CN209843508U - Aluminum electrolytic capacitor with directional explosion-proof device - Google Patents
Aluminum electrolytic capacitor with directional explosion-proof device Download PDFInfo
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- CN209843508U CN209843508U CN201920802752.8U CN201920802752U CN209843508U CN 209843508 U CN209843508 U CN 209843508U CN 201920802752 U CN201920802752 U CN 201920802752U CN 209843508 U CN209843508 U CN 209843508U
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Abstract
An aluminum electrolytic capacitor with a directional explosion-proof device comprises a core bag, a shell and a directional explosion-proof sleeve, wherein the core bag is arranged in the shell in a sealing manner, an explosion-proof valve is arranged at the bottom end of the shell, the directional explosion-proof sleeve is sleeved at the tail end of the shell and covers the explosion-proof valve completely, and a gap is preset between the directional explosion-proof sleeve and the bottom of the shell. The utility model discloses a condenser is at explosion-proof valve outside newly-increased directional explosion-proof sleeve before the sleeve pipe, and electrolyte will be all received by the sleeve when aluminium electrolysis is opened the valve like this, can not let the electrolyte spout to the circuit board on, can open a weeping hole at telescopic arbitrary assigned direction, and electrolyte will flow along our appointed direction like this, reduces the influence to the circuit board.
Description
Technical Field
The utility model relates to an aluminum electrolytic capacitor especially relates to an aluminum electrolytic capacitor with directional explosion-proof equipment, and it can reduce the influence when the explosion-proof valve of condenser opens the valve.
Background
The aluminum electrolytic capacitor has more and more severe use environment, has higher requirements on the safety performance of aluminum electrolytic use, has limited service life, and has the requirement of reducing the influence of failure on products to the minimum in the use process.
In order to solve the problem that the sparking voltage of the electrolyte can be reduced along with the rise of the temperature when the aluminum electrolytic capacitor is opened, the directional explosion-proof device is added on the aluminum electrolytic capacitor, so that the electrolyte is prevented from leaking onto the circuit board when the aluminum electrolytic capacitor is opened, and the aluminum electrolytic capacitor can adapt to a harsher use environment.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide one kind and can prevent that when condenser explosion-proof valve opened the valve, the electrolyte flows to and causes the circuit board to flash of fire on the circuit board aluminium electrolytic capacitor who has directional explosion-proof equipment.
In order to solve the technical problem, the utility model provides a technical scheme does: the aluminum electrolytic capacitor with the directional explosion-proof device comprises a core bag, a shell and a directional explosion-proof sleeve, wherein the core bag is arranged in the shell in a sealing mode, an explosion-proof valve is arranged at the bottom end of the shell, the directional explosion-proof sleeve is sleeved at the tail end of the shell and covers the explosion-proof valve completely, and a gap is preset between the directional explosion-proof sleeve and the bottom of the shell.
In the utility model, when the explosion-proof valve at the bottom of the aluminum electrolytic capacitor is opened due to short circuit or other reasons, and the electrolyte flows out or is sprayed out, the electrolyte is intercepted and left in the directional explosion-proof sleeve under the action of the directional explosion-proof sleeve, and then flows to the appointed direction along the opening arranged on the directional explosion-proof sleeve; of course, very few of the part flows down the outer wall of the capacitor case, but the part does not flow onto the circuit board because of its small amount.
Preferably, the directional explosion-proof sleeve is a sleeve-shaped structure made of aluminum, and the directional explosion-proof sleeve is tightly connected with the housing through a beam waist.
The utility model discloses in, directional explosion-proof sleeve can be the cover tubular structure that has the aluminium to make and form, and metallic aluminum is because it has good ductility, so can extrude the shell of directional explosion-proof sleeve and condenser together and form beam waist, so both can with directional explosion-proof sleeve fixed connection on the shell, the beam waist of shell also can form the fixed action to the core package simultaneously to make the anti-seismic performance of condenser obtain improving.
In the above aluminum electrolytic capacitor with the directional explosion-proof device, preferably, the opening is provided at a preset position on a side surface or a bottom surface of the directional explosion-proof sleeve. When the explosion-proof valve at the bottom of the aluminum electrolytic capacitor is opened, the electrolyte flowing out of the shell of the aluminum electrolytic capacitor can flow out along the direction of the opening of the directional explosion-proof sleeve, so that the electrolyte flows out along the specified direction, and the influence on the circuit board is reduced.
Preferably, the directional explosion-proof sleeve is a sleeve-shaped structure made of PET, PE or PP material, and the directional explosion-proof sleeve is connected with the housing through glue sealing or interference fit.
In the above aluminum electrolytic capacitor with the directional explosion-proof device, preferably, the opening is provided at a preset position on a side surface or a bottom surface of the directional explosion-proof sleeve.
