Inverter device, motor controller, and vehicle

Abstract

The utility model relates to a kind of inverter device, motor controller and vehicle, the inverter device includes: heat dissipation shell, first power module, second power module, capacitor and filter, and heat dissipation waterway is equipped in the heat dissipation shell;The first power module and the second power module are respectively arranged in the two sides of the heat dissipation shell along first direction, and all can be heat exchanged with the heat dissipation waterway;At least part of the capacitor and at least part of the filter are located in the heat dissipation shell, and all can be heat exchanged with the heat dissipation waterway.The position arrangement of the component of the inverter device of the utility model is reasonable, and it is favorable to improve heat dissipation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to an inverter, a motor controller, and a vehicle. Background Technology

[0002] As a core power component of new energy vehicles, the motor controller enables speed and torque control of the motor to meet the power demands of the vehicle under various operating conditions. In related technologies, the inverter device of the motor controller includes components such as power modules, capacitors, and filters. However, the unreasonable arrangement of these components results in low overall heat dissipation efficiency of the motor controller. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of this utility model propose an inverter device in which the components are arranged in a reasonable manner, which is conducive to improving heat dissipation efficiency.

[0005] An embodiment of this utility model also proposes a motor controller.

[0006] An embodiment of this utility model also proposes a vehicle.

[0007] The inverter device of this utility model includes: a heat sink housing, wherein a heat dissipation channel is provided inside the heat sink housing; a first power module and a second power module, wherein the first power module and the second power module are respectively arranged on both sides of the heat sink housing along a first direction, and both can exchange heat with the heat dissipation channel; a capacitor and a filter, wherein at least a portion of the capacitor and at least a portion of the filter are disposed inside the heat sink housing, and both can exchange heat with the heat dissipation channel.

[0008] According to the embodiment of the present invention, the inverter device has a compact structure and high integration. Since the first power module and the second power module are respectively arranged on both sides of the heat sink along the first direction, and at least a portion of the capacitor and at least a portion of the filter are disposed inside the heat sink, the first power module, the second power module, the capacitor and the filter can all exchange heat with the heat dissipation channel, which can make the overall heat dissipation of the inverter device balanced and improve the heat dissipation efficiency.

[0009] In some embodiments, the heat sink contains a first chamber and a second chamber, which are arranged sequentially along a second direction orthogonal to the first direction. At least a portion of the capacitor is disposed in the first chamber, and at least a portion of the filter is disposed in the second chamber. By employing the capacitor and filter in the above manner, the inverter device of this embodiment can reduce the size of the inverter device along the first direction, thereby making the external dimensions of the inverter device more regular.

[0010] In some embodiments, the first power module and the second power module are respectively arranged on both sides of the first chamber along the first direction. Since the first chamber is used to install capacitors, the arrangement of the first power module and the second power module on both sides of the first chamber along the first direction facilitates the electrical connection of the first power module and the second power module with the capacitor, which helps to improve the compactness of the inverter component layout.

[0011] In some embodiments, the first chamber has a first opening for placing the capacitor, and the second chamber has a second opening for placing the filter. The first opening and the second opening are respectively arranged on both sides of the heat sink along the second direction. During the assembly of the inverter, the capacitor can be placed into the first chamber through the first opening, and the filter can be placed into the second chamber through the second opening. Since the first opening and the second opening are respectively arranged on both sides of the heat sink along the second direction, the assembly of the capacitor and the filter is facilitated.

[0012] In some embodiments, the heat sink includes an outer shell, a first partition, and a second partition. Both the first and second partitions are disposed within the outer shell. The capacitor is arranged between the first and second partitions along the first direction. The heat dissipation channel includes a first channel and a second channel. The first channel is disposed between the first power module and the first partition, and the second channel is disposed between the second power module and the second partition. The first and second partitions prevent direct contact between the coolant and the capacitor, thereby improving the capacitor's waterproof performance. Because the first channel is located between the first power module and the first partition, and the second channel is located between the second power module and the second partition, the coolant in the first channel can directly exchange heat with the first power module. The coolant in the second channel can directly exchange heat with the second power module, thereby improving the heat exchange efficiency between the first and second power modules.

