MULTIFUNCTIONAL VEHICLE CONTROL DEVICE

Abstract

MULTIFUNCTIONAL VEHICLE CONTROL DEVICE The present invention relates to a multifunctional vehicle control device (100), comprising a first circuit substrate (1), a charging module (2), a motor drive module and a water cooler (4). The first circuit substrate (1) has two opposite sides respectively defined as a first side (11) and a second side (12). The charging module (2) comprises a first electronic component (21) disposed on the first side (11) and having a first heat dissipation surface (211). The motor drive module comprises a second electronic component (31) disposed on the first side (11) and having a second heat dissipation surface (311). The water cooler (4) abuts against the first heat dissipation surface (211) and the second heat dissipation surface (311). Figure to be published with the abstract: Figure 3

Description

Title of the invention: MULTIFUNCTIONAL VEHICLE CONTROL DEVICE FIELD OF THE INVENTION

[0001] The present invention relates to a control device, and more particularly to a multifunctional vehicle control device applied to electric vehicles. BACKGROUND OF THE INVENTION

[0002] The various control devices included in conventional common types of electric vehicles or high-power devices are configured in a distributed manner, and each control device is equipped with its own dedicated heat sink. However, this type of design requires a relatively large space and has the disadvantage of high cost. If the control devices are integrated into a limited space, it is easy to cause poor heat dissipation. Summary of the invention

[0003] The present invention relates to a multifunctional vehicle control device, which is mainly used to solve the problem that a charging module and a motor drive module of a conventional electric vehicle or a conventional high-power device are completely independent so that a relatively large space is occupied and the heat dissipation effect is poor.

[0004] The present invention relates to a multifunctional vehicle control device, which comprises a first circuit substrate, a charging module, a motor drive module and a water cooler. The first circuit substrate has two opposite sides which are respectively defined as a first side and a second side. The charging module comprises a first electronic component 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 comprises a second electronic component disposed on the first side of the first circuit substrate, and 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 abuts the first heat dissipation surface and the second heat dissipation surface, and the water cooler is configured to dissipate heat from the first electronic component and the second electronic component. The module. charging module and motor drive module are integrated on the first side of the first circuit substrate and share the water cooler for cooling.

[0005] According to an embodiment of the present invention, the first electronic component and the second electronic component are disposed between the water cooler and the first circuit substrate; a height between the first heat dissipation surface and the first circuit substrate being defined as a first height, a height between the second heat dissipation surface and the first circuit substrate being defined as a second height, and a difference between the second height and the first height not exceeding 10% of the first height.

[0006] According to one embodiment of the present invention, the multifunctional vehicle control device further comprises a direct current conversion element and a vehicle compressor drive element, the direct current conversion element and the vehicle compressor drive element being arranged on the first side of the first circuit substrate, and the water cooler abutting against the direct current conversion element and the vehicle compressor drive element.

[0007] According to one embodiment of the present invention, at least one of capacitors, inductors, and sensing elements included in any one of the charging module and the motor drive module is disposed on the second side of the first circuit substrate.

[0008] According to one embodiment of the present invention, the first heat dissipation surface comprises a heat conduction structure, and the first electronic component contacts the water cooler via the heat conduction structure; the heat conduction structure being a thermally conductive glue or a metal layer formed on the first electronic component.

[0009] According to one embodiment of the present invention, the second heat dissipation surface comprises a heat conduction structure, and the second electronic component contacts the water cooler via the heat conduction structure; the heat conduction structure being a thermally conductive glue or a metal layer formed on the second electronic component.

[0010] According to one embodiment of the present invention, each of the first electronic component and the second electronic component comprises a body and a plurality of contact pins, the body is fixed to the first side of the first circuit substrate via the plurality of contact pins, and a gap is formed between the body and the first circuit substrate; the gap being between 1 mm and 5 mm.

[0011] According to one embodiment of the present invention, each of the pins of contact extends outwardly from a lower surface of the body facing the first circuit substrate.

[0012] According to an embodiment of the present invention, a portion of a plurality of circuit traces on the first side of the first circuit substrate is provided with an auxiliary conductive sheet, a thickness of the auxiliary conductive sheet is smaller than the gap, and a portion of the auxiliary conductive sheet is correspondingly located in the gap.

