JP2002344183A - Control panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce an installation floor area without decreasing heat exchange efficiency. SOLUTION: An air intake partition 105 is demarcated in such a manner that it is projecting over a dustproof partition 103 in a lower part on the front face side of a vertical partition board 5. In side boards 2 of a case 1, side face air intake holes 2A are formed at the place corresponding to the air intake partition 105. Between the air intake partition 105 and a ventilation partition 104, outside air intake ports 5C are formed and an outside air fan 54 is disposed. The outside air taken in through the side face air intake holes 2A is introduced to a lower end of the ventilation partition 104 via the air intake partition 105 and the outside air intake ports 5C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control panel attached to a machine tool such as an electric discharge machine, and more particularly to a control panel provided with a dust-proof compartment which is hermetically sealed inside. The present invention relates to an improvement of a control panel provided with a heat exchange means for cooling the control panel.

[0002]

2. Description of the Related Art FIG. 7 is a sectional side view showing an example of a conventional control panel. A door 42 is provided on the front surface of the housing 41 of the control panel 201, and a back plate 43 is provided on the rear surface. Inside the housing 41, a vertical partition plate 44 is provided near the rear surface, and a dustproof section 103 for storing an electronic device (not shown) is defined in front of the vertical partition plate 44. A ventilation section 104 is defined between the vertical partition plate 44 and the back plate 43. The ventilation compartment 104 has a corrugated fin assembly 5 as a heat exchange means on the back of the vertical partition plate 44.
0 is attached. This corrugated fin assembly 50
Has a plurality of inside air side passages 51 and a plurality of outside air side passages 52 provided alternately between a vertical partition plate 44 and a back plate 43.

The inside air flow path 51 of the corrugated fin assembly 50
Are inside air intake ports 44 formed above and below the vertical partition plate 44.
A and the inside air discharge port 44B communicate with the dustproof section 103. The inside air intake port 44A is provided with a fan mounting base 45 so as to cover the inside air intake port 44A, and the inside air fan 53 is mounted via the fan mounting base 45. The outside air side channel 52 provided between the inside air side channel 51 is provided in the ventilation section 1.
In 04, both upper and lower sides are open. Back plate 43
A lower air intake hole 43A is formed in a lower part of the air passage so as to communicate with the outdoor air flow path 52, and an external air fan 54 is attached to an inner surface of the air intake passage 43A via a fan case 46. Ventilation section 1
A ceiling exhaust port 41 </ b> A is formed in the upper surface of 04.

In the control panel 201, the forced circulation of the inside air is performed by the operation of the inside air fan 53 as indicated by an arrow a, while the forced convection of the outside air is performed by the operation of the outside air fan 54 as indicated by an arrow b. . Thereby, heat exchange is performed via the partition between the inside air side flow path 51 and the outside air side flow path 52, and the inside of the dustproof section 103 is air-cooled. The control panel 201 described above is generally installed independently next to a machine tool (not shown). In this case, the control panel 201 is installed so that the rear surface faces the machine tool, so that the inspection and maintenance of the electronic devices housed in the dustproof compartment 103 can be easily performed.

[0005]

In the above-described conventional control panel 201, since the outside air for heat exchange is sucked from the back, if a sufficient suction space is not secured on the back side of the housing 41, the heat may be lost. Desired cooling efficiency cannot be expected from the exchange means. Also, it is necessary to secure a maintenance space for inspection and replacement of the outside air fan 54, and it cannot be installed close to the side surface of the machine tool or another control panel 201 or the like. As a result, in the control panel 201, it is necessary to secure an intake space and a maintenance space around the control panel 201, and an installation floor area is significantly increased.

[0006] The present invention has been made in view of the above,
An object of the present invention is to provide a control panel capable of reducing an installation floor area without reducing heat exchange efficiency.
Still another object of the present invention is to provide a control panel capable of easily and reliably performing inspection and maintenance of an outside air fan.

