KR101089092B1 - Frame for Control Cabinet - Google Patents

Abstract

The present invention relates to a frame for a control cabinet and a coupling structure thereof. In particular, the assembly of the corner portion is easy and the strength is excellent, and the frame for the electric and electronic control cabinet to improve the waterproofness as well as to maintain a solid mounting state of the packing And a coupling structure thereof.

To this end, in the present invention, in the frame for the control cabinet each formed with a contact protrusion for closely contacting the panel in a direction perpendicular to each other on the cross-section, the first coupling groove and the second coupling groove respectively on both sides of the contact protrusions virtual center The first coupling groove is formed to be symmetrical to each other with respect to the axis, wherein the first coupling groove is inclined at least 90 degrees with respect to the end surface of the adhesion projection, and the end surface of the adhesion projection at the end of the first bending surface. Disclosed is a frame for a control cabinet, characterized by being formed by a horizontal second bent surface.

Cabinet, frame, corner member, packing, adhesive protrusion

Description

Frame for control cabinet

The present invention relates to a frame for a control cabinet and a coupling structure thereof, and more particularly, an electric and electronic control that is easy to assemble a corner portion and has excellent strength, and that a packing can be maintained in a solid mounting state as well as to improve waterproofness. It relates to a cabinet frame and a coupling structure thereof.

In general, control cabinets of various electrical and electronic devices such as switchboards, distribution boards, or control centers for storing electrical and electronic devices, various devices, and wiring for monitoring, controlling, and protecting the electrical system are rectangular parallelepiped skeletons in which several frames are assembled. It is provided with a structure in which panels and doors are mounted on the floor.

As the frame of such a control cabinet, a so-called hollow frame having a square or triangular cross section and a so-called open frame formed by bending a steel sheet have been conventionally used.

The former has the advantage of easy to secure strength, but the workability is poor, the appearance is not good, and the manufacturing cost is increased, and the considerable difficulty in transportation and storage is not only due to the welding of the edges positioned at the corners correspondingly to each other. In addition, there is a disadvantage that you must use a special nut or a special structure to mount the device because it can not be put into the inside when mounting a variety of devices.

The latter can be easily mounted with a general nut, but the assembly process is very difficult, inconvenient, and sufficient strength and rigidity because of the complicated cutting so that each end located at the corner is three-dimensionally combined and then fixed using a separate corner member. There is a limit that cannot be obtained.

On the other hand, the cabinet is waterproof by interposing a seal or sealing with a sealant or the like between the frame and the panel or door constituting the outer wall of the control cabinet.

However, the conventional frame has a structure in which protrusions are formed to simply adhere to the panel or door in a direction perpendicular to each other on a cross section, and thus, a problem in that workability and waterproofness are significantly reduced since the bonding state of the packing is not firmly maintained. .

In view of the above, the present inventors have studied for many years to develop a control cabinet frame that can be easily assembled, has excellent strength, maintains a solid packing state, and improves waterproofness. The present invention was created and completed.

Accordingly, an object of the present invention is to provide a frame for a control cabinet and a coupling structure thereof, which are easy to assemble and excellent in strength.

Another object of the present invention is to provide a frame for a control cabinet and a coupling structure thereof in which a packing can be maintained in a secure mounting state.

In order to achieve the above object, the present invention is a frame for a control cabinet formed in each of the close contact projections for contacting the panel in a direction perpendicular to each other on the cross section symmetrical with respect to the virtual central axis, both sides of the contact projections A first coupling groove and a second coupling groove are formed in the first coupling groove, the first bending surface inclined at least 90 degrees with respect to the end surface of the adhesion protrusion, and the close contact at the end of the first bending surface. It provides a frame for a control cabinet, characterized in that formed by the end surface of the projection and the second bent surface horizontal.

