Energy storage converter cabinet with rapid heat dissipation

Abstract

The application belongs to the field of power conversion, and discloses a fast heat dissipation energy storage converter cabinet, which can strengthen the heat dissipation effect of the energy storage converter application and improve the power density of component integration, has an air inlet end face, an air outlet end face and a flow guide assembly, the air inlet end face has a directional air inlet, the air outlet end face has a circuitous air inlet, the flow guide assembly is arranged between the air outlet end face and the energy storage converter, the flow guide assembly comprises a wind collecting channel, a flow guide channel and a booster fan arranged in the flow guide channel, the air outlet end face also has an air outlet, the energy storage converter is arranged along the cabinet depth direction, and the two ends are respectively open to the directional air inlet and communicated with the wind collecting channel, the flow guide channel communicates the wind collecting channel and the air outlet, the cabinet shell further has a circuitous air duct, the energy storage converter is open to the circuitous air inlet through the circuitous air duct, and the circuitous air duct and the wind collecting channel are mutually isolated and respectively communicated with the two ends of the energy storage converter.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of power conversion, and particularly relates to a fast heat dissipation energy storage converter cabinet. BACKGROUND

[0002] The energy storage converter is an electrical system component with power semiconductors as core elements, and its main function is to convert battery power into AC power or convert AC power into battery power. In the conversion process, energy loss inevitably occurs, and the lost energy is ultimately converted into heat energy. A large part of the generated heat energy comes from power semiconductors. In practical applications, the heat energy generated by the energy storage converter during operation needs to be dissipated in an appropriate manner to prevent heat accumulation, which may cause rapid temperature rise of the components in the energy storage converter and its surrounding environment, especially when multiple energy storage converters are used simultaneously. Therefore, the heat dissipation technology of the energy storage converter is a key technology in power conversion, which directly affects the safety and reliability of the energy storage converter application.

[0003] Currently, the heat dissipation method of the energy storage converter is to mount the power semiconductors on the mounting surface of the heat sink, and then use air cooling to assist the heat dissipation fins of the heat sink, so that the related heat is conducted to the fins of the heat sink and then carried away by the airflow, thereby achieving accelerated cooling of the energy storage converter.

[0004] However, this implementation has the following disadvantages. On the one hand, in order to make the accelerated cooling effect more obvious, more axial flow fans should be provided to enhance air cooling. On the other hand, more axial flow fans make it difficult to achieve compact design, i.e., the more axial flow fans, the lower the power density when integrating related components, thus forming a pair of contradictory contradictions. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a fast heat dissipation energy storage converter cabinet, which can enhance the heat dissipation effect of the energy storage converter application while improving the power density when integrating components.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] The energy storage converter cabinet with rapid heat dissipation comprises a cabinet shell and an energy storage converter, the cabinet shell has opposite air inlet end face and air outlet end face, the direction from the air inlet end face to the air outlet end face is taken as the cabinet depth direction, the energy storage converter is detachably arranged in the cabinet shell, and characterized in that: the air inlet end face has a directional air inlet, the air outlet end face has a detour air inlet, the energy storage converter cabinet with rapid heat dissipation further comprises a flow guide assembly arranged in the cabinet shell, the flow guide assembly is arranged between the air outlet end face and the energy storage converter, the flow guide assembly comprises a wind collecting channel, a flow guide channel and a booster fan arranged in the flow guide channel, the air outlet end face further has an air outlet, the energy storage converter is arranged along the cabinet depth direction, and the two ends are respectively open to the directional air inlet and communicated with the wind collecting channel, the flow guide channel communicates the wind collecting channel and the air outlet, and the cabinet shell further has a detour air duct, the energy storage converter is open to the detour air inlet through the detour air duct, and the detour air duct and the wind collecting channel are mutually isolated and respectively communicated with the two ends of the energy storage converter.

[0008] Preferably, the cabinet shell further has a cabinet height direction and a cabinet width direction based on the cabinet depth direction, and the energy storage converter cabinet with rapid heat dissipation further comprises a converter mounting rack, the converter mounting rack has a plurality of bearing plates along the cabinet height direction, the plurality of bearing plates are arranged along the cabinet depth direction, the number of the energy storage converters is at least one, and each energy storage converter is correspondingly and detachably arranged on the bearing plate, the wind collecting channel is arranged along the cabinet height direction and correspondingly communicated with at least one energy storage converter.

