CN106653368A - Water-cooling type thin film capacitor - Google Patents
Water-cooling type thin film capacitor Download PDFInfo
- Publication number
- CN106653368A CN106653368A CN201710011797.9A CN201710011797A CN106653368A CN 106653368 A CN106653368 A CN 106653368A CN 201710011797 A CN201710011797 A CN 201710011797A CN 106653368 A CN106653368 A CN 106653368A
- Authority
- CN
- China
- Prior art keywords
- water
- thin film
- film capacitor
- cooling
- housing
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 50
- 239000003990 capacitor Substances 0.000 title claims abstract description 49
- 239000010409 thin film Substances 0.000 title claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 11
- 238000000465 moulding Methods 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004146 energy storage Methods 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract 2
- 239000010408 film Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- -1 IGBT Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/33—Thin- or thick-film capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/224—Housing; Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
- H01G4/236—Terminals leading through the housing, i.e. lead-through
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Inverter Devices (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a water-cooling type thin film capacitor. The water-cooling type thin film capacitor is characterized by comprising a shell, wherein a cooling cavity and a capacitor core are arranged in the shell; the capacitor core is connected with a direct current output end through a bus arranged in the shell; the direct current output end is exposed out of the shell on the back side of an opening place of the cooling cavity; liquid cooling interfaces connected with the cooling cavity are formed in the left and right sides of the opening place of the cooling cavity respectively; and a direct current input end is arranged on the front side of the shell. According to the water-cooling type thin film capacitor, the water-cooling structure is additionally arranged on the capacitor shell and the bus used for connecting the capacitor and an IGBT is built in the capacitor shell, so that a water cooling plate, a machine shell and the bus are integrated, the structure of a driver is simplified and the overall performance of the unit is improved; the water-cooling type thin film capacitor has an energy storage function as the capacitor as well as a heat dissipation function for an insulated gate bipolar transistor; and in a driving circuit, the water-cooling type thin film capacitor not only can supply current and voltage support for a high-frequency switch of the insulated gate bipolar transistor but also can perform water-cooling heat dissipation on the insulated gate bipolar transistor through a self water path.
Description
Technical field
The present invention relates to a kind of thin film capacitor, and in particular to a kind of thin film capacitor with water cooling function, belong to electricity
Container technical field.
Background technology
New-energy automobile (hybrid power, hydrogen power, pure electronic etc.), its core be all using electric energy as drive energy, and
Electric energy is required for motor to the conversion of mechanical energy, and drive module is also wanted certainly.The core devices IGBT of drive module is in inversion
Cheng Zhong, needs thin-film capacitor and cooled plate to support that (thin-film capacitor supports the mutation of voltage x current, water-cooling system to be used for for its running
The cooling of IGBT self heats), otherwise inverter circuit cannot run.
It is well known that thin-film capacitor fuse is using organic film as dielectric, in organic film surface evaporation metal
Used as electrode, in pairs winding constitutes electric capacity core body to layer.Metal film itself certainly exists resistance as conductor, and film
The migration (forming electric current) of electronics is necessarily accompanied with during capacitor charge and discharge, understands that membrane capacitance is in discharge and recharge according to electric work law
When can produce heat (energy loss).Although although the heat that produces of membrane capacitance less, gathers with heat, temperature also can be with
Rising, until it reaches thermal balance.For the overall performance (life-span, safety etc.) of electric capacity, with its performance of the rising of temperature
Can decrease.So, it is effective way of the overall performance for lifting thin-film capacitor by the heat derives produced by thin-film capacitor
Footpath.
To realize above-mentioned requirements, instantly general vehicle driver, typically adopts cooled plate for substrate, IGBT, thin-film capacitor
Device is fixed thereon.The embedded water channel of the radiating fin of water-cooling type IGBT, and constitute complete thermal dissipating path with reference to sealing ring, securing member.
External power supply introduces electric capacity by bus, and electric capacity lead-out terminal is connected with IGBT both positive and negative polarities, by IGBT inversions, exchange output
End is connected with exchange naked copper plate, through sensor, constitutes the basic forceful electric power framework of inverter.
