TWM650056U - Vehicle control device with multifunctional modules combined - Google Patents

Abstract

The invention discloses a multifunctional module combined with a vehicle control device, which includes: a first circuit substrate, a charging module, a motor drive module and a water cooler. Opposite sides of the first circuit substrate are defined as the first side and the second side respectively; the charging module includes a first electronic component, the first electronic component is disposed on the first side of the first circuit substrate, and the first electronic component has a first heat dissipation surface; the motor drive module includes a second electronic component, the second electronic component is disposed on the first side of the first circuit substrate, the second electronic component has a second heat dissipation surface; the water cooler is disposed on the first circuit substrate The first side of the water cooler is against the first heat dissipation surface and the second heat dissipation surface to dissipate heat from the first electronic component and the second electronic component. The charging module and the motor driving module are integrated on the first side of the first circuit substrate, and share a water cooler for heat dissipation.

Description

Multifunctional module combined with a vehicle control device

The invention relates to a control device, in particular, a multi-function module combined with a vehicle control device used in electric vehicles.

Currently, various control devices included in common electric vehicles or high-power devices are distributed in a distributed manner, and each is equipped with its own dedicated radiator. This kind of design requires a relatively large space and has the disadvantage of high cost. If you want to integrate multiple control devices in a limited space, it is easy to cause poor heat dissipation.

This invention discloses a multifunctional module combined with a vehicle control device, which is mainly used to improve conventional electric vehicles or high-power devices. In conventional electric vehicles or high-power devices, the charging module and the motor drive module are completely independent designs. For this reason, they need to occupy a relatively large area. Large space, and there is also the problem of poor heat dissipation.

One embodiment of the present invention discloses a multifunctional module combined with a vehicle control device, which includes: a first circuit substrate, a charging module, a motor drive module and a water cooler. Opposite sides of the first circuit substrate are defined as a first side and a second side respectively; the charging module includes a first electronic component, the first electronic component is disposed on the first side of the first circuit substrate, and the first The electronic component has a first heat dissipation surface; the motor drive module includes a second electronic component, the second electronic component is disposed on the first side of the first circuit substrate, the second electronic component has a second heat dissipation surface; the water cooler is disposed on The first side of the first circuit substrate, and the water cooler is against the first heat dissipation surface and the second heat dissipation surface, and the water cooler is used to dissipate heat from the first electronic component and the second electronic component. The charging module and the motor driving module are integrated on the first side of the first circuit substrate, and share a water cooler for heat dissipation.

To sum up, the multi-function module combined with a vehicle control device of this invention can effectively improve the habit through the design of the first circuit substrate, charging module, motor drive module and water cooler. In known electric vehicles, the charging module and motor drive module need to occupy a relatively large space and suffer from poor heat dissipation.

In order to further understand the characteristics and technical content of this creation, please refer to the following detailed description and drawings about this creation. However, these descriptions and drawings are only used to illustrate this creation and do not make any reference to the scope of protection of this creation. limit.

100: Multifunctional module combined with a vehicle control device

1: First circuit substrate

11: First side

12: Second side

13:The first area

14:Second District

15:First connection port

16:Circuit routing

2:Charging module

21:First electronic components

211: First heat dissipation surface

22: Capacitor

3: Motor drive module

31: Second electronic component

311: Second heat dissipation surface

32: Capacitor

34: Hall sensor

4:Water cooler

5:Control circuit board

51: Second port

52:Controller

6: DC conversion components

7: Vehicle compressor driving components

8: Auxiliary conductive sheet body

9: Connected conductive structures

200:Transformer

300: Capacitor

400:Inductor

500: Auxiliary circuit substrate

600: Second circuit substrate

601:Third electronic components

A: Motor

B:Body

B1: Bottom

B2: Top surface

B3: Thermal conductive structure

B4:Trench

C:pin

S: gap

Figure 1 is a schematic diagram of a first embodiment of a multi-function module combined with a vehicle control device of the present invention.

FIG. 2 is a top view of FIG. 1 .

Figure 3 is a partially exploded schematic diagram of the first embodiment of the multi-function module combined with a vehicle control device of the present invention.

