CN202042363U

CN202042363U - Capacitor with low-thermal-resistance structure

Info

Publication number: CN202042363U
Application number: CN 201120091661
Authority: CN
Inventors: 陈榕; 江海波; 刘信荣
Original assignee: SHENGYE ELECTRICAL APPLIANCES CO Ltd SHUNDE DISTRICT FOSHAN CITY
Current assignee: Shengye Electric Co., Ltd.
Priority date: 2011-03-31
Filing date: 2011-03-31
Publication date: 2011-11-16
Anticipated expiration: 2021-03-31

Abstract

The utility model relates to a capacitor with a low-thermal-resistance structure, which comprises a shell; a wiring terminal is arranged at the top end of the shell, an inner cavity of the shell is provided with a core, a gap is arranged at the center of the core, a heat conducting rod penetrates through and is inserted into the core and is clung with the inner wall of the gap, the heat conducting rod extends to the bottom surface of the inner cavity of the shell corresponding to the bottom end of the heat conducting rod and is connected with a heat conducting plate, the bottom and the periphery of the heat conducting plate respectively extend to the bottom surface and the inner wall of the shell and is abutted against one another, and a heat conducting body consisting of the heat conducting rod and the heat conducting plate can be made of any material with good heat conducting property; and when the capacitor is in working, heat generated by the core of the capacitor is rapidly transmitted to the shell of the capacitor through the heat conducting body consisting of the heat conducting rod and the heat conducting plate in a heat transmitting way and is efficiently emitted through the shell so as to reduce the running temperature of the core of the capacitor, avoid capacitor failure caused by the fact that the core is prematurely in breakdown, and increase the current-carrying capacity of the capacitor.

Description

A kind of capacitor with low thermal resistance structure

Technical field

The utility model relates to the electric capacitor technical field, especially a kind of simple in structure, capacitor with low thermal resistance structure that thermal diffusivity is good.

Background technology

At present, there is following shortcoming in the large-current electric container of being sold on the market: in the capacitor running, after temperature raise, the heat that is produced can't distribute fast, causes the capacitor premature failure, reduced the capacitor current capacity.

Summary of the invention

The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, and provides a kind of simple and reasonable for structure, and radiating rate is fast, the capacitor with low thermal resistance structure of good heat dissipation effect.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of capacitor with low thermal resistance structure, comprise housing, the housing top is provided with binding post, the housing inner chamber is provided with fuse, the space is left at the fuse center, it is characterized in that, one heat conductive rod intert in the fuse itself and be close to the space inwall, corresponding heat conductive rod bottom extends to housing inner chamber bottom surface and is connected with heat-conducting plate, heat-conducting plate bottom and periphery are respectively to housing inner chamber bottom surface and the extension of inwall direction and offset, the heat carrier that heat conductive rod and heat-conducting plate are formed can be the good any materials of heat conductivility, when capacitor is worked, the heat that capacitor body is produced is delivered to capacitor casing by the heat carrier of being made up of heat conductive rod and heat-conducting plate fast with thermaltransmission mode, efficiently distribute by housing, reduce the capacitor body operating temperature, avoid fuse breakdown too early and cause capacitor to lose efficacy, and improve the capacitor current capacity.

The utility model can also adopt following technical measures to solve: as further improving, described heat conductive rod and heat-conducting plate are whole shape, and heat conductive rod and heat-conducting plate also can connect to form by tight connected mode.

Described heat conductive rod two ends extend the upper and lower end face of fuse, heat conductive rod near the upper and lower end face of fuse is provided with annular groove, in actual applications, and when heat conductive rod adopts the metal highly heat-conductive material, annular groove makes between heat conductive rod and the capacitor body space inwall and separates, and reaches insulation effect.

Described heat conductive rod outer wall is provided with heat pipe.

Have axocoel in the described heat conductive rod, axocoel extends to the heat-conducting plate bottom surface.

