JP2000151157A - Main body case structure of control box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a main body case structure of a control box which does not raise temperatures in the interior of a room without mounting a cooler or a fan. SOLUTION: A rear wall 4 and a side wall 5 structuring a main body case 1 of a control box B are structured by coupling a single fin member 10. The fin member 10 is formed having a temperature change wall part formed so as to clog three faces containing an air flow passage inside, and a large collar part and a small collar part for engaging adjacent fin members 10. Furthermore, an air flow hole 33 is formed in response to a recess part formed outside the collar part of the fin member 10 in a ceiling wall 3, and an outer air is circulated between the air flow hole 33 and the recess part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control box used for a machine tool and the like, and more particularly to an improvement of a main body case structure constituting the control box.

[0002]

2. Description of the Related Art Conventionally, a control box for operating a machine tool has been increased in size to perform a complicated operation of the machine tool. In particular, the electrical components wired inside the box are attached to panels vertically arranged on the back plate side of the box and panels arranged vertically on the back side of the door, and the operation unit, power supply unit, control unit respectively And was wired.
The size of these control boxes is determined according to the specifications of the machine tool, so they are dedicated.The case is designed each time according to the specifications, and the main body case designed according to the specifications is used. After manufacturing the ceiling plate, the side plate, the back plate, and the bottom plate integrally formed by welding, the wiring work is performed in the main body case.

[0003]

However, in general, various electric parts are mounted on the control box. In particular, the temperature generated from the power supply unit in which the motor is disposed increases the temperature inside the control box. High temperatures can lead to malfunctions of electrical components located in the control,
A cooler, a fan, and the like are attached to the control box, and the temperature in the control box is set to an appropriate temperature. In particular, in the conventional control box, since the back plate and both side plates of the main body case are formed of flat plates, the air heated by the heat generated by the power supply unit is easily trapped, and the installation of a cooler and a fan is indispensable. However, installing a cooler or a fan not only increases the cost but also requires a large body case itself to take up space in the control box.

Further, in the conventional control box, once the main body case is manufactured, it cannot be modified or changed, so that it is not possible to flexibly cope with it. In addition, since the wiring work is performed in the main body case after assembling, the working environment is deteriorated. In addition, a lot of time was spent on wiring work, and wiring errors were likely to occur.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and is configured to be able to circulate and cool a heated room temperature without installing a cooler or a fan. It is an object of the present invention to provide a control box main body case that can be easily operated.

[0006]

The main case structure of the control box according to the present invention is configured as follows to solve the above-mentioned problems. That is, the bottom wall
A control box main body structure including: a main body case including a ceiling wall, a rear wall, and a side wall; and an electric component housed in the main body case, wherein the main case includes any of the rear wall and the side wall. Or, a ceiling wall formed so as to have a fin portion in which a rear wall and a side wall are alternately formed in a plane cross section, and cover the upper surfaces of the rear wall and the side walls,
A vent hole is formed at a position corresponding to an upper extension line of the recess outside the wall of the fin portion.

Preferably, the fin portion has a ventilation path therein and is formed so as to cover three surfaces, and the fin portion is formed integrally with the temperature conversion wall portion and is formed of the temperature conversion wall portion. A flange formed by being bent outward from both end edges, and having the bent end edges folded back on both side surfaces of the temperature conversion wall to form a concave portion. A single fin member may be configured to be continuously engaged.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, a control box B of the present embodiment has a main body case 1 having a bottom wall 2, a ceiling wall 3, a rear wall 4, and both side walls 5.5, and a front and rear side of the main body case 1. It is configured to include a front door 6 that can be disposed and various electric components M that are housed in the main body case 1.

The rear wall 4 and both side walls 5 of the main body case 1 are each formed with a fin portion 9 having an uneven upper section, and the fin portion 9 is, as shown in FIG.
The single fin member 10 formed with the flange portion 12 (the large collar portion 12a and the small collar portion 12b) is formed by engaging the collar portions of the adjacent single fin members 10 with each other. ing.

The fin member 10 will be described in more detail. The fin member 10 is formed of aluminum or an aluminum alloy or the like, has a ventilation passage 14 therein, and is formed in a U-shape so as to cover three surfaces. And a large brim portion 12a and a small brim portion 12b formed integrally with the temperature conversion wall portion 11 and formed by bending outward from both end edges of the temperature conversion wall portion 11, respectively. I have.

Further, the ends of the large brim portion 12a and the small brim portion 12b are slightly bent at their leading ends so as to be parallel to both side surfaces of the temperature conversion wall portion 11 to form the concave portions 13a, 13b.
Is formed. The recess 13a of one large flange portion 12a of the flange portions folded back on both sides is provided with another fin member 10a.
In order to receive the small brim portion 12b, the width of the concave portion 13b of the small brim portion 12b is about twice as large as the thickness of the concave portion 13b, and the side surface of the temperature conversion wall portion 11 connected to the large brim portion 12 is It is formed longer by the plate thickness than the side surface of the temperature conversion wall portion 11 connected to 12b.

