Power module assembly and power equipment

Abstract

The utility model discloses a power module assembly and a power device, the power module assembly comprises a first power module and a second power module, the first power module and the second power module are respectively arranged on two sides of a substrate in the thickness direction, and the first power module and the second power module work independently; wherein a first flow channel and a second flow channel are formed in the substrate, and the first flow channel is used for circulating a cooling medium in the first flow channel when the first power module works so as to perform heat exchange on the first power module; and the second flow channel is used for circulating a cooling medium inside when the second power module works so as to perform heat exchange on the second power module. According to the power module assembly provided by the utility model, the first flow channel independently exchanges heat with the first power module when the first power module works, and the second flow channel independently exchanges heat with the second power module when the second power module works, so that the first power module and the second power module can independently work or work together; and the stability and the reliability of the power equipment during operation are improved.

Description

Technical Field

[0001] The utility model relates to the field of power modules, in particular to a power module component and a power device. Background Art

[0002] In the related technologies, with the development of new energy vehicles and their widespread popularization and application, more applicable dual-motor vehicles are gradually becoming a trend. The dual motors need to be controlled separately by two power modules. In the prior art, the two power modules controlling the dual motors cannot work independently and can only control the motors at the same time. At the same time, the two power modules share the same water channel and affect each other. When one of the power modules fails, the other power module cannot work normally, which seriously affects the reliability and stability of the power module components. 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 power module assembly. According to the power module assembly of the utility model, when the first power module is working, the first flow channel exchanges heat with the first module alone, and when the second power module is working, the second flow channel exchanges heat with the second power module alone, so that the first power module and the second power module can work independently or together, thereby improving the stability and reliability of the power equipment during operation.

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

[0005] According to the utility model, the power module assembly includes: a substrate; 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 substrate in the thickness direction, and the first power module and the second power module respectively work independently; wherein a first flow channel and a second flow channel are formed inside the substrate, wherein the first flow channel corresponds to the first power module and is used for circulating a cooling medium inside the first power module to exchange heat for the first power module when the first power module is working; and the second flow channel corresponds to the second power module and is used for circulating a cooling medium inside the second power module to exchange heat for the second power module when the second power module is working.

[0006] According to the utility model, a power module assembly is provided with a first flow channel and a second flow channel which are independently arranged inside a substrate. The first flow channel is arranged corresponding to the first power module. When the first power module is working, a cooling medium flows inside the first flow channel to exchange heat with the first power module, and the cooling medium does not flow through the second flow channel. The second flow channel is arranged corresponding to the second power module. When the second power module is working, a cooling medium flows inside the second flow channel to exchange heat with the second power module, and the cooling medium does not flow through the first flow channel. The decoupling of the first power module and the second power module is achieved, so that the first power module and the second power module can work independently or work together. When the first power module and the second power module work independently, they do not interfere with each other, thereby improving the stability and reliability of the power equipment during operation.

[0007] According to one embodiment of the utility model, the first power module is constructed in plurality, and first heat exchange channels corresponding to the plurality of the first power modules are formed in the first channel, and the plurality of the first heat exchange channels are arranged in parallel with each other; the second power module is constructed in plurality, and second heat exchange channels corresponding to the plurality of the second power modules are formed in the second channel, and the plurality of the second heat exchange channels are arranged in parallel with each other.

[0008] According to one embodiment of the utility model, the first flow channel includes: a first branch flow channel, which is arranged on one side in the width direction of the substrate; a second branch flow channel, which is arranged on the other side in the width direction of the substrate, wherein a plurality of the first heat exchange flow channels are arranged between the first branch flow channel and the second branch flow channel at intervals, and a plurality of the first heat exchange flow channels respectively connect the first branch flow channel with the second branch flow channel; the second flow channel includes: a third branch flow channel, which is arranged opposite to the first branch flow channel in the thickness direction of the substrate shown; a fourth branch flow channel, which is arranged opposite to the third branch flow channel in the width direction of the substrate and opposite to the second branch flow channel in the thickness direction of the substrate, wherein a plurality of the second heat exchange flow channels are arranged between the third branch flow channel and the fourth branch flow channel at intervals, and a plurality of the second heat exchange flow channels respectively connect the third branch flow channel with the fourth branch flow channel.

