CN211555692U

CN211555692U - High-power aluminum electrolytic capacitor with auxiliary heat dissipation device

Info

Publication number: CN211555692U
Application number: CN202020435136.6U
Authority: CN
Inventors: 杜嘉杰; 魏蓉晖
Original assignee: SHENZHEN DONGJIA ELECTRONICS CO Ltd
Current assignee: SHENZHEN DONGJIA ELECTRONICS CO Ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-09-22
Anticipated expiration: 2030-03-30

Abstract

The utility model discloses a high-power aluminum electrolytic capacitor with auxiliary heat abstractor, including protective housing, condenser endosome and end cap, protective housing's one end sets up first opening, and protective housing's the other end is provided with the second opening, evenly is provided with the louvre on protective housing's the lateral wall, and protective housing's inside is provided with the condenser endosome, the other end of condenser endosome is provided with first pin and second pin side by side, the end cap is installed to second open-ended inboard, and the inboard border position department annular of end cap is provided with the closing plate, and the position department that the end cap corresponds first pin and second pin all is provided with the through-hole. The utility model discloses the heat of core package can be effectively absorbed to inboard heat-conducting layer to pass to the interior casing in the outside through the heat conduction pole, give off the heat to the surrounding environment in through the radiation mode, effectively reach radiating effect, increase the heat-sinking capability of this condenser and can effectively prolong the life of this condenser.

Description

High-power aluminum electrolytic capacitor with auxiliary heat dissipation device

Technical Field

The utility model relates to the technical field of capacitors, in particular to a high-power aluminum electrolytic capacitor with an auxiliary heat dissipation device.

Background

The electrolytic capacitor is one kind of capacitor, the metal foil is an oxide film with its positive electrode and positive electrode closely attached to metal as dielectric, the cathode is composed of conductive material, electrolyte and other materials, the polar electrolytic capacitor usually has the functions of power filtering, decoupling, signal coupling and time constant setting, DC isolation and the like in power supply circuit or medium-frequency and low-frequency circuits, and the electrolytic capacitor is widely applied to household appliances and various electronic products and has a large capacity range.

The following problems or defects are generally existed in the existing electrolytic capacitor during the assembling process or the working process:

1. the capacitor can generate heat when in use, and the heat can be radiated in time, so that the capacitor can be directly expanded, and the service performance and the service life of the capacitor can be directly influenced;

2. the pin part has no protection, so that the pin part in the electrolytic capacitor is easy to fall off;

3. when the electrolyte in the capacitor generates high temperature, gas can be generated to increase the pressure in the capacitor, and when the pressure exceeds the pressure borne by the aluminum shell of the electrolytic capacitor, the capacitor can explode, so that the safety is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-power aluminum electrolytic capacitor with an auxiliary heat dissipation device, which aims to solve the problem of untimely heat proposed in the background technology; the pin part is easy to fall off; the safety is poor.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high-power aluminum electrolytic capacitor with supplementary heat abstractor, includes protective housing, capacitor endosome and end cap, protective housing's one end sets up first opening, and protective housing's the other end is provided with the second opening, evenly is provided with the louvre on protective housing's the lateral wall, and protective housing's inside is provided with the capacitor endosome, and the one end of capacitor endosome evenly is provided with heat radiation fins, and heat radiation fins is corresponding with first opening, the other end of capacitor endosome is provided with first pin and second pin side by side, the end cap is installed to second open-ended inboard, and the border position department of the inboard of end cap ring is provided with the closing plate, and the position department that the end cap corresponds first pin and second pin all is provided with the through-.

Preferably, the inner side wall of the protective shell is uniformly provided with limiting sliding grooves, the outer wall of the capacitor inner body is uniformly provided with limiting sliding strips, the capacitor inner body is detachably inserted into the capacitor inner body in the inner limiting sliding grooves of the protective shell through the limiting sliding strips, and a heat dissipation cavity is arranged between the protective shell and the capacitor inner body.

