CN208834984U - High current temperature overheating protector - Google Patents

Abstract

The utility model relates to a kind of high current temperature overheating protectors, including shell and bracket inside the shell is set and the sealing element at shell aperture end is set, elastic insulation pieces are arranged in outer casing bottom, shell closes on open end and is provided with card-bit part, bracket is connected between elastic insulation pieces and card-bit part, bracket is equipped with static contact component and can contact with static contact component or isolated moving contact component, static contact component includes static contact and the static contact seat that connect with static contact, moving contact component includes the movable contact that moving contact attachment base is connected with by bimetal leaf element, static contact seat accommodates movable contact.After adopting the above structure, pass through the supporting structure with mounting groove and link slot, it can be convenient for the installation to static contact component and moving contact component, it is easily achieved maintenance and the integrated and modularization convenient for product, simultaneously, the surface-to-surface contact mode that static contact component and moving contact component use is able to solve moving contact and the drawbacks of static contact separates without reason.

Description

High current temperature overheating protector

Technical field

The utility model relates to thermal protector technical fields, and in particular to a kind of high current temperature overheating protector.

Background technique

Thermal protector is all sensitive device of a kind of pair of temperature and electric current, is there is thermal overload occasion caused by temperature and electric current Play control and protective effect.Thermal protector is widely used in motor, battery, medical apparatus, automobile, electric heater in modern household electrical appliances The temperature of tool and/or the control of electric current and protection also have extensively in the products such as intelligent appliance, the new-energy automobile of newly-developed It uses, is the more important protection element of master control components.

The movable contact spring and static contact of thermal protector are thermal protector core components, and existing movable contact spring and static contact are usually adopted With point-point contact mode, and in areas such as city, rural areas, there are the unstable of electric current and voltage, when electric current increases suddenly, The movable contact spring and static contact of thermal protector separate, and electric appliance stops working, and then judges by accident, have an impact to life and production, And existing thermal protector is small in size, when assembling, needs that sequentially different micro-elements is fitted into protector housing respectively, Since protector is often all smaller, bad operation passes through existing implanted assembly side additionally, due to movable contact spring all than relatively thin Formula, in an assembling process, movable contact spring are easy microbend deformation, cause contact pressure small, assembly error is big.

Utility model content

In order to overcome drawbacks described above, the utility model provides a kind of dynamic and static contact using surface-to-surface contact, passes through bracket The components such as integrated movable contact, are easily assembled, high current temperature overheating protector easy to repair using thermal protector.

The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of high current temperature overheating protector, Including shell and bracket inside the shell is set and the sealing element at shell aperture end is set, outer casing bottom setting is elastic insulated Part, shell close on open end and are provided with card-bit part, and bracket is connected between elastic insulation pieces and card-bit part, and bracket is equipped with stationary contact It head assembly and can be contacted with static contact component or isolated moving contact component, static contact component includes static contact and connects with static contact The static contact seat connect, moving contact component include the movable contact that moving contact attachment base is connected with by bimetal leaf element, and static contact seat is received Hold the movable contact.

In one preferred embodiment of the utility model, bracket is equipped with mounting groove, and mounting groove accommodates insulating part, top of support End is equipped with link slot, and link slot is connect with moving contact attachment base.

In one preferred embodiment of the utility model, insulating part is equipped between static contact component and bracket.

In one preferred embodiment of the utility model, movable contact is trapezoidal or triangular structure.

In one preferred embodiment of the utility model, shell is plated using engineering plastics integrated injection molding or by surface There is the metal material integrated punching molding of nickel, kirsite.

In one preferred embodiment of the utility model, sealing element is passed through by conducting wire and is connect with bracket and static contact.

In one preferred embodiment of the utility model, static contact is equipped with the groove of receiving fixing piece.

The beneficial effects of the utility model are: after adopting the above structure, by the supporting structure with mounting groove and link slot, It can be convenient for the installation to static contact component and moving contact component, it is easy to accomplish maintenance and the integrated and module convenient for product Change, meanwhile, the surface-to-surface contact mode that static contact component and moving contact component use is able to solve existing point-point contact bring The drawbacks of moving contact and static contact separate without reason guarantees the stability of thermal protector work, ensures life and produces continuous.

Detailed description of the invention

Fig. 1 is the utility model structure diagram；

Fig. 2 is supporting structure schematic diagram；

Fig. 3 is static contact and moving contact structure schematic diagram.

Specific embodiment

The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear Define.

A kind of high current temperature overheating protector as shown in Figure 1 to Figure 3, including shell 1 and the bracket being arranged in shell 1 2 and the sealing element 3 of 1 open end of shell is set, elastic insulation pieces 11 are arranged in 1 bottom of shell, and shell 1 closes on open end setting There is card-bit part 12, bracket 2 is connected between elastic insulation pieces 11 and card-bit part 12, and bracket 2 is equipped with static contact component and can be with Static contact component contact or isolated moving contact component, static contact component include static contact 21 and the stationary contact that connect with static contact 21 Seat 22, moving contact component include moving contact attachment base 23 and the movable contact 25 by the connection of bimetal leaf element 24, static contact seat 22 Accommodate movable contact 25.By integrating moving contact component and static contact component on bracket, the elasticity of bracket installation inside the housing is absolutely Between edge part and card-bit part, shell is sealed finally by sealing element.

