JPH0363238B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides control equipment such as a power supply unit, a power unit, a connector unit, a control circuit, an operation unit, and a display necessary for controlling the operation of objects such as robots, NC devices, and computer devices. This relates to a housing structure that houses parts.

Recently, there has been a demand for smaller and thinner control devices for consumer use, and power supplies are being made smaller and generate less heat, and the area occupied by printed circuit boards and the like is being made as small as possible. For this reason, there is a trend for printed circuit boards to use chip components and MELF (metal, electrode, face bonding) components (cylindrical components) for electronic components such as resistors and capacitors. Regarding consumer equipment, except for special products, the power consumption of the equipment is relatively small, and usually only a few
Since it was about 10W, there was no need to place too much emphasis on cooling issues associated with high-density packaging. Rather, it is no exaggeration to say that the feasibility of miniaturizing equipment was questioned by how small electronic components could be developed and how they could be assembled automatically.

The trend toward smaller and thinner consumer equipment is also the same for industrial control equipment, as long as there are no problems with operability or functionality, especially for NC control panels that must be installed at work sites. This requirement is even indispensable for industrial and industrial robot machines. In order to satisfy the purpose of the industrial control panel as described above and realize high-density mounting,
How can we solve the problem of heat generation, which is fatal for power panels?
In addition, we will consider how to rationalize the mounting and equipment layout with consideration to ease of assembly, and how to improve the structure and maintainability in the event that a high-density mounted control panel malfunctions on site. It is necessary to solve many problems such as: In conventional industrial control devices, there is no control device housing structure that accurately solves these problems and realizes high-density packaging.

SUMMARY OF THE INVENTION An object of the present invention is to provide a housing structure for a control device that solves the problem of heat generation caused by increased density and can be made smaller and lighter.

In order to achieve the above object, the casing structure of the control device according to the present invention is such that a heat dissipation device is installed inside the casing, and the inside of the casing is divided into two sealed chambers, and the heat dissipation devices are stacked on top of each other. , and has a circulation duct section located in one of the chambers of the casing and a circulation duct section located in the other chamber, and has a front section and a rear section corresponding to the circulation duct section of the casing. In addition to forming openings that communicate with the outside air, a fan is installed on the outside of the housing to take in outside air from one of the openings and forcibly exhaust it from the other opening through the circulation duct, thereby controlling the circulation inside the housing. It is characterized in that communication holes are provided at the front and rear of the circulation duct for circulating the air in the room where the circulation duct is located through the circulation duct.

EMBODIMENT OF THE INVENTION Hereinafter, the housing structure of the control device of this invention is demonstrated based on the drawing of an Example. FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the housing structure of a control device according to the present invention.

Reference numeral 1 denotes a frame that constitutes the skeleton of the casing. The frame structure of this casing will be described later based on FIGS. 6 and 7, but as is clear from FIG. The casing is closed by members (described later) that cover the rear surface, such as the top pulse 22, the base 31, the front door 8, the side plates 30, and the rear plate 33, and forms a box-shaped closed structure. A partition plate support frame 2 is attached across the frame 1 and tilted back and forth, and a partition plate 4 is attached to the frame 2. Therefore, this closed structure is divided into an upper chamber 25 and a lower chamber 6, each having an upper and lower closed structure. However, since the upper chamber 25 has an opening in the front door 8 and the rear plate 33 as described later, the partition plate 4 does not provide a sealed structure, but the upper chamber 25 has an opening in the front door 8 and the rear plate 33 as described later.
The board has a sealed structure.

An opening 33A is provided on the upper side of the partition plate 4 and in contact therewith, into which a heat sink 3 (described later) can be inserted in the rear plate 33, and an opening 8A is provided in the front door portion 8. Openings 33A, 8A
In the chamber on the side where the
A duct plate 5 is provided at a position where the heat radiator 3 is held between the duct plate 5 and the heat radiator 3. A duct is formed by the partition plate 4 and the duct plate 5, and an upper chamber 2 is formed at the front and rear ends of the duct plate 5.
Communication holes 5A and 5B communicating with 5 are provided.

