JP3355398B2 - Control box body case structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a case structure of a control box used for a machine tool or the like.

[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.
After designing the case according to the specifications each time, the ceiling case, side plate, back plate and bottom plate formed into a flat plate are manufactured by welding the body case designed according to the specifications, and then the inside of the body case is manufactured. Wiring works.

[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, both side plates, ceiling plate and the like of the main body case are formed of flat plates, the temperature due to the heat generated by the power supply unit is easily trapped, and it is indispensable to install a cooler or a fan. However, installing a cooler or a fan not only increases the cost, but also requires a large body case 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 the assembly, the working environment is deteriorated. In addition, a lot of wiring work time was spent, and wiring errors were likely to occur.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and has been made so as to facilitate ventilation of a ceiling plate and a side plate so that a heated room temperature can be easily circulated and cooled. For this purpose, we provide a control box that does not require a cooler or fan, and also provide a control box body case that allows easy assembly of the body case and arbitrarily sets the size of the body case. The purpose is to do.

[0006]

The main case structure of the control box according to the present invention is configured as follows in order to solve the above-mentioned problems. That is, the bottom wall
A main body case structure including a main body case having a ceiling wall, a rear wall, and a side wall, and electrical components housed inside the main body case, wherein the main body case structure of the control box includes the ceiling wall and the side wall. Having a plurality of convex fin members each having a passage therein and being formed in a substantially U-shaped cross section so as to close three surfaces, wherein each convex fin member of the ceiling wall and each convex fin member of the side wall are provided. While being arranged in the orthogonal direction,
One end face of each convex fin member of the ceiling wall and a corner member having an end face capable of contacting one end face of each convex fin member of the side wall are provided, and each of the corner members is
Each of the corner members and each of the convex fin members of the ceiling wall and each of the convex members of the corner member and the side wall are formed having a communication passage connecting the passages of the respective convex fin members of the ceiling wall and the side wall. The fin members are connected by connecting members.

Preferably, the connecting member has a U-shaped cross section, and is disposed so that the convex fin member on the ceiling wall and the convex fin member on the side wall are fitted from the outside. Anything should do.

[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 ceiling wall 3 and both side walls 5.5 of the main body case 1
Is a temperature converter 1 formed in a convex shape as shown in FIG.
1 and a single fin member 10 having a collar portion 12 (a large collar portion 12a and a small collar portion 12b) integrally connected to the temperature conversion portion 11.
The fins 9 are formed by engaging the flanges 12 with each other.

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

Further, a large brim portion 12a and a small brim portion 12b
Is slightly folded back at its tip so as to be parallel to both side surfaces of the temperature conversion section 11 to form the recesses 13a, 13a.
b. The recess 13a of one of the large flanges 12a of the flanges 12 folded back on both sides is used to receive the small flange 12b of another fin member 10.
b, the side surface of the temperature converter 11 connected to the large flange 12a is longer than the side of the temperature converter 11 connected to the small collar 12b by the plate thickness. Is formed. Therefore, the adjacent fin members 10
Is engaged by the large brim portion 12a and the small brim portion 12b, the back surface of the bent surface of the large brim portion 12a (the inner side surface of the case when assembled) forms substantially the same plane. The fins 9 are formed by continuously joining the fin members 10, the fins 9 are arranged on the ceiling wall 3 as a whole, the fins 9 are arranged on the upper side, and the fins 9 are arranged on the lower side. The flat part is arranged and formed. Accordingly, the fin portions 9 of the ceiling wall 3 and the side wall 5 formed by joining the single fin members 10 are formed continuously with the cross section of the fin portions 9 alternately. The ceiling wall 3 and the side wall 5 to which the single fin member 10 is joined can be assembled very easily, and the size can be arbitrarily formed. Note that the side plates 5 may be formed so as to be entirely disposed by the fin portions 9.

Each fin member 10 of the ceiling wall 3 and each fin member 10 of the side wall 5 are connected by connecting a corner member 16 with a connecting member 20 as shown in FIG. As shown in FIG. 4, the corner member 16 is formed on the orthogonal ceiling wall 3 and the side wall 5 so as to face the respective fin members 10 so as to have a substantially L-shape with equal sides in front view. In the same manner as described above, the fin member 10 is formed to have the same size as the fin member 10 having the temperature conversion portion 17, the flange portions 18 a and 18 b arranged on both sides of the temperature conversion portion 17, and the connection passage 19 in the temperature conversion portion 17. Is formed.
Then, the corner members 16 are continuously joined to form the fin portions 15 (see FIG. 1). And
Both end surfaces of the corner member 16 are in contact with the end surface of the fin member 10 of the ceiling wall 3 and the end surface of the fin member 10 of the side wall 5, respectively.

