CN205943750U - Anti -explosion capacitor's end cover structure - Google Patents

Abstract

The utility model discloses an anti -explosion capacitor's end cover structure belongs to anti -explosion capacitor technical field, establishing the end cover in electric vessel shell's nozzle department including the lid, setting up the support dish on the inboard face of end cover, the periphery wall of support dish evenly is equipped with two at least convex parts, and the convex part forms with electric vessel shell and supports by the laminating. Through addding two at least convex parts in interval on the periphery wall of condenser support dish, when inserting condenser support dish in the electric vessel shell, the convex part on the condenser support dish periphery wall supports with electric vessel shell and leans on, and so electric vessel shell's inner wall makes local slight emergence of electric vessel shell warp with the contact point atress of convex part, and in condenser support dish can very easyly insert electric vessel shell's drill way, assembling process was simple, has improved assembly efficiency.

Description

The end cover structure of noinductive capacitor

Technical field

The utility model is related to noinductive capacitor technical field, particularly to a kind of end cover structure of noinductive capacitor.

Background technology

Often there is explosion phenomenon in use in capacitor, accordingly, it would be desirable to prevent electricity by arranging blast resistance construction Container explodes, and an attic base is conventional building block in blast resistance construction, needs to support the use with capacitor casing.

In general, capacitor includes the housing of tubular and lid is located at the end cap of housing tube port position, positioned at the inner side of end cap Arrangement attic base on capping, an attic base is to determine in the position of capacitor within the chamber, and the both inner pad wiring quilt of capacitor It is fixed on an attic base, end cap will be led to outwards to swell deformation when capacitor internal produces the gas producing during fault, and now prop up Attic base had then both no deformed and non-displacement, thus capacitor both inner pad wiring and external wiring terminal between electrical connection shape It is in off state that state is destroyed, and failure gas stop producing, and then avoid the generation of capacitor explosion accident.

In prior art, the housing of tubular and end cap are thin-walled aluminium sheet and make, the especially nozzle shape of the housing of tubular Shape is difficult to keep, and the aperture circularity of such as cylindrical shell is difficult to keep, so prop up the peripheral profile of attic base and diameter dimension be by Theoretical value processing, so an attic base inserts the nozzle of housing so that when carrying out follow-up capping operation, prop up attic base or be difficult to Insert nozzle, or nozzle can be inserted but combine loosen easily come off, had a strong impact on working (machining) efficiency.

Utility model content

The purpose of this utility model is to provide a kind of end cover structure of noinductive capacitor, to solve electric capacity in prior art Device props up the low problem of efficiency of assembling and the degree of accuracy between attic base and tubular shell.

For realizing object above, the technical solution adopted in the utility model is：A kind of end cover structure of noinductive capacitor, bag Include the end cap that lid is located at the tube port position of capacitor casing, setting attic base in the inner side plate face of end cap, the periphery wall of an attic base is equal Even be provided with least two protuberances, protuberance and capacitor casing form against fitting.

Compared with prior art, there is following technique effect in the utility model：The utility model passes through in capacitor bearing On the periphery wall of disk, at least two protuberances are set up at interval, when capacitor is propped up in attic base insertion capacitor protector body, capacitor bearing Protuberance on disk periphery wall and capacitor casing are against the inwall of such capacitor casing makes electric capacity with the contact point stress of protuberance Device housing local slightly deforms, and capacitor props up attic base and can easily insert in the aperture of capacitor casing, assembles Journey is simple, improves efficiency of assembling.And an attic base and capacitor casing inwall, against constituting axial limiting cooperation, prop up attic base dress Be not in the phenomenon loosening or automatically upspringing after fitting in capacitor protector body, improve the degree of accuracy of assembling.

Brief description

Fig. 1 is the structural representation of the utility model use state；

Fig. 2 is perspective view of the present utility model；

Fig. 3 is structural representation of the present utility model.

Specific embodiment

With reference to Fig. 1 to Fig. 3, the utility model is described in further detail.