[0009] According to an embodiment of the utility model, a first groove and a second groove recessed toward the inside of the substrate are respectively formed on both sides of the substrate in the thickness direction, the first groove defines the first heat exchange channel, and the second groove defines the second heat exchange channel.

[0010] According to one embodiment of the utility model, a first connecting hole and a second connecting hole connected to the first branch flow path and the second branch flow path are respectively formed on both sides of the bottom wall of the first groove in the width direction; a third connecting hole and a fourth connecting hole connected to the third branch flow path and the fourth branch flow path are respectively formed on both sides of the bottom wall of the second groove in the width direction.

[0011] According to one embodiment of the utility model, the first connecting hole is configured as a strip hole and has the same extension direction as the first branch flow path; the second connecting hole is configured as a strip hole and has the same extension direction as the second branch flow path; the third connecting hole is configured as a strip hole and has the same extension direction as the third branch flow path; the fourth connecting hole is configured as a strip hole and has the same extension direction as the fourth branch flow path.

[0012] According to one embodiment of the utility model, the power module assembly also includes: a first heat sink, the first heat sink and the first slot are configured in a one-to-one correspondence, the first heat sink is arranged on the substrate and is suitable for closing the first slot, the first heat sink and the first power module are configured in a one-to-one correspondence, the first power module is arranged on the first heat sink and is suitable for heat exchange with the first heat sink; a second heat sink, the second heat sink and the second slot are configured in a one-to-one correspondence, the second heat sink is arranged on the substrate and is suitable for closing the second slot, the second heat sink and the second power module are configured in a one-to-one correspondence, the second power module is arranged on the second heat sink and is suitable for heat exchange with the second heat sink.

[0013] According to one embodiment of the utility model, heat sinks are respectively arranged in the first heat sink and the second heat sink, the heat sink on the first heat sink extends into the first groove to perform heat exchange with the first heat exchange channel, and the heat sink on the second heat sink extends into the second groove to perform heat exchange with the second heat exchange channel.

[0014] According to one embodiment of the utility model, each of the first power modules is provided with a first signal terminal, and the extension direction of the first signal terminal is perpendicular to the thickness direction of the substrate; each of the second power modules is provided with a second signal terminal, and the extension direction of the second signal terminal is perpendicular to the thickness direction of the substrate.

[0015] The power equipment according to the utility model is briefly described below.

[0016] The power equipment according to the utility model is provided with a power module assembly as described in any one of the above embodiments. Since the power equipment according to the utility model is provided with a power module assembly as described in any one of the above embodiments, the stability and reliability of the power equipment according to the present application during operation are higher.

[0017] 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

[0018] 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:

[0019] Figure 1 is a schematic structural diagram of a power module assembly according to an embodiment of the utility model;

[0020] Figure 2 is a top view of a power module assembly according to an embodiment of the utility model;

[0021] Figure 3 is a front view of a power module assembly according to an embodiment of the utility model;

[0022] Figure 4 It is a schematic diagram of the internal structure of a substrate of a power module assembly according to an embodiment of the utility model;

[0023] Figure 5 is a top view of a substrate according to an embodiment of the utility model;

[0024] Figure 6 It is a side view of a substrate according to an embodiment of the utility model.

[0025] Reference numerals:

[0026] 100. Power module assembly;

[0027] 11, substrate; 101, first groove; 102, second groove; 111, first branch flow path; 112, second branch flow path;

[0028] 113, third branch flow path; 114, fourth branch flow path; 1011, first communication hole; 1012, second communication hole;

[0029] 1013, third connecting hole; 1014, fourth connecting hole;

[0030] 12. First power module; 21. First signal terminal; 22. First DC terminal; 23. First AC terminal;

[0031] 13. Second power module; 31. Second signal terminal; 32. Second DC terminal; 33. Second AC terminal;

[0032] 14. A first heat sink; 15. A second heat sink. DETAILED DESCRIPTION

[0033] 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.

