Radiator, power module, motor controller and vehicle

Abstract

The utility model discloses a radiator, a power module, a motor controller and a vehicle, and the radiator comprises a bottom plate, a first side surface of the bottom plate is suitable for being attached to the power module; the cover plate is connected with the bottom plate; wherein the bottom plate is provided with a groove, the bottom surface of the groove is close to the first side surface of the bottom plate, the notch of the groove is far away from the first side surface of the bottom plate, and the cover plate seals and covers the groove to form a runner. The radiator has the advantages of being good in radiating effect, high in structural strength, high in assembling efficiency and the like, and automatic installation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular to a radiator, a power module, a motor controller and a vehicle. Background Art

[0002] The heat sink in the related art is usually used to fit the side of the power module to dissipate heat for the power module. The heat sink includes a base plate and a cover plate, which need to be clamped by a fixture and then welded. The structure of the base plate and the cover plate is relatively complex, the positioning and assembly steps are cumbersome, the assembly difficulty is high, and it is not conducive to automatic installation. In addition, the flow channel structure of the coolant between the cover plate and the base plate is relatively complex, which is not only cumbersome to process but also not conducive to the circulation of the coolant in the flow channel. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a radiator, which has the advantages of good heat dissipation effect, high structural strength and high assembly efficiency, and is conducive to automatic installation.

[0004] The utility model also provides a power module having the radiator.

[0005] The utility model also proposes a motor controller having the power module.

[0006] The utility model also provides a vehicle with the motor controller.

[0007] In order to achieve the above-mentioned purpose, according to the first aspect embodiment of the utility model, a heat sink is proposed, including: a base plate, the first side of the base plate is suitable for fitting to the power module; and a cover plate, the cover plate is connected to the base plate; wherein the base plate is provided with a groove, the bottom surface of the groove is close to the first side of the base plate, the notch of the groove is away from the first side of the base plate, and the cover plate covers the notch of the groove to form a flow channel.

[0008] The radiator according to the embodiment of the utility model has the advantages of good heat dissipation effect, high structural strength and high assembly efficiency.

[0009] According to some embodiments of the present invention, a heat dissipation protrusion is provided on the bottom surface of the groove, and one end of the heat dissipation protrusion away from the bottom surface of the groove abuts against the cover plate.

[0010] According to some embodiments of the utility model, an annular sink is further provided on the bottom plate, the annular sink is arranged around the edge of the groove, and the cover plate is connected to the annular sink.

[0011] According to some embodiments of the present invention, the cover plate does not protrude from the second side surface of the bottom plate, and the second side surface is arranged parallel to the first side surface.

[0012] According to some embodiments of the present invention, an edge of the cover plate on one side close to the groove is welded to the annular sink.

[0013] According to some embodiments of the present invention, the cover plate is in the shape of a flat plate, and the cover plate is fixedly connected to the second side surface of the bottom plate to seal the groove.

[0014] According to a second aspect of the present invention, a power module is provided, comprising: a power module; and a heat sink according to the first aspect of the present invention, wherein the heat sink is arranged on one side of the power module.

[0015] The power module according to the second aspect of the present invention, by utilizing the heat sink according to the first aspect of the present invention, has the advantages of good heat dissipation effect, high structural strength and high assembly efficiency, and is conducive to automated installation.

[0016] According to some embodiments of the utility model, there are multiple heat sinks, and the multiple heat sinks are stacked, the power module is arranged between two adjacent heat sinks, and the grooves of the multiple heat sinks are connected.

[0017] According to some embodiments of the utility model, each of the radiators is provided with a first liquid port and a second liquid port connected to the groove on one side facing the adjacent radiator, the first liquid ports of two adjacent radiators are arranged opposite to each other and connected, the second liquid ports of two adjacent radiators are arranged opposite to each other and connected, and the radiator located at one end in the stacking direction is suitable for being connected to a liquid supply device.

[0018] According to some embodiments of the utility model, among two adjacent radiators, one radiator is provided with a first ring platform at the first liquid port, and the first ring platform is sealed and connected to the first liquid port in the other radiator to form a first channel; and / or, among two adjacent radiators, one radiator is provided with a second ring platform at the second liquid port, and the second ring platform is sealed and connected to the second liquid port in the other radiator to form a second channel.

[0019] According to some embodiments of the present utility model, there are two radiators, and the bottom plate is provided with the first liquid port and the second liquid port.

[0020] According to some embodiments of the utility model, there are at least three radiators, the base plates of the radiators located at both ends of the stacking direction are provided with the first liquid port and the second liquid port, and the base plate and the cover plate of the radiator located in the middle of the stacking direction are both provided with the first liquid port and the second liquid port.

[0021] According to some embodiments of the present invention, at least one of the two adjacent heat sinks is constructed with a plurality of supporting bosses, and the plurality of supporting bosses support the heat sink on the other side of the power module to form an accommodating gap.

[0022] According to some embodiments of the utility model, at least one of the multiple radiators is provided with a plurality of bolt holes, the multiple bolt holes penetrate the radiator, and at least part of the multiple bolt holes are provided on the supporting boss, and the multiple radiators are connected through the bolt holes.