Figure 4 is another partially exploded schematic diagram of the first embodiment of the multi-function module combined with a vehicle control device of the present invention.

Figures 5 and 6 are respectively side views from different perspectives of the first embodiment of the multi-function module combined with a vehicle control device of the present invention.

FIG. 7 is a schematic diagram of the first electronic component and the second electronic component of the second embodiment of the multifunctional module-in-vehicle control device of the present invention.

Figure 8 is another partially exploded schematic diagram of the second embodiment of the multifunctional module combined with a vehicle control device of the present invention.

Figures 9 and 10 are side views from different perspectives of the second embodiment of the multifunctional module-in-vehicle control device of the present invention.

11 and 12 are schematic diagrams of the first electronic component and the second electronic component corresponding to different viewing angles of one embodiment of the multi-function module combined with a vehicle control device of the present invention.

Figure 13 is a partially exploded schematic diagram of one embodiment of the multi-function module combined with a vehicle control device of the present invention.

In the following description, if it is pointed out that please refer to a specific diagram or as shown in a specific diagram, it is only used to emphasize in the subsequent explanations, and most of the relevant content appears in the specific diagram, but it is not limiting. In the description that follows, only specific drawings may be referenced.

Please refer to Figures 1 to 5 together. Figure 1 is a schematic diagram of the first embodiment of the multi-function module combined with a vehicle control device of the present invention. Figure 2 is a top view of Figure 1. Figure 3 is a multi-functional module of the present invention. Figure 4 is another partially exploded schematic view of the first embodiment of the multifunctional module combined with a vehicle control device. Figures 5 and 6 are respectively. Side views from different angles of the first embodiment of the multifunctional module combination vehicle control device of the present invention.

The multifunctional module combined vehicle control device 100 of the present invention includes a first circuit substrate 1, a charging module 2, a motor driving module 3 and a water cooler 4. The multifunctional module combined with a vehicle control device 100 of the invention is suitable for use in an electric vehicle. The electric vehicle includes a rechargeable battery pack and a motor A. The first circuit substrate 1 is a circuit board, and the charging module 2 is used to connect to the rechargeable battery pack, and the charging module 2 is used to convert the external power supply into the current and voltage required by the rechargeable battery. The motor drive module 3 is used to connect to the motor A and the rechargeable battery pack, and the motor drive module 3 is used to convert the power provided by the rechargeable battery pack into the voltage and current required for the operation of the motor A. The water cooler 4 can be, for example, various common water cooling plates, water cooling radiators, etc., which are not limited thereto.

Referring to FIG. 3 , two opposite sides of the first circuit substrate 1 are respectively defined as a first side 11 and a second side 12 . The charging module 2 includes a plurality of first electronic components 21 . At least one of the plurality of first electronic components 21 is disposed on the first side 11 of the first circuit substrate 1 . The first electronic component 21 has a first heat dissipation surface 211 . The first electronic component 21 is a component that generates a large amount of heat energy when the charging module 2 is operating (that is, when the external power source charges the rechargeable battery through the charging module 2). For example, the first electronic component 21 is a power factor corrector. Controller (Power Factor Correction, PFC), full Bridge conversion components (F-bridge, D-bridge), etc., but are not limited to this. In one embodiment, the charging module 2 may be an on-board battery charger (OBC).

It should be noted that in FIG. 3 of this embodiment, three first electronic components 21 (such as FPC, F-bridge, and D-bridge) included in the charging module 2 are disposed on the first circuit substrate 1 The first side 11 is taken as an example, but the number of the first electronic components 21 of the charging module 2 disposed on the first side 11 of the first circuit substrate 1 is not limited to this. In practical applications, the number of first electronic components 21 disposed on the first side 11 of the first circuit substrate 1 may be increased or decreased based on the size, circuit layout, and other designs of the first circuit substrate 1 .