[0009] Further, the two ends of the energy storage converter have a converter air inlet and a converter air outlet respectively facing the air inlet end face and the air outlet end face, the wind collecting channel has a plurality of channel air inlets correspondingly communicated with the converter air outlets, and the channel air inlets are openably and closably arranged relative to the converter air outlets.

[0010] Further, the space between two adjacent bearing plates is taken as an interlayer space, and the wind collecting channel partially blocks the interlayer space in the cabinet depth direction.

[0011] Further, the extension length of the converter mounting rack in the cabinet width direction is less than the extension length of the internal space of the cabinet shell in the cabinet width direction, and the converter mounting rack is spaced apart from the air inlet end face by a predetermined distance in the cabinet depth direction.

[0012] Preferably, the air outlet is a horn-shaped air outlet facing the outside.

[0013] Preferably, the inside of the energy storage converter has a high heat generating element, a low heat generating element, an indirect heat dissipation chamber and a direct heat dissipation chamber along the cabinet depth direction, the detour air duct and the wind collecting channel are respectively communicated with the two ends of the direct heat dissipation chamber, the low heat generating element is located in the indirect heat dissipation chamber, the total power of the low heat generating element is less than a predetermined total power, and the total power of the high heat generating element is greater than or equal to the predetermined total power.

[0014] Further, the range of the predetermined total power is 50-200W.

[0015] Further, the high-heat element includes a power inductor located in the direct heat dissipation chamber and a power semiconductor located in the indirect heat dissipation chamber, the inside of the energy storage converter further has heat dissipation fins and heat insulation plates arranged in the cabinet depth direction, the heat dissipation fins are located in the direct heat dissipation chamber and are in thermal conduction connection with the power semiconductor through the mounting plate, the heat insulation plates and the mounting plate are continuously spliced with each other, and the heat insulation plates and the mounting plate separate the energy storage converter to form the indirect heat dissipation chamber and the direct heat dissipation chamber.

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

[0017] 1. Because the energy storage converter cabinet of the present application has a directional air inlet on the air inlet end face, a circuitous air inlet on the air outlet end face, and a flow guide assembly arranged between the air outlet end face and the energy storage converter, the flow guide assembly includes a wind collecting channel, a flow guide channel, and a booster fan arranged in the flow guide channel, the air outlet end face further has an air outlet, the energy storage converter is arranged in the cabinet depth direction and is open to the directional air inlet and in communication with the wind collecting channel at both ends, the flow guide channel is in communication with the wind collecting channel and the air outlet, and the cabinet interior further has a circuitous air duct, the energy storage converter is open to the circuitous air inlet through the circuitous air duct, and the circuitous air duct and the wind collecting channel are isolated from each other and are in communication with both ends of the energy storage converter, respectively, the booster fan causes the airflow of the energy storage converter and the wind collecting channel to flow directionally towards the air outlet, so that, on the one hand, the airflow entering from the directional air inlet blows and dissipates heat for the energy storage converter, and on the other hand, the airflow entering from the circuitous air inlet blows and dissipates heat for the energy storage converter through the circuitous air duct, i.e., the airflow forms a multiple superposition effect for the energy storage converter, and the airflow direction is realized by only one booster fan, which is more conducive to the compact design of multiple components in the energy storage converter, and therefore, the present application can improve the power density of component integration while enhancing the heat dissipation effect of the energy storage converter in use.

[0018] 2. Because the wind collecting channel has a plurality of channel air inlets in communication with the converter air outlet, and the channel air inlets are openably and closably arranged relative to the converter air outlet, the present application can change the airflow intensity flowing through the energy storage converter by opening and closing the channel air inlets.

[0019] 3. Because the converter mounting frame has an extension length in the cabinet width direction that is less than the extension length of the internal space of the cabinet shell in the cabinet width direction, and the converter mounting frame is at a predetermined distance from the air inlet end face in the cabinet depth direction, the converter mounting frame of the present application is open in the circumferential direction except for the part blocked by the wind collecting channel, thereby forming a component part of the circuitous air duct, and thereby greatly enhancing the airflow intensity in the circuitous air duct.

