CN204497998U - Electric vehicle drives thick film circuit inversion module - Google Patents
Electric vehicle drives thick film circuit inversion module Download PDFInfo
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- CN204497998U CN204497998U CN201520059444.2U CN201520059444U CN204497998U CN 204497998 U CN204497998 U CN 204497998U CN 201520059444 U CN201520059444 U CN 201520059444U CN 204497998 U CN204497998 U CN 204497998U
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- power
- electric vehicle
- thick film
- inversion module
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Abstract
The utility model relates to a kind of electric vehicle and drives thick film circuit inversion module, comprise at least two small-power unsteady flow submodules parallel with one another, small-power unsteady flow submodule comprises substrate, wiring underlayer, electronic component and at least one deck upper layer circuit, wiring underlayer is arranged on substrate, electronic component is arranged on wiring underlayer, and upper layer circuit is arranged on to synthesize on wiring underlayer and with wiring underlayer johning knot has certain thickness circuit; Described electronic component at least comprises igbt chip and diode.It is simple and reasonable for structure, and the sub-unsteady flow module damage of indivedual small-power does not affect its overall use, and volume is little, technique is simple.
Description
Technical field
The utility model relates to unsteady flow building block technique field, and particularly a kind of electric vehicle drives thick film circuit inversion module.
Background technology
High-power IGBT inversion module is mainly used in power system of electric automobile, to change DC power supply into high-voltage ac power and motor in driving power system.But, current high-power IGBT inversion module mainly has following deficiency: (1) its as a whole module, once a certain wafer damage of inside modules, then causes whole high-power IGBT inversion module to work, dynamical system quits work, and brings certain danger; (2) due to the employing of high-power IGBT inversion module is high-power IGBT chip, under equal material design technology, igbt chip power is larger, its volume is also larger, because caloric value during its work is very large, so, even if arranging radiator (water-cooled or air-cooled etc.) near the surface location of high-power IGBT chip, also be difficult to make the heat of high-power IGBT chip internal fall apart, add the risk of high-power IGBT wafer damage, reduce the useful life of whole high-power IGBT inversion module.
Utility model content
The purpose of this utility model is to provide a kind of simple and reasonable for structure, and the sub-unsteady flow module damage of indivedual small-power does not affect its overall use, and volume is little, the simple electric vehicle of technique drives thick film circuit inversion module, to overcome the deficiencies in the prior art.
The purpose of this utility model is achieved in that
A kind of electric vehicle drives thick film circuit inversion module, comprise at least two small-power unsteady flow submodules parallel with one another, it is characterized in that: described small-power unsteady flow submodule comprises substrate, wiring underlayer, electronic component and at least one deck upper layer circuit, wiring underlayer is arranged on substrate, electronic component is arranged on wiring underlayer, and upper layer circuit is arranged on to synthesize on wiring underlayer and with wiring underlayer johning knot has certain thickness circuit; Described electronic component at least comprises igbt chip and diode.
The purpose of this utility model can also adopt following technical measures to solve:
As scheme more specifically, described electronic component has the pin contacted with circuit conductive, and pin is fixed between wiring underlayer and upper layer circuit.
Described substrate is flexible fiber sheet material.
On described substrate, at least corresponding electronic component is provided with phase transformation material heat absorption insulating cover and sealing heat radiation skin outward successively, and sealing heat radiation skin covers outside described substrate and phase transformation material heat absorption insulating cover.This structure is by being encapsulated in outside small-power unsteady flow submodule by under normality in solid-state phase transformation material heat absorption insulating cover, when small-power unsteady flow submodule caloric value reaches the temperature of phase transformation material phase transformation, phase transformation material heat absorption insulating cover undergoes phase transition, at this moment phase-change material will absorb or discharge a large amount of latent heat, thus make small-power unsteady flow submodule fast cooling, to improve its useful life.
Described base plate bottom is also provided with radiator.
Described radiator surface is provided with radiating fin, is formed with water stream channel between radiating fin, and water stream channel is provided with secondary water inlet and secondary delivery port; The water stream channel of each small-power unsteady flow submodule is connected in parallel between main water inlet tube and main water return tube, main water inlet tube and main water return tube are respectively equipped with water main inlet port and main water return outlet, the secondary water inlet of the water stream channel of each small-power unsteady flow submodule is equal to main water return outlet distance sum with secondary delivery port to water main inlet port distance, to realize water stream channel, to be provided with the hydraulic pressure of secondary water inlet and secondary delivery port equal, and namely cooling rate is consistent everywhere for radiator.
