CN114334463A - Electrode foil and capacitor using same - Google Patents
Electrode foil and capacitor using same Download PDFInfo
- Publication number
- CN114334463A CN114334463A CN202111504571.5A CN202111504571A CN114334463A CN 114334463 A CN114334463 A CN 114334463A CN 202111504571 A CN202111504571 A CN 202111504571A CN 114334463 A CN114334463 A CN 114334463A
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- capacitor
- protective sleeve
- welded
- aluminum
- foil
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- 239000003990 capacitor Substances 0.000 title claims abstract description 54
- 239000011888 foil Substances 0.000 title claims abstract description 52
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 65
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 64
- 230000001681 protective effect Effects 0.000 claims abstract description 44
- 238000005476 soldering Methods 0.000 claims abstract description 7
- 238000005422 blasting Methods 0.000 claims abstract description 3
- 230000000903 blocking effect Effects 0.000 claims description 28
- 239000003792 electrolyte Substances 0.000 claims description 24
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 4
- 239000005030 aluminium foil Substances 0.000 abstract 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Abstract
The invention discloses an electrode foil and a capacitor using the same, relating to the field of capacitors and comprising: an aluminum housing; the aluminum shell is integrally of a cylindrical structure, a cover plate with a round structure is welded and plugged on an opening at the top end of the aluminum shell, a rice-shaped blasting groove is formed in the cover plate, a protective sleeve with a round structure is welded and sleeved on the periphery of the circumference of the aluminum shell, and a round plugging plate is arranged on an opening at the top end of the protective sleeve; a plugging piece is slidably mounted on the circular cover plate at the top end of the protective sleeve; the inside of aluminium system shell is inside and outside the ring cover around rolling up and is provided with a department anode aluminium foil and a department negative pole aluminium foil, and the bottom tin soldering of anode aluminium foil is connected with a department anode stitch. When the capacitor is in a normal working state, the ten rows of vent holes on the protective sleeve are in an open state, so that working heat of the capacitor can be dissipated, the heat dissipation performance of the capacitor is ensured, and the problem that the sealing performance is excessively emphasized to weaken and influence the heat dissipation of the capacitor is solved.
Description
Technical Field
The invention relates to the technical field of capacitors, in particular to an electrode foil and a capacitor using the same.
Background
The electrode foil is obtained by etching, for example, an aluminum metal foil. This increases the surface area of the electrode foil, which is the most important component of the capacitor, and thus increases the electrostatic capacitance.
Most of the existing capacitor shells lack necessary auxiliary reinforcing support components, so that the support strength and the anti-extrusion impact performance of the shells are poor, and in addition, the auxiliary shielding containing components for electrolytes are lacked, so that the electrolytes in the capacitors are gasified at high temperature and easily dispersed to spray and corrode and damage surrounding electrical components when the capacitors are broken down by current in overload.
Disclosure of Invention
In view of the above, the present invention provides an electrode foil and a capacitor using the same, which has a protection cover capable of shielding electrolyte sprayed outwards when the capacitor is broken down by current due to overload, so as to prevent the electrolyte from being sprayed around the inside of an electrical control box body, thereby preventing other electrical components from being corroded and damaged, and solving the problem that the electrical components around the capacitor cannot be effectively protected.
The invention provides the following technical scheme: an electrode foil and a capacitor using the same, comprising an aluminum housing; the aluminum shell is integrally of a cylindrical structure, a cover plate with a round structure is welded and plugged on an opening at the top end of the aluminum shell, a rice-shaped blasting groove is formed in the cover plate, a protective sleeve with a round structure is welded and sleeved on the periphery of the circumference of the aluminum shell, and a round plugging plate is arranged on an opening at the top end of the protective sleeve; a plugging piece is slidably mounted on the circular cover plate at the top end of the protective sleeve; an anode aluminum foil and a cathode aluminum foil are arranged inside the aluminum shell in a winding manner in an inner ring and an outer ring, the bottom of the anode aluminum foil is connected with an anode pin in a soldering manner, and the bottom of the cathode aluminum foil is connected with a cathode pin in a soldering manner; six rib rods are circumferentially welded on the inner circumferential wall of the aluminum shell, and the anode aluminum foil and the cathode aluminum foil are wound along the six rib rods; electrolyte paper is arranged between the anode aluminum foil and the cathode aluminum foil at intervals, and the anode pins and the cathode pins penetrate through the bottom plate of the protective sleeve and extend and protrude downwards; the ten arc-shaped elastic plates are used for abutting and contacting ten rows of blocking rods with the circumferential outer wall of the protecting sleeve, the blocking rods can be in close inserting fit with the air holes in the protecting sleeve by means of the elasticity of the ten arc-shaped elastic plates, the sealing performance of the protecting sleeve is guaranteed, and electrolyte leakage is avoided.
