CN212876508U

CN212876508U - Integrated dual-drive system control device

Info

Publication number: CN212876508U
Application number: CN202022149153.6U
Authority: CN
Inventors: 陈登峰; 张舟云; 陈雷; 叶茂; 谢鸣锋; 温小伟; 许晨昊
Original assignee: Shanghai Auto Edrive Co Ltd; Shanghai Auto Edrive Engineering Technology Research Center; Shanghai Edrive Co Ltd
Current assignee: Shanghai Auto Edrive Co Ltd; Shanghai Auto Edrive Engineering Technology Research Center; Shanghai Edrive Co Ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-04-02
Anticipated expiration: 2030-09-27

Abstract

The utility model relates to an integrated dual-drive system control device, which comprises a drive unit board, a power component, a shielding pressure plate, a Hall detector, an alternating current output copper plate, an output support, a thin film capacitor and a radiator, wherein the center of the radiator is provided with a strip hollow groove; the power assembly, the shielding pressing plate, the output support, the alternating current output copper plate and the Hall detector are arranged in two sets, and the power assembly, the shielding pressing plate, the output support, the alternating current output copper plate and the Hall detector are symmetrically arranged on two sides of the long hollow groove on the radiator. The driving unit board is arranged above the shielding pressing board and the power assembly, two sides of the driving unit board are respectively and fixedly connected with the root connecting columns on the two sets of output supports, and the driving unit board is electrically connected with the signal pins of the power assembly. Compared with the prior art, the utility model has the advantages of the integrated level is high, compact structure, assembly flexibility is good and maintainability is high.

Description

Integrated dual-drive system control device

Technical Field

The utility model belongs to the technical field of new energy automobile dual drive system and specifically relates to an integrated form dual drive system controlling means is related to.

Background

The motor controller for the traditional new energy automobile consists of an Insulated Gate Bipolar Transistor (IGBT), a membrane capacitor, a Hall detector, a shielding plate and a control plate, wherein all units are arranged in a stacked mode and then are installed inside a motor controller box body. The IGBT, the membrane capacitor, the driving plate, the control plate and the shielding plate are not manufactured and fixed, and each part is independently assembled inside the controller box, so that the space utilization efficiency of the controller box is low, the assembly is inconvenient, and the maintenance is inconvenient. Especially in the middle of the bi-motor drive control system, need assemble two sets of same power modules, same cooling system also needs the enlarged area to dispel the heat for two modules, and this kind of arrangement mode of power module and heat dissipation water course that separates can cause whole electric device's volume great, and the integrated level is not high, and assembly process is loaded down with trivial details moreover, hardly satisfies the development demand that current motor controller integrates, miniaturization, automated production.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a control device for integrated dual-drive system, which overcomes the above-mentioned drawbacks of the prior art.

The purpose of the utility model can be realized through the following technical scheme:

an integrated dual-drive system control device comprises a driving unit plate, a power assembly, a shielding pressing plate, a Hall detector, an alternating current output copper plate, an output support, a thin-film capacitor and a radiator, and is characterized in that a long-strip hollow groove is formed in the center of the radiator, a copper bar supporting leg is arranged on the top surface of the thin-film capacitor, the thin-film capacitor is fixed on the lower bottom surface of the radiator, and the copper bar supporting leg penetrates through the long-strip hollow groove;

the power assembly, the shielding pressing plate, the output support, the alternating current output copper plate and the Hall detector are arranged in two sets, the power assembly, the shielding pressing plate, the output support, the alternating current output copper plate and the Hall detector are symmetrically arranged on two sides of the long hollow groove on the radiator, the output support is fixed on the side edge of the top surface of the radiator in each side, the Hall detector is installed on the output support, the power assembly is located on the top surface of the radiator, the electrical input end of the power assembly is connected with the copper bar supporting leg, the electrical output end of the power assembly is connected with the alternating current output copper plate, one end of the alternating current output copper plate penetrates through the Hall detector and then is fixedly connected with the end connecting;

the driving unit board is arranged above the shielding pressing board and the power assembly, two sides of the driving unit board are respectively and fixedly connected with the root connecting columns on the two sets of output supports, and the driving unit board is electrically connected with the signal pins of the power assembly.