The heat sink 3 is inserted into the partition plate 4 from the opening 33A of the rear plate 33.
, and is sandwiched between the partition plate 4 and the duct plate 5. As shown in FIG. 2, the heat dissipation body 3 consists of a large number of parts installed perpendicularly and parallel to the insertion direction at the same height on the upper and lower surfaces of a somewhat thick substrate 3A having the same length and width as the partition plate 4. It consists of heat radiation fins 3B. The heat sink 3 can be formed by extrusion molding the substrate 3A and the fins 3B integrally from aluminum or the like. The heat sink 3 is inserted through the opening 33A, and is fixed to the partition plate support frame 2 from the side with screws or the like at a position where its tip abuts the inside of the front frame 1. After inserting the heat sink 3, the opening 3
The portion of the heat sink 3 of 3A that corresponds to the upper side of the substrate 3A is closed. That is, the heat radiator 3, the partition plate 4 that sandwiches it, and the duct plate 5 constitute a heat radiator (not shown), and the heat radiator is connected to the distribution duct part 15 located on the lower chamber 6 side. , and a circulation duct portion 19 located on the upper chamber 25 side. The lower duct 15, which is the circulation duct part, is formed of the partition plate 4, the substrate 3A of the heat radiator 3, and the heat radiation fins 3B sandwiched between them, and the upper duct 19, which is the circulation duct part, It is formed of a plate 5, a substrate 3A, and a heat dissipation fin 3B sandwiched between them, and moreover, they overlap each other vertically. Also, lower duct 1
5 communicates with the outside air through the openings 8A and 33A, and the upper duct 19 does not communicate with the outside air, but through the communication holes 5A and 5.
It communicates with the upper chamber 25 through B. Openings 8A and 3
3A is designed to allow outside air to pass through the inside of the lower duct 15, and is formed at a position corresponding to the lower duct 15 on the front door portion 8 and the rear plate 33. The communication holes 5A and 5B are formed in the duct plate 5 so that the air in the upper chamber 25 can circulate inside the upper duct 19.
formed at the front and rear of the

Components are arranged in the upper chamber 25 and lower chamber 6 in consideration of isolation of heat generating parts, countermeasures against electrical noise, and operability. That is, the upper chamber 25 contains a rack unit 21 equipped with a printed circuit board for control, a sheet-like operating section 23, and a cathode ray tube display (CRT).
24 is housed or attached to the top panel 22.
These produce relatively little heat. The lower chamber 6 includes a power unit section 9 which is a highly integrated module equipped with transformers, hollow resistors, relays, fans, thyristors, power transistors, power diodes, etc., as well as transformers, choke coils, capacitors, noise filters, and circuits. Main heat-generating components are housed therein, including a power supply unit section 12 made up of electrical components such as breakers, and a connector unit section 13 that electrically connects external devices.

This housing structure is basically constructed as described above. Outside air flows through the lower duct 15 to cool the lower heat radiating fins 3B of the heat radiating body 3, thereby cooling the partition plate 4, the substrate 3A, and the upper heat radiating fins 3B. The heated air in the lower chamber 6 rises and is cooled by the partition plate 4, causing natural convection within the lower chamber 6 to cool the components within the lower chamber. Also in the upper chamber 25,
The air in the upper chamber 25 passes through the upper duct 19 to the heat sink 3.
When it comes into contact with the upper heat dissipation fin 3B, it cools down and descends, causing circulation of air within the upper chamber 25. Therefore, among the heat dissipation devices, air flows through the lower duct 15 to cool the air in the lower chamber 6, while cooling the upper duct 19, and by cooling the upper duct 19, the air in the lower chamber 6 is cooled. It also cools the air inside. However, the heat sink 3
Although it is arranged at an angle, since the heat radiator 3 is arranged at the lower side of the chamber 25, air circulation is not sufficient when a fan, which will be described later, is not provided.

In the embodiment, the partition plate 4 and the duct plate 5 are lowered in the front and inclined in the front-rear direction, and therefore the heat sink 3 is inserted at an angle, but the present invention is not limited to this. It may also be tilted in the opposite direction. However, when the duct is tilted as in the embodiment, the heat dissipation area can be increased, and air circulation in the duct can be made smoother. In addition, by raising the rear side, heated air can be discharged to the rear side, and as described later,
With this air, the heat radiation fins 18 of the power unit section 9
It is convenient for cooling.