Accordingly, when the adjacent fin members 10 are engaged with the respective large brim portions 12a and small brim portions 12b, the back surface of the bent surface of the large brim portion 12a (the inner surface of the case when assembled) is substantially flush. Will be formed. Then, the fin members 9 of the rear wall 4 and the side walls 5.5 are formed by continuously connecting the fin members 10. For this reason, the fin portions 9 of the rear wall 4 and the side walls 5 formed by connecting the single fin members 10 are formed so that their cross sections are alternately formed in an alternating manner. Then, the fin portions 9 of the rear wall 4 and the side walls 5 and 5 where the single fin members 10 are joined together can be assembled very easily, and the size thereof can be arbitrarily formed.

The rear wall 4 and the side wall 5 in the present embodiment are
The main body case 1 is formed of a fin portion 9 arranged from the center in the vertical direction upward and a single flat plate formed from the center of the main body case 1 downward. The lower end surfaces of the ventilation paths 14 of the fin portions 9 of the rear wall 4 and the side wall 5 are closed with blind plugs so that oil mist from the outside does not enter.

The rear wall 4 and the side wall 5 are, as shown in FIG.
Each end is attached to a supporting column 15 that stands upright at four corners of the main body case 1. The column 15 has a U-shaped cross section so as to open inside in the front-rear direction. The rear wall 4 and the side wall 5 are attached to the outer surface of the column 15. A slide plate support member (hereinafter, referred to as a support member) 16 is disposed on the inner side surface of the column 15 so as to bridge the column 15 in the front-rear direction. The support members 16 are symmetrically attached to the left and right side walls 5.5 of the main body case 1,
The slide plate 17 (see FIG. 1) on which the electric component M is mounted is supported by the support member 16 so as to be movable in the front-rear direction.

As shown in FIG. 4, the ceiling wall 3, which is arranged so as to cover the upper surfaces of the rear wall 4 and the side walls 5, 5, has an upper surface portion 31.
And side surface portion 32 formed so as to surround around upper surface portion 31
And is formed in a box shape having an opening at the bottom. A plurality of ventilation holes 33 are formed in the upper surface 31 at edges corresponding to the rear wall 4 and the side walls 5. As shown in FIGS. 5 and 6, the ventilation holes 33 are provided on the side wall 3 of the ceiling wall 3.
When the ceiling wall 3 is assembled so as to fit from the outside of the rear wall 4 and the side walls 5, the respective fin members 1
It is formed so as to be arranged on an extension of the zero concave portion 13b. Therefore, when the air in the control box B circulates through the ventilation paths 14 of the respective fin members 10, the outside air always circulates between the ventilation holes 33 of the ceiling wall 3 and the recesses 13 b of the fin members 10. The temperature conversion between the inside and the outside of the control box B is performed.

The vent hole 33 may be formed in a long hole shape as shown in FIG. 5, or may be formed in a single round or rectangular shape. Further, as shown in FIG. A plurality of small holes 34 may be formed in the longitudinal direction of the recess 13b (13a) as described above, and a plurality of slit holes 35 are formed in the short direction of the recess 13b (13a) as shown in FIG. May be formed. In any case, the present invention is not limited to the above as long as it is formed so that ventilation can be performed between the recess 13b (13a) of the fin member 10.

As shown in FIG. 1, the front door 6 is formed on one side of a frame plate 7 attached to the front surface of a column 15 erected on both sides of the front portion of the main body case 1 so as to surround the four edges of the front surface. It is attached to the side part so that it can be opened and closed via a hinge. The front door 6 may be provided with a transparent window such as glass or transparent resin so that the electric component M inside the control box B can be checked.

The slide plate 17 movably mounted in the control box B has a plurality of stages (five stages in FIG. 1) depending on the specifications of the control box B to be manufactured.
The support member 16 is mounted on the column 15 in five steps. A slide device (not shown) for sliding with respect to the support member 16 is mounted on the slide plate 17, and a stopper member (not shown) is arranged on the slide plate 17 so that the slide plate 17 does not fall forward. A lock device (not shown) is provided to prevent the slide plate 17 from moving forward when the slide plate 17 is stored at the rearmost position.

In the control box B constructed as described above, each electric component M mounted on the slide plate 17 is provided.
Are juxtaposed. Various electric parts M are mainly
The power supply unit and the control unit are divided and arranged on each slide plate 17.

In particular, the power supply unit is disposed on a slide plate 17 mounted at an upper position to generate heat,
The temperature raised by the heat generation is not provided to other parts.

The air warmed by the heat generated from the power supply circulates in the control box B and the rear wall 4
-It flows into each ventilation path 14 of the fin part 9 of both side walls 5.5. On the other hand, the outer surface of each of the fin portions 9 constituting the rear wall 4 and the both side walls 5.5, that is, the recess 13b (or
Since a) communicates with the ventilation hole 33 of the ceiling wall 3, outside air flows from the recess 13 b (13 a) of the fin portion 9 through the ventilation hole 33.
Alternatively, it is always circulated from the ventilation hole 33 to the concave portion 13b (or 13a) of the fin portion 9. Since the air passage 14 in the control box B and the concave portion 13b (13a) of the fin portion 9 are separated by the temperature conversion wall 11, the warmed air in the control box B is supplied to the outside air by the temperature conversion wall 11. This means that heat is always exchanged with the cold temperature of the sample, and the sample is cooled.

