Wind-liquid coupling cooling energy storage converter

Abstract

The invention belongs to the field of energy storage converters, and discloses a wind-liquid coupling cooling energy storage converter, which is simple in structure, greatly reduces cooling pipelines and interfaces in the converter, greatly reduces the influence on equipment operation safety, and comprises a reactor accommodating assembly and an IGBT liquid cooling plate, the reactor containing assembly comprises a containing cover shell and a containing base, the containing base is provided with a reactor containing groove, a heat exchange channel is formed between the containing cover shell and the containing base, a cooling airflow inlet and a cooling airflow outlet are formed in the heat exchange channel, and the IGBT liquid cooling plate is located beside the reactor containing assembly. A cooling inner cavity is formed in the containing base, the cooling inner cavity is located beside the electric reactor containing groove and is physically isolated from the electric reactor containing groove, the IGBT liquid cooling plate is communicated with the cooling inner cavity, a flow guide fan is arranged on the heat exchange channel, and air flow in the converter shell forms cooling air flow through the flow guide fan. Cooling airflow circularly flows through the heat exchange channel and the PCBs in sequence.

Description

Technical Field

[0001] The invention belongs to the field of energy storage converters, and in particular relates to an energy storage converter with air-liquid coupling cooling. Background Art

[0002] The power storage converter (PCS, the same below) is a key device in the power system. It plays a vital role in the energy storage system. It is mainly responsible for converting the alternating current (AC) in the power grid into direct current (DC) for charging the energy storage battery, and converting the DC back to AC for the power grid or users. The application of energy storage converter is very wide, including but not limited to smoothing the output fluctuation of renewable energy power generation, peak reduction, frequency and phase modulation, energy management, and island operation.

[0003] Since the energy storage converter includes a reactor unit, an IGBT unit and a plurality of PCBs (boards, the same below) for control and / or driving, with the increase in the power density of the energy storage converter and the requirement for a high protection level, it is necessary to effectively cool the energy storage converter in operation so that it can normally and efficiently achieve its expected effect or predetermined working life. At present, the cooling method of the energy storage converter is to use air cooling or liquid cooling to independently cool the reactor unit, the IGBT unit and the PCB.

[0004] However, there are various deficiencies in the implementation of energy storage converters cooled by the above method: 1. The structure is complex, resulting in poor space utilization. 2. There are many cooling pipes and interfaces inside the converter, which increases the risk of leakage of the cooling medium, thereby affecting the safe operation of the equipment. 3. The converter often needs to be equipped with external heat dissipation equipment (such as air conditioners, fans, etc.), so it is necessary to preset the space for accommodating such heat dissipation equipment. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides an energy storage inverter with air-liquid coupled cooling, which not only has a simple structure, but also greatly reduces the cooling pipes and interfaces inside the inverter, greatly reduces the impact on the safe operation of the equipment, and can meet the heat dissipation requirements of the energy storage inverter itself without the need for additional external heat dissipation equipment.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A wind-liquid coupled cooling energy storage converter comprises a converter housing, and a reactor unit, an IGBT unit and a plurality of PCBs which are all located inside the converter housing and are relatively independently arranged, characterized in that it also comprises: a reactor containing assembly, located inside the converter housing, comprising a containing cover and a containing base which is penetrated inside the containing cover, the containing base having a reactor containing groove, the reactor unit being arranged inside the reactor containing groove, and a heat exchange channel being formed between the containing cover and the containing base, and the heat exchange channel being formed with a cooling air flow inlet and a cooling air flow outlet, and the cooling air flow inlet and the cooling air flow outlet are both located inside the converter housing; an IGBT liquid cooling plate, located inside the converter housing and near the reactor containing assembly, the IGB The T unit is arranged on the surface of the IGBT liquid cooling plate; wherein, the accommodating base is formed with a cooling inner cavity, and a first liquid cooling inlet channel and a first liquid cooling outflow channel that are both circulated with the cooling inner cavity, the cooling inner cavity is located near the reactor accommodating slot, and is physically isolated from the reactor accommodating slot, the first liquid cooling inlet channel is used to introduce cooling liquid into the cooling inner cavity, the first liquid cooling outflow channel is used to flow out cooling liquid from the cooling inner cavity, the IGBT liquid cooling plate has a second liquid cooling inlet channel and a second liquid cooling outflow channel, the second liquid cooling inlet channel is connected to the first liquid cooling outflow channel, the second liquid cooling outflow channel is used to flow out cooling liquid, a guide fan is arranged in the heat exchange channel, the airflow in the converter housing forms a cooling airflow through the guide fan, and the cooling airflow circulates through the heat exchange channel and between multiple PCBs in turn.