To sum up, can be summarized as the characteristics of the structure of existing general vehicle driver：Device integration is low, and each device function is bright
Really；Device tie point is more, simple installation；Integrated level is low, and wiring is arbitrarily big；Loop area increases between capacitor and IGBT, posts
Raw inductance value is big.
It is assembled using simple function device more than existing general vehicle driver.For ease of installing, each device is inevitable pre-
Installing space is stayed, is so difficult to accomplish the tight rush of layout.The driver of single function device connection, certainly will will sacrifice unit
Tight rush property, causes the driver volume of Same Efficieney bigger than normal.And the volume of driver can affect the layout of Full Vehicle System, car is caused
Using space reduction.
Additionally, assembling driver from simple function device in a large number, the loop area between each device of DC side can be caused
Increase, and increased loop area can cause the stray inductance of DC circuit part to increase.For driver, parasitic electricity
Sense not only results in the overall performance of dynamic device and declines, or even can disturb the control circuit of driver, causes driver function occur
Failure.
The strong power part structure of existing New energy automobile motor driver in cooled plate 1 as shown in figure 1, be equipped with
The side of IGBT3, IGBT3 is provided with thin film capacitor 2, and opposite side is provided with sensor 6, input connection bus 4 be arranged on IGBT3,
On thin film capacitor 2, output connection copper coin 5 passes through sensor 6；Input connection bus 4 both positive and negative polarity wherein one end with it is thin
Three groups of terminals connection of membrane capacitance 2, the other end is connected with input plug connector fixing end；Input connection bus 4 one end with
The ac output end connection of IGBT3, the other end is connected with exchange output connector terminal.
The content of the invention
Problem to be solved by this invention is the larger problem of existing vehicle-mounted driver volume.
In order to solve the above problems, the invention provides a kind of water-cooled thin film capacitor, it is characterised in that including shell
Body, is provided with cooling cavities and capacitance core in housing, capacitance core is connected by the bus in housing with DC output end, direct current
Output end from cooling cavities opening on rear side of housing expose；Being respectively arranged on the left side and the right side at cooling cavities opening and cooling chamber
The liquid cold joint mouth of body connection；Direct-flow input end is provided with front side of housing.
Preferably, the periphery on the housing at cooling cavities opening is provided with the IGBT fixing threaded holes for installing IGBT.
Preferably, cooling chamber sealing caulking groove is provided with the opening of the cooling cavities.
Preferably, the DC output end includes the lead-out terminal moulding being fixed on housing, is inserted in output end note
Lead-out terminal pole plate in plastic, lead-out terminal pole plate is connected with bus.
It is highly preferred that the lead-out terminal pole plate is fixed in lead-out terminal moulding by lead-out terminal embedded nut.
Preferably, liquid cold joint mouth sealing ring is provided between the liquid cold joint mouth and housing.
Present invention also offers a kind of vehicle-mounted driver forceful electric power device, it is characterised in that including above-mentioned water-cooled thin-film electro
Container, the housing of the thin film capacitor is provided with IGBT, and IGBT is fixed on top at the opening of cooling cavities, and its front side is provided with
Sensor；The DC input terminal of IGBT is connected with the DC output end of thin film capacitor, and AC output terminal passes through sensor
Expose from front side of sensor.
Preferably, IGBT sealing rings are provided between the IGBT and thin film capacitor.
The present invention increased water-cooling structure on electric capacity housing, and the bus for connecting electric capacity and IGBT is built in capacitance core
Body, i.e., carried out integrated to cooled plate, casing, bus, had both simplified the structure of driver, and the globality of unit is improve again
Energy.The DC output end of electric capacity adopts low induction structure, and direct current connects Jing after IGBT is changed and to be formed exchange with outer defeated companion is exchanged
Connect.AC output terminal is connected through sensor with fast plug is exported, and sends motor outside.Electric capacity housing adds in IGBT installation sites
Work has radiator structure, the i.e. liquid cooling system of IGBT radiatings.After IGBT is assemblied in electric capacity housing, can by extraneous liquid cooling system
Realize the radiating to IGBT, the liquid cooling system of Component units.
