Ring Main Unit
A technology of ring network cabinet and cabinet, applied in the field of ring network cabinet, can solve problems such as unstable electrical connection, and achieve the effect of stable electrical connection
Active Publication Date: 2021-06-04
ZHEJIANG KANGGE ELECTRIC CO LTD
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The circuit breaker used in the existing ring network cabinet has the following problems: the copper guide piece and the guide rod are fixed by one-way bolt tightening, once the bolt is loose, the problem of unstable electrical connection is likely to occur
Method used
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Embodiment Construction
[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0036] Such as figure 1 with figure 2 As shown, a ring network cabinet includes a cabinet body 1 and a circuit breaker 2 located in the cabinet body 1, and the circuit breaker 2 performs the function of opening and closing the circuit.
[0037] Such as figure 2 As shown, the circuit breaker 2 includes a support frame 3, an arc extinguishing chamber 4 installed on the frame, and an operating mechanism 5 for controlling on-off.
[0038] Such as figure 2 As shown, the support frame 3 includes two insulating support plates 6 that are vertically parallel and separated by a certain distance, and the same side of the two insulating support plates 6 is connected by a connecting plate 7 that is perpendicular to the two insulating support plates 6. The lower sides of the support plates 6 are connected by a lower support plate 8 . A mounting plate 9 is installed...
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The invention relates to the technical field of power distribution cabinets, in particular to a ring network cabinet. A ring network cabinet, including a cabinet body and a circuit breaker located in the cabinet, the circuit breaker includes a support frame, an arc extinguishing chamber installed on the support frame, and an operating mechanism for controlling on-off circuit, the lower end of the arc extinguishing chamber is fixed There is a copper sleeve, and the lower end of the copper sleeve is integrally formed with a first abutment ring with a diameter larger than the copper sleeve. The copper sleeve is inserted with an insertion rod whose upper end is connected with the moving contact. The diameter of the insertion rod is the same as that of the copper sleeve. The inner diameters are equal, the second abutment ring is formed on the position below the first abutment ring on the insertion rod, the lower copper bar is worn on the position above the second abutment ring on the insertion rod, and the lower copper bar and the second abutment ring are formed on the insertion rod. The position between the two abutment rings is sleeved with a first powerful spring. Under the action of the first strong spring, the copper bar is pressed upwards to abut against the first abutment ring, so that the copper bar and the first abutment ring are closely abutted, and the electrical connection is stable.
Description
technical field [0001] The invention relates to the technical field of power distribution cabinets, in particular to a ring network cabinet. Background technique [0002] The ring network cabinet is a group of electrical equipment for transmission and distribution that is installed in a metal or non-metal insulated cabinet or made into an assembled interval ring network power supply unit. Its core part uses load switches and fuses. It has simple structure, small size, It has the advantages of low price, improved power supply parameters and performance, and power supply security. It is widely used in distribution stations and box-type substations of load centers such as urban residential quarters, high-rise buildings, large public buildings, factories and enterprises. [0003] The circuit breaker is used as a switch in the ring network cabinet. The circuit breaker refers to a switch that can close, carry and break the current under normal circuit conditions and can close, ca...
Claims
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IPC IPC(8): H01H33/42H02B1/30
CPCH01H33/42H02B1/30
Inventor 王夏方施振中龙涛施雷震
Owner ZHEJIANG KANGGE ELECTRIC CO LTD