[0023] According to some embodiments of the present invention, the radiator is further provided with a plurality of through holes, and the plurality of through holes penetrate the radiator, and the through holes are used for penetrating box fasteners.

[0024] According to a third aspect of the present invention, a motor controller is provided, the motor controller comprising: a box; and a power module according to the second aspect of the present invention, the power module being installed in the box.

[0025] The motor controller described in the third aspect embodiment of the utility model, by utilizing the power module described in the second aspect embodiment of the utility model, has the advantages of good heat dissipation effect, high structural strength and high assembly efficiency, and is conducive to automated installation.

[0026] According to a fourth aspect of the present utility model, a vehicle is provided. The vehicle includes a motor controller according to the third aspect of the present utility model.

[0027] The vehicle according to the fourth aspect of the present invention, by utilizing the motor controller according to the third aspect of the present invention, has the advantages of good heat dissipation, high structural strength and high assembly efficiency, and is conducive to automated installation.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] Figure 1 is a schematic structural diagram of a power module according to an embodiment of the utility model;

[0031] Figure 2 is an exploded diagram of a power module according to an embodiment of the utility model;

[0032] Figure 3 is a schematic structural diagram of a power module according to another embodiment of the utility model;

[0033] Figure 4 is an exploded view of a power module according to another embodiment of the utility model;

[0034] Figure 5 is another exploded view of a power module according to another embodiment of the utility model;

[0035] Figure 6 is a schematic diagram of the internal structure of a power module according to an embodiment of the utility model;

[0036] Figure 7 is a schematic structural diagram of a heat sink for a power module according to an embodiment of the utility model;

[0037] Figure 8 is a schematic structural diagram of a heat dissipation protrusion of a heat sink according to an embodiment of the utility model;

[0038] Fig. 9 is a structural schematic diagram of a heat dissipation protrusion of a heat sink according to another embodiment of the utility model;

[0039] Fig.10 is a structural schematic diagram of a heat dissipation protrusion of a heat sink according to another embodiment of the utility model;

[0040] Fig.11 is a cross-sectional view of a power module according to an embodiment of the utility model;

[0041] Fig.12 is a cross-sectional view of a power module according to another embodiment of the utility model;

[0042] Fig.13 is a schematic structural diagram of a power module according to another embodiment of the utility model;

[0043] Fig.14 It is an exploded diagram of a power module according to another embodiment of the utility model.

[0044] Reference numerals:

[0045] 1. Radiator; 2. Power module;

[0046] 100, bottom plate; 110, groove; 120, heat dissipation protrusion; 130, annular sink; 140, supporting protrusion; 150, accommodation gap; 160, welded pipe;

[0047] 200, cover plate;

[0048] 300, first liquid port; 310, first ring platform; 311, first channel; 320, first sealing ring; 330, first mounting groove;

[0049] 400, second liquid port; 410, second ring platform; 411, second channel; 420, second sealing ring; 430, second mounting groove;

[0050] 500, bolt hole; 600, through hole;

[0051] 700, power module;

[0052] 800, a first radiator; 810, a second radiator; 820, an intermediate radiator. DETAILED DESCRIPTION

[0053] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0055] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0056] In the description of the present invention, "multiple" means two or more, and "several" means one or more.

[0057] The heat sink 1 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0058] like Figure 1-Figure 14As shown, the heat sink 1 according to the embodiment of the present invention includes a base plate 100 and a cover plate 200 .

[0059] The first side surface of the base plate 100 is suitable for fitting onto the power module 700, and the cover plate 200 is connected to the base plate 100; wherein the base plate 100 is provided with a groove 110, the bottom surface of the groove 110 is close to the first side surface of the base plate 100, and the notch of the groove 110 is away from the first side surface of the base plate 100, and the cover plate 200 covers the notch of the groove 110 to form a flow channel.

[0060] Among them, the base plate 100 and the cover plate 200 of the radiator 1 in the embodiment of the utility model can be attached to the power module 700, that is, the radiator 1 can use the base plate 100 to attach to the power module 700, or the radiator 1 can use the cover plate 200 to attach to the power module 700, so as to use the radiator 1 to dissipate heat and cool the power module 700, or one side of the radiator 1 is attached to a power module 700 through the base plate 100, and the other side is attached to another power module 700 through the cover plate 200, that is, one radiator 1 can dissipate heat for two power modules 700 at the same time.

[0061] The cover plate 200 and the base plate 100 can be connected by stitch welding or butt welding. A groove 110 is provided on the base plate 100. The groove wall of the groove 110 is equivalent to a boss, eliminating the limit block and making the manufacturing process simpler.

[0062] Among them, the base plate 100 can be made of materials such as copper, aluminum, copper-aluminum composite materials and copper-aluminum transition plates. When using copper-aluminum composite materials, copper-aluminum composite plates with different thickness ratios are selected for manufacturing according to their different heat dissipation requirements to reduce manufacturing costs while ensuring performance.

[0063] According to the heat sink 1 of the embodiment of the utility model, a groove 110 is provided on the base plate 100, and the first side surface of the base plate 100 is attached to the power module 700, so that the heat of the power module 700 can be transferred to the base plate 100, and transferred to the coolant in the groove 110 through the base plate 100, and then the heat of the base plate 100 can be taken away by the flow of the coolant, that is, the heat of the power module 700 can be taken away by the flow of the coolant, so that the power module 700 can be quickly cooled down.