In the aluminum electrolytic capacitor with the directional explosion-proof device, preferably, the surfaces of the housing and the directional explosion-proof sleeve are coated with the capacitor sleeve, and one end of the capacitor sleeve extends to the bottom end of the directional explosion-proof sleeve.
Compared with the prior art, the utility model has the advantages of: the utility model discloses a condenser is at explosion-proof valve outside newly-increased directional explosion-proof sleeve before the sleeve pipe, and electrolyte will be all received by the sleeve when aluminium electrolysis is opened the valve like this, can not let the electrolyte spout to the circuit board on, can open a weeping hole at telescopic arbitrary assigned direction, and electrolyte will flow along our appointed direction like this, reduces the influence to the circuit board.
Drawings
Fig. 1 is a schematic structural diagram of an aluminum electrolytic capacitor with a directional explosion-proof device in example 1.
Fig. 2 is a schematic view of an assembly structure of the aluminum electrolytic capacitor with the directional explosion-proof device in example 1.
Fig. 3 is a schematic structural diagram of an aluminum electrolytic capacitor with a directional explosion-proof device in example 2.
Description of the figures
1. A core package; 2. a housing; 3. a directional explosion-proof sleeve; 4. an explosion-proof valve; 5. and (4) girdling.
Detailed Description
To facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below.
It should be particularly noted that when an element is referred to as being "fixed to, connected to or communicated with" another element, it can be directly fixed to, connected to or communicated with the other element or indirectly fixed to, connected to or communicated with the other element through other intermediate connecting components.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Example 1
The aluminum electrolytic capacitor with the directional explosion-proof device as shown in fig. 1 and fig. 2 comprises a core bag 11, a housing 2 and a directional explosion-proof sleeve 3, wherein the core bag 11 is hermetically arranged in the housing 2, an explosion-proof valve 4 is arranged at the bottom end of the housing 2, the directional explosion-proof sleeve 3 is sleeved at the tail end of the housing 2 and completely covers the explosion-proof valve 4, and a gap is preset between the directional explosion-proof sleeve 3 and the bottom of the housing 2.
In this embodiment, the directional explosion-proof sleeve 3 is a sleeve-shaped structure made of aluminum metal, and the directional explosion-proof sleeve 3 and the housing 2 are tightly connected through a beam waist 5. The side surface or the bottom surface of the directional explosion-proof sleeve 3 is provided with an opening at a preset position. In the embodiment, when the explosion-proof valve 4 at the bottom of the aluminum electrolytic capacitor is opened due to short circuit or other reasons, and the electrolyte flows out or is sprayed out, the electrolyte is intercepted and remained in the directional explosion-proof sleeve 3 under the action of the directional explosion-proof sleeve 3, and then flows to a specified direction along an opening arranged on the directional explosion-proof sleeve 3; of course, a very small portion flows down the outer wall of the capacitor case 2, but does not flow up the wiring board because of its small amount.
In this embodiment, the directional explosion-proof sleeve 3 is made of metal aluminum, one is that the housing 2 of the aluminum electrolytic capacitor is generally made of metal aluminum, when a circle of girdling 5 is formed at the side edges of the bottoms of the directional explosion-proof sleeve 3 and the housing 2, due to the consistency of materials, the directional explosion-proof sleeve 3 can be firmly fixed on the housing 2 after the girdling 5 is formed, and the situation that the directional explosion-proof sleeve 3 is disjointed from the housing 2 cannot occur. Because the beam waist 5 is formed by extrusion molding, the metal can have certain rebound after molding, and if the rebound deformation of the shell 2 of the aluminum electrolytic capacitor is smaller than that of the directional explosion-proof sleeve 3, the phenomenon that the shell 2 is disjointed with the directional explosion-proof sleeve 3 can occur. In the embodiment, the directional explosion-proof sleeve 3 and the shell 2 of the aluminum electrolytic capacitor are both made of metal aluminum, so that the phenomenon of disjointing can not occur.
In the embodiment, because the directional explosion-proof sleeve 3 is fixed on the shell 2 of the aluminum electrolytic capacitor by adopting the girdling 5 mode, after the girdling 5 is formed at the bottom of the shell 2, the core bag 1 in the shell 2 of the aluminum electrolytic capacitor can be fixed, and after the core bag 1 is fixed on the shell 2, a certain anti-vibration effect can be achieved.
In this embodiment, the surfaces of the housing 2 and the directional explosion-proof sleeve 3 are covered with a capacitor sleeve, and one end of the capacitor sleeve extends to the bottom end of the directional explosion-proof sleeve 3.