The present invention also provides a plurality of hollow frame; In order to connect the frames, first to third coupling surfaces are formed in three axes that meet at right angles to each other, wherein at least one of the first to third coupling surfaces has a shape corresponding to the hollow portion of the frame and is inserted therein. A corner member having a fitting protrusion formed to be coupled to the other side and a fitting groove having a shape identical to that of the hollow part of the frame; It has a shape corresponding to the hollow portion of the frame and one side is inserted and coupled thereto, the other side provides a coupling structure of the frame for a control cabinet including a dowel pin inserted and coupled to the fitting groove of the corner member.

In addition, the frame of the present invention is formed in each of the adhesion protrusions for contacting the panel in the direction perpendicular to each other on the cross section of each other symmetrically with respect to the virtual central axis, each of the first coupling groove and the first Two coupling grooves are formed, wherein the first coupling groove has a first bent surface inclined at least 90 degrees with respect to the end surface of the adhesion protrusion, and is parallel to the end surface of the adhesion protrusion at the end of the first bending surface. Provided is a coupling structure of a frame for a control cabinet, characterized in that formed by the second bent surface.

In another aspect, the present invention provides a coupling structure of the frame for the control cabinet is coupled to surround the close protrusion, further comprising a packing formed at both ends of the first and second coupling protrusions corresponding to the first and second coupling grooves. .

In addition, on the opposite surface of the frame and the dowel pin of the present invention provides a coupling structure of a frame for a control cabinet formed with a plurality of fastening holes for coupling with a separate fastening member.

In the frame of the present invention having the problem solving means as described above, the first coupling groove and the second coupling groove are symmetrical with respect to the virtual central axis, respectively, on the inner and outer surfaces of the contact protrusions formed in the direction perpendicular to each other on the cross section. The first bent surface inclined more than 90 degrees with respect to the end face of the contact protrusion in contact with the panel or the door, and the second surface parallel to the end face of the contact protrusion at the end thereof. Since the first coupling groove formed by the bent surface is capable of corresponding coupling with the first coupling protrusion of the packing, the mounting state of the packing can be maintained firmly and stably, and when the sealing process is performed with a sealant or the like, the first coupling groove is a drainage flow path. Since it performs the function of the water is smooth, there is a very special effect to greatly improve the waterproofness.

In addition, the frame coupling structure of the present invention, since the coupling state of the frame and the corner member for connecting it is maintained firmly without separate parts such as bolts or screws, greatly improves the workability according to the coupling, as well as mutual assembly and disassembly There is a very advantageous effect that can be made quickly and easily.

In addition, the frame coupling structure of the present invention, one end of the dowel pin is inserted into the fitting groove formed in the same shape as the hollow portion of the frame on any one or more coupling surface of the corner member, the other end is coupled to the hollow portion of the frame Since the corner member and the frame are connected to each other by inserting and joining, the joint strength can be reinforced to reduce the welded portion, thereby improving the workability due to assembly and reducing the cost.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, terms to be described below are defined in consideration of functions in the present invention, and it is stated that they should be interpreted as meanings that are commonly used in concepts and technical fields in accordance with the technical spirit of the present invention.

In addition, when it is determined that the detailed description of known functions or configurations related to the present invention may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is an overall perspective view showing a control cabinet with a frame coupling structure according to an embodiment of the present invention, Figures 2 and 3 is a perspective view of the disassembled main portion of Figure 1 as viewed from the inside / outside direction, Figure 4 3 is an enlarged perspective view of the corner member of FIG. 3, FIG. 5 is a state diagram of FIG. 3, FIG. 6 is a cross-sectional view of the frame, and FIG. 7 is a main cross-sectional view of a state in which a panel is sealed to the frame. As shown in FIG. 7, the coupling structure of the frame for the control cabinet according to the exemplary embodiment of the present invention includes a frame 100, a corner member 200, and a dowel pin 300.

That is, in order to form a rectangular parallelepiped cabinet skeleton, the corner members 200 are respectively positioned at eight corners so as to face each other, and both ends of the frame 100 are arranged in three axes in which the corner members 200 meet at right angles to each other. Combined to form 12 corners, and is provided to install a panel (P) or door between the frame 100.