[0020] 4. Because the internal part of the energy storage converter of the present application has high heat generating elements, low heat generating elements, and indirect heat dissipation chambers and direct heat dissipation chambers along the cabinet depth direction, the circuitous air duct and the air collection channel are respectively communicated with the two ends of the direct heat dissipation chamber, and the low heat generating elements are located in the internal part of the indirect heat dissipation chamber, that is, the energy storage converter is separated into the indirect heat dissipation chamber and the direct heat dissipation chamber according to the heat dissipation mode, therefore, the direct heat dissipation chamber of the present application is communicated with the circuitous air duct and the air collection channel, and has a relatively narrow channel section, so that the air flow intensity is obviously increased when the air flow passes through the direct heat dissipation chamber, and then the high heat generating components can be quickly air-cooled through the direct heat dissipation chamber.

[0021] 5. Because the high heat generating elements of the present application include power inductors and power semiconductors, the power inductors are located in the internal part of the direct heat dissipation chamber, the power semiconductors are located in the internal part of the indirect heat dissipation chamber, the internal part of the energy storage converter further has heat dissipation fins and heat insulation plates arranged along the cabinet depth direction, the heat dissipation fins are located in the internal part of the direct heat dissipation chamber and are connected with the power semiconductors through the mounting plate, the heat insulation plates and the mounting plate are continuously spliced with each other, and the heat insulation plates and the mounting plate separate the energy storage converter to form the indirect heat dissipation chamber and the direct heat dissipation chamber, since the power inductors have a relatively complex shape and the overall surface is heated during work, it is more beneficial to heat dissipation to separately arrange the power inductors in the direct heat dissipation chamber, and since the power semiconductors have a rectangular shape and mainly heat through one end face during work, it is not only convenient to install but also beneficial to increase the heat dissipation area to arrange the power semiconductors through the mounting plate to connect the heat dissipation fins, and it is beneficial to concentrate the cold air in the direct heat dissipation chamber to dissipate heat through the heat dissipation fins, therefore, the present application further strengthens the air cooling and heat dissipation of the high heat generating elements by reasonably arranging the power inductors and the power semiconductors, that is, the heat dissipation effect of the energy storage converter is greatly enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 Structure diagram of the energy storage converter cabinet of the present application for rapid heat dissipation Figure One ;

[0023] Figure 2 Structure diagram of the energy storage converter cabinet of the present application for rapid heat dissipation Figure Two ;

[0024] Figure 3 Structure diagram of the energy storage converter cabinet of the present application for rapid heat dissipation

[0025] Figure 4 Structure diagram of the energy storage converter cabinet of the present application for rapid heat dissipation

[0026] Figure 5 Structure diagram of the energy storage converter cabinet of the present application for rapid heat dissipation

[0027] Figure 6 This is a schematic diagram of an energy storage converter according to an embodiment of the present invention. Figure One ;

[0028] Figure 7 This is a schematic diagram of an energy storage converter according to an embodiment of the present invention. Figure Two .

[0029] In the diagram: 100, Rapid heat dissipation energy storage converter cabinet; D1, cabinet depth; D2, cabinet height; D3, cabinet width; W1, first air inlet direction; W2, second air inlet direction; W3, air outlet direction; 10, cabinet shell; 11, air inlet end face; 11a, directional air inlet; 12, air outlet end face; 12a, detour air inlet; 12b, air outlet; 20, converter mounting bracket; 20a, interlayer space; 21, support plate; 30, energy storage converter; 30a, converter air inlet; 30b, converter air outlet; 30c, direct heat dissipation chamber; 30d, indirect heat dissipation chamber; 31, power inductor; 32, power semiconductor; 33, heat dissipation fins; 34, heat insulation board; 35, mounting plate; 40, airflow guiding assembly; 41, air converging channel; 42, airflow guiding channel; 43, booster fan. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of the present invention easier to understand, the following embodiments, in conjunction with the accompanying drawings, specifically illustrate the fast heat dissipation energy storage converter cabinet of the present invention. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0031] like Figures 1 to 5 As shown, the fast heat dissipation energy storage converter cabinet 100 in this embodiment includes a cabinet shell 10, a converter mounting bracket 20, an energy storage converter 30, and a flow channel 40.