[0008] Preferably, the converter housing has a shell height direction, a shell width direction and a shell depth direction, the reactor accommodation assembly and the IGBT liquid cooling plate are arranged along the shell width direction, and multiple PCBs are arranged in an "L" shape along the shell height direction and the shell depth direction. The heat exchange channel extends along the shell depth direction and forms a cooling air flow inlet and a cooling air flow outlet at both ends of the extension direction, and at least one of the multiple PCBs is located near the cooling air flow outlet.

[0009] Furthermore, the containing cover shell includes an end shell and a pair of side shells. The end shell is arranged at the end of the containing base along the shell depth direction. The end shell is formed with a cooling air flow outlet. The guide fan is arranged on the end shell. The side shells are respectively arranged on the sides of the containing body along the shell width direction. The side shells are "U"-shaped and extend along the shell depth direction.

[0010] Furthermore, a side heat dissipation fin is formed on the surface of the receiving base, and the side heat dissipation fin extends along the shell width direction and is inserted into the inside of the side shell body.

[0011] Furthermore, the bottom of the accommodating base is also formed with an assembly wing, a bottom stabilizing support and a bottom heat dissipating fin. The assembly wing extends along the shell width direction and has a threaded hole that cooperates with the inverter shell. The bottom stabilizing support and the bottom heat dissipating fin both extend along the shell height direction. There are two bottom stabilizing supports, and the bottom heat dissipating fins are both located between the two bottom stabilizing supports along the shell width direction, thereby forming a heat exchange channel between the inner surface of the side shell and the side heat dissipating fins and between the outer surface of the bottom heat dissipating fins and the bottom stabilizing support.

[0012] Furthermore, the bottom stabilizing foot has a foot mating surface mating with the bottom inner surface of the converter cover.

[0013] Preferably, the cooling inner cavity is formed inside the side wall entity of the accommodating base, and the cooling inner cavity surrounds the reactor accommodating groove.

[0014] Preferably, the accommodating base is also formed with a filled heat-conductive entity, which is arranged on the inner surface of the reactor accommodating groove. The filled heat-conductive entity has a heat-conductive surface, the area of ​​the heat-conductive surface is larger than the area occupied by the filled heat-conductive entity on the surface of the reactor accommodating groove, the heat-conductive surface corresponds to the outer surface of the reactor unit, and the gap with the outer surface of the reactor unit is a predetermined gap.