Driver element is built using water-cooled thin film capacitor, with the driver phase assembled using conventional capacitive, cooled plate
Than, using the inversion unit of water-cooled thin film capacitor, there is larger reduction in volume, device integration substantially increases.
The present invention not only has the energy-storage function of electric capacity, also has both the radiating work(of insulated gate bipolar transistor (IGBT)
Can, in the driving circuit, it not only can provide electric current, voltage to insulated gate bipolar transistor (IGBT) HF switch
Support, it is also possible to which water-cooling is carried out to insulated gate bipolar transistor (IGBT) by itself water route (being embedded in casing).
Description of the drawings
Fig. 1 is the structural representation of existing vehicle-mounted driver forceful electric power device；
The structural representation of the vehicle-mounted driver forceful electric power device that Fig. 2 is provided for the present invention；
The explosive view of the vehicle-mounted driver forceful electric power device that Fig. 3 is provided for the present invention；
The structural representation of the water-cooled thin film capacitor that Fig. 4 is provided for the present invention；
Fig. 5 is the datagram of inductance value after common terminal connection；
Fig. 6 is the datagram of inductance value after low inductance terminal connection.
Specific embodiment
To become apparent the present invention, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
Embodiment
As Figure 2-3, a kind of vehicle-mounted driver forceful electric power device for providing for the present embodiment, it includes thin film capacitor 2,
Thin film capacitor 2 is as shown in figure 4, including housing 2-1, be provided with cooling cavities 2-2 and capacitance core, capacitance core passes through in housing 2-1
Bus in housing 2-1 is connected with DC output end 2-4, DC output end 2-4 from cooling cavities 2-2 opening on rear side of
Housing 2-1 exposes；The liquid cold joint mouth 2- that being respectively arranged on the left side and the right side at cooling cavities 2-2 opening connects with cooling cavities 2-2
7, it is provided with liquid cold joint mouth sealing ring 8 between liquid cold joint mouth 2-7 and housing 2-1.Direct-flow input end 2-3 is provided with front side of housing 2-1.
DC output end 2-4 includes the lead-out terminal moulding 2-4-1 being fixed on housing 2-1, is inserted in output end moulding 2-4-1
Interior lead-out terminal pole plate 2-4-2, lead-out terminal pole plate 2-4-2 are connected with bus, and lead-out terminal pole plate 2-4-2 passes through output end
Sub- embedded nut 2-4-3 is fixed in lead-out terminal moulding 2-4-1.Periphery on housing 2-1 at cooling cavities 2-2 opening sets
There are the IGBT fixing threaded hole 2-5 for installing IGBT, IGBT3 is fixed on housing 2-1 using nut, cooling cavities 2-2
Cooling chamber sealing caulking groove 2-6 is provided with opening, IGBT sealing rings 7 are installed in cooling chamber sealing caulking groove 2-6.The direct current of IGBT3 is defeated
Enter terminal to be connected with the DC output end 2-4 of thin film capacitor 2, i.e., using bolt, screw bolt passes lead-out terminal embeds spiral shell
The DC input terminal of female 2-4-3, IGBT3, lead-out terminal pole plate 2-4-2 are connected；Sensor 6 is provided with front side of IGBT3,
The AC output terminal 3-1 of IGBT3 exposes through sensor 6 from the front side of sensor 6.The AC output terminal 3-1 of IGBT3 with
The direct-flow input end 2-3 of thin film capacitor 2 is on same vertical plane.
