Heat dissipation structure of energy storage converter and energy storage converter

Abstract

The utility model relates to the technical field of heat dissipation devices, and provides a heat dissipation structure of an energy storage converter and the energy storage converter. The heat dissipation structure of the energy storage converter comprises a heat dissipation block, a first cavity is formed in the heat dissipation block, a first air inlet is formed in the surface of the heat dissipation block, and the first air inlet is communicated with the first cavity; the heat dissipation block is provided with a plurality of air outlet channels, each air outlet channel is communicated with the first cavity, and an air outlet of each air outlet channel is used for being arranged opposite to one IGBI power module. According to the heat dissipation structure of the energy storage converter, the number of the air outlet channels of the heat dissipation block is multiple, and each air outlet channel is used for cooling one IGBI power module, so that the cooling effect of each IGBI power module is ensured, breakdown of the IGBI power modules due to uneven heat dissipation is avoided, and the heat dissipation effect of the energy storage converter is improved.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation device technology, and in particular to a heat dissipation structure and energy storage converter for an energy storage converter. Background Technology

[0002] Current high-capacity energy storage converters integrate IGBI power modules, reactors, and other components into the energy storage cabinet. During operation, the reactors and switching devices generate a significant amount of heat. When the temperature inside the energy storage cabinet becomes too high, it can cause IGBI power module breakdown, reactor insulation damage, and breakdown of other critical components such as capacitors. Therefore, energy storage cabinets typically include air ducts; however, the simple duct structure still results in uneven heat dissipation from the IGBI power modules. Utility Model Content

[0003] This invention provides a heat dissipation structure and energy storage converter for an energy storage converter, in order to solve the defect of uneven heat dissipation in IGBI power modules in the prior art.

[0004] This utility model provides a heat dissipation structure for an energy storage converter, including a heat sink block. The heat sink block has a first cavity inside and a first air inlet on its surface, which is connected to the first cavity. The heat sink block has multiple air outlet channels, each of which is connected to the first cavity, and the air outlet of each air outlet channel is used to be positioned opposite to an IGBI power module.

[0005] According to the present invention, a heat dissipation structure for an energy storage converter is provided, wherein the heat dissipation block includes: an air inlet and a plurality of air outlets, the air inlet having a first cavity and a first air inlet; the air outlets are configured as the air outlet channel, and the plurality of air outlets are arranged in parallel; or, the plurality of air outlets are spirally arranged along the circumferential direction of the air inlet.

[0006] According to the heat dissipation structure of the energy storage converter provided by this utility model, the air inlet is a ring structure, and the center of the ring structure is used to accommodate the fan; the inner surface of the ring structure is provided with a plurality of first air inlets along its circumference, and the interior of the ring structure has a plurality of first cavities. Each first air inlet, the first cavity and the air outlet are sequentially connected to form a spiral air duct, and the heat dissipation block has a plurality of the spiral air ducts.

[0007] According to the heat dissipation structure of the energy storage converter provided by this utility model, each of the air outlets includes: a first body part and a second body part, the first body part being connected to the second body part; the first body parts of the plurality of air outlets are arranged in a ring along the circumferential direction of the air inlet, each first body part being connected to a first cavity, and the second body parts of the plurality of air outlets being arranged in parallel.

[0008] According to the heat dissipation structure of the energy storage converter provided by this utility model, the cross-sectional shape of each second body part matches the cross-sectional shape of the IGBI power module.

[0009] According to the heat dissipation structure of the energy storage converter provided by this utility model, each of the second body parts is provided with a plurality of first grilles along its length extension direction.

[0010] This utility model also provides an energy storage converter, including an energy storage cabinet, a fan, multiple IGBI power modules, and a heat dissipation structure as described above. The fan, the heat dissipation structure, and the multiple IGBI power modules are disposed inside the energy storage cabinet. Multiple air outlets of the heat dissipation structure are arranged opposite to the multiple IGBI power modules one by one, and the fan is arranged opposite to the first air inlet of the heat dissipation structure.