Preferably, ten rows of vent holes are formed in the circumferential outer wall of the protective sleeve in an annular array, and the aluminum shell is sealed by the protective sleeve; the plugging piece comprises a stress plate, and the whole plugging piece consists of a star frame, a hexagonal sliding shaft welded at the center of the bottom of the star frame and the stress plate welded at the bottom of the hexagonal sliding shaft; ten arc-shaped elastic plates are welded on the outer ring of the circumference of the star frame in a surrounding mode, and ten vertical battens are welded at the bottoms of the ten arc-shaped elastic plates.
Preferably, a row of blocking rods are welded on the inner side end faces of the ten vertical battens, and semicircular blocking balls are arranged at the head ends of the blocking rods and are matched with the vent holes in the protective sleeves in an inserting manner along with the semicircular blocking balls on the vertical battens; the hexagonal sliding shaft is correspondingly matched with the circular blocking plate at the top end of the protective sleeve in a penetrating and inserting manner; the stress plate is inserted in the top end space of the protective sleeve, and the stress plate is abutted and contacted with the cover plate.
Compared with the prior art, the invention has the beneficial effects that:
1. the six reinforcing rods can be arranged in a surrounding manner, so that the supporting strength and the anti-extrusion impact performance of the aluminum shell can be effectively enhanced, and the anode aluminum foil, the cathode aluminum foil and the electrolyte paper can be wound along the six reinforcing rods in a winding manner, so that the length of the aluminum shell is increased, the storage capacity of the capacitor is improved, and the specification of the capacitor is improved.
2. When the capacitor is in a normal working state, the ten rows of vent holes on the protective sleeve are in an open state, so that the working heat of the capacitor can be dissipated, and the heat dissipation performance of the capacitor is ensured.
3. The protective sleeve can shield electrolyte sprayed outwards when the capacitor is broken down by current in overload, so that the electrolyte is prevented from being sprayed in a scattered manner in the electric control box body to corrode and damage other electric elements, and the electric elements around the capacitor are effectively protected.
4. The invention can drive and control the air holes on the protective sleeve to be automatically plugged and closed by depending on the injection impact force of the gasified electrolyte when the protective sleeve is burnt out in overload, thereby ensuring the timely tightness of the protective sleeve, saving an automatic closing component additionally matched with the air holes, being beneficial to simplifying the structure of the electrolyte blocking and containing component and reducing the whole manufacturing cost of the capacitor.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic bottom three-dimensional structure of the present invention;
FIG. 3 is a schematic view of a half-section internal three-dimensional structure of the protective cover of the present invention;
FIG. 4 is a schematic view of a sliding installation of the plugging member of the present invention;
FIG. 5 is a schematic view of the construction of the block piece of the present invention;
FIG. 6 is a schematic view of an aluminum housing according to the present invention;
FIG. 7 is a schematic view of the internal structure of the aluminum housing of the present invention;
FIG. 8 is a schematic view illustrating the installation of anode aluminum foil and cathode aluminum foil in a wound manner according to the present invention;
FIG. 9 is an enlarged view of portion A of FIG. 1;
in the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. an aluminum housing; 101. a rib rod; 102. a cover plate; 2. a protective sleeve; 3. a blocking member; 301. A vertical slat; 302. a stress plate; 303. blocking the rod; 4. an anode aluminum foil; 401. an anode pin; 5. cathode aluminum foil; 501. and a cathode pin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Please refer to fig. 1 to 9;
the invention provides an electrode foil and a capacitor using the same, comprising: an aluminum housing 1; the aluminum shell 1 is integrally cylindrical, a circular cover plate 102 is welded and covered on an opening at the top end of the aluminum shell, a Mi-shaped explosion groove is formed in the cover plate 102, a protective sleeve 2 with a circular structure is welded and sleeved on the periphery of the aluminum shell 1, and a circular blocking plate is arranged on an opening at the top end of the protective sleeve 2; a plugging piece 3 is slidably arranged on the circular cover plate at the top end of the protective sleeve 2; the plugging piece 3 comprises a stress plate 302, and the whole plugging piece 3 consists of a star frame, a hexagonal sliding shaft welded at the center of the bottom of the star frame and the stress plate 302 welded at the bottom of the hexagonal sliding shaft; ten arc-shaped elastic plates are welded on the outer ring of the circumference of the star frame in a surrounding manner, and ten vertical battens 301 are welded at the bottoms of the ten arc-shaped elastic plates; a row of blocking rods 303 are welded on the inner side end faces of the ten vertical battens 301, and semicircular blocking balls are arranged at the head ends of the blocking rods 303 and are matched with vent holes in the protective sleeve 2 in an inserting manner along with the semicircular blocking balls sliding on the vertical battens 301; the hexagonal sliding shaft is correspondingly matched with the circular blocking plate at the top end of the protective sleeve 2 in a penetrating and inserting way;
