Liquid-cooled inductance module and energy storage converter

Abstract

The utility model discloses a liquid cooling type inductance module and energy storage converter, wherein, liquid cooling type inductance module includes the inductance box for loading inductance magnetic core, the inductance box includes: main box body and respectively sealed setting in the liquid inlet and outlet board group and the busbar group of main box body two sides, the main box body is provided with multiple flow guide channels on the through, is used for the flow guide cooling medium between the liquid inlet and outlet board group and the busbar group, the liquid inlet and outlet board group is divided and is provided with the liquid inlet chamber for supplying cooling medium and the liquid outlet chamber for discharging cooling medium in, the busbar group is used for the confluence cooling medium. The utility model effectively improves the heat dissipation efficiency, realizes effective heat dissipation cooling, saves the configuration of external fan simultaneously, and the quietness is better, and saves the heat dissipation fin, reduces the overall volume, saves the installation space.

Description

Technical Field

[0001] This utility model relates to the field of inductor heat dissipation technology, and in particular to a liquid-cooled inductor module and energy storage converter. Background Technology

[0002] In the field of power electronics products such as energy storage converters and photovoltaic inverters, boost or inverter power inductors generate a large amount of heat during operation, such as... Figure 1 and Figure 2 As shown, in existing inductor modules, since the inductor core 20 is mostly placed inside the inductor box 10 and then fixed by potting compound 30 and primer, the heat dissipation path of the inductor is long and the thermal resistance is large. If heat dissipation cannot be achieved in time, the machine will often be troubled by the problem of excessive inductor temperature rise during operation.

[0003] Currently, most commonly used inductor modules have heat sink fins 14 on the outside of the inductor housing 10, relying on natural wind or forced air cooling by a fan for heat dissipation. During operation, the heat generated by the magnetic core inside the inductor housing 10 is transferred to the potting compound 30, which then transfers the heat to the sidewalls of the inductor housing 10. The sidewalls then further extend the heat to the entire exterior of the inductor housing 10 and the heat sink fins 14. Airflow blows onto the inductor housing 10 and the heat sink fins 14, carrying away the heat, thus completing the cooling process. However, traditional inductor modules suffer from low internal heat dissipation efficiency and poor heat dissipation performance, and the use of forced air cooling by a fan also generates significant noise. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a liquid-cooled inductor module and energy storage converter, which has the advantages of high heat transfer efficiency, good heat dissipation performance and low noise.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] According to a first aspect of the present disclosure, a liquid-cooled inductor module is provided, including an inductor box for loading an inductor core, the inductor box including: a main box body, and an inlet / outlet liquid plate assembly and a busbar assembly respectively sealed on both sides of the main box body;

[0007] The main box body is provided with multiple flow channels for guiding the cooling medium between the inlet and outlet liquid plate group and the manifold group;

[0008] The inlet and outlet plate assembly is divided into an inlet chamber for supplying cooling medium and an outlet chamber for discharging cooling medium.

[0009] The manifold assembly is used to collect the cooling medium.

[0010] To achieve the above technical solution, the external liquid supply device supplies the cooling medium from the inlet chamber into the inlet and outlet plate assembly. The medium then flows through corresponding guide channels through the main housing into the manifold assembly, and then back through the main housing to the outlet chamber via the corresponding guide channels, returning to the external liquid supply device. This ensures continuous circulation of the cooling medium. During this circulation, the cooling medium carries away the heat transferred from the inductor core to the inductor housing, achieving rapid and uniform heat dissipation and cooling of the inductor core. Multiple guide channels on the main housing ensure that the cooling medium is evenly distributed within the main housing. The cooling medium flowing in each flow channel can absorb heat, thereby effectively improving heat dissipation efficiency. At the same time, the cooling medium flowing in the manifold assembly can also absorb heat. After the cooling medium flows from the outlet chamber to the external liquid supply device, the cooling medium that has absorbed heat will be recooled in the external liquid supply device, so that the cooling medium supplied to the main box is in a low temperature state, achieving effective heat dissipation and cooling. At the same time, the configuration of the external fan is eliminated, resulting in better quietness, and the heat dissipation fins are eliminated, reducing the overall volume and saving installation space.