[0032] The cabinet shell 10 has an air inlet end face 11 and an air outlet end face 12 that are formed opposite to each other. The direction from the air inlet end face 11 to the air outlet end face 12 is taken as the cabinet depth direction D1. The cabinet height direction D2 and the cabinet width direction D3 of the cabinet shell 10 are formed based on the cabinet depth direction D1. Specifically, the cabinet shell 10 is a hollow shell of a rectangular body 10, and the air inlet end face 11 and the air outlet end face 12 are two opposite end faces.

[0033] The air inlet end face 11 has a directional air inlet 11a, and the air outlet end face 12 has a meandering air inlet 12a and an air outlet 12b. The air outlet 12b is an enlarged flared mouth facing outward. Specifically, the size of the directional air inlet 12a is not limited. In this embodiment, the air inlet end face 11, except for the contour support structure, is a directional air inlet 12a.

[0034] The inside of the cabinet 10 also has a bypass air duct (not shown in the drawings), and the energy storage converter 20 is open to the bypass air inlet 12a through the bypass air duct. In this embodiment, the bypass air duct is formed by the space between the inside of the cabinet 10 and the inner wall of the cabinet 10.

[0035] The converter mounting rack 20 is arranged inside the cabinet 10, and the extension length of the converter mounting rack 20 in the cabinet width direction D3 is less than the extension length of the internal space of the cabinet 10 in the cabinet width direction D3, and the converter mounting rack 20 is at a predetermined distance from the air inlet end face 11 in the cabinet depth direction D1, specifically, a corresponding spacing space is maintained between the outer contour of the converter mounting rack 20 and the inner wall of the cabinet 10, and the airflow can flow smoothly in the spacing space.

[0036] The converter mounting rack 20 has a plurality of bearing plates 21 along the cabinet height direction D2, and the plurality of bearing plates 21 are arranged along the cabinet depth direction D1, and the space between two adjacent bearing plates 21 is taken as an interlayer space 20a, specifically, the energy storage converter 30 is carried in the interlayer space 20a above the bearing plate 21, so that a plurality of energy storage converters 30 form a multi-layer arrangement structure along the cabinet height direction D2, and the two adjacent energy storage converters 30 are at a predetermined distance, and in this embodiment, the bearing plate 21 is formed in a symmetrical manner, and the energy storage converter 30 is carried at both ends in the cabinet width direction D3.

[0037] As shown in Figure 6 and Figure 7 , the energy storage converter 30 is arranged along the cabinet depth direction D1, and the number is at least one, and is correspondingly and detachably arranged on the bearing plate 21 in the cabinet 10, and the two ends of the energy storage converter 30 have a converter air inlet 30a and a converter air outlet 30b respectively facing the air inlet end face 11 and the air outlet end face 12, and an internal direct heat dissipation chamber 30c and an indirect heat dissipation chamber 30d are formed, and the direct heat dissipation chamber 30c and the indirect heat dissipation chamber 30d extend along the cabinet depth direction.

[0038] The inside of the energy storage converter 30 also has a heat insulation plate 34 and a mounting plate 35 arranged along the cabinet depth direction D1, and the heat insulation plate 34 and the mounting plate 35 are continuously spliced with each other, and the heat insulation plate 34 and the mounting plate 35 separate the energy storage converter 30 to form the direct heat dissipation chamber 30c and the indirect heat dissipation chamber 30d, and in this embodiment, the number of heat insulation plates 34 is two, and the mounting plate 35 is located between the two heat insulation plates 34, the heat insulation plate 34 and the mounting plate 35 are sequentially continuous along the cabinet depth direction D1, and the peripheral contour of the heat insulation plate 34 and the mounting plate 35 is closed with the inner wall of the energy storage converter 30, so that the direct heat dissipation chamber 30c and the indirect heat dissipation chamber 30d are isolated from each other.

[0039] The direct heat dissipation chamber 30c and the indirect heat dissipation chamber 30d inside the energy storage converter 30 have high heat generating elements, low heat generating elements and heat dissipation fins 33, the low heat generating elements are located inside the indirect heat dissipation chamber 30d, and the total power of the low heat generating elements is less than a predetermined total power, the total power of the high heat generating elements is greater than or equal to the predetermined total power, and specifically, the range of the predetermined total power is 50-200 W.