In FIG. 3 , the motor drive module 3 includes three power units. Each power unit is composed of two second electronic components 31 . At least one of these second electronic components 31 is disposed on the first circuit substrate 1 . On the first side 11 , the second electronic component 31 has a second heat dissipation surface 311 . The second electronic component 31 is a component that generates a large amount of heat energy when the motor driving module 3 is operating (for example, when the rechargeable battery provides power to the motor A to run the motor A). For example, the second electronic component 31 is Various switching elements (such as power chips), etc., but are not limited thereto. In addition, in this embodiment, each power unit is composed of two second electronic components 31. The two second electronic components 31 are connected in parallel to facilitate providing a larger driving current to drive the motor. However, regarding the second electronic components 31 connection method, but the above description is limited. According to actual needs, each power unit can also be equipped with a single second electronic component 31 or a larger number of second electronic components 31 . Furthermore, these second electronic components 31 connected in parallel may be electronic components with the same specifications (such as the same output current), or they may be electronic components with different specifications. The driving current generated by the power unit is transmitted outward from the second side 12 of the first circuit substrate 1 through a metal insert. In one embodiment, the motor driving module 3 may be an inverter (traction inverter).

It should be noted that in this embodiment, it is taken as an example that the six second electronic components 31 (for example, six switch units) included in the motor drive module 3 are disposed on the first side 11 of the first circuit substrate 1 , but the motor drive module 3 is disposed on the second electronic component 31 on the first side 11 of the first circuit substrate 1 The quantity is not limited to this. In practical applications, the number of second electronic components 31 disposed on the first side 11 of the first circuit substrate 1 may be increased or decreased based on the size, circuit wiring, and other designs of the first circuit substrate 1 .

In practical applications, as shown in Figure 1, at least one of the plurality of capacitors 22, 32, inductors, and sensing elements included in the charging module 2 and the motor drive module 3 respectively can be disposed in the first circuit. Second side 12 of substrate 1 . These capacitors 22 and 32 can be electrically connected to the first electronic component 21 or the second electronic component 31 on the first side 11 of the first circuit substrate 1 through metal inserts penetrating the first circuit substrate 1 . In one embodiment, some of the electronic components of the charging module 2 and the motor driving module 3 may also be provided on another auxiliary circuit substrate 500 included in the vehicle control device 100 of the multifunctional module assembly. The auxiliary circuit substrate 500 may also be provided with a transformer 200, a capacitor 300, an inductor 400, etc., for example.

In one embodiment, as shown in FIG. 1 , the motor driving module 3 may further include a Hall sensor 34 . The Hall sensor 34 is provided on the second side 12 and has a plurality of through holes. The connection line between the motor drive module 3 and the motor is passed through the through hole. When the motor drive module 3 generates current and flows through the connecting wire, a magnetic field will be generated around the connecting wire. The Hall sensor 34 is used to detect changes in the magnetic field to generate corresponding signals, and the relevant processor connected to the Hall sensor 34 can confirm the rotation state of the motor based on these signals.

As shown in FIGS. 3 to 4 , in one specific embodiment, the second side 12 of the first circuit substrate 1 may have a first region 13 and a second region 14 , and the first electronic component 21 and the second The electronic component 31 is disposed on the first side 11 of the first circuit substrate 1 at a position corresponding to the first area 13 . The capacitors 22 and 32 included in the charging module 2 and the motor driving module 3 respectively may be disposed in the first area 13 . In one embodiment, the driving circuit included in the motor driving module 3 may be disposed in the second region 14 .

In one embodiment, the multifunctional module combined with a vehicle control device 100 further includes a control circuit board 5 . The control circuit board 5 may be correspondingly arranged in the second area 14 and installed on the District 2 14 on. Preferably, the thickness of the first circuit substrate 1 may be greater than the thickness of the control circuit board 5 to ensure the overall structural strength of the multi-function module combined with the vehicle control device 100.

The controller 52 (such as an MCU) included in the multi-function module combined with the vehicle control device 100 may, for example, be provided on the control circuit board 5 . In one embodiment, the second side 12 of the first circuit substrate 1 may also be provided with a plurality of first connection ports 15, and one side of the control circuit board 5 may be provided with a plurality of second connection ports 51. , and the control circuit board 5 can be connected to the plurality of first connection ports 15 through the plurality of second connection ports 51. With this design, the control circuit board 5 can be mounted on the second side 12 of the first circuit substrate 1, This can effectively reduce the overall length and overall width of the multifunctional module assembly vehicle control device 100, and also allow a gap to be formed between the control circuit board 5 and the first circuit substrate 1 to allow air to flow therethrough. , to assist in heat dissipation.