[0011] In some exemplary embodiments, the inlet and outlet liquid plate assembly includes an inlet and outlet liquid flow chamber plate and a first sealing end plate sealed to the inlet and outlet liquid flow chamber plate. The inlet chamber and the outlet chamber are disposed on the inlet and outlet liquid flow chamber plate, and the first sealing end plate is provided with an inlet connector corresponding to the inlet chamber and an outlet connector corresponding to the outlet chamber. The inlet connector and the outlet connector are used to connect to an external liquid supply device.

[0012] To achieve the above technical solution, the inlet and outlet connectors facilitate connection with an external liquid supply device. The cooling medium flows from the inlet interface to the inlet chamber and from the outlet chamber back to the external liquid supply device via the outlet connector, thus realizing the circulation of the coolant.

[0013] In some exemplary embodiments, the manifold assembly includes a manifold cavity plate and a second sealing end plate that is sealed to the manifold cavity plate, wherein a manifold cavity is formed within the manifold cavity plate.

[0014] In some exemplary embodiments, the multiple flow channels include an inlet channel group and an outlet channel group. The inlet and outlet flow chamber plate is provided with a first inlet group corresponding to the inlet channel group and a first outlet group corresponding to the outlet channel group. The manifold plate is provided with a second inlet group corresponding to the inlet channel group and a second outlet group corresponding to the outlet channel group.

[0015] To achieve the above technical solution, the cooling medium enters the inlet channel group from the first inlet group, then flows to the manifold cavity from the second inlet group for merging, then flows into the outlet channel group from the second outlet group, and then flows back to the external liquid supply device from the first outlet group, thus realizing the circulation of the cooling medium.

[0016] In some exemplary embodiments, the manifold is provided with an arc-shaped guide protrusion.

[0017] The above technical solution facilitates the diffusion of the cooling medium in the manifold.

[0018] In some exemplary embodiments, the inlet chamber and the outlet chamber are separated by a partition plate integrally formed with the inlet and outlet flow chamber plate.

[0019] The above technical solution is easy to process and has a clear regional division.

[0020] In some exemplary embodiments, the main housing is further provided with a plurality of mounting holes on its open end face.

[0021] Implementing the above technical solution facilitates the connection between the main housing and the corresponding installation parts of the energy storage converter.

[0022] In some exemplary embodiments, the main housing, the inlet / outlet fluid flow chamber plate, and the manifold plate are all integrally formed by aluminum extrusion.

[0023] The above technical solution makes the processing method simpler and more convenient.

[0024] In some exemplary embodiments, the opening of the inductor box is provided with potting compound to fix the inductor core.

[0025] The above technical solution facilitates the installation and fixing of the inductor core.

[0026] According to a second aspect of the present disclosure, an energy storage converter is provided, comprising:

[0027] The liquid-cooled inductor module as described in the first aspect; and...

[0028] An external liquid supply device is connected to the inlet chamber and the outlet chamber, and the external liquid supply device is used to realize the circulation of the cooling medium.

[0029] To achieve the above technical solution, the cooling medium is supplied and circulated by an external liquid supply device. The cooling medium circulates in a ring-shaped manner between the main box, the inlet and outlet liquid plate group and the manifold group. The heat conduction path is short, the thermal resistance is low, the heat conduction speed is fast, the heat dissipation efficiency is high, and the heat dissipation is more uniform, which effectively improves the heat dissipation effect.

[0030] In summary, compared with the prior art, this utility model has the following beneficial effects:

