CN219553428U

CN219553428U - High-resistance Wen Xinglv electrolytic capacitor

Info

Publication number: CN219553428U
Application number: CN202223439475.XU
Authority: CN
Inventors: 孙彧军; 钱小洋; 何燕飞
Original assignee: Nantong Tongcheng Electronics Co ltd
Current assignee: Nantong Tongcheng Electronics Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-08-18
Anticipated expiration: 2032-12-22

Abstract

The utility model relates to a high-resistance Wen Xinglv electrolytic capacitor, which relates to the technical field of capacitors and aims to solve the problem of poor heat dissipation in an aluminum electrolytic capacitor. The utility model has the effect of improving heat dissipation.

Description

High-resistance Wen Xinglv electrolytic capacitor

Technical Field

The utility model relates to the technical field of capacitors, in particular to a high-resistance Wen Xinglv electrolytic capacitor.

Background

The capacitor is composed of two electrodes and dielectric material therebetween, the dielectric material is a dielectric, when the dielectric material is placed in an electric field between two parallel polar plates with equal amount of opposite charges, polarized charges are generated on the surface of the dielectric due to polarization, so that the charges bound on the polar plates are correspondingly increased, and the potential difference between the polar plates is kept unchanged, which is the reason that the capacitor has the capacitance characteristic, the electric quantity Q stored in the capacitor is equal to the product of the capacitance C and the potential difference U between the electrodes, the capacitance is proportional to the polar plate area and the dielectric constant epsilon of the dielectric material, and the electric quantity Q is inversely proportional to the thickness of the dielectric material.

In the related art, the internal temperature of the current aluminum electrolytic capacitor can continuously rise along with the time in the use process, the internal heat of the aluminum electrolytic capacitor cannot be released, the heat dissipation performance is poor, the core in the aluminum electrolytic capacitor is easily volatilized due to the influence of high temperature, and therefore the service life of the aluminum electrolytic capacitor is shortened, and the aluminum electrolytic capacitor needs to be improved.

Disclosure of Invention

The utility model provides a high-resistance Wen Xinglv electrolytic capacitor, which aims to solve the problem of poor internal heat dissipation of an aluminum electrolytic capacitor.

The utility model provides a high-resistance Wen Xinglv electrolytic capacitor which adopts the following technical scheme:

the utility model provides a high Wen Xinglv electrolytic capacitor, includes the aluminum hull body, the inside cavity mechanism that is of aluminum hull body, the inside core package and two binding post that are provided with of aluminum hull body, two binding post all connects on the core package, two binding post is provided with anodal lead wire and negative pole lead wire respectively, anodal lead wire and negative pole lead wire all extend towards the outside of aluminum hull body, the inside heat conduction device that is provided with of aluminum hull body, heat conduction device includes a plurality of conducting strip, a plurality of the conducting strip all connects on the outer wall of core package, a plurality of the conducting strip sets up along the circumferencial direction equidistance of core package, a plurality of through-holes have been seted up on the aluminum hull body, the one end that the core package was kept away from to the conducting strip passes through-hole inner wall and extends to the outside of aluminum hull body.

Because the internal temperature of the current aluminum electrolytic capacitor can continuously rise along with the time in the use process, the internal heat of the aluminum electrolytic capacitor cannot be released, the heat dissipation performance is poor, and the electrolyte in the core bag of the aluminum electrolytic capacitor is easily volatilized due to the influence of high temperature, so that the service life of the aluminum electrolytic capacitor is reduced; by adopting the technical scheme, the aluminum shell comprises an aluminum shell body, wherein the core bag and the two wiring terminals are both positioned in the aluminum shell body, and a heat conduction device is arranged in the aluminum shell body and consists of a plurality of heat conduction sheets; through the setting of a plurality of conducting strips, help increasing the inside heat radiating area of aluminum hull body, can in time conduct the heat dissipation with the heat of core package for radiating rate, improve the radiating effect, have high temperature resistant ability, reduce the core package and receive the volatile possibility of electrolyte appearance after the high temperature, prolonged aluminum electrolytic capacitor's life, guarantee aluminum electrolytic capacitor and stabilize work.

Optionally, each one end of the heat conducting strip away from the core bag is provided with a plurality of heat dissipation strips, the heat dissipation strips are vertically arranged on the heat conducting strip, and a plurality of heat dissipation strips are sequentially arranged along the length direction of the heat conducting strip.

