FIG. 3 are comprised similarly. It is.

The rear case 23 is provided with a plurality of vent holes 37 penetrating from the outer side to the inner side on the four surfaces 36a, 36b, 36c, and 36d constituting the outer shape, respectively. Although the opening shape of the ventilation hole 37 is various, many are rectangular shape and are provided so that it may extend in a left-right direction or an up-down direction. The plurality of vent holes 37 provided in the rear case 23 allow the control device 11 to release heat generated from the circuit boards 17a, 17b and the like to the outside, while maintaining the air permeability in the control device 11. It is improving.

Here, in the four surfaces 36a to 36d, the plurality of vent holes 37 provided in the respective surfaces 36a to 36d are configured to be different from each other. Specifically, for example, in FIG. 3, as for the surfaces 36a and 36c serving as the first surfaces located in the up and down direction, a relatively large number of vent holes 37 is formed. Regarding the surfaces 36b and 36d positioned in the direction and adjacent to the first surface, the number of the ventilation holes 37 is relatively small. In the rear case 23 of such a structure, the air permeability in an up-down direction is better than the air permeability in a left-right direction.

In addition, through surfaces 36a to 36d, through holes 38 other than the ventilation holes 37 are also provided. Such a through hole 38 is provided for improvement of visibility for visually recognizing a part of the circuit boards 17a and 17b from the outside. The shape of the through hole 38 provided in each of the surfaces 36a to 36d is also different. That is, in the surfaces 36a to 36d, the shapes formed by the vent holes 37 and the through holes 38 differ greatly.

In addition, the area of the area | region except the opening part in the surface 36b, 36d is larger than the area of the area | region except the opening part in the surface 36a, 36c. In the rear case 23 of such a structure, since the surface 36b, 36d arrange | positioned in the left-right direction becomes larger than the surface 36a, 36c arrange | positioned in the up-down direction, the rear case 23 To display the characteristics and the like, the surfaces 36b and 36d disposed in the left and right directions can be effectively utilized. In particular, the marking according to the IEC (International Electrotechnical Commission) standard requires a certain area. Therefore, for example, relatively large areas 39a and 39b in which the opening portions shown by the dotted lines in FIG. 3 are avoided can be effectively utilized, for example, for attaching the display chamber.

In addition, the rear case 23 can be attached by fitting the front case 22 and the rear case 23 using elastic deformation of the front part.

In addition, the rear case 23 is provided with four rear engagement holes 42 as engagement portions for attaching the terminal block 24. The rear engagement hole 42 is provided so as to be located at the center of each side portion that constitutes the rear opening in the rear case 23 among the surfaces 36a to 36d. That is, the rear case 23 is provided with four rear engagement holes 42 in total.

Concerning the terminal block 24, the structure which can arrange | position and arrange | position the some terminal 19 and the some terminal bracket 20 which connects the some connection terminal 19 and a part of circuit board 17a, 17b to an up-down direction is arranged. to be. The connecting terminals 19 and the terminal fittings 20 are arranged so that they may be arranged in five rows in the vertical direction and are arranged in two rows in the left and right directions.

In addition, when seen from the front-back direction, the external shape of the terminal block 24 is a rough square shape. In this embodiment, the length dimension L3 of the left-right direction of the terminal block 24 shown in FIG. 2, and the length dimension L4 of the up-down direction of the terminal block 24 shown in FIG. 2 are comprised equally. . In addition, length dimension L3, L4 is comprised slightly shorter than length dimension L1, L2.

The terminal block 24 is provided with a rear engagement pawl 43 for engaging when attached to the rear case 23. The rear engagement pawl 43 has a shape which protrudes to the rear side from the up-down center region of the side positioned in the left-right direction among the terminal blocks 24 and also protrudes outward. That is, the two terminal engagement poles 43 are provided in the terminal block 24 at a position facing 180 degrees in total. The rear case 23 and the terminal block 24 are fitted by engaging the rear engaging hole 42 and the rear engaging pawl 43 by using the elastic deformation of the rear engaging pawl 43 provided in the terminal block 24. Can be attached.

Here, the rear case 23 is a front-rear direction with respect to the front case 22 at the intersection of each diagonal on the surface of the front case 22 as shown by the dashed-dotted line in FIG. It is the structure which can be attached to the front case 22 by rotating 90 degree | times, using the virtual rotary shaft 44 extended as the rotation center. Moreover, the terminal block 24 is a structure which can be attached to the rear case 23 by rotating 90 degrees with the virtual rotation shaft 44 extended in the front-back direction with respect to the front case 22 as a rotation center. The rotating shaft 44 is an imaginary axis passing through the center of the face 25 of the front case 22.

By such a configuration, a plurality of different types of control devices 11 can be manufactured by rotating the rear case 23 and the terminal block 24 so as to attach each member in response to a request. That is, it is not necessary to separately manufacture the various various control devices 11 according to a use. Therefore, a plurality of things of different kinds can be manufactured at low cost.

This will be described in detail below. That is, when using the control apparatus 11 as a temperature control apparatus, as for the terminal block 24, as shown in FIG. 2, rather than having 5 connection terminals arranged in the left-right direction and 2 rows in the up-down direction. It is more preferable to arrange five in the vertical direction and two rows in the left-right direction. For example, a thermocouple is connected to the lowest connection terminal arranged on the right side, and the temperature of the connection terminal is detected by the temperature sensing element provided in the circuit board 17a arrange | positioned at the right side. The power supply is provided on the circuit board 17b disposed on the left side. Moreover, in the rear case 23, the surface 36a, 36c in which the number of the ventilation holes 37 is provided in large numbers is arrange | positioned in the up-down direction, and the surface 36b, 36d is arrange | positioned in the left-right direction, and it is breathable in an up-down direction Can be made favorable. By doing in this way, the heat from the power supply which is easy to convey upward can be discharged | emitted to the exterior of the control apparatus 11 efficiently. In this configuration, when the temperature of the connection terminal is detected by the temperature sensing element, the power supply and the temperature sensing element can be separated as far as possible, and the influence of heat from the power source which is likely to be transmitted upward to the temperature sensing element can be avoided. This can be reduced.

On the other hand, in the case of using the control device 11 as a counter, there is no need for a temperature sensing element, and as for the terminal block 24, five connection terminals are provided in the left and right directions, up and down, with respect to the arrangement of the connection terminals connected to the external device. It is often preferable to have two rows arranged in the direction. Moreover, it is preferable that the surface 36b or the surface 36d is arrange | positioned upward from a viewpoint of the visibility improvement etc. of the display by said IEC. Thus, even when using as a counter, the control device of the structure shown in FIG. 6 can be manufactured easily by rotating and attaching the rear case 23 and the terminal block 24 with respect to the front case 22 by 90 degrees. Can be. That is, the control device of the structure shown in FIG. 5 and the control device of the structure shown in FIG. 6 can be manufactured using the same member.

In this case, the circuit board can also be attached to the front case 22 by being rotated by a predetermined angle about the front axis 22 about the rotary shaft 44 extending in the front-rear direction. The control device can be manufactured.

In addition, although the structure of the terminal block 24 was made into the card edge type in the above-mentioned embodiment, it is not limited to this, It can also apply also that it is a solder fixation type or a pin type. That is, the terminal block may be configured to be any one of a card edge type, a solder fixing type, and a pin type.

7 and 8 are perspective views of a control device according to another embodiment of the present invention, wherein the terminal block is of a solder fixing type. FIG. 7: is a perspective view which shows an example of the control apparatus 45 at the time of attaching the rear case 46 which has the directionality of rotation, and the terminal block 47 of the solder fixing type. FIG. 8: is a perspective view at the time of rotating the angle of the terminal block 47 and the rear case 46 by 90 degree in the control apparatus 45 shown in FIG. 9 is a perspective view of a control device 48 according to still another embodiment of the present invention, wherein the terminal block 49 is of a pin type. The same applies to this type of terminal block.

In the above-described embodiment, a plurality of rear cases having different lengths in the front-rear direction are prepared for the rear case, a rear case having a suitable length is selected as necessary, and the control device is used using this. You may make it. By doing in this way, more than one kind of control apparatus can be manufactured in response to a request | requirement. In addition, a plurality of modifications of the shape and size of the holes, the number of holes, the arrangement of the plurality of holes, and the like may be prepared, and a control device may be manufactured by adopting an appropriate rear case shape according to the use.

In addition, in the above-described embodiment, the configuration can be rotated by 90 degrees. However, the configuration is not limited to 90 degrees. For example, the configuration can be rotated by 180 degrees and can be attached. Also good.

In addition, in the above embodiment, the circuit board is also configured to be attached by rotating the circuit board by a predetermined angle. However, the circuit board and the front case may be fixed without being limited thereto.

In addition, in the above embodiment, the engaging portions provided in the front case, the rear case, and the terminal block may be configured so as to be able to engage with each other, and may be configured to provide the engaging poles and the engaging holes in reverse. That is, the engagement pawl may be provided on the rear case side, and the engagement hole may be provided on the front case or the terminal block side. In addition, although it is supposed to provide in the center of a side part, it is not limited to this, If it is a structure which can be rotated and attached, you may provide it in the position which shifted to one corner.

As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to what was shown embodiment. In the illustrated embodiment, various modifications and variations can be made within the same range as the present invention or within an equivalent range.

[Industrial Availability]

The control device according to the present invention is effectively used when the use and the use are multifactorial.

11, 45, 48: control unit
12: temperature control object
13: thermocouple
14: heater
15: display unit
16: control panel
17, 17a, 17b, 31: circuit board
18: power
19: connection terminal
20: terminal bracket
21: temperature sensing element
22: front case
23, 46: rear case
24, 47, 49: terminal block
25, 32, 36a, 36b, 36c, 36d: cotton
33: contact
37: vent hole
38: through hole
39a, 39b: area
42: rear engagement hole
43: posterior engagement pole
44: rotation axis

Claims (8)

The rear case which is roughly rectangular pillar shape which the external shape extends in the front-back direction, and the space is provided in an inner side,
A circuit board accommodated in an inner space of the rear case;
A front case having a thin rectangular plate shape and arranged on the front side of the rear case and including a display unit for displaying control information;
A terminal block disposed on the rear side of the rear case and including a plurality of connection terminals for connecting with an external device;
The rear case and the terminal block have a directionality rotatable about an imaginary rotation axis extending in the front and rear direction, with the intersection of each diagonal on the plane of the front case as the axis center,
The rear case can be attached to the front case by rotating the virtual rotation axis at a predetermined angle with respect to the front case,
And the terminal block can be attached to the rear case by rotating the virtual rotary shaft at a predetermined angle with respect to the front case. The method of claim 1,
And said predetermined angle together is 90 degrees. 3. The method according to claim 1 or 2,
In the case seen from the front-back direction, the outer shape of the said rear case and the said terminal block together is a roughly square shape, The control apparatus characterized by the above-mentioned. The method of claim 1,
The circuit board can be attached to the front case by rotating the predetermined angle about the virtual rotation axis with respect to the front case. The method of claim 1,
The front device and the rear case are each provided with engaging portions for rotating and attaching the rear case with respect to the front case. The method of claim 1,
The said rear case and the said terminal block are each provided with the engaging part which rotates and attaches the said terminal block with respect to the said rear case, The control apparatus characterized by the above-mentioned. The method of claim 1,
The opening is provided in the 1st surface which comprises the said rear case, and the 2nd surface adjacent to the said 1st surface,
The area of the opening of the first surface is larger than the area of the opening of the second surface. The method of claim 1,
The terminal block has a configuration of any one of a card edge type, a solder fixing type, and a pin type.

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