A double-sided switchgear

Abstract

The utility model relates to low -voltage switchgear field, concretely provides a double -faced switch cabinet, including cabinet, cabinet is sequentially provided with front cabinet, interval room and rear cabinet, and the front cabinet includes the front drawer room of drawer and the front wiring room of intercommunication interval room, and the rear cabinet includes the rear drawer room of drawer and the rear wiring room of intercommunication interval room, and the front drawer room is provided with the front vertical busbar, and the front vertical busbar can be placed in interval room and rear wiring room, and the rear drawer room is provided with the rear vertical busbar, and the rear vertical busbar can be placed in interval room and front wiring room, the utility model does not need to consider the depth of interval room to set up vertical busbar, can operate cabinet manufacturing when the depth of interval room is reduced according to actual conditions, and further control the whole switch cabinet depth, let switch cabinet be smaller, be more suitable for the distribution room of space shortage, can directly overhaul, maintain the front vertical busbar through rear wiring room, also can overhaul, maintain the rear vertical busbar through front wiring room.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage switchgear, and specifically provides a double-sided switchgear. Background Technology

[0002] Traditional drawer-type low-voltage switchgear typically has a single-sided drawer. Due to limited space in user distribution rooms, drawer-type switchgear needs to be installed back-to-back to minimize cabinet depth. However, the presence of load-bearing columns in the distribution room necessitates that switchgear not be installed within one meter of a single column to avoid affecting operation and causing safety issues. Therefore, sections of the low-voltage distribution system near load-bearing columns can only have front-mounted switchgear, not two sets back-to-back. If each switchgear has its own main busbar, the main busbar of the back switchgear would be suspended in a single section. Therefore, the main busbar of the back switchgear is usually transferred to the main busbar of the front switchgear. However, transferring the main busbar is difficult and increases the height of the switchgear, raising the cost of the main busbar.

[0003] Currently, there is a type of double-sided switchgear on the market, such as the existing patent CN208923699U. In this switchgear, the front and rear drawers share a vertical busbar and a main busbar. When using this double-sided switchgear in a space-constrained power distribution room, the main busbar connection is not required. However, since the drawers on both sides share a single vertical busbar, the vertical busbar will be directly blocked by the front and rear drawers after the switchgear is installed, leaving no maintenance space. At the same time, space needs to be left between the drawers on both sides to install the vertical busbar, and the adjustment range of the cabinet depth of the double-sided switchgear is limited. Utility Model Content

[0004] Firstly, in order to solve the above problems, this utility model provides a switch cabinet that saves more cabinet depth space and is more conducive to maintenance. The specific technical solution is as follows:

[0005] A double-sided switch cabinet includes a cabinet body, in which a front cabinet, a spacing compartment, and a rear cabinet are arranged sequentially. The front cabinet includes a front drawer compartment for placing drawers and a front wiring compartment connecting to the spacing compartment. The rear cabinet includes a rear drawer compartment for placing drawers and a rear wiring compartment connecting to the spacing compartment. A front vertical busbar is provided on the front drawer compartment and can be placed in the spacing compartment and the rear wiring compartment. A rear vertical busbar is provided on the rear drawer compartment and can be placed in the spacing compartment and the front wiring compartment.

[0006] In this design, the front and rear drawers of the switchgear do not share a single vertical busbar. The front vertical busbar can be directly installed into the rear cabling compartment without interfering with the rear drawer compartment. Similarly, the rear vertical busbar can be directly installed into the front cabling compartment without interfering with the front drawer compartment. This cabinet structure eliminates the need to consider the depth of the spacing compartment for installing the vertical busbar, allowing the depth of the spacing compartment to be reduced during cabinet manufacturing based on actual conditions. This controls the overall cabinet depth, resulting in a smaller footprint for the switchgear and making it more suitable for space-constrained distribution rooms. Furthermore, with the vertical busbars located in both the front and rear cabling compartments without drawer obstruction, the front and rear vertical busbars can be directly inspected and maintained through both the rear and front cabling compartments.

[0007] Secondly, since the main busbars of switchgear in the same row need to be calibrated one by one and the phases of the main busbars need to be aligned, and the depth of double-sided switchgear is greater than that of other individual switchgear, after the main busbars are aligned, the uneven operation surface of the low-voltage power distribution system may result in the distance between other individual switchgear sections and the load-bearing columns being less than 1 meter, thus creating safety hazards.

[0008] Therefore, the rear vertical busbar is connected to the front vertical busbar on a horizontal main busbar, which is positioned at the top of the front or rear cabinet. In this design, because the main busbar passes through the top of the front or rear cabinet, it allows the main busbar of other single-drawer switch cabinets to be close to the front control panel, enabling the installation of switch cabinets with a shallower cabinet depth.

