CN211016798U

CN211016798U - Water-cooled screw terminal type electrolytic capacitor

Info

Publication number: CN211016798U
Application number: CN201922250811.8U
Authority: CN
Inventors: 朱健雄
Original assignee: SHENZHEN BISHIDA ELECTRONICS CO Ltd
Current assignee: SHENZHEN BISHIDA ELECTRONICS CO Ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-07-14
Anticipated expiration: 2029-12-16

Abstract

The utility model discloses a water-cooled screw terminal type electrolytic capacitor, what solve is the poor problem of current electrolytic capacitor radiating effect. This product includes that electrical insulation spare, condenser roll core, fixed sleeve and packing ring, electrical insulation spare is the boss form and electrical insulation spare's intermediate position is provided with first through-hole, the condenser rolls up the core and installs in electrical insulation spare, fixed sleeve installs in electrical insulation spare's first through-hole and be provided with the second through-hole on the fixed sleeve, install first fastener in the second through-hole and the lower extreme of first fastener inserts in the first through-hole, electrical insulation spare's lower extreme is provided with the screw thread and the packing ring is established in the junction of screw thread and electrical insulation spare, the fixed sleeve is intraductal to be equipped with the coolant liquid. This product reasonable in design, simple structure, through the cooperation of parts such as coolant liquid, fixed sleeving, the coolant liquid can flow through from, adopts water-cooled or refrigeration piece refrigeration to reduce the electric capacity temperature, improves electric capacity ripple resistance ability and life-span.

Description

Water-cooled screw terminal type electrolytic capacitor

Technical Field

The invention relates to the field of electrolytic capacitors, in particular to a water-cooled screw terminal type electrolytic capacitor.

Background

The electrolytic capacitor is one kind of capacitor, the metal foil is the positive electrode (aluminum or tantalum), the oxide film (aluminum oxide or tantalum pentoxide) close to the metal close to the positive electrode is the dielectric, the cathode is composed of conductive material, electrolyte (the electrolyte can be liquid or solid) and other materials, and the electrolytic capacitor is named because the electrolyte is the main part of the cathode.

The existing electrolytic capacitors are all air-cooled, so that temperature accumulation in the middle of a winding core of the electrolytic capacitor is caused, the heat dissipation effect is poor, ripple current is a basic reason for causing heat generation, the heat generation is also a reason for influencing the service life of the capacitor, and people conduct research on related aspects.

Disclosure of Invention

An object of an embodiment of the present invention is to provide a water-cooled screw terminal type electrolytic capacitor, so as to solve the problems in the background art.

In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:

the utility model provides a water-cooled screw terminal type electrolytic capacitor, including electrical insulation, the condenser rolls up the core, fixed sleeve and packing ring, electrical insulation is the boss form and electrical insulation's intermediate position is provided with first through-hole, the condenser rolls up the core and installs in electrical insulation, fixed sleeve installs in electrical insulation's first through-hole and be provided with the second through-hole on the fixed sleeve, install first fastener in the second through-hole and the lower extreme of first fastener inserts in the first through-hole, electrical insulation's lower extreme is provided with the screw thread and the packing ring sets up in the junction of screw thread and electrical insulation, fixed sleeve is intraductal to be equipped with the coolant liquid, through the coolant liquid, the cooperation of parts such as fixed sleeve, the coolant liquid can flow through from here, adopt water-cooled or refrigeration piece refrigeration to reduce the electric capacity temperature, improve the ripple resistance ability of electric capacity. The original process flow is as follows: cutting → nailing and coiling → impregnating → assembling special buckle sleeve → aging → testing, the process flow of the product is as follows: cutting → nailing roll → impregnation → assembling special buckle sleeve → assembling the refrigeration piece → aging → testing → checking the refrigeration piece sealing.

As a further scheme of the embodiment of the invention: the screw thread adopts second fastener and packing ring locking, and the fastness of connection is good.

As a further scheme of the embodiment of the invention: the first fastener adopts hexagon socket head cap screw, and the second fastener adopts hexagon lock nut, and the market is easily bought, excellent in use effect.

As a further scheme of the embodiment of the invention: the size of first through-hole and second through-hole all is close with the condenser core of rolling up, makes the volume minimum under the prerequisite of guaranteeing the result of use, compact structure.

As a further scheme of the embodiment of the invention: the fixing sleeve is made of pure aluminum, and has the advantages of low price, convenient processing and good use effect.

As a further scheme of the embodiment of the invention: the nominal diameter of the thread is 12mm,

as a further scheme of the embodiment of the invention: still be provided with the sealing member on the fixed sleeve pipe, sealed effectual.

As a further scheme of the embodiment of the invention: the cooling liquid is replaced by the refrigerating sheet and the radiating sheet is arranged outside the electric insulating part, so that the temperature of the capacitor can be reduced.

The preparation method of the product comprises the following steps: cutting, nailing and rolling, impregnating, riveting a cover, perforating a pipe, sealing by adopting a sealing element comprising a gasket, aging and testing.