[0013] In some embodiments, the cooling channel further includes a third channel, which is arranged orthogonally to the first direction on at least one side of the capacitor. Both the first and second channels are in communication with the third channel, and both the capacitor and the filter can exchange heat with the third channel. The coolant in the third channel can flow along the first direction, thereby exchanging heat with the sidewalls of the capacitor and the filter, further improving the heat dissipation effect of the inverter.

[0014] In some embodiments, the first power module has a first heat dissipation fin on the side facing the first partition, and the first heat dissipation fin can contact the liquid in the first water channel. The second power module has a second heat dissipation fin on the side facing the second partition, and the second heat dissipation fin can contact the liquid in the second water channel. Because the first power module has a first heat dissipation fin on the side facing the first partition, the contact area between the first power module and the liquid in the first water channel can be increased, thereby improving the heat exchange effect of the first power module. Similarly, because the second power module has a second heat dissipation fin on the side facing the second partition, the contact area between the second power module and the liquid in the second water channel can be increased, thereby improving the heat exchange effect of the second power module.

[0015] In some embodiments, the inverter further includes a first seal and a second seal. The first seal is disposed between the first power module and the heat sink, and the second seal is disposed between the second power module and the heat sink. The first seal prevents coolant in the cooling channels from leaking from the mounting positions of the first power module and the heat sink, and the second seal prevents coolant in the cooling channels from leaking from the mounting positions of the second power module and the heat sink, thereby improving the sealing effect of the inverter.

[0016] In some embodiments, the housing is provided with an inlet and an outlet. The inlet is connected to one of the first and second water channels, and the outlet is connected to the other of the first and second water channels. This allows the cooling channels to form a loop for coolant exchange with the outside environment, thereby improving the heat dissipation effect of the heat sink.

[0017] In some embodiments, the filter has a first wiring portion located outside the heat sink. The filter is electrically connected to the capacitor. The capacitor has a first conductive portion and a second conductive portion, both of which are located outside the heat sink. The first conductive portion is electrically connected to the first power module, and the second conductive portion is electrically connected to the second power module. Since the first wiring portion, the first conductive portion, and the second conductive portion are all located outside the heat sink, it facilitates the connection of the filter to the positive and negative terminal harnesses of the battery pack, and also facilitates the electrical connection of the first and second power modules to the capacitor, thereby improving the ease of assembly of the inverter.

[0018] In some embodiments, the inverter further includes a first drive board and a first current sensor. The first drive board is disposed along the first direction on the side of the first power module opposite to the heat sink. Both the first power module and the first current sensor are connected to the first drive board. The first current sensor is used to detect the three-phase current output by the first power module. By arranging the first drive board and the first current sensor in the above manner, the inverter of this embodiment can improve the compactness of the inverter arrangement.

[0019] In some embodiments, the inverter further includes a second drive board and a second current sensor. The second drive board is disposed along the first direction on the side of the second power module opposite to the heat sink. Both the second power module and the second current sensor are connected to the second drive board. The second current sensor is used to detect the three-phase current output by the second power module. By arranging the second drive board and the second current sensor in the above manner, the inverter of this embodiment can improve the compactness of the inverter arrangement.

[0020] Another embodiment of the motor controller of this utility model includes the inverter device described in any one of the embodiments of this utility model.

[0021] According to the embodiment of the present invention, the motor controller of the inverter device has a compact structure and high integration. The first power module and the second power module of the inverter device are respectively arranged on both sides of the heat sink along the first direction, and at least a portion of the capacitor and at least a portion of the filter are disposed in the heat sink. Furthermore, the first power module, the second power module, the capacitor and the filter can all exchange heat with the heat dissipation channel, which can make the overall heat dissipation of the motor controller more balanced and improve the heat dissipation efficiency.

[0022] Another embodiment of the vehicle of the present invention includes the inverter or the motor controller described in any one of the embodiments of the present invention.