The beneficial effects of the utility model are: the capacitor with low thermal resistance structure of the present utility model, when capacitor is worked, the heat that capacitor body is produced is delivered to capacitor case by the heat carrier of being made up of heat conductive rod and heat-conducting plate fast with thermaltransmission mode, efficiently distribute by shell, reduce the capacitor body operating temperature, avoid fuse too early breakdown and cause capacitor to lose efficacy, and improve the capacitor current capacity.

Description of drawings

Fig. 1 is the structural representation that the utility model lacks heat conductive rod and heat-conducting plate.

Fig. 2 is the structural representation that the utility model is set up heat conductive rod and heat-conducting plate.

Fig. 3 is the structural representation of heat conductive rod and heat-conducting plate among the utility model first embodiment.

Fig. 4 is the heat conductive rod of the utility model first embodiment hollow form and the structural representation of heat-conducting plate.

Fig. 5 is the structural representation of heat conductive rod and heat-conducting plate among the utility model second embodiment.

Fig. 6 is the heat conductive rod of the utility model second embodiment hollow form and the structural representation of heat-conducting plate.

Fig. 7 is the structural representation of the utility model the 3rd embodiment.

Fig. 8 is the structural representation of heat conductive rod and heat-conducting plate among the utility model the 3rd embodiment.

Fig. 9 is the heat conductive rod of the utility model the 3rd embodiment hollow form and the structural representation of heat-conducting plate.

Figure 10 is the structural representation of heat conductive rod and heat-conducting plate among the utility model the 4th embodiment.

Figure 11 is the structural representation of the utility model the 4th embodiment hollow form heat conductive rod and heat-conducting plate.

Embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

First embodiment: as shown in Figure 1 to Figure 3, a kind of capacitor with low thermal resistance structure, comprise housing 1, housing 1 top is provided with binding post 2, housing 1 inner chamber 101 is provided with fuse 3, space 4 is left at fuse 3 centers, it is characterized in that, one heat conductive rod 5 intert in the fuse 3 itself and be close to space 4 inwalls 401, corresponding heat conductive rod 5 bottoms extend to housing 1 inner chamber, 101 bottom surfaces and are connected with heat-conducting plate 6, heat-conducting plate 6 bottoms and periphery are extended and are offseted to housing 1 inner chamber, 101 bottom surface 101-1 and inwall 101-2 direction respectively, the heat carrier that heat conductive rod 5 and heat-conducting plate 6 are formed can be the good any materials of heat conductivility, when capacitor is worked, the heat that capacitor body 3 is produced is delivered to capacitor casing 1 by the heat carrier of being made up of heat conductive rod 5 and heat-conducting plate 6 fast with thermaltransmission mode, efficiently distribute by housing 1, reduce capacitor body 3 operating temperatures, avoid fuse 3 breakdown too early and cause capacitor to lose efficacy, also improve the capacitor current capacity, the heat conductive rod 5 and the heat-conducting plate 6 of present embodiment can be connected by tight connected mode and form.

As the further improvement of first embodiment, as shown in Figure 4, have axocoel 503 in the described heat conductive rod 5, axocoel 503 extends to heat-conducting plate 6 bottom surfaces.

Second embodiment: as shown in Figure 5, its structure is similar to first embodiment, and difference is that described heat conductive rod 5 is whole shape with heat-conducting plate 6.

As the further improvement of second embodiment, as shown in Figure 6, have axocoel 503 in the described heat conductive rod 5, axocoel 503 extends to heat-conducting plate 6 bottom surfaces.

The 3rd embodiment: as shown in Figure 7 and Figure 8, its structure is similar to first embodiment, difference is, 5 liang of ends of described heat conductive rod 501,502 extend fuse 3 upper and lower end faces 301,302, be provided with annular groove 7 near the heat conductive rod 5 in fuse 3 upper and lower end faces 301,302 spaces 4, in actual applications, when heat conductive rod 5 adopts the metal highly heat-conductive material, the effect of this annular groove 7 is to make between heat conductive rod 5 and capacitor body 3 spaces 4 inwalls 401 to separate, avoid the electric conductor of fuse 3 directly to contact, reach insulation effect with heat conductive rod 5.