[0007]

In order to achieve the above object, a control panel according to the present invention is provided with a housing provided with a door on the front surface, and is arranged so as to partition the inside of the housing back and forth. A vertical partition plate that defines a ventilation compartment on the back side while defining a dustproof compartment on the side, and an opening that extends vertically in the ventilation compartment and has both upper and lower ends provided in the vertical partition plate. The inside air flow path that circulates the inside air of the dust-proof compartment by driving an inside-air fan provided at the opening of the vertical partition plate, and the up-and-down passage in a manner to contact the inside-air passage in the ventilation compartment. And the lower end is open to the ventilation section and the upper end is open to the outside, and the outside air is discharged from the upper end to the outside by the driving of the outside air fan. And a flow path, A control panel configured to cool the dustproof compartment by a heat exchange effect between inside air passing through the inside air passage and outside air passing through the outside air passage, and a lower front side of the vertical partition plate. While defining an intake section in a manner to protrude into the dustproof section in the portion, forming an intake hole in a portion corresponding to the intake section in the side plate of the housing,
Further, an intake port is provided between the intake section and the ventilation section, and the outside air fan is provided, and outside air sucked through the intake port is provided at a lower end portion of the ventilation section through the intake section and the intake port. It is characterized by being introduced.

According to the present invention, the outside air is introduced into the suction section from the suction hole provided in the side plate of the housing, and is discharged to the outside from the upper end through the suction port and the outside air side passage by the driving of the outside air fan. You.

[0009] In the control panel according to the next invention, in the above invention, the lower end of the ventilation section extends below the upper end of the intake section, and the outside air fan is disposed on the front surface of the vertical partition plate. In addition, an inclined partition plate is provided at the lower end of the ventilation section and gradually inclined upward toward the rear side.

According to the present invention, the outside air sucked into the intake compartment reaches the ventilation compartment from the front of the vertical partition plate, and thereafter,
The direction is smoothly changed upward through the inclined surface of the inclined partition plate.

The control panel according to the next invention is characterized in that, in the above invention, an opening for attaching and detaching an outside air fan is provided at an upper end portion of the intake compartment, and a lid is provided at the opening so as to be openable and closable. Features.

According to this invention, by opening the lid, the outside air fan can be attached and detached through the opening of the intake compartment.

In the control panel according to the next invention, in the above invention, the outside air fan is mounted inside a frame-shaped fan case having a projection at a lower end, and the projection of the fan case is moved from the intake port to the air outlet. The outside air fan is attached via the fan case by engaging with the rear side of a vertical partition plate.

According to the present invention, the outside air fan itself can be attached without screwing it.

The control panel according to the next invention is the control panel according to the above invention, wherein the fan case enables connection of a plug cord to the outside air fan only when the outside air fan is mounted in a proper orientation. It is characterized by having an insertion hole.

According to the present invention, the direction of the outside air fan with respect to the fan case can be recognized based on whether or not the plug cord is connected.

The control panel according to the next invention is the control panel according to the above invention, wherein an opening is formed in a portion of the vertical partition plate located below the inclined partition plate, and the ventilation section located below the inclined partition plate is formed in the vertical partition plate. It is characterized by communicating with the intake section.

According to the present invention, the ventilation section located below the inclined partition plate can be used as the intake section.

A control panel according to the next invention is characterized in that, in the above-mentioned invention, electric equipment having good environmental friendliness is housed inside the intake compartment.

According to the present invention, the electric equipment can be directly cooled by the outside air in the intake compartment.

A control panel according to the next invention is provided with a housing provided with a door on the front surface, and is disposed so as to partition the inside of the housing back and forth, so as to define a dustproof section on the front side and a rear side. A vertical partition plate that defines a ventilation section, and extends vertically in the ventilation section, and upper and lower ends communicate with the dustproof section via openings provided in the vertical partition plate, respectively. By driving an inside air fan provided at the opening of the plate, an inside air side flow path for circulating the inside air of the dustproof section, and a vertically extending part in the ventilation section in contact with the inside air passage, and a lower end provided in the ventilation section Opening to
And an upper end opened to the outside, and an outside air flow path that discharges outside air introduced into the lower end of the ventilation section to the outside from the upper end by driving an outside air fan, wherein the inside air passing through the inside air flow path is provided. A control panel configured to cool the dustproof compartment by a heat exchange action between the dustproof compartment and the outside air passing through the outside air flow passage, wherein the control panel protrudes into the dustproof compartment at a lower portion on the front side of the vertical partition plate. In addition to defining an intake section, an intake hole is formed in a portion of the bottom plate of the housing corresponding to the intake section, and further, an intake port is provided between the intake section and the ventilation section, so that the outside air fan is provided. The outside air sucked through the intake hole is introduced into the lower end of the ventilation section through the intake section and the intake port.