[0064] Furthermore, by setting the groove 110 on the base plate 100, the base plate 100 can construct the groove 110 by die-casting, and the overall structural strength of the base plate 100 is higher, and the structural strength of the groove 110 can be higher, which is beneficial to improving the overall structural strength of the radiator 1. Moreover, the side wall and bottom wall area of ​​the groove 110 are larger, so that the contact area between the groove 110 and the coolant can be larger, thereby increasing the contact area between the base plate 100 and the coolant, and the heat exchange efficiency between the base plate 100 and the coolant is higher, thereby improving the heat dissipation efficiency of the radiator 1 and achieving a better heat dissipation effect.

[0065] In addition, by sealing the groove 110 with the cover plate 200, the cover plate 200 and the groove 110 can define a flow channel for the coolant to flow through, so that the heat sink 1 can also use the cover plate 200 to fit the power module 700, that is, the heat of the power module 700 can also be transferred to the cover plate 200, and transferred to the coolant in the flow channel through the cover plate 200, so as to achieve heat dissipation of the power module 700. Moreover, by sealing the groove 110 with the cover plate 200, the notch of the groove 110 can be sealed, and the connection structure of the bottom plate 100 and the cover plate 200 is simple and easy to assemble.

[0066] Thus, according to the radiator 1 of the embodiment of the utility model, the assembly steps between the cover plate 200 and the bottom plate 100 are simple, and it has the advantages of high structural strength, good heat dissipation effect and high assembly efficiency.

[0067] In some specific embodiments of the present invention, Figure 2 , Figure 4 and Figure 6 As shown, a heat dissipation protrusion 120 is provided on the bottom surface of the groove 110 , and one end of the heat dissipation protrusion 120 away from the bottom surface of the groove 110 abuts against the cover plate 200 .

[0068] In this way, when the cover plate 200 and the base plate 100 are assembled and connected, the end of the heat dissipation protrusion 120 facing the cover plate 200 will not interfere with the cover plate 200, so as to facilitate the positioning and connection and fixation between the cover plate 200 and the base plate 100. Moreover, the cover plate 200 can better fit with the base plate 100, so that the cover plate 200 can completely cover the groove 110 to ensure the sealing of the radiator 1.

[0069] In addition, after the cover plate 200 and the base plate 100 are connected, the cover plate 200 and the heat dissipation protrusion 120 can be connected, and the cover plate 200 can also transfer heat to the heat dissipation protrusion 120, and the radiator 1 can also utilize the cover plate 200 and the power module 700 to fit together to dissipate heat for the power module 700.

[0070] In addition, by setting the heat dissipation protrusion 120 in the groove 110, the heat dissipation protrusion 120 and the bottom plate 100 can be pre-assembled together or directly integrally formed, which is conducive to reducing the parts of the radiator 1, making the structure of the radiator 1 simpler, and facilitating the subsequent connection and fixation of the bottom plate 100 and the cover plate 200. Moreover, when the cover plate 200 and the bottom plate 100 are connected, since the heat dissipation protrusion 120 is set in the groove 110, the side wall of the groove 110 can protect the heat dissipation protrusion 120, that is, the cover plate 200 is not easy to interfere with the heat dissipation protrusion 120, and the heat dissipation protrusion 120 in the groove 110 will not affect the positioning between the cover plate 200 and the bottom plate 100, and the positioning connection between the cover plate 200 and the bottom plate 100 is more convenient, which is conducive to improving the assembly efficiency of the radiator 1.

[0071] In other specific embodiments of the present invention, Figure 1 and Figure 2 As shown, an annular platform 130 is further provided on the bottom plate 100 . The annular platform 130 is arranged around the edge of the groove 110 , and the cover plate 200 is connected to the annular platform 130 .

[0072] That is to say, the cross-sectional area of ​​the annular platform 130 is larger than the groove 110 . By setting the shape of the cover plate 200 to be adapted to the shape of the annular platform 130 , the cover plate 200 can be installed in the annular platform 130 to cover the groove 110 , thereby achieving sealing of the groove 110 .

[0073] Furthermore, by providing the annular sink 130, the annular sink 130 can pre-position the cover plate 200, which is beneficial to simplify the assembly steps of the cover plate 200 and the base plate 100, thereby improving the assembly efficiency of the cover plate 200 and the base plate 100. Moreover, the side wall of the annular sink 130 can limit the cover plate 200 within the large surface of the base plate 100, thereby improving the assembly reliability of the cover plate 200 and the base plate 100. The connection strength between the cover plate 200 and the base plate 100 is higher, and the cover plate 200 and the base plate 100 are less likely to separate, further improving the overall structural reliability of the radiator 1.

[0074] Furthermore, if Figure 1 As shown, the cover plate 200 does not protrude from the second side surface of the base plate 100 , and the second side surface is arranged in parallel with the first side surface, wherein the first side surface and the second side surface may be two opposite side surfaces in the thickness direction of the cover plate 200 .

