CN105140030A - Light abnormal material housing built-in type capacitor with improved heat dissipation ability - Google Patents
Light abnormal material housing built-in type capacitor with improved heat dissipation ability Download PDFInfo
- Publication number
- CN105140030A CN105140030A CN201510612665.2A CN201510612665A CN105140030A CN 105140030 A CN105140030 A CN 105140030A CN 201510612665 A CN201510612665 A CN 201510612665A CN 105140030 A CN105140030 A CN 105140030A
- Authority
- CN
- China
- Prior art keywords
- foreign material
- wall portion
- material shell
- metal
- capacitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention provides a light abnormal material housing built-in type capacitor with improved heat dissipation ability. The capacitor comprises capacitor elements 1, a bus bar 3 and an abnormal material housing 100. Each of the capacitor elements 1 is formed by a reeled-up dielectric film. Conductive thermal spraying faces are formed on two sides of each of the capacitor elements. The bus bar is electrically connected with two sides of the thermal spraying faces of the capacitor elements. The abnormal material housing is arranged in a combination body of the capacitor elements and the bus bar, and is formed by a plastic part and metal materials whose thermal conductivity is higher than that of the plastic material. All of or at least one part of the wall face of the abnormal material housing 100 are/is metal parts.
Description
Technical field
The foreign material shell internally-arranged type capacitor that the present invention relates to foreign material shell internally-arranged type capacitor or be made up of the foreign material of metal and plastics.
Background technology
Generally speaking, electric equipment with, enter and be widely used at various industrial field with, device for electric container etc. mutually.This capacitor uses the plastic films such as polyester (PET) resin, polypropylene (PP) resin, PEN (PEN) resin, Merlon (PC) resin, polyphenylene sulfide (PPS) resin as dielectric, at the one or both sides of plastic film, batch the deposited film that deposited metal, on the two sides of the deposited film batched, thermal spraying is carried out to zinc, kirsite, tin or 1 zinc, 2 tin, the thermal spraying face of making, manufactures capacitor element.The static capacity of capacitor there are differences according to the purposes of capacitor, thus in different N pole busbars and P pole busbar, the number of capacitor element (hereinafter referred to as element) is added and subtracted and wiring, manufacture capacitor, wherein, the element of the capacitor wiring lesser amt of low capacity, the multiple element of large value capacitor wiring and manufacture capacitor.
Hybrid vehicle, electric automobile, hydrogen cell automobile, new regeneration inverter electricity container enclosure material in the past, injection of plastic, PPS, PBT, ABS, PC etc. manufacture capacitor.1) there is charging and discharging when switching in the inverter of hybrid power and electric automobile, along with at capacitor internal element, heat occurs, and by capacitor busbar, shell and releasing heat, there is the problem of heat radiation.2) the shaping material of capacitor is epoxy resin, polyurethane, silicones etc., shell is non-conductor plastics, thus pyroconductivity is low, the heat that capacitor element occurs fully can not be discharged into outside, thus capacitor internal temperature rises, capacitor life-span shortens, or due to film deterioration, can occur heat-resisting bad.With regard to capacitor life-span factor, the difference in life-span occurs according to the voltage of temperature and use, thus the heat generation characteristic of capacitor and heat sinking function are the key factors determining the life-span.
Summary of the invention
(technical problem that will solve)
The present invention aims to provide a kind of raising thermal diffusivity and light-weighted foreign material shell internally-arranged type capacitor, by importing sheet metal part in capacitor case, thus the thermal capacitance occurred at capacitor internal can be changed places and be discharged to the outside, prevent because high temperature during running causes the lost of life of capacitor.
The present invention aims to provide a kind of raising thermal diffusivity and light-weighted capacitor/IGBT/ inverter shell combination, and in the part near inverter radiator, the adjacent sheet metal part installing capacitor case additional, easily can carry out capacitor internal heat radiation.