Further, power component include upper tube IGBT and low tube IGBT of the same structure, upper tube IGBT and low tube IGBT are reverse each other and set up side by side on the insulation board, the copper bar that upper tube IGBT and low tube IGBT one side homonymy were arranged is power component's electrical input end, the copper bar of opposite side is power component's electrical output.

Furthermore, the copper bar support legs of the film capacitor comprise four rows of copper bars which are stacked side by side, and the copper bars are electrically isolated through insulating paper.

Further, the radiator include last heating panel and lower heating panel of upper and lower structure, the lower surface of going up the heating panel is equipped with first cooling channel and the second cooling channel of symmetry, first cooling channel's both ends are equipped with first water inlet and first delivery port respectively, second cooling channel's both ends are equipped with second water inlet and second delivery port respectively, first delivery port and second water inlet communicate each other.

Furthermore, a first connecting channel, a second connecting channel, a third water outlet and a third water inlet are arranged on the upper surface of the lower heat dissipation plate; two ends of the first connecting channel are respectively communicated with the first water outlet and the second water inlet; two ends of the second connecting channel are respectively communicated with the second water outlet and the third water outlet; and two ends of the third connecting channel are respectively communicated with the first water inlet and the third water inlet.

Furthermore, the first cooling channel and the second cooling channel are both of cuboid cavity structures, and oval heat dissipation needles which are arranged in a staggered mode are arranged in the cavities.

Furthermore, two concave arc-shaped ribs are arranged in the middle of the shielding pressure plate and used for pressing the power assembly.

Furthermore, the power assembly and the alternating current output copper plate are fixedly connected through bolts.

Further, the power component and the alternating current output copper plate are connected through laser welding.

Furthermore, a plurality of fixed supporting points are distributed on the outer ring of the radiator, and other elements can be connected through bolts.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a with integrated arranging on a radiator of electric parts such as power component, two sets of film capacitor piece, two sets of hall detectors, two sets of shielding clamp plates, two sets of alternating current output copper, drive unit board, fix the film capacitor piece in the radiator bottom surface and be connected with power module, formed two sets of integral motor control system of high integration. All components are fixed by the radiator, so that the whole control device is stable and reliable, the volume of the whole control device is reduced, and the modularization degree is improved; and the highly integrated control device can be directly and integrally installed in the controller box or taken out during the reassembling process, so that the assembling efficiency is improved, the maintainability of the control device is improved, and the integration degree and the flexibility of the product are improved.

2. The utility model discloses basically, the mode that adopts the symmetrical arrangement to arrange, most part symmetrical arrangement can realize that spare part is general, avoids the thunder with the part, has reduced part kind and quantity, has reduced whole controlling means's interference and inductance, is favorable to whole device functional performance to exert better.

3. The IGBTs in the power assembly are symmetrically arranged, so that the current performance and the voltage performance of the system are better, the inductance is small, the generation of voltage spikes and current spikes can be effectively avoided, and the failure probability of the IGBTs is reduced.

4. The radiator adopts upper heating panel and lower heating panel to constitute, two heating panels assemble after, just formed the dual drive system heat dissipation channel of a series connection, in operation, the coolant liquid at first flows into third connecting channel from the third inlet port, then gets into first water inlet, and enter into first cooling channel, then flow out from first delivery port, enter into first connecting channel, then enter into the second water inlet and flow into second cooling channel, then flow out from the second delivery port, enter into the second connecting channel, flow out the radiator from the third delivery port at last, accomplish whole controlling means high-efficiently dispels the heat.

5. The outer ring of the radiator is provided with a plurality of fixed supporting points, when all elements are assembled, all parts can be integrated and fixed through bolts, and the connecting mode is simple and easy to implement, low in cost and suitable for batch production.

Drawings

Fig. 1 is an exploded view of the structure of the present invention.