[0015] Furthermore, the number of filled heat-conductive entities is multiple and formed on the bottom surface of the reactor containing groove, the number of reactor units is multiple, and the multiple reactor units are multiple inductance coils parallel along the shell depth direction, the filled heat-conductive entity is located between two adjacent reactor units, and the filled heat-conductive entity has two symmetrical heat-conductive surfaces, the two heat-conductive surfaces respectively correspond to the outer surfaces of the two reactor units, and the gaps with the corresponding peripheral surfaces of the reactor units are both predetermined gaps.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Because the wind-liquid coupled cooling energy storage converter of the present invention includes a reactor containing assembly and an IGBT liquid cooling plate, the reactor containing assembly includes a containing cover and a containing base, the containing base has a reactor containing groove, and a heat exchange channel is formed between the containing cover and the containing base, and the heat exchange channel is formed with a cooling air flow inlet and a cooling air flow outlet, the IGBT liquid cooling plate is located near the reactor containing assembly, the containing base is formed with a cooling inner cavity, the cooling inner cavity is located near the reactor containing groove and is physically isolated from the reactor containing groove, the IGBT liquid cooling plate is communicated with the cooling inner cavity, a guide fan is provided on the heat exchange channel, the air flow in the converter housing forms a cooling air flow through the guide fan, and the cooling air flow circulates and flows through the heat exchange channel and between multiple PCBs in turn, so that when the liquid cooling medium is introduced into the cooling inner cavity, on the one hand, the liquid cooling medium The liquid cooling medium not only cools down the reactor unit through the solid heat conduction of the accommodating base, but also cools down the gas inside the converter housing flowing through the heat exchange channel, and the cooled gas continues to cool multiple PCBs and IGBT liquid cooling plates after flowing out of the heat exchange channel; on the other hand, the liquid cooling medium directly flows into the IGBT liquid cooling plate after flowing out of the cooling inner cavity, thereby performing secondary cooling on the IGBT unit through the IGBT liquid cooling plate. Therefore, the present invention generates a circulating airflow in the converter housing and makes full use of the cooling performance of the liquid cooling medium, thereby achieving efficient cooling of air-liquid coupling. Not only is the structure simple, but the cooling pipelines and interfaces inside the converter are greatly reduced, which greatly reduces the impact on the safe operation of the equipment, and can meet the heat dissipation requirements of the energy storage converter itself without the need for additional external heat dissipation equipment.

[0018] 2. Because the bottom stabilizing feet of the present invention have foot mating surfaces that cooperate with the bottom inner surface of the inverter housing, the present invention provides a support reference through the foot mating surfaces while having bottom heat dissipating fins, so that when the transfer wing plate is threadedly assembled inside the containing cover, the containing base can be more stable relative to the containing cover.

[0019] 3. Because the accommodating base of the present invention also has a filled heat-conducting entity, the filled heat-conducting entity is arranged on the inner surface of the reactor accommodating groove, the filled heat-conducting entity has a heat-conducting surface, the area of ​​the heat-conducting surface is larger than the area occupied by the filled heat-conducting entity on the surface of the reactor accommodating groove, the heat-conducting surface corresponds to the outer surface of the reactor unit, and the gap with the outer surface of the reactor unit is a predetermined gap, so that the heat-conducting surface increases the surface area of ​​the groove wall (i.e., the heat exchange surface) on the basis of satisfying the safety distance between the groove wall and the reactor unit (guaranteed by the predetermined gap). In actual use, the reactor unit transfers heat to the entity of the containing base in the reactor containing groove through the thermally conductive glue poured in the groove, and then is cooled by the ambient airflow. Although the thermal conductivity of the thermally conductive glue is greater than the thermal conductivity of the air gap, it is still significantly smaller than the thermal conductivity of the containing base, and thus its thermal resistance is still not conducive to the heat dissipation effect of the reactor unit. Therefore, the present invention can significantly reduce the thermal resistance between the reactor unit and the containing base by filling the thermally conductive entity, thereby better dissipating the heat of the reactor unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of an energy storage converter with air-liquid coupled cooling according to an embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of the internal layout of the wind-liquid coupled cooling energy storage converter according to an embodiment of the present invention (part of the PCB is omitted);

[0022] Figure 3 for Figure 1 Exploded diagram of

[0023] Figure 4 An exploded view of a reactor containing assembly according to an embodiment of the present invention;

[0024] Figure 5 A three-dimensional schematic diagram of a receiving base according to an embodiment of the present invention;

[0025] Figure 6 It is a schematic cross-sectional view of a receiving base along the shell length direction of an embodiment of the present invention;

[0026] Figure 7 Schematic diagram of the internal circulating cooling airflow of the wind-liquid coupled cooling energy storage converter according to an embodiment of the present invention (the direction of the arrow is the flow direction of the cooling airflow).