an anode aluminum foil 4 and a cathode aluminum foil 5 are arranged inside the aluminum shell 1 in a winding manner in an inner-outer ring manner, the bottom of the anode aluminum foil 4 is connected with an anode pin 401 in a soldering manner, and the bottom of the cathode aluminum foil 5 is connected with a cathode pin 501 in a soldering manner; electrolyte paper is arranged between the anode aluminum foil 4 and the cathode aluminum foil 5 at intervals, and the anode pins 401 and the cathode pins 501 penetrate through the bottom plate of the protective sleeve 2 and extend and protrude downwards.
As shown in fig. 8, six ribs 101 are circumferentially welded on the inner circumferential wall of the aluminum housing 1, the anode aluminum foil 4 and the cathode aluminum foil 5 are wound around the six ribs 101, the six ribs 101 can be circumferentially arranged to effectively enhance the supporting strength and the anti-impact performance of the aluminum housing 1, and the anode aluminum foil 4, the cathode aluminum foil 5 and the electrolyte paper can be wound around the six ribs 101, which is beneficial to increasing the length of the capacitor, and is beneficial to increasing the storage capacity of the capacitor and improving the specification of the capacitor.
As shown in fig. 2, ten rows of vent holes are formed in the outer wall of the circumference of the protective sleeve 2 in an annular array manner, the protective sleeve 2 seals the aluminum shell 1, and when the capacitor is in a normal working state, the ten rows of vent holes in the protective sleeve 2 are in an open state, so that working heat of the capacitor can be dissipated, and the heat dissipation performance of the capacitor is guaranteed.
As shown in fig. 4, the force-bearing plate 302 is inserted into the top space of the protecting sleeve 2, and the force-bearing plate 302 is in contact with the cover plate 102, the protecting sleeve 2 can shield and contain electrolyte sprayed outwards when the capacitor is broken through by current due to overload, thereby preventing the electrolyte from being sprayed around the inside of the electrical control box body and causing corrosion damage to other electrical components, thereby effectively protecting the electrical components around the capacitor, and when the capacitor is broken through by current due to overload, the electrolyte inside the capacitor can be gasified at high temperature and break through the cover plate 102 and spray outwards depending on continuously increased air pressure, depending on the injection impact force of the electrolyte, the force-bearing plate 302 can drive ten vertical strips 301 and blocking rods 303 thereon to slide upwards to plug and block the air holes on the protecting sleeve 2, which can lead the air holes on the protecting sleeve 2 to be automatically plugged and closed when the capacitor is burned out due to overload, thereby ensuring the timely sealing performance of the protecting sleeve 2, an automatic closing assembly additionally matched with the air holes is omitted, so that the structure of the electrolyte blocking and containing assembly is simplified, and the overall cost of the capacitor is reduced; ten arc-shaped elastic plates are used for abutting and contacting ten rows of blocking rods 303 with the circumferential outer wall of the protective sleeve 2.
The working principle is as follows: when the capacitor is in a normal working state, ten rows of vent holes on the protective sleeve 2 are in an open state, so that working heat of the capacitor can be dissipated, electrolyte in the capacitor can be gasified at high temperature when the capacitor is overloaded and broken down by current and the cover plate 102 is broken down by continuously increased air pressure to be sprayed outwards, the stress plate 302 can drive ten vertical strips 301 and the blocking rods 303 on the vertical strips to slide upwards to plug the vent holes on the protective sleeve 2 by means of the spraying impact force of the electrolyte, the protective sleeve 2 can shield and contain the electrolyte sprayed outwards when the capacitor is overloaded and broken down by current, and the electrolyte is prevented from being sprayed in the electrical control box body in a scattered manner to cause corrosion damage to other electrical equipment elements;
in addition, the elastic force of the ten arc-shaped elastic plates can enable the blocking rod 303 to be in close insertion fit with the air holes in the protecting sleeve 2, so that the sealing performance of the protecting sleeve 2 is ensured, and the leakage of electrolyte is avoided.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. 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.
