Low-voltage switch cabinet

Abstract

The utility model discloses a low-voltage switch cabinet, which comprises a cabinet body, a circuit breaker and a main busbar, wherein the circuit breaker and the main busbar are arranged in the cabinet body; the main busbar comprises an upper pile head main busbar and a lower pile head main busbar, the upper pile head main busbar is connected with the circuit breaker through a first connecting piece, and the lower pile head main busbar is connected with the circuit breaker through a second connecting piece. The low-voltage switch cabinet solves the technical problems that the existing low-voltage switch cabinet is complex in structure, copper bars are wasted in component arrangement, and the cost is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to power technical field especially relates to a low voltage switch cabinet. BACKGROUND

[0002] Low voltage switch cabinet is applicable to power plant, petroleum, chemical industry, metallurgy, textile, high -rise building etc. industry, as power transmission, distribution and electric energy conversion. Low voltage switch cabinet is divided into fixed type low voltage switch cabinet and pull -out type low voltage switch cabinet from structure, and fixed type low voltage switch cabinet can satisfy the reliable fixation of each electric element in the determined position of cabinet body. The cabinet body appearance is generally cubic, such as screen type, box type etc., also have prismatic body such as table type etc. The cabinet has single column, also has arrangement;Pull -out type low voltage switch cabinet is composed of fixed cabinet body and movable device part with switch and other main electric components, and the movable part is portable when moving, and the positioning is reliable after moving in, and the drawers of same type and specification can be reliably interchanged, and the processing method of the cabinet body in pull -out type is similar to the cabinet body in fixed type. At present, under the background of high demand of low voltage switch cabinet, how to reasonably layout components and save copper bar is particularly important, and the existing low voltage switch cabinet structure is complex, and the incoming line direction of low voltage switch cabinet is from the upper stake head of low voltage switch cabinet, so that the cost is high, and the use is inconvenient. Therefore, it is urgent to provide a low voltage switch cabinet to solve the technical problems of complex structure, copper bar waste and high cost of component arrangement of the existing low voltage switch cabinet. SUMMARY

[0003] The utility model discloses a low voltage switch cabinet, which aims to solve the technical problems of complex structure, copper bar waste and high cost of component arrangement of the existing low voltage switch cabinet.

[0004] To achieve the above-mentioned purpose, the utility model provides a low voltage switch cabinet, wherein the low voltage switch cabinet includes: a cabinet body, a circuit breaker and a main busbar placed in the cabinet body;The main busbar includes an upper stake head main busbar and a lower stake head main busbar, the upper stake head main busbar is connected with the circuit breaker through a first connecting piece, and the lower stake head main busbar is connected with the circuit breaker through a second connecting piece.

[0005] In one of the preferred embodiments, the upper stake head main busbar includes a main busbar upper stake head A phase, a main busbar upper stake head B phase and a main busbar upper stake head C phase.

[0006] In one of the preferred embodiments, the main busbar upper stake head A phase, the main busbar upper stake head B phase and the main busbar upper stake head C phase are arranged in parallel.

[0007] In one of the preferred embodiments, the main busbar upper stake head A phase, the main busbar upper stake head B phase and the main busbar upper stake head C phase adopt a copper bar structure.

[0008] In one preferred solution, the first connecting piece comprises a circuit breaker upper pile head A phase, a circuit breaker upper pile head B phase and a circuit breaker upper pile head C phase; the main busbar upper pile head A phase is connected with the circuit breaker through the circuit breaker upper pile head A phase, the main busbar upper pile head B phase is connected with the circuit breaker through the circuit breaker upper pile head B phase, and the main busbar upper pile head C phase is connected with the circuit breaker through the circuit breaker upper pile head C phase.

[0009] In one preferred solution, the lower pile head main busbar comprises a main busbar lower pile head A phase, a main busbar lower pile head B phase and a main busbar lower pile head C phase.

[0010] In one preferred solution, the main busbar lower pile head A phase, the main busbar lower pile head B phase and the main busbar lower pile head C phase are arranged in parallel.

[0011] In one preferred solution, the main busbar lower pile head A phase, the main busbar lower pile head B phase and the main busbar lower pile head C phase adopt a copper bar structure.

[0012] In one preferred solution, the second connecting piece comprises a circuit breaker lower pile head A phase, a circuit breaker lower pile head B phase and a circuit breaker lower pile head C phase; the main busbar lower pile head A phase is connected with the circuit breaker through the circuit breaker lower pile head A phase, the main busbar lower pile head B phase is connected with the circuit breaker through the circuit breaker lower pile head B phase, and the main busbar lower pile head C phase is connected with the circuit breaker through the circuit breaker lower pile head C phase.

