CN211481790U - Integrated air-cooled BSG motor controller - Google Patents
Integrated air-cooled BSG motor controller Download PDFInfo
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- CN211481790U CN211481790U CN201922254511.7U CN201922254511U CN211481790U CN 211481790 U CN211481790 U CN 211481790U CN 201922254511 U CN201922254511 U CN 201922254511U CN 211481790 U CN211481790 U CN 211481790U
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- heat dissipation
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- motor controller
- bottom plate
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Abstract
The utility model relates to an air-cooled BSG machine controller of integrated form, including PCBA board, heat dissipation bottom plate and apron, current sensor, electric capacity module and power module are fixed in the heat dissipation bottom plate, and electric capacity module's output and power module's input electrical connection, power module's output passes through current sensor and is connected with driving motor, and the PCBA board is connected with pencil plug-in components, and electric capacity module's input and high-pressure pencil are connected, its characterized in that still including arranging the case between heat dissipation bottom plate and the apron in, and the PCBA board is fixed in the recess of box, power module's signal needle and current sensor's signal needle pass through the signal needle through-hole and PCBA board fixed connection of the inside of recess, recess embedment heat dissipation glue, heat dissipation bottom plate, box and apron whole encapsulation. Compared with the prior art, the BSG motor controller has good heat dissipation performance, and has the advantages of being high in integration level, small in size and light in weight.
Description
Technical Field
The utility model belongs to the technical field of electric automobile motor controller and specifically relates to an air-cooled BSG motor controller of integrated form.
Background
The BSG (Belt drive Starter Generator) motor is connected with the engine through a belt pulley, is a Starter and a generator, and can recover a part of energy when the vehicle slides and enters a power generation braking state; when the engine is in a blocked working condition, the BSG motor can be used as a main drive when the engine enters a flameout state, so that the inefficient operation of the engine is avoided, and part of energy consumption can be saved. The system product belongs to the weak hybrid power technology and can achieve the oil saving effect of 5-10%. Along with the light weight of automobiles, the integration degree of the BSG motor and the motor controller is higher and higher, and the integration of the BSG motor and the motor controller is the mainstream trend. The BSG motor has different positions such as P0, P1, P2, P3, P4 relative to the engine, and when the BSG motor is in position P0, the engine temperature is higher, and a large amount of heat is transmitted to the periphery of the motor controller, and the power module is welded on the air-cooled radiator to achieve good heat dissipation, but the PCBA board is still in a high-temperature environment. At the moment, the BSG motor controller has good heat dissipation performance to meet the use requirement. Conventional BSG motor controllers generally adopt a conventional assembly scheme, which results in poor heat dissipation and failure. Therefore, an integrated air-cooled BSG motor controller with high integration level, small size, light weight and good heat dissipation performance is urgently needed to be designed so as to meet the requirements of the domestic new energy automobile industry.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an integrated form forced air cooling BSG motor controller in order to overcome the defect that above-mentioned prior art exists.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides an air-cooled BSG machine controller of integrated form, includes the PCBA board, heat dissipation bottom plate and apron, and current sensor, capacitance module and power module are fixed in the heat dissipation bottom plate, and capacitance module's output and power module's input electrical connection, and power module's output passes through current sensor and is connected with driving motor, and the PCBA board is connected with the pencil plug-in components, and capacitance module's input and high-pressure pencil are connected, still including arranging the box between heat dissipation bottom plate and the apron in, and the PCBA board is fixed in the recess of box, power module's signal needle and current sensor's signal needle pass through the inside signal needle through-hole and PCBA board fixed connection of recess, recess embedment heat dissipation glue, heat dissipation bottom plate, box and apron whole encapsulation.
The bottom of the heat dissipation bottom plate is provided with heat dissipation ribs.
The heat dissipation ribs are wave-shaped heat dissipation ribs.
The cover plate is a plastic cover plate, and the box body is a plastic box body.
The edge of box is equipped with the three through-hole that constitutes article font, power module's output is connected with driving motor three-phase polar plate through the three through-hole that constitutes article font.
The heat dissipation bottom plate is provided with a sealing groove and is connected with the box body in a sealing mode through the sealing groove.