In particular, the frame 100 is bent so that both ends of the steel plate is joined in a substantially right isosceles triangle shape when viewed in a cross-section to have a hollow portion 120, and the bilateral sides of the bottom sides when the reference is made of a right isosceles triangle, that is, each other Adhering projections 110 are formed to be in close contact with the panel P horizontally in a direction meeting at right angles, respectively. The first coupling groove 111 is formed symmetrically on the surface facing each other with respect to the bisector of the vertex angle, the second coupling groove 112 on the equilateral side of the outer surface, that is, the reference to the right isosceles triangle Is formed.

In addition, the first coupling groove 111 is the first bent surface 111a inclined at an angle of 90 degrees or more with respect to the end surface of the contact protrusion 110, and the contact protrusion 110 at the end of the first bent surface 111a. It is formed by the end surface of the second bent surface 111b is parallel to the sealing surface along the contact surface between the frame and the panel or the door, it is possible to secure the flow path space for guiding the flow of rain water, through this cabinet When the installation of the water flowing from the outside can be made smoothly.

In addition, as shown in FIG. 6, the first and second coupling grooves 111 and 112 are intended to obtain a waterproof effect by interposing a packing 400 between the frame 100 and the panel P or the door. In this case, the packing 400 tightly surrounds the tight protrusion 110 to maintain a more stable mounting state. That is, by forming the first and second coupling protrusions (410/420) to correspond to the first and second coupling grooves (111/112) of the close contact projections on both ends of the packing 400, the firmness by the form of interlocking with each other This makes the waterproofing much simpler and easier.

And on the opposite surface of the frame 100 into which the dowel pin 300 is inserted, that is, the vertex portion of the base and the dorsal side of the frame 100 and the dowel pin 300 are bolted or screwed to the vertex portion of the base and the isosceles on the opposite side of the frame 100. A plurality of fastening holes 130 are formed to be coupled to a separate fastening member, and the mounting holes for easily mounting various devices at regular intervals along the longitudinal direction of the isosceles when viewed from the basis of a right angle isosceles triangle ( A large number of 140 is formed.

Here, when the frame 100 is viewed as a reference of a right angle isosceles triangle, a hinge or a bracket for fixing a panel or the like is installed on the bottom side thereof so as to open and close the door.

The material of the frame 100 does not need a separate painting work and punches the mounting hole 140 by a punching machine using a steel plate coated with zinc (Zn), which is resistant to corrosion, and then banded by a roll forming method. Then, the cutting operation is continuously performed to a predetermined length to obtain a standardized shape.

Corner member 200 has a first to third coupling surface (210/220/230) is formed in the triaxial direction to meet at right angles to each other in order to assemble the frame 100, of which the first and second coupling surface Each of the fitting protrusions 211/221 having a shape corresponding to the hollow portion 120 of the frame and inserted into and coupled to the hollow portion 120 of the frame is formed, and the hollow portion of the frame is formed on the remaining third coupling surface 230. A fitting groove 231 having the same size and shape as that of 120 is formed.

And the corner member 200 is formed in the shape of a triangular pyramid with the outer center, the periphery of the first and second coupling grooves (111/112) and the contact protrusion 110 between the frame 100 and the other frame perpendicular to each other ) And the first and second corner grooves 241/242 and corner protrusions 240 are formed to be connected continuously.

Here, in the above-described embodiment and the accompanying drawings, fitting protrusions 211/221 are formed on the first and second coupling surfaces 210/220, respectively, and fitting grooves 231 on the remaining third coupling surfaces 230. ), But the fitting protrusion 211 is formed only on the first coupling surface 210 or the fitting groove or the fitting protrusion is formed on all of the first to third coupling surfaces (210/220/230). Of course you can.

Since the corner members 200 and the frame 100 maintain sufficient strength and bonding strength to withstand the load, not only the number of additional parts such as bolts can be reduced, but also the waterproof function can be greatly improved.

In addition, since the first to third coupling surfaces 210/220/230 of the corner member 200 contact the edges of the edge of the frame 100 to form the same outline and plane, it is easy to perform welding or the like on the portions that are in contact with each other. This makes it possible to maintain a stronger bond. That is, since the corner member 200 and the frame 100 are coupled to each other, secondary fixing work such as welding can be performed on only a part of the corner member 200 and the frame 100, thereby improving workability as well as minimizing the welding part. Will be.