[0009] Preferably, the cabinet is further provided with a main busbar compartment, which is located on top of the front cabinet and the rear cabinet. The main busbar is located on one side of the main busbar compartment, and a communication management unit or switch is provided on the other side of the main busbar compartment.

[0010] In this scheme, the main busbar compartment protects the main busbar. Since the main busbar is located on one side of the main busbar compartment, there is still space to install a communication manager or switch, eliminating the need for external installation of these devices and saving space.

[0011] Thirdly, in existing drawers, the terminal blocks are directly located on one side of the vertical busbar, extending from the back of the drawer for wiring. This means that when wiring and maintaining the drawers, workers must go to the opposite wiring compartment. While the drawers on the maintenance side are de-energized during maintenance, if the drawers on the opposite side that don't require maintenance are kept energized, there is a safety hazard for workers. Furthermore, de-energizing drawers that don't require maintenance will affect the operation of the entire low-voltage equipment. Therefore, preferably, the terminal blocks of the drawers in the front drawer compartment extend from the side into the front wiring compartment, and the terminal blocks of the drawers in the rear drawer compartment extend from the side into the rear wiring compartment.

[0012] In this solution, by placing the wiring terminals on the side, staff can perform maintenance directly in the wiring compartment on the corresponding side. For example, when maintaining the wiring of the front drawer compartment, the operation can be carried out in the front wiring compartment without the need for staff to go back and forth to the other side as with existing switch cabinets. At the same time, the power is turned off on the switch cabinet on the same side, which does not affect the operation of drawers in other locations, thus ensuring the safety of the staff.

[0013] Preferably, the cabinet surface is provided with an inspection door covering the front and rear cable routing compartments.

[0014] Preferably, both the front drawer exterior and the rear drawer exterior are provided with protective cylinders, which respectively cover the front vertical busbar and the rear vertical busbar.

[0015] In this scheme, since the front and rear vertical busbars are placed in the rear and front cabling compartments respectively, and there are various cables in the cabling compartments, in order to avoid the vertical busbars affecting the cables in the cabling compartments, and to prevent workers from accidentally touching the vertical busbars during maintenance and causing danger, a protective cylinder is installed outside the vertical busbars. This protects the vertical busbars and also provides a safer environment for wiring, cabling, and maintenance in the cabling compartments.

[0016] Preferably, the protective cylinder is provided with a detachable vertical baffle on its wall to facilitate the maintenance of the vertical busbar.

[0017] Preferably, the vertical baffle is provided with heat dissipation slots, which facilitate the dissipation of heat from the vertical busbar into the wiring chamber through the heat dissipation slots.

[0018] Preferably, the front cabinet and the rear cabinet can contact each other, so that the depth of the spacing chamber is zero.

[0019] The beneficial effects of this utility model are:

[0020] 1. In this utility model, the front and rear drawers of the switch cabinet do not share a single vertical busbar. The front vertical busbar can be directly installed into the rear wiring compartment without interfering with the rear drawer compartment. Similarly, the rear vertical busbar can be directly installed into the front wiring compartment without interfering with the front drawer compartment. This eliminates the need to consider the depth of the spacing compartment for the vertical busbar, allowing for adjustments to the cabinet depth during manufacturing based on actual conditions. This controls the overall cabinet depth, resulting in a smaller footprint and making it more suitable for space-constrained distribution rooms.

[0021] 2. The vertical busbars are located in the front and rear cabling compartments, and there are no drawers to block them. Therefore, the front vertical busbars can be inspected and maintained directly through the rear cabling compartment, and the rear vertical busbars can also be inspected and maintained through the front cabling compartment. Attached Figure Description

[0022] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a top view of the present invention;

[0024] Figure 2 This is a perspective view of the present utility model;

[0025] Figure 3 This is a perspective view of the present invention from another angle.

[0026] In the above figures, the corresponding reference numerals are as follows:

[0027] 1-Front cabinet, 11-Front drawer compartment, 12-Front cabling compartment, 13-Front vertical busbar, 2-Rear cabinet, 21-Rear drawer compartment, 22-Rear cabling compartment, 23-Rear vertical busbar, 3-Spacing compartment, 4-Drawer, 41-Terminal block, 5-Main busbar compartment, 51-Main busbar, 6-Inspection door, 7-Protective cylinder, 71-Vertical baffle, 72-Heat dissipation slot. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described in conjunction with the accompanying drawings and through specific implementation methods of the embodiments of this utility model.