Preferably, the inside center of condenser endosome is provided with the core package, and the outside of core package is provided with the aluminium system covering, and the outside on aluminium system covering has set gradually heat-conducting layer and silica gel layer, and the outside on silica gel layer is provided with interior casing, and evenly is provided with the heat-conducting rod on the outer wall of heat-conducting layer, and the other end of heat-conducting rod runs through the inner wall connection of heat-conducting layer and silica gel layer and interior casing simultaneously.

Preferably, the outer diameter of the sealing plate is equal to the inner diameter of the second opening, the outer wall of the sealing plate is sleeved with the sealing ring, the inner side wall of the second opening is provided with a sealing clamping groove, and the sealing ring is matched with the sealing clamping groove.

Preferably, a fixed clamping block is arranged on the plug on one side of the through hole, a movable clamping block is arranged on the plug on the other side of the through hole through an adjusting groove, and a protective pad is laid on the inner side walls of the movable clamping block and the fixed clamping block.

Preferably, the bottom of the movable clamping block is provided with an adjusting block, the outer contour of the adjusting block is smaller than the inner contour of the adjusting groove, the movable clamping block is slidably mounted on the inner side of the adjusting groove of the plug through the adjusting block, and meanwhile, the movable clamping block is fixedly connected with the fixed clamping block through a locking bolt.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the high-power aluminum electrolytic capacitor with the auxiliary heat dissipation device is characterized in that an aluminum cladding is arranged on the outer side of a core bag, a heat conduction layer and a silica gel layer are sequentially arranged on the outer side of the aluminum cladding, an inner shell is arranged on the outer side of the silica gel layer, and heat conduction rods are uniformly arranged on the outer wall of the heat conduction layer, so that the other ends of the heat conduction rods penetrate through the heat conduction layer and the silica gel layer to be connected with the inner wall of the inner shell;

(2) according to the high-power aluminum electrolytic capacitor with the auxiliary heat dissipation device, the inner side of the second opening is provided with the plug, the positions, corresponding to the first pin and the second pin, of the plugs are provided with the through holes, the plug on one side of each through hole is provided with the fixed clamping block, the plug on the other side of each through hole is provided with the movable clamping block through the adjusting groove, the movable clamping block and the fixed clamping block are fixedly connected through the locking bolt, the pins can be effectively clamped and fixed, the pins are prevented from falling off from the inner body of the capacitor under the action of external force to influence the use of the capacitor, and then the inner side walls of the movable clamping block and the fixed clamping block are both provided with the protection pads, so;

(3) this high-power aluminum electrolytic capacitor with auxiliary heat abstractor through the heat conduction pole that transversely runs through the capacitor endosome in the inside setting of capacitor to the both ends of heat conduction pole are connected with heat conduction layer and interior casing respectively, when guaranteeing effective heat dissipation, have strengthened the structural strength of capacitor greatly, cooperate the protective housing that the capacitor endosome outside set up, can effectually avoid the capacitor inflation explosion, increase the security in the use.

Drawings

FIG. 1 is a schematic side sectional view of the present invention;

FIG. 2 is a schematic sectional view of the end face of the present invention;

FIG. 3 is a schematic view of the plug structure of the present invention;

fig. 4 is a schematic view of the protective housing of the present invention.

In the figure: 1. a protective housing; 101. a first opening; 102. a second opening; 103. a limiting chute; 104. heat dissipation holes; 105. sealing the clamping groove; 2. a capacitor inner body; 201. a limiting slide bar; 202. a core package; 203. an aluminum cladding; 204. a heat conductive layer; 205. a silica gel layer; 206. an inner housing; 207. a heat conducting rod; 3. heat dissipation fins; 4. a plug; 401. a seal ring; 402. an adjustment groove; 403. a sealing plate; 404. a through hole; 5. a first pin; 6. a second pin; 7. a protective pad; 8. locking the bolt; 9. fixing the fixture block; 10. a movable clamping block; 1001. an adjusting block; 11. a heat dissipation cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: a high-power aluminum electrolytic capacitor with an auxiliary heat dissipation device comprises a protective shell 1, a capacitor inner body 2 and a plug 4, wherein one end of the protective shell 1 is provided with a first opening 101, the other end of the protective shell 1 is provided with a second opening 102, heat dissipation holes 104 are uniformly arranged on the side wall of the protective shell 1, and the capacitor inner body 2 is arranged in the protective shell 1;

