CN211404298U

CN211404298U - Capacitor with a capacitor element

Info

Publication number: CN211404298U
Application number: CN202020150413.9U
Authority: CN
Inventors: 赵莉莉
Original assignee: China Rollay Electric Shanghai Co ltd
Current assignee: China Rollay Electric Shanghai Co ltd
Priority date: 2020-02-03
Filing date: 2020-02-03
Publication date: 2020-09-01
Anticipated expiration: 2030-02-03

Abstract

The utility model discloses an electric capacity, include: a capacitor; the heat absorbing piece is used for absorbing heat of the capacitor and is arranged in contact with the capacitor; the fixing piece is used for fixing the heat absorbing piece and the capacitor; the heat conducting piece is connected with the heat absorbing piece and is used for conducting heat; the heat dissipation piece is connected with the heat conduction piece and used for dissipating heat. The utility model has simple structure, and can realize the heat dissipation of the capacitor through the sufficient contact between the heat absorbing piece and the capacitor; the size of the end face of the heat absorbing piece, which is in contact with the capacitor, is equal to or smaller than the surface area of the capacitor, so that the size of the heat dissipation area of the capacitor can be adjusted; the contact area of the heat absorbing piece and the capacitor is coated with heat conducting grease, so that heat conduction is accelerated, and the heat dissipation efficiency of the capacitor is improved.

Description

Capacitor with a capacitor element

Technical Field

The utility model relates to an electric capacity.

Background

The capacitor component usually generates a large amount of heat in the use process, and the quality of the capacitor in the use process and the service life of the capacitor are directly determined by the quality of the working stability of the capacitor and the service life of the capacitor in the application environment of on-rail vehicle and power grid power transmission and distribution which needs continuous work. Therefore, the capacitor element must be able to dissipate heat better.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve above-mentioned technical problem, provide an electric capacity.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a capacitor, comprising:

a capacitor;

the heat absorbing piece is used for absorbing heat of the capacitor and is arranged in contact with the capacitor;

the fixing piece is used for fixing the heat absorbing piece and the capacitor;

the heat conducting piece is connected with the heat absorbing piece and is used for conducting heat;

the heat dissipation piece is connected with the heat conduction piece and used for dissipating heat.

According to an embodiment of the invention, the heat absorbing member is arranged to surround the capacitor. According to an embodiment of the present invention, the heat absorbing member and the end surface contacted by the capacitor are coated with a heat conducting grease, the size of the end surface contacted by the heat absorbing member and the capacitor is equal to or less than the surface area of the capacitor, and the thickness of the heat conducting grease is 1.8 mm-2.2 mm.

According to the utility model discloses an embodiment, the heat conduction spare include linkage segment and effect section, the one end of linkage segment links to each other with the heat absorbing element, the other end and the effect section of linkage segment, the effect section sets up in the radiating piece.

According to an embodiment of the present invention, the connecting section is straight and the action section is serpentine.

According to the utility model discloses an embodiment, heat-conducting member be the pipe fitting, the material of heat-conducting member is red copper.

According to the utility model discloses an embodiment, the radiating piece include a plurality of fin, each fin arranges the setting in order, the fin is around the setting of effect section, the surface of fin and the outer surface contact of effect section.

According to an embodiment of the present invention, the fixing member includes a hoop, and the hoop is sleeved on and fastened to the outside of the heat absorbing member.

The utility model has simple structure, and can realize the heat dissipation of the capacitor through the sufficient contact between the heat absorbing piece and the capacitor; the size of the end face of the heat absorbing piece, which is in contact with the capacitor, is equal to or smaller than the surface area of the capacitor, so that the size of the heat dissipation area of the capacitor can be adjusted; the contact area of the heat absorbing piece and the capacitor is coated with heat conducting grease, so that heat conduction is accelerated, and the heat dissipation efficiency of the capacitor is improved. The radiating fins are sequentially arranged at intervals to form a grid shape, so that the actual effective radiating area is increased; the heat-conducting piece adopts the red copper material, has higher heat conductivity, has avoided using traditional water-cooling mode, has simplified cooling system's structure, has increased the utility model discloses the reliability of working under outdoor complicated operating mode.

Drawings

Fig. 1 is a side view of the present invention;

figure 2 is a front view, partly in section, of the belt a-a of figure 1.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

as shown in fig. 1 and fig. 2, the capacitor of the present embodiment includes: a capacitor 1; the heat absorbing piece 2 is used for absorbing heat of the capacitor 1, and the heat absorbing piece 2 is arranged in contact with the capacitor 1; the fixing piece 3 is used for fixing the heat absorbing piece 2 and the capacitor 1; a heat conducting member 4, the heat conducting member 4 being connected to the heat absorbing member 2, the heat conducting member 4 being for heat conduction; the heat dissipation member 5, the heat dissipation member 5 is connected with the heat conduction member 4, and the heat dissipation member 5 is used for heat dissipation.