[0023] According to the vehicle of the present invention, since the first power module and the second power module of the inverter are respectively arranged on both sides of the heat sink along the first direction, and at least a portion of the capacitor and at least a portion of the filter are disposed in the heat sink, the inverter has a compact structure and high integration. Furthermore, the first power module, the second power module, the capacitor and the filter can all exchange heat with the heat dissipation channel, which can make the overall heat dissipation of the inverter balanced and improve the heat dissipation efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the inverter device according to an embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of the inverter device according to another perspective of an embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram of the inverter device according to another embodiment of the present utility model.

[0027] Figure 4 This is an exploded view of the inverter device according to an embodiment of the present invention.

[0028] Figure 5 This is a cross-sectional view of the inverter device according to an embodiment of the present invention.

[0029] Figure 6 This is a schematic diagram of the inverter device of this utility model with some parts removed.

[0030] Figure 7 This is a schematic diagram from another perspective showing the inverter device of this utility model with some parts removed.

[0031] Figure label: 1. Heat dissipation shell; 11. Heat dissipation channel; 111. First channel; 112. Second channel; 113. Third channel; 12. First chamber; 121. First opening; 13. Second chamber; 131. Second opening; 14. Water inlet; 15. Water outlet; 16. Connecting post; 101. Outer shell; 102. First partition; 103. Second partition; 2. First power module; 21. First heat sink fins; 3. Second power module; 31. Second heat sink fins; 4. Capacitor; 41. First conductive part; 42. Second conductive part; 5. Filter; 51. First wiring section; 61. First seal; 62. Second seal; 71. First drive board; 72. Second drive board; 81. First current sensor; 82. Second current sensor; 91. Adapter harness; 92. Cable clamp. Detailed Implementation

[0032] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0033] The following is a reference appendix. Figures 1 to 7 This invention describes an inverter, a motor controller, and a vehicle according to embodiments of the present invention.

[0034] like Figures 1 to 5 As shown, the motor controller of this utility model embodiment includes: a heat sink 1, a first power module 2, a second power module 3, a capacitor 4, and a filter 5.

[0035] like Figure 5 As shown, the heat sink 1 has a heat dissipation channel 11 inside, and the first power module 2 and the second power module 3 are arranged along a first direction (e.g., Figure 1 The first power module 2 and the second power module 3 are respectively arranged on both sides of the heat sink 1 in the vertical direction. Both the first power module 2 and the second power module 3 can exchange heat with the heat sink 11. At least a portion of the capacitor 4 and at least a portion of the filter 5 are disposed in the heat sink 1. Both the capacitor 4 and the filter 5 can exchange heat with the heat sink 11.

[0036] According to the embodiment of the present invention, the inverter device has a compact structure and high integration, as the first power module 2 and the second power module 3 are respectively arranged on both sides of the heat sink 1 along the first direction, and at least a portion of the capacitor 4 and at least a portion of the filter 5 are disposed inside the heat sink 1. This helps to save installation space. Furthermore, the first power module 2, the second power module 3, the capacitor 4, and the filter 5 can all exchange heat with the heat dissipation channel 11, which can make the overall heat dissipation of the inverter device more balanced and improve the heat dissipation efficiency.

[0037] It is understandable that coolant can circulate in the hot water exchange channel. When the coolant flows through the hot water exchange channel, it can carry away the heat of the first power module 2, the second power module 3, the capacitor 4, and the filter 5. This can cool down the first power module 2, the second power module 3, the capacitor 4, and the filter 5, so as to ensure that the various components of the inverter can operate stably and for a long time.

[0038] In addition, since the first power module 2 and the second power module 3 are respectively arranged on both sides of the heat sink 1 along the first direction, compared with the scheme of "the two power modules are respectively located on different controllers" or "the first power module 2 and the second power module 3 are laid flat on the shell", the compactness of the inverter arrangement can be improved, the horizontal space occupation can be reduced, and the manufacturing cost is lower.