Refering to shown in Fig. 1 to Fig. 3, a kind of end cover structure of noinductive capacitor, it is located at the nozzle of capacitor casing 1 including lid The end cap 2 at place, setting attic base 10 in the inner side plate face of end cap 2, at least two protuberances that attic base 10 periphery wall is uniformly provided with 20, protuberance 20 and capacitor casing form against fitting.Wherein, capacitor casing 1 is usually the aluminum material system adopting thin-walled The housing of the tubular becoming, tube port position shape can suitably deform, and the capacitor casing nozzle shape in the present embodiment can because The importing of protuberance 20 and occur adaptability deformation that is to say, that capacitor casing can occur under the squeezing action of protuberance 20 local Deformation, therefore propping up attic base 10 can easily readily be assemblied in capacitor casing nozzle.And on attic base 10 periphery wall Protuberance 20 and capacitor casing inwall between against constitute axial limiting cooperation, with prevent bearing disk occur loosen or appliance for releasing single Play phenomenon.Improve the efficiency of attic base assembling and an accuracy.

Specifically, as shown in Figure 2 to Figure 3, protuberance 20 includes transition face 21 and binding face 22, and the size of transition face 21 is along electricity Container casing inner chamber is gradually increased to equivalently-sized with binding face 22 from bottom of chamber to opening direction, binding face 22 and capacitor Inner walls are against laminating.In the assembling process of an attic base 10, transition face 21 is introduced in capacitor protector body, due to transition face 21 is the inclined-plane that size is gradually increased from bottom of chamber to opening direction along capacitor protector intracoelomic cavity, and therefore propping up attic base 20 can be easy to In insertion capacitor protector body, the size of transition face 21 is gradually increasing to, the chi of binding face 22 equivalently-sized with binding face 22 Very little constant and prop up attic base 10 against composition of fitting with capacitor casing inwall axial limiting.The present embodiment passes through to set protuberance 20 It is set to transition face 21 and the form of binding face 22, ensureing that an attic base can also while easily can inserting capacitor casing Guarantee that an attic base 10 is reclined well with capacitor protector physical efficiency, prevent the attic base from occurring loosening phenomenon.

Specifically, the size of protuberance 20 in the present embodiment is equivalently-sized with the axial width of an attic base 10.So permissible Guarantee that an attic base 20 all abuts in capacitor protector body in the axial direction, prevent the capacitive liquid in capacitor protector body from leaking.

Specifically, it is uniformly provided with 2-5 protuberance 20 in the periphery wall of an attic base 10 in the present embodiment.By arranging 2-5 Protuberance, both can be that an attic base 10 is reclined well with capacitor protector physical efficiency, and save the material of an attic base again, decrease making Cost.

Specifically, the protuberance 20 in the present embodiment is projection or raised line shape.In actual applications, the concrete shape of protuberance 20 Specifically can be set according to the size of an attic base 10.Such as, when the size of an attic base 10 is less, protuberance 20 can be designed For raised line shape, when the size of an attic base 10 is larger, protuberance 20 can be designed as projection.

Claims (5)

1. a kind of end cover structure of noinductive capacitor, is located at the end cap (2) of the tube port position of capacitor casing (1) including lid, and it is special Levy and be：A setting attic base (10) in the inner side plate face of end cap (2), it is at least two convex that attic base (10) periphery wall is uniformly provided with Portion (20), protuberance (20) and capacitor casing form against fitting.

2. noinductive capacitor as claimed in claim 1 end cover structure it is characterised in that：Described protuberance (20) includes transition Face (21) and binding face (22), the size of transition face (21) along capacitor protector intracoelomic cavity be gradually increased from bottom of chamber to opening direction to Equivalently-sized with binding face (22), binding face (22) and capacitor casing inwall are against fitting.

3. noinductive capacitor as claimed in claim 1 end cover structure it is characterised in that：The described size of protuberance (20) with The axial width propping up attic base (10) is equivalently-sized.

4. noinductive capacitor as claimed in claim 1 end cover structure it is characterised in that：The periphery wall of described attic base (10) It is uniformly provided with 2-5 protuberance (20).

5. noinductive capacitor as claimed in claim 1 end cover structure it is characterised in that：Described protuberance (20) be projection or Raised line shape.