Wiring frame structure, wiring terminal and low-voltage electric appliance

A terminal block and terminal frame technology, applied in the direction of circuits, electric switches, electrical components, etc., can solve the problems of product temperature rise, poor reliability, and contact resistance increase

Pending Publication Date: 2021-05-11
浙江天正智能电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problems in the prior art that the inner wall and/or bottom wall of the connection frame of the connection terminal adopt a smooth design, and the reliability is poor. When the wire is electrified and heated, the connection terminal ...

Method used

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  • Wiring frame structure, wiring terminal and low-voltage electric appliance
  • Wiring frame structure, wiring terminal and low-voltage electric appliance
  • Wiring frame structure, wiring terminal and low-voltage electric appliance

Examples

Experimental program
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Effect test

Embodiment 1

[0045] The wiring frame structure of this embodiment, see Figure 1 to Figure 4 As shown, the wiring frame 1 is included, and the wiring frame 1 is a frame structure surrounded by a top edge 12, two side edges 11 and a bottom edge 13, and has a wiring cavity for wires to pass through and be fixed therein. Specifically, it also includes at least one avoidance structure 2 disposed on the inner wall of at least one side 11 facing away from the wiring cavity, and the avoidance structure 2 is suitable for providing avoidance space for the expansion of the wire when the wire fixed in the wiring cavity is energized and heated. . Through the setting of the avoidance structure 2, when the wire is heated and expanded, the wire can be squeezed into the avoidance structure, and at the same time, the contact area between the wire and the wiring frame is increased, the contact resistance is reduced, and the wire, especially the aluminum wire, can be reduced. After the alternating work of h...

Embodiment 2

[0051] For the connection terminal of this embodiment, see Figure 1 to Figure 4 As shown, it includes a wiring frame 1, a wiring board 5 and a wiring screw 6. The junction frame 1 is the junction frame structure of the first embodiment, and the top edge 12 is provided with an avoidance hole 14 . Wiring board 5 is movably arranged in the wiring cavity. The terminal screw 6 is threadedly connected in the avoidance hole 14 and pressed against the terminal board 5. When the terminal screw 6 rotates, it drives the terminal frame 1 to move relative to the terminal board 5 in the axial direction perpendicular to the terminal cavity, so as to compress or loosen Wires that pass through the wiring cavity. Specifically, such as figure 1 As shown, when the terminal screw 6 rotates, it drives the terminal frame 1 to press on the wire when it moves vertically upwards, and loosens the wire when it moves vertically downward.

[0052] Preferably, one end of the wiring board 5 facing away ...

Embodiment 3

[0058] The low-voltage electrical appliance of this embodiment, such as Figure 1 to Figure 4 As shown, the connection terminal of embodiment 2 is included.

[0059] Since the connecting terminal of Embodiment 2 is used, at least the advantages of the junction frame structure of Embodiment 1 are also provided, and details will not be repeated here.

[0060] Optionally, the low-voltage electrical appliances in this embodiment may be switches, circuit breakers, fuses, contactors, relays and so on. Preferably, the low-voltage electrical appliance in this embodiment is a circuit breaker.

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Abstract

The invention relates to the technical field of low-voltage electric appliances, in particular to a wiring frame structure, a wiring terminal and a low-voltage electric appliance. The wiring frame structure comprises a wiring frame, the wiring frame is a frame body structure which is enclosed by a top edge, two side edges and a bottom edge and is internally provided with a wiring cavity for a wire to pass through and be fixed; the wiring frame structure also comprises at least one avoiding structure arranged on the inner wall of at least one side edge and sinks away from the wiring cavity, and the avoiding structure is suitable for providing an avoiding space for expansion of the wire when the wire fixed in the wiring cavity is electrified and heated. Through the arrangement of the avoiding structure, when the wire is heated to expand, the wire can be extruded into the avoiding structure, attenuation of locking force is reduced, meanwhile, the contact area of the wire and the wiring board is increased, contact resistance is reduced, temperature rise at the wiring position of a product can be reduced. The problem of over-high temperature rise caused by easy loosening of wires of an existing wiring frame structure due to thermal expansion is solved.

Description

technical field [0001] The invention belongs to the technical field of low-voltage electrical appliances, and in particular relates to a junction frame structure, a connecting terminal and a low-voltage electrical appliance. Background technique [0002] The circuit breaker is an important part of the electrical industry and has been widely used. When the electrical circuit is working normally, the circuit breaker can achieve functions such as power failure, power supply and conversion circuit by closing or disconnecting the circuit that supplies electric energy; When abnormalities such as overload and short circuit occur in the circuit, the circuit breaker will trip to cut off the electrical circuit, so as to avoid endangering the safety of workers and the normal operation of equipment due to circuit failure. [0003] Terminal blocks play the role of fixing and connecting electrical connecting wires or bus bars in circuit breakers. Existing wiring terminals usually include...

Claims

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Application Information

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IPC IPC(8): H01H1/58
CPCH01H1/58H01H1/5855
Inventor 黄佳陈悦妍潘畅赵应龙
Owner 浙江天正智能电器有限公司
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