CN106252168A

CN106252168A - A kind of chopper

Info

Publication number: CN106252168A
Application number: CN201610642615.3A
Authority: CN
Inventors: 李聪
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-08
Filing date: 2016-08-08
Publication date: 2016-12-21

Abstract

The open a kind of chopper of the present invention, including breaker body, described breaker body is provided with A, B, the joint of C tri-line, A static contact it is connected on described joint, B static contact and C static contact, described A static contact, B static contact and C static contact are connected with the first metal rack respectively, second metal rack, 3rd metal rack, described first metal rack, second metal rack, at least 3 electrical contacts with insulating base it are connected on 3rd metal rack, described A static contact, B static contact and C static contact are connected with switch enclosure respectively, described switch enclosure includes the first switching circuitry and second switch loop, described switch enclosure includes the first switch enclosure and second switch box；This chopper can effectively utilize the confined space, reduces potential safety hazard, and prevents the adjacent lines in switch enclosure to be short-circuited or scaling loss.

Description

A kind of chopper

Technical field

Present invention relates particularly to a kind of chopper.

Background technology

Chopper (English name: circuit-breaker, circuit breaker) refers to close, carry and open Electric current under disconnected normal loop condition the electric current that can close, carry within the time of regulation and cut-off under exception loop condition Switching device.Chopper is divided into primary cut-out and low-voltage circuit breaker by its range, and high-low pressure identification of boundaries is fuzzyyer, Typically by the referred to as High-Voltage Electrical Appliances of more than 3kV.

Chopper can be used to distribute electric energy, infrequently starts asynchronous motor, carries out power circuit and motor etc. Protection, when there are serious overloads or the fault such as short-circuit and under-voltage in them can automatic shutdown circuit, its function is equivalent to melt Disconnected device formula switch and the combination crossing underheat relay etc..And typically need not change parts after disjunction fault current.Mesh Before, obtain a wide range of applications.

At present, like product on market is a kind of is traditional chopper, and this chopper is three-phase four-wire system chopper, its In A, B, C tri-line be respectively necessary for being connected with multiple components and parts, and A, B, C tri-line respectively only one of which outfan, need from A, B, C tri-the outfan of line connect electric wire respectively, multiple electrical contact of then connecting on electric wire, so, A, B, C tri-line connect respectively Electric wire add multiple electrical contact and seem crowded in the limited space of Shell of circuit breaker, and also short-circuit risks, very Dangerous, and two switching circuitry hypotelorisms of existing switch enclosure, the adjacent lines being easily caused in switch enclosure is short-circuited Or scaling loss.

Summary of the invention

For overcoming the problems of the prior art, the invention provides one and can effectively utilize the confined space, reduce safety Hidden danger, and prevent the adjacent lines in switch enclosure to be short-circuited or the chopper of scaling loss.

Technology and method in order to solve the employing of the above-mentioned problem present invention are as follows:

A kind of chopper, including breaker body, described breaker body is provided with A, B, C tri-joint of line, described in connect Being connected to A static contact, B static contact and C static contact on Tou, described A static contact, B static contact and C static contact are connected with respectively One metal rack, the second metal rack, the 3rd metal rack, described first metal rack, the second metal rack, the 3rd metal prop up Being connected at least 3 electrical contacts with insulating base on frame, described A static contact, B static contact and C static contact connect respectively Have switch enclosure, described switch enclosure to include the first switching circuitry and second switch loop, described switch enclosure include the first switch enclosure and Second switch box, described first switching circuitry is arranged in described first switch enclosure, and described second switch loop is arranged on described In second switch box, interlocking connection between described first switching circuitry and described second switch loop.

Further, described electrical contact comprises money base, rustless steel based material and nickel material, rustless steel based material and nickel material Being scattered in money base, the weight portion of money base is 30 parts-99 parts, and the weight portion of rustless steel based material is 0.01 part to 35 parts nickel material Material, the weight portion of nickel material is 0.01 part to 35 parts, and described stainless steel material is selected from ferrite, austenite, martensitic One of which or its combination in any.

Further, electrical interlocks between described first switching circuitry and described second switch loop.

Further, mechanical interlocked between described first switching circuitry and described second switch loop.

Further, described insulating base is immediately adjacent to each other and word order.

Further, described first metal rack, the second metal rack, the 3rd metal rack press tandem arrangement.

Further, described ferrite include C:0.003～0.015 part, Si:0.05～0.30 part, Mn:0.10～ 0.35 part, below P:0.06 part, below S:0.02 part, Cr:17.0～19.0 parts, Ni: more than 0.10 part and less than 0.30 part, Ti:0.10～0.40 part, Nb:0.005 part are less than 0.050 part, Mo: less than 0.20 part, N:0.005～0.015 part, Cu:0.30～0.50 part, Mg: less than 0.0005 part；

Further, during described austenite includes Nb≤0.30 part and V≤0.40 part one or both, C≤ 0.02 part, Si:0.01 part～0.50 part, Mn:0.01 part～2.0 parts, Cr:24 part～26 parts, Ni:19 part～22 parts, Mo: be more than 0.10 part and less than 0.50 part and N: more than 0.04 part and less than or equal to 0.15 part.