Compared with the prior art, the embodiment of the invention has the beneficial effects that:

the product has reasonable design and simple structure, the cooling liquid can flow through the product by matching the components such as the cooling liquid, the fixed sleeve and the like, and the water-cooled type or the refrigerating sheet is adopted for refrigerating to reduce the temperature of the capacitor, improve the ripple resistance of the capacitor and prolong the service life of the capacitor;

the fixed sleeve can be changed into a heat pipe structure in the product, the ripple resistance of the capacitor can be improved, the service life of the capacitor can be prolonged, and the capacitor is suitable for different working environments.

Drawings

Fig. 1 is a plan view of a water-cooled screw terminal type electrolytic capacitor.

FIG. 2 is a sectional view of a water-cooled screw terminal type electrolytic capacitor at A.

Fig. 3 is an exploded view of fig. 2.

FIG. 4 is a top view of a fixing sleeve in a water-cooled screw terminal type electrolytic capacitor.

FIG. 5 is a plan view of an electrical insulator in the water-cooled screw terminal type electrolytic capacitor.

Wherein: 1-first fastener, 2-retaining bushing, 3-electrical insulator, 4-thread, 5-washer, 6-second fastener.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Example 1

A water-cooled screw terminal type electrolytic capacitor comprises an electric insulating part 3, a capacitor winding core, a fixed sleeve 2 and a gasket 5, the electric insulator 3 is boss-shaped, a first through hole is arranged at the middle position of the electric insulator 3, the capacitor winding core is arranged in the electric insulator 3, the fixing sleeve 2 is arranged in the first through hole of the electric insulator 3, a second through hole is arranged on the fixing sleeve 2, a first fastening piece 1 is arranged in the second through hole, the lower end of the first fastening piece 1 is inserted into the first through hole, the lower end of the electric insulating part 3 is provided with a thread 4, a gasket 5 is sleeved at the joint of the thread 4 and the electric insulating part 3, the fixed sleeve 2 is filled with cooling liquid, through the cooperation of parts such as coolant liquid, fixed sleeving 2, the coolant liquid can flow through from it, adopts water-cooled or refrigeration piece refrigeration to reduce the electric capacity temperature, improves electric capacity ripple resistance ability and life-span.

In order to ensure the connection firmness, the thread 4 is locked with the washer 5 by using the second fastening piece 6.

Furthermore, the first fastener 1 adopts a hexagon socket head screw, the second fastener 6 adopts a hexagon lock nut, and the market is easy to purchase, and the using effect is good.

Further, the size of first through-hole and second through-hole all is close with the condenser core of rolling up, makes the volume minimum under the prerequisite of guaranteeing the result of use, compact structure.

Furthermore, the fixed sleeve 2 is also provided with a sealing element, so that the sealing effect is good.

Example 2

In order to facilitate processing, the fixed sleeve 2 is made of pure aluminum, and has the advantages of low price, convenient processing and good use effect.

Further, the nominal diameter of the thread 4 is 12mm,

further, replacing the cooling liquid with a cooling fin and providing a cooling fin outside the electrical insulator 3 may reduce the temperature of the capacitor.

The preparation method of the product comprises the following steps: cutting, nailing, impregnating, riveting, perforating, sealing with a seal comprising a gasket 5, ageing and testing

Example 3

The difference between the product and the embodiment 1 is that the fixing sleeve 2 is set to be a heat pipe structure, so that heat can be quickly led out, and external air cooling or water cooling heat dissipation is adopted.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a water-cooled screw terminal type electrolytic capacitor, includes electrical insulation spare (3), the capacitor rolls up core, fixed sleeve (2) and packing ring (5), electrical insulation spare (3) are the boss form and the intermediate position of electrical insulation spare (3) is provided with first through-hole, the capacitor rolls up the core and installs in electrical insulation spare (3), a serial communication port, fixed sleeve (2) are installed in the first through-hole of electrical insulation spare (3) and are provided with the second through-hole on fixed sleeve (2), install first fastener (1) in the second through-hole and the lower extreme of first fastener (1) inserts in the first through-hole, the lower extreme of electrical insulation spare (3) is provided with screw thread (4) and packing ring (5) cover is established in the junction of screw thread (4) and electrical insulation spare (3), be equipped with the coolant liquid in fixed sleeve (2).

2. The water-cooled screw-terminal type electrolytic capacitor according to claim 1, wherein the thread (4) is locked with a washer (5) using a second fastening member (6).

3. The water-cooled screw terminal type electrolytic capacitor according to claim 1, wherein the first fastening member (1) employs a socket head screw.

4. The water-cooled screw-terminal type electrolytic capacitor according to claim 2, wherein the second fastening member (6) employs a hexagonal lock nut.

5. The water-cooled screw terminal type electrolytic capacitor according to claim 1, wherein a sealing member is further provided on the fixing sleeve (2).

6. The water-cooled screw-terminal type electrolytic capacitor according to claim 1 or 3, wherein the first through-hole and the second through-hole are each sized close to a capacitor winding core.

7. The water-cooled screw terminal type electrolytic capacitor according to claim 1, characterized in that the cooling liquid is replaced with a cooling fin and a heat sink is provided outside the electrical insulator (3).