By adopting the technical scheme, the end parts of the heat conducting fins are integrally formed into a plurality of heat radiating strips; through the setting of a plurality of radiating strips, further increased the radiating area of conducting strip itself, guaranteed the radiating rate to the inside heat dissipation of aluminium shell body, the heat dispersion is good.

Optionally, a sealing strip for eliminating gaps is disposed on the inner wall of each through hole, and the sealing strips are abutted against the side walls of the heat conducting fins.

By adopting the technical scheme, the sealing strip is glued and fixed on the inner wall of the through hole; through the setting of sealing strip, reduce the possibility that the clearance appears between conducting strip and the through-hole inner wall, guaranteed the leakproofness of aluminium casing body, reduce the possibility that dust steam etc. enter into this internal of aluminium casing through the clearance, extension aluminium electrolytic capacitor's life.

Optionally, the inside damping device that is used for the antidetonation that is provided with of aluminum hull body, damping device includes a plurality of shock mounts and a plurality of damping spring, and is a plurality of the shock mount sets up on the inside diapire of aluminum hull body, a plurality of the shock mount with a plurality of damping spring is corresponding, damping spring's one end is connected on the shock mount, damping spring's the other end is connected on the core package.

Because the electrolytic capacitor has a simple mounting structure, the electrolytic capacitor does not have a good anti-vibration function, when the circuit board is subjected to severe vibration, the capacitor can vibrate along with the vibration, so that the capacitor loosens and even the lead of the anode and the cathode is broken, an open circuit state is formed, and the due function is lost; by adopting the technical scheme, the damping device consists of a plurality of damping seats and a plurality of damping springs; through the setting of shock mount and damping spring, have damping performance, reduced the vibration amplitude of inside core package, reduced the core package and appear vibrations and lead to positive and negative lead wire cracked possibility, guaranteed that the core package is difficult for impaired, improved electrolytic capacitor's stability.

Optionally, a plurality of damping springs and core package between be provided with the division board, the core package sets up on the division board, a plurality of damping springs keep away from the one end of shock mount and connect on the division board.

By adopting the technical scheme, the partition plates are arranged between the damping springs and the core bag; through the setting of division board, increased damping spring and core package between area of contact, guaranteed damping spring's shock attenuation effect, damping stability is high.

Optionally, an annular plate is disposed at one end of the partition plate away from the damping spring, and the core pack is disposed on an inner wall of the annular plate.

By adopting the technical scheme, one end of the partition plate, which is far away from the damping spring, is integrally formed with the annular plate; through the setting of annular plate, help realizing the installation between core package and the division board, reduce the possibility that the core package becomes flexible from the division board.

Optionally, the inside rubber sealing plug that is provided with of aluminum hull body, rubber sealing plug sets up in the one end that the division board was kept away from to the core package, the terminal sets up in rubber sealing plug, anodal lead wire and negative pole lead wire pass rubber sealing plug and extend to the aluminum hull body outside.

By adopting the technical scheme, the rubber sealing plug is embedded in the aluminum shell body; through the setting of rubber sealing plug, help realizing the protection to core package, anodal lead wire and negative pole lead wire, reduce inside electrolyte and reveal and volatilize, improve the leakproofness.

Optionally, an insulating film for insulation is arranged on the outer wall of the aluminum shell body, and the insulating film is wrapped on the outer wall of the aluminum shell body.

By adopting the technical scheme, the outer wall of the aluminum shell body is wrapped with the insulating film; through the arrangement of the insulating film, the aluminum electrolytic capacitor has good insulating effect, the possibility of breakdown of the aluminum electrolytic capacitor is reduced, and the stable performance of the aluminum electrolytic capacitor in long-term operation is ensured.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the heat dissipation area inside the aluminum shell body is increased by the arrangement of the heat conducting fins, heat of the core package can be conducted and dissipated in time, the heat dissipation speed is increased, the heat dissipation effect is improved, the high-temperature resistance capability is achieved, the possibility that electrolyte volatilizes after the core package is subjected to high temperature is reduced, the service life of the aluminum electrolytic capacitor is prolonged, and the stable operation of the aluminum electrolytic capacitor is ensured;

2. through the arrangement of the sealing strips, the possibility of gaps between the heat conducting fins and the inner walls of the through holes is reduced, the tightness of the aluminum shell body is ensured, the possibility that dust, water vapor and the like enter the aluminum shell body through the gaps is reduced, and the service life of the aluminum electrolytic capacitor is prolonged;

3. through the setting of shock mount and damping spring, have damping performance, reduced the vibration amplitude of inside core package, reduced the core package and appear vibrations and lead to positive and negative lead wire cracked possibility, guaranteed that the core package is difficult for impaired, improved electrolytic capacitor's stability.