According to the present invention, the outside air is introduced into the suction section from the suction hole provided in the bottom plate of the housing, and is discharged to the outside from the upper end thereof through the suction port and the outside air side passage by the driving of the outside air fan. You.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a control panel according to the present invention will be described below in detail with reference to the accompanying drawings.

Embodiment 1 FIG. 1 is a cross-sectional side view showing a configuration example of a control panel according to Embodiment 1 of the present invention.
FIG. 3 is an enlarged cross-sectional view taken along the line SS in FIG. 1, FIG. 3 is an enlarged cross-sectional side view showing a mounting portion of the outside air fan, FIG. It is a principal part perspective view shown.

The casing 1 of the control panel 101 exemplified here is
The vehicle includes a pair of left and right side plates 2, a top plate 3 and a bottom plate 4 arranged substantially horizontally above and below the side plates 2, and a back plate 43 that covers the back surface. An opening is provided on the front surface of the housing 1,
A door 42 is provided at the opening so as to be openable and closable. Inside the housing 1, a vertical partition plate 5 is provided at a portion located near the rear surface such that four sides are in close contact with each of the side plate 2, the top plate 3, and the bottom plate 4. Dustproof compartment 103 for storing electronic equipment (not shown) between door 42
, While a ventilation section 104 is defined between the vertical partition plate 5 and the back plate 43.

On the upper rear surface of the vertical partition plate 5, a corrugated fin assembly 50 is attached as heat exchange means. The corrugated fin assembly 50 has a plurality of inside air side passages 51 and a plurality of outside air side passages 52 alternately provided between the vertical partition plate 5 and the back plate 43, similarly to the one shown in FIG. It is. The corrugated fin assembly 50 is described in, for example,
The one described in 54887 can be used. The inside air flow path 51 of the corrugated fin assembly 50 communicates with an inside air intake port 5A formed at the upper end of the vertical partition plate 5 and an inside air discharge port 5B formed at an intermediate portion. The inside air intake port 5A is provided with a fan mounting base 45 so as to cover the inside air intake port 5A, and the inside air fan 53 is mounted via the fan mounting base 45. Outside air side channel 52 provided between inside air side channel 51
Are open at the top and bottom in the ventilation section 104. On the upper surface of the ventilation section 104, a ceiling exhaust port 3A is formed.

Further, a partition plate 6 is provided inside the housing 1 on the lower front side of the vertical partition plate 5 to define an intake compartment 105 so as to protrude into the dustproof compartment 103. The partition plate 6 has both end portions in the left-right direction in close contact with the side plate 2 and the upper surface thereof is located below the inside air discharge port 5B. A plurality of side air intake holes 2A are formed in the left and right side plates 2 at positions corresponding to the air intake sections 105.

In the above-mentioned vertical partition plate 5, a portion located below the upper surface of the partition plate 6 is provided with an outside air intake port 5C and a lower opening 5E, and the outside air intake port 5C and the lower opening 5E are provided. An inclined partition plate 7 is provided on the back side located between the two. A notch 5D is formed in the lower edge of the outside air intake port 5C. This outside air intake port 5
The outside air fan 54 is attached to C from the front side of the vertical partition plate 5. The outside air fan 54 is almost exactly accommodated in the fan case 8 having a box shape. The fan case 8 has a fan air hole 8A on the surface facing the outside air fan 54.
Is provided. On the upper surface of the fan case 8, an upper end projection 8B is formed by bending from an edge. On the lower surface of the fan case 8, a lower end projection 8C is formed by bending from an edge. The upper end projection 8B has a rectangular flat shape, while the lower end projection 8C has lateral projections 8D on both sides of the bent front end.
Has a T-shape. In addition, a cord insertion hole 8E is formed on the upper surface of the fan case 8 so that a plug cord 55 for supplying power to the outside air fan 54 passes therethrough. The cord insertion hole 8E is provided at a position deviated from the center on the upper surface of the fan case 8, and the plug cord 55 can be inserted and connected only when the outside air fan 54 is attached to the fan case 8 in a regular direction. It has become.