The connecting member 20 has a U-shaped cross section as shown in FIG. 5. As shown in FIG. 6, the opening is directed toward the fin member 10 (downward in FIG. 6), and the corner member 16 and the ceiling are connected. The fin members 10 and the corner members 16 of the wall 3 and the connecting portions between the fin members 10 of the side wall 5 are formed so as to be fitted from the outer surface sides of the respective temperature conversion parts 11 and 17, and in FIG. A position where a pin hole 20a for inserting the caulking pin 21 into the upper surface is opposed to the pin hole 16a formed on both ends of the corner member 16 and the pin hole 10a formed on the end portion of the fin member 10. Are formed in two places. Therefore, the corner member 16 and the fin member 10 of the ceiling wall 3 and the corner member 16 and the side wall 5
Is connected to the fin member 10 by a caulking pin 21.

If the corner member 16 has the connecting passage 19 and is connected to the fin members 10 on the ceiling wall 3 and the side wall 5 as described above, the fin members 10 on the ceiling wall 3 and the side wall 5 can be connected. Since a ventilation path connected to the ventilation path 14 is formed, the circulated and warmed air passes smoothly between the ceiling wall 3, the corner member 16, and the side wall 5.

As shown in FIG. 7, the side wall 5 and the rear wall 4
It is attached to columns 25 standing upright at four corners of the main body case 1. The column 25 has a U-shaped cross section so as to open inside in the front-rear direction. The side wall 5 is attached to the outer surface of the column 25, and one or more flat plates are arranged on the rear surface of the column 25. The rear wall 4 formed and installed is attached. A slide plate support member (hereinafter, referred to as a support member) 26 made of equilateral angle iron is disposed on the inner surface of the support 25 so as to bridge the support 25 forward and backward. The support member 26 is symmetrically attached to the left and right side walls 5, 5 and the slide plate 2 on which the electric component M is mounted.
7 (see FIG. 1) is supported by the support member 26 so as to be movable in the front-rear direction.

The slide plates 27 are vertically arranged in a plurality of stages (five stages in FIG. 1) depending on the specifications of the control box B to be manufactured. Therefore, the support members 26 are mounted on the columns 25 in five stages. A slide device (not shown) for sliding with respect to the support member 26 is mounted on the slide plate 27, and when the slide plate 27 reaches the frontmost position so that the slide plate 27 does not fall forward. A lock device (not shown) is provided between the support device 26 and the support member 26.

As shown in FIG. 1, the front door 6 has a frame plate 7 attached to the front of the column 2 erected on both sides of the front of the main body case 1 so as to surround the four edges of the front. It is attached to one side so that it can be opened and closed via a hinge. The front door 6 can be used to check the electric components M inside the control box B,
A transparent material such as glass or transparent resin may be mounted.

In the control box B configured as described above, each electric component M mounted on the slide plate 27 is provided.
Are juxtaposed. The various electric components M are mainly divided into an operation unit, a power supply unit, and a control unit, and are arranged on the respective slide plates 27. In particular, the power supply unit is disposed on the upper slide plate 27 to generate heat, so that the temperature increased by the heat generation does not affect other components.

The air warmed by the heat generated from the power supply unit rises toward the ceiling wall 3, circulates and flows into each ventilation path 14 of the fin unit 9 of the ceiling wall 3, and is formed on the fin unit 9. The fin member 10 is circulated to the side walls 5.5 through the ventilation path 14 of each fin member 10 and the ventilation path 17 of the corner member 16. Further, the air heated by the heat generated from each electric component M is also supplied to the control box B.
The air passage 1 of the fin portion 9 of the ceiling wall 3 which is circulated and raised
4 and circulates through the ventilation path 17 of the corner portion 16 to the side walls 5.5.
Flowed into 0. The warmed air that has flowed into the respective ventilation passages 14 of the fin members 10 on the ceiling wall 3 or both side walls 5 has the external air (heated) that has flowed around the outer surface of the temperature conversion unit 11 of the fin members 10. Heat is exchanged by the air having a temperature lower than the temperature in the control box, and is cooled. Then, the cooled air is circulated again in the control box B. Therefore, the temperature in the control box B does not rise, and the electric components do not malfunction.
Therefore, it is possible to remove a cooler, a fan, and the like, which are conventionally mounted, from the inside of the control box B.