The wiring underlayer of described small-power unsteady flow submodule, electronic component and upper layer circuit form three groups of phase output circuits, and described phase output circuit comprises two igbt chips and two diodes; Wherein, collector electrode and the positive pole inlet highway of an igbt chip are electrically connected, and form a cross streams output after its emitter is connected with the collector electrode of another igbt chip, emitter and the negative pole inlet highway of another igbt chip are electrically connected; A diode is parallel with between the collector electrode of each igbt chip and emitter.
Described electronic component also comprises filter capacitor, and filter capacitor is connected between positive pole inlet highway and negative pole inlet highway.
Described small-power unsteady flow submodule is provided with power-off isolation structure, and power-off isolation structure is separately positioned on positive pole inlet highway and negative pole inlet highway; Or, on the collector electrode that power-off isolation structure is connected on igbt chip and/or emitter.The effect of power-off isolation structure is when circuit abnormal, and power-off isolation structure is in and can resets or not reducible open-circuit condition, to protect small-power unsteady flow submodule.
Described power-off isolation structure is fuse, relay, switch element or the active fuse that is combined with control circuit.Above-mentioned fuse and initiatively fuse can not reset after disconnecting, and can reset after relay and switch element disconnect.
The beneficial effects of the utility model are as follows:
(1) this kind of electric vehicle drives thick film circuit inversion module parallel with one another by least two and the small-power unsteady flow submodule of vertical stack or laterally arrangement is formed, in use, wherein a part of sub-unsteady flow module damage of small-power, also can guarantee that dynamical system continues to run, so that user carries out next step remedial measure; In addition, small-power unsteady flow submodule adopts brand-new technique to be arranged on substrate and forms circuit by metal superposition in layer, the wiring underlayer of this circuit mainly adopts the mode of pasting (being coated with heat conduction, electrocondution slurry) to be formed, and the circuit of upper strata superposition is formed mainly through metal thermal spraying technology or laser printing clinkering technology, thus the volume achieving this circuit is little, advantages such as (can be 10 times of current technique) that production technology is simple, cost is low, pollution-free, production efficiency is high;
(2) upper layer circuit can need the pin welded with circuit to be fixed on circuit in electronic component and make pin and circuit form good conductive contact while being formed;
(3), when adopting metal thermal spraying technology or laser printing clinkering technology to prepare upper strata circuit, its working temperature is below 80 DEG C;
(4) because small-power unsteady flow submodule surface all has radiator, so electric vehicle can be made to drive the outer surface of thick film circuit inversion module and inside to dispel the heat simultaneously, the loose power of quick transmission dissipation, the temperature that planarization dissipation power causes assembles temperature rise, reduce the injury of local temperature rise to element and material, improve the useful life of its module;
(5) even if the sub-unsteady flow module damage of a certain small-power, also only need to change separately, to reduce maintenance cost.
Accompanying drawing explanation
Fig. 1 is the utility model one example structure schematic diagram.
Fig. 2 is electronic component connecting structural schematic diagram in small-power unsteady flow submodule.
Fig. 3 is the A-A sectional structure schematic diagram of Fig. 2.
Fig. 4 is small-power unsteady flow submodule radiator structure schematic diagram.
Fig. 5 is the utility model cooling water channel connection diagram.
Fig. 6 is another example structure schematic diagram of the utility model.
Fig. 7 is the another example structure schematic diagram of the utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Embodiment one, see shown in Fig. 1 to Fig. 3, a kind of electric vehicle drives thick film circuit inversion module, comprising at least two small-power unsteady flow submodule 1(the present embodiment parallel with one another is that three small-power unsteady flow submodules 1 are longitudinally connected in parallel, can be according to actual needs, make is by two, four, five etc. are connected in parallel, form powerful unsteady flow module), small-power unsteady flow submodule 1 comprises substrate 14, wiring underlayer 13, electronic component and at least one deck upper layer circuit 12, wiring underlayer 13 arranges on the substrate 14, electronic component is arranged on wiring underlayer 13, upper layer circuit 12 is arranged on wiring underlayer 13, and synthesize with wiring underlayer 13 johning knot there is certain thickness circuit, described electronic component at least comprises igbt chip 3 and diode 2.
Described electronic component has the pin 31 contacted with circuit conductive, and pin 31 is fixed between wiring underlayer 13 and upper layer circuit 12.
Described substrate 14 is flexible fiber sheet material.
