Protective cabinet door structure of power distribution cabinet

Abstract

The utility model discloses a protective cabinet door structure of a power distribution cabinet, which comprises a cabinet body and an outer door arranged at the front part of the cabinet body, a vertical bus bar and a plurality of circuit breakers arranged at the two sides of the bus bar are arranged in the cabinet body, and conductive plugs of the circuit breakers at the two sides are respectively inserted on the edges of the two sides of the bus bar. And an inner door is arranged on the inner side of the outer door in the cabinet body, a window convenient for operating the circuit breaker switch is arranged on the inner door, a frame which is concavely extended inwards is connected to the peripheral edge of the window, and a bus bar housing which covers the bus bar is arranged on the window. According to the utility model, through the arrangement of the inner door, a protection effect can be achieved, and operators are prevented from being hurt during maintenance and repair; the arrangement of the window is also convenient for operators to operate the circuit breaker, and the inner door can be opened during maintenance to facilitate maintenance.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper box packing field, concretely relates to a protective cabinet door structure of switch board. BACKGROUND

[0002] The switch board can distribute the electric energy of a circuit of a previous distribution equipment to the nearby load, and provides protection, monitoring and control for the load. The existing switch board has many internal circuits, and the cabinet door is hinged to the cabinet body through a hinge to play a shielding role. However, when the cabinet door is opened, the components installed in the cabinet body are exposed, and the operator will be electrically shocked when operating under the condition of electrification, so the safety is low. SUMMARY

[0003] Therefore, the utility model provides a protective cabinet door structure of switch board.

[0004] The purpose of the utility model can be realized through the following technical scheme.

[0005] A protective cabinet door structure of switch board, comprising a cabinet body and an outer door hinged to the front part of the cabinet body, a vertical busbar row and a plurality of circuit breakers located on both sides of the busbar row are installed in the cabinet body, the conductive plugs of the circuit breakers on both sides are respectively inserted into the two side edges of the busbar row, an inner door is installed in the cabinet body on the inner side of the outer door, a window is arranged on the inner door to facilitate the operation of the circuit breakers, a frame extending inwardly and recessed is connected to the four peripheral edges of the window, and a busbar cover is arranged on the window to cover the busbar row.

[0006] The inner door can play a protective role during normal use, so that the operator will not be injured during maintenance and repair, and the inner door can also be opened to facilitate maintenance during repair. The arrangement of the window also facilitates the operation of the circuit breakers by the operator.

[0007] In the specific embodiment of the utility model, the circuit breakers are installed in the cabinet body through the mounting structure.

[0008] In the utility model specific implementation mode: the mounting structure includes support and the mounting plate located busbar row rear, the support is installed at the back of the circuit breaker, is equipped with hole assembly on the mounting plate, the hole assembly is by the horizontal slot and mounting hole of interval arrangement constitutes, the bottom surface of the support has the hook head inserted in the slot, the tail end has the through hole connected with the mounting hole, the rear part of the support is opened and is equipped with the auxiliary hole for adjusting the support position with the through hole cooperation in the position corresponding the through hole between the slot and the mounting hole, is equipped with locking screw in the through hole and the mounting hole. Adopt above-mentioned technical scheme, install the support to the back of the circuit breaker, insert the hook head of the support in the slot, cooperate through the auxiliary hole and the through hole, quickly install the support in place, so that the conductive plug of the circuit breaker is inserted on the busbar row, finally is fixed through the locking screw, simple structure, convenient to use.

[0009] In the utility model specific implementation mode: the end of the slot close to the busbar row is the taper head of width gradually narrow.

[0010] In the utility model specific implementation mode: the hole assembly is arranged along the height direction of the mounting plate multiple groups.

[0011] In the utility model specific implementation mode: the mounting plate is located on the two sides of the busbar row and is symmetrically provided with two vertical rows of hole assemblies, and one side of the vertical row of hole assemblies is further provided with a vertical row of hole assemblies. By adopting the structure, the installation of the circuit breaker with large size can be met.

[0012] In the utility model specific implementation mode: the side plates are installed on the left and right sides of the cabinet body, a plurality of mounting openings are formed on the side plates from top to bottom, and the mounting plate can be detachably installed at each mounting opening. By adopting the structure, when the power line of the new equipment needs to be connected to the power distribution cabinet, the mounting plate at one mounting opening can be detached, then the mounting plate is moved to the outside of the power distribution room and a hole suitable for the power line of the equipment is opened, then the mounting plate is fixed back to the original position, the power line of the equipment is passed through the hole in the mounting plate and connected to the busbar in the power distribution cabinet, which is very safe and convenient.

