CN105261481B - A kind of light-duty no shell vehicle power electronic capacitor of low inductance - Google Patents
A kind of light-duty no shell vehicle power electronic capacitor of low inductance Download PDFInfo
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- CN105261481B CN105261481B CN201510740202.4A CN201510740202A CN105261481B CN 105261481 B CN105261481 B CN 105261481B CN 201510740202 A CN201510740202 A CN 201510740202A CN 105261481 B CN105261481 B CN 105261481B
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Abstract
A kind of light-duty no shell vehicle power electronic capacitor of low inductance, it include: the 1st multiterminal electrode component (1), 2nd multiterminal electrode component (4), soft quality polyester material encapsulating (2) and the capacitor core (3) being fixed in soft quality polyester material encapsulating (2)；It is characterized by: the 1st multiterminal electrode component (1) and the 2nd multiterminal electrode component (4) are respectively provided with filler circulation hole (17)；It further include the 1st connection gilding layer portion (8) and the 2nd connection gilding layer portion (11), 1st electrode leads to client (6) and the 2nd electrode leads to client (9), the 1st intermediate conductive strips (7) and the 2nd intermediate conductive strips (10)；2nd intermediate conductive strips (10) are placed on the outside of capacitor core (3), and are equipped with insulating layer (5) between capacitor core (3).The design reduces capacitor self-induction, and is conducive to the heat dissipation of capacitor, improves the reliability of capacitor and reduces cost.
Description
Technical field
The present invention relates to a kind of vehicle power electronic capacitor more particularly to the vehicle electric power of the light-duty no shell of low inductance
The structure of electronic capacitor, in International Patent Classification (IPC), classification can belong to H01G4/224 and H01G4/228.
Background technique
Electric car currently on the market is generally used according to GB/T 25121-2010 " " rail transit rolling stock equipment
Power electronic capacitor " vehicle power electronic capacitor.Its capacitor core uses noninductive winding, the self-inductance of each core
It is minimum, therefore the self-inductance of capacitor depends primarily on the self-induction of electrode.The conventionally used copper braid over braid of the electrode of the capacitor
Or copper strips is drawn, and since capacitor only has two poles, therefore only two copper strips (or copper establishment band) are drawn as electrode.Work as ripple
When the biggish electric current of ingredient passes through two electrode, which can generate biggish parasitic inductance pressure drop, lead to capacitor itself
Induction reactance is relatively large, surveys inductance L and is typically larger than 30nH, capacitor is run under high frequency operating condition at this time, can make capacitor temperature
Liter is too fast, excessively high, and it is too short to directly result in its service life.
Meanwhile the vehicle power electronic capacitor generally used in the market, hard resin is generally added using plastic shell
The mode of encapsulating encapsulates capacitor core.Using such packaged type, since the density of hard resin is larger and has outside plastic cement
The volume and weight of shell, capacitor itself can become larger, this is unfavorable for the electric automobile whole for the purpose of manned loading
's.Moreover, under conditions of high temperature, high vibration, which easily occurs plastic shell and hard resin material encapsulated layer, hard
The case where cracking and separate between property resin material encapsulated layer and capacitor body.In addition, the thermal conductivity of plastic shell is also poor,
The shell can make capacitor self-radiating slow, too fast, excessively high so as to cause capacitor internal temperature rise, and further influencing capacitor makes
Use the service life.
The typical structure of the capacitor is as shown in Figure 3:
--- in 18 periphery winding capacitance core 3 of plug；
--- the 1st single-ended electrode component 12 and the is respectively welded in the pad 16 in the top of capacitor core 3, bottom gilding layer
The 13, the 1st single-ended electrode component 12 of 2 single-ended electrode component stretches out directly up, and the 2nd multiterminal electrode component 13 bypasses capacitor core 3
Outer circumference surface stretches out upwards, is equipped with insulating layer 5 therebetween；
--- said modules pour hard resin 15 after being packed into plastic shell 14.