[0075] For example, the second side surface of the bottom plate 100 may be coplanar with a surface of the cover plate 200 facing away from the groove 110 . In other words, the side of the cover plate 200 facing away from the groove 110 is flush with the second side surface of the bottom plate 100 .

[0076] The second side surface of the bottom plate 100 refers to a side of the bottom plate 100 where the groove 110 is disposed.

[0077] Such arrangement, on the one hand, can make the structure of the assembled base plate 100 and the cover plate 200 more regular, and the appearance of the radiator 1 more beautiful. When the radiator 1 is bonded with the cover plate 200 and the power module 700, the second side of the base plate 100 can also be bonded with the power module 700, that is, the second side of the cover plate 200 and the base plate 100 can be bonded with the power module 700 at the same time, which is beneficial to increase the bonding area between the radiator 1 and the power module 700, and the heat exchange efficiency between the power module 700 and the radiator 1 is higher. On the other hand, it can prevent the side of the cover plate 200 facing away from the groove 110 from exceeding the base plate 100, and then use the side wall of the annular sink 130 to protect the cover plate 200, avoid position interference between the cover plate 200 and other components, and the connection between the cover plate 200 and the base plate 100 is more stable and reliable.

[0078] In some specific embodiments of the present invention, the edge of the cover plate 200 on one side close to the groove 100 is welded to the annular sink 130, so that the edge of the cover plate 200 and the annular sink 130 can be sealed and connected, thereby sealing the notch of the groove 110, which can not only make the connection strength between the cover plate 200 and the base plate 100 higher, but also improve the sealing of the groove 110.

[0079] In some specific embodiments of the present invention, Figure 3-Figure 5 As shown, the cover plate 200 is in the shape of a flat plate, and the cover plate 200 is fixedly connected to the second side surface of the base plate 100 to seal the groove.

[0080] For example, the area on one side of the cover plate 200 in the thickness direction can be larger than the cross-sectional area of ​​the groove 110, that is, the edge of the cover plate 200 can be located outside the groove 110. In this way, the flat cover plate 200 can completely cover the groove 110 to improve the sealing of the radiator 1. The coolant in the groove 110 will not leak from the connection between the cover plate 200 and the base plate 100. Moreover, the structure of the base plate 100 can be set to be relatively simple, which is conducive to simplifying the processing technology of the base plate 100. The structure of the radiator 1 is simpler and the production efficiency is higher.

[0081] In addition, the shape of the cover plate 200 can be the same as the shape of one side surface of the base plate 100, so that after the cover plate 200 and the base plate 100 are connected, the edge of the cover plate 200 and the edge of the base plate 100 can remain flush, so that the structure of the radiator 1 is more regular.

[0082] In some specific embodiments of the present invention, the heat dissipation protrusion 120 and the bottom plate 100 are integrally formed.

[0083] For example, the heat dissipation protrusion 120 and the base plate 100 can be formed by integral die casting, which not only omits the solder between the base plate 100 and the heat dissipation protrusion 120, which is beneficial to cost saving, but also can greatly improve the heat transfer efficiency between the base plate 100 and the heat dissipation protrusion 120, the heat dissipation efficiency of the radiator 1 is higher, and the number of parts of the radiator 1 can be reduced, which is beneficial to improving the assembly efficiency of the radiator 1.

[0084] In some specific embodiments of the present invention, Figure 2 , Figure 4 , Figure 6 , there are multiple heat dissipation protrusions 120, and the multiple heat dissipation protrusions 120 are arranged in rows and / or columns. In this way, the coolant flowing through the radiator 1 can exchange heat with the multiple heat dissipation protrusions 120 respectively, thereby increasing the contact area between the heat dissipation protrusions 120 and the coolant, that is, increasing the heat exchange area between the radiator 1 and the coolant, and the heat dissipation efficiency of the radiator 1 is higher, and the radiator 1 can be used to dissipate heat and cool the power module 700 more quickly.

[0085] Among them, the heat dissipation protrusions 120 can also be distributed in regions, that is, multiple rows and / or columns of heat dissipation protrusions 120 can be set in one region, and multiple rows and / or columns of heat dissipation protrusions 120 can also be set in another region, and the two regions are arranged at intervals, and the distance between the heat dissipation protrusions 120 in adjacent regions is greater than the distance between the heat dissipation protrusions 120 in the same region.

[0086] In some specific embodiments of the present invention, Figure 8-Figure 10 As shown, the heat dissipation protrusion 120 is configured as a heat dissipation column, and the cross-sectional shape of the heat dissipation column is circular, prismatic or elliptical. The heat dissipation column extends along the depth direction of the groove 110.

[0087] Among them, the cross-sectional shape of some of the heat dissipation protrusions 120 can be configured as a circle, the cross-sectional shape of some of the heat dissipation protrusions 120 can be configured as a prism, and the cross-sectional shape of some of the heat dissipation protrusions 120 can be configured as an ellipse, that is, the shapes of the multiple heat dissipation protrusions 120 in the same heat sink 1 can be configured as different shapes. Of course, the shapes of the multiple heat dissipation protrusions 120 in the same heat sink 1 can also be configured as the same shape.

[0088] In some other specific embodiments of the present invention, the heat dissipation protrusion 120 is configured as a heat sink, and the heat sink is configured in a straight line, a curve, or a broken line.

[0089] Among them, in an embodiment of the utility model, the liquid inlet and the liquid outlet of the radiator 1 are respectively located at the two ends of the length direction of the groove 110, that is, they are respectively adjacent to the two ends of the length direction of the base plate 100, and the flow direction of the coolant is along the length direction of the groove 110, and the heat sink extends along the flow direction of the coolant.

[0090] That is, the heat sink extends along the length direction of the groove 110. This arrangement can prevent the heat sink from excessively blocking the flow of the coolant, so that the coolant can flow more smoothly in the radiator 1. In addition, by configuring the heat sink to be linear, the flow of the coolant can be smoother, avoiding blockage of the coolant in the radiator 1.

[0091] In addition, by constructing the heat sink into a curved or broken line shape, the flow resistance of the coolant in the radiator 1 can be increased, the flow speed of the coolant in the radiator 1 can be slowed down, and the length of the flow path of the coolant in the radiator 1 can be extended, so that the coolant can fully exchange heat with the heat dissipation protrusion 120, the base plate 100 and the cover plate 200, and the heat exchange between the coolant and the radiator 1 is more sufficient.

[0092] In some specific embodiments of the present invention, the bottom plate 100 is connected to the cover plate 200 by welding; and / or, the bottom plate 100 and the cover plate 200 are fixedly connected by fasteners.

[0093] For example, the base plate 100 and the cover plate 200 can be welded by laser welding and brazing, and the base plate 100 and the cover plate 200 can be connected only by welding, or the base plate 100 and the cover plate 200 can be fixedly connected only by fasteners, or the base plate 100 and the cover plate 200 can be simultaneously connected by welding and by fasteners to ensure a reliable connection between the base plate 100 and the cover plate 200, which is beneficial to improving the structural strength of the radiator 1 and making the radiator 1 more sealed.

[0094] The power module 2 according to an embodiment of the present utility model is described below with reference to the accompanying drawings.

[0095] like Figure 1-Figure 6 , Fig.13 and Fig.14 As shown, the power module 2 includes a power module 700 and a heat sink 1 according to the above embodiment of the utility model. The heat sink 1 is arranged on one side of the power module 700. In this way, the power module 700 can transfer heat to the heat sink 1, and then the heat sink 1 can be used to dissipate heat and cool the power module 700.

[0096] The power module 2 according to the embodiment of the utility model, by utilizing the heat sink 1 according to the above embodiment of the utility model, has the advantages of simple structure, high structural strength and high assembly efficiency, and is conducive to automated installation.

[0097] In some specific embodiments of the present invention, Figure 1-Figure 6 , Fig.13 and Fig.14 As shown, there are multiple heat sinks 1, and the multiple heat sinks 1 are stacked, a power module 700 is arranged between two adjacent heat sinks 1, and the grooves 110 of the multiple heat sinks 1 are connected.

[0098] Thus, a radiator 1 can be arranged on the opposite sides of each power module 700 to improve the heat dissipation efficiency of the power module 700, and the grooves 110 between adjacent radiators 1 remain connected, that is, the multiple radiators 1 of the power module 2 can remain connected, so that the grooves 110 in the multiple radiators 1 are connected to form a water path, and the coolant can flow through the multiple radiators 1 in sequence and perform heat exchange with the power module 700 through the multiple radiators 1. This arrangement can not only simplify the water path structure in the radiator 1 of the power module 2, but also make full use of the coolant for heat exchange with the power module 700.

[0099] In some specific embodiments of the present invention, Figure 2 , Figure 4 and Fig.14 As shown, each radiator 1 is provided with a first liquid port 300 and a second liquid port 400 connected to the groove 110 on one side facing the adjacent radiator 1, the first liquid ports 300 of two adjacent radiators 1 are arranged opposite to each other and connected, the second liquid ports 400 of two adjacent radiators 1 are arranged opposite to each other and connected, and the radiator 1 located at one end of the stacking direction is suitable for connection with a liquid supply device.

[0100] It can be understood that one of the first liquid port 300 and the second liquid port 400 of the same radiator 1 is used for liquid inlet, and the other is used for liquid outlet. For example, the cooling liquid can enter the groove 110 from the first liquid port 300 and flow out of the groove 110 from the second liquid port 400, or the cooling liquid can enter the groove 110 from the second liquid port 400 and flow out of the groove 110 from the first liquid port 300.

[0101] In addition, the radiator 1 located at the bottom can be provided with a welding pipe 160, which is welded to the liquid inlet and outlet of the radiator 1, and the welding pipe 160 is supported between the power module 2 and the box of the motor controller to support the power module 2, and the welding pipe 160 is constructed with a channel to connect the liquid supply device and the radiator 1.

[0102] In addition, it should be noted that the liquid inlet connected to the liquid supply device needs to be staggered with the first liquid port 300. For example, the first liquid port 300 and the liquid inlet partially overlap in the length direction of the radiator 1 and are staggered in another part. This can avoid the coolant supplied by the liquid supply device from colliding with the first liquid port 300, and avoid the coolant from directly entering the next radiator 1 through the first liquid port 300.

[0103] For example, Figure 1-Figure 6 As shown, there are two radiators 1, for example, one is a first radiator 800 and the other is a second radiator 810, the first radiator 800 is connected to the liquid supply device and is located on one side of the power module 700, and the second radiator 810 is located on the other side of the liquid supply device, so that the liquid supply device can supply coolant to the first radiator 800, part of the coolant flows through the first radiator 800 and flows out from the liquid outlet of the first radiator 800, and another part of the coolant can flow from the first liquid port 300 of the first radiator 800 and the first liquid port 300 of the second radiator 810 into the groove 110 of the second radiator 810, and then after the part of the coolant flows through the second radiator 810, it flows back to the first radiator 800 from the second liquid port 400 of the second radiator 810 and the second liquid port 400 of the first radiator 800, and finally flows out from the liquid outlet of the first radiator 800, completing the flow of coolant of the power module 2.

[0104] In addition, when there are two radiators 1, the base plate 100 is provided with a first liquid port 300 and a second liquid port 400. It can be understood that when there are two radiators 1, the two radiators 1 are arranged on opposite sides of the same power module 700, that is, the base plates 100 of the two radiators 1 are respectively attached to opposite sides of the same radiator 1, and the base plates 100 of the two radiators 1 are arranged opposite to each other and the distance between the base plates 100 is relatively close. By providing the first liquid port 300 and the second liquid port 400 on the base plates 100 of the two radiators 1, the first liquid ports 300 of the two radiators 1 are relatively close to each other, which is convenient for communication with each other, and the second liquid ports 400 of the two radiators 1 are relatively close to each other, which is convenient for communication with each other.

[0105] In other specific embodiments of the present invention, Fig.13 and Fig.14 As shown, there are at least three heat sinks 1, and the bottom plates 100 of the heat sinks 1 at both ends of the stacking direction are provided with the first liquid port 300 and the second liquid port 400, and the bottom plate 100 and the cover plate 200 of the heat sink 1 located in the middle of the stacking direction are both provided with the first liquid port 300 and the second liquid port 400. In this way, the heat sink 1 located in the middle of the stacking direction can be connected with the groove 110 of the heat sink 1 on one side through the first liquid port 300 and the second liquid port 400 on the bottom plate 100, and can be connected with the groove 110 of the heat sink 1 on the other side through the first liquid port 300 and the second liquid port 400 on the cover plate 200.

[0106] For example, there are three radiators 1, namely the first radiator 800, the second radiator 810 and the middle radiator 820. The first radiator 800 and the second radiator 810 are respectively located on both sides of the stacking direction, that is, the middle radiator 820 is located between the first radiator 800 and the second radiator 810. A power module 700 is provided between one side of the first radiator 800 and the middle radiator 820. The first radiator 800 is connected to the liquid supply device, and another power module 700 is provided between the second radiator 810 and the middle radiator 820.

[0107] At this time, the liquid supply device can supply coolant to the first radiator 800, and the coolant is divided into two parts in the first radiator 800 (for example, the coolant is divided into a first part of coolant and a second part of coolant in the first radiator 800), the first part of coolant flows through the first radiator 800 and then flows out from the liquid outlet of the first radiator 800, while the second part of coolant flows from the first liquid port 300 of the first radiator 800 and the first liquid port 300 of the intermediate radiator 820 into the groove 110 of the intermediate radiator 820, and then the second part of coolant is divided into two parts in the intermediate radiator 820 (for example, the second part of coolant is divided into a third part of coolant and a fourth part of coolant in the intermediate radiator 820), and the third part of coolant flows out from the liquid outlet of the first radiator 800. After flowing through the intermediate radiator 820, part of the coolant flows back to the first radiator 800 from the second liquid port 400 of the intermediate radiator 820 and the second liquid port 400 of the first radiator 800, and flows out from the liquid outlet of the first radiator 800, while the fourth part of the coolant flows into the groove 110 of the second radiator 810 from the first liquid port 300 of the intermediate radiator 820 and the first liquid port 300 of the second radiator 810, and after flowing through the second radiator 810, flows back to the intermediate radiator 820 from the second liquid port 400 of the second radiator 810 and the second liquid port 400 of the intermediate radiator 820, then flows back to the first radiator 800, and flows out from the liquid outlet of the first radiator 800, completing the flow of coolant in the power module 2.

[0108] It should be noted that when the number of radiators 1 is more than three, that is, the number of intermediate radiators 820 is multiple, the flow paths of the coolant in the multiple intermediate radiators 820 are the same, that is, the coolant in each intermediate radiator 820 will be divided into two paths, one path of coolant flows through the radiator 1 and then flows back to the first radiator 800, while the other path of coolant continues to flow backward to the next radiator 1.

[0109] In some specific embodiments of the present invention, Figure 4As shown, among two adjacent radiators 1, one radiator 1 is provided with a first ring platform 310 at the first liquid port 300, and the first ring platform 310 is sealed and connected to the first liquid port 300 in the other radiator 1 to form a first channel 311; and / or, among two adjacent radiators 1, one radiator 1 is provided with a second ring platform 410 at the second liquid port 400, and the second ring platform 410 is sealed and connected to the second liquid port 400 in the other radiator 1 to form a second channel 411.

[0110] By setting the first ring platform 310 and the second ring platform 410, the first ring platform 310 and the second ring platform 410 can be used to connect two adjacent heat sinks 1 so that the grooves 110 of the two adjacent heat sinks 1 remain connected, and the first ring platform 310 and the second ring platform 410 can separate the two heat sinks 1 to facilitate the arrangement of the power module 700 between the two heat sinks 1.

[0111] Furthermore, the first ring stage 310 can be welded to the first liquid port 300 of another radiator 1, such as by brazing or laser welding, and the second ring stage 410 can be welded to the second liquid port 400 of another radiator 1, so that two adjacent radiators 1 can be connected together and the first liquid port 300 and the second liquid port 400 can be sealed.

[0112] In addition, the first ring stage 310 can extend into the first liquid port 300 of another heat sink 1, and the second ring stage 410 can extend into the second liquid port 400 of another heat sink 1, so that the first ring stage 310 and the second ring stage 410 can pre-position the assembly of the two heat sinks 1, further simplifying the assembly of the power module 2.

[0113] In some specific embodiments of the present invention, Figure 5 As shown, the power module 2 also includes a first sealing ring 320, the heat sink 1 is provided with a first mounting groove 330 around the first liquid port 300, and the first sealing ring 320 is arranged in the first mounting groove 330 to seal the surrounding area of ​​the first liquid port 300; and / or, the power module 2 also includes: a second sealing ring 420, the heat sink 1 is provided with a second mounting groove 430 around the second liquid port 400, and the second sealing ring 420 is arranged in the second mounting groove 430 to seal the surrounding area of ​​the second liquid port 400.

[0114] In this way, the first sealing ring 320 can seal the first liquid port 300, and the second sealing ring 420 can seal the second liquid port 400. The sealing structure is simpler and the sealing is more reliable.

[0115] In addition, a first mounting groove 330 is set around the first liquid port 300 of one radiator 1 to fix the first sealing ring 320. At this time, a sealing groove and other structures can be set around the first liquid port 300 of another radiator 1 to correspond to the first sealing ring 320, so as to improve the sealing effect of the first sealing ring 320 on the first liquid port 300; similarly, a second mounting groove 430 is set around the second liquid port 400 of another radiator 1 to fix the second sealing ring 420. At this time, a sealing groove and other structures can be set around the second liquid port 400 of another radiator 1 to correspond to the second sealing ring 420, so as to improve the sealing effect of the second sealing ring 420 on the second liquid port 400.

[0116] In some specific embodiments of the present invention, Figure 1 , Figure 4 and Figure 5 As shown, at least one of the two adjacent heat sinks 1 is constructed with a plurality of supporting bosses 140, and the plurality of supporting bosses 140 support the heat sink 1 on the other side of the power module 700 to form a receiving gap 150. In this way, the two adjacent heat sinks 1 will not be tightly attached to each other after assembly, and the power module 700 can be installed in the receiving gap 150, thereby preventing the two adjacent heat sinks 1 from damaging the power module 700.

[0117] Furthermore, if Figure 1-Figure 7 As shown, at least one of the multiple heat sinks 1 is provided with multiple bolt holes 500 , the multiple bolt holes 500 penetrate the heat sink 1 , and at least part of the multiple bolt holes 500 are provided on the supporting boss 140 , and the multiple heat sinks 1 are connected through the bolt holes 500 .

[0118] For example, a heat sink 1 on the outside of the stacking direction of the multiple heat sinks 1 can be provided with a plurality of bolt holes 500, while the other heat sinks 1 are provided with a plurality of fixing holes, no threads are provided in the fixing holes, and the multiple fixing holes and the multiple bolt holes 500 of each heat sink 1 correspond one to one. At this time, fasteners can be used to penetrate the fixing holes and bolt holes 500 corresponding to the multiple heat sinks 1, and the fasteners and the bolt holes 500 are screwed together to achieve fixation between the multiple heat sinks 1, thereby realizing the assembly of the power module 2 itself.

[0119] Furthermore, it is understandable that the height of the support boss 140 will be higher than the rest of the radiator 1. By providing a plurality of bolt holes 500 on the support boss 140, the depth of the bolt hole 500 can be deeper, that is, the thread depth of the bolt hole 500 can be deeper, so that the threaded connection between the fastener and the bolt hole 500 is more stable and reliable.

[0120] In some specific embodiments of the present invention, Figure 1-Figure 7As shown, the radiator 1 is further provided with a plurality of through holes 600 , which penetrate the radiator 1 , and the through holes 600 are used for passing box fasteners.

[0121] Among them, it should be noted that the box fasteners are used to connect the power module 2 and the box of the motor controller together. By setting a plurality of through holes 600 on the radiator 1, the box fasteners can be sequentially penetrated through the through holes 600 of the plurality of radiators 1 and then screwed to the box, thereby realizing the connection and fixation of the plurality of radiators 1 and the box of the motor controller, that is, realizing the connection and fixation of the power module 2 and the box of the motor controller.

[0122] It should be noted that if Figure 7 As shown, the heat sink 1 is provided with a plurality of bolt holes 500 and a plurality of through holes 600, wherein the positions of the bolt holes 500 and through holes 600 shown in the figure are not unique, that is, Figure 7 The positions of the middle bolt hole 500 and the through hole 600 can be swapped according to actual conditions.

[0123] The motor controller according to the embodiment of the present utility model is described below with reference to the accompanying drawings. The motor controller includes a box body and a power module 2 according to the above embodiment of the present utility model. The power module 2 is installed in the box body.

[0124] The motor controller according to the embodiment of the utility model, by utilizing the power module 2 according to the above embodiment of the utility model, has the advantages of simple structure, convenient positioning and installation, high assembly efficiency, etc., and is conducive to automated installation.

[0125] A vehicle according to an embodiment of the present invention will be described below with reference to the accompanying drawings. The vehicle includes a motor controller according to the above embodiment of the present invention.

[0126] The vehicle according to the embodiment of the utility model has the advantages of simple structure, convenient positioning and installation, high assembly efficiency, etc. by utilizing the motor controller according to the above-mentioned embodiment of the utility model, which is conducive to automated installation.

[0127] The radiator 1, the power module 2, the motor controller and other components and operations of the vehicle according to the embodiment of the utility model are known to ordinary technicians in this field and will not be described in detail here.

[0128] In the description of this specification, the description with reference to the terms "specific embodiment", "specific example", etc. 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 utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0129] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A radiator, characterized in that: include: A bottom plate, wherein the first side surface of the bottom plate is suitable for being attached to the power module; A cover plate connected to the bottom plate; The bottom plate is provided with a groove, the bottom surface of the groove is close to the first side surface of the bottom plate, the notch of the groove is away from the first side surface of the bottom plate, and the cover plate covers the notch of the groove to form a flow channel.

2. The heat sink according to claim 1, characterized in that: A heat dissipation protrusion is provided on the bottom surface of the groove, and one end of the heat dissipation protrusion away from the bottom surface of the groove abuts against the cover plate.

3. The heat sink according to claim 1, characterized in that: The bottom plate is also provided with an annular sinking platform, which is arranged around the edge of the groove, and the cover plate is connected to the annular sinking platform.

4. The heat sink according to claim 3, characterized in that: The cover plate does not protrude from the second side surface of the bottom plate, and the second side surface is arranged parallel to the first side surface.

5. The heat sink according to claim 3, characterized in that: The edge of the cover plate on one side close to the groove is welded to the annular sink.

6. The heat sink according to claim 1, characterized in that The cover plate is in the shape of a flat plate and is fixedly connected to the second side surface of the bottom plate to seal the groove.

7. A power module, characterized in that: include: Power module; The heat sink according to any one of claims 1 to 6, wherein the heat sink is disposed on one side of the power module.

8. The power module according to claim 7, characterized in that: There are a plurality of heat sinks, and the plurality of heat sinks are stacked and arranged, and the power module is arranged between two adjacent heat sinks, and the grooves of the plurality of heat sinks are connected.

9. The power module according to claim 8, characterized in that: Each of the radiators is provided with a first liquid port and a second liquid port connected to the groove on one side facing the adjacent radiator, the first liquid ports of two adjacent radiators are arranged opposite to each other and connected, the second liquid ports of two adjacent radiators are arranged opposite to each other and connected, and the radiator located at one end of the stacking direction is suitable for being connected to a liquid supply device.

10. The power module according to claim 9, characterized in that: Among the two adjacent radiators, one of the radiators is provided with a first ring platform at the first liquid port, and the first ring platform is sealedly connected with the first liquid port in the other radiator to form a first channel; and / or Among the two adjacent radiators, one of the radiators is provided with a second ring platform at the second liquid port, and the second ring platform is sealedly connected to the second liquid port in the other radiator to form a second channel.

11. The power module according to claim 9, characterized in that: There are two radiators, and the bottom plate is provided with the first liquid port and the second liquid port.

12. The power module according to claim 9, characterized in that: There are at least three radiators, the base plates of the radiators at both ends of the stacking direction are provided with the first liquid port and the second liquid port, and the base plate and the cover plate of the radiator located in the middle of the stacking direction are both provided with the first liquid port and the second liquid port.

13. The power module according to claim 8, characterized in that: At least one of the two adjacent heat sinks is configured with a plurality of supporting bosses, and the plurality of supporting bosses support the heat sink on the other side of the power module to form an accommodating gap.

14. The power module according to claim 13, characterized in that: At least one of the plurality of heat sinks is provided with a plurality of bolt holes, the plurality of bolt holes penetrate the heat sink, and at least part of the plurality of bolt holes is provided on the supporting boss, and the plurality of heat sinks are connected via the bolt holes.

15. The power module according to claim 8, characterized in that: The radiator is also provided with a plurality of through holes, which penetrate through the radiator and are used for penetrating box fasteners.

16. A motor controller, characterized in that: include: Box; According to any one of claims 7 to 15, the power module is installed in the box.

17. A vehicle, characterized in that: Comprising a motor controller according to claim 16.

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