In addition, an upper chamber 25 is provided which mainly accommodates components that generate less heat and components that generate more heat by dividing the partition plate 4 or the like.
By dividing the chamber into the lower chamber 9 and the lower chamber 9, it is possible to effectively dissipate heat, and the two are completely separated both thermally and electrically, improving noise resistance from the power supply and power circuit section. can be done.

In the embodiment shown in FIG. 1, the heat sink 3 is inserted above the partition plate 4, but it may be inserted below the partition plate 4 as in the embodiment shown in FIG. In this case, the duct plate 5 is provided on the lower chamber 6 side,
The upper duct 19 communicates with the outside air, which is the opposite of the embodiment shown in FIG. 1, but since it is likely to be easily understood from FIG. 8, a detailed explanation will be omitted.

In both the embodiments shown in FIG. 1 and FIG. 8, it is desirable that one or both of the partition plate 4 and the substrate 3A of the heat sink 3 be constructed in whole or in part by a flat heat pipe. For example, the lower chamber 6 side of the partition plate 4 in FIG. 1 is the heating side, and the lower duct 15
When a flat heat pipe is used with the cooling side as the heat pipe, much greater heat transfer can be achieved by simply using the partition plate 4.

As mentioned above, there are cases where the circulation of air in the upper and lower chambers 25 and 6 and the circulation of air in the lower duct 15 due to natural convection alone are insufficient. In the illustrated embodiment, fans 20 and 14 are provided in the divided chambers 25 and 6, respectively, and a fan 16 is provided in the lower duct 15. When the fan 14 takes in outside air from the opening 8A and forcibly exhausts it from the opening 33A via the lower duct 15, the cooling effect of the heat sink 3 becomes remarkable, and the upper chamber 2
Since the convection of air within the chamber 5 and the lower chamber 6 is promoted, the cooling effect is significant. Furthermore, although dust does not enter the sealed upper and lower chambers 25 and 6, it is possible to reliably prevent the convection of the air in the room from stopping even if the rooms are sealed. At this time, considering that the other fans 14 and 20 are for actively circulating air, both fans 14 and 2
0 does not necessarily need to be provided, and may be provided only at necessary locations depending on the situation. Also, Juan 14,
The arrangement positions of the upper and lower chambers 16 and 20 are not limited to those in the embodiment shown in FIG. 1, and the directions of air circulation within the upper and lower chambers 25 and 6 may be reversed. Furthermore, it may also be used as the flat heat pipe described above.

First, if we talk about cooling the components in the lower chamber 6 that accommodates components that generate a lot of heat, the power unit section 9 that generates the most heat has its own heat dissipation fins 1.
8, and is accommodated in the lower chamber 6 with the fins 18 exposed outside the lower chamber 6. Therefore, a portion of the heat generated by the power unit section 9 is radiated to the outside air through the fins 18. Air within the lower chamber 6 is circulated within the lower chamber 6 by a fan 14 as shown by the arrow. That is, the hot air blown out from the fan 14 hits the partition plate 4 and is cooled down, and then passes through the highly modularized power unit section 9 and connector unit section 1.
3. It passes through the power supply unit section 12 and is cooled down to a high temperature, which is sucked into the fan 14. In this way, the components within the lower chamber 6 are cooled.

Next, before explaining the cooling of components in the upper chamber 25, the shape of the upper panel 22 that covers the upper surface of the upper chamber 25 will be explained. Top panel 22
As shown in FIGS. 1 and 7, the operation section 23
It has a modified roof shape with a slight slope at the top and a slight cut off at the rear. This roof shape was designed to minimize internal wind resistance and improve the operability of the panel surface. By giving the operating section 23 a gentle slope in this manner, the air inside the CRT is smoothed, and the character display surface of the CRT is tilted forward, making it easier to see the characters and improving the operability of the panel. The top panel 22 is placed over the frame 1 from above and fixed at either the front or rear side with a hinge or the like, so that it can be opened and closed.