(means of dealing with problems)
A kind of raising thermal diffusivity and light-weighted foreign material shell internally-arranged type capacitor, comprising:
Capacitor element 1, it is batched by dielectric film and is formed, and is formed with conductive thermal spraying face in both sides;
Busbar 3, it is electrically connected in the both sides in the thermal spraying face of described capacitor element 1;
Foreign material shell 100, its built-in described capacitor element and busbar combination;
Described foreign material shell 100 is made up of plastic section and the thermal conductivity metal material higher than described plastic section material, forms the whole of described foreign material shell (100) wall or is metal section at least partially.
(invention effect)
According to the present invention, there is provided a kind of and improve thermal diffusivity and light-weighted foreign material shell internally-arranged type capacitor and capacitor/IGBT/ inverter shell combination, by importing sheet metal part in capacitor case, thus the thermal capacitance occurred at capacitor internal can be changed places and be discharged to the outside, prevent because high temperature during running causes the lost of life of capacitor.
The present invention is in the part near inverter radiator, the adjacent sheet metal part installing capacitor case additional, makes easily to carry out capacitor internal heat radiation, in addition, make the sheet metal part of shell be positioned at busbar and adjoin position, be configured so that the heat occurred from busbar is more fully discharged.
Accompanying drawing explanation
Fig. 1 is the raising thermal diffusivity of one embodiment of the invention and light-weighted foreign material shell internally-arranged type capacitor pie graph.
Fig. 2 is the pie graph that the present invention improves thermal diffusivity and light-weighted foreign material shell internally-arranged type capacitor, IGBT, inverter shell combination.
Symbol description
1: capacitor element
3: busbar
10: metal wall portion
11: metal one wall
13: metal sidewall
20: plastics wall portion
21: plastics one wall
23: plastic sidewalls
100: shell
200: inverter shell
300: cooling fluid
Embodiment
With reference to the accompanying drawings, the shell internally-arranged type capacitor of the raising thermal diffusivity of one embodiment of the invention and light-weighted foreign material shell, capacitor/IGBT/ inverter shell combination are described in detail.Fig. 1 is the raising thermal diffusivity of one embodiment of the invention and light-weighted foreign material shell internally-arranged type capacitor pie graph, and Fig. 2 is the pie graph that the present invention improves thermal diffusivity and light-weighted foreign material shell internally-arranged type capacitor, IGBT, inverter shell combination.
As shown in Figure 1, the shell internally-arranged type capacitor possessing foreign material shell of one embodiment of the invention, comprises foreign material shell, and described foreign material shell is formed with the thermal conductivity metal position different from plastics or the coating layer that insulate at outer side.Foreign material shell 100 comprises: forming the inwall of shell and having the plastics wall portion 20 of insulating properties or form the inner side of shell and have the one selected in the insulation coating layer of insulating properties; All or part of outside described plastics wall portion 20 or insulation coating layer carries out face contact and the metal wall portion 10 that forms.
When foreign material shell 100 comprises plastics wall portion 20, shaping metal wall portion 10 is put into injection molding machine of plastic, to embed injection molding manner moulding plastics wall portion 20 position.When foreign material shell 100 is by metal wall portion 10 with when forming at the insulation coating layer that described metal wall portion 10 inner face side is coated with, be preferably 0.05 ~ 2mm at the thickness of the insulation coating layer of metal wall portion 10 inner face side coating.
As shown in Figure 1, possess in the shell internally-arranged type capacitor of foreign material shell in one embodiment of the invention, preferred foreign material shell 100 puts into injection molding machine of plastic shaping metal wall portion 10, to embed injection molding manner moulding plastics wall portion 20 position.The material of preferable alloy wall portion 10 is selected from the one in aluminium (Al), copper (Cu), zinc (Zn), magnesium (Mg), iron (iron), lead, brass, stainless steel, or comprise the alloy of a kind of metal be selected from aluminium (Al), copper (Cu), zinc (Zn), magnesium (Mg), iron (iron), lead, brass, stainless steel.