As described above, since the fin portions 9 are formed on the rear wall 4 and the side walls 5.5, the warmed air in the control box B is cooled by the respective fin members 10 from three directions. Since the inside of the control box B is recirculated, the entire control box B can be cooled. Therefore, it is possible to eliminate a malfunction due to a rise in the temperature of the electric component, and it is not necessary to install a cooler or a fan.

The fin member 10 forming the rear wall 4 and the side wall 5 is not limited to the shape shown in FIG. It can also be formed in a round shape or a round shape. Further, the fin portions 9 forming the rear wall 4 and the side wall 5 are not disposed on the upper side as shown in FIG. 1, but extend to a lower portion of the rear wall 4 or the side wall 5 and are disposed on the entire surface. It does not matter.

The control box B is a main body case 1 in which a fin portion 9 is not disposed on the rear wall 4 but is formed as a simple flat wall, and the fin portions 9 are disposed only on both side walls 5.5. You may.

[0026]

According to the present invention, the main case structure of the control box includes a main case having a bottom wall, a ceiling wall, a rear wall, and a side wall, and electric components housed inside the main case. It is composed. And it is formed so that either the rear wall or the side wall, or a fin portion in which the plane cross section of the rear wall and the side wall are alternately formed with irregularities, covers the upper surfaces of the rear wall and the side walls. The ceiling wall has a ventilation hole at a position corresponding to an upper extension line of the recess outside the wall of the fin portion. Since outside air is always circulated between the ventilation hole and the concave portion of the fin portion, warm air circulating in the control box and flowing to the fin portion is cooled by exchanging heat with the outside air. Therefore, the warmed air in the control box that has been heat-exchanged at the fins is cooled and circulated in the room, eliminating malfunctions of the electrical components due to heat.Therefore, there is no need to install a cooler or fan, and the entire box can be cooled. It can be formed compact.

Further, in the body case structure of the control box, the fin portion has a ventilation passage therein and is formed so as to cover three surfaces, and the fin portion is formed integrally with the temperature conversion wall portion. A flange portion formed by bending outward from both end edges of the temperature conversion wall portion, and the bent edge portions being folded back on both side surfaces of the temperature conversion wall portion to form a concave portion; A single fin member formed with
It is configured to engage continuously. The temperature conversion wall exchanges heat between the circulated air of the control box and the outside air, and the air heated by the electric components can be cooled by the cool air of the outside air. Further, since the rear wall and the side wall can be formed only by engaging the brim portions of the adjacent fin members, it is possible to easily assemble the main body case and to form the main body case to an arbitrary size.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a control box using a main body case of the present invention.

FIG. 2 is a front view showing a single fin member.

FIG. 3 is a partial sectional view showing a partial internal structure of a main body case.

FIG. 4 is a perspective view showing a ceiling wall.

FIG. 5 is an enlarged plan view showing a ventilation hole in a ceiling wall.

FIG. 6 is a partial cross-sectional view showing an attachment state of a ceiling wall, a rear wall, and a side wall.

FIG. 7 is an enlarged plan view showing another form of the ventilation hole in the ceiling wall.

[Explanation of symbols]

 B ... Control box M ... Electrical component 1 ... Main body box 2 ... Bottom wall 3 ... Ceiling wall 4 ... Rear wall 5 ... Side wall 6 ... Front door 9 ... Fin section 10 ... Fin member 11 ... Temperature conversion wall section 12a ... Large brim section 12b ... small brim section 13a ... concave section 13b ... concave section 14 ... ventilation path 15 ... column 16 ... support member 17 ... slide plate 33 ... ventilation hole

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kazuyoshi Kato 6-10 Ushimaki-cho, Mizuho-ku, Nagoya-shi, Aichi F-term (reference) in Sanmei Electric Co., Ltd. 3C048 AA05 EE02 4E360 AB02 AB23 AB24 AB25 BA15 BB02 BB12 BB16 BB23 EA05 EC11 EC13 GA07 GA24 GA53 GB92

Claims (2)

[Claims] 1. A control box main body structure comprising: a main body case having a bottom wall, a ceiling wall, a rear wall, and a side wall; and electric components housed inside the main body case. A ceiling formed to have a fin portion in which one of the rear wall and the side wall, or the rear wall and the side wall has a plane cross-section alternately formed, and covers the upper surfaces of the rear wall and the side walls; The main case structure of the control box, wherein the wall has a ventilation hole at a position corresponding to an upper extension line of the outer wall concave portion of the fin portion. 2. The temperature conversion wall portion, wherein the fin portion has an air passage therein and is formed so as to cover three surfaces, and both end edges of the temperature conversion wall portion formed integrally with the temperature conversion wall portion. A flange formed to be bent outward from the respective portions, and bent edges are folded back to both side surfaces of the temperature conversion wall to form a concave portion. The main case structure of the control box according to claim 1, wherein one fin member is continuously engaged.