The fan 20 is connected to the upper duct 19 in the upper chamber 25.
It is attached upward to the communication hole 5A in the front part of.
The cooled air passing through the upper duct 19 is blown up from below toward the rack unit section 21 by a fan 20. In the rack unit section 21, control printed circuit boards are arranged parallel to the direction of the wind. The cold air blown up by the fan 20 cools these electronic components and their mounting boards, and the air that blows upward hits the slightly inclined lower surface of the operating section, rises along the inclined surface, and cools the funnel section of the CRT 24. Exit to. Since the CRT 24 has its power supply unit integrated, the heat generated cannot be ignored.
The wind that hits the CRT24 and its power supply section is the operating section 2.
It flows along the panel surface formed into a roof shape by cutting off the back side of 3, is sucked into the guide plate 26, flows into the upper duct 19 as shown by the arrow, and is cooled by the heat radiator 3.

Outside air is forced to pass through the lower duct 15 by a fan 16. Partition plate 4 and upper heat dissipation fin 3B of heat dissipation body 3, lower heat dissipation fin 3 from substrate 3A
The heat transferred to B is dissipated into the air passing through the lower duct 15. Further, a ventilation guide 17 is provided which directs the cooling air discharged from the lower duct 15 by the fan 16 toward the heat radiation fins 18 of the power unit section 9 as shown by the arrow. As a result, heat dissipation from the heat dissipation fins 18 of the power unit section 9 is accelerated.

Air containing a lot of dust from the control equipment installation site is always blowing through the heat sink 3 through the lower duct 15, so if it is used as it is for a long time, the heat sink 3B on the lower duct 15 side will A lot of dust adheres to it. In that case, not only does the resistance to the wind flow increase, but the cooling effect is also significantly reduced. Therefore, cleaning the dust at appropriate times will improve cooling efficiency and improve reliability. In conventional control devices, in such cases, the heat dissipation fins were often permanently fixed, so there was no choice but to leave them as they were.

This housing structure is designed to be able to be cleaned in advance. That is, the ventilation guide 17, the fan 16, and the upper duct 1 of the opening 33A of the rear plate 33.
By removing the plate blocking the part facing the partition plate support frame 2 and removing the screws fixing the heat sink 3 to the partition plate support frame 2, the heat sink 3 can be removed as shown by the arrow in FIG.
It is possible to pull it out to the outside. The heat sink 3 can be sufficiently cleaned by washing with water or the like. Partition plate 4
And the duct plate 5 allows the worker to directly put his/her arm inside the duct.
Alternatively, by inserting a necessary cleaning tool, it is possible to reliably wipe away the dust inside.

Next, with reference to FIG. 3, the assembly structure of the main heat generating components housed in the lower chamber 6, namely the power unit section 9, the connector unit section 13, and the power supply unit section 12, will be explained. The power unit part 9, the connector unit part 13, and the power supply unit part 12 are not individually attached to the frame 1 of the lower chamber 6, but are assembled into a three-dimensional unit group 32 shown in FIG. 3G.
It is sent into the lower chamber 6 and fixed therein.

Power unit section 9 and connector unit section 1
3 is shown in perspective view in FIGS. 3A and 3B. The power unit section 9 is a unit mounted with a modularized power control element such as a thyristor or power transistor in response to a control signal within the device, and is also a heat source that consumes a large amount of power to drive an external motor etc. . Therefore, since the heat generated in the power unit section 9 directly affects the rise in temperature inside the device, it is necessary to perform cooling with high efficiency. In particular, in devices intended for high-density mounting, the surface temperature at the power module mounting surface 27 often reaches around 100°C. Therefore, as described above, the heat dissipation fin 18 is attached to the power unit section 9, and the heat dissipation fin 18 is attached to the power unit section 9.
is housed in the lower chamber 6 while being exposed to the outside from the lower chamber 6.

The power unit section 9 includes a control printed board 28.
Or, with the module mounting surface of the power module etc. facing inside, install the power unit mounting frame 91 in Fig. 3C.
It is attached to the power unit attachment window 94 of.