As shown in Figure 1, more preferably, the material of metal wall portion 10 is selected from the one in aluminium (Al), copper (Cu), zinc (Zn), or comprise the alloy of a kind of metal be selected from aluminium (Al), copper (Cu), zinc (Zn), magnesium, utilize the die casting mode of pressurizeing after the melt of fusing selected materials is injected casting mould to manufacture.The thickness of preferable alloy wall portion 10 is 0.2 ~ 10mm, and the plastic material forming described plastics wall portion 20 is at least one be selected from PPS, PBT, PP, PC, PET, ABS.When for below 0.2mm, in the fabrication process difficulty occurs, when for more than 10mm, so thick that to exceed needs, weight and fee of material increase.
Metal wall portion 10 can be formed in whole outsides of at least one side of plastics wall portion 20.That is, when for cuboid shell, the part of one side in five except peristome can form, also can form in whole one side.
As shown in Figure 1, preferred plastics wall portion 20 is made up of 1 plastics one wall 21 of foreign material shell 100 and the plastic sidewalls 23 of described plastics one wall 21 of encirclement, and the metal sidewall 13 that metal one wall 11 that metal wall portion 10 is contacted by the outside forming surface at described plastics one wall 21 contacts with the outside forming surface in described plastic sidewalls 23 is formed.As shown in Figure 1, preferred foreign material shell 100 is formed with cuboid, in 5 except peristome, comprises plastics one wall 21 and metal one wall 11 of formation 1, forms all the other plastic sidewalls of 4 23 and metal sidewall 13.
As shown in Figure 2, preferred raising thermal diffusivity of the present invention and light-weighted foreign material shell internally-arranged type capacitor, IGBT, inverter shell combination, comprise the shell internally-arranged type capacitor possessing foreign material shell, cooling fluid 300 that the inverter shell 200 installed additional for shell internally-arranged type capacitor, the IGBT of splicing ear being electrically connected in shell internally-arranged type capacitor, the inverter shell 200 that makes to have installed additional IGBT cool form.Metal wall portion 10 face of preferred shell 100 is installed in inverter outer casing bottom 210 contiguously, and inverter outer casing bottom 210 cools by means of cooling fluid 300.
Raising thermal diffusivity of the present invention and light-weighted foreign material shell internally-arranged type capacitor, IGBT, inverter shell combination, comprise foreign material shell internally-arranged type capacitor, for the inverter shell 200 that described shell internally-arranged type capacitor installs additional, be electrically connected in the IGBT of the splicing ear of described shell internally-arranged type capacitor, the cooling fluid 300 that the inverter shell 200 having installed described IGBT additional is cooled is formed, inverter outer casing bottom 210 cools by means of cooling fluid 300, IGBT is positioned at inverter outer casing bottom 210 top, foreign material shell internally-arranged type capacitor is fixed on IGBT top by means of fixing means.
Expansion explanation is carried out to formation of the present invention and action effect below.As shown in table 1, temperature buildup tests result shows, and plastic capacitor shell temperature rises about about 10.2 DEG C, but foreign material shell internally-arranged type capacitor temperature of the present invention rises 2.4 DEG C.Foreign material shell of the present invention, in order to make it possible to a large amount of production, makes shell outside capacitor with aluminium die casting, this die casting shell is put into injection molding machine, carries out embedding injection moulding.The outer exterior wall of capacitor case is aluminium material, can make internal heat dissipating maximum effect, vapour vehicle-used inverter casing cover directly can make electricity container aluminium die casting shell, with the injection moulding of plastics PPS material inside capacitor case, enclosure is insulated, prevents capacitor short-circuit.
Utilize the shell making capacitor embedding injection moulding with aluminium die casting, Capacitor banks is loaded on hybrid vehicle inverter enclosure assembling frame, and result of the test shows, and temperature rises very low, and characteristic is outstanding.And, when assembling frame is plastics, strength weak, but when for during with the shell of aluminium die casting, assemble frame portion and formed with aluminium, intensity is very strong, is suitable for the automobile electrical container of serious vibration.
