CN210692369U - Low temperature resistant electrolytic capacitor - Google Patents
Low temperature resistant electrolytic capacitor Download PDFInfo
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- CN210692369U CN210692369U CN201922264710.6U CN201922264710U CN210692369U CN 210692369 U CN210692369 U CN 210692369U CN 201922264710 U CN201922264710 U CN 201922264710U CN 210692369 U CN210692369 U CN 210692369U
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- electrolytic capacitor
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- low temperature
- temperature resistant
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Abstract
The utility model discloses a low temperature resistant electrolytic capacitor, include: the casing, locate the sleeve pipe in the casing outside, locate inside core package of casing, locate the locating plate of casing top, locate the apron of locating plate top, locate the heat preservation sleeve of core package surface, locate the freeze-proof coating of heat preservation sleeve surface, locate the inboard enhancement sleeve pipe of casing, strengthen the sleeve pipe with there is sealed chamber between the freeze-proof coating, sealed intracavity is equipped with the heat preservation filler. The electrolytic capacitor of the utility model has simple structure, good low temperature resistance and long service life; the low-temperature resistance of the electrolytic capacitor can be effectively improved by arranging the heat-insulating sleeve, the anti-freezing layer and the reinforcing sleeve; a sealing cavity is arranged between the anti-freezing layer and the reinforcing sleeve, and heat-insulating filler is filled in the sealing cavity, so that the low-temperature resistance of the electrolytic capacitor can be further improved.
Description
Technical Field
The utility model relates to an electrolytic capacitor technical field especially relates to a low temperature resistant electrolytic capacitor.
Background
The capacitor is one of electronic components used in a large number of electronic devices, and as the performance requirements of electronic products are increased, the performance requirements of the capacitor are also increased.
The service temperature range of the traditional electrolytic capacitor is usually in the range of-25 ℃ to +75 ℃, if the service temperature is too low, when the service temperature is too low, the capacity, the loss and the leakage current of the electrolytic capacitor can be deteriorated, the use of the capacitor is influenced, and even the due function is lost, so that the service life of the capacitor is influenced.
Therefore, the prior art is not sufficient and needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art and providing a low temperature resistant electrolytic capacitor.
The technical scheme of the utility model as follows: provided is a low temperature resistant electrolytic capacitor comprising: the casing, locate the sleeve pipe in the casing outside, locate inside core package of casing, locate the locating plate of casing top, locate the apron of locating plate top, locate the heat preservation sleeve of core package surface, locate the freeze-proof coating of heat preservation sleeve surface, locate the inboard enhancement sleeve pipe of casing, strengthen the sleeve pipe with there is sealed chamber between the freeze-proof coating, sealed intracavity is equipped with the heat preservation filler.
Further, the inner surface of the reinforcing sleeve extends towards the shell to form a plurality of supporting arms, and the ends of the supporting arms abut against the inner surface of the shell.
Further, the reinforcing sleeve is a rubber sleeve.
Further, the heat-insulating sleeve is an asbestos sleeve, and the heat-insulating filler is a asbestos sliver.
Further, the anti-freezing layer is an anti-freezing coating layer.
Further, the core package is including piling up in proper order and the first electrolytic paper of coiling, anodal paper tinsel, second electrolytic paper, negative pole paper tinsel and third electrolytic paper, be connected with anodal foil strip and negative pole foil strip on anodal paper tinsel, the negative pole foil strip respectively, anodal foil strip top is equipped with anodal lead wire, anodal lead wire top is equipped with anodal lead terminal, negative pole foil strip top is equipped with negative pole lead wire, negative pole lead wire top is equipped with negative pole lead terminal, anodal foil strip and negative pole foil strip pass the locating plate.
Furthermore, the positioning plate is provided with two positioning holes corresponding to the positive foil strip and the negative foil strip.
Further, the positioning plate is a rubber plate.
Furthermore, the edge of the positioning plate is provided with a sealing strip.
Further, an adhesive layer is arranged between the sealing strip and the positioning plate.
By adopting the scheme, the electrolytic capacitor has simple structure, good low temperature resistance and long service life; the low-temperature resistance of the electrolytic capacitor can be effectively improved by arranging the heat-insulating sleeve, the anti-freezing layer and the reinforcing sleeve; a sealing cavity is arranged between the anti-freezing layer and the reinforcing sleeve, and heat-insulating filler is filled in the sealing cavity, so that the low-temperature resistance of the electrolytic capacitor can be further improved.
Drawings
FIG. 1 is a schematic view of the electrolytic capacitor of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the present invention provides a low temperature resistant electrolytic capacitor, including: casing 1, locate casing 1 outside sleeve pipe 2, locate 1 inside core package 3 of casing, locate the locating plate 4 of 1 top of casing, locate the apron 5 of locating plate 4 top, locate the heat preservation sleeve 6 of 3 package surfaces of core, locate the freeze-proof coating 7 of heat preservation sleeve 6 surface, locate the reinforcing sleeve 8 in the freeze-proof coating 7 outside, reinforcing sleeve 8 with there is sealed chamber 9 between the casing 1, sealed chamber 9 intussuseption is filled with heat preservation filler, specifically in this embodiment the heat preservation filler has the insulating effect of heat preservation, can be the asbestos strip, or insulating fiber strip, twines the asbestos strip or insulating fiber strip earlier during specific operation reinforcing sleeve 8's the outside, then sheathes in casing 1 can further strengthen electrolytic capacitor's low temperature resistance. Specifically, in this embodiment, the inner surface of the reinforcing sleeve 8 extends towards the casing 1 to form a plurality of supporting arms 10, the end portions of the supporting arms 10 abut against the inner surface of the casing 1, the sealing cavity 9 is divided into a plurality of independent small sealing cavity units, the supporting arms 10 are arranged to play a supporting role, deformation of the casing 1 after being extruded is avoided, at this time, the winding of the heat-insulating filler can set the width of the heat-insulating filler according to the distance between two adjacent supporting arms 10, and the winding is performed in the gap between the supporting arms 10. The reinforcing sleeve 8 is an integrally formed rubber sleeve. Specifically, in this embodiment the heat preservation sleeve 6 is an asbestos sleeve, and the asbestos has the insulating, fireproof and heat-insulating effects, and plays a good role in heat preservation, avoids low temperature from affecting the function of the core package 3, and can also select other materials with the above-mentioned effects. Furthermore, the outer surface of the heat-insulating sleeve 6 is coated with an anti-freezing coating layer, so that the low-temperature resistance of the electrolytic capacitor can be effectively improved, and the failure of electrolyte in the core package due to the influence of low temperature can be effectively relieved.