The heat absorbing member 2 wraps the arrangement surface of the capacitor 1. The heat absorbing member 2 is a surface-passivated aluminum material including the periphery and bottom surface of the capacitor 1 as shown in fig. 1 and 2. The end face of the heat absorbing piece 2, which is in contact with the capacitor 1, is coated with heat conducting grease, the size of the end face of the heat absorbing piece 2, which is in contact with the capacitor 1, is equal to or smaller than the surface area of the capacitor 1, and the thickness of the heat conducting grease is 1.8 mm-2.2 mm.

The heat conducting element 4 comprises a connecting section 6 and an acting section 7, one end of the connecting section 6 is connected with the heat absorbing element 2, the other end of the connecting section 6 is connected with the acting section 7, and the acting section 7 is arranged in the heat radiating element 5. The connecting section 6 is linear, and the acting section 7 is serpentine. The heat conducting part 4 is a pipe fitting, the connecting section 6 is a linear pipe fitting, and the acting section 7 is a snake-shaped pipe fitting. The heat conducting member 4 is made of red copper. The radiating piece 5 comprises a plurality of radiating fins 8, the radiating fins 8 are sequentially arranged, the radiating fins 8 are arranged around the action section 7, and the outer surfaces of the radiating fins 8 are in contact with the outer surface of the action section 7. The fixing of the heat sink 8 is provided by conventional techniques. The fixing member 3 includes an anchor ear, and the anchor ear is sleeved and fastened outside the heat absorbing member 2.

In use, when the capacitor 1 generates heat, the heat generated by the capacitor 1 is absorbed by the heat absorbing member 2. The heat is then conducted from the connecting section 6 of the heat-conducting element 4 to the active section 7. The active segment 7 in the middle of the heat sink 8 conducts heat to the heat sink 8, after which the heat is dissipated from the heat sink 8 into the air. In this way, heat dissipation of the capacitor 1 is achieved.

The utility model has simple structure, and can realize the heat dissipation of the capacitor 1 through the sufficient contact between the heat absorbing piece 2 and the capacitor 1; the size of the end face of the heat absorbing piece 2, which is in contact with the capacitor 1, is equal to or smaller than the surface area of the capacitor 1, so that the size of the heat dissipation area of the capacitor 1 can be adjusted; the contact area of the heat absorbing member 2 and the capacitor 1 is coated with heat conducting grease, so that the heat conduction is accelerated, and the heat dissipation efficiency of the capacitor 1 is improved. The radiating fins 8 are sequentially arranged at intervals to form a grid shape, so that the actual effective radiating area is increased; the heat-conducting piece 4 adopts red copper material, has higher heat conductivity, has avoided using traditional water-cooling mode, has simplified cooling system's structure, has increased the utility model discloses the reliability of working under outdoor complicated operating mode.

The embodiments of the present invention are only used for illustration, and do not limit the scope of the claims, and other substantially equivalent alternatives that may be conceived by those skilled in the art are within the scope of the present invention.

Claims

1. A capacitor, comprising:

a capacitor;

the fixing piece is used for fixing the heat absorbing piece and the capacitor;

2. A capacitor according to claim 1, wherein said heat absorbing member is capacitively disposed about said capacitor.

3. A capacitor according to claim 1 or 2, wherein the end surface of the heat absorbing member contacting the capacitor is coated with a thermal grease, the size of the end surface of the heat absorbing member contacting the capacitor is equal to or smaller than the surface area of the capacitor, and the thickness of the thermal grease is 1.8mm to 2.2 mm.

4. A capacitor according to claim 1, wherein the heat conducting member comprises a connecting section and an active section, one end of the connecting section is connected to the heat absorbing member, the other end of the connecting section is connected to the active section, and the active section is disposed in the heat dissipating member.

5. A capacitor according to claim 4, wherein the connecting section is straight and the active section is serpentine.

6. The capacitor of claim 5 wherein said heat conducting member is a tube and said heat conducting member is made of copper.

7. The capacitor of claim 4 wherein said heat sink comprises a plurality of fins, each fin being arranged in a series, the fins being arranged around the active segment, the outer surfaces of the fins being in contact with the outer surface of the active segment.

8. The capacitor of claim 1 wherein the securing member includes a hoop that is disposed around and secured to the exterior of the heat sink.