[0031] This utility model provides a liquid-cooled inductor module and an energy storage converter. The liquid-cooled inductor module includes an inductor box for loading inductor cores. The inductor box includes a main box body and inlet / outlet liquid plate assemblies and a busbar assembly respectively sealed on both sides of the main box body. The main box body has multiple flow channels for guiding cooling medium between the inlet / outlet liquid plate assemblies and the busbar assembly. The inlet / outlet liquid plate assemblies are divided into an inlet chamber for supplying cooling medium and an outlet chamber for discharging cooling medium. The busbar assembly is used to collect the cooling medium. The external liquid supply device supplies the cooling medium from the inlet chamber into the inlet and outlet plate assembly. The medium then flows through corresponding guide channels through the main housing into the manifold assembly, and then back through the main housing to the outlet chamber, returning to the external liquid supply device. This continuous circulation of the cooling medium carries away the heat transferred from the inductor core to the inductor box, achieving rapid and uniform cooling of the inductor core. Multiple guide channels on the main housing ensure even distribution of the cooling medium within it. Each guide channel absorbs heat, effectively improving heat dissipation efficiency. Simultaneously, the cooling medium flowing through the manifold assembly also absorbs heat. After flowing from the outlet chamber to the external liquid supply device, the cooled medium is recooled, ensuring that all cooling medium supplied to the main housing is at a low temperature, achieving effective heat dissipation. This eliminates the need for an external fan, resulting in quieter operation, and also eliminates the need for heat sink fins, reducing overall size and saving installation space. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of an existing inductor module in the background art.

[0033] Figure 2 This is a schematic diagram of the structure of an existing inductor module with the potting compound removed, as described in the background art.

[0034] Figure 3 This is a schematic diagram of the structure of the liquid-cooled inductor module in an embodiment of this utility model.

[0035] Figure 4 This is a schematic diagram of the structure of the liquid-cooled inductor module after removing the potting compound in an embodiment of this utility model.

[0036] Figure 5 This is an exploded view of the liquid-cooled inductor module in an embodiment of this utility model.

[0037] Figure 6 This is an exploded view of the liquid-cooled inductor module in an embodiment of this utility model from another perspective.

[0038] The numbers and letters in the diagram represent the names of the corresponding components:

[0039] 10. Inductor box; 11. Main box body; 111. Liquid inlet channel assembly; 112. Liquid outlet channel assembly; 113. Mounting hole; 12. Liquid inlet / outlet plate assembly; 121. Liquid inlet / outlet flow chamber plate; 122. First sealing end plate; 123. Liquid inlet chamber; 124. Liquid outlet chamber; 125. Liquid inlet connector; 126. Liquid outlet connector; 127. First liquid inlet assembly; 128. First liquid outlet assembly; 129. Divider plate; 13. Manifold assembly; 131. Manifold plate; 132. Second sealing end plate; 133. Manifold; 134. Second liquid inlet assembly; 135. Second liquid outlet assembly; 136. Arc-shaped guide protrusion; 14. Heat dissipation fins; 20. Inductor core; 30. Encapsulating glue. Detailed Implementation

[0040] 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.

[0041] like Figures 3 to 6 As shown, the first aspect of this utility model provides a liquid-cooled inductor module, including an inductor box 10 for loading an inductor core 20. The inductor box 10 includes a main box body 11, and an inlet / outlet liquid plate assembly 12 and a manifold assembly 13 respectively sealed on both sides of the main box body 11. The main box body 11 is provided with multiple flow channels for guiding the cooling medium between the inlet / outlet liquid plate assembly 12 and the manifold assembly 13. The inlet / outlet liquid plate assembly 12 is divided into an inlet chamber 123 for supplying the cooling medium and an outlet chamber 124 for discharging the cooling medium. The manifold assembly 13 is used to collect the cooling medium.

[0042] Specifically, the inlet / outlet liquid plate assembly 12 includes an inlet / outlet liquid flow chamber plate 121 and a first sealing end plate 122 sealed to the inlet / outlet liquid flow chamber plate 121. An inlet chamber 123 and an outlet chamber 124 are disposed on the inlet / outlet liquid flow chamber plate 121. The first sealing end plate 122 is provided with an inlet connector 125 corresponding to the inlet chamber 123 and an outlet connector 126 corresponding to the outlet chamber 124. The inlet connector 125 and the outlet connector 126 are used to connect to an external liquid supply device. The inlet chamber 123 and the outlet chamber 124 are separated by a partition plate 129 integrally formed with the inlet / outlet liquid flow chamber plate 121, which facilitates processing and provides clear area division. The partition plate 129 and the inlet / outlet liquid flow chamber plate 121... The end faces of 21 are flush; the end faces of the inlet and outlet liquid flow chamber plate 121 and the main box 11 can be sealed and fixed by welding or bonding. The inlet and outlet liquid flow chamber plate 121 and the first sealing end plate 122 are also sealed and fixed by welding or bonding. It can be understood that the partition plate 129 is also sealed and connected to the first sealing end plate 122, so as to ensure the sealing of the separation between the liquid inlet chamber 123 and the liquid outlet chamber 124. The liquid inlet connector 125 and the liquid outlet connector 126 facilitate connection with the external liquid supply device. The cooling medium flows from the liquid inlet interface to the liquid inlet chamber 123 and flows back from the liquid outlet chamber 124 to the external liquid supply device through the liquid outlet connector 126, realizing the circulation of the coolant.

