CN209496732U - A kind of impact partial pressure metalized film dry-type capacitor - Google Patents

Abstract

The utility model discloses a kind of impact partial pressure metalized film dry-type capacitors, including the insulation explosion-proof shell on the outside of capacitor body and capacitor body, the insulation explosion-proof shell successively includes flame-resistant insulation layer from the inside to the outside, ceramic fiber layer and breakage-proof parting, anti-explosion groove is provided on the inside of the flame-resistant insulation layer, the anti-explosion groove is stepped, and the bottom of anti-explosion groove is provided with the recess of triangle, the insulation explosion-proof shell of capacitor body successively includes flame-resistant insulation layer from the inside to the outside in the utility model, ceramic fiber layer and breakage-proof parting, so that the utility model is provided with fire-proof function under the premise of with insulation function, and still there is a situation where explode in view of the inside of capacitor body, anti-explosion groove is internally provided in capacitor body, reducing the fragmentation of insulation explosion-proof shell may, make capacitor body Using safer.

Description

A kind of impact partial pressure metalized film dry-type capacitor

Technical field

The utility model relates to a kind of capacitor, specifically a kind of impact partial pressure metalized film dry-type capacitor.

Background technique

Capacitor, usually referred to as its ability for accommodating charge is capacitor, is indicated with letter C.Definition 1: capacitor, Gu Mingsi Justice is the container of dress electricity, is a kind of device for accommodating charge.Capacitor be the electronic component that is largely used in electronic equipment it One, separated by direct communication, coupling, bypass, filtering, resonant tank, energy conversion and the control etc. being widely used in circuit. Define 2: capacitor all constitutes a capacitor between any two are insulated from each other and the conductor (including conducting wire) that is spaced closely together.

When capacitor is when high-pressure side works, if occurring phenomena such as fire outside capacitor, since capacitor itself protects Performance is very poor, and insulation crust is totally-enclosed form so that capacitor internal generates extremely more heats, the heat of capacitor without Method distributes in time, so that the temperature rise of capacitor internal can be higher and higher, it is existing very likely to occur explosion if temperature is excessively high As, therefore there are some potential safety problemss for existing capacitor.

Utility model content

The purpose of this utility model is to provide a kind of impact partial pressure metalized film dry-type capacitors, to solve above-mentioned back The problem of being proposed in scape technology.

To achieve the above object, the utility model provides the following technical solutions:

A kind of impact partial pressure metalized film dry-type capacitor, including exhausted on the outside of capacitor body and capacitor body Edge explosion-resistant enclosure, the insulation explosion-proof shell from the inside to the outside successively include flame-resistant insulation layer, ceramic fiber layer and breakage-proof parting, Anti-explosion groove is provided on the inside of the flame-resistant insulation layer, the anti-explosion groove is stepped, and the bottom of anti-explosion groove is provided with three Angular recess.

As a further solution of the present invention: being provided with rubber pad on the anti-explosion groove.

As a further solution of the present invention: being provided with bonding between the ceramic fiber layer and breakage-proof parting Agent.

As a further solution of the present invention: be arranged on the breakage-proof parting there are two the thermovent being oppositely arranged, Multi-disc radiating vane is provided in the thermovent.

As a further solution of the present invention: the upper and lower ends of the thermovent are provided with annular protrusion.

As a further solution of the present invention: the Embedding Material of the capacitor body is polyurethane and asphalt mixtures modified by epoxy resin Rouge.

Compared with prior art, the utility model has the beneficial effects that the insulation of capacitor body is anti-in the utility model Quick-fried shell includes successively from the inside to the outside flame-resistant insulation layer, ceramic fiber layer and breakage-proof parting, so that the utility model has It is provided with fire-proof function under the premise of insulation function, and considers inside capacitor body still there is a situation where exploding, in electricity Vessel is internally provided with anti-explosion groove, and insulation explosion-proof shell is affected by temperature expansion, since anti-explosion groove is step structure, So that insulation explosion-proof shell has certain expansion space, thus make insulation explosion-proof shell will not fragmentation easily, and then sputter It goes, causes security risk, on this basis.The recess of promising triangular structure is arranged in the bottom of anti-explosion groove, when recess expands, by In triangle be in hill-like structure reason so that the sharp corner of triangle is rushed to open, and along sharp corner outwardly against gap out, After the sharp corner of triangle is broken through aperture out, internal high temperature air-flow is released along aperture, to reduce internal temperature, effectively Avoid capacitor case entirety fragmentation.

Detailed description of the invention

Fig. 1 is a kind of schematic view of the front view for impacting partial pressure metalized film dry-type capacitor.

Fig. 2 is the overlooking structure diagram of insulation explosion-proof shell in the utility model.