Dowel pin 300 is to reinforce the connection state of the frame 100 and the corner member 200, has a shape corresponding to the hollow portion 120 of the frame, the corner member is coupled to the corner member 200 The contact groove 330 is formed to correspond to the fitting groove 231 of the frame, and the same as the frame on the same line as the fastening hole 130 of the frame along the outer surface facing the inner surface of the hollow portion 120 of the frame A plurality of fastening holes 320 are formed to allow fast and easy mutual coupling with separate fastening members such as bolts or screws.

One end of the dowel pin 300 is inserted and coupled to the hollow portion 120 of the frame and the other side is inserted and coupled to the fitting groove 231 of the corner member to the stress sustained by the frame 100 and the corner member 200. It will reinforce your response.

Therefore, when the dowel pin 300 is installed in the front and rear and lateral directions of the cabinet and is applied between the frame 100 and the corner member 200 that receive a lot of load, it is possible to secure sufficient rigidity by reinforcing the connection state with each other. Due to the reduced welded parts there is an effect of reducing the cost as well as the workability of the assembly.

On the other hand, the present invention is not limited by the above-described embodiment and the accompanying drawings, it can be changed to other embodiments equivalent to substitution and equivalent within the scope without departing from the technical spirit of the present invention is usually in the art. It will be evident to those who have knowledge of.

1 is a perspective view showing a control cabinet by a frame coupling structure according to an embodiment of the present invention;

2 and 3 are perspective views when the main parts of FIG. 1 are disassembled, as viewed from the inside / outward direction;

4 is an enlarged perspective view of a corner member of FIG. 3;

5 is a combined state of FIG.

6 is a cross-sectional view of a frame for a control cabinet according to an embodiment of the present invention;

7 is a cross-sectional view showing a main part of a state in which a panel is sealed on a frame for a control cabinet according to an embodiment of the present invention;

8 is a cross-sectional view showing main parts of a state in which packing is mounted on a frame for a control cabinet according to an embodiment of the present invention and a panel is installed.

<Explanation of symbols for the main parts of the drawings>

100: frame 110: contact protrusion

111: first coupling groove 112: second coupling groove

111a: first curved surface 111b: second curved surface

120: hollow part 130/320: fastening hole

140: mounting hole

200: corner member 210: first coupling surface

211: fitting protrusion 220: second engagement surface

221: fitting protrusion 230: third coupling surface

231: fitting groove 240: corner projection

241: first corner groove 242: second corner groove

300: Dowel pin 330: contact groove

400: packing 410: first coupling protrusion

420: second coupling protrusion P: panel

Claims (5)

delete A plurality of hollow frames; In order to connect the frames, first to third joining surfaces are formed in three axis directions perpendicular to each other, and at least one of the first to third joining surfaces has a shape corresponding to the hollow part of the frame and is inserted therein. A corner member having a fitting protrusion formed to be coupled to the other side and a fitting groove having a shape identical to that of the hollow part of the frame; In the control cabinet frame having a shape corresponding to the hollow portion of the frame and one side is inserted and coupled thereto, the other side is inserted and coupled to the fitting groove of the corner member, The frame is formed in each of the adhesion protrusions for contacting the panel in the direction perpendicular to each other on the cross-section is symmetrical with respect to the virtual central axis, respectively, the first coupling groove and the second coupling grooves on both sides of the adhesion projection, respectively A first bent surface inclined at an angle of 90 degrees or more with respect to an end face of the adhesion protrusion, and a second bent surface horizontal to an end surface of the adhesion protrusion at an end of the first bent surface. Formed by The control cabinet frame is tightly coupled to the close coupling, and further comprising a packing formed on both ends of the first and second coupling projections corresponding to the first and second coupling grooves. delete delete The method of claim 2, Frame for the control cabinet formed with a plurality of fastening holes for coupling with a separate fastening member on the opposite surface of the frame and the dowel pin, respectively.

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