Experimental condition: test voltage=640Vdc, pulsating current=136Arms, switching frequency 16KHz, cooling fluid 65 DEG C, capacitor environment temperature 95 DEG C, liquid circulation circulation 7l per minute, implements test under these conditions.
During original plastics PPS case capacitance actuator temperature buildup tests, element maximum temperature 105.4 DEG C, aluminium die casting of the present invention embeds injection molding capacitor temperature and rises 97.3 DEG C, derives the result of decline about-8.2 DEG C.(trystate 1 is the situation that capacitor case does not carry out face contact on inverter cooling way adjacent surface)
This exploration project is due to the very high relation of environment temperature, and when using capacitor element temperature more than 95 DEG C, capacitor life-span significantly reduces, and thus requirement can reduce the method for temperature further.Change concept and manufacture capacitor, the bottom surface making the aluminium die casting of capacitor embed injection casing directly can contact inverter radiator (liquid circulation part), result of the test shows, the conductive coefficient of capacitor is very outstanding, capacitor cooling is good, can reduce capacitor temperature and rise.(trystate 2 is situations of capacitor foreign material housing contacts inverter cooling way vicinal face)
Aluminium die casting embeds injection casing and is installed on hybrid vehicle inverter internal assembling frame top, when carrying out capacitor temperature buildup tests, element maximum temperature is 97.3 DEG C (trystates 1), the capacitor temperature that the bottom surface that aluminium die casting embeds injection molding capacitor shell directly contacts radiator (liquid circulation part) rises to 90.5 DEG C (trystates 2), derives the result of about-6.7 DEG C of declining.
Additionally, fully contact with automobile inverter radiator to make capacitor case bottom surface, heat radiation is made to realize maximizing, at capacitor bottom surface attachment heat conductive pad, result of the test shows, and has capacitor internal temperature and to decline further the effect of about-1.5 DEG C, if but consider cost increase and operation etc., even if non-cohesive heat conductive pad, also drop to the temperature that capacitor life-span does not reduce, thus judge that think can non-cohesive heat conductive pad.
Additionally, fully contact with automobile inverter radiator to make capacitor case bottom surface, heat radiation is made to realize maximizing, smear thermally conductive grease in capacitor bottom surface, result of the test shows, and has capacitor internal temperature and to decline further the effect of about-1.8 DEG C, if but consider cost increase and operation etc., even if do not smear thermally conductive grease, also drop to the temperature that capacitor life-span does not reduce, thus judge to think and can not smear thermally conductive grease.
Experimental condition: test voltage=640Vdc, pulsating current=136Arms, switching frequency 16KHz, cooling fluid 65 DEG C, capacitor environment temperature 95 DEG C, cooling fluid is circulation 7l per minute in capacitor case bottom surface, implements test under these conditions.
[table 1]
The preferred embodiment that the present invention just mentions above is illustrated, but scope of the present invention is not defined in this embodiment, and scope of the present invention is determined according to claims, comprises and belonging to and the multiple amendment of equivalency range of the present invention and distortion.
It is pointed out that the reference numeral recorded in claims is merely for the understanding of auxiliary invention, does not have an impact to the explanation of interest field, must not reference numeral historically and narrow explanation interest field.
Claims (10)
1. improve thermal diffusivity and a light-weighted foreign material shell internally-arranged type capacitor, it is characterized in that,
Comprise foreign material shell, described foreign material shell is formed with the thermal conductivity metal position different from plastics or the coating layer that insulate at outer side.
2. improve thermal diffusivity and a light-weighted foreign material shell internally-arranged type capacitor, it is characterized in that, comprising:
Capacitor element (1), it is batched by dielectric film and is formed, and is formed with conductive thermal spraying face in both sides;
Busbar (3), it is electrically connected in the both sides in the thermal spraying face of described capacitor element (1);
Foreign material shell (100), the combination of its built-in described capacitor element and busbar;
Described foreign material shell (100) is made up of with the metal material of thermal conductivity higher than described plastic section or the coating layer material that insulate plastic section or insulation one of coating layer, forms the whole of described foreign material shell (100) wall or is metal section at least partially.