[0039] For example, the heat sink 1 can be a metal shell to improve its thermal conductivity and further accelerate the heat dissipation of the first power module 2, the second power module 3, the capacitor 4, and the filter 5. For instance, the heat sink 1 can be made of aluminum.

[0040] Since at least a portion of capacitor 4 and at least a portion of filter 5 are disposed within heat sink 1, the heat dissipation channel 11 can absorb the heat transferred from capacitor 4 and filter 5 to heat sink 1 due to the good thermal conductivity of heat sink 1, thereby reducing the operating temperature of capacitor 4 and filter 5. Compared to the scheme of "capacitor 4 and filter 5 dissipating heat through natural convection", the heat dissipation efficiency of capacitor 4 and filter 5 can be improved.

[0041] Optionally, such as Figure 6 and Figure 7 As shown, the heat sink 1 contains a first chamber 12 and a second chamber 13, which are arranged sequentially along a second direction, orthogonal to the first direction. At least a portion of the capacitor 4 is disposed in the first chamber 12, and at least a portion of the filter 5 is disposed in the second chamber 13. By employing the capacitor 4 and filter 5 in the above manner, the inverter device of this embodiment can reduce the size of the inverter device along the first direction, thereby making the external dimensions of the inverter device more regular.

[0042] For example, the first direction can be the vertical direction of the electric drive assembly (vehicle), and the second direction can be the horizontal direction of the electric drive assembly (vehicle). That is, the capacitor 4 and the filter 5 are arranged in the horizontal direction.

[0043] Optionally, such as Figure 5 As shown, the first power module 2 and the second power module 3 are respectively arranged on both sides of the first chamber 12 along the first direction. Since the first chamber 12 is used to install the capacitor 4, the arrangement of the first power module 2 and the second power module 3 on both sides of the first chamber 12 along the first direction facilitates the electrical connection between the first power module 2 and the second power module 3 and the capacitor, which is beneficial to improving the compactness of the inverter component arrangement.

[0044] Optionally, such as Figure 6 and Figure 7As shown, the first chamber 12 has a first opening 121 for placing the capacitor 4, and the second chamber 13 has a second opening 131 for placing the filter 5. The first opening 121 and the second opening 131 are respectively arranged on both sides of the heat sink 1 along a second direction. When assembling the inverter, the capacitor 4 can be placed into the first chamber 12 through the first opening 121, and the filter 5 can be placed into the second chamber 13 through the second opening 131. Since the first opening 121 and the second opening 131 are respectively arranged on both sides of the heat sink 1 along the second direction, the assembly of the capacitor 4 and the filter 5 is facilitated.

[0045] For example, the capacitor 4 and the filter 5 can be fixed inside the heat sink 1 by potting, which can improve the stability of the assembled capacitor 4 and filter 5 and provide better waterproofing.

[0046] Optionally, such as Figure 5 As shown, the heat sink 1 includes an outer shell 101, a first partition 102 and a second partition 103. The first partition 102 and the second partition 103 are both disposed inside the outer shell 101. The capacitor 4 is arranged between the first partition 102 and the second partition 103 along a first direction. The heat dissipation channel 11 includes a first channel 111 and a second channel 112. The first channel 111 is disposed between the first power module 2 and the first partition 102, and the second channel 112 is disposed between the second power module 3 and the second partition 103.

[0047] like Figure 5 As shown, the first partition 102 and the second partition 103 prevent the coolant from directly contacting the capacitor 4, thereby improving the waterproof effect of the capacitor 4. When the coolant flows through the first water channel 111, the coolant in the first water channel 111 can transfer its cooling capacity to the first partition 102, and the first partition 102 exchanges heat with the capacitor 4. When the coolant flows through the second water channel 112, the coolant in the second water channel 112 can transfer its cooling capacity to the second partition 103, and the second partition 103 exchanges heat with the capacitor 4. In other words, the coolant in the heat dissipation channel 11 can exchange heat with the capacitor 4 through the first partition 102 and the second partition 103.