The lower opening 5E of the vertical partition plate 5 is used to connect the intake section 105 to the back plate 43 and has a sufficiently large opening area. Inclined partition plate 7
In the figure, both ends in the left-right direction are in close contact with the side plates 2, respectively, and the ventilation section 104 is vertically divided. This inclined partition plate 7
Has a vertical portion 7A that contacts the lower portion of the outside air intake port 5C, and an inclined portion 7B that is inclined upward from the vertical portion 7A toward the back plate 43. An engagement square hole 7C is formed at the junction of the vertical portion 7A and the inclined portion 7B so as to receive the lower end projection 8C of the fan case 8 described above. Above the engagement square hole 7C, there is provided a narrow portion 7D which is narrower than the lateral projection 8D of the lower end projection 8C. As is clear from FIG. 1, the ventilation compartment 104 divided by the inclined partition plate 7
Has a configuration extending downward from the upper end of a portion of the intake compartment 105 protruding toward the dustproof compartment 103.

Inside the intake section 105, electric equipment having good environmental friendliness such as a large transformer 56 and a resistor (not shown) are mounted on the upper surface of the bottom plate 4. These transformers 56 and resistors can be taken in and out of the intake compartment 105 through the front opening 6A provided in the partition plate 6. The front opening 6A of the partition plate 6 can be opened and closed by the front lid 9. The electrical connection between the electrical equipment such as the transformer 56 and the resistor and the electronic equipment (not shown) housed inside the dustproof compartment 103 is made by the front cover 9.
This is performed by wiring through a packing 10 between the L-shaped bent portion 9A formed at the lower end of the bottom plate 4 and the bottom plate 4.

The height and width of the corrugated fin assembly 50 described above are determined according to the cooling capacity required by the control panel 101. In general, the corrugated fin assembly 50 is disposed over most of the width of the ventilation section 104. Depending on the size of the corrugated fin assembly 50, the outside air fan 5
A plurality (three in the first embodiment) 4 is also arranged in the left-right direction.

The upper surface of the partition plate 6 is located at the same height as the upper surface of the fan case 8, and has an upper surface opening 6B into which the fan case 8 can be inserted. The upper surface opening 6B is closed by the upper surface lid 11 fixed by the screw member 14. When attaching the outside air fan 54 to the outside air intake port 5C of the vertical partition plate 5, the fan case 8 including the outside air fan 54 is inserted with the upper surface opening 6B of the partition plate 6 opened. Next, the lower end projection 8C of the fan case 8 is inserted into the engagement square hole 7C of the inclined partition plate 7, positioned in the notch 5D, and hooked on the back surface of the vertical partition plate 5. At this time, the upper end projection 8B of the fan case 8 projects upward from the upper surface opening 6B. Thereafter, if the upper cover 11 is fixed in a state where the upper end projection 8B is accommodated in the notch 11A provided in the upper cover 11, the outside air fan 54 is attached to the outside air intake port 5C of the vertical partition plate 5 via the fan case 8. Will be done. After the outside air fan 54 is attached, the plug cord 55 is inserted and connected to the outside air fan 54 through the cord insertion hole 11B formed in the top cover 11 and the cord insertion hole 8E of the fan case 8.

Hereinafter, the cooling operation of the control panel 101 will be described. When the inside air fan 53 is operated, the dustproof compartment 1
03 from the inside air intake port 5A to the corrugated fin assembly 50
After being sent into the inside air side flow path 51 of the inside air, the inside air discharge port 5B
From the dustproof compartment 103. That is, the internal air circulation is forcibly performed as shown by the arrow a. On the other hand, when the outside air fan 54 is operated, outside air is sucked into the intake section 105 from the side intake hole 2A. Next, the outside air sucked into the intake section 105 flows from the outside air intake port 5C to the ventilation section 10C.
4 and is dispersed and sent into the outside air flow path 52. Further, a ceiling exhaust port 3A formed in the top plate 3
Is discharged from. That is, forced convection of the outside air is performed as shown by the arrow b. As a result, heat exchange is performed via the partition between the inside air side flow path 51 and the outside air side flow path 52, and the inside of the dustproof section 103 is cooled.