And upright columns are arranged around the power module and the current sensor, and the upright columns are used for fixing the box body.
The wiring harness plug-in is integrally formed with the box body.
Compared with the prior art, the utility model has the advantages of it is following:
(1) the PCBA board is fixed in a groove of the box body, a signal pin of the power module and a signal pin of the current sensor are fixedly connected with the PCBA board through a signal pin through hole in the groove, the groove is filled and sealed with heat dissipation glue, the heat of the PCBA board is conducted to the power module through the signal pins of the power module and the current sensor by the heat dissipation glue, and then heat is dissipated through the heat dissipation bottom plate, so that the BSG motor controller has good heat dissipation performance; the signal pins of the power module and the current sensor are fixedly connected with the PCBA board through the signal pin through holes in the grooves, and the BSG motor controller is different from wire connection and has the advantages of being high in integration level, small in size and light in weight.
(2) The wave-shaped heat dissipation ribs are arranged at the bottom of the heat dissipation bottom plate, so that the strength of the heat dissipation bottom plate can be enhanced, heat dissipation can be well performed on the motor controller, and good heat dissipation is realized under the condition of ensuring high integration.
(3) The plastic cover plate and the plastic box body play a good heat insulation role, the PCBA is prevented from being in a high-temperature environment of engine heat dissipation, integration and lightweight degree are improved, difficulty of assembly is reduced, and the heat insulation cover is more suitable for automatic production compared with a traditional heat insulation cover.
(4) The edge of the box body is provided with three through holes forming a triangle, the output end of the power module is connected with the three-phase polar plate of the driving motor through the three through holes forming the triangle, the structure is convenient to integrate, and the size of the BSG motor controller is smaller.
(5) The heat dissipation bottom plate is provided with a sealing groove and is in sealing connection with the box body through the sealing groove, so that the BSG motor controller has better sealing performance.
(6) The upright columns are arranged around the power module and the current sensor and play a supporting role, so that the box body and the heat dissipation bottom plate can be more stably connected.
(7) Pencil plug-in components and box integrated into one piece have saved pencil fixed bolster and pencil hole, and whole BSG motor controller electrical scheme integrates the degree higher.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of the heat dissipation bottom plate of the present invention;
fig. 3 is a bottom view of the heat dissipating bottom plate of the present invention;
FIG. 4 is a top view of the box body of the present invention;
reference numerals:
1 is a heat dissipation bottom plate; 2 is a capacitance module; 3 is a power module; 4 is a current sensor; 5 is a box body; 6 is PCBA board; 7 is a cover plate; 1-1 is a sealing groove; 1-2 are three through holes; 1-3 are radiating ribs; 5-1 is a triangular groove; 5-2 is a signal pin through hole; 5-3 is a groove; 5-4 is a wiring harness plug-in; 5-4-1 is a wiring harness pin.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Examples
The embodiment provides an integrated air-cooled BSG motor controller, which comprises a PCBA (printed circuit board assembly) board 6, a heat dissipation bottom plate 1, a cover plate 7, a current sensor 4, the capacitor module 2 and the power module 3 are fixed on the heat dissipation bottom plate 1, the output end of the capacitor module 2 is electrically connected with the input end of the power module 3, the output end of the power module 3 is connected with a driving motor through a current sensor 4, the PCBA 6 is connected with a wire harness plug-in 5-4, the input end of the capacitor module 2 is connected with a high-voltage wire harness, the capacitor module further comprises a box body 5 arranged between the heat dissipation bottom plate 1 and a cover plate 7, the PCBA 6 is fixed in a groove 5-3 of the box body 5, a signal pin of the power module 3 and a signal pin of the current sensor 4 are fixedly connected with the PCBA 6 through a signal pin through hole 5-2 in the groove 5-3, the groove 5-3 is filled with heat dissipation glue, and the heat dissipation bottom plate 1; the heat dissipation glue can conduct the heat of the PCBA board 6 to the power module 3 through the signal pins of the power module 3 and the current sensor 4, and then the heat is dissipated through the heat dissipation bottom plate 1, so that the BSG motor controller has good heat dissipation performance; the signal pins of the power module 3 and the current sensor 4 are fixedly connected with the PCBA board 6 through the signal pin through holes 5-2 in the grooves 5-3, and the BSG motor controller has the advantages of being high in integration level, small in size and light in weight, and is different from wire connection.
