CN114334463B - Capacitor with improved structure - Google Patents

Capacitor with improved structure Download PDF

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Publication number
CN114334463B
CN114334463B CN202111504571.5A CN202111504571A CN114334463B CN 114334463 B CN114334463 B CN 114334463B CN 202111504571 A CN202111504571 A CN 202111504571A CN 114334463 B CN114334463 B CN 114334463B
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protective sleeve
capacitor
welded
anode
aluminum foil
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CN114334463A (en
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陈建军
薛海燕
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Jiangsu Rongsheng Electronic Co ltd
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Jiangsu Rongsheng Electronic Co ltd
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Abstract

The invention discloses a capacitor, which relates to the field of capacitors and comprises: 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

Capacitor with improved structure
Technical Field
The invention relates to the technical field of capacitors, in particular to a capacitor.
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 and supporting components, so that the support strength and the extrusion impact resistance of the shells are poor, and in addition, the capacitor shells lack auxiliary shielding and containing components for electrolytes, so that the electrolytes in the capacitor shells are easily dispersed and sprayed by high temperature gasification to corrode and damage surrounding electrical components when overload is broken down by current.
Disclosure of Invention
In view of the above, the present invention provides a capacitor, which has a protection cover, wherein the protection cover can shield and contain electrolyte sprayed to the outside when the capacitor is broken down by current due to overload, so as to prevent the electrolyte from being sprayed in the electric control box body, so as to prevent other electric components from being corroded and damaged, and solve the problem that the electric components around the capacitor cannot be effectively protected.
The invention provides the following technical scheme: a capacitor 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 arranged on the circular plugging 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 anode pins and cathode pins penetrate through the bottom plate of the protective sleeve and extend downwards to protrude; the ten arc-shaped elastic plates are used for enabling ten rows of blocking rods to be abutted and contacted with the outer wall of the circumference 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 correspondingly matched with vent holes in the protective sleeves along with the semicircular blocking balls on the vertical battens in an inserted manner; 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 in abutting contact 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 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 additional automatic closing component matched with the air holes, being beneficial to simplifying the structure of the electrolyte blocking and containing component and reducing the overall 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 block piece 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 of the installation of the anode aluminum foil and the 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 cathode pins.
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 a capacitor, 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 arranged on the circular plugging plate at the top end of the protective sleeve 2 in a sliding way; 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 circumferentially welded on the outer ring of the circumference of the star frame, 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 the 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 protection sleeve 2 and extend and protrude downwards.
As shown in fig. 8, six rib rods 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 rib rods 101, the six rib rods 101 can be circumferentially arranged to effectively enhance the supporting strength and the anti-extrusion 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 rib rods 101 in a winding manner, which is beneficial to increasing the length of the aluminum housing, improving 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 stress plate 302 is inserted into the top space of the protecting sleeve 2, and the stress 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 down by current, so as to prevent 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 down by current, the electrolyte inside the capacitor can be gasified at high temperature and break through the cover plate 102 to spray outwards by virtue of continuously increased air pressure, and depending on the injection impact force of the electrolyte, the stress plate 302 can drive ten vertical strips 301 and the blocking rods 303 thereon to slide upwards to plug and block the air vents on the protecting sleeve 2, so that the air vents on the protecting sleeve 2 can be automatically plugged and closed when the capacitor is burnt down by overload, thereby ensuring the sealing performance of the protecting sleeve 2 in time, an automatic closing component additionally matched with the air holes is omitted, so that the structure of the electrolyte blocking and containing component is facilitated to be 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 broken down by current, the cover plate 102 is broken through by continuously increased air pressure and is sprayed outwards, the stress plate 302 can drive ten vertical strips 301 and blocking rods 303 on the vertical strips to slide upwards to plug and block the vent holes in the protective sleeve 2 by means of the spraying impact force of the electrolyte, and the protective sleeve 2 can shield and contain the electrolyte sprayed outwards when the capacitor is broken down by current when the capacitor is overloaded, so that the electrolyte is prevented from being sprayed in the electrical control box body in a scattered manner, and other electrical equipment elements are prevented from being corroded and damaged;
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 (6)

1. A capacitor, characterized by: a capacitor 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 arranged on the circular plugging plate at the top end of the protective sleeve (2);
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 ring and an outer ring, 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;
the plugging piece (3) comprises a stress plate (302), the plugging piece (3) is integrally composed 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 mode, and ten vertical strips (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), a semicircular blocking ball is arranged at the head end of each blocking rod (303), and the semicircular blocking ball sliding along the vertical battens (301) is matched with the vent holes in the protective sleeve (2) in an inserting manner;
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).
2. A capacitor according to 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. A capacitor according to claim 1, wherein: electrolyte paper is arranged between the anode aluminum foil (4) and the cathode aluminum foil (5) at intervals, and anode pins (401) and cathode pins (501) penetrate through the bottom plate of the protective sleeve (2) and protrude downwards in an extending mode.
4. A capacitor according to 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. A capacitor according to claim 1, 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.
6. A capacitor according to claim 1, 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).
CN202111504571.5A 2021-12-10 2021-12-10 Capacitor with improved structure Active CN114334463B (en)

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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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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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CN114334463B true CN114334463B (en) 2022-09-13

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
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

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

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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

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