The water cooler 4 is disposed on the first side 11 of the first circuit substrate 1 , and the water cooler 4 faces one side of the first circuit substrate 1 and abuts against the first heat dissipation surface 211 and the second heat dissipation surface 311 , and the water cooler 4 Used to dissipate heat from the first electronic component 21 and the second electronic component 31 . In practical applications, in order to make each first electronic component 21 and each second electronic component 31 better abut against the water cooler 4, there may be between the first heat dissipation surface 211 and the water cooler 4, and between the second heat dissipation surface 311 and the water cooler 4. A thermal conductive structure is respectively provided between the water coolers 4. The thermal conductive structure may be, for example, heat dissipation glue.

The fixing method of the first circuit substrate 1 and the water cooler 4 can be designed according to actual needs. For example, multiple screw holes or screw holes can be provided on the first circuit substrate 1 and the water cooler 4 respectively. structure to cooperate with a plurality of screws to fix the first circuit substrate 1 and the water cooler 4 to each other, or the first circuit substrate 1 and the water cooler 4 can be clamped simultaneously by using relevant clamps and other mechanisms, or the first The circuit substrate 1 and the water cooler 4 can be respectively fixed on relevant brackets, and after the two are fixed, the water cooler 4 will correspondingly abut against the first electronic component 21 and the second electronic component 31 . In practical applications, the first circuit substrate 1 can be of relatively thick thickness, thereby ensuring that the first circuit substrate 1 has sufficient support strength so that the first circuit substrate 1 and the water cooler 4 can be fixed to each other. .

As shown in FIG. 3 , in one specific embodiment of this embodiment, the multifunctional module combined with a vehicle control device 100 may also include a DC conversion element 6 and a vehicle compressor driving element 7 . The DC conversion element 6 The vehicle compressor driving element 7 is disposed on the first side 11 of the first circuit substrate 1 , and the water cooler 4 abuts against the DC conversion element 6 and the vehicle compressor driving element 7 . The DC conversion element 6 is used to perform voltage/current conversion of DC (commonly known as a DC-DC converter), and the vehicle compressor driving element 7 is used to control/drive the relevant air compressor (air compressor) on the electric vehicle. ) component. By arranging the DC conversion element 6 and the vehicle compressor driving element 7 on the first side 11 of the first circuit substrate 1 and making them abut against the water cooler 4, the multi-function module can be further integrated into a vehicle control system. When the device 100 is operating, it has better heat dissipation effect.

As shown in FIGS. 5 and 6 , the first electronic component 21 and the second electronic component 31 are located between the water cooler 4 and the first circuit substrate 1 . The first heat dissipation surface 211 of the first electronic component 21 and the first circuit substrate 1 The height between the second heat dissipation surface 311 of the second electronic component 31 and the first circuit substrate 1 is defined as a second height. In a preferred application, the second height is The difference between one height shall not exceed 10% of the first height.

As mentioned above, the multifunctional module combined with a vehicle control device 100 of the present invention integrates most of the electronic components included in the charging module 2 and the motor driving module 3 respectively on the same first circuit substrate 1, and The first electronic component 21 included in the charging module 2 and the second electronic component 31 included in the motor drive module 3 are disposed on the first side 11 of the first circuit substrate 1, and the first electronic component 21 and the second electronic component 31 are arranged on the first side 11 of the first circuit substrate 1. The two electronic components 31 are against the water cooler 4. This design can not only effectively reduce the overall size of the multi-function module assembly and a vehicle control device 100, but also effectively improve the heat dissipation of the multi-function module assembly and a vehicle control device 100. Effect.