During this time, the outside air sucked from the side air intake holes 2A is supplied to the plurality of outside air fans 5 by the intake section 105.
4. Uniform suction with low pressure loss. Outside air intake 5C
Outside air discharged into the ventilation compartment 104 from the inclined partition plate 7
The direction is smoothly changed by the inclined portion 7B, and is uniformly fed into the outside air side flow path 52 with a low pressure loss. Therefore, there is no fear that the cooling efficiency in the heat exchange means is reduced. Further, unlike the electronic device, the transformer 56 and the resistor do not need to be housed in the dust-proof compartment 103 because they are electrical devices excellent in environmental protection. The intake compartment 105 can be expanded and housed therein. As a result, the electrical equipment such as the transformer 56 and the resistor can be directly cooled by the outside air, and the dustproof section 103 can be cooled.
This has the effect of reducing the amount of heat generated inside the device.

The fan case 8 including the outside air fan 54
The lower end projection 8C is inserted through the upper surface opening 6B and the outside air intake port 5 is inserted.
C can be attached by engaging the rear surface of the edge of C, holding the upper end projection 8B with the upper cover 11, and further screwing the upper cover 11. This outside air fan 54
Can be carried out from the front side with the door 42 opened. In addition, since the screw member is not used directly for fixing the outside air fan 54 and the fan case 8, the intake section 105 partitioned by the partition plate 6 is used.
It can be easily performed even inside the device. Even if the fan case 8 is inadvertently rotated forward with the top cover 11 removed, the lateral projections 8D at both ends provided on the lower end projections 8C are locked in the narrow portions 7D of the engagement square holes 7C. Thus, it is possible to prevent the vehicle from stopping at the position indicated by reference numeral 80 in FIG. 3 and dropping.

By the way, the axial flow fan applied as the inside air fan 53 or the outside air fan 54 in this type of control panel 101 has the same shape on the suction side and the shape on the discharge side. There is a risk of attachment. For this reason, a shipping test is conventionally performed to eliminate such mistakes. However,
In the control panel 101 in which the outside air fan 54 is provided in the intake section 105 as described above, the operation of confirming the wind direction in the shipping test becomes complicated. In the first embodiment, as described above, the cord insertion hole 8E of the fan case 8 is
4, the plug cord 55 cannot be inserted and connected if it is installed in the opposite direction.
Therefore, by checking the insertion state of the plug cord 55, the wind direction of the outside air fan 54 can be confirmed.

As described above, according to the control panel 101, the outside air for indirect air cooling is sucked through the side suction holes 2A provided in the side plate 2 of the housing 1.
No intake space is required on the rear side. Moreover, the side air intake holes 2A may be provided only in one of the left and right side plates 2. Further, no maintenance space is required on the rear side for inspection and replacement of the outside air fan 54. Therefore, the back plate 43 and one of the right and left side plates 2 can be installed closely to the side surface of the machine tool or another control panel, and the installation floor area and maintenance space can be reduced. .

Embodiment 2 Next, a second embodiment of the present invention will be described. FIG. 6 is a sectional side view showing a configuration example of a control panel according to Embodiment 2 of the present invention. FIG.
As is clear from FIG.
2, the intake compartment 1 is located between the partition plate 12 and the vertical partition plate 5.
05 is defined. As in the first embodiment, an outside air fan 54 is attached to the outside air intake port 5C provided in the vertical partition plate 5 from the front side. An upper opening 12 </ b> A for attaching and detaching the fan case 8 including the outside air fan 54 is provided at an upper portion of the partition plate 12. The upper opening 12A is formed over a region from the upper surface of the partition plate 12 to the upper end of the front surface in order to facilitate the attaching / detaching operation of the fan case 8 including the outside air fan 54, and has an L-shaped cross-sectional shape. Lid 1
It is closed with 3. The other configurations are the same as those in the first embodiment, and thus the same reference numerals are given and the detailed description thereof will be omitted.

In the control panel 102 of the second embodiment as well, since outside air for indirect air cooling is taken in from the side intake holes 2A provided in the side plate 2 of the housing 1, an intake space is provided on the rear side. do not need. Moreover, the side air intake holes 2A may be provided only in one of the left and right side plates 2. Further, no maintenance space is required on the rear side for inspection and replacement of the outside air fan 54. Therefore, the back plate 4
3 and one of the left and right side plates 2 are attached to the side of the machine tool,
Alternatively, it is possible to install the control panel closely to another control panel or the like, and it is possible to reduce an installation floor area and a maintenance space.

