CN-224232952-U - Low-voltage outlet cabinet grounding bar structure

Abstract

The utility model relates to a low-voltage outlet cabinet grounding bar structure which comprises at least one lower pile head copper bar and at least one U-shaped grounding bar, wherein the number of the U-shaped grounding bars is equal to that of the lower pile head copper bars, each U-shaped grounding bar is fixed on one lower pile head copper bar, a space is arranged between every two adjacent lower pile head copper bars, a space is also arranged between every two adjacent U-shaped grounding bars, a double-spliced cable bar is also fixed on each lower pile head copper bar, the lower pile head copper bars are fixedly arranged on a circuit breaker, and the circuit breaker is arranged on a circuit breaker mounting plate. The double-spliced cable row is provided with a plurality of cable access holes, the lower pile head copper row is provided with a plurality of cable inlet and outlet holes corresponding to the cable access holes, one cable access hole and one cable inlet and outlet hole form a group, and each group is arranged in parallel. The utility model adopts the U-shaped grounding row to ensure that the grounding is safer and the space is saved. The double-spliced cable connection mode is adopted, so that cable conductors are arranged in parallel, and the lengths of the two cables are ensured to be consistent.

Inventors

• WANG XIAOWEI
• ZHANG ZHENGSONG

Assignees

• 上海纳杰电气成套有限公司

Dates

Publication Date

20260512

Application Date

20250508

Claims (10)

1. 1. The low-voltage outlet cabinet grounding bar structure is characterized by comprising at least one lower pile head copper bar and at least one U-shaped grounding bar, wherein the number of the U-shaped grounding bars is equal to that of the lower pile head copper bars, and each U-shaped grounding bar is fixed on one lower pile head copper bar; When the number of the lower pile head copper bars and the U-shaped grounding bars is multiple, a space is arranged between the adjacent lower pile head copper bars, and a space is also arranged between the adjacent U-shaped grounding bars; The lower pile head copper bar is fixedly arranged on the circuit breaker, and the circuit breaker is arranged on the circuit breaker mounting plate.
2. 2. The low-voltage outlet cabinet grounding bar structure according to claim 1, wherein the interval range between the adjacent lower pile head copper bars is 2-5cm.
3. 3. The low-voltage outlet cabinet grounding bar structure according to claim 1, wherein the U-shaped grounding bar is fixed on the lower pile head copper bar in a screw fixing mode.
4. 4. The low-voltage outlet cabinet grounding row structure according to claim 1, wherein a plurality of cable receiving holes are formed in the double-spliced cable row, a plurality of cable inlet and outlet holes corresponding to the cable receiving holes are formed in the lower pile head copper row, and one cable receiving hole and one cable inlet and outlet hole are arranged in parallel.
5. 5. The low-voltage outlet cabinet grounding bar structure of claim 1, wherein the width of the lower pile head copper bar is larger than that of the U-shaped grounding bar.
6. 6. The low-voltage outlet cabinet grounding bar structure according to claim 1, wherein the lower pile head copper bar is fixedly arranged on the circuit breaker through an insulator.
7. 7. The low-voltage outlet cabinet grounding bar structure according to claim 1, wherein the lower pile head copper bar is an L-shaped copper bar, and the U-shaped grounding bar and the double-spliced cable bar are fixed at the same end of the L-shaped copper bar.
8. 8. A low-voltage outlet cabinet grounding bar structure according to any one of claims 1-7, wherein a lower pile head copper bar is integrally formed by bending a plate.
9. 9. A low-voltage outlet cabinet grounding bar structure according to any one of claims 1-7, wherein one U-shaped grounding bar is integrally formed by bending a plate.
10. 10. A low-voltage outlet cabinet grounding bar structure according to any one of claims 1-7, wherein a double-spliced cable row is integrally formed by bending a plate.

Description

Low-voltage outlet cabinet grounding bar structure Technical Field The utility model relates to a grounding bar structure, in particular to a low-voltage outlet cabinet grounding bar structure which is simple in structure, safer in grounding, more space-saving and capable of guaranteeing the consistent length of two cables. Background With the development of society, the electricity demand is continuously increased, and higher requirements are put on the power supply capacity and the stability of a power system. In the field of low-voltage power distribution, a low-voltage outlet cabinet is used as key equipment for power distribution, and the performance of the low-voltage outlet cabinet directly influences the operation quality of the whole power system. In many large buildings, industrial plants and electrical facilities, the power of the consumers is increasing, which requires a larger current transmission capacity. Conventional single cables have certain limitations in terms of current carrying capacity, and it is difficult to meet the increasing high current transmission requirements. The double-spliced cable effectively improves the current-carrying capacity by splicing the two cables together, and becomes an important means for solving the problem of large-current transmission. Meanwhile, electrical safety is always a major concern for operation of the power system. The grounding protection is a key measure for guaranteeing the safety of electrical equipment and personnel, and the grounding bars play a very important role. When electrical equipment fails such as leakage, the electric current can be rapidly introduced into the ground, so that personnel electric shock and equipment damage are avoided, and the occurrence probability of electrical accidents is reduced. Disclosure of utility model Aiming at the problems, the utility model mainly aims to provide the low-voltage outlet cabinet grounding row structure which has the advantages of simple structure, safer grounding, more space saving and consistent length of two cables. The low-voltage outlet cabinet grounding bar structure comprises at least one lower pile head copper bar and at least one U-shaped grounding bar, wherein the number of the U-shaped grounding bars is equal to that of the lower pile head copper bars, and each U-shaped grounding bar is fixed on one lower pile head copper bar. When the number of the lower pile head copper bars and the U-shaped grounding bars is multiple, an interval is arranged between the adjacent lower pile head copper bars, and an interval is also arranged between the adjacent U-shaped grounding bars. The lower pile head copper bar is fixedly arranged on the circuit breaker, and the circuit breaker is arranged on the circuit breaker mounting plate. In the concrete implementation example of the utility model, the interval between the adjacent lower pile head copper bars is 2-5cm. In the specific embodiment of the utility model, the U-shaped grounding bar is fixed on the lower pile head copper bar in a screw fixing mode. In a specific implementation example of the utility model, a plurality of cable connection holes are formed in the double-spliced cable row, a plurality of cable inlet and outlet holes corresponding to the cable connection holes are formed in the lower pile head copper row, and a group of cable connection holes and cable inlet and outlet holes are formed in one position, and each group is arranged in parallel. In the specific embodiment of the utility model, the width of the lower pile head copper bar is larger than that of the U-shaped grounding bar. In a specific embodiment of the utility model, the lower pile head copper bar is fixedly arranged on the circuit breaker through an insulator. In the concrete implementation example of the utility model, the lower pile head copper bar is an L-shaped copper bar, and the U-shaped grounding bar and the double-spliced cable bar are fixed at the same end of the L-shaped copper bar. In the specific embodiment of the utility model, a lower pile head copper bar is integrally formed by bending a plate. In the specific embodiment of the utility model, one U-shaped grounding row is integrally formed by bending a plate. In the specific embodiment of the utility model, one double-spliced cable row is integrally formed by bending a plate. The low-voltage outlet cabinet grounding bar structure has the positive progress effects that the U-shaped grounding bar is adopted, so that the grounding is safer, and the space is saved. The double-spliced cable connection mode is adopted, so that cable conductors are arranged in parallel, the arrangement mode enables the cables to have no cabling pitch, and the lengths of the two cables are ensured to be consistent. Drawings Fig. 1 is a schematic diagram of the overall structure of the present utility model. Fig. 2 is a partial enlarged view of fig. 1. The following are names corresponding to the reference numerals in the pres