The configuration of the connector unit section 13 will be described later based on FIG. 3H, but the connector unit section 13 is a contact section for transmitting and receiving signals for electrical connection with the main body of a drive unit such as a motor, and is shown in FIG. 3B. It is installed in a box-shaped case. The connector unit portion 13 is attached to the connector unit attachment window 95 of the power unit attachment frame 91 shown in FIG. 3C. A hinge 93 is attached to the side edge of the power unit attachment frame 91 on the connector unit attachment window 95 side. FIG. 3F shows a state in which the power unit section 9 and the connector unit section 13 are attached to the mounting frame 91.

Electrical components such as a transformer, a choke coil, a capacitor, and a noise filter constituting the power supply unit section 12 are illustrated in a perspective view in FIG. 3D. In order to realize high-density mounting, these electrical components must be assembled as close as possible, so the mutual spacing between the mounted components must be determined with due consideration to thermal and electrical characteristics. In this device, the power supply unit 1
2 is hinged to a power chassis bottom plate 7 of a size that overlaps the bottom plate of the lower chamber 6, and when fed into the lower chamber 6, It is attached to two upright side plates 34 that can stand upright in contact with the side plates 30 on both sides, respectively. Figure 3E shows the state in which the parts are installed. At the time of assembly, the power chassis bottom plate 7 and the upright side plate 34 are laid out on the same plane, electrical components are mounted, wiring is done between each electrical component, and the function of the power supply unit section 12 is inspected. The side plates 34 are prevented from falling by standing vertically from side to side. That is, the installation of parts is facilitated by unfolding and assembling, but once the assembly is completed and the upright side plate 34 is raised three-dimensionally, the electrical parts are intertwined with each other three-dimensionally and no longer work. It is difficult to insert one's hand into every corner inside the power supply unit section 12.

However, the structural design of this power supply unit section 12 is such that two upright side plates 34 are fastened by hinges on the left and right sides of the power chassis bottom plate 7, so it is easy to assemble and work for functional inspection. is extremely convenient. Another feature of deployment assembly and deployment connection is that the wires are bundled in advance (harness), and after the assembly of the parts is completed, the harness wire is placed from above, and the end Measures such as making a connection are taken. Therefore, after assembling the upright side plate 34 three-dimensionally, it can be virtually quickly moved into extremely narrow spaces, which is impossible with the prior art.
In addition, parts can be installed and wired neatly, and since the upright side plate 34 is raised by bending the wire 90 degrees near the hinge, the internal parts can be intersected three-dimensionally and at ideal heights. Density packaging is achieved.

Next, the power unit mounting frame 91 to which the power unit section 9 and the connector unit section 13 were previously attached is connected to the power chassis bottom plate 7 on which the power supply unit 12 is mounted by its hinge 93. And the third
As shown in Figure G, the power unit mounting frame 91 is erected upward together with the upright side plate 34, and they are fixed together with screws to prevent them from tipping over. In this way, the power chassis bottom plate 7, the upright side plates 34, and the power unit mounting frame 91 form a box-shaped power chassis without a ceiling. As shown in FIG. 3G, the three-dimensional unit group 32, which is formed by mounting heat-generating structural parts mainly including the power supply unit 12 in the power supply chassis, is controlled by riding on the slide rail 29 (see FIG. 1). Push in from the rear of the device,
It is screwed to the frame body frame 1 or the slide rail 29.

Many screws are used to attach electrical components to the power chassis bottom plate 7, and the tips of the screws are likely to protrude below the power chassis bottom plate 7, so the mounting position of the slide rail 29 is The positioning is performed so that the tip of the screw does not touch the insertion direction of the three-dimensional unit group 32.

In this way, the three-dimensional configuration unit group 3 is inserted into the device.
2 is completed, the front door 8 and side plate 30 are closed.
(See FIGS. 2 and 7) is pressed and fixed, and the power unit mounting frame 91 is fixed to the frame body 1.