Further, described martensitic includes below C:0.001～0.01 part, SI:0.5 part, MN:0.1～3.0 Part, below P:0.04 part, below S:0.01 part, CR:10～15 parts, NI:4～8 parts, MO:2.8～5.0 parts, AL:0.001～ 0.10 part, below N:0.07 part, TI:0～0.25 part, V:0～0.25 part, NB:0～0.25 part, ZR:0～0.25 part, CU:0～ 1.0 parts, CA:0～0.005 part, MG:0～0.005 part, LA:0～0.005 part, CE:0～0.005 part.

The invention have the benefit that by support by A, B, C tri-wire terminal be dispersed into multiple electrical contact, proper alignment Electrical contact makes to be connected wires the most rationally, and short-circuit risks is substantially reduced, it addition, the bending structure on metal rack makes full use of The confined space in chopper, can increase more electrical contact to connect more components and parts；First switching circuitry and second Switching circuitry is separately positioned in the first switch enclosure and second switch box.Increase the first switching circuitry and second that high frequency uses Distance between switching circuitry, it is to avoid the first switching circuitry and second switch loop closely and easily produce the asking of electric arc because of distance Topic, and then avoid short circuit phenomenon and the phenomenon of switch enclosure scaling loss that electric arc causes.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of chopper of the present invention.

Detailed description of the invention

Below in conjunction with embodiment, the present invention is described in further detail with accompanying drawing, but they are not to skill of the present invention The restriction of art scheme, based on present invention teach that any conversion made, all falls within protection scope of the present invention.

Refering to shown in 1, a kind of chopper, including breaker body, described breaker body is provided with A, B, C tri-the connecing of line Head, described joint is connected to A static contact 1, B static contact 2 and C static contact 3, and described A static contact 1, B static contact 2 and C are quiet Contact 3 is connected with first metal rack the 4, second metal rack the 4, the 3rd metal rack 5, described first metal rack 4, second respectively At least 3 electrical contacts 7 with insulating base 8, described A static contact it is connected on metal rack the 5, the 3rd metal rack 6 1, B static contact 2 and C static contact 3 is connected with switch enclosure 9 respectively, and described switch enclosure 9 includes that the first switching circuitry 10 and second switch return Road 11, described switch enclosure 9 includes that the first switch enclosure 12 and second switch box 13, described first switching circuitry 10 are arranged on described In one switch enclosure 12, described second switch loop 11 is arranged in described second switch box 13, described first switching circuitry 10 He Interlocking connection between described second switch loop 11, described electrical contact 7 comprises money base, rustless steel based material and nickel material, stainless Steel based material and nickel material are scattered in money base, and the weight portion of money base is 30 parts-99 parts, and the weight portion of rustless steel based material is 0.01 part to 35 parts nickel material, the weight portion of nickel material is 0.01 part to 35 parts, and described stainless steel material is selected from ferrite, Austria Family name's system, martensitic one of which or its combination in any.

Electrical interlocks between described first switching circuitry 10 and described second switch loop 11.

Between described first switching circuitry 10 and described second switch loop 11 mechanical interlocked.

Described insulating base 8 is immediately adjacent to each other and word order.

Described first metal rack the 4, second metal rack the 5, the 3rd metal rack 6 presses tandem arrangement.

Described ferrite includes C:0.003～0.015 part, Si:0.05～0.30 part, Mn:0.10～0.35 part, P: Less than 0.06 part, below S:0.02 part, Cr:17.0～19.0 parts, Ni: more than 0.10 part and less than 0.30 part, Ti:0.10～ 0.40 part, Nb:0.005 part is less than 0.050 part, Mo: less than 0.20 part, N:0.005～0.015 part, Cu:0.30～ 0.50 part, Mg: less than 0.0005 part；

Described austenite include in Nb≤0.30 part and V≤0.40 part one or both, C≤0.02 part, Si: 0.01 part～0.50 part, Mn:0.01 part～2.0 parts, Cr:24 part～26 parts, Ni:19 part～22 parts, Mo: more than 0.10 part and little In 0.50 part and N: more than 0.04 part and less than or equal to 0.15 part.

Described martensitic includes below C:0.001～0.01 part, SI:0.5 part, MN:0.1～3.0 parts, P:0.04 part Below, below S:0.01 part, CR:10～15 parts, NI:4～8 parts, MO:2.8～5.0 parts, AL:0.001～0.10 part, N:0.07 Part following, TI:0～0.25 part, V:0～0.25 part, NB:0～0.25 part, ZR:0～0.25 part, CU:0～1.0 parts, CA:0～ 0.005 part, MG:0～0.005 part, LA:0～0.005 part, CE:0～0.005 part.