(terminal is in injection by being connected with the direct-flow input end 2-3 being embedded on front side of housing 2-1 for external direct current power supply
Embedding copper piece structure, conductor self-clinching standoff), this imports thin film capacitor 2 to electric current Jing, completes the charging of electric capacity.In housing 2-1, volume
Around capacitance core after with bus, DC output end 2-4 welding, integrative-structure is constituted.The structure is to reserve perforate by casing,
Coordinated with housing 2-1, and be potted in housing 2-1.Now, three groups of DC output end 2-4 are through advance on housing 2-1
Perforate, the overhanging position flushed with the DC input terminal bottom surface of IGBT3 --- the DC output end 2-4 of thin film capacitor 2 is adopted
Use low induction structure.Jing after IGBT3 is changed and to be formed exchange, outer defeated companion is connected direct current with exchange.The ac output end of IGBT3
Sub- 3-1 is connected through sensor 6 with fast plug is exported, and sends motor outside.Installations of the housing 2-1 of thin film capacitor 2 in IGBT3
Position is machined with radiator structure, i.e. liquid cooling system.After IGBT3 is assemblied in thin film capacitor 2, can by extraneous liquid cooling system
Realize the radiating to IGBT3, the liquid cooling system of Component units.
The conventional cell structure that the vehicle-mounted driver forceful electric power device that the present embodiment is provided compares using the splicing of single device
More be becoming tight rush, and the size of conventional elements is 219.2 × 250 × 92.5mm；And the size of the present embodiment be 240 × 165.7 ×
61mm。
Additionally, because electric capacity adopts low inductance terminal structure, reduce loop area in being connected with IGBT, therefore the electricity of unit
Sensibility reciprocal also reduces therewith, concrete data see Fig. 5,6, it is seen then that the employing of low inductance terminal structure, inversion system function is had substantially
Improve.
Claims (8)
1. cooling cavities is provided with a kind of water-cooled thin film capacitor, it is characterised in that including housing (2-1), housing (2-1)
(2-2) and capacitance core, capacitance core is connected by the bus in housing (2-1) with DC output end (2-4), DC output end
(2-4) from cooling cavities (2-2) opening on rear side of housing (2-1) expose；The left and right sides at cooling cavities (2-2) opening point
It is not provided with liquid cold joint mouth (2-7) connected with cooling cavities (2-2)；Direct-flow input end (2-3) is provided with front side of housing (2-1).
2. water-cooled thin film capacitor as claimed in claim 1, it is characterised in that cooling cavities (2- on the housing (2-1)
2) periphery at opening is provided with the IGBT fixing threaded holes (2-5) for installing IGBT.
3. water-cooled thin film capacitor as claimed in claim 1, it is characterised in that at the opening of the cooling cavities (2-2)
It is provided with cooling chamber sealing caulking groove (2-6).
4. water-cooled thin film capacitor as claimed in claim 1, it is characterised in that the DC output end (2-4) includes solid
Lead-out terminal moulding (2-4-1) on housing (2-1), the lead-out terminal being inserted in output end moulding (2-4-1)
Pole plate (2-4-2), lead-out terminal pole plate (2-4-2) is connected with bus.
5. water-cooled thin film capacitor as claimed in claim 4, it is characterised in that the lead-out terminal pole plate (2-4-2) is led to
Cross lead-out terminal embedded nut (2-4-3) to be fixed in lead-out terminal moulding (2-4-1).
6. water-cooled thin film capacitor as claimed in claim 1, it is characterised in that the liquid cold joint mouth (2-7) and housing (2-
1) liquid cold joint mouth sealing ring (8) is provided between.
7. a kind of vehicle-mounted driver forceful electric power device, it is characterised in that thin including the water-cooled described in claim 1-6 any one
Membrane capacitance, the housing (2-1) of the thin film capacitor (2) is provided with IGBT (3), and IGBT (3) is fixed on cooling cavities (2-2)
Opening at top, its front side be provided with sensor (6)；The DC input terminal of IGBT (3) is defeated with the direct current of thin film capacitor (2)
Go out end (2-4) connection, AC output terminal (3-1) exposes through sensor (6) from front side of sensor (6).