[0027] In the figure: 100, wind-liquid coupled cooling energy storage converter, 10, converter housing, 11, PCB carrier board, D1, shell height direction, D2, shell width direction, D3, shell depth direction, 20, PCB, 30, reactor accommodation assembly, 31, accommodation cover, 311, end housing, 312, side housing, 32, accommodation base, 321, reactor accommodation groove, 322, cooling inner cavity, 323, first liquid cooling inlet Channel, 324, first liquid-cooling outflow channel, 325, side heat dissipation fins, 326, assembly wing plate, 327, bottom stabilizing feet, 328, bottom heat dissipation fins, 329, fill in heat-conducting entities, 3291, heat-conducting surface, 33, guide fan, 33a, mounting bracket, 40, reactor unit, 50, IGBT liquid-cooling plate, 51, second liquid-cooling inflow channel, 52, second liquid-cooling outflow channel, C, connecting pipeline. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the following embodiments and the accompanying drawings specifically illustrate the air-liquid coupled cooling energy storage inverter of the present invention. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0029] like Figures 1 to 3 As shown, the air-liquid coupled cooled energy storage converter 100 in this embodiment includes a converter housing 10, a plurality of PCBs 20, which are all located inside the converter housing 10 and are relatively independently arranged, a reactor unit 40 and an IGBT unit (not shown in the drawings), and a reactor containing assembly 30 and an IGBT liquid cooling plate 50 for constituting a heat dissipation structure. Specifically, the converter housing 10 is a fully enclosed housing, which is formed by a front baffle, a rear baffle and side baffles.

[0030] The converter housing 10 has a shell height direction D1, a shell width direction D2 and a shell depth direction D3. The reactor accommodation assembly 40 and the IGBT liquid cooling plate 50 are arranged along the shell width direction D2, and multiple PCBs 20 are arranged in an "L" shape along the shell height direction D1 and the shell depth direction D3. Specifically, the PCB 20 is arranged inside the converter housing 10 through the PCB carrier plate 11, at least one PCB 20 and the reactor accommodation assembly 40 are arranged along the shell height direction D1, and at least one PCB 20 and the reactor accommodation assembly 40 are arranged along the shell depth direction D3.

[0031] like Figure 4 As shown, the reactor accommodation assembly 30 is located inside the converter housing 10 , and the reactor accommodation assembly 30 includes a accommodation shell 31 , an accommodation base 32 penetrating inside the accommodation shell 31 , and a guide fan 33 .

[0032] A heat exchange channel (not shown in the drawings) extending along the shell depth direction D3 is formed between the accommodating cover 32 and the accommodating base 31, and a cooling air flow inlet (not shown in the drawings) and a cooling air flow outlet (not shown in the drawings) are respectively formed at both ends of the extension of the heat exchange channel, and the cooling air flow inlet and the cooling air flow outlet are both located inside the inverter housing 10, and at least one PCB 20 is located near the cooling air flow outlet.

[0033] The housing case 31 includes an end case 311 and a pair of side cases 312 .

[0034] The end shell 311 is arranged at the end of the accommodating base 32 along the shell depth direction D3, and the end shell 311 is formed with a cooling air flow outlet. The guide fan 33 is arranged on the end shell, that is, the guide fan 33 is arranged on the heat exchange channel. Specifically, the end shell 311 is away from the front baffle of the inverter housing 10, and the guide fan 33 is blocked on the cooling air flow outlet through the mounting bracket 33a.

[0035] A pair of side shells 312 are respectively arranged on opposite sides of the accommodating base 32 along the shell width direction D2. The side shells 312 are both "U"-shaped and extend along the shell depth direction D3. Specifically, the airflow in the inverter housing 10 forms a cooling circulating airflow through the guide fan 33. The cooling circulating airflow circulates through the heat exchange channel and between multiple PCBs 20 in turn, producing the effect of cooling the components.