[0013] In the utility model specific implementation mode: the mounting plate includes a plate main body and a lower edge connected to the lower edge of the plate main body, and the lower edge of the mounting plate is pressed on the upper edge of the adjacent lower mounting plate.

[0014] In the utility model specific implementation mode: the lower edge is divided into an inclined part connected to the plate main body and a vertical part connected to the lower edge of the inclined part.

[0015] In the utility model specific implementation mode: the inner side surface of the lower edge is pasted with a sealing rubber pad.

[0016] In the utility model specific implementation mode: still include ventilation base, the cabinet is installed on ventilation base, ventilation base and cabinet inside are linked together, first ventilation hole is established in ventilation base and the lower part of outer door, second ventilation hole is established in the upper door body of inner door and the upper part of outer door. Adopt this structure, because the busbar row works for a period of time and will heat, make the air temperature in the cabinet rise, hot air will rise due to small density, and is discharged through the second ventilation hole in the top of cabinet, and cold air is continuously supplemented into the cabinet from the first ventilation hole below, makes the cabinet form a natural ventilation circulation, to reach the purpose of heat dissipation.

[0017] In conclusion, the utility model discloses a protective cabinet door structure of switchgear cabinet, which comprises a cabinet body, an inner door is installed in the cabinet body, a plurality of installation holes are formed in the side plate of the cabinet body, and an installation plate is detachably installed at each installation hole. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described below with reference to the drawings.

[0019] Figure 1 It is the structure schematic view of the protective cabinet door structure of switchgear cabinet of the utility model;

[0020] Figure 2 It is shown that the circuit breaker is installed in the cabinet through the mounting structure;

[0021] Figure 3 It is Figure 2 the enlarged view of A in the figure;

[0022] Figure 4 It is the structure schematic view of the utility model support;

[0023] Figure 5 It is the structure schematic view of the utility model installation plate;

[0024] Figure 6 It is Figure 5 the enlarged view of B in the figure. DETAILED DESCRIPTION

[0025] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0026] Please refer to Figure 1 and Figure 2 The utility model discloses a protective cabinet door structure of switch board, including cabinet 10 and hinged on a pair of outer door 11 of cabinet 10. The vertical busbar row 9 and the plurality of circuit breakers 8 on both sides of busbar row are installed in the cabinet 10, and the conductive plug 801 of left and right circuit breakers 8 is inserted on the both sides edge of busbar row. The inner door 12 is installed in the rear side of outer door 11 in the cabinet 10. The inner door 12 is divided into upper door body 125 in upper part and lower door body 126 in lower part. The window 121 for conveniently operating circuit breaker 8 is arranged on lower door body 126. The frame 122 extending inwardly recessed is connected on the four peripheral edges of window 121. The busbar row cover shell 123 covering busbar row 9 is arranged in window 121. The busbar row cover shell 123 has a plurality of heat dissipation holes 124. The inner door 12 is closed to play a protective role when normal use, to avoid the harm to the operator when maintaining and overhauling, and can be opened to facilitate maintenance when repairing. The window setting also facilitates the operator to operate circuit breaker.

[0027] As Figure 2 , Figure 3 and Figure 4 The circuit breaker 8 is assembled in the cabinet 10 through the mounting structure. The mounting structure includes a bracket 13 and a mounting plate 14 located behind the busbar. The bracket 13 is installed on the back of the circuit breaker 8. The mounting plate 14 is provided with a hole assembly 15. The hole assembly 15 includes a mounting hole 152 and a horizontal slot 151 arranged at intervals. The bracket 13 has a hook head 131 inserted into the slot 151 on the bottom surface, and a through hole 132 at the tail end communicating with the mounting hole 152. Locking screws are arranged in the through hole 132 and the mounting hole 152. Of course, the bracket 13 can be provided in multiple sizes to meet the installation requirements of circuit breakers of different sizes.