[0040] The high heat generating elements include a power inductor 31 and a power semiconductor 32, the power inductor 31 is located inside the direct heat dissipation chamber 30c, the power semiconductor 32 is located inside the indirect heat dissipation chamber 30d, the heat dissipation fins 33 are located inside the direct heat dissipation chamber 30c and extend along the cabinet depth direction D1, and are in thermal conduction connection with the power semiconductor 32 through a mounting plate 35, specifically, the mounting plate 35 is made of high thermal conductivity material, the power semiconductor 32 is surface-mounted on the mounting plate 35, the heat dissipation fins 33 are in thermal conduction connection with the mounting plate 35, and in the indirect heat dissipation chamber 30d, the low heat generating elements are all arranged on the heat insulation plate 34, and the distance between the low heat generating elements and the power semiconductor 32 is greater than a predetermined distance.

[0041] The above arrangement is because the power inductor 31 has a relatively complex shape, and its entire surface is heated during operation, so that it is arranged separately in the direct heat dissipation chamber 30c, which is more conducive to heat dissipation. The power semiconductor 32 has a rectangular shape, and mainly heats through one end face during operation, so that it is connected to the heat dissipation fins 33 through the mounting plate 35 for heat dissipation, which not only facilitates installation but also increases the heat dissipation area. In addition, the power semiconductor 32 and the heat dissipation fins 33 are arranged on both sides of the mounting plate 35, which can prevent the heat dissipation fins 33 from affecting the timely dissipation of the surface heat of the power semiconductor 32. Moreover, since the distance between the low heat generating elements and the power semiconductor 32 is greater than the predetermined distance, the surface heat of the power semiconductor 32 will not affect the surface temperature of the low heat generating elements.

[0042] The flow guide assembly 40 is arranged between the air outlet end face 11 and the energy storage converter 30, and specifically, the flow guide assembly 40 is arranged between the air outlet end face 11 and the converter mounting rack 20.

[0043] The flow guide assembly 40 includes a wind collecting channel 41, a flow guide channel 42 and a booster fan 43.

[0044] The air collection channel 41 is arranged along the cabinet height direction D2 and partially blocks the interlayer space 20a in the cabinet depth direction D1. The two ends of the energy storage converter 30 are respectively open to the directional air inlet 11a and communicate with the air collection channel 41. Specifically, the air collection channel 41 has a plurality of channel air inlets (not shown in the figure) corresponding to the converter air outlet 30b and arranged openable and closable relative to the converter air outlet 30b, that is, the air collection channel 41 communicates with at least one energy storage converter 30. In this embodiment, the air collection channel 41 is a pipe with a rectangular cross section, and the orthographic projection of the energy storage converter 30 and the air collection channel 41 in the cabinet height direction D2 is two rectangles through a stepped transition.

[0045] The air guide channel 42 communicates the air collection channel 41 and the air outlet 12b. In this embodiment, the air guide channel 42 is a pipe extending along the cabinet depth direction D1 and having a rectangular cross section.

[0046] The booster fan 43 is arranged in the air guide channel 43. The booster fan 43 is used to form a predetermined outflow direction of the air flow entering the cabinet shell 10 from the outside by rotation. Specifically, on the one hand, the air flow enters the direct heat dissipation chamber 30c from the directional air inlet 11a along the first air inlet direction W1 and performs air cooling heat dissipation on the components therein, and then enters the air collection channel 41, and flows out of the cabinet shell 10 from the air outlet 12b along the air outlet direction W3 through the air guide channel; on the other hand, the air flow enters the cabinet shell 10 from the bypass air inlet 12a along the second air inlet direction W2, the space between the converter mounting frame 20, the energy storage converter 30 and the air guide assembly 40, that is, the bypass air duct is formed, that is, the bypass air duct and the air collection channel 41 are isolated from each other and respectively communicate with the two ends of the direct heat dissipation chamber 30c, that is, the two ends of the energy storage converter 30, and then the air flow enters the direct heat dissipation chamber 30c from the bypass air duct through the interlayer space 20a, and performs air cooling heat dissipation on the components therein, and then enters the air collection channel 41, and flows out of the cabinet shell 10 from the air outlet 12b along the air outlet direction W3 through the air guide channel 42.