Specifically, the utility model discloses, core package 3 is including piling up in proper order and the first electrolytic paper 31 of coiling, anodal paper tinsel 32, second electrolytic paper 33, negative pole paper tinsel 34 and third electrolytic paper 35, be connected with anodal foil tinsel 11 and negative pole foil tinsel 12 on anodal foil tinsel 32, the negative pole foil tinsel 34 respectively, anodal foil tinsel 11 top is equipped with anodal lead 13, anodal lead 13 top is equipped with anodal lead terminal 14, negative pole foil tinsel 12 top is equipped with negative pole lead 15, negative pole lead 13 top is equipped with negative pole lead terminal 16, anodal foil tinsel 11 and negative pole foil tinsel 12 pass locating plate 4, anodal lead 13, anodal lead terminal 14, negative pole lead terminal 15 and negative pole lead terminal 16 pass apron 5. Specifically, in this embodiment, the positioning plate 4 is provided with two positioning holes 17 corresponding to the positive foil strip 11 and the negative foil strip 12, wherein the aperture of the positioning hole 17 is larger than the width of the two foil strips, which is convenient for assembly. Specifically, in this embodiment, the positioning plate 4 is a rubber plate, and the rubber plate has good heat insulation and sealing effects, and can fix the two lead leads and play a role in heat insulation and sealing. Meanwhile, in this embodiment, a sealing strip (not shown in the figure) is disposed at an edge of the positioning plate 4, and the sealing strip is bonded to the edge of the positioning plate 4 through an adhesive.
In conclusion, the electrolytic capacitor of the utility model has simple structure, good low temperature resistance and long service life; the low-temperature resistance of the electrolytic capacitor can be effectively improved by arranging the heat-insulating sleeve, the anti-freezing layer and the reinforcing sleeve; a sealing cavity is arranged between the anti-freezing layer and the reinforcing sleeve, and heat-insulating filler is filled in the sealing cavity, so that the low-temperature resistance of the electrolytic capacitor can be further improved.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A low temperature resistant electrolytic capacitor, comprising: the casing, locate the sleeve pipe in the casing outside, locate inside core package of casing, locate the locating plate of casing top, locate the apron of locating plate top, locate the heat preservation sleeve of core package surface, locate the freeze-proof coating of heat preservation sleeve surface, locate the inboard enhancement sleeve pipe of casing, strengthen the sleeve pipe with there is sealed chamber between the freeze-proof coating, sealed intracavity is equipped with the heat preservation filler.
2. The low temperature resistant electrolytic capacitor of claim 1 wherein the inner surface of the reinforcing sleeve extends in the direction of the housing to form support arms, the ends of the support arms abutting the inner surface of the housing.
3. The low temperature resistant electrolytic capacitor according to claim 2, wherein the reinforcing sleeve is a rubber sleeve.
4. The low temperature resistant electrolytic capacitor of claim 1 wherein the insulative sleeve is an asbestos sleeve and the insulative filler is a tampon.
5. The low temperature resistant electrolytic capacitor according to claim 1, wherein the antifreeze layer is an antifreeze paint layer.
6. The low temperature resistant electrolytic capacitor of claim 1, wherein the core package comprises a first electrolytic paper, a positive foil, a second electrolytic paper, a negative foil and a third electrolytic paper stacked and wound in sequence, the positive foil and the negative foil are connected with a positive foil strip and a negative foil strip respectively, a positive lead wire is arranged above the positive foil strip, a positive lead terminal is arranged above the positive lead wire, a negative lead wire is arranged above the negative foil strip, a negative lead terminal is arranged above the negative lead wire, and the positive foil strip and the negative foil strip pass through the positioning plate.
7. The low temperature resistant electrolytic capacitor according to claim 6, wherein the positioning plate has two positioning holes corresponding to the positive foil and the negative foil.
8. The low temperature resistant electrolytic capacitor of claim 7 wherein the positioning plate is a rubber plate.
9. The low temperature resistant electrolytic capacitor in accordance with claim 7 or 8, wherein the edge of the positioning plate is provided with a sealing tape.
10. The low temperature resistant electrolytic capacitor according to claim 9, wherein an adhesive layer is provided between the sealing tape and the positioning plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922264710.6U CN210692369U (en) | 2019-12-13 | 2019-12-13 | Low temperature resistant electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922264710.6U CN210692369U (en) | 2019-12-13 | 2019-12-13 | Low temperature resistant electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210692369U true CN210692369U (en) | 2020-06-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922264710.6U Active CN210692369U (en) | 2019-12-13 | 2019-12-13 | Low temperature resistant electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210692369U (en) |
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2019
- 2019-12-13 CN CN201922264710.6U patent/CN210692369U/en active Active
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