Fig. 2 is a schematic structural diagram of a power unit.

Fig. 3 is a schematic structural diagram of the thin film capacitor.

Fig. 4 is a schematic structural view of an ac output copper plate.

Fig. 5 is a schematic structural view of the output support.

Fig. 6 is a schematic structural diagram of a heat sink.

Fig. 7 is a schematic structural view of the upper heat dissipation plate.

Fig. 8 is a schematic structural view of the lower heat dissipation plate.

Fig. 9 is a schematic structural view of the shielding pressure plate.

The attached drawings are marked as follows: 1. a driving unit board, 2, a power assembly, 3, a shielding pressure plate, 4, a hall detector, 5, an alternating current output copper plate, 6, an output support, 7, a thin film capacitor, 8, a radiator, 21, an insulating plate, 22, an upper pipe IGBT, 23, a lower pipe IGBT, 24, an electrical output end, 25, an anode input end, 26, a cathode input end, 31, an arc rib, 61, a root connecting column, 62, an end connecting column, 71, a copper bar leg, 72, a fixed fulcrum, 81, an upper heat dissipation plate, 811, a first cooling channel, 813, a second cooling channel, 814, a first water inlet, 815, a first water outlet, 816, a second water inlet, 817, a second water outlet, 82, a lower heat dissipation plate, 821, a first connecting channel, 823, a second connecting channel, 824, a third water outlet, 825, a third water inlet, 826, a third connecting channel, 83, a hollowed-out groove, 84, a mounting column, 85. and fixing the fulcrum.

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.

As shown in fig. 1, the present application provides an integrated dual-drive system control device, which includes a driving unit board 1, a power assembly 2, a shielding pressure plate 3, a hall detector 4, an ac output copper plate 5, an output support 6, a thin-film capacitor 7, and a heat sink 8. The center of the heat sink 8 is provided with a long hollow-out groove 83, and the top surface of the thin film capacitor 7 is provided with a copper bar support leg 71. After the top surface of the thin film capacitor 7 and the bottom surface of the heat sink 8 are fixed, the copper bar support 71 passes through the elongated hollow groove 83 from bottom to top.

The power component 2, the shielding pressing plate 3, the output support 6, the alternating current output copper plate 5 and the Hall detector 4 are arranged in two sets, and are symmetrically arranged on two sides of the long hollow groove 83 on the radiator 8. The specific structure in each side is as follows: the output support 6 is fixed on the top side of the radiator 8, and the Hall detector 4 is installed on the output support 6. The power component 2 is positioned on the top surface of the radiator 8, the electrical input end of the power component 2 is connected with the copper bar support leg 71, the electrical output end of the power component is connected with the alternating current output copper plate 5, and one end of the alternating current output copper plate 5 penetrates through the Hall detector 4 and then is fixedly connected with the end connecting column 62 of the output support 6. The shielding pressing plate 3 is installed on the power component 2, and two ends of the shielding pressing plate 3 are fixedly connected with the top surface of the radiator 8.

The driving unit plate 1 is arranged above the shielding pressing plate 3 and the power component 2, and two sides of the driving unit plate 1 are respectively and fixedly connected with root connecting columns 61 on the two sets of output supports 6. The driving unit board 1 is electrically connected with the signal pin of the power component 2. All components and parts in the whole device are fixed by the radiator 8, so that the whole control device is stable and reliable, the size of the whole control device is reduced, and the modularization degree is improved. And the highly integrated control device can be directly and integrally installed in the controller box or taken out during the reassembling process, so that the assembling efficiency is improved, the maintainability of the control device is improved, and the integration degree and the flexibility of the product are improved.