[0029] Example 1:

[0030] A type of double-sided switch cabinet, such as Figures 1 to 3 As shown, the cabinet includes a front cabinet 1, a spacing chamber 3, and a rear cabinet 2 arranged sequentially within the cabinet. The front cabinet 1 includes a front drawer chamber 11 for placing drawers 4 and a front wiring chamber 12 connecting to the spacing chamber 3. The rear cabinet 2 includes a rear drawer chamber 21 for placing drawers 4 and a rear wiring chamber 22 connecting to the spacing chamber 3. A front vertical busbar 13 is provided on the front drawer chamber 11, and the front vertical busbar 13 can be placed in the spacing chamber 3 and the rear wiring chamber 22. A rear vertical busbar 23 is provided on the rear drawer chamber 21, and the rear vertical busbar 23 can be placed in the spacing chamber 3 and the front wiring chamber 12.

[0031] Specifically, such as Figure 1As shown, the front drawer compartment 11 and the front cable management compartment 12 in the front cabinet 1 are arranged side by side, with drawer 4 inserted into the front drawer compartment 11 from the front of the cabinet. Similarly, the rear drawer compartment 21 and the rear cable management compartment 22 in the rear cabinet 2 are arranged side by side, with drawer 4 inserted into the rear drawer compartment 21 from the back of the cabinet. The front drawer compartment 11 and the rear drawer compartment 21 are located on opposite sides of the cabinet and are symmetrically arranged with the vertical center line of the cabinet as a reference center. The drawers 4 of the front cabinet 1 and the drawers 4 of the rear cabinet 2 do not share a vertical busbar. The front vertical busbar 13 can be directly installed into the rear cable management compartment 22 without interfering with the rear drawer compartment 21. The rear vertical busbar 23 can be directly installed into the front cable management compartment 12 without interfering with the front drawer compartment 11. This cabinet structure eliminates the need to consider the depth of the spacing chamber 3 for installing the vertical busbars. Even if the front drawer chamber 11 and the rear drawer chamber 21 are in contact, it will not affect the installation of the vertical busbars. This allows the depth of the spacing chamber 3 to be reduced during the manufacturing of the entire operating cabinet according to actual conditions, thereby controlling the overall cabinet depth. This results in a shorter cabinet depth and a smaller footprint, making it more suitable for power distribution rooms with limited space. The front vertical busbar 13 is fixedly installed on the back of the front drawer chamber 11. Both the front and back of the cabinet have access doors 6 that cover the front wiring chamber 12 and the rear wiring chamber 22. Opening the access doors 6 directly exposes the interior of the front wiring chamber 12 and the rear wiring chamber 22. Since the vertical busbars are located in the front and rear wiring chambers 22 without being obstructed by drawers 4, opening the access doors 6 allows direct access to inspect and maintain the front vertical busbar 13 through the rear wiring chamber 22, and also allows access to inspect and maintain the rear vertical busbar 23 through the front wiring chamber 12.

[0032] Example 2:

[0033] Based on Example 1, such as Figure 2 As shown, the cabinet also includes a main busbar compartment 5, which is located at the top of the front cabinet 1 and the rear cabinet 2. The rear vertical busbar 23 and the front vertical busbar 13, similar to existing technologies, share a single main busbar 51, which is located at the top of either the front cabinet 1 or the rear cabinet 2. This allows the main busbar 51 to be placed on one side of the main busbar compartment 5, freeing up space on the other side for devices such as communication management units and switches, eliminating the need for external installations and saving space.

[0034] Furthermore, since the main busbar 51 passes through the top of the front cabinet 1 or the rear cabinet 2, it allows the main busbar 51 of other single-drawer switch cabinets 4 to be close to the front operation panel, enabling switch cabinets with a smaller cabinet depth and making it easier to meet the requirement of being 1m away from the load-bearing column. In this embodiment, since the main busbar 51 is a side-exit structure and is located at the top of the front cabinet 1, if other single-sided switch cabinets use the front of this double-sided switch cabinet as a reference and align the main busbar 51, the main busbar 51 of the other single-sided switch cabinets will also pass through the top of the cabinet, without occupying too much space and causing the cabinet depth of other single-sided switch cabinets to increase.

[0035] Example 3:

[0036] In the existing drawer 4, the outgoing terminals are directly located on one side of the vertical busbar, extending from the rear of the drawer 4 for wiring. This means that when wiring and maintaining drawer 4, workers need to go to the opposite wiring room. The drawer 4 on the maintenance side is de-energized during maintenance, but if the drawer 4 on the opposite side, which does not require maintenance, remains powered, there is a safety hazard for workers. Furthermore, de-energizing the drawer 4, which does not require maintenance, will affect the operation of the entire low-voltage equipment. Therefore, based on the above embodiment, if... Figure 1 As shown, the wiring terminal 41 of drawer 4 in the front drawer compartment 11 extends from the side into the front wiring compartment 12, and the wiring terminal 41 of drawer 4 in the rear drawer compartment 21 extends from the side into the rear wiring compartment 22. By placing the wiring terminal 41 on the side, maintenance personnel can directly perform maintenance in the corresponding side wiring compartment. For example, to maintain the wiring of drawer 4 in the front drawer compartment 11, the operation can be carried out in the front wiring compartment 12. Unlike existing switch cabinets, where personnel need to go back and forth to the opposite side for maintenance, this design allows for power outages on the same side of the switch cabinet, ensuring the safety of personnel without affecting the operation of drawers 4 in other locations.