[0034] In the related technologies, with the development of new energy vehicles and their widespread popularization and application, more applicable dual-motor vehicles are gradually becoming a trend. The dual motors need to be controlled separately by two power modules. In the prior art, the two power modules controlling the dual motors cannot work independently and can only control the motors at the same time. At the same time, the two power modules share the same water channel and affect each other. When one of the power modules fails, the other power module cannot work normally, which seriously affects the reliability and stability of the power module components.

[0035] Reference below Figure 1-Figure 6 A power module assembly according to an embodiment of the present invention is described.

[0036] According to the utility model, the power module assembly 100 includes: a substrate 11, a first power module 12 and a second power module 13, wherein the first power module 12 and the second power module 13 are respectively arranged on both sides of the substrate 11 in the thickness direction, and the first power module 12 and the second power module 13 work independently; wherein a first flow channel and a second flow channel are formed inside the substrate 11, wherein the first flow channel corresponds to the first power module 12 and is used for circulating a cooling medium inside the first power module 12 to exchange heat for the first power module 12 when the first power module 12 is working; and the second flow channel corresponds to the second power module 13 and is used for circulating a cooling medium inside the second power module 13 to exchange heat for the second power module 13 when the second power module 13 is working.

[0037] In some specific embodiments, the power module assembly 100 is composed of a substrate 11, a first power module 12 and a second power module 13. The first power module 12 is arranged on one side of the substrate 11 in the thickness direction, and the second power module 13 is arranged on the other side of the substrate 11 in the thickness direction. The first power module 12 and the second power module 13 are mirror-arranged with the substrate 11 as the center. This arrangement makes the structure of the power module assembly 100 more compact, reduces the volume of the power module assembly 100 in the width or length direction of the substrate 11, and makes the space occupied by the power module smaller. The first power module 12 and the second power module 13 can work independently and together. A first flow channel and a second flow channel are formed inside the substrate 11. The first flow channel and the second flow channel are independently arranged and have different inlets and outlets. The first flow channel is arranged corresponding to the first power module 12. When the first power module 12 is working, a cooling medium flows inside the first flow channel to exchange heat for the first power module 12, and the second flow channel does not flow the cooling medium; the second flow channel is arranged corresponding to the second power module 13. When the second power module 13 is working, a cooling medium flows inside the second flow channel to exchange heat for the second power module 13, and the first flow channel does not flow the cooling medium; through this flow channel arrangement method, the first flow channel and the second flow channel do not interfere with each other, and the decoupling of the first power module 12 and the second power module 13 is achieved, so that the first power module 12 and the second power module 13 can work independently or work together, and the first power module 12 and the second power module 13 do not interfere with each other when they work independently, thereby improving the stability and reliability of the power equipment during operation.

[0038] According to the power module assembly 100 of the utility model, a first flow channel and a second flow channel independently set up are formed inside the substrate 11. The first flow channel is set corresponding to the first power module 12. When the first power module 12 is working, a cooling medium flows inside the first flow channel to exchange heat with the first power module 12, and the second flow channel does not flow cooling medium; the second flow channel is set corresponding to the second power module 13. When the second power module 13 is working, a cooling medium flows inside the second flow channel to exchange heat with the second power module 13, and the first flow channel does not flow cooling medium, thereby realizing the decoupling of the first power module 12 and the second power module 13, so that the first power module 12 and the second power module 13 can work independently or work together, and the first power module 12 and the second power module 13 do not interfere with each other when they work independently, thereby improving the stability and reliability of the power equipment during operation.

[0039] According to an embodiment of the present utility model, the first power module 12 is constructed in multiple configurations, and first heat exchange channels corresponding to the multiple first power modules 12 are formed in the first channel, and the multiple first heat exchange channels are arranged in parallel with each other;

[0040] The second power modules 13 are structured in multiple numbers, and second heat exchange channels corresponding to the multiple second power modules 13 are formed in the second channel. The multiple second heat exchange channels are arranged in parallel with each other.