As shown in fig. 2, each set of power assemblies 2 consists of three power cells, each power cell comprising an insulating plate 21, an upper tube IGBT22, a lower tube IGBT23, an electrical output 24, a positive input 25, and a negative input 26. The upper tube IGBT22 and the lower tube IGBT23 have the same structure, are placed side by side in reverse above the insulating plate 21, and are fixed by vacuum reflow soldering. And one end of the upper tube IGBT22 and one end of the lower tube IGBT23 are wider in copper bar, and the other end of the upper tube IGBT22 and the lower tube IGBT are narrower in copper bar. Connecting the narrower copper bar at one end of the upper tube IGBT22 and the wider copper bar at one end of the lower tube IGBT23 together is the electrical output 24 of the power module 2, which electrical output 24 is used to electrically connect with the ac output copper plate 5. The wider copper bar at one end of the upper tube IGBT22 and the narrower copper bar at one end of the lower tube IGBT23 are connected together to form the electrical input end of the power module 2, wherein the wider copper bar is the positive input end 25 and is electrically connected to the positive input end of the thin film capacitor 7, and the narrower copper bar is the negative input end 26 and is electrically connected to the negative input end of the thin film capacitor 7.

As shown in fig. 3, four pairs of symmetrically arranged fixed supporting points 72 are provided on both sides of the thin film capacitor 7 for connecting the heat sink 8. The negative input terminal and the positive input terminal of the thin-film capacitor 7 are integrated into a copper bar support 71, and are disposed on the potting surface (top surface) of the thin-film capacitor 7. Copper bar stabilizer blade 71 is total four rows of copper bar of stromatolite side by side and constitutes, realizes electrical isolation through insulating paper between the copper bar, and the copper bar end is the level and bends to the bottom surface is inlayed and is had fixation nut. The copper bar feet 71 can be conveniently connected to the electrical inputs of the power module 2. In another embodiment, the copper bar support 71 and the electrical input end of the power module 2 can be assembled by full-automatic laser welding, and the requirement of electrical connection can be met, so that not only is the inductance reduced, but also the size can be saved.

As shown in fig. 4, the ac output copper plate 5 is composed of three L-shaped bent copper bars, and is symmetrical with respect to the center in structure.

As shown in fig. 5, the output support 6 has four aligned root connection posts 61 and three aligned end connection posts 62. The hall detector 4 is mounted between the root connection post 61 and the tip connection post 62. The root connection post 61 is for bolting with the drive unit plate 1. The end connecting column 62 is used for fixedly connecting the end of the alternating current output copper plate 5 penetrating the hall detector 4.

As shown in fig. 6 to 8, the heat sink 8 includes an upper heat dissipation plate 81 and a lower heat dissipation plate 82. The radiator 8 is symmetrical on the left side and the right side, two rectangular bosses are arranged on the upper surface of the radiator 8, and mounting columns 84 are respectively arranged on two sides of each boss and used for connecting two ends of the shielding pressing plate 3. The bottom surface of the upper heat dissipation plate 81 and the upper surface of the lower heat dissipation plate 82 are fitted and fixed, and sealed by a sealant. A plurality of fixed supporting points 85 are distributed on the outer ring of the radiator 8, and when all elements are assembled, all parts can be integrated and fixed through bolts.

The lower surface of the upper heat dissipation plate 81 is provided with a first cooling passage 811, a second cooling passage 813, a first water inlet 814, a first water outlet 815, a second water inlet 816 and a second water outlet 817. The first water inlet 814, the first water outlet 815, the second water inlet 816 and the second water outlet 817 are cylindrical notches. The first water inlet 814 and the first water outlet 815 are respectively disposed at two ends of the first cooling channel 811 and are communicated with the first cooling channel 811, and the second water inlet 816 and the second water outlet 817 are disposed at two ends of the second cooling channel 813 and are communicated with the second cooling channel 813. The first water outlet 815 and the second water inlet 816 are communicated at the same side. The first cooling channel 811 and the second cooling channel 813 are symmetrically arranged in parallel and are both rectangular cavity structures, and oval heat dissipation pins which are arranged in a staggered mode are arranged inside the cavities and used for improving heat dissipation efficiency.