[0013] According to one embodiment of the present invention, the body further comprises a heat dissipation surface and a plurality of grooves, and each of the grooves is located on an edge of the heat dissipation surface.

[0014] According to an embodiment of the present invention, the second side of the first circuit substrate has a first area and a second area, the first electronic component and the second electronic component are arranged on the first side of the first circuit substrate in correspondence with the position of the first area, capacitors respectively included in the charging module and the motor drive module are arranged in the first area, and the multifunctional vehicle control device further comprises a control circuit board arranged on the second area.

[0015] According to one embodiment of the present invention, the second side of the first circuit substrate is provided with a plurality of first connection ports, the multifunctional vehicle control device further comprises a control circuit board, one side of the control circuit board is provided with a plurality of second connection ports, and the control circuit board is connected to the first connection ports via the second connection ports, respectively.

[0016] According to one embodiment of the present invention, a thickness of the first circuit substrate is greater than a thickness of the control circuit board.

[0017] According to one embodiment of the present invention, the multifunctional vehicle control device further comprises a second circuit substrate and at least one third electronic component, the second circuit substrate and the first circuit substrate are arranged on a same side of the water cooler, the third electronic component is arranged on a side of the second circuit substrate facing the water cooler, and the third electronic component abuts against the water cooler.

[0018] According to one embodiment of the present invention, a vertical distance between the first circuit substrate and the water cooler is different from a vertical distance between the second circuit substrate and the water cooler.

[0019] Therefore, the present invention relates to a control device for multifunctional vehicle. By designing the first circuit substrate, the present invention can solve the problem of occupying a relatively large space and poor heat dissipation effect in the charging module and motor drive module of a conventional electric vehicle.

[0020] These and other aspects of the present invention will be better understood from the following description of the embodiment taken in conjunction with the accompanying drawings, although variations and modifications may be made therein without departing from the scope of the present invention. Brief description of the drawings

[0021] The described embodiments can be better understood by referring to the following description and the accompanying drawings in which:

[0022] [Fig. 1] is a schematic perspective view of a multifunctional vehicle control device according to a first embodiment of the present invention;

[0023] [Fig.2] is a schematic top view of the multifunctional vehicle control device according to the first embodiment of the present invention;

[0024] [Fig.3] is a partial schematic exploded view of the multifunctional vehicle control device according to the first embodiment of the present invention;

[0025] [Fig.4] is another partial schematic exploded view of the multifunctional vehicle control device according to the first embodiment of the present invention;

[0026] [Fig.5] is a side view of the multifunctional vehicle control device according to the first embodiment of the present invention;

[0027] [Fig.6] is another side view of the multifunctional vehicle control device according to the first embodiment of the present invention;

[0028] [Fig.7] is a schematic perspective view of a first electronic component and a second electronic component of the multifunctional vehicle control device according to a second embodiment of the present invention;

[0029] [Fig.8] is a schematic side view of the multifunctional vehicle control device according to the second embodiment of the present invention;

[0030] [Fig.9] is another schematic side view of the multifunctional vehicle control device according to the second embodiment of the present invention;

[0031] [Fig. 10] is a partial schematic exploded view of the multifunctional vehicle control device according to the second embodiment of the present invention;

[0032] [Fig. 11] is a schematic perspective view of the first electronic component and the second electronic component of the multifunctional vehicle control device according to one of the embodiments of the present invention;

[0033] [Fig. 12] is a schematic side view of the first electronic component and the second electronic component of the multifunctional vehicle control device according to one of the embodiments of the present invention; and

[0034] [Fig. 13] is a partial schematic exploded view of the multifunctional vehicle control device according to one of the embodiments of the present invention.

[0035] DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS

[0036] The present invention is more particularly described in the following examples, which are given for illustrative purposes only, since numerous modifications and variations will be obvious to those skilled in the art. Like reference numerals in the drawings indicate like components in the views.

[0037] Referring to Figures 1 to 6, [Fig.l] is a schematic perspective view of a multifunctional vehicle control device according to a first embodiment of the present invention, [Fig.2] is a schematic top view of the multifunctional vehicle control device according to the first embodiment of the present invention, [Fig.3] is a partial schematic exploded view of the multifunctional vehicle control device according to the first embodiment of the present invention, [Fig.4] is another partial schematic exploded view of the multifunctional vehicle control device according to the first embodiment of the present invention, [Fig.5] is a side view of the multifunctional vehicle control device according to the first embodiment of the present invention, and [Fig.6] is another side view of the multifunctional vehicle control device according to the first embodiment of the present invention.