The directional explosion-proof sleeve is additionally arranged on the outer side of the explosion-proof valve 4 before the sleeve of the capacitor in the embodiment, so that electrolyte can be completely received by the sleeve when the valve is opened by aluminum electrolysis, the electrolyte cannot be sprayed onto a circuit board, a liquid leakage hole can be formed in any one specified direction of the sleeve, the electrolyte can flow out along the specified direction, and the influence on the circuit board is reduced.
Example 2
As shown in fig. 3, the aluminum electrolytic capacitor with the directional explosion-proof device comprises a core bag 11, a housing 2 and a directional explosion-proof sleeve 3, wherein the core bag 11 is hermetically arranged in the housing 2, an explosion-proof valve 4 is arranged at the bottom end of the housing 2, the directional explosion-proof sleeve 3 is sleeved at the tail end of the housing 2 and completely covers the explosion-proof valve 4, and a gap is preset between the directional explosion-proof sleeve 3 and the bottom of the housing 2.
In this embodiment, the directional explosion-proof sleeve 3 is a sleeve-shaped structure made of PET, PE or PP material, and the directional explosion-proof sleeve 3 and the housing 2 are connected in a sealing manner or in an interference fit manner through epoxy resin glue.
In the embodiment, the directional explosion-proof sleeve 3 is directly fixed at the bottom of the shell 2 of the aluminum electrolytic capacitor through the epoxy resin glue, so that the operation is very simple, meanwhile, the directional explosion-proof sleeve 3 is made of PET, PE or PP materials and is made of nonmetal, the effect of the epoxy resin glue on the directional explosion-proof sleeve is good, and the directional explosion-proof device can be tightly bonded on the shell 2 of the aluminum electrolytic capacitor.
In this embodiment, the side surface or the bottom surface of the directional explosion-proof sleeve 3 is provided with an opening at a predetermined position.
In this embodiment, the surfaces of the housing 2 and the directional explosion-proof sleeve 3 are covered with a capacitor sleeve, and one end of the capacitor sleeve extends to the bottom end of the directional explosion-proof sleeve 3.
Claims (6)
1. An aluminum electrolytic capacitor with a directional explosion-proof device is characterized in that: the explosion-proof device comprises a core bag, a shell and a directional explosion-proof sleeve, wherein the core bag is arranged in the shell in a sealing manner, an explosion-proof valve is arranged at the bottom end of the shell, the directional explosion-proof sleeve is sleeved at the tail end of the shell and covers the explosion-proof valve completely, and a gap is preset between the directional explosion-proof sleeve and the bottom of the shell.
2. The aluminum electrolytic capacitor with directional explosion protection apparatus according to claim 1, wherein: the directional explosion-proof sleeve is of a sleeve-shaped structure made of aluminum metal, and the directional explosion-proof sleeve is tightly connected with the shell through a beam waist.
3. The aluminum electrolytic capacitor with the directional explosion-proof device as recited in claim 2, wherein: an opening is formed in a preset position of the side face or the bottom face of the directional explosion-proof sleeve.
4. The aluminum electrolytic capacitor with directional explosion protection apparatus according to claim 1, wherein: the directional explosion-proof sleeve is of a sleeve-shaped structure made of PET, PE or PP materials, and is connected with the shell in a sealing mode through glue or in an interference fit mode.
5. The aluminum electrolytic capacitor with directional explosion protection device of claim 4, wherein: an opening is formed in a preset position of the side face or the bottom face of the directional explosion-proof sleeve.
6. An aluminum electrolytic capacitor with directional explosion protection apparatus according to any one of claims 1 to 5, wherein: the surfaces of the shell and the directional explosion-proof sleeve are coated with a capacitor sleeve, and one end of the capacitor sleeve extends to the bottom end of the directional explosion-proof sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920802752.8U CN209843508U (en) | 2019-05-30 | 2019-05-30 | Aluminum electrolytic capacitor with directional explosion-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920802752.8U CN209843508U (en) | 2019-05-30 | 2019-05-30 | Aluminum electrolytic capacitor with directional explosion-proof device |
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| CN209843508U true CN209843508U (en) | 2019-12-24 |
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| CN201920802752.8U Active CN209843508U (en) | 2019-05-30 | 2019-05-30 | Aluminum electrolytic capacitor with directional explosion-proof device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114765094A (en) * | 2021-01-14 | 2022-07-19 | 丰宾电子（深圳）有限公司 | Integrated safety explosion-proof capacitor |
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2019
- 2019-05-30 CN CN201920802752.8U patent/CN209843508U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114765094A (en) * | 2021-01-14 | 2022-07-19 | 丰宾电子（深圳）有限公司 | Integrated safety explosion-proof capacitor |
| CN114765094B (en) * | 2021-01-14 | 2024-05-03 | 丰宾电子科技股份有限公司 | Integrated safe explosion-proof capacitor |
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