Next, the configuration of the connector unit section 13 will be explained based on FIG. 3H. A receiving connector 132 is fixed to the connector case 131. As for the installation procedure, the pins of the receiving connector 132 are structurally inserted into the mother board 133, and soldering work is performed in advance. In this case, the number of receiving connectors 132 is at least one. The work of attaching a plurality of receiving connectors 132 to the motherboard 133 is generally performed using an automatic soldering bath or the like, but by using the motherboard 133, lead wires can be connected to the pins of the receiving connectors 132 that protrude in large numbers in a narrow space. The relay connector 1 uses a flat cable etc. to exchange signals with the units in the device.
34, and eliminates the troublesome work of drawing out the lead wires by wire wrapping or manual soldering as in the past. This greatly improves the reliability of connecting the lead wires to the connector pins and reduces the time required for connection. In this way, the receiving connector 132 is integrally attached to the motherboard 133 and is fastened to the connector case 131 with screws. A relay connector 135 for connecting an external device is inserted into the connector unit section 13 configured as described above.

Again, high-density mounted 3D unit group 3
Returning to the explanation in 2, the unit group 32 is heavy in weight, reaching approximately 70 kg, and once installed in the equipment, even if a failure occurs internally, it can be easily pulled out for maintenance and inspection on site. That is extremely difficult. Further, it is impossible to repair or replace the parts mounted inside the device even if the three doors are removed. In this device, Fig. 4A
As shown in FIG.
With the two side plates 30 open, by removing the screws for preventing falling of the left and right upright side plates 34 of the power chassis bottom plate 7, the device can be tipped sideways to the left and right outside of the device, as shown in FIG. 4A. can. Of course, at this time, if the upright side plate 34 is tilted to an arbitrary angle, it will be dangerous in terms of safety and maintenance work, so a support stay whose tilt angle is determined in advance is prepared.

Similarly, the power unit mounting frame 91 on the rear side of the device
can also be tilted backwards as shown in Figure 4B. Since a heavier object is mounted on the power unit mounting frame 91 than on the upright side plate 34,
Care must be taken when handling. For this reason, the thickness of the heat dissipation fins 18 exposed outside the power unit 9 is
It is designed in advance so that the height h ₁ and the height h ₂ of the base 31 are approximately the same, and when the power unit mounting frame 91 is pushed down sideways, the heat dissipation fins 18 contact the floor surface and the power unit mounting frame 91 so that the mounting frame 91 and the bottom plate of the power chassis are on the same plane is not only convenient for checking the inside of the device, but also prevents damage to the wiring between the units and allows parts to be removed easily. Replacement work also becomes extremely efficient.

Next, a method for engaging the hanging tool and a method for installing and fixing the base when transporting this device will be explained based on FIGS. 5A and 5B. A required number of screw tightening holes 314 are bored in the middle of the height of the upright surface of the frame-shaped channel base 313 constituting the base 31. A hole 315 drilled in one flange of the L-shaped fitting 312 is aligned with this screw tightening hole 314 and screwed. The distance from the position of the hole 315 to the ridge line of the flange in which the hole 315 of the L-shaped fitting 312 is bored is equal to 1/2 of the height of the channel base 313. The other flange 31 of the L-shaped fitting 312
6 is provided with a hole 317 for hooking a hanging tool 311 and for inserting an anchor bolt 318 therethrough.
Therefore, as shown in FIG. 5A, the hole 315 is inserted into the hole 31 of the channel base 313 with the flange 316 facing upward.
4 and screwed together, the hole 317 becomes a hole for hooking the hanging tool 311. By providing this engagement means at a suitable location on the channel base 313, this device can be transported.

When installing and fixing this device, attach the L-shaped fitting 316 with the flange 316 facing downward as shown in Figure 5B.
When screwed to the channel base 313, the flange 316 comes into contact with the floor surface, so the hole 317 can be effectively used as an insertion hole for the anchor bolt 318, thereby making it possible to securely fix the control device.