It is worth mentioning that in practical applications, the size of the water cooler 4 is approximately the same as that of the first circuit substrate 1, and the first electronic component 21 and the second electronic component 31 are disposed on the first side 11 of the first circuit substrate 1. Basically, it can be against the water cooler 4, but it is not limited to this. As long as the first electronic component 21 and the second electronic component 31 can abut the water cooler 4, and the size and appearance of the water cooler 4 can be changed according to needs.

In the existing technology, the charging module and the motor drive module included in electric vehicles are usually manufactured by different manufacturers. The two modules have independent circuit boards. Therefore, the electric vehicle manufacturer must use two sets of fans. , to dissipate heat of the charging module and motor drive module respectively. For this reason, the charging module and the motor drive module must occupy a lot of space, and this design must also make additional designs for the placement positions of the two sets of fans. Otherwise, the charging module and the motor drive module will generate Thermal energy may not be efficiently discharged.

Please refer to FIGS. 7 to 10 together. FIG. 7 is a schematic diagram of the first electronic component and the second electronic component of the second embodiment of the multi-function module combined with a vehicle control device of the present invention. FIG. 8 is a schematic diagram of the multi-function module of the present invention. Another partially exploded schematic diagram of a second embodiment of a functional module combined with a vehicle control device. Figures 9 and 10 are side views from different angles of the second embodiment of a multifunctional module combined with a vehicle control device.

As shown in FIGS. 7 to 9 , one of the differences between this embodiment and the previous embodiment is that the first electronic component 21 and the second electronic component 31 may include a body B and a plurality of pins C respectively. Each pin C extends outward from the body B facing a bottom surface B1 of the first circuit substrate 1, and the position where each pin C is connected to the body B is not located on the side of the body B. In addition, according to actual needs, the configuration (such as number and location) of the pins C located on both sides of the body B can be different. The first electronic component 21 and the second electronic component 31 are respectively fixed to the first circuit substrate 1 through a plurality of pins C, and a gap S is formed between the body B and the first circuit substrate 1 (as shown in Figure 9 ). For example, the first electronic component 21 and the second electronic component 31 can be disposed on the first circuit substrate 1 through surface mount technology (SMT) or dual in-line packaging (DIP). Preferably, the gap S can be between 1 and 5 millimeters (mm). As shown in FIG. 10 , a part of the circuit traces 16 included in the first circuit substrate 1 may be correspondingly located in the gap S. Through the above design, when the first electronic component 21 and the second electronic component 31 are operating, the surrounding air can also flow in the gap S to assist in heat dissipation.

Preferably, the top surface B2 of the body B (ie, the aforementioned first heat dissipation surface and the second heat dissipation surface) may also have a thermal conductive structure B3. In practical applications, the thermal conductive structure B3 is formed on a metal layer on the top surface B2 of the body B by electroplating, coating, or other methods. Through the design of the heat conduction structure B3, when the water cooler 4 is against the first heat dissipation surface and the second heat dissipation surface of the first electronic component 21 and the second electronic component 31, the heat conduction structure B3 will be in contact with the water cooler 4, so , the heat energy generated by the operation of the first electronic component 21 and the second electronic component 31 can be better transferred to the water cooler 4 through the thermal conductive structure B3. The formation method, appearance and area occupied by the thermal conductive structure B3 can be changed according to the needs, and are not limited to those shown in the figure.

It should be noted that in practical applications, all electronic components disposed on the first side 11 of the first circuit substrate 1 may be designed with the above-mentioned body B, multiple pins C and thermal conductive structure B3, that is to say , the aforementioned DC conversion element 6 and vehicle compressor driving element 7 can also include a body B, a plurality of pins C and a thermal conductive structure B3.

As shown in Figures 2, 4, 8 to 10, in practical applications, the first circuit substrate 1 has a soldering area on part of the circuit traces 16 on the first side 11. The soldering area can also be provided with a soldering area. The thickness of the auxiliary conductive sheet 8 is smaller than the gap S, and some sections of the auxiliary conductive sheet 8 are correspondingly located in the gap S.