Summary of the invention
The technical problem to be solved by the present invention is to propose a kind of light-duty no shell vehicle electric power electron capacitance of low inductance
Device can improve background technique described problem.
The technical solution that the present invention solves the technical problem is: a kind of low light-duty no shell vehicle power electronics electricity of inductance
Container, comprising: the 1st multiterminal electrode component (1), the 2nd multiterminal electrode component (4), soft quality polyester material are encapsulated (2) and be fixed on soft
Matter polyester material encapsulates the capacitor core (3) in (2)；It is characterized by:
--- the 1st multiterminal electrode component (1) and the 2nd multiterminal electrode component (4) are respectively provided with filler circulation hole (17)；
--- further include the 1st connection gilding layer portion (8) and the 2nd connect gilding layer portion (11), the 1st electrode leads to client (6) and
2nd electrode leads to client (9), the 1st intermediate conductive strips (7) and the 2nd intermediate conductive strips (10)；
--- the 2nd intermediate conductive strips (10) are placed on the outside of capacitor core (3), and insulation is equipped between capacitor core (3)
Layer (5).
Its further design is: the 1st electrode leads to client (6) and the 2nd electrode leads to client (9) are more exits.This draws
Outlet is preferably 4 or more exits.
The design replaces single-ended electrode component to considerably increase compared with single-ended electrode component using multiterminal electrode component
Ripple current flows through the cross-sectional area of electrode, and parallel branch reduces the self-induction drawn by electrode and introduced, to reduce
Capacitor self-induction.Test shows to have used the capacitor of 4 end extraction electrodes that self-inductance has than the capacitor of single-ended extraction electrode
Effect reduces about 50%.In addition, the parallel branch structure of multiterminal electrode component makes the electric current of capacitor flow through the position of electrode and divide
Cloth more scatters, and keeps the electrode heat dissipation area of capacitor bigger (and Fig. 3 structure compares), is more advantageous to the heat dissipation of capacitor, because
And the case where avoiding local pyrexia.
In addition, the design is replaced using the soft quality polyester material encapsulating mode of apheredermes good toughness by plastic shell and hard
Mode is encapsulated in the combination of matter resin, fundamentally solves the case where separating such as Fig. 3 hard resin (15) with plastic shell (14),
And soft quality polyester material itself has better anti-vibrating and impact ability, also reduces and separates between encapsulated layer and capacitor body
A possibility that.Meanwhile using apheredermes soft quality polyester material and encapsulating (2) mode, since soft quality polyester material envelope density is small
In hard resin (15), and plastic shell (14) are eliminated, this just alleviates capacitor weight itself and reduces capacitor body
Product, effectively reduces production cost.Remove the poor plastic shell of thermal conductivity, be also beneficial to the heat dissipation of capacitor itself, improves
The reliability of capacitor.
Technical solutions and effects of the present invention will be further described in conjunction with attached drawing in a specific embodiment.
Detailed description of the invention
Fig. 1 is the positive section view and overlooking structure diagram of capacitor of the embodiment of the present invention；
Fig. 2 is the positive section view and overlooking structure diagram of electrode for capacitors exit corresponding position of the embodiment of the present invention；
Fig. 3 is the positive section view and overlooking structure diagram that tradition has shell vehicle power electronic capacitor；
Fig. 4 is the positive section view and overlooking structure diagram of the 1st multiterminal electrode component of capacitor of the embodiment of the present invention；
Fig. 5 is the schematic perspective view of the 2nd multiterminal electrode component of capacitor of the embodiment of the present invention；
Fig. 6 is the positive section view and overlooking structure diagram of the 2nd multiterminal electrode component of capacitor of the embodiment of the present invention.
Icon explanation:
1. the 1st multiterminal electrode component；2. soft quality polyester material is encapsulated；3. capacitor core；4. the 2nd multiterminal electrode component；5.