The fin member forming the ceiling wall and the side wall is not limited to the shape shown in FIG. 2 as long as it forms a ventilation path. It can also be formed in a round or round shape. In addition, the fin member may not be disposed on the entire surface of the ceiling wall, but may be formed only partially.

Further, the connecting member 20 and the corner member 16
The fastening with the fin member 10 is not performed by the caulking pin 21, but may be performed by providing a round projection on one member and a hole engaging with the round projection on the other member, and fastening.
Further, the connecting member 20 may be firmly fitted from the outside together with the corner member 16 and the fin member 10.

[0023]

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. Wherein the ceiling wall and the side wall each have a plurality of convex fin members formed in a substantially U-shaped cross section so as to cover three surfaces with passages therein,
Each convex fin member of the ceiling wall and each convex fin member of the side wall are arranged in a direction orthogonal to each other, and one end face of each convex fin member of the ceiling wall and each convex fin of the side wall. A corner member having an end surface capable of contacting one end surface of the member is provided, and each of the corner members has a communication passage connecting a passage of each of the convex fin members on the ceiling wall and the side wall. The corner members and the convex fin members of the ceiling wall, and the corner members and the convex fin members of the side wall are connected by connecting members. The air heated by the heat generated from the electric components circulates in the control box, flows into the ceiling wall and both side walls through the corner members, and is cooled by heat exchange by the external air flowing into the outer surface. Circulates again in the control box. In this manner, the heated air in the control box is circulated well through the corner member and the ceiling wall and the side wall, and is cooled by heat exchange with the outside temperature. Therefore, the electric components do not malfunction without increasing the room temperature. Therefore, it is possible to eliminate a cooler, a fan, and the like which are conventionally installed, and it is possible to easily connect the ceiling wall and the side wall with the corner member.

[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 front view showing an assembled state of a corner member and a ceiling wall / side wall.

FIG. 4 shows a corner member.

FIG. 5 is a perspective view showing a connecting member.

FIG. 6 is a cross-sectional view showing a state where the connecting member is mounted on the corner member and the fin member.

FIG. 7 is a partial cross-sectional plan view showing an inner mounting state of the rear wall and the side wall.

[Explanation of symbols]

 B ... Control box M ... Electrical component 1 ... Main body case 2 ... Bottom wall 3 ... Ceiling wall 4 ... Rear wall 5 ... Side wall 6 ... Front door 9 ... Fin part 10 ... Fin member 11 ... Temperature conversion part 12a ... Large brim part 12b ... Small brim portion 14 ... Ventilation passage 15 ... Fin portion 16 ... Corner member 17 ... Temperature conversion portion 18a ... Large brim portion 18b ... Small brim portion 19 ... Connecting passage 20 ... Connecting member 21 ... Crimping pin

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-51-1934 (JP, A) JP-A 61-129404 (JP, U) JP-A 62-178711 (JP, U) JP-A 60-178711 69507 (JP, U) Japanese Utility Model Showa 51-146942 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H02B 1 / 30,1 / 56 H05K 7/20

Claims (2)

(57) [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. The ceiling wall and the side wall each include a plurality of convex fin members each having a passage therein and formed in a substantially U-shaped cross section so as to cover three surfaces, and each of the convex fin members and the side wall of the ceiling wall. Each of the convex fin members is disposed in a direction orthogonal to the other, and one end surface of each of the convex fin members of the ceiling wall and one of the end surfaces of each of the convex fin members of the side wall are brought into contact with each other. A corner member is provided, and each of the corner members is formed having a communication passage connecting a passage of each of the convex fin members of the ceiling wall and the side wall, and each of the corner members and the ceiling wall is formed. Convex fin member and the corner Each convex fin member of the the member side wall,
A main case structure of the control box, wherein the main case is connected by connecting members. 2. The connecting member has a U-shaped cross section.
The main case structure of the control box according to claim 1, wherein the convex fin member of the ceiling wall and the convex fin member of the side wall are arranged so as to be fitted from the outside.