CN210272082U

CN210272082U - Capacitor with good heat dissipation performance

Info

Publication number: CN210272082U
Application number: CN201921750440.3U
Authority: CN
Inventors: 汤珍敏; 汤乐普; 汤晓晖
Original assignee: Zhiming Group Co ltd
Current assignee: Zhiming Group Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-04-07
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses a capacitor with good heat dissipation performance, which relates to the technical field of capacitors and comprises a capacitor core, wherein the capacitor core is provided with an anode lead and a cathode lead, the anode lead and the cathode lead respectively penetrate through the upper end wall of an aluminum shell, the outer wall of the capacitor core is wrapped by a layer of heat dissipation silica gel, a rubber plug is arranged between the outer wall of the top of the heat dissipation silica gel and the inner wall of the upper end of the aluminum shell, the anode lead and the cathode lead respectively penetrate through the rubber plug, and the outer circumferential wall of the heat dissipation silica gel is provided with a heat dissipation device; the heat dissipation device comprises an inner heat absorption pipe spirally wound on the outer circumferential wall of the heat dissipation silica gel and an outer heat absorption pipe spirally wound on the outer circumferential wall of the aluminum shell, and one end of the inner heat absorption pipe is connected with one end of the outer heat absorption pipe; the utility model has the advantages of convenient use, strong stability, good heat dissipation effect and the like.

Description

Capacitor with good heat dissipation performance

Technical Field

The utility model relates to a technical field of condenser, in particular to condenser that heat dispersion is good.

Background

Two conductors close to each other with a layer of non-conductive insulating medium in between constitute the capacitor. When a voltage is applied across the two plates of the capacitor, the capacitor stores charge. The capacitance of the capacitor is numerically equal to the ratio of the amount of charge on one conductive plate to the voltage between the two plates. The basic unit of capacitance of a capacitor is farad (F). The capacitor element is generally denoted by letter C in the circuit diagram. Capacitors play an important role in circuits such as tuning, bypassing, coupling, filtering, etc. The tuning circuit of transistor radio, CD player and recorder is used, and the coupling circuit and by-pass circuit of colour TV set are also used. With the change of electronic information technology, the update speed of digital electronic products is faster and faster, and the production and sales volume of consumer electronic products such as flat panel televisions (LCDs and PDPs), notebook computers, and digital cameras is continuously increasing, which drives the growth of capacitor industry.

Patent application No. CN201721225993.8 discloses an easy-to-radiate capacitor, which is characterized in that a layer of radiating silica gel is wrapped on the outer wall of a capacitor core, and the heat of the capacitor core is transferred to an aluminum shell through a radiating pipe so as to achieve the radiating purpose; however, the heat dissipation effect of the patent is not ideal, the efficiency of transferring heat to the aluminum shell is very low, and capacitor explosion still often occurs in the actual use process.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a condenser that heat dispersion is good is provided for solve the poor problem of condenser radiating effect among the prior art of description in the background art.

In order to achieve the above object, the present invention provides the following technical solutions: a capacitor with good heat dissipation performance comprises a capacitor core, wherein an anode lead and a cathode lead are arranged on the capacitor core, the anode lead and the cathode lead respectively penetrate through the upper end wall of an aluminum shell, the outer wall of the capacitor core is wrapped by a layer of heat dissipation silica gel, a rubber plug is arranged between the outer wall of the top of the heat dissipation silica gel and the inner wall of the upper end of the aluminum shell, the anode lead and the cathode lead respectively penetrate through the rubber plug, and a heat dissipation device is arranged on the outer circumferential wall of the heat dissipation silica gel; the heat dissipation device comprises an inner heat absorption pipe spirally wound on the outer circumferential wall of the heat dissipation silica gel and an outer heat absorption pipe spirally wound on the outer circumferential wall of the aluminum shell, and one end of the inner heat absorption pipe is connected with one end of the outer heat absorption pipe.

Preferably: the bottom outer wall of the heat dissipation silica gel is connected with the bottom inner wall of the aluminum shell through a plurality of first supports, the outer circumferential wall of the heat dissipation silica gel is connected with the inner circumferential wall of the aluminum shell through a second support, and the first support and the second support are both triangular.

Preferably: the first support and the second support are both made of heat conduction materials.

Preferably: the one end of interior heat absorption pipe runs through aluminum hull and communicates with the one end of outer heat absorption pipe, the one end and the oil tank intercommunication of outer heat absorption pipe are kept away from to interior heat absorption pipe, the one end that interior heat absorption pipe was kept away from to outer heat absorption pipe runs through aluminum hull and oil tank intercommunication, and the oil tank sets up in aluminum hull's outer wall, and all is provided with the conduction oil in oil tank, interior heat absorption pipe and the outer heat absorption pipe.

Preferably: the outer circumferential wall of the aluminum shell is provided with a layer of heat conducting plate, and the outer heat absorption pipe and the oil tank are respectively embedded into the heat conducting plate.

The beneficial effect of adopting above technical scheme is:

the heat dissipation device is arranged, heat energy on the surface of the heat dissipation silica gel is transferred to the outer heat absorption tube through the heat transfer oil and the heat transfer oil in the heat dissipation device, the outer heat absorption tube transfers the heat energy to the heat conduction plate, and the heat conduction plate exchanges heat between the heat and air, so that the heat dissipation performance of the capacitor can be effectively improved;

this application still is provided with triangle-shaped's first support and second support, has increased the stability of being connected between heat dissipation silica gel and the aluminum casing.

Drawings

Fig. 1 is a schematic structural view of a capacitor with good heat dissipation performance.