the inner side wall of the protective shell 1 is uniformly provided with limiting sliding grooves 103, the outer wall of the capacitor inner body 2 is uniformly provided with limiting sliding strips 201, the capacitor inner body 2 is detachably inserted into the capacitor inner body 2 in the limiting sliding grooves 103 of the protective shell 1 through the limiting sliding strips 201, and a heat dissipation cavity 11 is arranged between the protective shell 1 and the capacitor inner body 2, so that the protective shell 1 and the capacitor inner body 2 can be conveniently assembled and installed, and meanwhile, when the capacitor inner body 2 is damaged, the protective shell 1 can be recycled;

the center of the inside of the capacitor inner body 2 is provided with a core pack 202, the outside of the core pack 202 is provided with an aluminum cladding 203, the outside of the aluminum cladding 203 is sequentially provided with a heat conduction layer 204 and a silica gel layer 205, the outside of the silica gel layer 205 is provided with an inner shell 206, the outer wall of the heat conduction layer 204 is uniformly provided with heat conduction rods 207, the other ends of the heat conduction rods 207 penetrate through the heat conduction layer 204 and the silica gel layer 205 to be connected with the inner wall of the inner shell 206, the heat conduction layer 204 absorbs the heat of the aluminum cladding 203 and is transmitted to the inner shell 206 through the heat conduction rods 207, and then the heat of the inner shell 206 is radiated to the surrounding environment through heat radiation holes 104 arranged on the heat radiation cavity 11 and the protective shell 1, so that the heat radiation effect;

one end of the capacitor inner body 2 is uniformly provided with radiating fins 3, the radiating fins 3 correspond to the first opening 101, the other end of the capacitor inner body 2 is provided with a first pin 5 and a second pin 6 in parallel, the inner side of the second opening 102 is provided with a plug 4, the edge position of the inner side of the plug 4 is annularly provided with a sealing plate 403, and the plug 4 is provided with through holes 404 corresponding to the first pin 5 and the second pin 6;

the outer diameter of the sealing plate 403 is equal to the inner diameter of the second opening 102, the outer wall of the sealing plate 403 is sleeved with the sealing ring 401, the inner side wall of the second opening 102 is provided with the sealing clamping groove 105, and the sealing ring 401 and the sealing clamping groove 105 are matched with each other, so that the second opening 102 can be sealed after the plug 4 is installed, and the interior is protected from being affected with damp;

the plug 4 of one side of the through hole 404 is provided with a fixed clamping block 9, the plug 4 of the other side of the through hole 404 is provided with a movable clamping block 10 through an adjusting groove 402, the inner side walls of the movable clamping block 10 and the fixed clamping block 9 are respectively paved with a protective pad 7, the bottom of the movable clamping block 10 is provided with an adjusting block 1001, the outer contour of the adjusting block 1001 is smaller than the inner contour of the adjusting groove 402, the movable clamping block 10 is slidably mounted inside the adjusting groove 402 of the plug 4 through the adjusting block 1001, meanwhile, the movable clamping block 10 is fixedly connected with the fixed clamping block 9 through a locking bolt 8, the movable clamping block 10 is fixedly connected with the fixed clamping block 9 through the locking bolt, the first pin 5 and the second pin 6 can be effectively clamped and fixed, and the first pin 5 and the second pin 6 are prevented from falling off from the capacitor inner body 2 under the.