[0041] In some specific embodiments, the first power module 12 can be constructed into three, and three first heat exchange channels can be formed in the first channel. The three first heat exchange channels are arranged in a one-to-one correspondence with the three first power modules 12. The three first heat exchange channels are arranged in parallel with each other, so that the three first heat exchange channels can perform heat exchange on the three first power modules 12 at the same time, so that the temperature difference between the three first power modules 12 is smaller, the temperature between the three first power modules 12 is more balanced, and the heat exchange effect of the power module assembly 100 is improved.

[0042] In addition, the second power module 13 can be constructed into three, and three second heat exchange channels can be formed in the second channel. The three second heat exchange channels are arranged in a one-to-one correspondence with the three second power modules 13. The three second heat exchange channels are arranged in parallel with each other, so that the three second heat exchange channels can perform heat exchange on the three second power modules 13 at the same time, so that the temperature difference between the three second power modules 13 is smaller, the temperature between the three second power modules 13 is more balanced, and the heat exchange effect of the power module assembly 100 is improved.

[0043] According to an embodiment of the utility model, the first flow channel includes: a first branch flow channel 102 second groove; 111 and a second branch flow channel 112, the first branch flow channel 102 second groove; 111 is arranged on one side in the width direction of the substrate 11; the second branch flow channel 112 is arranged on the other side in the width direction of the substrate 11, wherein a plurality of first heat exchange flow channels are arranged between the first branch flow channel 102 second groove; 111 and the second branch flow channel 112 at intervals, and the plurality of first heat exchange flow channels respectively connect the first branch flow channel 102 second groove; 111 with the second branch flow channel 112;

[0044] The second flow channel includes: a third branch flow channel 113 and a fourth branch flow channel 114, the third branch flow channel 113 is arranged opposite to the second groove 111 of the first branch flow channel 102 in the thickness direction of the substrate 11 shown; the fourth branch flow channel 114 is arranged opposite to the third branch flow channel 113 in the width direction of the substrate 11 and opposite to the second branch flow channel 112 in the thickness direction of the substrate 11, wherein a plurality of second heat exchange flow channels are arranged between the third branch flow channel 113 and the fourth branch flow channel 114 at intervals, and a plurality of second heat exchange flow channels respectively connect the third branch flow channel 113 with the fourth branch flow channel 114.

[0045] In some specific embodiments, a first branch channel 102 second groove; 111 and a second branch channel 112 are provided in the first channel, and the first branch channel 102 second groove; 111 and the second branch channel 112 are respectively provided on both sides in the width direction of the substrate 11, and a plurality of first heat exchange channels are provided between the first branch channel 102 second groove; 111 and the second branch channel 112, and the plurality of first heat exchange channels are spaced apart from each other, and the plurality of first heat exchange channels respectively connect the first branch channel 102 second groove; 111 with the second branch channel 112, and the cooling medium flowing in the first branch channel 102 second groove; 111 can enter the plurality of first heat exchange channels at the same time, so that the plurality of first heat exchange channels can exchange heat with the first power module 12 at the same time, and the cooling medium after the heat exchange can flow out of the first heat exchange channel at the same time and enter the second branch channel 112 and flow out, so that the temperature difference between the plurality of first power modules 12 is small, the temperature between the plurality of first power modules 12 is more balanced, and the heat exchange effect of the power module assembly 100 is improved.

[0046] A third branch flow path 113 and a fourth branch flow path 114 are arranged in the second flow channel. The third branch flow path 113 and the fourth branch flow path 114 are arranged on both sides of the width direction of the substrate 11 respectively. The third branch flow path 113 and the second groove 111 of the first branch flow path 102 are arranged opposite to each other. The fourth branch flow path 114 and the second branch flow path 112 are arranged opposite to each other. A plurality of second heat exchange flow paths are arranged between the third branch flow path 113 and the fourth branch flow path 114. The plurality of second heat exchange flow paths are arranged at intervals from each other, and the plurality of second heat exchange flow paths are arranged at intervals from each other. The third branch flow path 113 and the fourth branch flow path 114 are connected respectively, and the cooling medium flowing in the third branch flow path 113 can enter multiple second heat exchange channels at the same time, so that the multiple second heat exchange channels can exchange heat with the second power modules 13 at the same time. The cooling medium after the heat exchange can flow out of the second heat exchange channels at the same time and enter the fourth branch flow path 114 to flow out, so that the temperature difference between the multiple second power modules 13 is smaller, the temperature between the multiple second power modules 13 is more balanced, and the heat exchange effect of the power module assembly 100 is improved.

[0047] According to an embodiment of the utility model, a first groove 101 and a second groove recessed toward the inside of the substrate 11 are respectively formed on both sides of the substrate 11 in the thickness direction, and a first heat exchange channel is defined in the first groove 101 and a second heat exchange channel is defined in the second groove.

[0048] In some specific embodiments, a first groove 101 is formed on one side of the substrate 11 in the thickness direction, and the first groove 101 is recessed toward the interior of the substrate 11. A second groove is formed on the other side of the substrate 11 in the thickness direction, and the second groove is recessed toward the interior of the substrate 11. A first heat exchange channel is defined in the first groove 101, and a second heat exchange channel is defined in the second groove. Therefore, there is no need to reserve additional space for the setting of the first heat exchange channel and the second heat exchange channel, which reduces the volume of the power module assembly 100, makes the structure of the power module assembly 100 more compact, and improves the integration of the power module assembly 100.

[0049] According to an embodiment of the present invention, the bottom wall of the first groove 101 is formed with a first communication hole 1011 and a second communication hole 1012 communicating with the first branch flow path 102, the second groove 111 and the second branch flow path 112, respectively, on both sides in the width direction;

[0050] A third communication hole 1013 and a fourth communication hole 1014 communicating with the third branch flow path 113 and the fourth branch flow path 114 are formed on both sides of the bottom wall of the second groove in the width direction, respectively.

[0051] In some specific embodiments, the bottom wall of each first groove 101 is respectively formed with a first connecting hole 1011 and a second connecting hole 1012 on both sides in the width direction, the first connecting hole 1011 penetrates the bottom wall of the first groove 101 in the thickness direction and is connected to the first branch flow path 102 and the second groove 111, the second connecting hole 1012 penetrates the bottom wall of the first groove 101 in the thickness direction and is connected to the second branch flow path 112, the first branch flow path 102 and the second groove 111 are formed with a first inlet, and the second branch flow path 102 and the second groove 111 are formed with a first inlet. A first outlet is formed on 12, and the cooling medium enters the second slot of the first branch flow path 102 from the first inlet; 111, the cooling medium then enters multiple first heat exchange channels respectively through the first connecting holes 1011 set on the bottom wall of each first slot 101, and after the cooling medium exchanges heat with the first power module 12 in the first heat exchange channel, it flows out of the multiple first heat exchange channels at the same time through the second connecting holes 1012 set on the bottom wall of each first slot 101 and flows into the second branch flow path 112, and the cooling medium flows out from the first outlet.

[0052] A third connecting hole 1013 and a fourth connecting hole 1014 are respectively formed on both sides of the bottom wall of each second groove in the width direction. The third connecting hole 1013 penetrates the bottom wall of the second groove in the thickness direction and is connected with the third branch flow path 113. The fourth connecting hole 1014 penetrates the bottom wall of the second groove in the thickness direction and is connected with the fourth branch flow path 114. A second inlet is formed on the third branch flow path 113, and a second outlet is formed on the fourth branch flow path 114. The cooling medium enters the third branch flow path 113 from the second inlet, and then enters multiple second heat exchange channels respectively through the third connecting hole 1013 set on the bottom wall of each second groove. After the cooling medium exchanges heat with the second power module 13 in the second heat exchange channel, it flows out of the multiple second heat exchange channels at the same time through the fourth connecting hole 1014 set on the bottom wall of each second groove and flows into the fourth branch flow path 114, and the cooling medium flows out from the second outlet.

[0053] According to an embodiment of the utility model, the first connecting hole 1011 can be constructed as a strip hole and have the same extension direction as the second groove; 111 of the first branch flow path 102, so that the connecting area of ​​the first connecting hole 1011 and the second groove; 111 of the first branch flow path 102 is increased, thereby increasing the flow rate of the cooling medium in the first heat exchange flow channel, and improving the heat exchange effect between the first heat exchange flow channel and the first power module 12; the second connecting hole 1012 can be constructed as a strip hole and have the same extension direction as the second branch flow path 112, so that the connecting area of ​​the second connecting hole 1012 and the second branch flow path 112 is increased, so that the cooling medium in the first heat exchange flow channel that has completed heat exchange with the first power module 12 can flow out of the first heat exchange flow channel faster, thereby improving the heat exchange effect and heat exchange efficiency between the first heat exchange flow channel and the first power module 12;

[0054] The third connecting hole 1013 can be constructed as a strip hole and have the same extension direction as the third branch flow path 113, so that the connecting area between the third connecting hole 1013 and the third branch flow path 113 is increased, thereby increasing the flow rate of the cooling medium in the second heat exchange channel, and improving the heat exchange effect between the second heat exchange channel and the second power module 13; the fourth connecting hole 1014 can be constructed as a strip hole and have the same extension direction as the fourth branch flow path 114, so that the connecting area between the fourth connecting hole 1014 and the fourth branch flow path 114 is increased, so that the cooling medium that has completed heat exchange with the second power module 13 in the second heat exchange channel can flow out of the second heat exchange channel faster, thereby improving the heat exchange effect and heat exchange efficiency between the second heat exchange channel and the second power module 13.

[0055] 7. According to an embodiment of the present utility model, the power module assembly 100 further includes: a first heat sink 14, wherein the first heat sink 14 and the first slot 101 are configured in a one-to-one correspondence, the first heat sink 14 is disposed on the substrate 11 and is suitable for closing the first slot 101, the first heat sink 14 and the first power module 12 are disposed in a one-to-one correspondence, the first power module 12 is disposed on the first heat sink 14 and is suitable for heat exchange with the first heat sink 14;

[0056] The second heat sink 15 is configured to have a one-to-one correspondence with the second groove. The second heat sink 15 is arranged on the substrate 11 and is suitable for closing the second groove. The second heat sink 15 is arranged in a one-to-one correspondence with the second power module 13. The second power module 13 is arranged on the second heat sink 15 and is suitable for heat exchange with the second heat sink 15.

[0057] In some specific embodiments, a first heat sink 14 and a second heat sink 15 are further provided in the power module assembly 100. The first heat sink 14 and the first slot 101 are constructed in a one-to-one correspondence. The first heat sink 14 is arranged at the open mouth of the first slot 101, and at least part of the first heat sink 14 extends into the first slot 101. The first heat sink 14 is suitable for closing the first slot 101 to prevent the cooling medium from leaking from the open mouth of the first slot 101, which can effectively prevent the occurrence of short circuit accidents of the first power module 12 and improve the stability and reliability of the first power module 12 during operation. At the same time, the first heat sink 14 is also arranged corresponding to the first power module 12. The first power module 12 is arranged on the first heat sink 14 and can exchange heat with the first heat sink 14 to reduce the temperature of the first power module 12 during operation, thereby ensuring the normal operation of the first power module 12.

[0058] In addition, the second heat sink 15 and the second groove are constructed in a one-to-one correspondence. The second heat sink 15 is arranged at the open mouth of the second groove, and at least part of the second heat sink 15 extends into the second groove. The second heat sink 15 is suitable for closing the second groove to prevent the cooling medium from leaking from the open mouth of the first groove 101, which can effectively prevent the occurrence of short-circuit accidents of the first power module 12, and improve the stability and reliability of the first power module 12 during operation. At the same time, the second heat sink 15 is also arranged corresponding to the second power module 13. The second power module 13 is arranged on the second heat sink 15 and can exchange heat with the second heat sink 15 to reduce the temperature of the second power module 13 during operation, thereby ensuring the normal operation of the second power module 13.

[0059] According to one embodiment of the utility model, heat sinks are respectively provided in the first heat sink 14 and the second heat sink 15. The heat sink on the first heat sink 14 extends into the first groove 101 to perform heat exchange with the first heat exchange channel, and the heat sink on the second heat sink 15 extends into the second groove to perform heat exchange with the second heat exchange channel.

[0060] In some specific embodiments, a heat sink is provided in the first heat sink 14, one end of the heat sink is in contact with the first power module 12 and is suitable for heat exchange with the first power module 12, and the other end of the heat sink can extend along the thickness direction and the length direction or the width direction of the substrate 11, so that the other end of the heat sink extends into the first groove 101 and contacts the cooling medium flowing in the first heat exchange channel, so as to perform heat exchange with the first heat exchange channel, thereby realizing heat exchange between the first power module 12 and the first heat exchange channel, and reducing the temperature of the first power module 12 when it is running; the second heat sink A heat sink is also provided in the plate 15, one end of the heat sink is in contact with the second power module 13 and is suitable for heat exchange with the second power module 13, and the other end of the heat sink can extend along the thickness direction and the length direction or the width direction of the substrate 11, so that the other end of the heat sink extends into the second groove and contacts the cooling medium flowing in the second heat exchange channel for heat exchange with the second heat exchange channel, thereby realizing heat exchange between the second power module 13 and the second heat exchange channel, reducing the temperature of the second power module 13 during operation, and improving the stability and reliability of the power component during operation.

[0061] The cross section of the heat sink may be configured as a circle or a polygon, so as to increase the contact area between the heat sink and the cooling medium, thereby improving the heat dissipation effect on the first power module 12 and the second power module 13 .

[0062] According to one embodiment of the utility model, each first power module 12 is provided with a first signal terminal 21, and the extension direction of the first signal terminal 21 is perpendicular to the thickness direction of the substrate 11. Each second power module 13 is provided with a second signal terminal 31, and the extension direction of the second signal terminal 31 is perpendicular to the thickness direction of the substrate 11.

[0063] In some specific embodiments, each first power module 12 is provided with a first AC terminal 23 and a plurality of first signal terminals 21 at one end in the width direction of the substrate 11, and a plurality of first DC terminals 22 are provided at the other end of each first power module 12. The first signal terminal 21 and the first DC terminal 22 extend away from each other in a direction perpendicular to the thickness direction of the substrate 11, and the first AC terminal 23 extends in the same direction as the first signal terminal 21, thereby reducing the volume of the first power module 12 in the thickness direction of the substrate 11.

[0064] Each second power module 13 is provided with a second AC terminal 33 and a plurality of second signal terminals 31 at one end in the width direction of the substrate 11, and a plurality of second DC terminals 32 are provided at the other end of each second power module 13. The second signal terminals 31 and the second DC terminals 32 extend away from each other in a direction perpendicular to the thickness direction of the substrate 11, and the second AC terminals 33 and the second signal terminals 31 extend in the same direction, thereby reducing the volume of the second power module 13 in the thickness direction of the substrate 11.

[0065] In summary, in the present application, by providing a first signal terminal 21 extending in a direction perpendicular to the thickness of the substrate 11 on the first power module 12 and providing a second signal terminal 31 extending in a direction perpendicular to the thickness of the substrate 11 on the second power module 13, the power module assembly 100 as a whole occupies less space in the thickness direction of the substrate 11, thereby reducing the volume of the power equipment in the thickness direction.

[0066] The power equipment according to the utility model is briefly described below.

[0067] The power equipment according to the utility model is provided with a power module assembly 100 as described in any one of the above embodiments. Since the power equipment according to the utility model is provided with a power module assembly 100 as described in any one of the above embodiments, the stability and reliability of the power equipment according to the present application during operation are higher.

[0068] 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", "clockwise", "counterclockwise", "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.

[0069] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0070] In the description of the present invention, "plurality" means two or more.

[0071] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0072] In the description of the present utility model, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0073] 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 power module assembly, characterized in that: include: substrate; 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 substrate in a thickness direction, and the first power module and the second power module respectively work independently; in A first flow channel and a second flow channel are formed inside the substrate. The first flow channel corresponds to the first power module and is used to circulate a cooling medium inside the first power module to exchange heat for the first power module when the first power module is working; the second flow channel corresponds to the second power module and is used to circulate a cooling medium inside the second power module to exchange heat for the second power module when the second power module is working.

2. The power module assembly according to claim 1, characterized in that: The first power modules are structured in a plurality, and first heat exchange channels corresponding to the plurality of the first power modules are formed in the first channel, and the plurality of the first heat exchange channels are arranged in parallel with each other; The second power modules are structured in multiple numbers, and second heat exchange channels corresponding to the multiple second power modules are formed in the second channel, and the multiple second heat exchange channels are arranged in parallel with each other.

3. The power module assembly according to claim 2, characterized in that: The first flow channel comprises: a first branch flow path, the first branch flow path being arranged at one side in the width direction of the substrate; a second branch flow path, the second branch flow path being arranged at the other side in the width direction of the substrate, wherein a plurality of the first heat exchange flow paths are arranged between the first branch flow path and the second branch flow path at intervals, and the plurality of the first heat exchange flow paths respectively connect the first branch flow path with the second branch flow path; The second flow channel comprises: a third branch flow path, the third branch flow path being arranged opposite to the first branch flow path in the thickness direction of the substrate; A fourth branch flow path, wherein the fourth branch flow path is arranged opposite to the third branch flow path in the width direction of the substrate and opposite to the second branch flow path in the thickness direction of the substrate, wherein a plurality of the second heat exchange flow paths are arranged between the third branch flow path and the fourth branch flow path at intervals, and a plurality of the second heat exchange flow paths respectively connect the third branch flow path with the fourth branch flow path.

4. The power module assembly according to claim 3, characterized in that: A first groove and a second groove recessed toward the inside of the substrate are respectively formed on both sides of the substrate in the thickness direction. The first heat exchange channel is defined in the first groove, and the second heat exchange channel is defined in the second groove.

5. The power module assembly according to claim 4, characterized in that: A first communication hole and a second communication hole communicating with the first branch flow path and the second branch flow path are respectively formed on both sides of the bottom wall of the first groove in the width direction; A third communication hole and a fourth communication hole communicating with the third branch flow path and the fourth branch flow path are respectively formed on both sides of the bottom wall of the second groove in the width direction.

6. The power module assembly according to claim 5, characterized in that: The first communication hole is configured as a strip-shaped hole and extends in the same direction as the first branch flow path; the second communication hole is configured as a strip-shaped hole and extends in the same direction as the second branch flow path; The third communication hole is configured as a strip-shaped hole and extends in the same direction as the third branch flow path; the fourth communication hole is configured as a strip-shaped hole and extends in the same direction as the fourth branch flow path.

7. The power module assembly according to claim 4, characterized in that: Also includes: a first heat sink, wherein the first heat sink and the first slot are configured in a one-to-one correspondence, the first heat sink is disposed on the substrate and is suitable for closing the first slot, the first heat sink and the first power module are configured in a one-to-one correspondence, the first power module is disposed on the first heat sink and is suitable for performing heat exchange with the first heat sink; A second heat sink, wherein the second heat sink and the second slot are configured in a one-to-one correspondence, the second heat sink is arranged on the substrate and is suitable for closing the second slot, the second heat sink and the second power module are arranged in a one-to-one correspondence, the second power module is arranged on the second heat sink and is suitable for heat exchange with the second heat sink.

8. The power module assembly according to claim 7, characterized in that: The first heat sink and the second heat sink are respectively provided with heat sinks. The heat sink on the first heat sink extends into the first groove to exchange heat with the first heat exchange channel. The heat sink on the second heat sink extends into the second groove to exchange heat with the second heat exchange channel.

9. The power module assembly according to claim 2, characterized in that: Each of the first power modules is provided with a first signal terminal, the extension direction of which is perpendicular to the thickness direction of the substrate, and each of the second power modules is provided with a second signal terminal, the extension direction of which is perpendicular to the thickness direction of the substrate.

10. A power device, characterized in that: A power module assembly comprising any one of claims 1 to 9.

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