3. raising thermal diffusivity according to claim 2 and light-weighted foreign material shell internally-arranged type capacitor, is characterized in that,
Described foreign material shell (100) comprising: forming the inwall of shell and having the plastics wall portion (20) of insulating properties or form the inner side of shell and have the one selected in the insulation coating layer of insulating properties;
All or part of outside described plastics wall portion (20) or insulation coating layer carries out face contact and the metal wall portion (10) that forms.
4. raising thermal diffusivity according to claim 3 and light-weighted foreign material shell internally-arranged type capacitor, is characterized in that,
When described foreign material shell (100) comprises plastics wall portion (20), shaping metal wall portion (10) is put into injection molding machine of plastic, to embed injection molding manner moulding plastics wall portion (20) position;
When described foreign material shell (100) is by metal wall portion (10) with when forming at the insulation coating layer that described metal wall portion (10) inner face side is coated with, be 0.05 ~ 2mm at the thickness of the insulation coating layer of metal wall portion (10) inner face side coating.
5. raising thermal diffusivity according to claim 3 and light-weighted foreign material shell internally-arranged type capacitor, is characterized in that,
The material of described metal wall portion (10) is selected from the one in aluminium (Al), copper (Cu), zinc (Zn), magnesium (Mg), iron (iron), lead, brass, stainless steel, or comprise the alloy of a kind of metal be selected from aluminium (Al), copper (Cu), zinc (Zn), magnesium (Mg), iron (iron), lead, brass, stainless steel.
6. raising thermal diffusivity according to claim 4 and light-weighted foreign material shell internally-arranged type capacitor, is characterized in that,
The material of described metal wall portion (10) is selected from the one in aluminium (Al), copper (Cu), zinc (Zn), or comprise the alloy of a kind of metal be selected from aluminium (Al), copper (Cu), zinc (Zn), magnesium;
The die casting mode of pressurizeing after the melt of fusing selected materials is injected casting mould is utilized to manufacture.
7. raising thermal diffusivity according to claim 6 and light-weighted foreign material shell internally-arranged type capacitor, is characterized in that,
The thickness of described metal wall portion (10) is 0.2 ~ 10mm;
The plastic material forming described plastics wall portion (20) is at least one be selected from PPS, PBT, PP, PC, PET, ABS.
8. raising thermal diffusivity according to claim 6 and light-weighted foreign material shell internally-arranged type capacitor, is characterized in that,
Described metal wall portion (10) is formed in whole outsides of at least one side of plastics wall portion (20).
9. raising thermal diffusivity according to claim 6 and light-weighted foreign material shell internally-arranged type capacitor, is characterized in that,
Described plastics wall portion (20) is made up of 1 plastics one wall (21) of foreign material shell (100) and the plastic sidewalls (23) of described plastics one wall (21) of encirclement;
The metal sidewall (13) that metal one wall (11) that described metal wall portion (10) is contacted by the outside forming surface described plastics one wall (21) contacts with the outside forming surface in described plastic sidewalls (23) is formed.
