CN208225825U

CN208225825U - Normally-open normally-close breaker

Info

Publication number: CN208225825U
Application number: CN201820175667.9U
Authority: CN
Inventors: 覃政友
Original assignee: ZHEJIANG ZUBOO ELECTRIC VEHICLE CO Ltd
Current assignee: ZHEJIANG ZUBOO ELECTRIC VEHICLE CO Ltd
Priority date: 2018-02-01
Filing date: 2018-02-01
Publication date: 2018-12-11
Anticipated expiration: 2028-02-01

Abstract

The utility model devises a kind of normally-open normally-close breaker, including normally opened layer shell, normally closed layer shell and upper cover, design has switch knob, spring, operating mechanism, lock, total electric coil, negative pole end on normally opened layer shell, switch knob is connect with operating mechanism by linkage structure, connection design has plastic fastening and tripping on operating mechanism, design has normally opened moving contact and normally closed moving contact on plastic fastening, and normally closed moving contact, which is located at negative pole end connection design above normally opened moving contact, metal connecting sheet；Design has positive terminal, arc-extinguish chamber and adjusting screw on normally closed layer shell, and positive terminal connection design has metal connecting sheet, the metal connecting sheet connection that arc-extinguish chamber is connect with positive terminal；Controller power source may be implemented when for electric product charging in breaker structure design, and by the switching of switch knob, anode is disconnected, cuts off main line controller power source, effectively avoids that the fire hazard that short circuit causes occurs when charging.

Description

Normally-open normally-close breaker

Technical field

The utility model relates to breaker technical field more particularly to a kind of normally-open normally-close breakers.

Background technique

With the continuous enhancing of environmentally protective consciousness, the use of green energy product also more and more frequently, such as electric vehicle, makes Having inevitable work with electric vehicle is exactly to charge to electric vehicle, and the event that fire occurs for electric vehicle charging in recent years is frequent Occur, basic reason is exactly that the component fever in charging process on electric vehicle main line leads to short-circuit fire, existing electronic Automobile-used breaker switches switch knob in electric vehicle charging process when being that breaker is in different conditions, main line controller electricity Source is cut off the power when route is overloaded to switch motion still in energized state, depending on the size of overload current, when reaction There is length between although, may cause electrical appliance damage, lead to short circuit event；In addition to electronic, on other electric products There is similar hidden danger.

Utility model content

In order to overcome the problems, such as to point out in the prior art, the utility model devises a kind of normally-open normally-close breaker, this is disconnected Controller power source may be implemented when charging to electric product in device structure design in road, by the switching of switch knob, anode is disconnected It opens, cuts off main line controller power source, effectively avoid that the fire hazard that short circuit causes occurs when charging.

To achieve the goals above, the technical solution adopted in the utility model is as follows:

Normally-open normally-close breaker, including normally opened layer shell, normally closed layer shell and upper cover, design has limit on normally opened layer shell Structure, on normally closed layer shell design have with the matched clamping structure of position limiting structure, design has switch knob, bullet on normally opened layer shell Spring, operating mechanism, lock, total electric coil, negative pole end, switch knob are connect with operating mechanism by linkage structure, operating mechanism Upper connection design has plastic fastening and tripping, and design has normally opened moving contact and normally closed moving contact on plastic fastening, normally closed dynamic Contact, which is located at negative pole end connection design above normally opened moving contact, metal connecting sheet；Design has positive terminal, goes out on normally closed layer shell Arc cover and adjusting screw, positive terminal connection design have metal connecting sheet, the metal connecting sheet connection that arc-extinguish chamber is connect with positive terminal, Normally closed layer shell is connected by designing with the matched clamping structure of position limiting structure and normally opened layer shell, normally opened layer shell With normally closed layer shell snap-fit it is good after upper cover covered, product is fixedly connected by rivet.

Metal connecting sheet and the design of normally opened moving contact contact position have silver point, can prevent product from making using structure design Lead to normally opened movable contact spring and normally opened static contact poor contact with overlong time, influences product effect.

The silver point is designed on metal connecting sheet by spot welding.

The utility model has the beneficial effects that by using the normally-open normally-close breaker of said structure design, handle combined floodgate is Anode is powered, electric product normal use when combined floodgate, and normally-open normally-close breaker has overload short circuit, function of seismic resistance, effective protection electricity Gas product；Handle separating brake is that cathode is powered, cathode be powered can the charging of bio-occlusion electric product, short circuit will not be caused in charging process Equal bad errors, anode power-off, controller power source disconnect, and entire electric product is kept without electricity；The resultant metal connection sheet simultaneously The silver point structure of upper design can effectively ensure that the contact conductive effect of the normally opened moving contact of product with cathode end position, extend product Stable service life.