[0038] The multifunctional vehicle control device 100 (having an integrated multifunctional module or a multifunctional module assembly) of the present invention comprises a first circuit substrate 1, a charging module 2, a motor drive module 3 and a water cooler 4. The multifunctional vehicle control device 100 of the present invention is suitable for application in an electric vehicle. The electric vehicle comprises a rechargeable battery pack and a motor A. The first circuit substrate 1 is a circuit board, and the charging module 2 is configured to be used for connecting to the rechargeable battery pack, and the charging module 2 is configured to be used for converting an external power supply into current and voltage which are required by the rechargeable battery pack.The motor drive module 3 is configured to be used to connect to the motor A and the rechargeable battery pack, and the . The motor drive module 3 is configured to be used to convert the power supplied by the rechargeable battery pack into current and voltage that are required for the operation of the motor A. The water cooler 4 may be, for example, various common water cooling plates, water cooling radiators, etc., but the present invention is not limited thereto.

[0039] Referring to [Fig. 3], the two opposite sides of the first circuit substrate 1 are respectively defined as the first side 11 and the second side 12. The charging module 2 comprises 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. When the charging module 2 is working (i.e., when the external power source charges the rechargeable battery via the charging module 2), the first electronic component 21 generates a large amount of heat energy. For example, the first electronic component 21 is a power factor corrector (PFC), a full-bridge conversion component (F-bridge, D-bridge), etc., but the present invention is not limited to these.In one embodiment, the charging module 2 may be an on-board battery charger (OBC).

[0040] It should be noted that in [Fig. 3] of this embodiment, three first electronic components 21 (such as PFC, F-bridge and D-bridge) of the charging module 2 arranged on the first side 11 of the first circuit substrate 1 are taken as an example, but the number of first electronic components 21 of the charging module 2 arranged 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 arranged on the first side 11 of the first circuit substrate 1 may be increased or decreased depending on the size and topology of the first circuit substrate 1.

[0041] As shown in [Fig. 3], the motor drive module 3 comprises three power units. Each power unit may be composed of two second electronic components 31. At least one of these second electronic components 31 is arranged on the first side 11 of the first circuit substrate 1, and the second electronic component 31 has a second heat dissipation surface 311. When the motor drive module 3 is operating (e.g., when the rechargeable battery powers the motor A to start it), the second electronic component 31 generates a large amount of heat energy. For example, the second electronic component 31 may be any type of switching elements (such as power chips), but the present invention is not limited thereto. Furthermore, in this embodiment, each power unit may be composed of two second electronic components 31. The two second electronic components 31 are connected in parallel to facilitate the distribution of a larger drive current for driving the motor A, but the method of connecting the second electronic components 31 is not limited to the above description. Depending on actual needs, each power unit may also have 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 having the same specifications (such as the same output current), or they may be electronic components having different specifications.The drive current generated by the power unit may be transmitted outwardly from the second side 12 of the first circuit substrate 1 via metal insertion pins. In one embodiment, the motor drive module 3 may be a traction inverter.

[0042] It should be noted that in this embodiment, six second electronic components 31 (such as six switching units) of the motor drive module 3 arranged on the first side 11 of the first circuit substrate 1 are taken as an example, but the number of second electronic components 31 arranged on the first side 11 of the first circuit substrate 1 of the motor drive module 3 is not limited to this. In practical applications, the number of second electronic components 31 arranged on the first side 11 of the first circuit substrate 1 may be increased or decreased depending on the size, circuit topology, or other different designs of the first circuit substrate 1.

[0043] In practical applications, as shown in [Fig.l], at least one of a plurality of capacitors 22, 32, inductors, and sensing elements included in the charging module 2 and the motor drive module 3, respectively, may be disposed on the second side 12 of the first circuit substrate 1. The capacitors 22 and 23 may 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 via the metal insertion pins passing through the first circuit substrate 1. In one embodiment, some of the electronic components of the charging module 2 and the motor drive module 3 may also be disposed on another auxiliary circuit substrate 500 included in the multifunctional vehicle control device 100.For example, the auxiliary circuit substrate 500 may also include a transformer 200, a capacitor 300, an inductor 400, and the like.