[0043] The manifold assembly 13 includes a manifold cavity 133 plate 131 and a second sealing end plate 132 that is sealed to the manifold cavity 133 plate 131. The manifold cavity 133 is formed inside the manifold cavity 133 plate 131. Similarly, the manifold cavity 133 plate 131 and the end face of the main box 11, as well as the manifold cavity 133 plate 131 and the second sealing end plate 132, can be sealed and fixed by welding or bonding.

[0044] The multiple flow channels include an inlet channel group 111 and an outlet channel group 112. Both the inlet channel group 111 and the outlet channel group 112 include multiple evenly distributed flow channels. The inlet and outlet flow chamber plate 121 is provided with a first inlet group 127 corresponding to the inlet channel group 111 and a first outlet group 128 corresponding to the outlet channel group 112. The manifold plate 133 is provided with a second inlet group 134 corresponding to the inlet channel group 111 and a second outlet group 128 corresponding to the outlet channel group 112. 35; It is understood that the first inlet group 127 is located at the edge of the inlet chamber 123 and includes multiple evenly distributed first inlets; the first outlet group 128 is located at the edge of the outlet chamber 124 and includes multiple evenly distributed first outlets; the second inlet group 134 includes several evenly distributed second inlets; the second outlet group 135 includes several evenly distributed second outlets; and both the first inlet group 127 and the second inlet group 134 are located at the edge of the manifold 133.

[0045] The cooling medium can be water, 50% ethylene glycol, heat transfer oil, or other fluid media. The cooling medium enters the inlet channel group 111 from the first inlet group 127, then flows to the manifold 133 from the second inlet group 134 for merging, then flows into the outlet channel group 112 from the second outlet group 135, and then flows to the outlet chamber 124 from the first outlet group 128 and then flows back to the external liquid supply device, realizing the circulation of the cooling medium.

[0046] Furthermore, an arc-shaped guide protrusion 136 is provided in the manifold 133, and the cooling medium can flow along the edge of the arc-shaped guide protrusion 136 so as to facilitate the diffusion of the cooling medium in the manifold 133.

[0047] To facilitate the connection between the main housing 11 and the corresponding mounting parts of the energy storage converter, several mounting holes 113 are provided on the open end face of the main housing 11. In this embodiment, it is preferable that the main housing 11, the inlet / outlet liquid flow chamber plate 121, and the manifold 133 plate 131 are all integrally formed from aluminum extrusion, making the processing method simpler and more convenient. Furthermore, potting compound 30 is provided at the opening of the inductor box 10 to fix the inductor core 20, thereby facilitating the installation and fixing of the inductor core 20.

[0048] An external liquid supply device supplies cooling medium from the inlet chamber 123 into the inlet / outlet plate assembly 12. The medium then flows through corresponding guide channels through the main housing 11 into the manifold assembly 13, and then back through the main housing 11 to the outlet chamber 124, returning to the external liquid supply device. This achieves continuous circulation of the cooling medium. During this circulation, the cooling medium carries away the heat transferred from the inductor core 20 to the inductor housing 10, achieving rapid and uniform heat dissipation and cooling of the inductor core 20. Multiple guide channels on the main housing 11 ensure that the cooling medium is evenly distributed throughout the main housing. Within 11, the cooling medium flowing in each guide channel can absorb heat, thereby effectively improving heat dissipation efficiency. At the same time, the cooling medium flowing in the manifold assembly 13 can also absorb heat. After the cooling medium flows from the outlet chamber 124 to the external liquid supply device, the cooling medium that has absorbed heat will be recooled in the external liquid supply device, so that the cooling medium supplied to the main box 11 is in a low temperature state, achieving effective heat dissipation and cooling. At the same time, the configuration of the external fan is eliminated, resulting in better quietness, and the heat dissipation fins 14 are eliminated, reducing the overall volume and saving installation space.