Detailed description of the invention

Fig. 1 is the utility model breaker negative pole end schematic diagram of a layer structure；

Fig. 2 is the utility model breaker positive terminal schematic diagram of a layer structure；

In figure: 1, normally opened layer shell；2, normally closed layer shell；3, switch knob；4, spring；5, operating mechanism；6, tripping；7, Lock；8, total electric coil；9, negative pole end；10, positive terminal；11, normally opened moving contact；12, normally closed moving contact；13, plastic fastening； 14, metal connecting sheet；15, silver point；16, arc-extinguish chamber；17, adjusting screw；18, linkage structure.

Specific embodiment

As illustrated in fig. 1 and 2, normally-open normally-close breaker, including normally opened layer shell 1, normally closed layer shell 2 and upper cover, normally opened layer Design has position limiting structure on shell 1, and designing on normally closed layer shell 2 has and the matched clamping structure of position limiting structure, normally opened layer shell 1 Upper design has switch knob 3, spring 4, operating mechanism 5, lock 7, total electric coil 8, negative pole end 9, switch knob 3 and operating mechanism 2 are connected by linkage structure 18, and connection design has plastic fastening 13 and tripping 6 on operating mechanism 5, are set on plastic fastening 13 In respect of normally opened moving contact 11 and normally closed moving contact 12, normally closed moving contact 12 is located at normally opened 11 top of moving contact, and normally opened stationary contact, 11 connect Connecing design has metal connecting sheet 14；Design has positive terminal 10, arc-extinguish chamber 16 and adjusting screw 17, positive terminal on normally closed layer shell 2 12 connection designs have metal connecting sheet 14, and the metal connecting sheet 14 that arc-extinguish chamber 16 is connect with positive terminal 12 connects, normally closed layer shell 2 It is connected by designing with the matched clamping structure of position limiting structure and normally opened layer shell 1, normally opened layer shell 1 and normally closed layer Upper cover is covered after 2 snap-fit of shell is good, is fixedly connected with product by rivet.

Metal connecting sheet 14 and the design of normally opened 11 contact position of moving contact have silver point 15, and the silver point 15 is designed by spot welding On metal connecting sheet 14.

The corresponding views of upper cover are not provided in attached drawing 1,2 because the structure of upper cover be only with normally opened layer shell with it is normally closed Matching connection structure after layer shell occlusion, can intuitively be known very much by normally opened layer shell and the expression of normally closed layer shell structure The design of road superstructure, especially this product is circuit breaker, and those skilled in the art can be described by above structure The technical solution of the utility model may be implemented；The total electric coil 8 of the component occurred in Fig. 2, normally closed moving contact 12, plastic fastening 13 be in order to preferably express the connection relationship between normally closed 2 component of layer shell and normally opened 1 upper-part of layer shell, total electric coil 8, Normally closed moving contact 12, plastic fastening 13 are all connected with design on normally opened layer shell 1, do not have on normally closed layer shell 2.

Finally it is to be understood that above-mentioned specific embodiment is only a specific embodiment of technical solutions of the utility model, Can not be as the foundation for limiting the utility model claims protection scope, any technical solution without inventive improvements is equal Belong to the claimed range of technical solutions of the utility model.

Claims

1. normally-open normally-close breaker, including normally opened layer shell, normally closed layer shell and upper cover, it is characterised in that: the normally opened layer shell Design has switch knob, spring, operating mechanism, lock, total electric coil, negative pole end on body, and switch knob passes through with operating mechanism Linkage structure connects, and connection design has plastic fastening and tripping on operating mechanism, and design has normally opened dynamic touching on plastic fastening Head and normally closed moving contact, normally closed moving contact, which is located at negative pole end connection design above normally opened moving contact, metal connecting sheet；Normally closed layer Design has positive terminal, arc-extinguish chamber and adjusting screw on shell, and positive terminal connection design has metal connecting sheet, arc-extinguish chamber and positive terminal The metal connecting sheet of connection connects.

2. normally-open normally-close breaker according to claim 1, it is characterised in that: design has limit on the normally opened layer shell Structure, design, which has, on normally closed layer shell passes through design and position limiting structure with the matched clamping structure of position limiting structure, normally closed layer shell Matched clamping structure and normally opened layer shell are connected, normally opened layer shell and the good general later of normally closed layer shell snap-fit Upper cover covers, and is fixedly connected with product by rivet.

3. normally-open normally-close breaker according to claim 1, it is characterised in that: metal connecting sheet is contacted with normally opened moving contact Position Design has silver point.

4. normally-open normally-close breaker according to claim 3, it is characterised in that: the silver point is designed by spot welding in metal In connection sheet.