CN212810080U - Aluminum electrolytic capacitor with directional explosion-proof device - Google Patents
Aluminum electrolytic capacitor with directional explosion-proof device Download PDFInfo
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- CN212810080U CN212810080U CN202021891370.6U CN202021891370U CN212810080U CN 212810080 U CN212810080 U CN 212810080U CN 202021891370 U CN202021891370 U CN 202021891370U CN 212810080 U CN212810080 U CN 212810080U
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Abstract
The utility model discloses an aluminum electrolytic capacitor with a directional explosion-proof device, which comprises an aluminum shell with a sealing cover and a core cladding arranged in the aluminum shell; an explosion-proof shell for wrapping the core cladding is arranged in the aluminum shell; an explosion-proof groove is arranged in the end surface of the explosion-proof shell, which is contacted with the inner bottom surface of the aluminum shell, in a sunken manner; the outside surface that explosion-proof shell is close to the aluminum hull bottom is equipped with the restrictor ring, and this restrictor ring is equipped with the backward flow groove towards one side of aluminum hull bottom surface, the surface that explosion-proof shell is located the backward flow groove top is equipped with the drainage groove, be equipped with the pressure release piece that leads to the groove in area between explosion-proof shell and the aluminum hull bottom surface, the outside surface cover that explosion-proof shell is located the restrictor ring below is equipped with the sealing ring of pasting tight aluminum hull, the utility model discloses can avoid the short circuit problem that causes on the electrolyte flows to the circuit board, improve the security that the condenser used.
Description
Technical Field
The utility model relates to an aluminum electrolytic capacitor technical field especially relates to an aluminum electrolytic capacitor with directional explosion-proof equipment.
Background
In recent years, the integration and high-speed processing technology of electronic components has been developed at a high speed, the high-frequency technology of communication products and the miniaturization and high-performance technology of mobile products have been continuously improved, the electronic information technology is changing day by day, the update speed of digital electronic products is getting faster and faster, higher requirements are put on the technical performance of capacitor products, particularly more and more requirements are put on aluminum electrolytic capacitors applied to the fields of electronic energy-saving lamps, electronic power supply circuits, delivery vehicles and the like, and the development trend of the aluminum electrolytic capacitors is 'small size, large capacity, long service life, high temperature resistance, low impedance and explosion prevention', therefore, the growth of the capacitor industry is driven, the aluminum electrolytic capacitor is a general electrolytic capacitor which is made of aluminum materials and has good electrical property, wide application range and high reliability, and the aluminum electrolytic capacitor is always a common choice of a power supply due to the characteristic of low cost.
Along with the increasingly harsh service environment of the aluminum electrolytic capacitor, the safety performance of the capacitor is required to be higher, but the traditional capacitor is not high in safety, electrolyte generated during slurry explosion of the electrolytic capacitor flows to a circuit board which is electrified, the problem of short circuit of the circuit board is caused, and even personal injury is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the technical problem existing in the prior art to a certain extent, provides an aluminum electrolytic capacitor with a directional explosion-proof device, can avoid the short circuit problem that the electrolyte flows to the circuit board and causes, and improves the safety of capacitor use.
The utility model provides a technical scheme that its technical problem adopted is: the aluminum electrolytic capacitor with the directional explosion-proof device comprises an aluminum shell with a sealing cover and a core package arranged in the aluminum shell; an explosion-proof shell for wrapping the core cladding is arranged in the aluminum shell; an explosion-proof groove is arranged in the end surface of the explosion-proof shell, which is contacted with the inner bottom surface of the aluminum shell, in a sunken manner; the explosion-proof shell is close to the outside surface of aluminum hull bottom and is equipped with the restrictor ring, and this restrictor ring is equipped with the backward flow groove towards one side of aluminum hull bottom surface, the surface that explosion-proof shell is located the backward flow groove top is equipped with the drainage groove, be equipped with the pressure release piece that leads to the groove in area between explosion-proof shell and the aluminum hull bottom surface, the outside surface cover that explosion-proof shell is located the restrictor ring below is equipped with the sealing ring of pasting tight aluminum hull.
The utility model discloses in the embodiment in the aluminum hull be equipped with the explosion-proof shell of parcel core package, can intercept electrolyte and store in the explosion-proof shell through the explosion-proof shell, the outside surface that the explosion-proof shell is close to the aluminum hull bottom is equipped with the current-limiting ring simultaneously, the current-limiting ring blocks up the clearance between explosion-proof shell and the aluminum hull, electrolyte direct flow on the circuit board when avoiding electric capacity to explode the thick liquid, further can directionally collect electrolyte through the backward flow groove on the current-limiting ring, further reduce the risk that electrolyte flows on the circuit board, simultaneously the drainage groove on the explosion-proof shell plays the guide effect, electrolyte direction on the explosion-proof shell outer wall flows into the backward flow groove on the current-limiting ring, the pressure in the container that can quick discharge through the pressure release piece that sets up in the twinkling of a moment of capacitor explosion thick liquid, avoid the too big scope that will splash and jet out the backward flow groove, simultaneously the sealing ring can fill the clearance between explosion, the anti-explosion shell is stably assembled in the aluminum shell, and the sealing ring can absorb a small amount of electrolyte flowing out of the reflow tank, so that electrolytic pressure is prevented from flowing onto the circuit board, and the use safety of the capacitor is improved.