Insulating layer；6. the 1st electrode leads to client；7. the 1st intermediate conductive strips；8. the 1st connection gilding layer portion；9. the 2nd electrode leads to client；10.
2nd intermediate conductive strips；11. the 2nd connection gilding layer portion；12. the 1st single-ended electrode component；13. the 2nd single-ended electrode component；14. modeling
Expect shell；15. hard resin；16. pad；The hole 17. filler circulates.
Specific embodiment
The light-duty no shell vehicle power electronic capacitor of the low inductance of the embodiment of the present invention is as shown in Figure 1 and Figure 2, comprising:
--- the 1st multiterminal electrode component 1 as shown in Figure 4, the 2nd multiterminal electrode component 4 as shown in Figure 5 and Figure 6, soft quality polyester
Material encapsulating 2 and the capacitor core 3 being fixed in soft quality polyester material encapsulating 2；1st multiterminal electrode component 1 and the 2nd multiterminal electrode
Component 4 is respectively provided with filler circulation hole 17；
--- the 1st multiterminal electrode component 1 and the 2nd multiterminal electrode component 4 respectively include the 1st connection gilding layer portion 8 and the 2nd and connect
Connect gilding layer portion 11, the 1st electrode leads to client 6 and the 2nd electrode leads to client 9, the 1st intermediate conductive strips 10 of intermediate conductive strips 7 and the 2nd；
--- the 2nd intermediate conductive strips 10 are placed in 3 outside of capacitor core, and insulating layer 5 is equipped between capacitor core 3.
When manufacture, by the 1st multiterminal electrode component 1 and the 2nd multiterminal electrode component 4 respectively by symmetrical 4 orientation handles described in Fig. 1
1st connection gilding layer portion 8 and the 2nd connects gilding layer portion 11 and is welded to 3 two transverse plane of capacitor core, in the 2nd multiterminal electrode component 4
It is put into insulating layer 5 between capacitor core 3, the above stated assembly structure welded and assembled is placed among stainless steel mould
(mold cavity surfaces have release agent) simultaneously fixes, and is finally filled through the logical injection of the hole 17 soft quality polyester of logistics under vacuum conditions and fills out
It fills, taking out after soft quality curable polyester and after becoming soft quality polyester material encapsulating 2 is manufactured product capacitor.
Capacitor of the embodiment of the present invention is improved on the basis of vehicle power electronic capacitor traditional structure, right
The content that dependency structure is not stated inherits vehicle power electronic capacitor conventional junction as shown in Figure 3 described in background technique
Structure.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention.It is all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., is all included in the scope of protection of the present invention within mind and principle.
Claims (1)
1. a kind of light-duty no shell vehicle power electronic capacitor of low inductance, comprising: the 1st multiterminal electrode component (1), the 2nd multiterminal
Electrode assembly (4), soft quality polyester material encapsulating (2) and the capacitor core (3) being fixed in soft quality polyester material encapsulating (2)；Its
Be characterized in that: the 1st multiterminal electrode component (1) and the 2nd multiterminal electrode component (4) are respectively provided with filler circulation hole (17), also wrap
The 1st connection gilding layer portion (8) and the 2nd connection gilding layer portion (11), the 1st electrode leads to client (6) and the 2nd electrode leads to client (9) are included,
1st intermediate conductive strips (7) and the 2nd intermediate conductive strips (10)；2nd intermediate conductive strips (10) are placed on the outside of capacitor core (3), and with
Insulating layer (5) are equipped between capacitor core (3)；1st electrode leads to client (6) and the 2nd electrode leads to client (9) are draw more
End；More exits are 4 exits；Also, when manufacturing, each 1st electrode leads to client (6) is in adjacent 2nd electricity