In addition, the control panel 102 of the second embodiment
According to the above, the depth of the intake section 105 is
Can be reduced until the distance between the front surface (suction surface) and the partition plate 12 becomes substantially the same as the thickness (depth) of the outside air fan 54 itself. Therefore, even when the housing 1 having the same size as that of the first embodiment is applied, a wider mounting space for the dustproof compartment 103 can be secured. Also,
Since no opening is provided on the front surface of the partition plate 12 for taking in and out electrical equipment such as a transformer and a resistor, it can be used as a space for mounting electronic equipment and the like.

In the above-described second embodiment, the vertical partition plate 5 below the inclined partition plate 7 is not provided with an opening. May be. In this case, the side plate 2
In this case, if the side air intake holes 2A are provided also in the portion on the back side of the vertical partition plate 5, the height of the air intake section 105 can be reduced without lowering the heat exchange efficiency, and the mounting space can be further increased. It becomes possible to plan. Further, while the outside air fan 54 is arranged close to the bottom plate 4, the intake holes are formed in the bottom plate 4 serving as the bottom surface of the intake section 105 or the vertical surface such as the front surface 4A of the bottom plate 4 without providing the side intake holes 2A of the side plate 2. It may be provided. Also in this case, the height of the intake section 105 can be further reduced, and the mounting space can be increased.

[0042]

As described above, according to the present invention, outside air is introduced into the suction section from the suction hole provided in the side plate of the housing, and passes through the suction port and the outside air side flow path by driving the outside air fan. Since the air is exhausted from the upper end of the lever, no air intake space is required on the rear side. Therefore, it is possible to install the back surface closely to a machine tool or another control panel while securing sufficient heat exchange efficiency by sufficiently inhaling outside air, thereby reducing the installation floor area. Can be.

According to the next invention, the outside air sucked into the intake compartment reaches the ventilation compartment from the front surface of the vertical partition plate, and thereafter is smoothly turned upward through the inclined surface of the inclined partition plate. Pressure loss is suppressed as much as possible, and there is no danger of lowering the heat exchange efficiency.

According to the next invention, since the outside air fan can be attached and detached through the opening of the intake compartment by opening the lid, no space is required around the housing for inspection and replacement of the outside air fan. Thus, it becomes possible to further reduce the installation floor area.

According to the next invention, since the outside air fan itself can be attached without being screwed, inspection and replacement of the outside air fan can be performed very easily.

According to the next invention, since the orientation of the outside air fan with respect to the fan case can be recognized based on whether or not the plug cord is connected, erroneous assembly of the outside air fan can be prevented.

According to the next invention, the ventilation section located below the inclined partition plate can be used as the intake section, so that the space of the housing can be effectively used.

According to the next invention, since the electric equipment can be directly cooled by the outside air in the intake compartment, the calorific value of the dustproof compartment can be reduced and the cooling efficiency can be improved.

According to the next invention, the outside air is introduced into the suction section from the suction hole provided in the bottom plate of the housing, and is driven outside by the outside air fan to pass through the suction port and the outside air flow path and to be discharged from the upper end to the outside. As a result, there is no need for an intake space on the side or rear side. Therefore, it is possible to install the side and back side closely to a machine tool or other control panel, etc., while ensuring the desired heat exchange efficiency by sufficiently inhaling the outside air, and reducing the installation floor area. can do.

[Brief description of the drawings]

FIG. 1 is a sectional side view showing a configuration example of a control panel according to a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along line SS in FIG.

FIG. 3 is an enlarged sectional side view showing a mounting portion of an outside air fan.

FIG. 4 is an exploded perspective view of the outside air fan.

FIG. 5 is a perspective view of a main part showing a mounting portion of an outside air fan.

FIG. 6 is a sectional side view showing a configuration example of a control panel according to a second embodiment of the present invention.

FIG. 7 is a sectional side view showing an example of a conventional control panel.

[Explanation of symbols]

1 housing, 2 side plate, 2A side air intake hole, 3 top plate, 3
A ceiling exhaust port, 4 bottom plate, 4A front surface, 5 vertical partition plate, 5A inside air intake port, 5B inside air discharge port, 5C outside air intake port, 5D notch, 5E bottom opening, 6 partition plate, 6A front opening, 6B top opening , 7 inclined partition plate, 7A vertical part, 7B inclined part, 7C engagement square hole, 7
D Narrow part, 8 fan case, 8A fan air hole, 8
B top projection, 8C bottom projection, 8D horizontal projection, 8E
Cord insertion hole, 9 front lid, 9A bent portion, 10 packing, 11 top cover, 11A notch, 11B cord insertion hole, 12 partition plate, 12A top opening, 13 lid,
14 screw member, 42 door, 43 back plate, 45 fan mount, 50 corrugated fin assembly, 51 inside air side flow path,
52 outside air side flow path, 53 inside air fan, 54 outside air fan, 55 plug cord, 56 transformer, 101, 10
2 control panel, 103 dustproof compartment, 104 ventilation compartment, 1
05 Intake section.