[0011] According to the present invention, an energy storage converter is provided in which the fan is located at the center of the heat dissipation structure.

[0012] According to the present invention, an energy storage converter is provided, wherein the energy storage cabinet is provided with a second air inlet, and the energy storage cabinet has a second cavity and a third cavity, wherein the second air inlet is connected to the second cavity; the heat dissipation structure is disposed in the third cavity, and the first air inlet of the heat dissipation structure is connected to the second cavity.

[0013] According to the present invention, an energy storage converter is provided in which a plurality of second grilles are provided in the first air inlet.

[0014] The heat dissipation structure of the energy storage converter provided by this utility model sets multiple air outlet channels on the heat sink, with each air outlet channel used to cool one IGBI power module. This ensures the cooling effect of each IGBI power module, avoids breakdown of the IGBI power module due to uneven heat dissipation, and improves the heat dissipation effect of the energy storage converter. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the heat dissipation structure of the energy storage converter provided by this utility model.

[0017] Figure 2 This is a schematic diagram of the energy storage converter provided by this utility model.

[0018] Figure label:

[0019] 1. Heat sink; 11. Air inlet; 12. Air outlet; 121. First body section; 122. Second body section; 1221. First grille;

[0020] 2. Energy storage cabinet; 21. Partition; 22. Second cavity; 23. Third cavity; 211. Through hole;

[0021] 3. IGBI power module. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] The following is combined with Figure 1 and Figure 2 This invention describes the heat dissipation structure of the energy storage converter and the energy storage converter itself.

[0024] like Figure 1 As shown in the embodiment of this utility model, the heat dissipation structure of the energy storage converter includes a heat sink 1. The heat sink 1 has a first cavity inside, and a first air inlet is provided on the surface of the heat sink 1, which communicates with the first cavity. The heat sink 1 is provided with multiple air outlet channels, each of which communicates with the first cavity, and the air outlet of each air outlet channel is used to be positioned opposite to an IGBI power module 3.

[0025] Specifically, the energy storage converter has an energy storage cabinet 2, which houses multiple IGBI power modules 3. A heat sink 1 is located inside the energy storage cabinet 2, above the multiple IGBI power modules 3. Driven externally, airflow enters the first cavity through the first air inlet of the heat sink 1, and then flows out through multiple air outlets of the heat sink 1. Each air outlet is opposite to one IGBI power module 3, and each air outlet individually cools one IGBI power module 3.

[0026] In this embodiment, after the airflow passes through the first cavity, it is distributed to each air outlet channel and then individually cooled to each IGBI power module 3. This ensures that the heat dissipation of each IGBI power module 3 is uniform, avoiding uneven airflow from the air outlet channel, uneven heat dissipation of multiple IGBI power modules 3, and the problem of individual IGBI power modules 3 breaking down due to poor heat dissipation.

[0027] The heat dissipation structure of the energy storage converter provided in this embodiment of the utility model sets multiple air outlet channels of the heat sink, with each air outlet channel used to cool one IGBI power module. This ensures the cooling effect of each IGBI power module, avoids breakdown of the IGBI power module due to uneven heat dissipation, and improves the heat dissipation effect of the energy storage converter.

[0028] like Figure 1 As shown, in an embodiment of this utility model, the heat sink 1 includes an air inlet 11 and a plurality of air outlets 12. The air inlet 11 has a first cavity and a first air inlet. The air outlets 12 are configured as air outlet channels, and the plurality of air outlets 12 are arranged in parallel or in a spiral arrangement along the circumference of the air inlet 11.

[0029] Specifically, the first air inlet can be located on the outer or inner surface of the air inlet section 11. In an optional embodiment, the air inlet section 11 can be a shell structure, with the first air inlet located on the surface of the shell structure. Under the action of the fan, gas enters the first cavity through the first air inlet and is then distributed to each air outlet section 12. In this embodiment, the multiple air outlet sections 12 can be arranged in parallel or spirally.