Preferably, the bottom of the heat dissipation bottom plate 1 is provided with heat dissipation ribs 1-3, and the heat dissipation ribs 1-3 are wave-shaped heat dissipation ribs, so that the strength of the heat dissipation bottom plate 1 can be enhanced, heat dissipation can be well performed on the motor controller, and good heat dissipation can be realized under the condition of ensuring high integration.
Preferably, the cover plate 7 is a plastic cover plate, and the box body 5 is a plastic box body; the plastic cover plate and the plastic box body play a good heat insulation role, the PCBA plate 6 is prevented from being in a high-temperature environment of engine heat dissipation, and compared with a traditional heat shield, the degree of integration and light weight is improved, the difficulty of assembly is reduced, and the automatic production is more suitable.
Preferably, the edge of the box body 5 is provided with three through holes 1-2 forming a triangle, and the output end of the power module 3 is connected with a three-phase pole plate of the driving motor through the three through holes 1-2 forming the triangle; the structure is convenient to integrate, and the size of the BSG motor controller is smaller.
Preferably, the heat dissipation bottom plate 1 is provided with a sealing groove 1-1, and the heat dissipation bottom plate 1 is hermetically connected with the box body 5 through the sealing groove 1-1; the BSG motor controller can have better sealing performance.
Preferably, the power module 3 and the current sensor 4 are provided with columns around, and the columns fix the box body 5; the upright posts play a supporting role, so that the box body 5 and the heat dissipation bottom plate 1 can be more stably connected.
Preferably, the wiring harness insert 5-4 is integrally formed with the case 5; wire harness fixing supports and wire harness holes are omitted, and the whole BSG motor controller electrical scheme is higher in integration degree.
Specifically, the method comprises the following steps:
the three through holes 1-2 in the shape of a Chinese character 'pin' are all rectangular.
The groove 5-3 is an irregular groove, a plurality of circular holes and square holes (wherein the square holes are signal pin through holes) are formed in the groove 5-3, the circular holes are used for positioning when the box body 5 is assembled, the square holes are used for penetrating through signal pins of the power module 3 and the current sensor 4, and the signal pins of the power module 3 and the current sensor 4 are welded with the PCBA board 6; circular and square holes may also be dispersed around the grooves 5-3.
The wiring harness plug-in 5-4 is a male connector of the rotary transformer wiring harness and the thermosensitive wiring harness, the wiring harness plug-in 5-4 is integrated with a contact pin of the rotary transformer wiring harness and the thermosensitive wiring harness at the same time, the contact pin is fixed on the box body 5 through integral forming, and one end of the contact pin is electrically connected with the PCBA board 6 through welding.
And sealant is filled in the sealing groove 1-1 of the heat dissipation bottom plate 1, so that the heat dissipation bottom plate 1 is in gapless connection with the box body 5.
The wave-shaped heat dissipation ribs are radial, and when the rotor runs at a high speed, the wave-shaped heat dissipation ribs increase wind resistance and play a role in heat dissipation for the BSG motor controller.
Two upright posts are arranged around the current sensor 4, and the two upright posts fix the box body 5.
Four columns and two cylindrical bulges are arranged around the power module, the four columns fix the box body 5, and the two cylindrical bulges provide assembly positioning for the box body 5 and correspond to the circular holes in the grooves 5-3.