[0048] Since the first water channel 111 is located between the first power module 2 and the first partition 102, and the second water channel 112 is located between the second power module 3 and the second partition 103, the coolant in the first water channel 111 can directly exchange heat with the first power module 2. The coolant in the second water channel 112 can directly exchange heat with the second power module 3, thereby improving the heat exchange effect of the first power module 2 and the second power module 3.

[0049] Optionally, such as Figure 5As shown, the cooling channel 11 also includes a third channel 113, which is arranged orthogonally to the first direction on at least one side of the capacitor 4. Both the first channel 111 and the second channel 112 are connected to the third channel 113, allowing heat exchange between the capacitor 4 and the filter 5. For example, a portion of the third channel 113 may be located between the capacitor 4 and the filter 5. It is understood that the coolant in the third channel 113 can flow along the first direction, thereby exchanging heat with the sidewalls of the capacitor 4 and the filter 5, further improving the heat dissipation effect of the inverter.

[0050] Optionally, such as Figure 4 and Figure 5 As shown, the first power module 2 has a first heat dissipation fin 21 on the side facing the first partition 102, and the first heat dissipation fin 21 can contact the liquid in the first water channel 111. The second power module 3 has a second heat dissipation fin 31 on the side facing the second partition 103, and the second heat dissipation fin 31 can contact the liquid (coolant) in the second water channel 112.

[0051] Since the first power module 2 has a first heat dissipation fin 21 on the side facing the first partition 102, the contact area between the first power module 2 and the liquid in the first water channel 111 can be increased, thereby improving the heat exchange effect of the first power module 2. Since the second power module 3 has a second heat dissipation fin 31 on the side facing the second partition 103, the contact area between the second power module 3 and the liquid in the second water channel 112 can be increased, thereby improving the heat exchange effect of the second power module 3.

[0052] For example, the first heat dissipation fin 21 and the second heat dissipation fin 31 can be in the shape of a sheet or a column.

[0053] Optionally, such as Figure 4 and Figure 5 As shown, the inverter also includes a first seal 61 and a second seal 62. The first seal 61 is disposed between the first power module 2 and the heat sink 1, and the second seal 62 is disposed between the second power module 3 and the heat sink 1. The first seal 61 can prevent the coolant in the cooling channel 11 from leaking from the mounting position of the first power module 2 and the heat sink 1, and the second seal 62 can prevent the coolant in the cooling channel 11 from leaking from the mounting position of the second power module 3 and the heat sink 1, thereby improving the sealing effect of the inverter.

[0054] For example, the first seal 61 and the second seal 62 can be resilient rubber sealing rings.

[0055] Optionally, such as Figure 3 and Figure 5As shown, the outer casing 101 is provided with a water inlet 14 and a water outlet 15. The water inlet 14 is connected to one of the first water channel 111 and the second water channel 112, and the water outlet 15 is connected to the other of the first water channel 111 and the second water channel 112. This allows the heat dissipation channel 11 to form a loop for exchanging coolant with the outside, thereby improving the heat dissipation effect of the heat dissipation casing 1.

[0056] Understandably, the water inlet 14 is used to connect to an external water inlet pipe so that coolant can enter the cooling channel 11 through the water inlet 14, and the water outlet 15 is used to connect to an external water outlet pipe so that coolant in the cooling channel 11 can be discharged through the water outlet 15. like Figure 5 As shown, the water inlet 14 is connected to the second water channel 112, and the water outlet 15 is connected to the first water channel 111. The second water channel 112 is connected to the first water channel 111 through the third water channel 113. This allows the coolant to circulate in a "bottom in, top out" pattern within the heat sink 1, which is beneficial for improving the heat exchange effect of the coolant.

[0057] Optionally, such as Figure 3 As shown, the filter 5 has a first wiring portion 51 located outside the heat sink 1. The filter 5 is electrically connected to the capacitor 4. The capacitor 4 has a first conductive portion 41 and a second conductive portion 42, both of which are located outside the heat sink 1. The first conductive portion 41 is electrically connected to the first power module 2, and the second conductive portion 42 is electrically connected to the second power module 3. Since the first wiring portion 51, the first conductive portion 41, and the second conductive portion 42 are all located outside the heat sink 1, it is convenient to connect the filter 5 to the positive and negative terminal harnesses of the battery pack, and it is also convenient to connect the first power module 2 and the second power module 3 to the capacitor 4, which improves the ease of assembly of the inverter.

[0058] like Figures 1 to 3 As shown, the inverter device also includes a first drive board 71 and a first current sensor 81. The first drive board 71 is disposed along a first direction on the side of the first power module 2 away from the heat sink 1. Both the first power module 2 and the first current sensor 81 are connected to the first drive board 71. The first current sensor 81 is used to detect the three-phase current output by the first power module 2. By arranging the first drive board 71 and the first current sensor 81 in the above manner, the inverter device of this embodiment can improve the compactness of the inverter device layout.

[0059] like Figures 1 to 3As shown, the inverter also includes a second drive board 72 and a second current sensor 82. The second drive board 72 is disposed along a first direction on the side of the second power module 3 opposite to the heat sink 1. Both the second power module 3 and the second current sensor 82 are connected to the second drive board 72. The second current sensor 82 is used to detect the three-phase current output by the second power module 3. By arranging the second drive board 72 and the second current sensor 82 in the above manner, the inverter of this embodiment can improve the compactness of the inverter arrangement.

[0060] like Figure 1 and Figure 2 As shown, the outer wall of the housing 101 is provided with multiple connecting posts 16. Some connecting posts 16 are arranged near the first current sensor 81, and other connecting posts 16 are arranged near the second current sensor 82. The connecting posts 16 are used to fix the three-phase output copper busbar (not shown) to improve the stability of the three-phase output copper busbar after installation.

[0061] like Figure 2 and Figure 4 As shown, the inverter also includes a converter harness 91 and a cable clamp 92. The converter harness 91 is connected to the second drive board 72 located on the lower side. The lower end of the converter harness 91 is connected to the second drive board 72, and the upper end of the converter harness 91 is used to connect to the control board of the motor controller. The cable clamp 92 is located on the outer wall of the heat sink 1 and is connected to the converter harness 91 to improve the stability of the converter harness 91 after installation.

[0062] Another embodiment of the motor controller of this utility model includes the inverter device of this utility model.

[0063] According to the embodiment of the present invention, the motor controller of the inverter device has a compact structure and high integration. The first power module 2 and the second power module 3 of the inverter device are respectively arranged on both sides of the heat sink 1 along the first direction, and at least a portion of the capacitor 4 and at least a portion of the filter 5 are disposed in the heat sink 1. Furthermore, the first power module 2, the second power module 3, the capacitor 4 and the filter 5 can all exchange heat with the heat dissipation channel 11, which can make the overall heat dissipation of the motor controller more balanced and improve the heat dissipation efficiency.

[0064] It is understood that the motor controller in this embodiment of the present invention is a dual-motor controller. When the dual-motor controller is applied in a pure electric vehicle, it can drive the two motors to output greater power to meet the vehicle's higher power requirements. When the dual-motor controller is applied in a hybrid vehicle, it can drive the generator and the motor separately, thereby achieving the requirements of energy recovery, power generation, and electric operation.

[0065] Another embodiment of the vehicle of this utility model includes the inverter device or motor controller of this utility model. The technical effects of the vehicle of this utility model embodiment are the same as the technical effects of the inverter device or motor controller of this utility model, and will not be described in detail here.

[0066] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0068] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0069] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0070] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0071] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. An inverter device, characterized by comprising: include: A heat dissipation shell (1) is provided with heat dissipation channels (11) inside the heat dissipation shell (1); The first power module (2) and the second power module (3) are respectively arranged on both sides of the heat sink (1) along the first direction, and both can exchange heat with the heat dissipation channel (11). A capacitor (4) and a filter (5) are provided, at least a portion of the capacitor (4) and at least a portion of the filter (5) are disposed within the heat dissipation shell (1), and both can exchange heat with the heat dissipation channel (11).

2. The inverter device according to claim 1, characterized by The heat sink (1) is provided with a first chamber (12) and a second chamber (13). The first chamber (12) and the second chamber (13) are arranged sequentially along a second direction, which is orthogonal to the first direction. At least a portion of the capacitor (4) is disposed in the first chamber (12), and at least a portion of the filter (5) is disposed in the second chamber (13).

3. The inverter device according to claim 2, characterized by The first power module (2) and the second power module (3) are respectively arranged on both sides of the first chamber (12) along the first direction.

4. The inverter device according to claim 2, wherein The first chamber (12) has a first opening (121) for placing the capacitor (4), and the second chamber (13) has a second opening (131) for placing the filter (5). The first opening (121) and the second opening (131) are respectively arranged on both sides of the heat sink (1) along the second direction.

5. The inverter device according to claim 1, wherein The heat dissipation shell (1) includes an outer shell (101), a first partition (102) and a second partition (103). The first partition (102) and the second partition (103) are both disposed inside the outer shell (101). The capacitor (4) is arranged between the first partition (102) and the second partition (103) along the first direction. The heat dissipation channel (11) includes a first channel (111) and a second channel (112). The first channel (111) is disposed between the first power module (2) and the first partition (102), and the second channel (112) is disposed between the second power module (3) and the second partition (103).

6. The inverter device according to claim 5, wherein The heat dissipation channel (11) further includes a third channel (113), which is arranged orthogonally to the first direction on at least one side of the capacitor (4). The first channel (111) and the second channel (112) are both connected to the third channel (113), and the capacitor (4) and the filter (5) can exchange heat with the third channel (113).

7. The inverter device according to claim 5, wherein The first power module (2) has a first heat dissipation fin (21) on the side facing the first partition (102), and the first heat dissipation fin (21) can contact the liquid in the first water channel (111). The second power module (3) has a second heat dissipation fin (31) on the side facing the second partition (103), and the second heat dissipation fin (31) can contact the liquid in the second water channel (112).

8. The inverter device according to claim 5, wherein The inverter device further includes a first seal (61) and a second seal (62), the first seal (61) being disposed between the first power module (2) and the heat sink (1), and the second seal (62) being disposed between the second power module (3) and the heat sink (1).

9. The inverter device according to claim 5, wherein The outer casing (101) is provided with a water inlet (14) and a water outlet (15). The water inlet (14) is connected to one of the first water channel (111) and the second water channel (112), and the water outlet (15) is connected to the other of the first water channel (111) and the second water channel (112).

10. The inverter device according to any one of claims 1 to 9, characterized by The filter (5) has a first wiring portion (51) located outside the heat sink (1). The filter (5) is electrically connected to the capacitor (4). The capacitor (4) has a first conductive portion (41) and a second conductive portion (42). Both the first conductive portion (41) and the second conductive portion (42) are located outside the heat sink (1). The first conductive portion (41) is electrically connected to the first power module (2), and the second conductive portion (42) is electrically connected to the second power module (3).

11. The inverter device according to any one of claims 1 to 9, characterized by The inverter device further includes a first drive board (71) and a first current sensor (81). The first drive board (71) is disposed along the first direction on the side of the first power module (2) away from the heat sink (1). The first power module (2) and the first current sensor (81) are both connected to the first drive board (71). The first current sensor (81) is used to detect the three-phase current output by the first power module (2). And / or, the inverter further includes a second drive board (72) and a second current sensor (82). The second drive board (72) is disposed along the first direction on the side of the second power module (3) away from the heat sink (1). The second power module (3) and the second current sensor (82) are both connected to the second drive board (72). The second current sensor (82) is used to detect the three-phase current output by the second power module (3).

12. An electric machine controller characterized by Including the inverter device according to any one of claims 1-11.

13. A vehicle, characterized in that, It includes the inverter device according to any one of claims 1-11 or the motor controller according to claim 12.

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