[0013] In the above technical solution of the utility model, the low-voltage switch cabinet comprises: a cabinet body, a circuit breaker and a main busbar arranged in the cabinet body; the main busbar comprises an upper pile head main busbar and a lower pile head main busbar, the upper pile head main busbar is connected with the circuit breaker through a first connecting piece, and the lower pile head main busbar is connected with the circuit breaker through a second connecting piece. The utility model solves the technical problems of the prior art, such as complex structure, copper bar waste in component arrangement and high cost.

[0014] In the utility model, the upper pile head main busbar is connected with the circuit breaker upper pile head, that is, the upper pile head main busbar is a line-in end, and is connected with the circuit breaker upper pile head; after the circuit breaker is closed, current flows out from the circuit breaker lower pile head, the direction of the line-in is changed, the upper pile head main busbar and the lower pile head main busbar are arranged in parallel, reasonable layout is realized, copper bar waste is reduced, and the cost of the low-voltage switch cabinet is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0016] Figure 1 Figure 1 is a first structural schematic diagram of a low-voltage switch cabinet according to an embodiment of the present application.

[0017] Explanation of reference numerals:

[0018] 1, cabinet body; 21, main busbar upper stake head phase A; 22, main busbar upper stake head phase B; 23, main busbar upper stake head phase C; 31, main busbar lower stake head phase A; 32, main busbar lower stake head phase B; 33, main busbar lower stake head phase C; 4, circuit breaker.

[0019] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] It should be noted that all directional indications (such as up, down, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0022] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features.

[0023] Furthermore, the technical solutions of each embodiment of the present application can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0024] Reference Figure 1According to one aspect of the utility model, the utility model provides a low voltage switchgear, wherein the low voltage switchgear includes: cabinet body 1, and circuit breaker 4 and main busbar placed in the cabinet body 1, the main busbar includes upper stake head main busbar and lower stake head main busbar, the upper stake head main busbar is connected with circuit breaker 4 through first connecting piece, and the lower stake head main busbar is connected with circuit breaker 4 through second connecting piece.

[0025] Specifically, in the embodiment, the upper stake head main busbar includes main busbar upper stake head A phase 21, main busbar upper stake head B phase 22 and main busbar upper stake head C phase 23, and the main busbar upper stake head A phase 21, the main busbar upper stake head B phase 22 and the main busbar upper stake head C phase 23 are arranged in parallel.

[0026] Specifically, in the embodiment, the main busbar upper stake head A phase 21, the main busbar upper stake head B phase 22 and the main busbar upper stake head C phase 23 adopt copper bar structure.

[0027] Specifically, in the embodiment, the first connecting piece includes circuit breaker upper stake head A phase, circuit breaker upper stake head B phase and circuit breaker upper stake head C phase, the main busbar upper stake head A phase 21 is connected with circuit breaker 4 through circuit breaker upper stake head A phase, the main busbar upper stake head B phase 22 is connected with circuit breaker 4 through circuit breaker upper stake head B phase, and the main busbar upper stake head C phase 23 is connected with circuit breaker 4 through circuit breaker upper stake head C phase, and the upper stake head main busbar is connected with circuit breaker 4 through circuit breaker upper stake head A phase, circuit breaker upper stake head B phase and circuit breaker upper stake head C phase by incoming line from the main busbar upper stake head A phase 21, the main busbar upper stake head B phase 22 and the main busbar upper stake head C phase 23, and after circuit breaker 4 is closed, the outgoing line is from circuit breaker lower stake head A phase, circuit breaker lower stake head B phase and circuit breaker lower stake head C phase, so that the direction of the incoming line is changed.

[0028] Specifically, in the embodiment, the lower stake head main busbar includes main busbar lower stake head A phase 31, main busbar lower stake head B phase 32 and main busbar lower stake head C phase 33, and the main busbar lower stake head A phase 31, the main busbar lower stake head B phase 32 and the main busbar lower stake head C phase 33 are arranged in parallel.

[0029] Specifically, in the embodiment, the main busbar lower stake head A phase 31, the main busbar lower stake head B phase 32 and the main busbar lower stake head C phase 33 adopt copper bar structure.

[0030] Specifically, in the embodiment, the second connecting piece includes a circuit breaker lower pile head A phase, a circuit breaker lower pile head B phase and a circuit breaker lower pile head C phase; the main bus lower pile head A phase 31 is connected with the circuit breaker 4 through the circuit breaker lower pile head A phase, the main bus lower pile head B phase 32 is connected with the circuit breaker 4 through the circuit breaker lower pile head B phase, and the main bus lower pile head C phase 33 is connected with the circuit breaker 4 through the circuit breaker lower pile head C phase; the main bus upper pile head is connected with the circuit breaker 4 through the circuit breaker upper pile head A phase, the circuit breaker upper pile head B phase and the circuit breaker upper pile head C phase, and after the circuit breaker 4 is closed, the current flows out from the circuit breaker lower pile head A phase, the circuit breaker lower pile head B phase and the circuit breaker lower pile head C phase, so that the direction of the incoming line is changed.