[0030] In another optional embodiment, the air inlet 11 can also be an annular structure. The cavity at the center of the annular structure is used to accommodate the fan. Multiple first air inlets are provided on the inner surface of the annular structure along its circumference. The interior of the annular structure has multiple first cavities. A first air inlet, a first cavity, and an air outlet 12 are sequentially connected to form a spiral air duct. Under the action of the fan, gas enters each spiral air duct through each first air inlet and is then blown onto the IGBI power module 3 through the outlet of the spiral air duct. In this embodiment, the multiple air outlets 12 are spirally arranged. Furthermore, the number of spiral air ducts matches the number of IGBI power modules 3; if there are 3 IGBI power modules 3, then there are also 3 spiral air ducts.

[0031] like Figure 1 As shown, in an embodiment of this utility model, each air outlet 12 includes: a first body part 121 and a second body part 122. The first body part 121 is connected to the second body part 122. The first body parts 121 of the plurality of air outlets 12 are arranged in a ring along the circumferential direction of the air inlet 11. Each first body part 121 is connected to a first cavity. The second body parts 122 of the plurality of air outlets 12 are arranged in parallel so that each second body part 122 is opposite to an IGBI power module 3.

[0032] Furthermore, to ensure heat dissipation, the cross-sectional shape of each second body part 122 can be matched with the cross-sectional shape of the IGBI power module 3 to increase the contact area between the gas and the IGBI power module 3 and improve the heat dissipation effect. At the same time, the end face of the IGBI power module 3 is in contact with the gas, which can ensure uniform heat dissipation of the IGBI power module 3 and avoid uneven local heat dissipation.

[0033] Furthermore, each second body part 122 has multiple first grilles 1221 inside along the length of the second body part 122 to guide the gas flow direction, making the gas flow more uniform and ensuring uniform heat dissipation of the IGBI power module 3.

[0034] This utility model embodiment also provides an energy storage converter, including: an energy storage cabinet 2, a fan, multiple IGBI power modules 3, and a heat dissipation structure. The fan, heat dissipation structure, and multiple IGBI power modules 3 are all disposed inside the energy storage cabinet 2. Multiple air outlets of the heat dissipation structure are arranged opposite to the multiple IGBI power modules 3 one by one, and the fan is arranged opposite to the first air inlet of the heat dissipation structure.

[0035] Specifically, the energy storage converter includes an energy storage cabinet 2, which houses multiple IGBI power modules 3. The heat dissipation structure includes a heat sink 1, which is located within the energy storage cabinet 2 and above the multiple IGBI power modules 3. The heat sink 1 has a first cavity inside, and a first air inlet is provided on its surface, communicating with the first cavity. The heat sink 1 has multiple air outlet channels, each communicating with the first cavity. In this embodiment, the fan's location is related to the structure of the heat sink 1. For example, if the heat sink 1 is a shell structure, the first air inlet is located on the surface of the shell structure, and the fan can be positioned opposite the heat sink 1; or, if part of the heat sink 1 is an annular structure, the inner surface of the annular structure has a first air inlet, and the fan can be located in the cavity at the center of the annular structure.

[0036] The energy storage converter provided in this embodiment of the utility model has a heat dissipation structure set in the energy storage cabinet. The heat dissipation structure has multiple air outlet channels, and each air outlet channel is used to cool one IGBI power module. This ensures the cooling effect of each IGBI power module, avoids the breakdown of IGBI power modules due to uneven heat dissipation, and improves the heat dissipation effect of the energy storage converter.

[0037] Further, in this embodiment, the fan is located at the center of the heat dissipation structure. Specifically, the heat sink 1 includes an air inlet 11 and multiple air outlets 12. The air inlet 11 is an annular structure, and the fan is located in the cavity at the center of the annular structure. The inner surface of the annular structure has multiple first air inlets along the circumferential direction of the annular structure. The interior of the annular structure may have one or more first cavities. In an optional embodiment, when there is one first cavity, there is also one first air inlet. The multiple air outlets 12 are connected to the first cavity. Under the action of the fan, the gas enters the first cavity through the first air inlet and then flows to the end face of each IGBI power module 3 through each air outlet 12. In another optional embodiment, when there are multiple first cavities, there are also multiple first air inlets. One first air inlet, one first cavity, and one air outlet 12 are sequentially connected to form a spiral air duct. Under the action of the fan, the gas enters each spiral air duct through each first air inlet and then is blown to the IGBI power module 3 through the outlet of the spiral air duct.