Wherein: the heat dissipation device comprises a capacitor core 10, a positive lead 11, a negative lead 12, a heat dissipation silica gel layer 13, an aluminum shell 14, a rubber plug 15, a heat dissipation device 20, an internal heat absorption pipe 21, an external heat absorption pipe 22, an oil tank 23, a heat conduction plate 24, a first support 25 and a second support 26.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In an embodiment, as shown in fig. 1, in this embodiment, a capacitor with good heat dissipation performance includes a capacitor core 10, an anode lead 11 and a cathode lead 12 are disposed on the capacitor core 10, the anode lead 11 and the cathode lead 12 respectively penetrate through an upper end wall of an aluminum housing 14, an outer wall of the capacitor core 10 is wrapped by a layer of heat dissipation silica gel 13, a rubber plug 15 is disposed between an outer wall of a top of the heat dissipation silica gel 13 and an inner wall of an upper end of the aluminum housing 14, the anode lead 11 and the cathode lead 12 respectively penetrate through the rubber plug 15, and an outer circumferential wall of the heat dissipation silica gel 13 is provided with a heat dissipation device 20; the heat dissipation device 20 includes an inner heat absorption pipe 21 spirally wound on the outer circumferential wall of the heat dissipation silica gel 13, and an outer heat absorption pipe 22 spirally wound on the outer circumferential wall of the aluminum housing 14, and one end of the inner heat absorption pipe 21 is connected with one end of the outer heat absorption pipe 22.

Preferably: the outer wall of the bottom of the heat dissipation silica gel 13 is connected with the inner wall of the bottom of the aluminum shell 14 through a plurality of first supports 25, the outer circumferential wall of the heat dissipation silica gel 13 is connected with the inner circumferential wall of the aluminum shell 14 through a second support 26, and the first supports 25 and the second supports 26 are both triangular.

Preferably: the first bracket 25 and the second bracket 26 are made of heat conducting materials.

Preferably: one end of the inner heat absorption pipe 21 penetrates through the aluminum shell 14 and is communicated with one end of the outer heat absorption pipe 22, one end, far away from the outer heat absorption pipe 22, of the inner heat absorption pipe 21 penetrates through the aluminum shell 14 and is communicated with the oil tank 23, one end, far away from the inner heat absorption pipe 21, of the outer heat absorption pipe 22 is communicated with the oil tank 23, the oil tank 23 is arranged on the outer wall of the aluminum shell 14, and heat conduction oil is arranged in the oil tank 23, the inner heat absorption pipe 21 and the outer heat absorption pipe 22.

Preferably: a heat conducting plate 24 is arranged on the outer circumferential wall of the aluminum shell 14, and the outer heat absorbing pipe 22 and the oil tank 23 are respectively embedded into the heat conducting plate 24.

The specific implementation manner of this embodiment:

when the capacitor core 10 is used, heat generated by the capacitor core 10 can be absorbed by the heat-dissipating silica gel 13, the heat-dissipating silica gel 13 absorbs the heat and then transfers the heat to the internal heat-absorbing pipe 21, the first bracket 25 and the second bracket 26 transfer the heat to the aluminum shell 14, and the aluminum shell 14 transfers the heat to the heat-conducting plate 24 for heat dissipation; after the inner heat absorption tube 21 absorbs heat, the absorbed heat is transferred to the heat conduction oil in the inner heat absorption tube 21, the heat conduction oil moves to the outer heat absorption tube 22 with lower temperature after being heated, so that the heat is taken out, the outer heat absorption tube 22 absorbs the heat energy of the heat conduction oil, and the heat energy absorbed by the outer heat absorption tube 22 is transferred to the heat conduction plate 24 for heat dissipation;

the stability that this application still improves heat dissipation silica gel 13 and aluminium shell 14 and is connected through setting up triangle-shaped first support 25 and second support 26.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.

Claims

1. The utility model provides a condenser that heat dispersion is good, includes the condenser core, be provided with anodal lead wire and negative lead wire on the condenser core, anodal lead wire and negative lead wire run through the upper end wall of aluminum hull respectively, the outer wall parcel one deck heat dissipation silica gel of condenser core, be provided with the rubber buffer between the top outer wall of heat dissipation silica gel and the upper end inner wall of aluminum hull, anodal lead wire and negative lead wire run through the rubber buffer, its characterized in that respectively: the outer circumferential wall of the heat dissipation silica gel is provided with a heat dissipation device; the heat dissipation device comprises an inner heat absorption pipe spirally wound on the outer circumferential wall of the heat dissipation silica gel and an outer heat absorption pipe spirally wound on the outer circumferential wall of the aluminum shell, and one end of the inner heat absorption pipe is connected with one end of the outer heat absorption pipe.

2. The capacitor as claimed in claim 1, wherein the bottom outer wall of the heat-dissipating silica gel is connected to the bottom inner wall of the aluminum case via a plurality of first brackets, the outer circumferential wall of the heat-dissipating silica gel is connected to the inner circumferential wall of the aluminum case via a plurality of second brackets, and the first and second brackets are triangular.

3. The capacitor of claim 2, wherein the first and second brackets are made of a thermally conductive material.

4. The capacitor with good heat dissipation performance as recited in claim 3, wherein one end of the inner heat absorption pipe penetrates through the aluminum case and is communicated with one end of the outer heat absorption pipe, one end of the inner heat absorption pipe, which is far away from the outer heat absorption pipe, is communicated with the oil tank, one end of the outer heat absorption pipe, which is far away from the inner heat absorption pipe, penetrates through the aluminum case and is communicated with the oil tank, the oil tank is disposed on the outer wall of the aluminum case, and heat conduction oil is disposed in the oil tank, the inner heat absorption pipe and the outer heat absorption pipe.

5. The capacitor of claim 4, wherein a heat conducting plate is disposed on the outer circumferential wall of the aluminum casing, and the outer heat absorbing pipe and the oil tank are respectively embedded in the heat conducting plate.