[0037] It should be noted that, since the front and rear vertical busbars 23 are located in the rear and front cable trays 12 respectively, and various cables will be present in the cable trays, in order to avoid the vertical busbars affecting the cables in the cable trays, and to prevent personnel from accidentally touching the vertical busbars during maintenance and causing danger, as follows: Figures 1 to 3 As shown, protective cylinders 7 are provided outside both the front drawer compartment 11 and the rear drawer compartment 21. The protective cylinders 7 cover the vertical front busbar 13 and the rear vertical busbar 23, respectively. The protective cylinders 7 outside the vertical busbars protect the vertical busbars and also provide a safer environment for wiring, cabling, maintenance, and inspection in the wiring compartment.

[0038] Of course, the protective cylinder 7 is provided with a detachable vertical baffle 71 on its cylinder wall. The protective cylinder 7 is preferably a cuboid cylinder. The vertical baffle 71 is snapped or bolted to the protective cylinder 7 to achieve a detachable connection. By opening the vertical baffle 71, the vertical busbar inside the protective cylinder 7 can be exposed, which is convenient for the vertical busbar to be inspected and maintained.

[0039] Furthermore, such as Figure 3 As shown, the vertical baffle 71 is provided with heat dissipation slots 72, which facilitates the dissipation of heat from the vertical busbar into the wiring chamber through the heat dissipation slots 72.

[0040] It should be noted that the switchgear provided in this embodiment is a 3P switchgear, with only A, B, and C busbars in the vertical busbars; the N main busbar 51 is unused. Figures 1 to 3 The vertical busbar in the switch cabinet is not connected to the N busbar. If the switch cabinet is 4P, then the N vertical busbar needs to be installed in the protective cylinder 7.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A double-sided switch cabinet, comprising a cabinet body, wherein a front cabinet (1), a spacing chamber (3), and a rear cabinet (2) are sequentially arranged within the cabinet body, characterized in that, The front cabinet (1) includes a front drawer compartment (11) for placing drawers (4) and a front wiring compartment (12) connecting the spacing compartment (3). The rear cabinet (2) includes a rear drawer compartment (21) for placing drawers (4) and a rear wiring compartment (22) connecting the spacing compartment (3). A front vertical busbar (13) is provided on the front drawer compartment (11). The front vertical busbar (13) can be placed in the spacing compartment (3) and the rear wiring compartment (22). A rear vertical busbar (23) is provided on the rear drawer compartment (21). The rear vertical busbar (23) can be placed in the spacing compartment (3) and the front wiring compartment (12).

2. A double-sided switch cabinet according to claim 1, characterized in that, The rear vertical busbar (23) is connected to the front vertical busbar (13) on the horizontal main busbar (51), which is located on top of the front cabinet (1) or the rear cabinet (2).

3. A double-sided switch cabinet according to claim 2, characterized in that, The cabinet is also equipped with a main busbar compartment (5), which is located on top of the front cabinet (1) and the rear cabinet (2). The main busbar (51) is located on one side of the main busbar compartment (5), and a communication management unit or switch is located on the other side of the main busbar compartment (5).

4. A double-sided switch cabinet according to claim 1, characterized in that, The wiring terminal (41) of the drawer (4) in the front drawer compartment (11) extends from the side into the front wiring compartment (12), and the wiring terminal (41) of the drawer (4) in the rear drawer compartment (21) extends from the side into the rear wiring compartment (22).

5. A double-sided switch cabinet according to claim 4, characterized in that, The cabinet surface is provided with an inspection door (6) covering the front wiring compartment (12) and the rear wiring compartment (22).

6. A double-sided switch cabinet according to claim 1, characterized in that, Protective cylinders (7) are provided outside the front drawer compartment (11) and the rear drawer compartment (21), respectively covering the front vertical busbar (13) and the rear vertical busbar (23).

7. A double-sided switch cabinet according to claim 6, characterized in that, The protective cylinder (7) is provided with a detachable vertical baffle (71) on its cylinder wall.

8. A double-sided switch cabinet according to claim 7, characterized in that, The vertical baffle (71) is provided with heat dissipation slots (72).

9. A double-sided switch cabinet according to claim 1, characterized in that, The front cabinet (1) and the rear cabinet (2) can contact each other, so that the depth of the gap chamber (3) is zero.

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