Specifically, the two auxiliary conductive sheets 8 may be disposed in the gap S between the second electronic component 31 and the first circuit substrate 1 , and one end of the two auxiliary conductive sheets 8 may protrude from the first circuit board 1 . On one side of a circuit substrate 1, two auxiliary conductive sheets 8 protrude from one end of the first circuit substrate 1 and are used to connect to the rechargeable battery. Some pins C of each second electronic component 31 are provided with The circuit traces 16 of the auxiliary conductive sheet 8 are connected. Through the arrangement of the auxiliary conductive sheet 8, the connection between the rechargeable battery and the circuit traces 16 on the first circuit substrate 1 can be facilitated, and the impedance can also be reduced.

Some of the pins C included in the three second electronic components 31 are also connected to the three connected conductive structures 9 on the second side 12 of the first circuit substrate 1 , and the three connected conductive structures 9 It is used to connect to the three-phase line of motor A. Through the design of the gap S, the first side 11 of the first circuit substrate 1 can be located, and the circuit traces 16 used to connect the three connected conductive structures 9 can be disposed in the gap, thereby allowing the third The space of the circuit substrate 1 is utilized more effectively, thereby reducing the overall volume of the multifunctional module assembly and the vehicle control device 100 .

Please refer to FIG. 11 and FIG. 12 together, which are schematic diagrams of the first electronic component and the second electronic component corresponding to different viewing angles of one embodiment of the multi-function module combined with a vehicle control device of the present invention. The top surface B2 of the body B serves as a heat dissipation surface (ie, the first heat dissipation surface of the first electronic component or the second heat dissipation surface of the second electronic component), and the thermal conductive structure B3 is correspondingly provided on the heat dissipation surface.

The biggest difference between this embodiment and the previous embodiment is that the body B included in the first electronic component 21 and the second electronic component 31 may also include two grooves B4, and each groove B4 is adjacent to the heat dissipation surface. The two grooves B4 are formed by the concave side of the body B where the thermal conductive structure B3 is provided, and each groove B4 is adjacent to a plurality of pins C located in the same row. Through the design of two grooves B4, the creepage distance (Creepage) from each pin C to the thermal conductive structure B3 can be increased to meet the insulation effect between pin C and the thermal conductive structure B3 (usually a conductor) and the external water cooler. . The depth, width, size, etc. of each trench B4 are not limited to those shown in the figure. In actual applications, they can be changed according to requirements.

It should be noted that in the drawings of this embodiment, each pin C is formed by extending outward and downward from one side of the body, and there is a horizontal section at the end of the pin C for connecting to the first circuit. The substrate, but the arrangement of the pins C and the body B is not limited to this. In one variation of this embodiment, the arrangement of the pins C and the body B can also be as shown in Figure 7 (i.e. , pin C extends outward from the bottom surface B1 of body B). The pin C of this embodiment is designed to be installed using surface mount technology (SMT). However, this case is not limited to this.

Please refer to FIG. 13 , which is a partially exploded schematic diagram of one embodiment of the multi-function module combined with a vehicle control device of the present invention. The biggest difference between this embodiment and the previous embodiment is that The multifunctional module combined vehicle control device 100 may further include a second circuit substrate 600 , and the second circuit substrate 600 and the first circuit substrate 1 are disposed on the same side of the water cooler 4 .

In practical applications, the vertical distance between the second circuit substrate 600 and the water cooler 4 may be the same as or different from the vertical distance between the first circuit substrate 1 and the water cooler 4 . On the side of the second circuit substrate 600 facing the water cooler 4, two third electronic components 601 are provided. For example, the two third electronic components 601 may be a DC conversion component and a vehicle compressor driving component. The type and quantity of the third electronic components 601 provided on the second circuit substrate 600 are not limited to the figures or the above description.

In practical applications, the second circuit substrate 600 may be detachably or non-detachably disposed on one side of the water cooler 4 through screws, nuts and other related fasteners, and the connection between the second circuit substrate 600 and the water cooler 4 There is a gap between them, and the gap is used to accommodate the third electronic component 601 provided on the second circuit substrate 600 .

It should be noted that the first circuit substrate 1 and the second circuit substrate 600 included in the multi-function module combined with a vehicle control device 100 may be electrically connected to each other through relevant electrical connectors, cables and other components. , but not limited to this.