Drawings

Fig. 1 is a schematic structural diagram of a high-resistance Wen Xinglv electrolytic capacitor according to an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of fig. 1.

Reference numerals illustrate: 1. an aluminum shell body; 11. a through hole; 2. a core pack; 3. a connection terminal; 31. a positive electrode lead; 32. a negative electrode lead; 4. a heat conduction device; 41. a heat conductive sheet; 5. a heat dissipation strip; 6. a sealing strip; 7. a damping device; 71. a shock absorption seat; 72. a damping spring; 8. a partition plate; 81. an annular plate; 9. a rubber sealing plug; 10. an insulating film.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-2.

The embodiment of the utility model discloses a high-resistance Wen Xinglv electrolytic capacitor. Referring to fig. 1 and 2, the high temperature resistant aluminum electrolytic capacitor includes an aluminum case body 1, the inside of the aluminum case body 1 is a hollow structure, in this embodiment, the aluminum case body 1 is a cylindrical structure, a core package 2 and two connecting terminals 3 are installed inside the aluminum case body 1, the core package 2 is located inside the aluminum case body 1, the two connecting terminals 3 are fixedly connected to the core package 2, in this embodiment, an anode lead 31 and a cathode lead 32 are fixedly connected to the two connecting terminals 3 respectively, and the anode lead 31 and the cathode lead 32 all extend towards the outside of the aluminum case body 1.

Referring to fig. 1, an insulating film 10 is wrapped on the outer wall of an aluminum shell body 1, and the insulating film 10 has a good insulating effect, so that the possibility of breakdown of the aluminum shell body 1 is reduced, and the stable performance of the aluminum electrolytic capacitor in long-term operation is ensured.

Referring to fig. 1 and 2, the aluminum housing body 1 internally mounted has the rubber sealing plug 9, and the rubber sealing plug 9 inlays to be established in the aluminum housing body 1, and rubber sealing plug 9 is the rubber material in this embodiment, and binding post 3 is located the rubber sealing plug 9, and anodal lead 31 and negative pole lead 32 pass the rubber sealing plug 9 and extend to the outside of the aluminum housing body 1 for realize the protection to core package 2, anodal lead 31 and negative pole lead 32, reduce inside electrolyte and reveal and volatilize, improve the leakproofness.

Referring to fig. 1 and 2, the heat-conducting device 4 is installed inside the aluminum shell body 1, the heat-conducting device 4 comprises a plurality of heat-conducting fins 41, the plurality of heat-conducting fins 41 are all glued and fixed on the outer wall of the core pack 2, in this embodiment, the plurality of heat-conducting fins 41 are equidistantly arranged along the circumferential direction of the core pack 2, a plurality of through holes 11 are formed in the aluminum shell body 1 in a penetrating manner, the number of openings of the through holes 11 is consistent with the number of the heat-conducting fins 41, one end of the heat-conducting fins 41, far away from the core pack 2, penetrates through the inner wall of the through holes 11 and extends to the outside of the aluminum shell body 1, the heat-radiating area inside the aluminum shell body 1 is increased, heat of the core pack 2 can be conducted and radiated timely, the heat-radiating speed is accelerated, the heat-radiating effect is improved, the high-temperature-resistant capability is reduced, the possibility that the electrolyte volatilizes after the core pack 2 is subjected to high temperature is reduced, the service life of the aluminum electrolytic capacitor is prolonged, and stable operation of the aluminum electrolytic capacitor is ensured.

Referring to fig. 1 and 2, one end of each heat conducting strip 41 far away from the core package 2 is integrally formed with a plurality of heat dissipating strips 5, the plurality of heat dissipating strips 5 are vertically arranged on the heat conducting strip 41, and the plurality of heat dissipating strips 5 are arranged along the length mode of the heat conducting strip 41 so as to further increase the heat dissipating area of the heat conducting strip 41, ensure the heat dissipating speed of the inside of the aluminum shell body 1 and have good heat dissipating performance.