8. vehicle-mounted driver forceful electric power device as claimed in claim 7, it is characterised in that the IGBT (3) and thin film capacitor
(2) IGBT sealing rings (7) are provided between.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710011797.9A CN106653368B (en) | 2017-01-06 | 2017-01-06 | A kind of water-cooled thin film capacitor |
| PCT/CN2017/081350 WO2018126559A1 (en) | 2017-01-06 | 2017-04-21 | Water-cooled thin film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710011797.9A CN106653368B (en) | 2017-01-06 | 2017-01-06 | A kind of water-cooled thin film capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106653368A true CN106653368A (en) | 2017-05-10 |
| CN106653368B CN106653368B (en) | 2018-11-23 |
Family
ID=58842719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710011797.9A Active CN106653368B (en) | 2017-01-06 | 2017-01-06 | A kind of water-cooled thin film capacitor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106653368B (en) |
| WO (1) | WO2018126559A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108882573A (en) * | 2018-08-29 | 2018-11-23 | 北斗航天汽车（北京）有限公司 | A kind of novel drive motor controller shell and novel drive motor controller |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110223963A (en) * | 2019-05-23 | 2019-09-10 | 顺科新能源技术股份有限公司 | A kind of high-efficiency heat radiation structure and its manufacturing method suitable for high-power IGBT |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201230431Y (en) * | 2008-06-23 | 2009-04-29 | 艾默生网络能源有限公司 | Water cooling power module |
| CN102097921A (en) * | 2011-03-16 | 2011-06-15 | 辽宁荣信防爆电气技术有限公司 | Power unit of power device sharing one water-cooling plate with capacitor |
| CN202135072U (en) * | 2011-08-05 | 2012-02-01 | 南京国睿新能电子有限公司 | Inverted power supply main circuit unit device with module parallelly connected |
| US20160157391A1 (en) * | 2014-11-29 | 2016-06-02 | Zhongshan Broad-Ocean Motor Co., Ltd. | Motor controller |
| CN206412235U (en) * | 2017-01-06 | 2017-08-15 | 上海鹰峰电子科技股份有限公司 | Water-cooled thin film capacitor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201601594U (en) * | 2009-11-11 | 2010-10-06 | 大全电气有限公司 | Half-bridge power unit of wind power generation equipment |
| JP5699995B2 (en) * | 2012-07-02 | 2015-04-15 | 株式会社デンソー | Power converter |
| CN203882809U (en) * | 2014-05-28 | 2014-10-15 | 郑州宇通客车股份有限公司 | Water-cooled super capacitor module set, box body thereof and vehicle |
| CN204884869U (en) * | 2015-08-11 | 2015-12-16 | 宁波市江北九方和荣电气有限公司 | Two water -cooling condensers in direct current center |
-
2017
- 2017-01-06 CN CN201710011797.9A patent/CN106653368B/en active Active
- 2017-04-21 WO PCT/CN2017/081350 patent/WO2018126559A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201230431Y (en) * | 2008-06-23 | 2009-04-29 | 艾默生网络能源有限公司 | Water cooling power module |
| CN102097921A (en) * | 2011-03-16 | 2011-06-15 | 辽宁荣信防爆电气技术有限公司 | Power unit of power device sharing one water-cooling plate with capacitor |
| CN202135072U (en) * | 2011-08-05 | 2012-02-01 | 南京国睿新能电子有限公司 | Inverted power supply main circuit unit device with module parallelly connected |
| US20160157391A1 (en) * | 2014-11-29 | 2016-06-02 | Zhongshan Broad-Ocean Motor Co., Ltd. | Motor controller |
| CN206412235U (en) * | 2017-01-06 | 2017-08-15 | 上海鹰峰电子科技股份有限公司 | Water-cooled thin film capacitor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108882573A (en) * | 2018-08-29 | 2018-11-23 | 北斗航天汽车（北京）有限公司 | A kind of novel drive motor controller shell and novel drive motor controller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106653368B (en) | 2018-11-23 |
| WO2018126559A1 (en) | 2018-07-12 |
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