Shown in composition graphs 4, on described substrate 14, at least corresponding electronic component is provided with phase transformation material heat absorption insulating cover 8 and sealing heat radiation outer 9 outward successively, and sealing heat radiation outer 9 covers outside described substrate 14 and phase transformation material heat absorption insulating cover 8.
Radiator 10 is also provided with bottom described substrate 14.As better execution mode, can be provided with plastic package in radiator 10 periphery, outer 9 edges of sealing heat radiation extend on plastic package, to guarantee its insulating properties.
Shown in composition graphs 5, described radiator 10 surface is provided with radiating fin, is formed with water stream channel 101 between radiating fin, and water stream channel 101 is provided with secondary water inlet 102 and secondary delivery port 103; The water stream channel 101 of each small-power unsteady flow submodule 1 is connected in parallel between main water inlet tube 20 and main water return tube 30, main water inlet tube 20 and main water return tube 30 are respectively equipped with water main inlet port 201 and main water return outlet 301, secondary water inlet 102 to water main inlet port 201 distance of the water stream channel 101 of each small-power unsteady flow submodule 1 is equal to main water return outlet 301 distance sum with secondary delivery port 103, and the secondary water inlet 102 realizing water stream channel 101 is equal with secondary delivery port 103 hydraulic pressure.
Above-mentioned water stream channel 101 is not limited to water flowing, and can circulate in it cooling fluid, water etc. have the flow media of heat sinking function, to improve radiating effect.
The wiring underlayer 13 of described small-power unsteady flow submodule 1, electronic component and upper layer circuit 12 form three groups of phase output circuits, and described phase output circuit comprises two igbt chips 3 and two diodes 2; Wherein, collector electrode and the positive pole inlet highway 5 of an igbt chip 3 are electrically connected, and form a cross streams output after its emitter is connected with the collector electrode of another igbt chip 3, emitter and the negative pole inlet highway 6 of another igbt chip 3 are electrically connected; The ac output end of three groups of phase output circuits forms three-phase output end 11(u, v, w) jointly.A diode 2 is parallel with between the collector electrode of each igbt chip 3 and emitter.
Described electronic component also comprises filter capacitor 7, and filter capacitor 7 is connected between positive pole inlet highway 5 and negative pole inlet highway 6.
Described small-power unsteady flow submodule 1 is provided with power-off isolation structure, and power-off isolation structure is separately positioned on positive pole inlet highway 5 and negative pole inlet highway 6.Described power-off isolation structure is fuse 4.When control circuit occurs abnormal, fuse 4 is in not reducible open-circuit condition, makes both positive and negative polarity inlet highway and electric vehicle drive the connection of thick film circuit inversion module to disconnect (being namely in bus isolation), to protect small-power unsteady flow submodule.
Its operation principle is: shown in Figure 1, thick film circuit inversion module is driven to be connected with three phase electric machine M for electric vehicle, by together parallel with one another for terminal identical in each small-power unsteady flow submodule 1, and each small-power unsteady flow submodule 1 is vertical or horizontal stacking, then three-phase alternating current output 11 is connected with three phase electric machine M, after electric vehicle drives the logical upper DC power supply of thick film circuit inversion module, three phase electric machine M gets final product work.Because electric vehicle drives thick film circuit inversion module to be made up of multiple small-power unsteady flow submodule 1, wherein one or more small-power unsteady flow submodules 1 are also unlikely to allow three phase electric machine M quit work, can, at crucial moment, dynamical system be allowed to work on to a certain state.
Embodiment two; be with the difference of embodiment one: shown in Figure 6; power-off isolation structure is connected on igbt chip 3 and between positive pole inlet highway 5 and negative pole inlet highway 6; when control circuit occurs abnormal; fuse 4 is in not reducible open-circuit condition; the connection of both positive and negative polarity inlet highway and igbt chip 3 is disconnected (being namely in power tube isolation), to protect small-power unsteady flow submodule.
Embodiment three, is with the difference of embodiment two: shown in Figure 7, and power-off isolation structure is connected between igbt chip 3 and three-phase alternating current output 11, can realize power tube isolation equally.
Embodiment four, is with the difference of embodiment one or two or three: described fuse is replaced with relay, not shown.
Embodiment five; be with the difference of embodiment one or two or three: described fuse is replaced with switch element or active fuse; switch element or initiatively fuse are combined with control circuit; when circuit occurs abnormal; control circuit gives switch element or active fuse one control signal; it is allowed initiatively to disconnect, to protect electric vehicle to drive thick film circuit inversion module, not shown.