Referring to fig. 2, the aluminum shell body 1 internally mounted has the damping device 7, the damping device 7 is located the core package 2 and keeps away from the rubber sealing plug 9, the damping device 7 includes a plurality of shock mounts 71 and a plurality of damping springs 72, a plurality of shock mounts 71 are all glued and fixed on the inside diapire of aluminum shell body 1, the quantity of shock mounts 71 is the same with damping springs 72 in this embodiment, damping springs 72's one end is glued and is glued in shock mounts 71 for possess damping performance, the vibrations range of inside core package 2 has been reduced, reduce core package 2 and appear vibrations and lead to the cracked possibility of positive pole lead 31 and negative pole lead 32, guarantee core package 2 is difficult for damaging, improve electrolytic capacitor's stability.

Referring to fig. 2, one end of the plurality of damper springs 72 away from the damper base 71 is adhesively fixed with the partition plate 8, and the core pack 2 is located at one end of the partition plate 8 away from the damper springs 72, so as to increase the contact area between the damper springs 72 and the core pack 2, ensure the damping effect of the damper springs 72, and have high damping stability.

Referring to fig. 2, an annular plate 81 is integrally formed at one end of the partition plate 8 away from the damper spring 72, and in this embodiment, the core pack 2 is inserted into an inner wall of the annular plate 81 to achieve the installation between the core pack 2 and the partition plate 8, so as to reduce the possibility of loosening the core pack 2 from the partition plate 8.

The implementation principle of the high-resistance Wen Xinglv electrolytic capacitor provided by the embodiment of the utility model is as follows: in the working process of the electrolytic capacitor, heat is gradually accumulated in the aluminum shell body 1, the heat in the core pack 2 is conducted by the heat conducting fins 41, and the heat of the core pack 2 is timely conducted and radiated by the radiating strips 5; through the setting of a plurality of conducting strips 41, help increasing the inside heat radiating area of aluminum hull body 1, can in time conduct the heat dissipation with the heat of core package 2 for radiating rate, improve the radiating effect, have high temperature resistant ability, reduce core package 2 and receive the volatile possibility of electrolyte appearance after the high temperature, prolonged aluminum electrolytic capacitor's life, guarantee aluminum electrolytic capacitor and stabilize work.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. A high Wen Xinglv resistant electrolytic capacitor, characterized by: including aluminum hull body (1), aluminum hull body (1) inside is cavity mechanism, aluminum hull body (1) inside is provided with core package (2) and two binding post (3), two binding post (3) all connect on core package (2), two binding post (3) are provided with anodal lead wire (31) and negative pole lead wire (32) respectively, anodal lead wire (31) and negative pole lead wire (32) all extend towards aluminum hull body (1) outside, aluminum hull body (1) inside is provided with heat conduction device (4), heat conduction device (4) include a plurality of conducting strip (41), a plurality of conducting strip (41) all connect on the outer wall of core package (2), a plurality of conducting strip (41) are along the circumferencial direction equidistance setting of core package (2), a plurality of through-holes (11) have been seted up on aluminum hull body (1), the one end that core package (2) were kept away from to conducting strip (41) is passed through-hole (11) inner wall and is extended to aluminum hull body (1) outside.

2. A high-resistance Wen Xinglv electrolytic capacitor according to claim 1, wherein: each one end of the heat conducting fin (41) far away from the core bag (2) is provided with a plurality of heat radiating strips (5), the heat radiating strips (5) are vertically arranged on the heat conducting fin (41), and the heat radiating strips (5) are sequentially arranged along the length direction of the heat conducting fin (41).

3. A high-resistance Wen Xinglv electrolytic capacitor according to claim 1, wherein: sealing strips (6) for eliminating gaps are arranged on the inner wall of each through hole (11), and the sealing strips (6) are abutted against the side walls of the heat conducting fins (41).

4. A high-resistance Wen Xinglv electrolytic capacitor according to claim 1, wherein: the aluminum shell is characterized in that a rubber sealing plug (9) is arranged inside the aluminum shell body (1), the wiring terminal (3) is arranged in the rubber sealing plug (9), and the positive electrode lead (31) and the negative electrode lead (32) penetrate through the rubber sealing plug (9) and extend to the outside of the aluminum shell body (1).

5. A high-resistance Wen Xinglv electrolytic capacitor according to claim 1, wherein: an insulating film (10) for insulation is arranged on the outer wall of the aluminum shell body (1), and the insulating film (10) is wrapped on the outer wall of the aluminum shell body (1).