[0028] The slot 151 has a tapered end that tapers towards the busbar. Additionally, a through hole 133 is provided at the rear of the bracket 13. Auxiliary holes 153 are provided between the slot 151 and the mounting hole 152, corresponding to the through hole 133, to adjust the position of the bracket 13. There are four auxiliary holes 153, spaced apart along the length of the mounting plate. During assembly, insert the tip of a flathead screwdriver through the through hole 133 into the auxiliary hole 153, which is biased towards the busbar. Then, using the auxiliary hole 153 as a fulcrum, the screwdriver moves the bracket to one side of the busbar, causing the circuit breaker to engage with the busbar. Because the end of the slot is a tapered head with a gradually narrowing width, the end of the bracket clamps the hook during engagement. When the mounting hole 152 aligns with the through hole 132, the end of the locking screw is passed through the through hole 132 and tightened into the mounting hole 152. Multiple auxiliary holes improve the flexibility and accuracy of installation. When removal is needed, it can also be quickly performed through the auxiliary holes 153.

[0029] In this embodiment, multiple sets of hole assemblies 15 are arranged along the height direction of the mounting plate. This structure allows multiple circuit breakers 8 to be installed in different positions. A vertical row of hole assemblies 15 is symmetrically arranged on both sides of the busbar on the mounting plate. Furthermore, a vertical row of hole assemblies 15 is also provided outside the outer row of hole assemblies on one side, allowing larger circuit breakers to be installed on the outer hole assemblies 15.

[0030] Combination Figure 5As shown, side plates 17 are installed on the left and right sides of cabinet body 10. A plurality of mounting holes 171 are formed in each side plate 17 from top to bottom. A mounting plate 172 is detachably installed at each mounting hole 171. Each mounting plate 172 is fixed to side plate 17 by screws. Since the power distribution cabinet generally adopts a fully enclosed structure, its main purpose is to prevent the invasion of impurities such as dust and moisture from the outside, so as to ensure the safe and reliable operation of electrical equipment. Therefore, during the manufacturing process of the power distribution cabinet, holes for connecting the power supply of the equipment are not pre-provided. Usually, before the power distribution cabinet is installed in the power distribution room, according to the actual needs, holes with sizes suitable for the number and size of the power supply of the equipment are accurately opened on site. Then, the power distribution cabinet is installed in the power distribution room, and the power supply of the equipment is connected to the bus bar in the power distribution cabinet through the circuit breaker. However, when the enterprise needs to add new equipment, there is no hole on the power distribution cabinet for the power supply line of the new equipment to pass through. If the power distribution cabinet is directly opened in the power distribution room to solve this problem, it may cause serious safety hazards. However, by using the above technical scheme, when the power supply line of the new equipment needs to be connected to the power distribution cabinet, the mounting plate at one mounting hole can be removed, then the mounting plate 172 is moved outside the power distribution room and a hole suitable for the power supply line of the equipment is opened, then the mounting plate with the hole is installed back to the original position, and the power supply line of the new equipment is connected to the circuit breaker in the power distribution cabinet through the hole in the mounting plate 172. It is very safe and convenient.

[0031] In combination Figure 6 As shown, in this embodiment, mounting plate 172 includes a plate body 173 and a lower edge connected to the lower edge of plate body 173. The lower edge of the upper mounting plate 172 is pressed on the upper edge of the adjacent lower mounting plate 172. The lower edge includes an inclined portion 174 connected to the lower edge of plate body 173 and a vertical portion 175 connected to the lower edge of inclined portion 174. A sealing rubber is attached to the inner side of the lower edge. Since the mounting plate is detachably installed at the mounting hole, there will be a gap between the mounting plate 172 and the side plate 17. When it is humid and cold, because of the temperature difference between the inside and outside of the cabinet, water vapor in the air will attach to the surface of the cabinet to form water droplets. When the water droplets flow down the side plate, they may seep into the cabinet through the gap between the mounting plate 172 and the side plate 17, causing safety hazards. By using the above mounting plate structure, when water droplets flow down the side plate, they directly drip onto the bottom surface along the plate body and the lower edge, preventing liquid from seeping into the cabinet. In addition, the upper edge of the uppermost mounting plate and the side plate can be sealed with sealing rubber to prevent water droplets from seeping between the uppermost mounting plate and the side plate.

[0032] As Figure 1As shown, the cabinet further comprises a ventilated base 7. The cabinet body 10 is installed on the ventilated base 7. The ventilated base 7 is communicated with the inside of the cabinet body 10. The first ventilation holes 103 are arranged on the ventilated base 7 and the lower part of the outer door 11. The second ventilation holes 104 are arranged on the upper door body 125 of the inner door 12 and the upper part of the outer door. Since the busbar will heat up after working for a period of time, the air temperature in the cabinet will rise. The hot air will rise due to the small density, and will be discharged through the second ventilation holes on the top of the cabinet. The cold air will be continuously supplemented into the cabinet through the first ventilation holes below, so that the cabinet forms a natural ventilation circulation, thereby achieving the purpose of heat dissipation.