In some preferred embodiments, the explosion-proof groove extends radially around the axis and has a depth gradually decreasing. In this way, the generated force acts on the explosion-proof housing uniformly.
In certain preferred embodiments, the thickness of the explosion-proof groove of the explosion-proof shell at the axis position is half of the wall thickness of the explosion-proof shell. Therefore, the center of the explosion-proof shell can be cracked first, and the integral deformation of the explosion-proof shell is avoided.
In some preferred embodiments, the cross section of the backflow groove is trapezoidal, and the long side of the backflow groove is arranged on the end face of the explosion-proof shell. Therefore, the backflow groove has a guiding function, and the electrolyte in the backflow groove is prevented from flowing out.
In certain preferred embodiments, the outer surface of the explosion-proof shell is distributed with salient points in an array manner. So, the bump can offset with the sealing ring, improves the stability of sealing ring assembly.
In certain preferred embodiments, the explosion-proof housing is made of an aluminum material. So, the aluminium material is convenient for machine-shaping, and aluminium itself has intensity moreover and can play certain explosion-proof effect.
Compared with the prior art, the beneficial effects are that: the utility model discloses in the embodiment in the aluminum hull be equipped with the explosion-proof shell of parcel core package, can intercept electrolyte and store in the explosion-proof shell through the explosion-proof shell, the outside surface that the explosion-proof shell is close to the aluminum hull bottom is equipped with the current-limiting ring simultaneously, the current-limiting ring blocks up the clearance between explosion-proof shell and the aluminum hull, electrolyte direct flow on the circuit board when avoiding electric capacity to explode the thick liquid, further can directionally collect electrolyte through the backward flow groove on the current-limiting ring, further reduce the risk that electrolyte flows on the circuit board, simultaneously the drainage groove on the explosion-proof shell plays the guide effect, electrolyte direction on the explosion-proof shell outer wall flows into the backward flow groove on the current-limiting ring, the pressure in the container that can quick discharge through the pressure release piece that sets up in the twinkling of a moment of capacitor explosion thick liquid, avoid the too big scope that will splash and jet out the backward flow groove, simultaneously the sealing ring can fill the clearance between explosion, the anti-explosion shell is stably assembled in the aluminum shell, and the sealing ring can absorb a small amount of electrolyte flowing out of the reflow tank, so that electrolytic pressure is prevented from flowing onto the circuit board, and the use safety of the capacitor is improved.
While additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is an exploded view of an aluminum electrolytic capacitor according to the present invention;
FIG. 2 is a cross-sectional view of an aluminum electrolytic capacitor according to the present invention;
fig. 3 is a structural diagram of the explosion-proof case of the present invention.
Description of the drawings: 1. an aluminum shell; 2. a core package; 3. an explosion-proof shell; 4. an explosion-proof groove; 5. a flow-limiting ring; 6. a reflux tank; 7. a drainage groove; 8. releasing the pressure block; 9. a seal ring; 10. and (4) bumps.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
In the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the utility model can be understood in specific cases to those of ordinary skill in the art.
The utility model discloses at the concrete implementation as follows: an aluminum electrolytic capacitor with a directional explosion-proof device as shown in fig. 1-3 comprises an aluminum shell 1 with a sealing cover and a core package 2 arranged in the aluminum shell 1; an explosion-proof shell 3 wrapping the core cladding 2 is arranged in the aluminum shell 1; the end surface of the explosion-proof shell 3, which is contacted with the inner bottom surface of the aluminum shell 1, is provided with an explosion-proof groove 4 in a sunken way, the explosion-proof groove 4 radially extends to the periphery by taking the axial lead as the center, and the depth is gradually reduced, so that the generated force is uniformly applied to the explosion-proof shell 3; the outside surface that explosion-proof shell 3 is close to 1 bottom of aluminum hull is equipped with restrictor ring 5, and this restrictor ring 5 is equipped with backward flow groove 6 towards one side of 1 bottom surface of aluminum hull, and the surface that explosion-proof shell 3 is located the 6 tops of backward flow groove is equipped with drainage groove 7, is equipped with the pressure release piece 8 that the groove was led to in the area between explosion-proof shell 3 and the 1 bottom surface of aluminum hull, and the outside surface cover that explosion-proof shell 3 is located restrictor ring 5 below is equipped with the sealing ring 9 of pasting tight aluminum hull 1.