Claims (8)

[Claims] 1. A housing provided with a door on the front side, and disposed inside the housing so as to partition back and forth, and a dustproof section is defined on the front side and a ventilation section is defined on the back side. A vertical partition plate, which extends vertically in the ventilation compartment, and whose upper and lower ends communicate with the dust-proof compartment through openings provided in the vertical partition plate, respectively, and the inside air provided at the opening of the vertical partition plate. By driving the fan, an inside air-side flow path for circulating the inside air of the dust-proof section, and extending vertically in a manner in contact with the inside air passage in the ventilation section, and a lower end is opened to the ventilation section, and an upper end is opened. An outside air passage that opens to the outside and discharges outside air introduced into a lower end portion of the ventilation section to the outside from an upper end by driving an outside air fan, wherein the inside air and the outside air passing through the inside air passage are provided. With the outside air passing through the side passage A control panel configured to cool the dustproof compartment by a heat exchange action, wherein an intake compartment is defined in a manner projecting into the dustproof compartment below a front side of the vertical partition plate, and In the side plate, an intake hole is formed at a portion corresponding to the intake section, an intake port is further provided between the intake section and the ventilation section, the outside air fan is disposed, and the outside air sucked through the intake hole is provided. A control panel, wherein the control panel is introduced to a lower end portion of the ventilation section through an intake section and the intake port. 2. A lower end of the ventilation section extends below an upper end of the intake section, and the outside air fan is disposed on a front surface of the vertical partition plate. The control panel according to claim 1, further comprising an inclined partition plate that is gradually inclined upward toward the control panel. 3. An opening for attaching and detaching an outside air fan at an upper end of the intake section, and a lid is provided at the opening so as to be openable and closable.
Control panel described in 1. 4. The outside air fan is mounted inside a frame-shaped fan case having a projection at the lower end, and the projection of the fan case is engaged with the rear side of the vertical partition plate from the intake port. The control panel according to any one of claims 1 to 3, wherein the outside air fan is mounted via the fan case. 5. The fan case according to claim 4, wherein the fan case has a cord insertion hole that enables connection of a plug cord to the outside air fan only when the outside air fan is mounted in a proper orientation. Control panel described in 1. 6. The vertical partition plate, wherein an opening is formed in a portion located below the inclined partition plate, and a ventilation section located below the inclined partition plate is communicated with the intake section. Item 6. The control panel according to any one of Items 2 to 5. 7. The control panel according to claim 1, wherein an electric device having good environmental friendliness is housed inside the intake compartment. 8. A housing provided with a door on the front surface, and disposed so as to partition the inside of the housing back and forth, defining a dustproof compartment on the front side and defining a ventilation compartment on the back side. A vertical partition plate, which extends vertically in the ventilation compartment, and whose upper and lower ends communicate with the dust-proof compartment through openings provided in the vertical partition plate, respectively, and the inside air provided at the opening of the vertical partition plate. By driving the fan, an inside air-side flow path for circulating the inside air of the dust-proof section, and extending vertically in a manner in contact with the inside air passage in the ventilation section, and a lower end is opened to the ventilation section, and an upper end is opened. An outside air passage that opens to the outside and discharges outside air introduced into a lower end portion of the ventilation section to the outside from an upper end by driving an outside air fan, wherein the inside air and the outside air passing through the inside air passage are provided. With the outside air passing through the side passage A control panel configured to cool the dustproof compartment by a heat exchange action, wherein an intake compartment is defined in a manner projecting into the dustproof compartment below a front side of the vertical partition plate, and In the bottom plate, an intake hole is formed at a portion corresponding to the intake section, an intake port is further provided between the intake section and the ventilation section, and the outside air fan is disposed, and the outside air sucked through the intake hole is provided. A control panel, wherein the control panel is introduced to a lower end portion of the ventilation section through an intake section and the intake port.