[0044] In one embodiment, as shown in [Fig.l], the drive module of motor 3 may also include a Hall effect sensor 34. The Hall effect sensor 34 is located on the second side 12 and has a plurality of through holes. A plurality of connection wires between the motor drive module 3 and the motor A may pass through the through holes, respectively. When the current generated by the motor drive module 3 flows through the connection wire, a magnetic field is generated around the connection wire. The Hall effect sensor 34 is configured to be used to detect changes in the magnetic field so as to generate corresponding signals, and the relevant processor connected to the Hall effect sensor 34 can confirm the rotation state of the motor A according to the corresponding signals generated by the Hall effect sensor 34.

[0045] As shown in Figures 3 and 4, in a specific embodiment, the second side 12 of the first circuit substrate 1 may have a first area 13 and a second area 14, 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 in correspondence with the position of the first area 13. The capacitors 22 and 32 included in the charging module 2 and the motor drive module 3, respectively, may be arranged on the first area 13. In one embodiment, the drive circuit included in the motor drive module 3 may be arranged on the second area 14.

[0046] In one embodiment, the multifunctional vehicle control device 100 further comprises a control circuit board 5. The control circuit board 5 may be arranged in correspondence with the second area 14 and installed on the second area 14. Preferably, the thickness of the first circuit substrate 1 may be greater than the thickness of the control circuit board 5 so as to ensure the overall structural strength of the multifunctional vehicle control device 100.

[0047] A control device 52 (such as an MCU) included in the multifunctional vehicle control device 100, for example, may be disposed on the control circuit board 5. In one embodiment, the second side 12 of the first circuit substrate 1 may also have a plurality of first connection ports 15, one side of the control circuit board 5 may have a plurality of second connection ports 51, and the control circuit board 5 may be connected to the plurality of first connection ports 15 via the plurality of second connection ports 51.By this design, the control circuit board 5 can be mounted at a predetermined height position on the second side 12 of the first circuit substrate 1, so as to effectively reduce the overall length and width of the multifunctional vehicle control device 100 and also enable the formation of a gap between the control circuit board 5. control 5 and the first circuit substrate 1 to allow air to flow through the gap to facilitate heat dissipation.

[0048] 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 is configured to be used for dissipating heat from the first electronic component 21 and the second electronic component 31. In practical applications, in order for each first electronic component 21 and each second electronic component 31 to better abut against the water cooler 4, two heat conduction structures (such as a heat dissipation glue) may be disposed 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.

[0049] The method for fixing the first circuit board 1 and the water cooler 4 can be designed according to actual needs. For example, a plurality of screw holes or a structure having a plurality of screw holes can be formed on the first circuit board 1 and the water cooler 4 to cooperate with a plurality of screws, so that the first circuit substrate 1 and the water cooler 4 are fixed to each other, or the first circuit substrate 1 and the water cooler 4 can be clamped together using a mechanism such as an associated clamp, or the first circuit board 1 and the water cooler 4 can be respectively fixed on the corresponding brackets. After fixing the first circuit board 1 and the water cooler 4, the water cooler 4 can correspondingly abut against the first electronic component 21 and the second electronic component 31.In practical applications, the first circuit substrate 1 may be selected with a relatively large thickness, thereby ensuring that the first circuit substrate 1 has sufficient supporting force to fix the first circuit substrate 1 and the water cooler 4 to each other.

[0050] As shown in [Fig. 3], in one of the specific embodiments of the present embodiment, the multifunctional vehicle control device 100 may also comprise a DC (direct current) conversion element 6 and a vehicle compressor drive element 7, the DC conversion element 6 and the vehicle compressor drive element 7 are arranged on the first side 11 of the first circuit board 1, and the water cooler 4 abuts against the DC conversion element 6 and the vehicle compressor drive element 7. The DC conversion element 6 is configured to be used for voltage and current conversion of direct current (such as a DC- DC), and the vehicle compressor drive element 7 is configured to be used to control or drive the corresponding air compressor on the electric vehicle. By placing the DC conversion element 6 and the vehicle compressor drive element 7 on the first side 11 of the first circuit board 1, and causing the DC conversion element 6 and the vehicle compressor drive element 7 to abut against the water cooler 4, the present invention can provide a better heat dissipation effect during operation of the multifunctional vehicle control device 100.

[0051] As shown in Figures 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 height between the first heat dissipation surface 211 of the first electronic component 21 and the first circuit substrate 1 is defined as a first height, and 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 difference between the second height and the first height should not exceed 10% of the first height.

[0052] According to the above, the multifunctional vehicle control device 100 of the present invention can integrate most of the electronic components contained in the charging module 2 and the motor drive module 3, respectively, on the same first circuit substrate 1, 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 arranged on the first side 11 of the first circuit substrate 1, and the first electronic component 21 and the second electronic component 31 abut against the water cooler 4. Therefore, the present invention can not only effectively reduce the overall size of the multifunctional vehicle control device 100, but also effectively improve the heat dissipation effect of the multifunctional vehicle control device 100.

[0053] It should be mentioned 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 21 arranged on the first side 11 of the first circuit substrate 1 can essentially abut against the water cooler 4, but the present invention is not limited to this. As long as the first electronic component 21 and the second electronic component 31 can abut against the water cooler 4, the size and shape of the water cooler 4 can be changed according to different requirements.

[0054] In the prior art, the charging module and the motor drive module included in the electric vehicle are generally manufactured by different manufacturers, and the charging module and the motor drive module have independent circuit boards. Therefore, the electric vehicle manufacturer must use two sets of fans to dissipate the heat generated by the charging module and the 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 provide additional designs for the placement positions of the two sets of fans. Otherwise, the heat generated by the charging module and the motor drive module may not be dissipated effectively.

[0055] Referring to Figures 7 to 10, [Fig. 7] is a schematic perspective view of a first electronic component and a second electronic component of the multifunctional vehicle control device according to a second embodiment of the present invention, [Fig. 8] is a schematic side view of the multifunctional vehicle control device according to the second embodiment of the present invention, [Fig. 9] is another schematic side view of the multifunctional vehicle control device according to the second embodiment of the present invention, and [Fig. 10] is a partial schematic exploded view of the multifunctional vehicle control device according to the second embodiment of the present invention.

[0056] As shown in Figures 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 respectively comprise a body B and a plurality of contact pins C. Each contact pin C extends outward from a bottom surface B1 of the body B facing the first circuit substrate 1, and the position at which each contact pin C is connected to the body B is not located on the side of the body B. Furthermore, according to actual requirements, the configuration (such as the quantity and position) of the contact pins C on the two sides of the body B may be different.The first electronic component 21 and the second electronic component 31 are respectively attached to the first circuit substrate 1 via the plurality of contact pins C, and a gap S is formed between the body B and the first circuit substrate 1 (as shown in [Fig. 9]). For example, the first electronic component 21 and the second electronic component 31 may be arranged on the first circuit substrate 1 via surface mount technology (SMT) or a dual-line package (DIP). Preferably, the gap S may be between 1 and 5 millimeters (mm). As shown in [Fig. 10], a portion of the circuit traces 16 included in the . first circuit substrate 1 can be correspondingly located in the space S. By the above design, when the first electronic component 21 and the second electronic component 31 are working, the surrounding air can also flow into the space S to facilitate heat dissipation.

[0057] Preferably, the upper surface B2 (i.e., the first heat dissipation surface and the second heat dissipation surface) of the body B may also have a heat conduction structure B3. In practical applications, the heat conduction structure B3 may be a thermally conductive glue or a metal layer formed on the upper surface B2 of the body B by electrodeposition, coating, and the like.By designing the heat conduction structure B3, when the water cooler 4 abuts 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 is in contact with the water cooler 4, so that the heat 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 via the heat conduction structure B3. The forming method and appearance of the heat conduction structure B3 and the area occupied by the heat conduction structure B3 can be changed according to different requirements, and they are not limited to those shown in the drawings.

[0058] It should be noted that, in practical applications, all the electronic components arranged on the first side 11 of the first circuit substrate 1 may be designed with the body B, the plurality of contact pins C and the heat conduction structure B3. In other words, the DC conversion element 6 and the vehicle compressor drive element 7 may also comprise the body B, the plurality of contact pins C and the heat conduction structure B3.

[0059] As shown in Figures 2, 4 and 8 to 10, in practical applications, some sections of the circuit traces 16 of the first side 11 of the first circuit substrate 1 have solder areas, and each solder area may also have an auxiliary conductive sheet 8. The thickness of the auxiliary conductive sheet 8 is less than the gap S, and some sections of the auxiliary conductive sheet 8 are correspondingly located in the gap S.

[0060] More specifically, two of the auxiliary conductive sheets 8 may be arranged in the space S between the second electronic component 31 and the first circuit substrate 1, and one end of each of the two auxiliary conductive sheets 8 may protrude from one side of the first circuit substrate 1 so as to connect to the rechargeable battery. Some contact pins C of each second electronic component 31 are connected to the circuit trace 16 having the auxiliary conductive sheet 8. The arrangement of the auxiliary conductive sheet 8 can facilitate the connection of the rechargeable battery to the circuit trace 16 on the first circuit substrate 1, and the impedance can also be reduced.

[0061] Some of the contact pins C included in the three second electronic components 31 are also connected to three conductive connection structures 9 arranged on the second side 12 of the first circuit substrate 1, and the three conductive connection structures 9 are configured to be used for connecting to the three-phase line of the motor A. By designing the space S, the first side 11 of the first circuit substrate 1 and the circuit traces 16 used for connecting the three conductive connection structures 9 can be arranged in the space S, thereby making more efficient use of the space of the circuit substrate 1 and reducing the overall volume of the multifunctional vehicle control device 100.

[0062] Referring to Figures 11 and 12, which are schematic views of the first electronic component and the second electronic component corresponding to different viewing angles in an embodiment of the multifunctional vehicle control device of the present invention, respectively, the upper surface B2 of the body B serves as a heat dissipation surface (i.e., the first heat dissipation surface of the first electronic component or the second heat dissipation surface of the second electronic component), and the heat conduction structure B3 is correspondingly arranged on the heat dissipation surface.

[0063] The main 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 comprise two grooves B4 (or two trenches), and each groove B4 is adjacent to the edge of the heat dissipation surface, two grooves B4 are respectively recessed from two sides of the heat conduction structure B3 of the body B, and each groove B4 is adjacent to the contact pins C which are located in the same row. By designing two grooves B4, the creepage distance between each contact pin C and the heat conduction structure B3 can be increased to ensure the insulation effect between the contact pin C and the heat conduction structure B3 (such as a conductor) and the external water cooler. The depth, width, size, etc., of each B4 groove are not limited to those shown in the drawings and, in actual applications, they can be changed according to different requirements.

[0064] It should be noted that, in the drawings of this embodiment, each contact pin C is formed by extending outward and downward from one side of the body B, and there is a horizontal section at the end of the contact pin C for connecting to the first circuit substrate, but the arrangement of the contact pins C and the body B is not limited to this. According to a variation of this embodiment, the arrangement of the contact pins C and the body B may also be as shown in [Fig. 7] (i.e., the contact pin C may extend outward from the bottom surface B1 of the body B). The contact pin C of this embodiment is designed to be installed using surface mount technology (SMT). However, the present invention is not limited to this.

[0065] Referring to [Fig. 13], which is a partial schematic exploded view of the multifunctional vehicle control device according to one of the embodiments of the present invention, the main difference between this embodiment and the previous embodiment is that the multifunctional vehicle control device 100 may also include a second circuit substrate 600, and the second circuit substrate 600 and the first circuit substrate 1 are arranged on the same side of the water cooler 4.

[0066] 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. The side of the second circuit substrate 600 facing the water cooler 4 has two third electronic components 601. For example, the two third electronic components 601 may be a DC conversion component and a vehicle compressor drive component. The type and quantity of the third electronic components 601 provided on the second circuit substrate 600 are not limited to those illustrated in the drawings or the above description.

[0067] In practical applications, the second circuit substrate 600 may be removably or non-removably disposed on one side of the water cooler 4 using screws, nuts, and other related fasteners, and the second circuit substrate 600 is connected to the water cooler 4. There is a gap between the second circuit substrate 600 and the water cooler 4, and the gap is used to accommodate the third electronic component 601 disposed on the second circuit substrate 600.

[0068] It should be noted that the first circuit substrate 1 and the second circuit substrate 600 included in the multifunctional vehicle control device 100 may be connected to each other via electrical connectors, cables or other relevant components, but the present invention is not limited thereto.

[0069] By integrating the multifunctional module into the vehicle control devicemultifunctional device 100 comprising the first circuit substrate 1 and the second circuit substrate 600, the relevant technicians can design the first electronic component 21 and the second electronic component 31 based on the number, size, volume and height of the first electronic component 21 and the second electronic component 31, as well as the number, size, volume and height of the third electronic component 601, etc., to design the corresponding sizes of the first circuit substrate 1 and the second circuit substrate 600, 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., so that the first electronic component 21, the second electronic component 31 and the third electronic component 601 can achieve better heat dissipation effect.

[0070] For example, assuming that each first electronic component 21 (or each second electronic component 31) and each third electronic component 601 are arranged on the first circuit substrate 1, the upper surface of the first electronic component 21 (or each second electronic component 31) and the upper surface of the third electronic component 601 are respectively at different heights relative to the first circuit substrate 1. If the first electronic component 21 (or each second electronic component 31) and the third electronic component 601 are arranged 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 cannot 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 achieve a better heat dissipation effect compared to electronic components that can be attached to the water cooler 4. .

[0071] In contrast, the multifunctional vehicle control device 100 of this embodiment allows the technicians concerned to mount the electronic components (i.e., the first electronic component 21 and the second electronic component 31) at approximately the same height on the first circuit substrate 1, and mount the other third electronic components 601 on one side of the second circuit substrate 600 facing the water cooler 4 according to different requirements, thereby allowing the first electronic component 21, the second electronic component 31, and the third electronic component 601 to be essentially in contact with the water cooler 4 to achieve a good heat dissipation effect.

[0072] Further, by designing the second circuit substrate 600, technicians concerned can reduce the size of the first circuit substrate 1, and the extent of deformation of the first circuit substrate 1 will also be relatively small. The design of the second circuit substrate 600 can also facilitate airflow 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.

[0073] In summary, the multifunctional vehicle control device of the present invention can integrate a variety of control devices (such as a charging module and a motor drive module) and enable these control devices to share a water cooler for cooling, so as to effectively reduce the overall volume and overall size. Furthermore, in the multifunctional vehicle control device of the present invention, the first electronic component and the second electronic component are arranged on the same side of the circuit substrate, such that the first heat dissipation surface of the first electronic component and the second heat dissipation surface of the second electronic component abut against the water cooler so as to effectively improve the overall heat dissipation effect.The multifunctional vehicle control device of the present invention is not only suitable for electric vehicles, but also can be used for general high-power devices to achieve efficient heat dissipation effect.

[0074] The foregoing description of exemplary embodiments of the invention has been presented solely for purposes of illustration and description and is not intended to be exhaustive or to limit the invention to the precise forms that have been disclosed. Numerous modifications and variations are possible in light of the above teaching, without departing from the scope of the present invention.

Claims

Claims

1. A multifunctional vehicle control device (100), characterized by comprising: a first circuit substrate (1) having two opposite sides which are respectively defined as a first side (11) and a second side (12); a charging module (2) comprising a first electronic component (21) disposed on the first side (11) of the first circuit substrate (1), and the first electronic component (21) having a first heat dissipation surface (211); a motor drive module (3) comprising a second electronic component (31) disposed on the first side (11) of the first circuit substrate (1), and the second electronic component (31) having a second heat dissipation surface (311);and a water cooler (4) provided on the first side (11) of the first circuit substrate (1) and abutting the first heat dissipation surface (211) and the second heat dissipation surface (311), and the water cooler (4) being configured to dissipate heat from the first electronic component (21) and the second electronic component (31); wherein the charging module (2) and the motor drive module (3) are integrated on the first side (11) of the first circuit substrate (1) and share the water cooler (4) for cooling.;

2. A multifunctional vehicle control device (100) according to claim 1, characterized in that the first electronic component (21) and the second electronic component (31) are arranged between the water cooler (4) and the first circuit substrate (1); wherein a height between the first heat dissipation surface (211) and the first circuit substrate (1) is defined as a first height, a height between the second heat dissipation surface (311) and the first circuit substrate (1) is defined as a second height, and a difference between the second height and the first height does not exceed 10% of the first height.

3. A multifunctional vehicle control device (100) according to claim 1, characterized in that it further comprises a direct current conversion element (6) and a vehicle compressor drive element (7), the direct current conversion element (6) and the vehicle compressor drive element (7) being arranged on the first side (11) of the first circuit substrate (1), and the water cooler (4) abutting against the direct current conversion element (6) and the vehicle compressor drive element (7).

4. A multifunctional vehicle control device (100) according to claim 1, characterized in that at least one of capacitors (22, 32), inductors and sensing elements included in any one of the charging module (2) and the motor drive module (3) is disposed on the second side (12) of the first circuit substrate (1).

5. A multifunctional vehicle control device (100) according to claim 1, characterized in that the first heat dissipation surface (211) comprises a heat conduction structure (B3), and the first electronic component (21) contacts the water cooler (4) via the heat conduction structure (B3); wherein the heat conduction structure (B3) is a heat conductive glue or a metal layer formed on the first electronic component (21).

6. A multifunctional vehicle control device (100) according to claim 1, characterized in that the second heat dissipation surface (311) comprises a heat conduction structure (B3), and the second electronic component (31) contacts the water cooler (4) via the heat conduction structure (B3); wherein the heat conduction structure (B3) is a heat conductive glue or a metal layer formed on the second electronic component (31).

7. A multifunctional vehicle control device (100) according to claim 1, characterized in that each of the first electronic component (21) and the second electronic component (31) comprises a body (B) and a plurality of contact pins (C), the body (B) is fixed to the first side (11) of the first circuit substrate (1) via the plurality of contact pins (C), and a gap (S) is formed between the body (B) and the first circuit substrate (1); wherein the gap (S) is between 1 mm and 5 mm.

8. A multifunctional vehicle control device (100) according to claim 7, characterized in that each of the contact pins (C) extends outwardly from a lower surface (Bl) of the body (B) facing the first circuit substrate (1).

9. A multifunctional vehicle control device (100) according to claim 8, characterized in that a portion of a plurality of circuit traces (16) of the first side (11) of the first circuit substrate (1) is provided with an auxiliary conductive sheet (8), a thickness of the auxiliary conductive sheet (8) is smaller than the gap (S), and a portion of the auxiliary conductive sheet (8) is correspondingly located in the gap (S).

10. A multifunctional vehicle control device (100) according to claim 7, characterized in that the body (B) further comprises a heat dissipation surface and a plurality of grooves (B4), and each of the grooves (B4) is located on an edge of the heat dissipation surface.

11. A multifunctional vehicle control device (100) according to claim 1, characterized in that the second side (12) of the first circuit substrate (1) has a first area (13) and a second area (14), the first electronic component (21) and the second electronic component (31) are arranged on the first side (11) of the first circuit substrate (1) in correspondence with the position of the first area (13), capacitors respectively included in the charging module (2) and the motor drive module (3) are arranged in the first area (13), and the multifunctional vehicle control device (100) further comprises a control circuit board (5) arranged on the second area (14).

12. A multifunctional vehicle control device (100) according to claim 1, characterized in that the second side (12) of the first circuit substrate (1) is provided with a plurality of first connection ports (15), the multifunctional vehicle control device (100) further comprises a control circuit board (5), one side of the control circuit board (5) is provided with a plurality of second connection ports (51), and the control circuit board (5) is connected to the first connection ports (15) via the second connection ports (51), respectively.

13. A multifunctional vehicle control device (100) according to claim 12, characterized in that a thickness of the first circuit substrate (1) is greater than a thickness of the control circuit board (5).

14. A multifunctional vehicle control device (100) according to claim 1, wherein the control device comprises a plurality of control elements (100) and a plurality of control elements (100). claim 1, characterized in that it further comprises a second circuit substrate (600) and at least one third electronic component (601), the second circuit substrate (600) and the first circuit substrate (1) are arranged on the same side of the water cooler (4), the third electronic component (601) is arranged on one side of the second circuit substrate (600) facing the water cooler (4), and the third electronic component (601) abuts against the water cooler (4).

15. A multifunctional vehicle control device (100) according to claim 14, characterized in that a vertical distance between the first circuit substrate (1) and the water cooler (4) is different from a vertical distance between the second circuit substrate (600) and the water cooler (4).

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