[0036] like Figure 5 and Figure 6 As shown, the accommodating base 32 has an inductor accommodating groove 321, a cooling inner cavity 322, a first liquid cooling inlet channel 323, a first liquid cooling outlet channel 324, side heat dissipation fins 325, an assembly wing plate 326, a bottom stabilizing support foot 327, a bottom heat dissipation fin 328 and a filled heat conductive entity 329.

[0037] The reactor unit 40 is arranged inside the reactor accommodating groove 321. Specifically, the reactor accommodating groove 321 is a rectangular body, the length of which extends along the shell depth direction D3 and has an upwardly open groove. The reactor accommodating groove 321 is injected with thermal conductive glue (not shown in the drawings), which is a heat-conducting medium between the reactor unit 40 and the accommodating base 32.

[0038] The cooling inner cavity 322 is located near the reactor receiving groove 321. The cooling inner cavity 322 is formed inside the side wall entity of the receiving base 32, that is, it is physically isolated from the reactor receiving groove 321, and the cooling inner cavity 322 is arranged around the reactor receiving groove 321. In this embodiment, the cross-sectional shape of the cooling inner cavity 322 along the shell depth direction D3 is a large-proportioned rectangle, which is convenient for mold forming, and the number of cooling inner cavities 322 is multiple, so that when the cooling liquid is passed into the cooling inner cavity 322, the multiple cooling inner cavities 322 form a heat exchange internal channel for the reactor receiving groove 321 through physical heat conduction.

[0039] The first liquid-cooling inlet channel 323 and the first liquid-cooling outlet channel 324 are both in communication with the cooling inner cavity 322. The first liquid-cooling inlet channel 323 is used to introduce cooling liquid into the cooling inner cavity 322, and the first liquid-cooling outflow channel 324 is used to allow cooling liquid to flow out of the cooling inner cavity 322. Specifically, the first liquid-cooling inlet channel 323 and the first liquid-cooling outflow channel 324 both pass through the front baffle of the converter housing 10, and the first liquid-cooling inlet channel 323 is connected to an external cooling liquid supply device (not shown in the drawings). The cooling liquid flows in the cooling inner cavity 322 in a "U"-shaped trajectory around the reactor containing groove 321. In the present embodiment, the first liquid-cooling inlet channel 323 and the first liquid-cooling outflow channel 324 are both connected to all cooling inner cavities 322.

[0040] The side heat dissipation fins 325 and the mounting wing plates 326 are disposed on the outer surface of the receiving base 32 .

[0041] The side heat dissipating fins 325 are formed at two opposite sides of the receiving base 32 , extend along the case width direction D2 , and are inserted into the inside of the side housing 312 .

[0042] The mounting wing plate 326 , the bottom stabilizing feet 327 and the bottom heat dissipation fins 328 are all formed at the bottom of the receiving base 32 .

[0043] The mounting wing plate 326 extends along the shell width direction D2 and has a threaded hole (not shown in the drawings) that cooperates with the converter housing 10. The bottom stabilizing legs 327 and the bottom heat dissipating fins 328 both extend along the shell height direction D1.

[0044] There are two bottom stabilizing feet 327, and the bottom heat dissipating fins 328 are located between the two bottom stabilizing feet 327 along the shell width direction D2, so that the above-mentioned heat exchange channel is formed between the inner surface of the side shell 312 and the side heat dissipating fins 325, and between the outer surface of the bottom heat dissipating fins 328 and the bottom stabilizing feet 327.

[0045] Specifically, Figure 7As shown, the airflow inside the converter housing 10 forms a heat exchange channel-multiple PCBs 20-heat exchange channel under the guidance of the guide fan 33. When the airflow is in the heat exchange channel, it is cooled by heat exchange with the coolant in the cooling cavity 322; after leaving the heat exchange channel, the airflow exchanges heat with the multiple PCBs 20 and IGBT units by flowing, so that the multiple PCBs 20 and IGBT units are cooled and the airflow itself is heated; then it enters the heat exchange channel to cool down, and the process is circulated, thereby forming a cooling of the reactor unit 40, the multiple PCBs 20 and the IGBT unit.