[0031] Specifically, in the embodiment, the upper pile head main bus and the lower pile head main bus are divided into three phases A, B and C, and are connected with the circuit breaker upper pile head and the circuit breaker lower pile head A, B and C three phases respectively, and when the circuit breaker upper pile head and the circuit breaker lower pile head are connected, it is considered that the circuit breaker is closed, and the current can flow to the next stage switch. By adopting the layout mode of the upper pile head main bus and the lower pile head main bus, the copper bar can be saved. The incoming direction of the conventional connection cabinet is the lower pile head, that is, the incoming main bus is connected with the circuit breaker lower pile head, and after the circuit breaker 4 is closed, the current flows out from the circuit breaker upper pile head. The structure is more complex and has high cost. The length of the branch bar is 9.395 m, the copper bar material is 80*10, the copper bar weight is converted into 66.8924 kg, and the cost of 5351.392 yuan is generated. The length of the main bus is 6.042 m, the copper bar material is 100*10, the copper bar weight is converted into 53.7738 kg, and the cost of 4301.904 yuan is generated. The total cost is 9653.296 yuan. After the low-voltage switch cabinet is adopted, the length of the branch bar is 9.146 m, the copper bar material is 80*10, the copper bar weight is converted into 65.11952 kg, and the cost of 5209.5616 yuan is generated. The length of the main bus is 5.529 m, the copper bar material is 100*10, the copper bar weight is converted into 43.2081 kg, and the cost of 3936.648 yuan is generated. The total cost is 9146.2096 yuan. Compared with the conventional scheme, the structure of the utility model is simpler and can save more cost.

[0032] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model. Any equivalent structural transformation, direct / indirect application in other related technical fields based on the utility model concept and the contents of the utility model specification and drawings are included in the patent protection range of the utility model.

Claims

1. A low voltage switchgear, characterized in that The utility model relates to a circuit breaker cabinet, and belongs to the field of circuit breaker cabinet. The cabinet body, the circuit breaker and the main busbar are arranged in the cabinet body; the main busbar comprises an upper stake head main busbar and a lower stake head main busbar; the upper stake head main busbar is connected with the circuit breaker through a first connecting piece; and the lower stake head main busbar is connected with the circuit breaker through a second connecting piece.

2. A low voltage switchgear according to claim 1, characterized in that The upper stake head main busbar comprises a main busbar upper stake head A phase, a main busbar upper stake head B phase and a main busbar upper stake head C phase.

3. A low voltage switchgear according to claim 2, characterized in that The main busbar upper stake head A phase, the main busbar upper stake head B phase and the main busbar upper stake head C phase are arranged in parallel.

4. A low voltage switchgear according to claim 2, characterized in that The main busbar upper stake head A phase, the main busbar upper stake head B phase and the main busbar upper stake head C phase adopt a copper bar structure.

5. A low voltage switchgear according to claim 2, characterized in that The first connecting piece comprises a circuit breaker upper stake head A phase, a circuit breaker upper stake head B phase and a circuit breaker upper stake head C phase; the main busbar upper stake head A phase is connected with the circuit breaker through the circuit breaker upper stake head A phase; the main busbar upper stake head B phase is connected with the circuit breaker through the circuit breaker upper stake head B phase; and the main busbar upper stake head C phase is connected with the circuit breaker through the circuit breaker upper stake head C phase.

6. A low voltage switchgear according to any of claims 1-5, characterized in that The lower stake head main busbar comprises a main busbar lower stake head A phase, a main busbar lower stake head B phase and a main busbar lower stake head C phase.

7. A low voltage switchgear according to claim 6, characterized in that The main busbar lower stake head A phase, the main busbar lower stake head B phase and the main busbar lower stake head C phase are arranged in parallel.

8. A low voltage switchgear according to claim 6, characterized in that The main busbar lower stake head A phase, the main busbar lower stake head B phase and the main busbar lower stake head C phase adopt a copper bar structure.

9. A low voltage switchgear according to claim 6, characterized in that The second connecting piece comprises a circuit breaker lower stake head A phase, a circuit breaker lower stake head B phase and a circuit breaker lower stake head C phase; the main busbar lower stake head A phase is connected with the circuit breaker through the circuit breaker lower stake head A phase; the main busbar lower stake head B phase is connected with the circuit breaker through the circuit breaker lower stake head B phase; and the main busbar lower stake head C phase is connected with the circuit breaker through the circuit breaker lower stake head C phase.

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