During assembly, the current sensor 4 is placed in a triangular groove 5-1 at the three through holes 1-2 forming a triangular shape on the heat dissipation bottom plate 1, the output end of the capacitance module 2 is connected with an input end copper bar of the power module 3 in an ultrasonic welding mode, the bottom layer DBC of the power module 3 is directly welded on a rectangular bulge above the heat dissipation bottom plate 1, an output end copper bar of the power module 3 extends to the position above the three through holes 1-2 forming the triangular shape where the current sensor 4 is located, a three-phase pole plate of the driving motor penetrates through the three through holes 1-2 forming the triangular shape to be in contact with the output end copper bar of the power module 3, and electrical connection is achieved in a resistance welding mode. The box body 5 is fixed on the heat dissipation bottom plate 1 through bolts and sealed through a sealing groove 1-1 of the heat dissipation bottom plate 1, the PCBA board 6 is located on a plastic package shell support of the power module 3, the PCBA board 6 is electrically connected with a signal pin of the power module 3, a signal pin of the current sensor 4 and a wiring harness pin 5-4-1 of a wiring harness plug-in component 5-4 respectively, after the PCBA board 6 is assembled, heat dissipation glue is filled and sealed in a groove 5-3 of the box body 5, the heat dissipation glue is prevented from being filled and sealed into a triangular groove 5-1, then a plastic cover plate is fixed on the plastic box body, a sealed space is formed, and the whole air-cooled BSG motor controller assembly is completed.
Claims (8)
1. The integrated air-cooled BSG motor controller comprises a PCBA (printed circuit board assembly) board (6), a heat dissipation bottom plate (1) and a cover plate (7), wherein a current sensor (4), a capacitor module (2) and a power module (3) are fixed on the heat dissipation bottom plate (1), the output end of the capacitor module (2) is electrically connected with the input end of the power module (3), the output end of the power module (3) is connected with a driving motor through the current sensor (4), the PCBA board (6) is connected with a wire harness plug-in (5-4), and the input end of the capacitor module (2) is connected with a high-voltage wire harness, and is characterized by further comprising a box body (5) arranged between the heat dissipation bottom plate (1) and the cover plate (7), the PCBA board (6) is fixed in a groove (5-3) of the box body (5), and a signal pin of the power module (3) and a signal pin of the current sensor (4) are fixedly connected with the PCBA board (6) through a signal pin through hole ( The groove (5-3) is filled and sealed with heat dissipation glue, and the heat dissipation bottom plate (1), the box body (5) and the cover plate (7) are integrally packaged.
2. The integrated air-cooled BSG motor controller according to claim 1, wherein the bottom of the heat-dissipating bottom plate (1) is provided with heat-dissipating ribs (1-3).
3. The integrated air-cooled BSG motor controller of claim 2, wherein the heat dissipation ribs (1-3) are wave-shaped heat dissipation ribs.
4. The integrated air-cooled BSG motor controller of claim 1, wherein the cover plate (7) is a plastic cover plate and the housing (5) is a plastic housing.
5. The integrated air-cooled BSG motor controller according to claim 1, wherein the box (5) has three through holes (1-2) forming a delta shape at the edge thereof, and the output end of the power module (3) is connected to the three-phase pole plate of the driving motor through the three through holes (1-2) forming the delta shape.
6. The integrated air-cooled BSG motor controller according to claim 1, wherein the heat sink base plate (1) is provided with a sealing groove (1-1), and the heat sink base plate (1) is hermetically connected to the box body (5) through the sealing groove (1-1).
7. The integrated air-cooled BSG motor controller of claim 1, wherein the power module (3) and the current sensor (4) are surrounded by a column, and the column is fixed on the box body (5).
8. The integrated air-cooled BSG motor controller of claim 1, wherein the harness insert (5-4) is integrally formed with the housing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922254511.7U CN211481790U (en) | 2019-12-16 | 2019-12-16 | Integrated air-cooled BSG motor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922254511.7U CN211481790U (en) | 2019-12-16 | 2019-12-16 | Integrated air-cooled BSG motor controller |
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| Publication Number | Publication Date |
|---|---|
| CN211481790U true CN211481790U (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922254511.7U Active CN211481790U (en) | 2019-12-16 | 2019-12-16 | Integrated air-cooled BSG motor controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113291159A (en) * | 2021-06-02 | 2021-08-24 | 江苏云意电气股份有限公司 | A supporting structure for 48V's BSG motor inverter |
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2019
- 2019-12-16 CN CN201922254511.7U patent/CN211481790U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113291159A (en) * | 2021-06-02 | 2021-08-24 | 江苏云意电气股份有限公司 | A supporting structure for 48V's BSG motor inverter |
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