In the embodiment of the utility model, the anti-explosion shell 3 of the wrapping core cladding 2 is arranged in the aluminum shell 1, the electrolyte can be intercepted by the anti-explosion shell 3 and stored in the anti-explosion shell 3, meanwhile, the outer side surface of the anti-explosion shell 3, which is close to the bottom of the aluminum shell 1, is provided with the flow-limiting ring 5, the flow-limiting ring 5 blocks the gap between the anti-explosion shell 3 and the aluminum shell 1, the electrolyte is prevented from directly flowing onto the circuit board when the capacitor is subjected to slurry explosion, the electrolyte can be further directionally collected by the backflow groove 6 on the flow-limiting ring 5, the risk that the electrolyte flows onto the circuit board is further reduced, meanwhile, the drainage groove 7 on the anti-explosion shell 3 plays a guiding role, the electrolyte on the outer wall of the anti-explosion shell 3 is guided to flow into the backflow groove 6 on the flow-limiting ring 5, the pressure in the discharge container can be rapidly discharged through the pressure release block 8 arranged at the moment of the, meanwhile, the sealing ring 9 can fill the gap between the explosion-proof shell 3 and the aluminum shell 1, so that the explosion-proof shell 3 is stably assembled in the aluminum shell 1, and the sealing ring 9 can also absorb a small amount of electrolyte flowing out of the backflow groove 6, so that the electrolytic pressure is prevented from flowing onto a circuit board, and the use safety of the capacitor is improved.
In the present embodiment, the thickness of the explosion-proof groove 4 of the explosion-proof housing 3 at the axis position is half of the wall thickness of the explosion-proof housing 3. So, explosion-proof shell 3 central point puts and can split earlier, avoids explosion-proof shell 3 whole deformation.
In the present embodiment, the cross section of the return groove 6 is trapezoidal, and the long side thereof is provided on the end surface of the explosion-proof case 3. Thus, the reflux groove 6 has a guiding function, and the electrolyte in the groove is prevented from flowing out.
In the embodiment, the salient points 10 are distributed on the outer surface of the explosion-proof shell 3 in an array manner. Thus, the bump 10 abuts against the seal ring 9, and the stability of the assembly of the seal ring 9 is improved.
In this embodiment, the explosion proof housing is made of an aluminum material. So, the aluminium material is convenient for machine-shaping, and aluminium itself has intensity moreover and can play certain explosion-proof effect.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. An aluminum electrolytic capacitor with a directional explosion-proof device is characterized in that: comprises an aluminum shell with a sealing cover and a core bag arranged in the aluminum shell; an explosion-proof shell for wrapping the core cladding is arranged in the aluminum shell; an explosion-proof groove is arranged in the end surface of the explosion-proof shell, which is contacted with the inner bottom surface of the aluminum shell, in a sunken manner; the explosion-proof shell is close to the outside surface of aluminum hull bottom and is equipped with the restrictor ring, and this restrictor ring is equipped with the backward flow groove towards one side of aluminum hull bottom surface, the surface that explosion-proof shell is located the backward flow groove top is equipped with the drainage groove, be equipped with the pressure release piece that leads to the groove in area between explosion-proof shell and the aluminum hull bottom surface, the outside surface cover that explosion-proof shell is located the restrictor ring below is equipped with the sealing ring of pasting tight aluminum hull.
2. An aluminum electrolytic capacitor with a directional explosion protection device as set forth in claim 1, wherein: the explosion-proof groove takes the axial lead as the center and extends radially to the periphery and the depth is gradually reduced.
3. An aluminum electrolytic capacitor with a directional explosion protection device as set forth in claim 1, wherein: the thickness of the explosion-proof groove of the explosion-proof shell at the axis position is half of the wall thickness of the explosion-proof shell.
4. An aluminum electrolytic capacitor with a directional explosion protection device as set forth in claim 1, wherein: the cross section of the backflow groove is trapezoidal, and the long edge of the backflow groove is arranged on the end face of the explosion-proof shell.
5. An aluminum electrolytic capacitor with a directional explosion protection device as set forth in claim 1, wherein: salient points are distributed on the outer surface of the explosion-proof shell in an array mode.
6. An aluminum electrolytic capacitor with a directional explosion protection device as set forth in claim 1, wherein: the explosion-proof shell is made of aluminum materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021891370.6U CN212810080U (en) | 2020-09-02 | 2020-09-02 | Aluminum electrolytic capacitor with directional explosion-proof device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021891370.6U CN212810080U (en) | 2020-09-02 | 2020-09-02 | Aluminum electrolytic capacitor with directional explosion-proof device |
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| CN212810080U true CN212810080U (en) | 2021-03-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113363077A (en) * | 2021-08-10 | 2021-09-07 | 南通江海储能技术有限公司 | Large-scale safe explosion-proof aluminum electrolytic capacitor |
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- 2020-09-02 CN CN202021891370.6U patent/CN212810080U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113363077A (en) * | 2021-08-10 | 2021-09-07 | 南通江海储能技术有限公司 | Large-scale safe explosion-proof aluminum electrolytic capacitor |
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