[0033] In summary, the utility model discloses a cabinet body is installed with the inner door, and the window for conveniently operating the circuit breaker is formed on the inner door, and the frame extending inward is connected to the periphery of the window, and the busbar cover is installed in the window, so that the protection effect can be achieved during normal use, and the operator can be prevented from being hurt during maintenance and repair, the window is convenient for the operator to operate the circuit breaker, and the inner door can be opened to facilitate maintenance during maintenance. A plurality of installation openings are formed in the side plate, and the mounting plate can be detachably installed at each installation opening, so that the mounting plate can be conveniently taken out of the power distribution room to form the hole for the power supply line of the equipment to pass through. The circuit breaker is installed on the support, the hook of the support is inserted into the insertion slot, the support is quickly installed in place through the cooperation of the auxiliary hole and the perforation, and the conductive plug of the circuit breaker is inserted into the busbar.

[0034] The above embodiment of the utility model is described in detail, but the content is only the preferred embodiment of the utility model, and cannot be considered as limiting the implementation range of the utility model. Any equivalent change and improvement within the application range of the utility model should still belong to the patent coverage range of the utility model.

Claims

1. A protective door structure of a power distribution cabinet, comprising a cabinet body and an outer door hinged to the cabinet body, a vertical busbar is installed in the cabinet body, and a plurality of circuit breakers are installed on both sides of the busbar, and the conductive plugs of the circuit breakers on both sides are respectively inserted into the edges of the busbar, characterized in that, The inner door is installed in the cabinet body at the inner side of the outer door, and a window is arranged on the inner door for conveniently operating the circuit breaker switch.

2. The protected cabinet door structure of the switchgear cabinet according to claim 1, characterized in that, The circuit breaker switch is installed in the power distribution cabinet through the mounting structure.

3. The protected cabinet door structure of the switchgear cabinet according to claim 2, characterized in that, The mounting structure comprises a bracket and a mounting plate arranged behind the busbar, the bracket is installed on the back of the circuit breaker switch, and a hole assembly is arranged on the mounting plate, the hole assembly comprises horizontally arranged slots and mounting holes, the bottom surface of the bracket is provided with a hook head inserted into the slot, the tail end is provided with a through hole communicated with the mounting hole, a through hole is arranged at the rear of the bracket, an auxiliary hole is arranged at the position corresponding to the through hole between the slot and the mounting hole, and the auxiliary hole is matched with the through hole to adjust the position of the bracket, and locking screws are arranged in the through hole and the mounting hole.

4. The protected cabinet door structure of the switchgear cabinet according to claim 3, characterized in that, The slot is a tapered head with gradually narrowed width near the end of the busbar.

5. The protected cabinet door structure of the switchgear cabinet according to claim 4, characterized in that, The hole assembly is arranged in multiple groups along the height direction of the mounting plate.

6. The protected cabinet door structure of the switchgear cabinet according to claim 5, characterized in that, Two vertical hole assemblies are symmetrically arranged on the mounting plate on both sides of the busbar, and a vertical hole assembly is further arranged on the outer side of one of the vertical hole assemblies.

7. The protected cabinet door structure of the switchgear cabinet according to claim 1, characterized in that, Side plates are arranged on the left and right sides of the cabinet body, and a plurality of mounting holes are arranged on the side plates from top to bottom.

8. The protected cabinet door structure of the switchgear cabinet according to claim 7, characterized in that, The mounting plate comprises a plate body and a lower edge connected to the lower edge of the plate body, wherein the lower edge of the upper mounting plate is pressed on the upper edge of the adjacent lower mounting plate, and a sealing rubber gasket is attached to the inner side of the lower edge.

9. The protected cabinet door structure of the switchgear cabinet according to claim 8, characterized in that, The lower edge is divided into an inclined part connected to the plate body and a vertical part connected to the lower edge of the inclined part.

10. The protected cabinet door structure of the electrical distribution cabinet of claim 8, wherein, The cabinet body is installed on the ventilation base, the ventilation base is communicated with the inside of the cabinet body, first ventilation holes are arranged on the ventilation base and the lower part of the outer door, and second ventilation holes are arranged on the upper door body of the inner door and the upper part of the outer door.

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