[0046] The bottom stabilizing foot 327 has a foot mating surface (not shown in the drawings) that cooperates with the bottom inner surface of the inverter housing 10, so that when the assembly wing plate 326 is threadedly assembled with the inverter housing 10, the bottom stabilizing foot 327 provides a support reference for accommodating the base 32 on the inverter housing 10.

[0047] The heat-conducting entity 329 is disposed on the bottom inner surface of the reactor containing groove 321 , and the heat-conducting entity 329 has a heat-conducting surface 3291 that fits in a direction with the outer peripheral surface of the reactor unit 40 .

[0048] The number of filled heat-conducting entities 329 is multiple and formed on the bottom surface of the reactor accommodating groove 321. The number of reactor units 40 is multiple, and the multiple reactor units 40 are multiple parallel inductance coils. The filled heat-conducting entity 329 is located between two adjacent reactor units 40. The filled heat-conducting entity 329 has two symmetrical heat-conducting surfaces 3291, and the heat-conducting surfaces 3291 are fitted with the peripheral surface of the reactor unit 40.

[0049] The IGBT liquid cooling plate 50 is located inside the converter housing 10 and near the reactor containing assembly 30. The IGBT unit is arranged on the upper surface of the IGBT liquid cooling plate 50. The IGBT liquid cooling plate 50 has a second liquid cooling inlet channel 51 and a second liquid cooling outlet channel 52. The second liquid cooling inlet channel 51 is connected to the first liquid cooling outlet channel 324. The second liquid cooling outflow channel 52 is used to flow out the cooling liquid. Specifically, the second liquid cooling inlet channel 51 and the second liquid cooling outflow channel 52 both pass through the front baffle of the converter housing 10. The second liquid cooling inlet channel 51 is connected to the first liquid cooling outflow channel 324 through the connecting pipe C. The cooling liquid flows from the first liquid cooling outflow channel 324 to the second liquid cooling inlet channel 51, and the cooling liquid in the IGBT liquid cooling plate 50 flows out through the second liquid cooling outflow channel 52.

[0050] The above-mentioned implementation modes are preferred cases of the present invention and are not used to limit the protection scope of the present invention. Various deformations or modifications that can be made by ordinary technicians in this field without creative work within the scope of the attached claims are still within the protection scope of this patent.

[0051] For example, in actual practice, a partition may be provided in the converter housing 10 to guide the internal airflow so that the airflow in the converter housing 10 has a better heat dissipation effect on the PCB 20 and the IGBT liquid cooling plate 50 .

Claims

1. An energy storage converter with air-liquid coupling cooling, comprising a converter housing, and a reactor unit, an IGBT unit and a plurality of PCBs which are all located inside the converter housing and are relatively independently arranged, characterized in that: Also includes: A reactor accommodation assembly is located inside the converter housing, comprising a housing shell and a housing base penetrating the housing shell, the housing base having a reactor accommodation slot, the reactor unit being arranged inside the reactor accommodation slot, and a heat exchange channel being formed between the housing shell and the housing base, and the heat exchange channel being formed with a cooling air flow inlet and a cooling air flow outlet, and the cooling air flow inlet and the cooling air flow outlet are both located inside the converter housing; An IGBT liquid cooling plate is located inside the converter housing and near the reactor accommodation assembly, and the IGBT unit is arranged on the surface of the IGBT liquid cooling plate; The receiving base is formed with a cooling inner cavity, and a first liquid cooling inlet channel and a first liquid cooling outlet channel both flowing through the cooling inner cavity. The cooling inner cavity is located near the reactor containing tank and is physically isolated from the reactor containing tank. The first liquid cooling inlet channel is used to introduce cooling liquid into the cooling inner cavity. The first liquid cooling outlet channel is used to flow cooling liquid out of the cooling inner cavity. The IGBT liquid cooling plate has a second liquid cooling inlet channel and a second liquid cooling outlet channel, the second liquid cooling inlet channel is connected to the first liquid cooling outlet channel, and the second liquid cooling outlet channel is used to flow out the cooling liquid. The heat exchange channel is provided with a guide fan, and the airflow in the converter housing is formed into a cooling airflow through the guide fan. The cooling airflow circulates and flows through the heat exchange channel and between the multiple PCBs in sequence.