Claims (10)
1. An electrode foil and a capacitor using the same are characterized in that: clinical test device comprising
An aluminum housing (1); the aluminum shell (1) is integrally of a cylindrical structure, a cover plate (102) with a circular structure is welded and blocked on an opening at the top end of the aluminum shell, a Mi-shaped blasting groove is formed in the cover plate (102), a protective sleeve (2) with a circular structure is welded and sleeved on the periphery of the circumference of the aluminum shell (1), and a circular blocking plate is arranged on an opening at the top end of the protective sleeve (2);
a plugging piece (3) is slidably mounted on the circular cover plate at the top end of the protective sleeve (2);
the aluminum shell (1) is internally provided with an anode aluminum foil (4) and a cathode aluminum foil (5) in an inner and outer ring sleeved and wound mode, the bottom of the anode aluminum foil (4) is connected with an anode pin (401) in a soldering mode, and the bottom of the cathode aluminum foil (5) is connected with a cathode pin (501) in a soldering mode.
2. The electrode foil and the capacitor using the same as claimed in claim 1, wherein: six rib rods (101) are welded on the inner wall of the circumference of the aluminum shell (1) in a surrounding mode, and the anode aluminum foil (4) and the cathode aluminum foil (5) are wound and coiled along the six rib rods (101).
3. The electrode foil and the capacitor using the same as claimed in claim 1, wherein: electrolyte paper is arranged between the anode aluminum foil (4) and the cathode aluminum foil (5) at intervals, and the anode pins (401) and the cathode pins (501) penetrate through the bottom plate of the protective sleeve (2) and extend downwards to protrude.
4. The electrode foil and the capacitor using the same as claimed in claim 1, wherein: the protective sleeve is characterized in that ten rows of vent holes are formed in the outer wall of the circumference of the protective sleeve (2) in an annular array mode, and the aluminum shell (1) is sealed by the protective sleeve (2).
5. The electrode foil and the capacitor using the same as claimed in claim 1, wherein: the plugging piece (3) comprises a stress plate (302), and the plugging piece (3) integrally comprises a star frame, a hexagonal sliding shaft welded at the center of the bottom of the star frame and the stress plate (302) welded at the bottom of the hexagonal sliding shaft.
6. The electrode foil and the capacitor using the same as claimed in claim 1, wherein: ten arc-shaped elastic plates are welded on the outer ring of the circumference of the star frame in a surrounding mode, and ten vertical battens (301) are welded at the bottoms of the ten arc-shaped elastic plates.
7. The electrode foil and the capacitor using the same as claimed in claim 1, wherein: the inner side end faces of the ten vertical battens (301) are welded with a row of blocking rods (303), the head ends of the blocking rods (303) are provided with semicircular blocking balls, and the semicircular blocking balls slide along the vertical battens (301) to correspond to the air holes in the protective sleeve (2) in a plugging and matching mode.
8. The electrode foil and the capacitor using the same as claimed in claim 5, wherein: the hexagonal sliding shaft is correspondingly matched with the circular blocking plate at the top end of the protective sleeve (2) in a penetrating and inserting manner.
9. The electrode foil and the capacitor using the same as claimed in claim 5, wherein: the stress plate (302) is inserted into the top end space of the protective sleeve (2), and the stress plate (302) is in abutting contact with the cover plate (102).