[0047] In addition, the fewer the number of channel air inlets of the air collection channel 41 open relative to the converter air outlet 30b, the higher the flow rate of the above-mentioned two air flows in the cabinet shell 10.

[0048] The above-mentioned embodiments are preferred cases of the present application and do not limit the protection scope of the present application. Various modifications or changes made by those skilled in the art within the scope of the appended claims without creative labor still fall within the protection scope of the present patent.

Claims

1. A fast-heat dissipation energy storage converter cabinet, comprising a cabinet shell and an energy storage converter, wherein the cabinet shell has an air inlet end face and an air outlet end face that are formed opposite to each other, the direction from the air inlet end face to the air outlet end face is defined as the cabinet depth direction, and the energy storage converter is detachably mounted inside the cabinet shell, characterized in that, in: The air inlet face has a directional air inlet, and the air outlet face has a meandering air inlet. The rapid heat dissipation energy storage converter cabinet also includes an airflow guiding component disposed inside the cabinet shell, which is located between the air outlet face and the energy storage converter. The airflow guiding assembly includes an air collecting channel, a flow guiding channel, and a booster fan disposed within the flow guiding channel. The air outlet face also has an air outlet. The energy storage converter is arranged along the depth of the cabinet, with both ends opening to the directional air inlet and communicating with the air collection channel. The guide channel connects the air collection channel and the air outlet. The cabinet also has a detour air duct inside, through which the energy storage converter opens to the detour air inlet. The detour air duct and the air collection channel are isolated from each other and connected to both ends of the energy storage converter. The cabinet shell also has a height direction and a width direction based on the depth direction of the cabinet. The rapid heat dissipation energy storage converter cabinet also includes a converter mounting bracket, which has multiple support plates along the height of the cabinet, and the multiple support plates are all arranged along the depth of the cabinet. The energy storage converter is at least one in number and is correspondingly and detachably mounted on the support plate. The air collection channel is arranged along the height of the cabinet and is connected to the at least one energy storage converter. The space between two adjacent bearing plates is referred to as the interlayer space. The air collection channel partially obstructs the interlayer space in the direction of cabinet depth. The energy storage converter has a converter air inlet and a converter air outlet facing the air inlet end face and the air outlet end face, respectively. The air collection channel has multiple channel air inlets that are connected to the air outlet of the converter, and the channel air inlets are closable relative to the air outlet of the converter.

2. The fast heat dissipation energy storage converter cabinet according to claim 1, characterized in that: in, The extension length of the converter mounting bracket in the width direction of the cabinet is less than the extension length of the internal space of the cabinet shell in the width direction of the cabinet, and the converter mounting bracket is at a predetermined distance from the air inlet end face in the depth direction of the cabinet.

3. The fast heat dissipation energy storage converter cabinet according to claim 1, characterized in that: in, The air outlet is a flared opening facing outwards.

4. The fast heat dissipation energy storage converter cabinet according to claim 1, characterized in that: in, The energy storage converter has a high-heat-generating element, a low-heat-generating element, and an indirect heat dissipation chamber and a direct heat dissipation chamber along the depth of the cabinet. The detour air duct and the air converging channel are respectively connected to the two ends of the direct heat dissipation chamber. The low-heat-generating element is located inside the indirect heat dissipation chamber. The total power of the low-heat-generating element is less than the predetermined total power, and the total power of the high-heat-generating element is greater than or equal to the predetermined total power.

5. The fast heat dissipation energy storage converter cabinet according to claim 4, characterized in that: in, The predetermined total power ranges from 50 to 200W.

6. The fast heat dissipation energy storage converter cabinet according to claim 5, characterized in that: in, The high-heat-generating component includes a power inductor and a power semiconductor. The power inductor is located inside the direct heat dissipation chamber, and the power semiconductor is located inside the indirect heat dissipation chamber. The energy storage converter also has heat dissipation fins and heat insulation plates arranged along the depth direction of the cabinet. The heat dissipation fins are located inside the direct heat dissipation chamber and are thermally connected to the power semiconductor through a mounting plate. The heat insulation plate and the mounting plate are continuously assembled with each other, and the heat insulation plate and the mounting plate separate the energy storage converter to form the indirect heat dissipation chamber and the direct heat dissipation chamber.

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