The upper surface of the lower heat dissipation plate 82 is provided with a first connection passage 821, a second connection passage 823, a third connection passage 826, a third water outlet 824, and a third water inlet 825. The first, second, and

third connection passages

821, 823, and 826 have a rectangular groove structure. Two ends of the first connecting channel 821 are respectively communicated with the first water outlet 815 and the second water inlet 816; two ends of the second connecting channel 823 are respectively communicated with a second water outlet 817 and a third water outlet 824; both ends of the third connecting passage 826 communicate with the first water inlet 814 and the third water inlet 825, respectively.

In operation, the cooling liquid first flows into the third connecting channel 826 from the third water inlet 825, then enters the first water inlet 814, enters the first cooling channel 811, and then flows out from the first water outlet 815 to enter the first connecting channel 821; then enters the second water inlet 816 and flows into the second cooling channel 813; then flows out from the second water outlet 817, enters the second connecting channel 823, and finally flows out of the radiator from the third water outlet 824, so that the whole control device is efficiently radiated.

As shown in fig. 9, the middle of the shielding pressure plate 3 has two concave arc-shaped ribs 31, which can compress the power module 2, ensure that the power module 2 is tightly attached to the heat sink 8 in the work place, and ensure timely heat dissipation.

The fixing positions of the above parts are only fixing positions in this embodiment, for example, the fixing position between the upper tube IGBT22 and the lower tube IGBT23 inside the power module 2 is only one fixing position in this embodiment, for example, the upper tube IGBT22 and the lower tube IGBT23 may also be arranged in parallel by using a single line, and in actual operation, structural changes of the power device may also be realized by changing the fixing positions of the upper tube IGBT22 and the lower tube IGBT23, as long as the electrical connection structure of the power modules 2 is ensured to meet the requirements. Similarly, the structural arrangement of the upper heat dissipation plate 81 and the lower heat dissipation plate 82 in this embodiment adopts a flow channel designed by a serial cooling channel, so that the structure is simple and convenient, the operation is easy, and the structure for outputting the parallel water channels can be realized by changing the structure.

The assembly process of the device is as follows:

(1) the upper heat dissipation plate 81 and the lower heat dissipation plate 82 are fixed together by bolts, and the sealing position is sealed by applying sealant, so that the finished radiator 8 is formed.

(2) The thin film capacitor 7 is then mounted and fixed to the bottom surface of the heat sink 8.

(3) The upper tube IGBT22 and the lower tube IGBT23 of the power unit are arranged in a side-by-side reverse direction and are formed into one power unit through reflow soldering, and the three power units form one power assembly 2.

(4) Heat-conducting silicone grease is coated on the bottom surface of the insulating plate 21 of the power component 2, then the insulating plate is pressed on a boss on the upper surface of the radiator 8, the power component 2 is pressed above the radiator 8 by using the shielding pressing plate 3, the insulating plate is fixed on the radiator 8 and the shielding pressing plate 3 by using bolts, and the positive input end 25 and the negative input end 26 of the power component 2 are respectively fixed with the copper bar supporting feet 71 of the film capacitor 7 by using the bolts.

(5) Fixing an output support 6 on a radiator 8, then enabling an alternating current output copper plate 5 to pass through a Hall detector 4, connecting one end of the alternating current output copper plate 5 with an electrical output end 24 of a power assembly 2, and fixing the other end of the alternating current output copper plate 5 on an end connecting column 62 of the output support 6 through a bolt; the hall detector 4 is fixed to the output support 6.

(6) The driving unit board 1 is fixed on the root connecting column 61 on the output support 6, and the signal pins of the power component 2 and the driving unit board 1 are connected and fixed by soldering.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. An integrated dual-drive system control device comprises a driving unit plate (1), a power assembly (2), a shielding pressing plate (3), a Hall detector (4), an alternating current output copper plate (5), an output support (6), a thin-film capacitor (7) and a radiator (8), and is characterized in that a long-strip hollowed-out groove (83) is formed in the center of the radiator (8), a copper bar supporting leg (71) is arranged on the top surface of the thin-film capacitor (7), the thin-film capacitor (7) is fixed on the lower bottom surface of the radiator (8), and the copper bar supporting leg (71) penetrates through the long-strip hollowed-out groove (83);