Claims (10)
1. an electric vehicle drives thick film circuit inversion module, comprise at least two small-power unsteady flow submodules parallel with one another, it is characterized in that: described small-power unsteady flow submodule comprises substrate, wiring underlayer, electronic component and at least one deck upper layer circuit, wiring underlayer is arranged on substrate, electronic component is arranged on wiring underlayer, and upper layer circuit is arranged on to synthesize on wiring underlayer and with wiring underlayer johning knot has certain thickness circuit; Described electronic component at least comprises igbt chip and diode.
2. electric vehicle drives thick film circuit inversion module according to claim 1, it is characterized in that: described electronic component has the pin contacted with circuit conductive, and pin is fixed between wiring underlayer and upper layer circuit.
3. electric vehicle drives thick film circuit inversion module according to claim 1, it is characterized in that: described substrate is flexible fiber sheet material.
4. electric vehicle drives thick film circuit inversion module according to claim 1, it is characterized in that: on described substrate, at least corresponding electronic component is provided with phase transformation material heat absorption insulating cover and sealing heat radiation skin outward successively, sealing heat radiation skin covers outside described substrate and phase transformation material heat absorption insulating cover.
5. according to any one of Claims 1-4, electric vehicle drives thick film circuit inversion module, it is characterized in that: described base plate bottom is also provided with radiator.
6. electric vehicle drives thick film circuit inversion module according to claim 5, and it is characterized in that: described radiator surface is provided with radiating fin, is formed with water stream channel between radiating fin, water stream channel is provided with secondary water inlet and secondary delivery port; The water stream channel of each small-power unsteady flow submodule is connected in parallel between main water inlet tube and main water return tube, main water inlet tube and main water return tube are respectively equipped with water main inlet port and main water return outlet, and the secondary water inlet of the water stream channel of each small-power unsteady flow submodule is equal to main water return outlet distance sum with secondary delivery port to water main inlet port distance.
7. electric vehicle drives thick film circuit inversion module according to claim 1, it is characterized in that: the wiring underlayer of described small-power unsteady flow submodule, electronic component and upper layer circuit form three groups of phase output circuits, and described phase output circuit comprises two igbt chips and two diodes;
Wherein, collector electrode and the positive pole inlet highway of an igbt chip are electrically connected, and form a cross streams output after its emitter is connected with the collector electrode of another igbt chip, emitter and the negative pole inlet highway of another igbt chip are electrically connected;
A diode is parallel with between the collector electrode of each igbt chip and emitter.
8. electric vehicle drives thick film circuit inversion module according to claim 7, and it is characterized in that: described electronic component also comprises filter capacitor, filter capacitor is connected between positive pole inlet highway and negative pole inlet highway.
9. according to claim 7 or 8, electric vehicle drives thick film circuit inversion module, and it is characterized in that: described small-power unsteady flow submodule is provided with power-off isolation structure, power-off isolation structure is separately positioned on positive pole inlet highway and negative pole inlet highway; Or, on the collector electrode that power-off isolation structure is connected on igbt chip and/or emitter.
10. electric vehicle drives thick film circuit inversion module according to claim 9, it is characterized in that: described power-off isolation structure is fuse, relay, switch element or the active fuse that is combined with control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520059444.2U CN204497998U (en) | 2015-01-28 | 2015-01-28 | Electric vehicle drives thick film circuit inversion module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520059444.2U CN204497998U (en) | 2015-01-28 | 2015-01-28 | Electric vehicle drives thick film circuit inversion module |
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| Publication Number | Publication Date |
|---|---|
| CN204497998U true CN204497998U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520059444.2U Expired - Fee Related CN204497998U (en) | 2015-01-28 | 2015-01-28 | Electric vehicle drives thick film circuit inversion module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086892A1 (en) * | 2014-12-05 | 2016-06-09 | 广东明路电力电子有限公司 | Metal lamination connecting circuit and preparation method therefor |
| CN113241956A (en) * | 2021-06-18 | 2021-08-10 | 中国第一汽车股份有限公司 | Inverter assembly |
-
2015
- 2015-01-28 CN CN201520059444.2U patent/CN204497998U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086892A1 (en) * | 2014-12-05 | 2016-06-09 | 广东明路电力电子有限公司 | Metal lamination connecting circuit and preparation method therefor |
| CN113241956A (en) * | 2021-06-18 | 2021-08-10 | 中国第一汽车股份有限公司 | Inverter assembly |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20210128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |