Radiator

Abstract

The utility model provides a radiator, which is characterized in that a plurality of liquid cooling chambers are arranged on the upper surface of a body along the transverse direction, an inlet main pipeline and an outlet main pipeline are arranged along the transverse direction of the body, the inlet main pipeline is communicated with the outlet main pipeline through the plurality of liquid cooling chambers, and a first external connecting pipe is a circular pipeline. One end of the first external connecting pipe is communicated with the liquid inlet end of the inlet main pipeline, the other end of the first external connecting pipe is used for being communicated with an external liquid supply end, the turbulent flow piece is arranged at the liquid inlet end of the inlet main pipeline, the liquid inlet end of the inlet main pipeline and the liquid outlet end of the outlet main pipeline are located at the two ends of the body respectively, and the heat dissipation piece is arranged in the liquid cooling cavity. Due to the fact that the parallel heat dissipation structure is adopted, heat dissipation can be conducted on the SiC power modules at the same time, cooling liquid can be evenly distributed to the liquid cooling cavities, the heat dissipation capacity of the SiC power modules is kept consistent, and then the reliability and the service life of the SiC power modules are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology for SiC power modules, specifically a heat sink. Background Technology

[0002] SiC power modules are small heat-generating components with power consumption on the order of approximately 10 watts per unit volume. 9 W / m 3 SiC power modules are high-heat-flux-density heating components. If the SiC power module cannot be cooled down in time, it is easy to be damaged by high temperature. Therefore, from the perspective of device life and reliability, there is an urgent need for a heat sink that can quickly cool down the device. Utility Model Content

[0003] In view of this, the present invention provides a heat sink to solve the heat dissipation problem of SiC heat sink surface.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A heat sink includes: a body, a first external connecting pipe, a flow deflector, and a plurality of heat dissipation components;

[0006] Multiple liquid-cooled chambers are provided on the upper surface of the main body along the transverse direction;

[0007] An inlet main pipe and an outlet main pipe are provided laterally along the main body. The inlet main pipe has a rectangular cross-section, and the inlet main pipe and the outlet main pipe are respectively located on both sides of the main body.

[0008] The main inlet pipe is connected to the main outlet pipe through multiple liquid-cooled chambers;

[0009] The first external connecting pipe is a circular pipe. One end of the first external connecting pipe is connected to the liquid inlet end of the main inlet pipe, and the other end is used to connect to the external liquid supply end.

[0010] The flow-dissipating element is installed at the liquid inlet end of the main inlet pipe. The flow-dissipating element is used to disturb the coolant entering the main inlet pipe so that the coolant is evenly distributed to multiple liquid-cooled chambers.

[0011] The inlet end of the main inlet pipe and the outlet end of the main outlet pipe are located at opposite ends of the main body.

[0012] The heat dissipation components are located in the liquid cooling chamber.

[0013] Preferably, multiple coolant distribution inlets are provided along the length of the main inlet pipe. The main inlet pipe is connected to the liquid cooling chamber through the coolant distribution inlets, and the number of coolant distribution inlets corresponds one-to-one with the number of liquid cooling chambers. The coolant distribution inlets have an oblong structure.

[0014] Multiple coolant manifolds are provided along the length of the main outlet pipe. The main outlet pipe is connected to the liquid cooling chamber through the coolant manifolds, and the number of coolant manifolds corresponds one-to-one with the number of liquid cooling chambers. The coolant manifolds have a waist-shaped structure.

[0015] Preferably, both the inlet main pipe and the outlet main pipe are located below the liquid cooling chamber.

[0016] Preferably, the baffle is a rectangular structure with multiple through holes, wherein the baffle is sealed to the inner wall of the inlet main pipe on all four sides.

[0017] Preferably, the liquid cooling chamber has a rectangular structure.

[0018] Preferably, the heat sink has a rectangular structure.

[0019] Preferably, the lower end face of the heat sink is provided with multiple ribs.

[0020] Preferably, the ribs are prismatic in shape.

[0021] Preferably, it also includes an insulating component disposed on the top of the heat sink.

[0022] Preferably, the insulating component is made of alumina ceramic.

[0023] Based on the above, the present invention provides a radiator with multiple liquid-cooled chambers laterally formed on the upper surface of the main body, and an inlet main pipe and an outlet main pipe laterally formed along the main body. The cross-section of the inlet main pipe is rectangular. The inlet main pipe and the outlet main pipe are respectively located on both sides of the main body. The inlet main pipe is connected to the outlet main pipe through multiple liquid-cooled chambers. The first external connecting pipe is a circular pipe. One end of the first external connecting pipe is connected to the liquid inlet end of the inlet main pipe, and the other end is used to connect to an external liquid supply end. A flow-dispersing element is set at the liquid inlet end of the inlet main pipe to agitate the coolant entering the inlet main pipe so that the coolant is evenly distributed to multiple liquid-cooled chambers. The liquid inlet end of the inlet main pipe and the liquid outlet end of the outlet main pipe are respectively located at both ends of the main body. The radiator is set in the liquid-cooled chamber. With the heat sink disclosed above, since this application adopts a parallel heat dissipation structure, it can not only dissipate heat from multiple SiC power modules at the same time, but also distribute the coolant evenly to each liquid cooling chamber, so that the heat dissipation capacity of each SiC power module is consistent, thereby ensuring the reliability and service life of multiple SiC power modules. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 A schematic diagram of the structure of a radiator provided in an embodiment of this utility model;

[0026] Figure 2 A schematic diagram of the structure of the body provided in the embodiment of this utility model;

[0027] Figure 3 A top view of the main body provided for an embodiment of this utility model;

[0028] Figure 4 A side view of the main body provided for an embodiment of this utility model;

[0029] Figure 5 for Figure 3 Cross-sectional view at point DD;

[0030] Figure 6 for Figure 4 Cross-sectional view at EE;

[0031] Figure 7 This is a schematic diagram of the heat dissipation component provided in an embodiment of the present invention.

[0032] The components include: body 1, liquid cooling chamber 11, inlet main pipe 12, outlet main pipe 13, coolant branch inlet 14, coolant confluence outlet 15, first external connecting pipe 2, baffle 3, heat dissipation component 4, rib 41, insulating component 5, SiC power module 6, and second external connecting pipe 7. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] This utility model embodiment provides a heat sink, see [link]. Figures 1 to 7 , Figure 1 This is a schematic diagram of the structure of a radiator, which includes: a body 1, a first external connecting pipe 2, a flow-dissipating component 3, and multiple heat dissipation components 4;

[0035] Multiple liquid-cooled chambers 11 are provided on the upper surface of the main body 1 in a transverse direction;

[0036] An inlet main pipe 12 and an outlet main pipe 13 are provided laterally along the main body 1. The inlet main pipe 12 has a rectangular cross-section, and the inlet main pipe 12 and the outlet main pipe 13 are respectively located on both sides of the main body 1.

[0037] The inlet main pipe 12 is connected to the outlet main pipe 13 through multiple liquid-cooled chambers 11;

[0038] The first external connecting pipe 2 is a circular pipe. One end of the first external connecting pipe 2 is connected to the liquid inlet end of the main inlet pipe 12, and the other end is used to connect to the external liquid supply end.

[0039] The flow disturbance 3 is installed at the liquid inlet end of the inlet main pipe 12. The flow disturbance 3 is used to disturb the coolant entering the inlet main pipe 12 so that the coolant is evenly distributed to multiple liquid cooling chambers 11.

[0040] The inlet end of the inlet main pipe 12 and the outlet end of the outlet main pipe 13 are located at the two ends of the main body 1, respectively.

[0041] Heat sink 4 is located in liquid cooling chamber 11.

[0042] It should be noted that the first external connecting pipe 2 is set as a circular pipe to facilitate detachable connection with the external liquid supply end, while the cross-section of the inlet main pipe 12 is rectangular to effectively avoid the problems caused by the limited head and power of the liquid supply pump of the external liquid supply system.

[0043] By setting the first external connecting pipe 2 as a circular pipe and the inlet main pipe 12 as a rectangular cross-section, eddies are easily generated when the coolant enters the inlet main pipe 12 through the first external connecting pipe 2. These eddies will affect the inlet main pipe 12 from evenly distributing the coolant to the multiple liquid cooling chambers 11. Therefore, this application provides a turbulence-dispersing element 3 at the liquid inlet end of the inlet main pipe 12 to prevent eddies from being generated when the coolant enters the inlet main pipe 12 through the first external connecting pipe 2, thereby ensuring that the inlet main pipe 12 evenly distributes the coolant to the multiple liquid cooling chambers 11 and ensures uniform heat dissipation for the multiple heat dissipation components 4.

[0044] This embodiment of the invention features multiple liquid-cooled chambers 11 laterally formed on the upper surface of the main body 1, and an inlet main pipe 12 and an outlet main pipe 13 laterally formed along the main body 1. The inlet main pipe 12 has a rectangular cross-section. The inlet main pipe 12 and the outlet main pipe 13 are respectively located on both sides of the main body 1. The inlet main pipe 12 is connected to the outlet main pipe 13 through the multiple liquid-cooled chambers 11. The first external connecting pipe 2 is a circular pipe. One end of the first external connecting pipe 2 is connected to the liquid inlet end of the inlet main pipe 12, and the other end is used to connect to an external liquid supply end. A flow-dispersing element 3 is set at the liquid inlet end of the inlet main pipe 12 to agitate the coolant entering the inlet main pipe 12 so that the coolant is evenly distributed to the multiple liquid-cooled chambers 11. The liquid inlet end of the inlet main pipe 12 and the liquid outlet end of the outlet main pipe 13 are respectively located at both ends of the main body 1. A heat dissipation element 4 is set in the liquid-cooled chambers 11. With the heat sink disclosed above, since this application adopts a parallel heat dissipation structure, it can not only dissipate heat for multiple SiC power modules 6 at the same time, but also distribute the coolant evenly to each liquid cooling chamber 11, so that the heat dissipation capacity of each SiC power module 6 is consistent, thereby ensuring the reliability and service life of multiple SiC power modules 6.

[0045] Specifically, multiple coolant branch inlets 14 are provided along the length of the main inlet pipe 12. The main inlet pipe 12 is connected to the liquid cooling chamber 11 through the coolant branch inlets 14, and the number of coolant branch inlets 14 corresponds one-to-one with the number of liquid cooling chambers 11. The coolant branch inlets 14 have a waist-shaped structure.

[0046] Multiple coolant manifolds 15 are provided along the length of the main outlet pipe 13. The main outlet pipe 13 is connected to the liquid cooling chamber 11 through the coolant manifolds 15, and the number of coolant manifolds 15 corresponds one-to-one with the number of liquid cooling chambers 11. The coolant manifolds 15 have a waist-shaped structure.

[0047] It should be noted that setting the coolant inlet 14 as a waist-shaped structure and the coolant outlet 15 as a waist-shaped structure not only increases the flow rate of coolant entering the liquid cooling chamber 11, but also ensures the flow rate of coolant flowing out of the liquid cooling chamber 11.

[0048] It should also be noted that the coolant in the main inlet pipe 12 can be transported to the corresponding liquid cooling chamber 11 through the coolant diversion inlet 14 corresponding to the liquid cooling chamber 11, or the coolant can be transported to a liquid cooling chamber 11 through multiple coolant diversion inlets 14. Those skilled in the art can choose according to their needs.

[0049] This application can deliver coolant from the liquid cooling chamber 11 to the corresponding coolant manifold outlet 15 through the coolant manifold outlet 15 corresponding to the liquid cooling chamber 11, or a liquid cooling chamber 11 can deliver coolant to the outlet manifold through multiple coolant manifold outlets 15. Those skilled in the art can choose according to their needs.

[0050] Furthermore, both the inlet main pipe 12 and the outlet main pipe 13 are located below the liquid cooling chamber 11.

[0051] It should be noted that both the inlet main pipe 12 and the outlet main pipe 13 are located below the liquid cooling chamber 11. When the amount of coolant in the inlet main pipe 12 reaches the coolant diversion inlet 14, the coolant is simultaneously and evenly delivered to the corresponding liquid cooling chamber 11 through multiple coolant diversion inlets 14. This further ensures that the coolant flow rate in each liquid cooling chamber 11 is the same, thereby ensuring that the heat dissipation capacity of each SiC power module 6 remains consistent, and thus ensuring the reliability and service life of multiple SiC power modules 6.

[0052] Specifically, the baffle 3 has a rectangular structure and multiple through holes. The baffle 3 is sealed to the inner wall of the inlet main pipe 12 around its perimeter.

[0053] It should be noted that the baffle 3 is a rectangular structure with multiple through holes, and the baffle 3 is sealed to the inner wall of the inlet main pipe 12. This means that the coolant entering the inlet main pipe 12 must pass through the through holes of the baffle 3. The fact that the coolant enters the inlet main pipe 12 through multiple through holes can effectively prevent turbine generation. Therefore, it can further ensure that the inlet main pipe 12 distributes the coolant evenly to the multiple liquid cooling chambers 11, ensuring uniform heat dissipation for the multiple heat sinks 4.

[0054] Specifically, the liquid cooling chamber 11 has a rectangular structure.

[0055] It should be noted that the liquid cooling chamber 11 can be a rectangular structure or other structures (such as circular, triangular, polygonal, or other irregular structures). Those skilled in the art can choose according to their needs. However, in this utility model, it is preferred that the liquid cooling chamber 11 be a rectangular structure.

[0056] Specifically, heat sink 4 has a rectangular structure.

[0057] It should be noted that the heat sink 4 can be a rectangular structure or other structures (such as circular, triangular, polygonal or other irregular structures). Those skilled in the art can choose according to their needs. However, in this utility model, since the liquid cooling chamber 11 is a rectangular structure, this application prefers that the heat sink 4 is a rectangular structure.

[0058] Furthermore, the lower end face of the heat sink 4 is provided with multiple ribs 41.

[0059] It should be noted that by providing multiple ribs 41 on the lower end face of the heat sink 4, the ribs 41 can transfer the heat of the heat sink 4. Therefore, by contacting the coolant, the ribs 41 can effectively improve the heat exchange efficiency between the heat exchange component and the coolant, thereby achieving rapid heat dissipation of the SiC power module 6 and further ensuring the reliability and service life of the multiple SiC power modules 6.

[0060] Specifically, rib 41 has a prismatic structure.

[0061] It should be noted that the rib 41 can be a prismatic structure or other structures (such as cylindrical, polygonal, etc.). Those skilled in the art can choose according to their needs. However, since the prismatic structure has better turbulence control than other structures, the rib 41 of this application preferably adopts a prismatic structure.

[0062] Furthermore, the radiator also includes an insulating member 5 disposed on the top of the radiator 4.

[0063] It should be noted that by setting an insulating component 5 on the top of the heat sink 4, it is possible to prevent the SiC power module 6 from leaking current and causing a safety accident.

[0064] It should also be noted that the insulating component 5 of this application not only has an insulating function, but also needs to have good thermal conductivity in order to transfer the heat generated by the SiC power module 6 to the heat sink 4 for heat dissipation.

[0065] Specifically, the insulating component 5 is made of alumina ceramic.

[0066] It should be noted that alumina ceramic is a high-pressure, high-hardness, and corrosion-resistant material with good thermal conductivity and insulation properties. Therefore, the insulating component 5 of this application is made of alumina ceramic.

[0067] It should also be noted that the insulating component 5 can be made of alumina ceramic or other materials with insulating and thermally conductive properties, and those skilled in the art can choose according to their needs.

[0068] It is worth noting that if the heat sink 4 has insulating properties, the heat sink of this application can omit the insulating component 5.

[0069] Preferably, the radiator further includes: a second external connecting pipe 7;

[0070] One end of the second external connecting pipe 7 is connected to the water outlet end of the main outlet pipe 13, and the other end is used to connect to the external liquid supply end.

[0071] It should be noted that by setting the second external connection pipe 7, the outlet end of the main outlet pipe 13 can be effectively and conveniently connected to the external system.

[0072] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heat sink suitable for SiC power modules, characterized in that, The radiator includes: a body, a first external connecting pipe, a baffle, and multiple heat dissipation components; The upper surface of the body has multiple liquid-cooled chambers opened laterally; An inlet main pipe and an outlet main pipe are provided laterally along the main body, wherein the cross-section of the inlet main pipe is rectangular, and the inlet main pipe and the outlet main pipe are respectively located on both sides of the main body; The inlet main pipe is connected to the outlet main pipe through multiple liquid-cooled chambers; The first external connecting pipe is a circular pipe. One end of the first external connecting pipe is connected to the liquid inlet end of the main inlet pipe, and the other end is used to connect to the external liquid supply end. The flow-dispersing element is disposed at the liquid inlet end of the main inlet pipe. The flow-dispersing element is used to disturb the coolant entering the main inlet pipe so that the coolant is evenly distributed to the multiple liquid-cooled chambers. The inlet end of the main inlet pipe and the outlet end of the main outlet pipe are located at opposite ends of the main body. The heat dissipation component is disposed in the liquid cooling chamber.

2. The radiator according to claim 1, characterized in that, Multiple coolant diversion inlets are provided along the length of the main inlet pipe. The main inlet pipe is connected to the liquid cooling chamber through the coolant diversion inlets, and the number of coolant diversion inlets corresponds one-to-one with the number of liquid cooling chambers. The coolant diversion inlets have an oblong structure. Multiple coolant manifolds are provided along the length of the main outlet pipe. The main outlet pipe is connected to the liquid cooling chamber through the coolant manifolds, and the number of coolant manifolds corresponds one-to-one with the number of liquid cooling chambers. The coolant manifolds have a waist-shaped structure.

3. The radiator according to claim 2, characterized in that, Both the inlet main pipe and the outlet main pipe are located below the liquid cooling chamber.

4. The radiator according to claim 1, characterized in that, The baffle is a rectangular structure with multiple through holes, and its perimeter is sealed to the inner wall of the main inlet pipe.

5. The radiator according to claim 1, characterized in that, The liquid-cooled chamber has a rectangular structure.

6. The radiator according to claim 5, characterized in that, The heat sink has a rectangular structure.

7. The radiator according to claim 1, characterized in that, The lower end face of the heat sink is provided with multiple ribs.

8. The radiator according to claim 7, characterized in that, The ribs have a prismatic structure.

9. The radiator according to claim 1, characterized in that, Also includes: An insulating component is disposed on top of the heat sink.

10. The radiator according to claim 9, characterized in that, The insulating component is made of alumina ceramic.

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