Plug-in type wiring terminal of drawer type circuit breaker
A drawer-type circuit breaker and terminal block technology, applied in the direction of protective switch terminals/connections, etc., can solve problems such as unreliable contact, deformation of metal pins, and easy misalignment
Inactive Publication Date: 2012-04-25
JIANGSU KAIFAN ELECTRICAL APPLIANCES
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- Description
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Problems solved by technology
Since the metal pin and the connector in the connection hole require relatively high precision, misalignment and deformation of the metal pin are prone to occur during the insertion process, and the contact is unreliable.
Method used
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Embodiment Construction
[0015] Such as figure 1 , figure 2 , image 3 As shown, the plug-in terminal of the drawer type circuit breaker of the present invention includes at least one pair of sockets 3 and plugs 4 that are respectively arranged on the drawer base and the circuit breaker body; Shaped contact pieces 5, an insulating partition 6 is arranged between two pairs of contact pieces;
[0016] Such as Figure 4 , 5 As shown, the plug 4 is provided with two pairs of metal pins 7 matched with the contacts 5, and a slot 8 matched with the insulating partition 6 is opened between the two pairs of metal pins.
[0017] Through the above-mentioned structure, when the plug 4 is connected to the socket 3, the metal pin of the plug 4 contacts with the arched surface of the arched contact piece 5 on the socket. Since the arched structure has good elasticity, the contact part is guaranteed with sufficient contact pressure.
[0018] Such as Figure 5 As shown, the above-mentioned slot 8 is provided w...
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The invention belongs to the low-voltage power transmission equipment and relates to a plug-in type wiring terminal of a drawer type circuit breaker. The plug-in type wiring terminal comprises at least one pair of socket and plug which are mutually matched and are arranged on a drawer seat and a circuit breaker body respectively; the socket is provided with two pairs of contact pieces with arch-shaped sections, and an insulating partition is arranged between the two pairs of contact pieces; and the plug is provided with two pairs of metal needles which are matched with the contact pieces, and a slot matched with the insulating partition is arranged between the two pairs of metal needles. After the structure is adopted, reliable contact of the terminal in the plug-in process can be ensured, so that the requirement for the accuracy of manufacture and installation of products is reduced and the plugging reliability is improved. The whole sections of the metal needles are embedded in the lower wiring terminal, so that the deformation of the metal needles is effectively prevented. In the plug-in type wiring terminal, the requirement for the number of wiring terminals can be met in a compact space, and simultaneously the reliable insulation among all contact points is also ensured due to arrangement of the insulating partition. In addition, the plug-in structure is balanced in stressing, and the contact reliability is high.
Description
[0001] technical field [0002] The invention belongs to low-voltage power transmission equipment, and relates to a plug-in connection terminal for a drawer type circuit breaker. Background technique [0003] The circuit breaker is used to connect a certain range of internal circuits and external power supply circuits. Its function is equivalent to the main switch. For the convenience of maintenance and repair, drawer-type circuit breakers are commonly used at present. It generally includes two parts, a fixed drawer seat and a drawer-type circuit breaker. ontology. The circuit on the drawer seat is connected to the main circuit, and the circuit on the circuit breaker body is connected to the external circuit. In order to connect the main circuit and the external circuit, a general drawer type circuit breaker includes an upper terminal and a lower terminal. The upper terminal is installed on the body of the drawer seat and connected to the internal circuit, and the lower te...
Claims
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IPC IPC(8): H01H71/08
Inventor 张金泉韩云陈大江陶晓静
Owner JIANGSU KAIFAN ELECTRICAL APPLIANCES