Wherein, first metal rack the 4, second metal rack the 5, the 3rd metal rack 6 uses following method to make:

1) metallic plate providing a thickness to be 0.3-2.0mm；

2) preset anelectrode, negative electrode and lead pattern on a metal plate, wherein anelectrode, negative electrode and lead pattern with Consistent in the chopper of the application；

3) anticorrosive is used to cover above-mentioned default anelectrode, negative electrode and lead pattern, wherein anticorrosive For vinyl and acrylic acid according to the mixing material of 2:1 ratio, anticorrosive uses the mode being completely covered to lay；

4) method of etching or mould punching is used to remove the gold beyond default anelectrode, negative electrode and lead pattern Belong to material, form the metal rack with anelectrode, negative electrode and lead-in wire.

Experimental example:

The electrical contact of the chopper of the present invention and existing electrical contact are compared test.

Embodiment	Density (g/cm³)	Hardness (HB)	Electrical conductivity (IACS)
				Embodiment 1	8.43	86	92.4%
Embodiment 2	8.67	84	86.4%
				Embodiment 3	8.69	91	87.9%
Existing electrical contact	8.84	58	79.4%

As can be seen here, the electrical contact of the present invention, compared to existing electrical contact, has lower density, more preferable hardness, And more preferably electrical conductivity.

The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any The change expected without creative work or replacement, all should contain within protection scope of the present invention, therefore, and the present invention's Protection domain should be as the criterion with the protection domain that claims are limited.

Claims

1. a chopper, it is characterised in that: include that breaker body, described breaker body are provided with A, B, C tri-the connecing of line Head, described joint is connected to A static contact, B static contact and C static contact, described A static contact, B static contact and C static contact Be connected with the first metal rack, the second metal rack, the 3rd metal rack respectively, described first metal rack, the second metal rack, Being connected at least 3 electrical contacts with insulating base on 3rd metal rack, described A static contact, B static contact and C are quiet Contact is connected with switch enclosure respectively, and described switch enclosure includes the first switching circuitry and second switch loop, and described switch enclosure includes One switch enclosure and second switch box, described first switching circuitry is arranged in described first switch enclosure, described second switch loop It is arranged in described second switch box, interlocking connection between described first switching circuitry and described second switch loop.

Electrical contact the most according to claim 1, it is characterised in that: described electrical contact comprise money base, rustless steel based material and Nickel material, it is 30 parts-99 parts that rustless steel based material and nickel material are scattered in the weight portion of money base in money base, rustless steel based material Weight portion is 0.01 part to 35 parts nickel material, and the weight portion of nickel material is 0.01 part to 35 parts, described stainless steel material chosen from Fe Ferritic system, austenite, martensitic one of which or its combination in any.

Chopper the most according to claim 1, it is characterised in that: described first switching circuitry and described second switch loop Between electrical interlocks.

Chopper the most according to claim 1, it is characterised in that: described first switching circuitry and described second switch loop Between mechanical interlocked.

Chopper the most according to claim 1, it is characterised in that: described insulating base is immediately adjacent to each other and word order.

Chopper the most according to claim 1, it is characterised in that: described first metal rack, the second metal rack, the 3rd Metal rack presses tandem arrangement.

Chopper the most according to claim 1, it is characterised in that: described ferrite includes C:0.003～0.015 Part, below Si:0.05～0.30 part, Mn:0.10～0.35 part, P:0.06 part, below S:0.02 part, Cr:17.0～19.0 parts, Ni: more than 0.10 part and less than 0.30 part, Ti:0.10～0.40 part, Nb:0.005 part less than 0.050 part, Mo: be less than 0.20 part, N:0.005～0.015 part, Cu:0.30～0.50 part, Mg: less than 0.0005 part.

Chopper the most according to claim 1, it is characterised in that: described austenite include Nb≤0.30 part and V≤ In 0.40 part one or both, C≤0.02 part, Si:0.01 part～0.50 part, Mn:0.01 part～2.0 parts, Cr:24 part～26 Part, Ni:19 part～22 parts, Mo: more than 0.10 part and less than 0.50 part and N: more than 0.04 part and less than or equal to 0.15 part.

Chopper the most according to claim 1, it is characterised in that: described martensitic include C:0.001～0.01 part, Below SI:0.5 part, MN:0.1～3.0 parts, below P:0.04 part, below S:0.01 part, CR:10～15 parts, NI:4～8 parts, Below MO:2.8～5.0 parts, AL:0.001～0.10 part, N:0.07 part, TI:0～0.25 part, V:0～0.25 part, NB:0～ 0.25 part, ZR:0～0.25 part, CU:0～1.0 parts, CA:0～0.005 part, MG:0～0.005 part, LA:0～0.005 part, CE: 0～0.005 part.