[0049] A second aspect of this utility model provides an energy storage converter, including: a liquid-cooled inductor module as described in the first aspect; and an external liquid supply device connected to an inlet chamber 123 and an outlet chamber 124, the external liquid supply device being used to realize the circulation of the cooling medium.

[0050] An external liquid supply device typically includes a liquid storage tank and a circulation pump. The liquid storage tank is used to store the cooling medium. The inlet end of the circulation pump is connected to the liquid storage tank, the outlet end is connected to the inlet connector 125, and the outlet connector 126 is connected to the liquid storage tank. When the circulation pump is working, the cooling medium can be circulated.

[0051] The cooling medium is supplied and circulated by an external liquid supply device. The cooling medium circulates in a ring-shaped manner between the main box 11, the inlet and outlet liquid plate group 12 and the manifold group 13. The heat conduction path is short, the thermal resistance is small, the heat conduction speed is fast, the heat dissipation efficiency is high, and the heat dissipation is more uniform, which effectively improves the heat dissipation effect.

[0052] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.

Claims

1. A liquid-cooled inductor module, characterized in that, The inductor box includes an inductor housing for loading inductor cores, the inductor housing comprising: a main housing body, and an inlet / outlet liquid plate assembly and a manifold assembly respectively sealed on both sides of the main housing body; The main box body is provided with multiple flow channels for guiding the cooling medium between the inlet and outlet liquid plate group and the manifold group; The inlet and outlet plate assembly is divided into an inlet chamber for supplying cooling medium and an outlet chamber for discharging cooling medium. The manifold assembly is used to collect the cooling medium.

2. The liquid-cooled inductor module according to claim 1, characterized in that, The liquid inlet and outlet plate assembly includes a liquid inlet and outlet flow chamber plate and a first sealing end plate that is sealed to the liquid inlet and outlet flow chamber plate. The liquid inlet chamber and the liquid outlet chamber are disposed on the liquid inlet and outlet flow chamber plate, and the first sealing end plate is provided with a liquid inlet connector corresponding to the liquid inlet chamber and a liquid outlet connector corresponding to the liquid outlet chamber. The liquid inlet connector and the liquid outlet connector are used to connect to an external liquid supply device.

3. The liquid-cooled inductor module according to claim 2, characterized in that, The manifold assembly includes a manifold cavity plate and a second sealing end plate that is sealed to the manifold cavity plate, wherein a manifold cavity is formed inside the manifold cavity plate.

4. The liquid-cooled inductor module according to claim 3, characterized in that, The multiple flow channels include an inlet channel group and an outlet channel group. The inlet and outlet flow chamber plate is provided with a first inlet group corresponding to the inlet channel group and a first outlet group corresponding to the outlet channel group. The confluence chamber plate is provided with a second inlet group corresponding to the inlet channel group and a second outlet group corresponding to the outlet channel group.

5. The liquid-cooled inductor module according to claim 3 or 4, characterized in that, The manifold is equipped with an arc-shaped guide protrusion.

6. The liquid-cooled inductor module according to claim 2, characterized in that, The inlet chamber and the outlet chamber are separated by a partition plate integrally formed with the inlet and outlet flow chamber plate.

7. The liquid-cooled inductor module according to claim 1, characterized in that, The main box body also has several mounting holes on its open end face.

8. The liquid-cooled inductor module according to claim 4, characterized in that, The main box body, the inlet and outlet liquid flow chamber plates, and the manifold plate are all integrally formed by aluminum extrusion.

9. The liquid-cooled inductor module according to claim 1, characterized in that, The opening of the inductor box is provided with potting compound to fix the inductor core.

10. An energy storage converter, characterized in that, include: Liquid-cooled inductor module as described in any one of claims 1-9; as well as, An external liquid supply device is connected to the inlet chamber and the outlet chamber, and the external liquid supply device is used to realize the circulation of the cooling medium.

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