By integrating the multifunctional module into a vehicle control device 100 including the first circuit substrate 1 and the second circuit substrate 600 , the relevant personnel can design the first electronic component 21 and the second electronic component 31 according to the number, size, volume and height, and the number, size, volume and height of the third electronic component 601, etc., design the corresponding dimensions of the first circuit substrate 1 and the second circuit substrate 600, and the vertical distance between the first circuit substrate 1 and the water cooler 4 , the vertical distance between the second circuit substrate 600 and the water cooler 4, the thickness of the first circuit substrate 1, the thickness of the second circuit substrate 600, etc., thereby allowing the first electronic component 21, the second electronic component 31 and The third electronic component 601 obtains the best heat dissipation effect.

For example, assuming that each first electronic component 21 (or each second electronic component 31) and each third electronic component 601 are disposed behind the first circuit substrate 1, the first electronic component 21 (or each second electronic component 31) The top surface of the second electronic component 31) and the top surface of the third electronic component 601 are respectively at different heights from the first circuit substrate 1. If the first electronic component 21 (or each second electronic component 31) and the third When the electronic component 601 is disposed on one side of the same first circuit substrate 1 , it may happen that only one of the first electronic component 21 (or each second electronic component 31 ) and the third electronic component 601 can be attached to the water cooler 4 , for this reason, electronic components that cannot be attached to the water cooler 4 will not be able to obtain a better heat dissipation effect compared to electronic components that can be attached to the water cooler 4 .

In contrast, the multi-function module combined with a vehicle control device 100 of this embodiment allows relevant technicians to make electronic components (first electronic components) of approximately the same height according to actual needs through the design of the second circuit substrate 600 . The component 21 and the second electronic component 31) are mounted on the first circuit substrate 1, and the other third electronic component 601 is disposed on the second circuit substrate 600, whereby the first electronic component 21 and the second electronic component can be 31 and the third electronic component 601 can basically be in contact with the water cooler 4, thereby achieving good heat dissipation effect.

In addition, through the design of the second circuit substrate 600, relevant personnel can reduce the size of the first circuit substrate 1, and the deformation amount of the first circuit substrate 1 will also be relatively small. The design of the second circuit substrate 600 can also facilitate air flow through the gap between the first circuit substrate 1 or the second circuit substrate 600 and the water cooler 4, thereby further improving the heat dissipation effect.

To sum up, the multifunctional module combined with a vehicle control device of this invention can integrate multiple control devices (such as charging module and motor drive module) and allow these control devices to share a water cooler. With this design, Effectively reducing the overall volume and size, the multifunctional module of the present invention is combined with a vehicle control device to dispose the first electronic component and the second electronic component on the same side of the circuit substrate, so that the first heat dissipation surface of the first electronic component Designs such as the second heat dissipation surface of the second electronic component against the water cooler can effectively improve the overall heat dissipation effect. The multifunctional module integrated control device of this invention is not only suitable for electric vehicles, but also can be used in general high-power devices to achieve effective centralized heat dissipation.

The above are only the best possible embodiments of this invention, and do not limit the patent scope of this invention. Therefore, all equivalent technical changes made by using the contents of the description and drawings of this invention are included in the protection scope of this invention.

100: Multifunctional module combined with a vehicle control device

1: First circuit substrate

11: First side

12: Second side

15:First connection port

21:First electronic components

211: First heat dissipation surface

22: Capacitor

2:Charging module

31: Second electronic component

311: Second heat dissipation surface

4:Water cooler

5:Control circuit board

51: Second port

6: DC conversion components

7: Vehicle compressor driving components

8: Auxiliary conductive sheet body

Claims (15)