Fig. 3 is the overall structure diagram of anti-explosion groove in the utility model.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Please refer to Fig. 1~3, in the utility model embodiment, a kind of impact partial pressure metalized film dry-type capacitor, including The insulation explosion-proof shell 2 in 1 outside of capacitor body 1 and capacitor body, the insulation explosion-proof shell 2 successively wrap from the inside to the outside Include flame-resistant insulation layer 3, ceramic fiber layer 4 and breakage-proof parting 5, the flame-resistant insulation layer choosing Nanometer environmental-protechalogen-free halogen-free fire-retardation insulation Material is since nanostructure is tightly compact, so that flame-resistant insulation layer has superior flame retardant property under the premise of insulation, nontoxic, peace The complete high advantage of performance, the material of the ceramic fiber layer 4 are inorganic ceramic fiber paper, and ceramic fibre have not only prevent fires but also Insulation, and itself is very thin, at low cost, the advantages that not taking up space, and the material of the breakage-proof parting 5 is preferably glassy metal steel steel Plate, so that the mechanical strength of capacitor body 1 itself is enough to cope with the different installation environment such as field or city electricity consumption, it is described The bonding for increasing ceramic fiber layer 4 and 5 fixed effect of breakage-proof parting is provided between ceramic fiber layer 4 and breakage-proof parting 5 Agent, the inside of the flame-resistant insulation layer 3 are provided with anti-explosion groove 6, and the anti-explosion groove 6 is stepped, and the bottom of anti-explosion groove 6 is set It is equipped with the recess 7 of triangle, being provided on the anti-explosion groove 6 reduces the rubber pad that impact generates damage to insulation explosion-proof shell 2 8。

Since insulation explosion-proof shell 2 is closed structure, the resistance inside capacitor body 1 generates pole during the work time More heats, the heat rest on inside capacitor body 1, so that security risk easily occurs for capacitor body 1, therefore anti- It is arranged on fragmentation layer 5 there are two the thermovent 9 that is oppositely arranged, is provided with multi-disc radiating vane 10 in the thermovent 9, passes through two A thermovent being oppositely arranged forms cross-ventilation, can conduct the heat generated inside capacitor body 1, make capacitor Temperature rise inside device ontology 1 is greatly lowered, and then capacitor internal and the external world is made to reach thermal balance.Greatly extend capacitor The inside Embedding Material of the service life of device, the capacitor body 1 is polyurethane, and the edge sealing of the capacitor body 1 passes through Epoxy resin is potted, to realize the oil-free encapsulating of capacitor body 1, go out thermovent 9 will not in radiation processes The phenomenon that existing oil liquid spills capacitor body 1.

In actual use, for more convenient capacitor body 1 of taking, the upper and lower ends of thermovent 9 are provided with convex annular Play 11.

In summary: the insulation explosion-proof shell 2 of capacitor body 1 successively includes insulation resistance from the inside to the outside in the utility model Layer 3, ceramic fiber layer 4 and breakage-proof parting 5 are fired, so that the utility model is provided with fire prevention under the premise of with insulation function Function, and consider inside capacitor body 1 still there is a situation where exploding, it is explosion-proof in being internally provided with for capacitor body 1 Slot 6, insulation explosion-proof shell 2 are affected by temperature expansion, since anti-explosion groove 6 is step structure, so that insulation explosion-proof shell 2 has Certain expansion space, thus make insulation explosion-proof shell 2 will not fragmentation easily, and then sputter away, cause security risk, herein On the basis of.The recess 7 of promising triangular structure is arranged in the bottom of anti-explosion groove 6, when recess 7 expands, since triangle is in ramped shaped Structure reason, so that the sharp corner of triangle is rushed to open, and along sharp corner outwardly against gap out, when the sharp corner of triangle After being broken through aperture out, internal high temperature air-flow is released along aperture, to reduce internal temperature, is effectively avoided outside capacitor Shell entirety fragmentation.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (6)

1. a kind of impact partial pressure metalized film dry-type capacitor, it is characterised in that: including capacitor body (1) and capacitor Insulation explosion-proof shell (2) on the outside of ontology (1), the insulation explosion-proof shell (2) successively include flame-resistant insulation layer from the inside to the outside (3), ceramic fiber layer (4) and breakage-proof parting (5) are provided with anti-explosion groove (6) on the inside of the flame-resistant insulation layer (3), described Anti-explosion groove (6) is stepped, and the bottom of anti-explosion groove (6) is provided with the recess (7) of triangle.

2. a kind of impact partial pressure metalized film dry-type capacitor according to claim 1, it is characterised in that: described explosion-proof Rubber pad (8) are provided on slot (6).

3. a kind of impact partial pressure metalized film dry-type capacitor according to claim 1, it is characterised in that: the ceramics Adhesive is provided between fibrous layer (4) and breakage-proof parting (5).

4. a kind of impact partial pressure metalized film dry-type capacitor according to claim 1, it is characterised in that: described breakage-proof It is arranged on parting (5) there are two the thermovent (9) being oppositely arranged, the thermovent (9) is interior to be provided with multi-disc radiating vane (10).

5. a kind of impact partial pressure metalized film dry-type capacitor according to claim 4, it is characterised in that: the heat dissipation The upper and lower ends of mouth (9) are provided with annular protrusion (11).

6. a kind of impact partial pressure metalized film dry-type capacitor according to claim 5, it is characterised in that: further include filling Seal the polyurethane and epoxy resin of capacitor body.