2. The wind-liquid coupled cooling energy storage converter according to claim 1 is characterized in that: in, The converter housing has a housing height direction, a housing width direction and a housing depth direction. The reactor containing assembly and the IGBT liquid cooling plate are arranged along the shell width direction, the multiple PCBs are arranged in an "L" shape along the shell height direction and the shell depth direction, the heat exchange channel extends along the shell depth direction and forms the cooling air flow inlet and the cooling air flow outlet at both ends of the extension direction, and at least one of the multiple PCBs is located near the cooling air flow outlet.

3. The wind-liquid coupled cooling energy storage converter according to claim 2 is characterized in that: in, The housing shell includes an end shell and a pair of side shells. The end shell is arranged at the end of the accommodating base along the shell depth direction, the end shell is formed with the cooling air flow outlet, and the guide fan is arranged on the end shell. The side shells are respectively arranged on the sides of the storage device along the shell width direction, and the side shells are "U"-shaped and extend along the shell depth direction.

4. The wind-liquid coupled cooling energy storage converter according to claim 3 is characterized in that: in, The surface of the receiving base is formed with side heat dissipation fins, The side heat dissipation fins extend along the housing width direction and are inserted into the side housing.

5. The wind-liquid coupled cooling energy storage converter according to claim 4 is characterized in that: in, The bottom of the receiving base is also formed with an assembly wing plate, a bottom stabilizing support foot and a bottom heat dissipation fin. The assembly wing plate extends along the shell width direction and has a threaded hole that matches the accommodating shell. The bottom stabilizing feet and the bottom heat dissipating fins both extend along the shell height direction, the number of the bottom stabilizing feet is two, and the bottom heat dissipating fins are both located between the two bottom stabilizing feet along the shell width direction, so that the heat exchange channel is formed between the inner surface of the side shell and the side heat dissipating fins, and between the outer surface of the bottom heat dissipating fins and the bottom stabilizing feet.

6. The wind-liquid coupled cooling energy storage converter according to claim 5 is characterized in that: in, The bottom stabilizing foot has a foot matching surface matched with the bottom inner surface of the converter housing.

7. The wind-liquid coupled cooling energy storage converter according to claim 1 is characterized in that: in, The cooling inner cavity is formed inside the side wall entity of the accommodating base, and the cooling inner cavity surrounds the reactor accommodating groove.

8. The wind-liquid coupled cooling energy storage converter according to claim 1 is characterized in that: in, The receiving base also has a heat-conducting entity filled in. The filled heat-conductive entity is arranged on the inner surface of the reactor receiving groove, and the filled heat-conductive entity has a heat-conductive surface, the area of ​​which is larger than the area occupied by the filled heat-conductive entity on the surface of the reactor receiving groove, and the heat-conductive surface corresponds to the outer surface of the reactor unit, and the gap between the filled heat-conductive surface and the outer surface of the reactor unit is a predetermined gap.

9. The wind-liquid coupled cooling energy storage converter according to claim 8, characterized in that: in, The number of the heat-conducting entities filled in is multiple and formed on the bottom surface of the reactor containing groove, The number of the reactor units is multiple, and the multiple reactor units are multiple parallel inductors. The filled heat-conducting entity is located between two adjacent reactor units, and has two symmetrical heat-conducting surfaces, which respectively correspond to the outer surfaces of the two reactor units, and the gaps between the filled heat-conducting surfaces and the peripheral surfaces of the corresponding reactor units are both predetermined gaps.

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