A multifunctional module combined with a vehicle control device includes: A first circuit substrate, the two opposite sides of which are respectively defined as a first side and a second side; A charging module, which includes a first electronic component, the first electronic component is disposed on the first side of the first circuit substrate, and the first electronic component has a first heat dissipation surface; A motor drive module including a second electronic component disposed on the first side of the first circuit substrate, the second electronic component having a second heat dissipation surface; and A water cooler, which is disposed on the first side of the first circuit substrate and is against the first heat dissipation surface and the second heat dissipation surface. The water cooler is used to cool the first electronic component and the second heat dissipation surface. The second electronic component dissipates heat; Wherein, the charging module and the motor driving module are integrated on the first side of the first circuit substrate, and share the water cooler for heat dissipation. The multifunctional module combined with a vehicle control device according to claim 1, wherein the first electronic component and the second electronic component are located between the water cooler and the first circuit substrate; The height between a heat dissipation surface and the first circuit substrate is defined as a first height, the height between the second heat dissipation surface and the first circuit substrate is defined as a second height, and the second height The difference from the first height does not exceed 10% of the first height. The multifunctional module combined with a vehicle control device as claimed in claim 1, wherein the multifunctional module combined with a vehicle control device further includes a DC conversion element and a vehicle compressor driving element, and the DC conversion element And the vehicle compressor driving element is disposed on the first side of the first circuit substrate, and the water cooler is against the DC conversion element and the vehicle compressor driving element. The multifunctional module combined with a vehicle control device according to claim 1, wherein at least one of the capacitor, the inductor, and the sensing element included in the charging module and the motor drive module is disposed on the the second side of the first circuit substrate. The multifunctional module combined with a vehicle control device according to claim 1, wherein the first heat dissipation surface is provided with a thermal conductive structure, and the first electronic component contacts the water cooler through the thermal conductive structure; The thermally conductive structure is thermally conductive colloid or a metal layer formed on the first electronic component. The multifunctional module combined with a vehicle control device according to claim 1, wherein the second heat dissipation surface is provided with a thermal conductive structure, and the second electronic component contacts the water cooler through the thermal conductive structure; The thermally conductive structure is thermally conductive colloid or a metal layer formed on the second electronic component. The multifunctional module combined with a vehicle control device according to claim 1, wherein the first electronic component and the second electronic component respectively include a body and a plurality of pins, and the body passes through a plurality of the The pins are fixed on the first side of the first circuit substrate, and a gap is formed between the body and the first circuit substrate; the gap is between 1 and 5 mm. The multifunctional module combined with a vehicle control device according to claim 7, wherein each of the pins extends outward from a bottom surface of the body facing the first circuit substrate. The multifunctional module combined with a vehicle control device according to claim 8, wherein the first circuit substrate is provided with an auxiliary conductive sheet in a partial section of the plurality of circuit traces on the first side, and the The thickness of the auxiliary conductive sheet is smaller than the gap, and some sections of the auxiliary conductive sheet are correspondingly located in the gap. The multifunctional module combined with a vehicle control device according to claim 7, wherein the body further includes a heat dissipation surface and a plurality of grooves, and each of the grooves is located at an edge of the heat dissipation surface. The multifunctional module combined with a vehicle control device according to claim 1, wherein the second side of the first circuit substrate has a first area and a second area, and the first electronic component and the The second electronic component is disposed on the first side of the first circuit substrate at a position corresponding to the first area, and the capacitors included in the charging module and the motor drive module are disposed on the third In the first area, the multi-function module is combined with a control circuit board of a vehicle control device and is arranged in the second area. The multifunctional module combined with a vehicle control device according to claim 1, wherein the second side of the first circuit substrate is provided with a plurality of first connection ports, and the multifunctional module combined with a vehicle control device The control device also includes a control circuit board. A plurality of second connection ports are provided on one side of the control circuit board. The control circuit board communicates with the plurality of first connection ports through the plurality of second connection ports. connection. The multifunctional module combined with a vehicle control device according to claim 12, wherein the thickness of the first circuit substrate is greater than the thickness of the control circuit board. The multifunctional module combined with a vehicle control device according to claim 1 further includes a second circuit substrate and at least a third electronic component, the second circuit substrate and the first circuit substrate are arranged on the water-cooled The third electronic component is disposed on the side of the second circuit substrate facing the water cooler, and the third electronic component is against the water cooler. The multifunctional module combined with a vehicle control device according to claim 14, wherein the vertical distance between the first circuit substrate and the water cooler is different from the vertical distance between the second circuit substrate and the water cooler. .

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