the power component (2), the shielding pressing plate (3), the output support (6), the alternating current output copper plate (5) and the Hall detector (4) are of two sets, the two sets are symmetrically arranged on the radiator (8) in two sides of the long strip hollow groove (83), the output support (6) is fixed on the side edge of the top surface of the radiator (8) in each side, the Hall detector (4) is installed on the output support (6), the power component (2) is located on the top surface of the radiator (8), the electrical input end of the power component (2) is connected with the copper bar support leg (71), the electrical output end (24) of the power component (2) is connected with the alternating current output copper plate (5), one end of the alternating current output copper plate (5) penetrates through the end connecting column (62) of the Hall detector (4) and then fixedly connected with the output support (6), and the shielding pressing plate (3) is installed on the power component (, the two ends of the shielding pressing plate (3) are connected with the top surface of the radiator (8);

the driving unit plate (1) is arranged above the shielding pressing plate (3) and the power assembly (2), two sides of the driving unit plate (1) are respectively and fixedly connected with root connecting columns (61) on the two sets of output supports (6), and the driving unit plate (1) is electrically connected with signal pins of the power assembly (2).

2. The integrated dual-drive system control device according to claim 1, wherein the power module (2) comprises an upper tube IGBT (22) and a lower tube IGBT (23) which have the same structure, the upper tube IGBT (22) and the lower tube IGBT (23) are arranged on the insulating plate (21) in a mutually reverse side-by-side manner, copper bars on the same side row on one side of the upper tube IGBT (22) and the lower tube IGBT (23) are electrical input ends of the power module (2), and copper bars on the other side of the upper tube IGBT and the lower tube IGBT are electrical output ends (24) of the power module (2).

3. The integrated dual-drive system control device according to claim 1, wherein the copper bar support legs (71) of the thin film capacitors (7) comprise four rows of copper bars stacked side by side, and the copper bars are electrically isolated from each other by insulating paper.

4. The integrated dual-drive system control device according to claim 1, wherein the radiator (8) comprises an upper heat dissipation plate (81) and a lower heat dissipation plate (82) which are arranged in an upper-lower structure, a first cooling channel (811) and a second cooling channel (813) which are symmetrical are arranged on a lower surface of the upper heat dissipation plate (81), a first water inlet (814) and a first water outlet (815) are respectively arranged at two ends of the first cooling channel (811), a second water inlet (816) and a second water outlet (817) are respectively arranged at two ends of the second cooling channel (813), and the first water outlet (815) and the second water inlet (816) are communicated with each other.

5. An integrated dual drive system control device according to claim 4, wherein the upper surface of the lower heat dissipation plate (82) is provided with a first connecting passage (821), a second connecting passage (823), a third connecting passage (826), a third water outlet (824) and a third water inlet (825); two ends of the first connecting channel (821) are respectively communicated with the first water outlet (815) and the second water inlet (816); two ends of the second connecting channel (823) are respectively communicated with the second water outlet (817) and the third water outlet (824); both ends of the third connecting channel (826) are respectively communicated with the first water inlet (814) and the third water inlet (825).

6. The integrated dual-drive system control device according to claim 4, wherein the first cooling channel (811) and the second cooling channel (813) are both rectangular cavities, and oval heat dissipation pins are arranged in the cavities in a staggered manner.

7. An integrated dual drive system control device according to claim 1, wherein two concave arc-shaped ribs (31) are provided in the middle of the shielding pressure plate (3) for pressing the power module (2).

8. The integrated dual-drive system control device according to claim 1, wherein the power module (2) and the ac output copper plate (5) are fixedly connected by bolts.

9. An integrated dual drive system control device according to claim 1, wherein said power module (2) and ac output copper plate (5) are connected by laser welding.

10. An integrated dual drive system control device according to claim 1, wherein a plurality of fixed supporting points (85) are distributed on the outer ring of the heat sink (8), and can be connected with other elements through bolts.