10. raising thermal diffusivity according to claim 9 and light-weighted foreign material shell internally-arranged type capacitor, is characterized in that,
Described foreign material shell (100) is formed with cuboid, in 5 except peristome, comprise plastics one wall (21) and metal one wall (11) of formation 1, form all the other plastic sidewalls of 4 (23) and metal sidewall (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510612665.2A CN105140030A (en) | 2015-09-23 | 2015-09-23 | Light abnormal material housing built-in type capacitor with improved heat dissipation ability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510612665.2A CN105140030A (en) | 2015-09-23 | 2015-09-23 | Light abnormal material housing built-in type capacitor with improved heat dissipation ability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105140030A true CN105140030A (en) | 2015-12-09 |
Family
ID=54725344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510612665.2A Pending CN105140030A (en) | 2015-09-23 | 2015-09-23 | Light abnormal material housing built-in type capacitor with improved heat dissipation ability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105140030A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201402821Y (en) * | 2009-03-21 | 2010-02-10 | 惠州亿纬锂能股份有限公司 | 9V square lithium battery package shell |
| CN101841012A (en) * | 2010-02-24 | 2010-09-22 | 北汽福田汽车股份有限公司 | Preparation method of car storage battery box body and box body prepared by using same |
| CN102184782A (en) * | 2011-01-29 | 2011-09-14 | 舟山市新龙电子设备有限公司 | Aluminum casing for electrolytic capacitor |
| CN203895271U (en) * | 2014-02-04 | 2014-10-22 | 纽茵泰克株式会社 | Built-in housing capacitor |
| CN203895270U (en) * | 2013-12-31 | 2014-10-22 | 纽茵泰克株式会社 | Built-in housing low-inductive capacitor used for vehicle inverter |
| CN204178931U (en) * | 2014-11-13 | 2015-02-25 | 纽茵泰克式会社 | Possesses the capacitor of composition metal busbar |
-
2015
- 2015-09-23 CN CN201510612665.2A patent/CN105140030A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201402821Y (en) * | 2009-03-21 | 2010-02-10 | 惠州亿纬锂能股份有限公司 | 9V square lithium battery package shell |
| CN101841012A (en) * | 2010-02-24 | 2010-09-22 | 北汽福田汽车股份有限公司 | Preparation method of car storage battery box body and box body prepared by using same |
| CN102184782A (en) * | 2011-01-29 | 2011-09-14 | 舟山市新龙电子设备有限公司 | Aluminum casing for electrolytic capacitor |
| CN203895270U (en) * | 2013-12-31 | 2014-10-22 | 纽茵泰克株式会社 | Built-in housing low-inductive capacitor used for vehicle inverter |
| CN203895271U (en) * | 2014-02-04 | 2014-10-22 | 纽茵泰克株式会社 | Built-in housing capacitor |
| CN204178931U (en) * | 2014-11-13 | 2015-02-25 | 纽茵泰克式会社 | Possesses the capacitor of composition metal busbar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101632142B (en) | Case-molded capacitor and method for using the same | |
| EP2876983B1 (en) | Electronic device and method for assembling the same | |
| US9192083B2 (en) | Electronic component box for vehicle | |
| KR101375956B1 (en) | Electronic component box for vehicle | |
| KR102326063B1 (en) | Film capacitor module of inverter for vehicle | |
| CN106450073B (en) | High voltage battery | |
| KR20180069730A (en) | Power relay assembly | |
| US9705162B2 (en) | Temperature control plate for a lithium ion battery | |
| KR20170034956A (en) | Dual Material Case Capacitor | |
| EP2688185B1 (en) | Rotating electrical machine | |
| US10658110B2 (en) | Capacitive block including a heat sink | |
| JP2006196678A (en) | Capacitor device | |
| KR102119594B1 (en) | Power relay assembly | |
| KR101079129B1 (en) | capacitor assembly | |
| JP2012069840A (en) | Case mold type capacitor | |
| JP2012199350A (en) | Case mold type capacitor | |
| KR20210019855A (en) | A Housing of electrical component of battery module | |
| CN115053308A (en) | Capacitor with insert injection molding type metal plastic double-material shell | |
| JP6305731B2 (en) | Case mold type capacitor and manufacturing method thereof | |
| CN204577247U (en) | Be applied to the film capacitor radiator structure of vehicle inverter | |
| US20230163693A1 (en) | Power conversion device | |
| CN102290242B (en) | Heat dispersion structure and method of thin film capacitor | |
| CN114430643A (en) | Power electronics module with improved space utilization and thermal management characteristics | |
| WO2016076452A1 (en) | Different material case embedded capacitor, and capacitor igbt inverter housing assembly | |
| CN105140030A (en) | Light abnormal material housing built-in type capacitor with improved heat dissipation ability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |