Vehicle-mounted module with cooling flow channel

Abstract

The embodiment of the invention discloses a vehicle-mounted module with a cooling flow channel. The vehicle-mounted module comprises a shell, the shell comprises an electronic device installation cavity, a cooling flow channel and a heat dissipation plane, and the electronic device installation cavity and the heat dissipation plane are located on the two side faces of the cooling flow channel respectively; the heat dissipation plane is used for installing a first core device; the electronic device mounting cavity is used for accommodating and mounting a second core device, and the cavity structure of the electronic device mounting cavity is matched with the second core device; the cooling flow channel comprises a cooling water tank and a cover plate, a cooling medium flows through the cooling water tank, and the cooling water tank is covered with the cover plate to form the heat dissipation plane. According to the embodiment of the invention, reliable installation of the core device is realized, and effective heat dissipation is provided for the core device.

Description

Technical Field

[0001] The present application relates to the technical field of automobile accessories, and in particular to a vehicle-mounted module with a cooling channel. Background Art

[0002] For new energy electric vehicles, the on-board charger (OBC) and DCDC converter are two indispensable components in the car. The former is used to replenish the on-board battery, and the latter is used to provide energy for the on-board low-voltage equipment.

[0003] In the current new energy electric vehicle architecture, OBC and DCDC converters are usually integrated in one housing to form a two-in-one vehicle-mounted component. The purpose of this is to reduce weight, volume and cost, and is more conducive to the integrated design of the vehicle assembly.

[0004] However, since OBC and DCDC converters provide different functions for automobiles, the electronic components and structural designs used in them are different accordingly. Therefore, after combining them into one, the shell needs to be adapted according to the internal device layout. In particular, due to the functional requirements of OBC and DCDC converters, a large number of power devices and magnetic devices, such as MOS tubes, inductors and transformers, are required. These core devices are not only large in size and weight, but also difficult to install. In addition, they generate a lot of heat during operation, which needs to be dissipated. However, it is difficult to design the installation structure and heat dissipation structure of these core devices, making it difficult to achieve the design goals of modularization and platformization. Summary of the invention

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a vehicle-mounted module with a cooling channel to achieve reliable installation of core components and provide effective heat dissipation for the core components.

[0006] The present application provides a vehicle-mounted module with a cooling channel, the vehicle-mounted module comprising: MAHLE internal (CL2)

[0007] A housing, the housing comprising an electronic device installation cavity, a cooling channel and a heat dissipation plane, wherein the electronic device installation cavity and the heat dissipation plane are respectively located on two sides of the cooling channel;

[0008] The heat dissipation plane is used to install the first core component;

[0009] The electronic device installation cavity is used to accommodate and install a second core device, and its cavity structure is adapted to the second core device;

[0010] The cooling channel includes a cooling water trough for cooling medium to flow and a cover plate. The cover plate covers the cooling water trough to form the heat dissipation plane.

[0011] In one embodiment of the above-mentioned vehicle-mounted module with cooling channel,

[0012] The cooling water trough is arranged in the shell and is integrally cast with the shell. The cooling water trough cooperates with the cover plate to form the cooling channel.

[0013] In one embodiment of the above-mentioned vehicle-mounted module with cooling channel,

[0014] The cooling water tank is provided with flow guiding ribs.

[0015] In one embodiment of the above-mentioned vehicle-mounted module with cooling channel,

[0016] The shell is provided with a water inlet and a water outlet, and the water inlet and the water outlet are respectively arranged at two ends of the cooling channel and communicated with the cooling channel.

[0017] In one embodiment of the above-mentioned vehicle-mounted module with cooling channel,

[0018] The electronic component installation cavity has at least two cavities arranged along the flow direction of the cooling medium, and each of the cavities is configured to install one of the second core components.

[0019] In one embodiment of the above-mentioned vehicle-mounted module with cooling channel,

[0020] The electronic component installation cavity is provided with positioning columns and supporting columns adapted to the installed second core component; the electronic component installation cavity and the shell are integrally die-cast.

[0021] In one embodiment of the above-mentioned vehicle-mounted module with cooling channel,

[0022] The first core component is mounted on the heat dissipation plane;

[0023] The second core component is installed in the electronic component installation cavity.

[0024] In one embodiment of the above-mentioned vehicle-mounted module with cooling channel,

[0025] The first core device is a power device; the second core device is a magnetic device. MAHLE internal (CL2)

[0026] In one embodiment of the above-mentioned vehicle-mounted module with cooling channel,

[0027] The first core component is fixed on the heat dissipation plane by gluing; the second core component is fixed in the electronic component installation cavity by heat-conductive potting glue.

[0028] In one embodiment of the above-mentioned vehicle-mounted module with cooling channel,

[0029] The shell is provided with a plurality of fixing holes and positioning holes adapted for the overall installation of the vehicle-mounted module.

[0030] One or more of the above embodiments of the present application have at least one or more of the following beneficial effects:

[0031] In the technical solution for implementing the present application, the vehicle-mounted module can concentrate the core electronic components with large volume and high heat generation together by arranging the heat dissipation plane and the electronic device installation cavity on both sides of the cooling channel respectively, and provide a mechanical structure for the installation and heat dissipation of the core components. The mechanical structure can provide heat dissipation for various types of core components on both sides at the same time through the heat exchange of the cooling medium through the cooling channel, and has the characteristics of modularization and platformization; the heat dissipation plane is easy to process, and provides effective heat dissipation for the core components that can be fixed on the plane. The cavity structure of the electronic device installation cavity is designed according to the structural shape of the core component, which can realize stable installation of the core component, ensure the reliability of component application, prevent the component from being damaged during working vibration, and does not occupy extra space, which is conducive to reducing the weight of the whole machine; further, through the vehicle-mounted module of the present application, it can be assembled into an integral part with the core component in advance, and the vehicle-mounted module can be directly assembled to the corresponding position during the assembly process of the whole machine, which is conducive to reducing the difficulty of assembling the whole machine and shortening the assembly beat of the whole machine.

[0032] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The disclosure of the present application will become more easily understood with reference to the accompanying drawings. It is easy for those skilled in the art to understand that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present application. In addition, similar numbers in the figures are used to represent similar components, among which: MAHLE internal (CL2)

[0034] Figure 1 This is a schematic diagram of the structure of a vehicle-mounted module of one embodiment of the present application;

[0035] Figure 2 This is a schematic diagram of the exploded structure of a vehicle-mounted module of one embodiment of the present application;

[0036] Figure 3This is a schematic structural diagram of a cooling water tank of a vehicle-mounted module in one embodiment of the present application;

[0037] Figure 4 This is a schematic structural diagram of a vehicle-mounted module from another perspective of one of the embodiments of the present application;

[0038] Figure 5 This is a schematic diagram of the structure of the vehicle-mounted module after the core components are installed in one of the embodiments of the present application;

[0039] Figure 6 This is a schematic diagram of the exploded structure of the vehicle-mounted module after the core components are installed in one embodiment of the present application;

[0040] Figure 7 It is a schematic diagram of the installation extension surface structure of the vehicle-mounted module of one embodiment of the present application.

[0041] Description of reference numerals:

[0042] 100, shell; 101, heat dissipation plane; 102, cooling water tank; 1021, guide rib; 103, cover plate; 104, water inlet; 105, water outlet; 106, installation extension surface; 107, fixing hole; 108, positioning hole;

[0043] 200, electronic device installation cavity; 201, cavity; 202, positioning column; 203, supporting column;

[0044] 300, first core component; 400, second core component; 401, LLC transformer; 402, PFC inductor; 403, DCDC inductor / transformer. DETAILED DESCRIPTION

[0045] Some embodiments of the present application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application and are not intended to limit the protection scope of the present application.

[0046] As described in the background technology, although OBC and DCDC converters are two indispensable on-board components in automobiles, and both require the use of a large number of core devices, such as power devices and magnetic devices, in the field of automotive accessories, the integrated installation of some core components has become a trend, and the core components generally have the problems of large size and weight, difficult installation, and difficult heat dissipation. Based on this, the present application proposes a vehicle-mounted module with a cooling channel to solve the above problems. MAHLE internal (CL2)

[0047] See attached Figure 1 and Figure 2In one or more embodiments, a vehicle-mounted module with a core belt cooling channel of the present application includes: a shell 100, the shell 100 includes an electronic device installation cavity 200, a cooling channel and a heat dissipation plane 101, the electronic device installation cavity 200 and the heat dissipation plane are respectively located on two sides of the cooling channel; the heat dissipation plane 101 is used to install the first core component; the electronic device installation cavity 200 is used to accommodate and install the second core component, and its cavity 201 structure is adapted to the second core component; the cooling channel includes a cooling water trough 102 and a cover plate 103 for circulating the cooling medium, and the heat dissipation plane 101 is formed after the cover plate 103 covers the cooling water trough 102, and the cooling channel provides heat dissipation for the first core component and the second core component installed on both sides at the same time.

[0048] Specifically, in the present application, the first core device may be a patch-type power device, such as a MOS tube, which may be attached to the heat dissipation plane 101, and the cooling channel may take away the heat generated by the MOS tube from one side; the second core device may be a relatively large magnetic device, such as a DCDC inductor / transformer, a PFC inductor or an LLC transformer, and the magnetic device may be installed in the cavity of an electronic device installation cavity 200 with a similar structure, and the cooling channel may take away the heat generated by the magnetic device from the other side. It should be understood that the core device may also be an important component in other automobiles, which can be suitable for the vehicle-mounted module of the present application if it is convenient for contoured installation, integration or convenient for plane installation, and can effectively dissipate the heat of the integrated components on both sides at the same time.

[0049] The vehicle-mounted module of the embodiment of the present application, by arranging the heat dissipation plane 101 and the electronic device installation cavity 200 on both sides of the cooling channel respectively, can realize the concentration of core electronic components with large volume and high heat generation, and provide a mechanical structure for the installation and heat dissipation of the core components. The mechanical structure can provide heat dissipation for various types of core components on both sides at the same time through the heat exchange effect of the cooling medium through the cooling channel, and has the characteristics of modularization and platformization; the heat dissipation plane 101 is easy to process, and provides effective heat dissipation for the core components that can be fixed on the plane. The cavity 201 structure of the electronic device installation cavity 200 is designed according to the structural shape of the core component, which can realize the stable installation of the core component, ensure the reliability of the component application, prevent the component from being damaged during the working vibration, and does not occupy extra space, which is conducive to reducing the weight of the whole machine; further, through the vehicle-mounted module of the present application, it can be assembled into an integral part with the core component in advance, and the vehicle-mounted module can be directly assembled to the corresponding position in the whole machine assembly process MAHLE internal (CL2), which is conducive to reducing the difficulty of whole machine assembly and shortening the whole machine assembly beat.

[0050] In one embodiment, reference Figure 1 and Figure 2The cooling water tank 102 is arranged in the shell 100 and is cast integrally with the shell 100. The cooling water tank 102 cooperates with the cover plate 103 to form a cooling channel. The cooling channel provides a container for the flow path of a cooling medium, such as a coolant. The coolant flows in the cooling channel and can simultaneously take away the heat generated by the first core component installed on the heat dissipation plane 101 and the second core component installed in the electronic component installation cavity 200 through heat exchange, thereby making full use of the space on both sides of the cooling channel and effectively shortening the volume and weight of the vehicle-mounted module.

[0051] Specifically, the shell 100 and the cooling water tank 102 in the shell 100 can be made of die-cast aluminum through a die-casting process, and the cover 103 can be welded to the shell 100 through a stir friction welding process; since the vehicle-mounted module is an independent part relative to the entire electronic control device, rather than being initially set in the entire machine casing, the processing of the surface of the cover 103 is very simple, and it is only necessary to mill the surface of the cover 103, and the flatness and roughness of the surface can be easily processed to the level required for heat dissipation of the core components. The heat dissipation plane 101 with sufficient area can meet the heat dissipation requirements of the first core component installed thereon. If the vehicle-mounted module is not an independent part, but is integrated in the entire chassis, then when you want to process a plane with heat dissipation function, the plane is in a vertical state, the processing is difficult and the cycle is long, which will affect the heat dissipation performance and increase the processing cost.

[0052] In one possible implementation, referring to Figure 2 and Figure 3 The cooling water tank 102 is provided with guide ribs 1021, which can ensure that the coolant in the cooling channel flows in an ideal direction, while increasing the contact area between the cooling channel and the coolant, making the heat exchange more efficient, thereby providing better heat dissipation for the core components on both sides.

[0053] Specifically, in the present application, due to the heat dissipation area requirement of the heat dissipation plane 101 and the requirement for sufficient area for installation of core components, the shell 100 and the cover plate 103 are extended along the flow direction of the cooling medium to have more heat dissipation area. Therefore, in order to further improve the heat exchange efficiency, the guide rib 1021 can be extended along the flow direction of the cooling medium to make the coolant flow in the cooling channel along the original flow direction of the cooling medium, and in order to increase the contact area between the cooling channel and the coolant, a plurality of guide ribs 1021 can be provided, and the ends of the plurality of guide ribs 1021 are interconnected, and the coolant flows along the plurality of guide ribs 1021 in the cooling channel.

[0054] In one possible implementation, referring to Figure 4The shell 100 is provided with a water inlet 104 and a water outlet 105, which are respectively arranged at both ends of the cooling channel and are connected to the cooling channel. The coolant flows into the cooling channel from the water inlet 104 and finally flows out of the cooling channel from the water outlet 105.

[0055] In one possible implementation, referring to Figure 4 The shell 100 is provided with installation extension surfaces 106 around the water inlet 104 and the water outlet 105, that is, the water inlet 104 and the water outlet 105 have a plane with sufficient area around them, which can provide a compression sealing space for the sealing ring. When the cooling channel in the shell 10 is connected to the water channel of the whole machine shell to be installed or the external water channel through the sealing ring, the connection and sealing between the water channels are realized.

[0056] In one embodiment, referring to Figure 1 and Figure 2 The electronic device installation cavity 200 has at least two connected cavities 201, and at least two cavities 201 are arranged along the flow direction of the cooling medium. Each cavity 201 is configured to install a second core component, and the structure of each cavity 201 is similar to the corresponding second core component installed, that is, a plurality of cavities 201 for installing the second core component can be arranged in the electronic device installation cavity 200, and the structure of each cavity 201 is contoured according to the structural shape of the corresponding core component installed. The contoured structure can realize stable and reliable installation of the device. At the same time, it does not occupy excess space, which is conducive to reducing the overall weight and volume.

[0057] In one possible implementation, referring to Figure 2 The electronic component installation cavity 200 is provided with a positioning column 202 and a support column 203 adapted to the installed second core component, which can ensure the positioning and support of the core component during installation. It should be understood that the positioning column 202 and the support column 203 in the figure are only for schematic display, and are not specific restrictions on their specific positions and quantities. In actual use, corresponding settings are made according to the specific core components installed.

[0058] In one possible implementation, referring to Figure 1-Figure 4, the housing 100 and the electronic device installation cavity 200 are integrally die-cast. Specifically, since the vehicle-mounted module of the present application is an independent structural part, the contoured structure of the housing 100 and the electronic device installation cavity 200 can be integrally processed through the die-casting process MAHLE internal (CL2), and the processing difficulty of the curved surface position is low, which can effectively ensure the process requirements of uniform wall thickness of the die-casting part; however, if the vehicle-mounted module is not an independent part but integrated in the whole machine housing to be installed, then due to the limitation of the die-casting process, some contoured curved surfaces cannot be processed, and the uniform wall thickness of the die-casting part cannot be guaranteed. The independent design of the vehicle-mounted module of the present application effectively reduces the volume and weight of the overall device.

[0059] Further, in one or more embodiments, referring to Figure 1-Figure 5 In the vehicle-mounted module of the present application; the first core component 300 is installed on the heat dissipation plane 101; the second core component 400 is installed in the electronic component installation cavity 200, and can be assembled into an integral part with the core component in advance through the shell 100, that is, the vehicle-mounted module with the component installation is completed. During the whole machine assembly process, this vehicle-mounted module can be directly assembled to the corresponding position, which is conducive to reducing the difficulty of the whole machine assembly and shortening the whole machine assembly beat.

[0060] In one embodiment, referring to Figure 5 and Figure 6 , Figure 6 yes Figure 5The exploded structure diagram shows that the first core device 300 is a power device, such as a MOS tube, which is attached to the heat dissipation plane 101 of the cover plate 103 for heat dissipation, and they are fixed together by a thermally conductive insulating adhesive, and the coolant flows in the cooling channel to take away the heat generated by the MOS tube through heat exchange, so that the power device can realize the power conversion function of the OBC and DCDC converters; the second core device 400 is a magnetic device, for example, in the present application, the second core device 400 includes an LLC transformer 401, a PFC inductor 402 and a DCDC inductor / transformer 403, which are respectively installed in the cavity 201 of corresponding structure and shape, and the DCDC inductor / transformer 403 is The key components that convert the DC high voltage output of the OBC into DC low voltage, thereby providing energy for the on-board low voltage equipment. The PFC inductor 402 and the LLC transformer 401 are key components that convert the AC high voltage of the power grid into DC high voltage, thereby charging the on-board battery. After these magnetic components are installed in place, the thermal conductive potting glue is poured into the electronic device installation cavity 200 of the contoured structure to fill the gap between the magnetic device and the electronic device installation cavity 200. After the potting glue is fully cured, the magnetic device can be fixed and will not be damaged during the working vibration. At the same time, the side of the contoured electronic device installation cavity 200 has coolant in the cooling channel flowing through it, and the coolant takes away the heat generated by the magnetic device through heat exchange. MAHLE internal (CL2)

[0061] In one possible implementation, referring to Figure 4 and Figure 7 The vehicle-mounted module is provided with a number of fixing holes 107 and positioning holes 108 adapted to the overall installation of the vehicle-mounted module. After all core components, including power components and magnetic components, are installed and fixed to the vehicle-mounted module to form an integral part, the positioning holes 108 can facilitate the installation and positioning of the overall vehicle-mounted module. The screws are installed through the fixing holes 107 to ensure the installation reliability of the overall vehicle-mounted module and effectively reduce the difficulty and rhythm of the whole machine assembly. It should be understood that in the illustration of the present application, two mutually symmetrical reference positioning holes 108 and five fixing holes 107 set on the installation extension surface 106 are shown, which is only for the convenience of understanding the structural setting method and function of the fixing holes 107 and the positioning holes 108, and is not a limitation on their specific position and number. In actual use, the position and number of the fixing holes 107 and the positioning holes 108 can be set according to the specific installation position and method of the vehicle-mounted module in the whole machine.

[0062] Based on the above implementation mode, reference Figure 1-Figure 7An optional installation process of the vehicle-mounted module of this embodiment is: identify and select core components, which in this application include power components and magnetic components, which usually generate a lot of heat, and the magnetic components usually have the largest volume and weight; use die-cast aluminum and process an integrally formed housing 100 and an electronic component installation cavity 200 through a die-casting process, and die-cast a cover plate 103 adapted to the housing 100, and mill the outer surface of the cover plate 103 flat to form a heat dissipation plane 101, wherein the housing 100 has a cooling water tank 102, and the electronic component installation cavity 200 is arranged according to the magnetic The number and structure of the magnetic devices are die-casted; the cover plate 103 is welded to the housing 100 by the stir friction welding process, and forms a cooling channel with the cooling water tank 102; the power device is attached to the heat dissipation plane 101 by thermally conductive insulating adhesive; the magnetic device is matched with the corresponding profiling structure position and installed in the electronic device installation cavity 200. After installation, the magnetic device is poured into the electronic device installation cavity 200 by thermally conductive potting glue to fill the gap between the magnetic device and the electronic device installation cavity 200. After curing, the installation and fixation of the magnetic device are completed, thereby completing the installation of the entire vehicle-mounted module. During use, the coolant flows into the cooling water channel through the water inlet 104. The coolant takes away the heat generated by the power devices and magnetic devices on both sides of the cooling channel at the same time through heat exchange, and the coolant finally flows out of the cooling water channel from the water outlet 105.

[0063] Furthermore, the present application provides an electronic control device, comprising the vehicle-mounted module as described above. MAHLE internal (CL2)

[0064] Specifically, the electronic control device can be a two-in-one vehicle-mounted OBC and DCDC converter, and its vehicle-mounted module includes power devices and magnetic devices of the vehicle-mounted OBC and DCDC converter. The vehicle-mounted module brings together the electronic components with the largest volume and the highest heat generation in the vehicle-mounted OBC and DCDC converter, and designs an adaptive structure to dissipate heat for them. It has the characteristics of modularization and platformization, and is conducive to reducing the difficulty of whole machine assembly and shortening the whole machine assembly rhythm. The specific structural settings and effects of the vehicle-mounted module are in the above-mentioned implementation mode, and the repeated parts will not be repeated.

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0066] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0067] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application. MAHLE internal (CL2).

Claims

1. A vehicle-mounted module with a cooling channel, characterized in that: The vehicle-mounted module comprises: A housing, the housing comprising an electronic device installation cavity, a cooling channel and a heat dissipation plane, wherein the electronic device installation cavity and the heat dissipation plane are respectively located on two sides of the cooling channel; The heat dissipation plane is used to install the first core component; The electronic device installation cavity is used to accommodate and install a second core device, and its cavity structure is adapted to the second core device; The cooling channel includes a cooling water trough for cooling medium to flow and a cover plate. The cover plate covers the cooling water trough to form the heat dissipation plane.

2. The vehicle-mounted module with cooling channel according to claim 1, characterized in that: The cooling water trough is arranged in the shell and is integrally cast with the shell. The cooling water trough cooperates with the cover plate to form the cooling channel.

3. The vehicle-mounted module with cooling channel according to claim 2, characterized in that: The cooling water tank is provided with flow guiding ribs.

4. The vehicle-mounted module with cooling channel according to claim 3, characterized in that: The shell is provided with a water inlet and a water outlet, and the water inlet and the water outlet are respectively arranged at two ends of the cooling channel and communicated with the cooling channel.

5. The vehicle-mounted module with cooling channel according to claim 1, characterized in that: The electronic component installation cavity has at least two cavities arranged along the flow direction of the cooling medium, and each of the cavities is configured to install one of the second core components.

6. The vehicle-mounted module with cooling channel according to claim 1, characterized in that: The electronic component installation cavity is provided with positioning columns and supporting columns adapted to the installed second core component; the electronic component installation cavity and the shell are integrally die-cast.

7. The vehicle-mounted module with cooling channel according to claim 1, characterized in that: The first core component is mounted on the heat dissipation plane; The second core component is installed in the electronic component installation cavity.

8. The vehicle-mounted module with cooling channel according to claim 7, characterized in that: The first core device is a power device; the second core device is a magnetic device.

9. The vehicle-mounted module with cooling channel according to claim 7, characterized in that: The first core component is fixed on the heat dissipation plane by gluing; the second core component is fixed in the electronic component installation cavity by heat-conductive potting glue.

10. The vehicle-mounted module with cooling channel according to claim 7, characterized in that: The shell is provided with a plurality of fixing holes and positioning holes adapted for the overall installation of the vehicle-mounted module.

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