Embodiment one: as depicted in figs. 1 and 2, bracket 2 is equipped with mounting groove 5, and mounting groove 5 accommodates insulating part 6, and bracket 2 pushes up End is equipped with link slot 7, and link slot 7 is connect with moving contact attachment base 23.By the mounting groove and link slot on bracket, convenient for quiet The installation of contact assembly and moving contact component, it is easy to accomplish maintenance and the integrated and modularization convenient for product.

Insulating part 6 is equipped between static contact component and bracket.Static contact component and moving contact group are realized by insulation assembly Part isolation, prevents from interfering with each other, and guarantees the stability of protector work.

Embodiment two: movable contact 25 as shown in Figure 3 is trapezoidal or triangular structure.Movable contact uses trapezoidal or triangle knot Structure design, can be realized movable contact and is to realize movable contact component and stationary contact by the way of contact of surface-to-surface when static contact seat contacts Electrical component contact, can effectively avoid increasing suddenly because of electric current, the separation of movable contact and static contact seat without reason guarantees the normal of electric appliance Work.

Shell 1 is coated with nickel using engineering plastics integrated injection molding or by surface, the metal material of kirsite integrally rushes It is molded.Shell is integrally formed by engineering plastics or metal material, and the leakproofness of interior of shell is obviously improved, can guarantee The stability of the part time job of interior of shell.

Sealing element 3 is passed through by conducting wire 8 and is connect with bracket 1 and static contact 21.By external conducting wire, convenient for thermal protector with The connection of electric appliance improves the convenient of connection.

Embodiment three: static contact 21 as shown in Figure 3 is equipped with the groove 4 of receiving fixing piece 9.By the setting of fixing piece, Can be fixed inside the housing by moving contact component, static contact component and bracket, the shaking of interior of shell part is prevented, is realized outer The fixation of shell inner body position guarantees the normal of thermal protector part time job.

Insulating part 6 is first placed on the mounting groove 5 of bracket, then the link slot 7 on 2 top of bracket passes through welding or screw Fixed form is connect with moving contact component, then, places static contact component on insulating part 6, by the dynamic touching in moving contact component First 25 contact with the static contact seat 22 in static contact component, and the bracket for assembling moving contact component and static contact component is integrally put into Inside shell 1, the elastic insulation pieces 11 inside shell 1 are squeezed, then bracket 2 is connected to the card-bit part 12 close to open end On, guarantee the stabilization of bracket, fixing piece 9 is mounted in the groove 4 of static contact, is connected by conducting wire and bracket 2 and static contact 21 It connects, finally, being sealed shell aperture by sealing element 3.It, can by integrating moving contact component and static contact component on bracket 2 Protector assembly difficulty is reduced, production efficiency is improved.

It is emphasized that: the above description is only the embodiments of the present invention, is not intended to limit the utility model The scope of the patents, equivalent structure or equivalent flow shift made by using the description of the utility model and the drawings, or it is straight It connects or is used in other related technical areas indirectly, be also included in the patent protection scope of the utility model.

Claims (7)

1. a kind of high current temperature overheating protector, it is characterised in that: including shell and bracket inside the shell is arranged and sets The sealing element at shell aperture end is set, elastic insulation pieces are arranged in the outer casing bottom, and shell closes on open end and is provided with card-bit part, The bracket is connected between elastic insulation pieces and card-bit part, and the bracket is equipped with static contact component and can be with static contact group Part contact or isolated moving contact component, the static contact component includes static contact and the static contact seat that connect with static contact, described Moving contact component includes the movable contact that moving contact attachment base is connected with by bimetal leaf element, and the static contact seat receiving is described dynamic Contact.

2. high current temperature overheating protector according to claim 1, it is characterised in that: the bracket is equipped with mounting groove, The mounting groove accommodates the insulating part, and the cantilever tip is equipped with link slot, and the link slot is connect with moving contact attachment base.

3. high current temperature overheating protector according to claim 1, it is characterised in that: the static contact component and bracket it Between be equipped with insulating part.

4. high current temperature overheating protector according to claim 1, it is characterised in that: the movable contact is trapezoidal or triangle Shape structure.

5. high current temperature overheating protector according to claim 1, it is characterised in that: the shell uses engineering plastics one Body injection molding or the metal material integrated punching molding that nickel, kirsite are coated with by surface.

6. high current temperature overheating protector according to claim 1, it is characterised in that: the sealing element is passed through by conducting wire It is connect with bracket and static contact.

7. high current temperature overheating protector according to claim 1, it is characterised in that: it is solid that the static contact is equipped with receiving Determine the groove of part.