The working principle is as follows: during the use, with first pin 5 and second pin 6 welded fastening, the condenser is in the use, core package 202 produces the heat, heat transfer is to aluminium system covering 203, meanwhile, heat-conducting layer 204 absorbs the heat of aluminium system covering 203, transmit to interior casing 206 through heat conduction pole 207, then through the louvre 104 that sets up on heat dissipation cavity 11 and the protective housing 1 in giving off the heat of interior casing 206 to the surrounding environment through the radiation mode, effectively reach radiating effect, the heat-sinking capability that increases this condenser can effectively prolong the life of this condenser.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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

1. A high-power aluminum electrolytic capacitor with an auxiliary heat dissipation device comprises a protective shell (1), a capacitor inner body (2) and a plug (4), and is characterized in that: one end of the protection shell (1) is provided with a first opening (101), the other end of the protection shell (1) is provided with a second opening (102), heat dissipation holes (104) are uniformly formed in the side wall of the protection shell (1), a capacitor inner body (2) is arranged inside the protection shell (1), heat dissipation fins (3) are uniformly arranged at one end of the capacitor inner body (2), the heat dissipation fins (3) correspond to the first opening (101), first pins (5) and second pins (6) are arranged at the other end of the capacitor inner body (2) in parallel, a plug (4) is installed on the inner side of the second opening (102), a sealing plate (403) is annularly arranged at the edge position of the inner side of the plug (4), and through holes (404) are formed in the positions, corresponding to the first pins (5) and the second pins (6), of the plug (4).

2. The high-power aluminum electrolytic capacitor with the auxiliary heat dissipation device as recited in claim 1, wherein: the capacitor inner body structure is characterized in that limiting sliding grooves (103) are uniformly formed in the inner side wall of the protective shell (1), limiting sliding strips (201) are uniformly arranged on the outer wall of the capacitor inner body (2), the capacitor inner body (2) can be detachably inserted into the inner limiting sliding grooves (103) of the protective shell (1) through the limiting sliding strips (201), and a heat dissipation cavity (11) is formed between the protective shell (1) and the capacitor inner body (2).

3. The high-power aluminum electrolytic capacitor with the auxiliary heat dissipation device as recited in claim 1, wherein: the capacitor is characterized in that a core cladding (202) is arranged at the center of the interior of the capacitor inner body (2), an aluminum cladding (203) is arranged on the outer side of the core cladding (202), a heat conduction layer (204) and a silica gel layer (205) are sequentially arranged on the outer side of the aluminum cladding (203), an inner shell (206) is arranged on the outer side of the silica gel layer (205), heat conduction rods (207) are uniformly arranged on the outer wall of the heat conduction layer (204), and meanwhile the other ends of the heat conduction rods (207) penetrate through the heat conduction layer (204) and the silica gel layer (205) to be connected with the.

4. The high-power aluminum electrolytic capacitor with the auxiliary heat dissipation device as recited in claim 1, wherein: the outer diameter of the sealing plate (403) is equal to the inner diameter of the second opening (102), the outer wall of the sealing plate (403) is sleeved with a sealing ring (401), a sealing clamping groove (105) is formed in the inner side wall of the second opening (102), and the sealing ring (401) is matched with the sealing clamping groove (105).

5. The high-power aluminum electrolytic capacitor with the auxiliary heat dissipation device as recited in claim 1, wherein: the plug (4) on one side of the through hole (404) is provided with a fixed clamping block (9), the plug (4) on the other side of the through hole (404) is provided with a movable clamping block (10) through an adjusting groove (402), and the inner side walls of the movable clamping block (10) and the fixed clamping block (9) are respectively paved with a protective pad (7).

6. The high-power aluminum electrolytic capacitor with the auxiliary heat dissipation device as recited in claim 5, wherein: an adjusting block (1001) is arranged at the bottom of the movable clamping block (10), the outer contour of the adjusting block (1001) is smaller than the inner contour of the adjusting groove (402), the movable clamping block (10) is slidably mounted on the inner side of the adjusting groove (402) of the plug (4) through the adjusting block (1001), and meanwhile the movable clamping block (10) is fixedly connected with the fixed clamping block (9) through a locking bolt (8).