[0038] like Figure 2As shown in the embodiment of this utility model, the energy storage cabinet 2 is provided with a partition 21, which divides the internal space of the energy storage cabinet 2 into a second cavity 22 and a third cavity 23. The opening of the second cavity 22 forms a second air inlet. The heat sink 1 and the IGBI power module 3 are disposed in the third cavity. The partition 21 is provided with a through hole 211 to connect the second cavity 22 with the first air inlet of the heat sink 1. Under the action of the fan, the gas flows from the second air inlet through the through hole 211 into each spiral air duct, and then flows out from the air outlet of each spiral air duct to the end face of the IGBI power module 3 to cool the IGBI power module 3.

[0039] Furthermore, the second air inlet is equipped with multiple second grilles to ensure that the gas enters the second cavity evenly through the second air inlet, making the gas flow more uniform.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A heat dissipation structure for an energy storage converter, characterized in that, The heat sink includes a heat sink with a first cavity inside and a first air inlet on the surface of the heat sink, the first air inlet communicating with the first cavity. The heat sink is provided with multiple air outlet channels, each of which is connected to the first cavity, and the air outlet of each air outlet channel is set opposite to an IGBI power module.

2. The heat dissipation structure of the energy storage converter according to claim 1, characterized in that, The heat sink includes an air inlet and multiple air outlets, the air inlet having a first cavity and a first air inlet; The air outlet is configured to form the air outlet channel, and multiple air outlets are arranged in parallel. Alternatively, multiple air outlets may be spirally arranged along the circumferential direction of the air inlet.

3. The heat dissipation structure of the energy storage converter according to claim 2, characterized in that, The air inlet is a ring structure, and the center of the ring structure is used to house the fan. The inner surface of the annular structure is provided with a plurality of first air inlets along its circumference, and the interior of the annular structure has a plurality of first cavities. Each first air inlet, the first cavity and the air outlet are sequentially connected to form a spiral air duct, and the heat sink has a plurality of the spiral air ducts.

4. The heat dissipation structure of the energy storage converter according to claim 3, characterized in that, Each of the air outlets includes: a first body part and a second body part, wherein the first body part is connected to the second body part; The first body portions of the plurality of air outlet portions are arranged in a ring along the circumferential direction of the air inlet portion, each of the first body portions is connected to a first cavity, and the second body portions of the plurality of air outlet portions are arranged in parallel.

5. The heat dissipation structure of the energy storage converter according to claim 4, characterized in that, The cross-sectional shape of each of the second body parts matches the cross-sectional shape of the IGBI power module.

6. The heat dissipation structure of the energy storage converter according to claim 4, characterized in that, Each of the second body sections has a plurality of first grilles extending along its length.

7. An energy storage converter, characterized in that, The device includes an energy storage cabinet, a fan, multiple IGBI power modules, and a heat dissipation structure as described in any one of claims 1-6. The fan, the heat dissipation structure, and the multiple IGBI power modules are disposed inside the energy storage cabinet. Multiple air outlets of the heat dissipation structure are disposed opposite to the multiple IGBI power modules, and the fan is disposed opposite to the first air inlet of the heat dissipation structure.

8. The energy storage converter according to claim 7, characterized in that, The fan is located at the center of the heat dissipation structure.

9. The energy storage converter according to claim 7, characterized in that, The energy storage cabinet is provided with a second air inlet, and the energy storage cabinet has a second cavity and a third cavity, with the second air inlet communicating with the second cavity; The heat dissipation structure is disposed in the third cavity, and the first air inlet of the heat dissipation structure is connected to the second cavity.

10. The energy storage converter according to claim 9, characterized in that, The first air inlet is equipped with multiple second grilles.

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