10. The electrode foil and the capacitor using the same as claimed in claim 6, wherein: the ten arc-shaped elastic plates are used for enabling ten rows of blocking rods (303) to be in abutting contact with the circumferential outer wall of the protective sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111504571.5A CN114334463B (en) | 2021-12-10 | 2021-12-10 | Capacitor with improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111504571.5A CN114334463B (en) | 2021-12-10 | 2021-12-10 | Capacitor with improved structure |
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| Publication Number | Publication Date |
|---|---|
| CN114334463A true CN114334463A (en) | 2022-04-12 |
| CN114334463B CN114334463B (en) | 2022-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111504571.5A Active CN114334463B (en) | 2021-12-10 | 2021-12-10 | Capacitor with improved structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008288296A (en) * | 2007-05-16 | 2008-11-27 | Panasonic Corp | Solid electrolytic capacitor |
| CN207052463U (en) * | 2017-04-24 | 2018-02-27 | 中国振华（集团）新云电子元器件有限责任公司 | A kind of vibration resistance energy-storage capacitor |
| CN208111292U (en) * | 2018-05-09 | 2018-11-16 | 四川长虹电器股份有限公司 | A kind of device for preventing electrolytic capacitor from burning |
| CN209691610U (en) * | 2019-05-05 | 2019-11-26 | 佛山市正电电容器有限公司 | A kind of structure improved aluminium electrolutic capacitor |
| CN210110544U (en) * | 2019-06-14 | 2020-02-21 | 惠州三华工业有限公司 | Explosion-proof protective cap mounted on capacitor |
| CN211125385U (en) * | 2019-12-19 | 2020-07-28 | 深圳市粤之光电子科技有限公司 | Explosion-proof type paster electrolytic capacitor |
| CN111613449A (en) * | 2020-06-12 | 2020-09-01 | 安徽航睿电子科技有限公司 | Aluminum electrolytic capacitor |
| CN211555702U (en) * | 2020-04-07 | 2020-09-22 | 深圳东佳电子有限公司 | High-performance electrolytic capacitor |
| CN212209241U (en) * | 2020-04-09 | 2020-12-22 | 安徽瀚宇电气有限公司 | Stable metallized film capacitor |
| CN213242277U (en) * | 2020-09-22 | 2021-05-18 | 广东黄宝石电子科技有限公司 | High-voltage aluminum electrolytic capacitor |
| CN214313379U (en) * | 2021-02-20 | 2021-09-28 | 沭阳鑫能电池有限公司 | High-temperature-resistant zinc-manganese battery |
| CN214898120U (en) * | 2021-02-23 | 2021-11-26 | 深圳市智胜新电子技术有限公司 | Aluminum electrolytic capacitor |
-
2021
- 2021-12-10 CN CN202111504571.5A patent/CN114334463B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008288296A (en) * | 2007-05-16 | 2008-11-27 | Panasonic Corp | Solid electrolytic capacitor |
| CN207052463U (en) * | 2017-04-24 | 2018-02-27 | 中国振华（集团）新云电子元器件有限责任公司 | A kind of vibration resistance energy-storage capacitor |
| CN208111292U (en) * | 2018-05-09 | 2018-11-16 | 四川长虹电器股份有限公司 | A kind of device for preventing electrolytic capacitor from burning |
| CN209691610U (en) * | 2019-05-05 | 2019-11-26 | 佛山市正电电容器有限公司 | A kind of structure improved aluminium electrolutic capacitor |
| CN210110544U (en) * | 2019-06-14 | 2020-02-21 | 惠州三华工业有限公司 | Explosion-proof protective cap mounted on capacitor |
| CN211125385U (en) * | 2019-12-19 | 2020-07-28 | 深圳市粤之光电子科技有限公司 | Explosion-proof type paster electrolytic capacitor |
| CN211555702U (en) * | 2020-04-07 | 2020-09-22 | 深圳东佳电子有限公司 | High-performance electrolytic capacitor |
| CN212209241U (en) * | 2020-04-09 | 2020-12-22 | 安徽瀚宇电气有限公司 | Stable metallized film capacitor |
| CN111613449A (en) * | 2020-06-12 | 2020-09-01 | 安徽航睿电子科技有限公司 | Aluminum electrolytic capacitor |
| CN213242277U (en) * | 2020-09-22 | 2021-05-18 | 广东黄宝石电子科技有限公司 | High-voltage aluminum electrolytic capacitor |
| CN214313379U (en) * | 2021-02-20 | 2021-09-28 | 沭阳鑫能电池有限公司 | High-temperature-resistant zinc-manganese battery |
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| CN114334463B (en) | 2022-09-13 |
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Denomination of invention: A type of capacitor Granted publication date: 20220913 Pledgee: Yancheng Branch of Bank of Bank of Shanghai Co.,Ltd. Pledgor: JIANGSU RONGSHENG ELECTRONIC CO.,LTD. Registration number: Y2024980010398 |