Next, the framework structure of this device will be explained based on FIGS. 6 and 7. 6 and 7 are exploded views of the framework structure of this device. In this embodiment, the frame-shaped frame 1 is composed of left and right side frames 101 and six stays 102 cut to the same size, as shown in FIG. Each side frame 101 and stay 102 are appropriately punched out of a plate material using an NC turret punch or the like, and holes for screw pilots are drilled.
It is bent into an L shape using a press brake or the like. Subsequently, each member is assembled into a frame as shown in FIG. 7, and the corners are fixed by spot welding or general welding. The frame-shaped frame 1 may be constructed using quadrilateral frames on the ceiling side and the base side, and a plurality of stays for columns and partition plate support frames. However, when configured as shown,
When the framework is finally completed, it is possible to punch pilot holes for the screw holes necessary to fix the side panels 30, front door 8, etc., or leave the partition plate support frame as is. This reduces the number of man-hours during final assembly and greatly improves the accuracy of the finished product.

The frame-shaped frame 1 constructed in this manner is placed on a base 31 formed by framing a channel base 313 and the like and pasting a bottom plate, and fixed with screws. After electrical components and the like are housed, the side panels 30, front door section 8, top panel 22, etc. are attached.

The frame structure of this casing is made of a combination of materials bent into an L shape using a press brake, etc., and the partition plate support frame is provided diagonally inside the quadrilateral as a punched structure integrated with the frame. Therefore, it is possible to design an earthquake-resistant structure against external mechanical shocks even with relatively thin materials.

Since the casing structure of the control device in the embodiment of the present invention is configured as described above, the problem of heat generation, which is the biggest problem when implementing high-density packaging of the control device, is skillfully solved. That is, the box-shaped closed structure forming the casing of the present invention has upper and lower chambers 2.
It is divided into 5 and 6 parts, and a heat radiating device is provided between them, so that the heat generated in each upper and lower chamber can be smoothly radiated to the outside by the heat radiator. In particular, since the main heat generating components can be housed in the lower divided chamber, heat can be efficiently dissipated by the heat radiator disposed between the upper and lower chambers. In addition, when the partition plate and/or the substrate of the heat sink are formed into flat heat pipes, heat can be dissipated even more efficiently. Furthermore, instead of relying on natural convection for the air circulation in the upper and lower chambers, the lower chambers, and the heat dissipation ducts that divide the upper and lower chambers, when installing fans, heat dissipation is carried out extremely efficiently, and the structure allows for high density electrical components. Depending on the situation, it is possible to sufficiently dissipate the generated heat in the high-density mounting structure that can be designed at present, and to fully demonstrate the functions of the control device.
It is possible to maintain its lifespan. Furthermore, by isolating the upper and lower chambers with a partition plate and a substrate of a heat sink, both chambers are completely thermally and electrically isolated, and reliability against noise and thermal influences is greatly improved.

In addition, since the heat sink can be easily attached and detached, it is easy to clean even if it gets dirty with dust, etc.
It is also easy to clean the partition plates and duct plates fixed to the device.

Furthermore, heat-generating parts such as the power supply unit, power unit, and connector unit are attached to the side and bottom plates of a box-shaped power chassis with no ceiling, and are housed in the lower chamber of the control device. Because it is developed on the same plane as the bottom plate,
The work of mounting and assembling parts is easy, and the wire rods can be bundled and connected from above, making the work of connecting the wire rods easier. In addition, it is possible to perform assembly, wiring, and functional tests on a unit-by-unit basis, improving work efficiency.

In addition, the device according to the embodiment of the present invention has a framework based on a frame, which greatly allows the application of rationalized automation equipment such as NC turret punches and NC post brakes, and enables mass production design. This improvement in workability leads to a significant reduction in price, making it possible to provide the entire device at a low cost.

Furthermore, when performing maintenance and inspection of the control equipment unit housed in the casing of the present invention, the upright side plates to which electrical components are attached and the power unit mounting frame can be unfolded, making maintenance and inspection extremely easy.

As described above, in the case structure of the control device of the present invention, by forcing outside air to flow through the circulation duct part of the heat dissipation device in which the case is divided into two chambers using a fan, the circulation duct part While cooling the air in the room on the side, it also cools the circulation duct of the heat dissipation device, and the circulation duct cools the air in the room. Can be reliably cooled. Therefore,
The necessary parts are mounted at high density and the problem of heat generation is solved, so the volume is reduced to about 1/1 compared to the conventional one.
It can be about 3. For example, conventional robot control panels are generally larger than the robot, but according to the present invention, the control panel can be made about half the size of the robot, and the weight of the device can also be reduced. As described above, the housing structure of the control device according to the present invention has great industrial utility value.