Middle between pole exit (9) is put into insulating layer (5) between the 2nd multiterminal electrode component (4) and capacitor core (3), will
The above stated assembly structure welded and assembled, which is placed in surface of internal cavity, to be had among the stainless steel mould of release agent and fixes, most
It is filled through logistics under vacuum conditions afterwards and leads to hole (17) injection soft quality polyester filling, to soft quality curable polyester and become soft quality polyester
It is manufactured capacitor that material, which is encapsulated (2) and taken out afterwards,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510740202.4A CN105261481B (en) | 2015-11-02 | 2015-11-02 | A kind of light-duty no shell vehicle power electronic capacitor of low inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510740202.4A CN105261481B (en) | 2015-11-02 | 2015-11-02 | A kind of light-duty no shell vehicle power electronic capacitor of low inductance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105261481A CN105261481A (en) | 2016-01-20 |
| CN105261481B true CN105261481B (en) | 2019-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510740202.4A Active CN105261481B (en) | 2015-11-02 | 2015-11-02 | A kind of light-duty no shell vehicle power electronic capacitor of low inductance |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105679536A (en) * | 2016-03-22 | 2016-06-15 | 安徽铜峰电子股份有限公司 | Low-inductance power electronic capacitor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1499547A (en) * | 2002-11-11 | 2004-05-26 | 富士通媒体部品株式会社 | Aluminum electrolytic condenser |
| CN101595542A (en) * | 2006-12-22 | 2009-12-02 | 松下电器产业株式会社 | Electronic devices and components and manufacture method thereof |
| CN102576609A (en) * | 2009-09-30 | 2012-07-11 | 三洋电机株式会社 | Electrolytic capacitor |
| CN202855552U (en) * | 2012-07-16 | 2013-04-03 | 佛山市意壳电容器有限公司 | Metallized film capacitor with multiple lead welding terminals |
| CN205319035U (en) * | 2015-11-02 | 2016-06-15 | 广州麟聚电子科技有限公司 | Low light -duty no shell of inductance power electronic capacitor for vehicle |
-
2015
- 2015-11-02 CN CN201510740202.4A patent/CN105261481B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1499547A (en) * | 2002-11-11 | 2004-05-26 | 富士通媒体部品株式会社 | Aluminum electrolytic condenser |
| CN101595542A (en) * | 2006-12-22 | 2009-12-02 | 松下电器产业株式会社 | Electronic devices and components and manufacture method thereof |
| CN102576609A (en) * | 2009-09-30 | 2012-07-11 | 三洋电机株式会社 | Electrolytic capacitor |
| CN202855552U (en) * | 2012-07-16 | 2013-04-03 | 佛山市意壳电容器有限公司 | Metallized film capacitor with multiple lead welding terminals |
| CN205319035U (en) * | 2015-11-02 | 2016-06-15 | 广州麟聚电子科技有限公司 | Low light -duty no shell of inductance power electronic capacitor for vehicle |
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| Publication number | Publication date |
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| CN105261481A (en) | 2016-01-20 |
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Addressee: GUANGZHOU LINJU ELECTRONICS TECHNOLOGY CO., LTD. Document name: Notification of Publication and of Entering the Substantive Examination Stage of the Application for Invention |
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Effective date of registration: 20190102 Address after: 511453 6, 30 Tai Chi Road, Tai Shi Industrial Zone, Tung Chung Town, Nansha District, Guangzhou, Guangdong. Applicant after: Yan Jianhua Address before: 511400 Haoxin Industrial Park C208, 46 Qixin Road, Dongyong Town, Nansha District, Guangzhou City, Guangdong Province Applicant before: GUANGZHOU LINJU ELECTRONICS TECHNOLOGY CO., LTD. |
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Effective date of registration: 20190408 Address after: 511453 6, 30 Tai Chi Road, Tai Shi Industrial Zone, Tung Chung Town, Nansha District, Guangzhou, Guangdong. Applicant after: Guangzhou Xianhe Technology Engineering Co., Ltd. Address before: 511453 6, 30 Tai Chi Road, Tai Shi Industrial Zone, Tung Chung Town, Nansha District, Guangzhou, Guangdong. Applicant before: Yan Jianhua |
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