As the further improvement of the 3rd embodiment, as shown in Figure 9, have axocoel 503 in the described heat conductive rod 5, axocoel 503 extends to heat-conducting plate 6 bottom surfaces.

The 4th embodiment: as shown in figure 10, its structure is similar to first embodiment, difference is, described heat conductive rod 5 outer walls are provided with

heat pipe

8,8 liang of distal end faces of heat pipe constitute annular groove 7 equally between 5 liang of distal end faces of heat conductive rod, can reach the insulation effect that embodiment three is mentioned equally.

As the further improvement of the 4th embodiment, as shown in figure 11, have axocoel 503 in the described heat conductive rod 5, axocoel 503 extends to heat-conducting plate 6 bottom surfaces.

As above-mentioned the 5th embodiment: the utility model radiating mode can also adopt hot pipe technique, the operation principle of hot pipe technique is the Rapid Thermal hereditary property that has made full use of heat-conduction principle and refrigeration filling, seeing through heat pipe is delivered to the heat of thermal objects outside the thermal source rapidly, according to this characteristic, the space 4 of fuse 3 of the present utility model is arranged with heat pipe, heat pipe outer tube wall and fuse 3 spaces 4 inwalls 401 are close to, the heat pipe bottom can be extended out fuse 3 lower surfaces 302 and is connected with heat-conducting plate, as when extending to lower surface 302, the heat-conducting plate periphery contacts with bottom surface 101-1 with housing 1 inner chamber 101 inwall 101-2 respectively with the bottom surface and offsets, when capacitor is worked, utilize heat pipe principle, make heat that capacitor body 3 produced by being delivered to capacitor casing 1 fast with thermaltransmission mode by heat pipe and heat-conducting plate, efficiently distribute by housing 1, can reach the quick heat radiating effect equally.

As above-mentioned the 6th embodiment: the utility model radiating mode can also adopt water-cooled or wind-cooling heat dissipating technology to be specially: the heat conductive rod one or both ends of hollow are extended housing 1 outside and are connected water-cooled or air-cooled radiator, utilize water or air as heat exchange medium, fuse 3 heats are given out outside the housing 1 fast, and radiating effect is better.

Above-described specific embodiment only is the utility model preferred embodiment, and the equivalent arrangements of being done according to the utility model claim all should be technology of the present utility model and contains such as.

Claims

1. capacitor with low thermal resistance structure, comprise housing (1), housing (1) top is provided with binding post (2), housing (1) inner chamber (101) is provided with fuse (3), space (4) is left at fuse (3) center, it is characterized in that, one heat conductive rod (5) intert in the fuse (3) itself and be close to space (4) inwall (401), corresponding heat conductive rod (5) bottom extends to housing (1) inner chamber (101) bottom surface and is connected with heat-conducting plate (6), and past respectively housing (1) inner chamber (101) bottom surface (101-1) of heat-conducting plate (6) bottom and periphery and inwall (101-2) direction are extended and offseted.

2. according to the described capacitor of claim 1, it is characterized in that described heat conductive rod (5) is whole shape with heat-conducting plate (6) with low thermal resistance structure.

3. according to the described capacitor of claim 1 with low thermal resistance structure, it is characterized in that, described heat conductive rod (5) two ends (501,502) extend the upper and lower end face of fuse (3) (301,302), and the heat conductive rod (5) of the close upper and lower end face of fuse (3) (301,302) is provided with annular groove (7).

4. according to the described capacitor of claim 1, it is characterized in that described heat conductive rod (5) outer wall is provided with heat pipe (8) with low thermal resistance structure.

5. according to claim 1 or 2 or 3 or 4 described capacitors, it is characterized in that have axocoel (503) in the described heat conductive rod (5), axocoel (503) extends to heat-conducting plate (6) bottom surface with low thermal resistance structure.