[Brief explanation of drawings]

The drawings are for explaining an embodiment of the casing structure of the control device according to the present invention, and FIG. 1 is a longitudinal sectional view of the casing;
Figure 2 is a perspective view showing how the heat radiator is inserted and removed, Figures 3A to 3G are perspective views showing the steps of attaching the main heat generating components to the box-shaped power chassis, and Figure 3H is the same as Figure 3B. A sectional view taken along the line H-H, Figures 4A and B are partial side views showing the unfolded state of the upright side plate and power unit mounting frame during maintenance and inspection, and Figures 5A and B are equipment hoisting means and installation. 6 and 7 are partially exploded perspective views for explaining the frame structure, and FIG. 8 is a longitudinal sectional view of an embodiment different from that in FIG. 1. 1... Frame-shaped frame, 3... Heat sink, 3A...
Substrate, 3B... Heat dissipation fin, 4... Partition plate, 5...
...Duct plate, 5A, 5B...Communication hole, 6...Lower chamber, 7...Power chassis bottom plate, 8...Front door section,
9...Power unit part, 12...Power unit part, 13...Connector unit part, 14, 16,
20...fan, 15...lower duct, 18...
Heat dissipation fin, 19...Upper duct, 21...Rack unit, 22...Top panel, 23...Operation unit, 24...CRT, 25...Upper chamber, 30...
Side plate, 31... Base, 32... Three-dimensional configuration unit group, 33... Rear plate, 34... Upright side plate.

Claims (1)

[Scope of Claims] 1. A housing structure for a control device that houses control equipment components, in which a heat dissipation device is installed inside the housing and the inside of the housing is divided into two sealed chambers, and the heat dissipation device comprises: It has a circulation duct part formed on top of each other and located in one of the chambers of the casing and a circulation duct part located in the other chamber, and corresponds to the circulation duct part of the casing. Openings communicating with the outside air are formed in the front and rear parts, and a ventilation fan is installed outside the housing to take in the outside air from one of the openings and forcibly exhaust it from the other opening through the distribution duct. A casing of a control device, characterized in that communication holes are provided at the front and rear of the duct for circulation inside the casing, through which air in a room where the duct for circulation is located is circulated through the duct for circulation. Body structure. 2. The casing structure of a control device according to claim 1, wherein the heat dissipation device is inclined along the front-rear direction of the casing. 3. In claim 1, the heat dissipation device includes: a partition plate installed in the front and rear of the housing, a duct plate installed in the housing with an appropriate distance from the partition plate, and a space between the duct plate and the partition plate. It consists of a substrate held between the substrates and having almost the same length and width as the partition plate, and a heat radiator equipped with heat dissipation fins arranged on both sides of the substrate, and for communication between the substrate of the heat radiator and the partition plate. A housing structure for a control device, characterized in that a duct is formed, and a circulation duct is formed between a substrate and a duct plate. 4. The casing structure of a control device according to claim 3, wherein at least one of the partition plate and the substrate is entirely or partially constituted by a heat pipe. 5. In claim 1, the main heat generating parts such as the power supply unit, the power unit, and the connector unit are housed in the lower chamber of the housing, and the control circuit, operation unit, display, etc. are housed in the upper chamber. A control device housing structure characterized by housing electronic components that generate little heat. 6 In claim 5, the heat-generating parts such as the power supply unit section, power unit section, connector unit section, etc. are attached to the bottom plate and both side plates of the bottom plate of a box-shaped power chassis without a ceiling, and the side plates are attached to the bottom plate. A casing structure for a control device, characterized in that the casing structure is hinged so as to be rotatable at a desired angle. 7. In claim 5, a heat radiation fin protruding to the outside of the housing is provided in the power unit portion, and a ventilation guide is attached to the outside of the housing for guiding and blowing air discharged by the ventilation fan to the heat radiation fin. A housing structure of a control device characterized by: