Heat dissipation air duct structure and energy storage equipment

Abstract

The utility model belongs to the field of energy storage electrical heat dissipation, and discloses a heat dissipation air duct structure and energy storage equipment, and the heat dissipation air duct structure comprises a first heat dissipation air duct and a second heat dissipation air duct. The first heat dissipation air channel and the second heat dissipation air channel are arranged on the electrical cabinet and are used for assisting heat dissipation of electric energy equipment in the electrical cabinet; the first heat dissipation air duct is a circulating heat dissipation air duct; the first heat dissipation air channel is sequentially communicated with an air conditioner air outlet, a capacitor assembly module chamber, a power unit chamber, a direct current side device unit chamber, an independent air channel, an alternating current side device unit chamber and an air conditioner air return port. And the second heat dissipation air duct is sequentially communicated with the first cavity at the top of the electrical cabinet, the air filtering duct, the compartment shunting air duct and the reactor module chamber, and is finally communicated with the air outlet at the bottom of the electrical cabinet. The heat dissipation air duct structure has efficient and stable heat dissipation performance, can improve the IP protection level in the cabinet, facilitates long-term operation of the cabinet, and is beneficial to prolonging the service life of the cabinet.

Description

Technical Field

[0001] The utility model belongs to the field of energy storage electrical heat dissipation, and specifically relates to a heat dissipation air duct structure and energy storage equipment. Background Art

[0002] At present, with the continuous development of the energy storage industry, the power density of electrical cabinets supporting energy storage has also continued to increase. Therefore, the heat dissipation problem of electrical cabinets has become increasingly prominent. At present, conventional electrical cabinet heat dissipation on the market is mainly air-cooled, mainly by sucking cold air from the outside of the cabinet by the fan to dissipate the heat of related heat-consuming power devices. This method cannot guarantee the IP protection level inside the cabinet. Therefore, when the cabinet is in operation for a long time, it is easy to cause dust accumulation inside the cabinet, reducing its original heat dissipation capacity, and also affecting the stability and life of the performance of heat-consuming power devices. At present, there is a lack of a new heat dissipation duct structure to solve the problem of reduced service life of electrical cabinets due to poor performance of conventional heat dissipation duct structures under long-term operating conditions. At the same time, there is also a lack of energy storage equipment that combines a new heat dissipation duct structure to achieve efficient heat dissipation.

[0003] Therefore, a new technology is needed to solve the problem of lack of a new type of heat dissipation duct structure in the prior art; a new technology is needed to solve the problem of lack of a new type of energy storage device in the prior art. Utility Model Content

[0004] In order to solve the above problems in the prior art, the utility model provides a heat dissipation duct structure, which has efficient and stable heat dissipation performance, can improve the IP protection level inside the cabinet, facilitate the long-term operation of the cabinet, and is beneficial to increasing the service life of the cabinet.

[0005] The utility model adopts the following technical solutions:

[0006] A heat dissipation duct structure comprises a first heat dissipation duct and a second heat dissipation duct; the first heat dissipation duct and the second heat dissipation duct are both arranged on an electrical cabinet to assist in heat dissipation of electrical energy equipment inside the electrical cabinet; the first heat dissipation duct is a circulating heat dissipation duct; the first heat dissipation duct is connected in sequence to an air outlet of an air conditioner, a capacitor assembly module room, a power unit room, a DC side device unit room, an independent duct, an AC side device unit room, and an air return duct of an air conditioner; the second heat dissipation duct is connected in sequence to a first cavity at the top of the electrical cabinet, a filter duct, a compartment shunt duct, and a reactor module room, and finally to the air outlet at the bottom of the electrical cabinet.

[0007] Furthermore, the air outlet of the air conditioner and the air return outlet of the air conditioner are arranged on the side of the electrical cabinet.

[0008] Furthermore, the independent air duct is arranged between two reactor modules in the reactor module chamber.

[0009] Further, the chamber-dividing air duct includes at least two types of air ducts, the first type of air duct is an air duct for cooling the capacitor assembly module, and the second type of air duct is an air duct for cooling the power unit;

[0010] The first type of air duct includes a first air cavity and the capacitor assembly module chamber; the upper part of the capacitor assembly module chamber is connected to the filter air duct through the first air cavity; the lower part of the capacitor assembly module chamber is connected to the reactor module chamber;

[0011] The second type of air duct includes a second air cavity and the power unit chamber; the upper part of the power unit chamber is connected to the filter air duct through the second air cavity; and the lower part of the power unit chamber is connected to the reactor module chamber.

[0012] Furthermore, there are at least two capacitor assembly module chambers, and correspondingly, there are at least two first wind cavities; several of the first wind cavities are connected to the air filter duct; and several of the capacitor assembly module chambers are connected to the reactor module chamber.

[0013] Furthermore, at least two power cell chambers are provided, and correspondingly, at least two second air cavities are provided; a number of the second air cavities are connected to the air filter duct; and a number of the power cell chambers are connected to the reactor module chamber.

[0014] Another object of the present invention is to provide an energy storage device combined with a novel heat dissipation duct structure to achieve efficient heat dissipation.

[0015] A kind of energy storage equipment, including an electrical cabinet, a capacitor assembly module, a power unit, a DC side device unit, an AC side device unit, a reactor module, an air conditioning device and the above-mentioned heat dissipation duct structure; the capacitor assembly module is arranged in the capacitor assembly module room; the power unit is arranged in the power unit room; the DC side device unit is arranged in the DC side device unit room; the AC side device unit is arranged in the AC side device unit room; the reactor module is arranged in the reactor module room; the air conditioning device is arranged on the side of the electrical cabinet, and the air conditioning device has the air conditioning outlet and the air conditioning return outlet.

[0016] Furthermore, the capacitor assembly module includes a plurality of capacitor assembly units arranged in parallel in sequence; the capacitor assembly unit includes a plurality of capacitor assemblies arranged in sequence; a heat dissipation space is formed between the plurality of capacitor assemblies arranged in sequence for cooling air to pass through.

[0017] Furthermore, the power unit is provided with a porous air inlet for heat dissipation; at the same time, the power unit is also provided with an air inlet channel for heat dissipation; at the same time, the power unit is also provided with a radiator for heat dissipation.

[0018] Furthermore, the second heat dissipation air duct is provided with a filter element at a location before the filter air duct and at the air inlet of the first cavity for filtering the wind coming in from the external environment; at the same time, a fan is provided between the filter air duct and the chamber diversion air duct.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model discloses a heat dissipation duct structure, comprising a first heat dissipation duct and a second heat dissipation duct. Through the first heat dissipation duct, the capacitor component module, the power unit, the DC side device unit, the reactor module, and the AC side device in the electronic cabinet can be circulated and cooled. The cooling air is blown in from the air outlet of the air conditioner, and the heat dissipation air is finally sucked away from the return air outlet of the air conditioner, thereby realizing the heat dissipation of the first heat dissipation duct of the electrical cabinet. At the same time, the utility model can also dissipate heat through the second heat dissipation duct. The first cavity of the second heat dissipation duct is arranged at the top of the electrical cabinet and is directly connected to the external environment. Natural wind can enter the second heat dissipation duct through the first cavity, and pass through the filtering duct to filter the natural wind and eliminate impurities such as dust. After that, the natural wind can flow through the sub-chamber shunt duct and the reactor module chamber to realize the heat dissipation of the capacitor component module, the power unit, and the reactor module in the electronic cabinet. Finally, the hot air will flow out from the bottom air outlet of the electronic cabinet.

[0021] The utility model provides a heat dissipation duct structure, which realizes efficient heat dissipation through multiple paths. This method can greatly improve the stability of the cabinet system under long-term operating conditions. Among them, the first heat dissipation duct is preferably a circulating heat dissipation duct through a flow air conditioning device, and the second heat dissipation duct has a filter duct, which can filter the natural wind entering the second duct. Therefore, the utility model can improve the IP protection level inside the cabinet, and avoid excessive dust accumulation inside the electronic cabinet, which will cause the service life of the electrical equipment to be reduced.

[0022] The utility model provides an energy storage device which is combined with a novel heat dissipation air duct structure, and can efficiently dissipate heat for electrical energy equipment (such as heat consumption power devices) inside a cabinet, and can increase the service life of the cabinet system itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The technology of the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0024] Figure 1 It is a simplified schematic diagram of the connection of the first heat dissipation duct of the utility model;

[0025] Figure 2 It is a simplified schematic diagram of the connection of the second heat dissipation duct of the utility model;

[0026] Figure 3 is a plan view (simplified schematic diagram) of the spacing space and cooling channels of the capacitor assembly modules in the capacitor assembly module room;

[0027] Figure 4 yes Figure 3 Elevation layout of the center spacing space and cooling channels (simplified schematic);

[0028] Figure 5 It is a plan layout diagram (simplified schematic diagram) of the air inlet, air inlet channel and cooling cavity of the power unit in the power unit room;

[0029] Figure 6 yes Figure 5 A schematic elevation diagram of the connection between the middle cooling cavity and the second air cavity (simplified schematic diagram);

[0030] Figure 7 This is a simplified schematic diagram of the elevation layout of the reactor module room with an independent air duct between the two reactor modules. Figure 7 The reactor module room 33 shown in FIG. 1 is viewed from the side. Figure 4 The reactor module room 33 shown in FIG. 3 is viewed from the front view direction);

[0031] Figure 8 This is a schematic elevation view of the reactor module room with a flow channel arranged on the side of the reactor module (simplified schematic diagram) (the Figure 7 The reactor module room 33 shown in FIG. 1 is viewed from the side. Figure 4 The reactor module chamber 33 shown in FIG. 1 is viewed from the front view direction).

[0032] Reference numerals:

[0033] 1-Electrical cabinet; A-top direction; B-bottom direction;

[0034] 2-first heat dissipation duct; 21-air conditioning outlet; 22-capacitor assembly module room; C-spacing space; D-cooling channel; 23-power unit room; E-air inlet; F-air inlet channel; G-cooling cavity; 24-DC side device unit room; 25-independent air duct; 26-AC side device unit room; 27-air conditioning return air outlet;

[0035] 3-second heat dissipation air duct; 31-first cavity; 32-dividing chamber and diverting air duct; 321-first air cavity; 322-second air cavity; 33-reactor module chamber; K-flow channel; 34-bottom air outlet;

[0036] 4-air conditioning device; 5-capacitor assembly module; 6-power unit; 7-DC side device unit; 8-AC side device unit; 9-reactor module. DETAILED DESCRIPTION

[0037] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the utility model, so as to fully understand the purpose, scheme and effect of the utility model. It should be noted that the embodiments and features in the embodiments in this application can be combined with each other without conflict. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0038] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, etc. used in the present invention are only relative to the relative positional relationship of the components of the present invention in the accompanying drawings.

[0039] Reference Figure 1 and Figure 2 A heat dissipation duct structure includes a first heat dissipation duct 2 and a second heat dissipation duct 3; the first heat dissipation duct 2 and the second heat dissipation duct 3 are both arranged on the electrical cabinet 1, and are used to assist the heat dissipation of the electrical energy equipment inside the electrical cabinet 1; the first heat dissipation duct 2 is a circulating heat dissipation duct; the first heat dissipation duct 2 is connected in sequence to the air outlet 21 of the air conditioner, the capacitor assembly module chamber 22, the power unit chamber 23, the DC side device unit chamber 24, the independent duct 25, the AC side device unit chamber 26, and the air conditioner return air outlet 27; the second heat dissipation duct 3 is connected in sequence to the first cavity 31 at the top of the electrical cabinet 1, the filter duct, the compartment shunt duct 32, the reactor module chamber 33, and finally connected to the air outlet 34 at the bottom of the electrical cabinet 1. Wherein, the top direction of the electrical cabinet 1 refers to Figure 1 As shown in the reference numeral A in FIG. 1 , the bottom direction of the electrical cabinet 1 is referenced Figure 1 As shown in the label B.

[0040] In one embodiment, the first cavity 31 is directly connected to the external environment, and natural wind can enter from all sides thereof. To improve the IP protection level inside the electronic cabinet 1, filters are arranged around the air inlet of the first cavity 31. After the wind is filtered by the filters, the wind can enter the compartment-dividing air duct 32 through the fan; therefore, the air duct located behind the filters and before the compartment-dividing air duct 32 is the filtering air duct; the filtering air duct can be a short section of air duct with a very short axial length ( Figure 1 and 2 Not shown).

[0041] Reference Figure 1 and Figure 2 In one embodiment, the air-conditioning outlet 21 and the air-conditioning return air outlet 27 are arranged on the side of the electrical cabinet 1 .

[0042] Reference Figure 1In one embodiment, the independent air duct 25 is disposed between two reactor modules in the reactor module chamber 33 .

[0043] Reference Figure 2 In one embodiment, the chamber-dividing air duct 32 includes at least two types of air ducts, the first type of air duct is an air duct for cooling the capacitor assembly module, and the second type of air duct is an air duct for cooling the power unit;

[0044] The first type of air duct includes a first air cavity 321 and the capacitor assembly module chamber 22; the upper part of the capacitor assembly module chamber 22 is connected to the filter air duct through the first air cavity 321; the lower part of the capacitor assembly module chamber 22 is connected to the reactor module chamber 33;

[0045] The second type of air duct includes a second air cavity 322 and the power cell chamber 23 ; the power cell chamber 23 is connected to the filter air duct through the second air cavity 322 above; and the power cell chamber 23 is connected to the reactor module chamber 33 below.

[0046] Reference Figure 2 In one embodiment, at least two capacitor assembly module chambers 22 are provided, and correspondingly, at least two first wind cavities 321 are provided; a plurality of the first wind cavities 321 are connected to the filter air duct; a plurality of the capacitor assembly module chambers 22 are connected to the reactor module chamber 33. This design allows the wind to converge in the reactor module chamber 33, dissipate the heat of the reactor module as a whole, and then be discharged from the bottom air outlet 34 of the electronic cabinet 1.

[0047] Reference Figure 2 In one embodiment, at least two power cell chambers 23 are provided, and correspondingly, at least two second air cavities 322 are provided; a plurality of the second air cavities 322 are connected to the filter air duct; a plurality of the power cell chambers 23 are connected to the reactor module chamber 33. This design allows the wind to converge in the reactor module chamber 33, dissipate the heat of the reactor module as a whole, and then be discharged from the bottom air outlet 34 of the electronic cabinet 1.

[0048] Another object of the present invention is to provide an energy storage device combined with a novel heat dissipation duct structure to achieve efficient heat dissipation.

[0049] Reference Figure 1 and Figure 2, an energy storage device, comprising an electrical cabinet 1, a capacitor assembly module 5, a power unit 6, a DC side device unit 7, an AC side device unit 8, a reactor module 9, an air conditioner 4 and the above-mentioned heat dissipation duct structure; the capacitor assembly module 5 is arranged in the capacitor assembly module chamber 22; the power unit 6 is arranged in the power unit chamber 23; the DC side device unit 7 is arranged in the DC side device unit chamber 24; the AC side device unit 8 is arranged in the AC side device unit chamber 26; the reactor module 9 is arranged in the reactor module chamber 33; the air conditioner 4 is arranged on the side of the electrical cabinet 1 (such as the front door panel of the electrical cabinet 1), and the air conditioner 4 has the air conditioning outlet 21 and the air conditioning return outlet 27.

[0050] In one embodiment, the capacitor assembly module includes a plurality of capacitor assembly units arranged in parallel in sequence; the capacitor assembly unit includes a plurality of capacitor assemblies arranged in sequence; a heat dissipation space is formed between the plurality of capacitor assemblies arranged in sequence for cooling air to pass through.

[0051] Reference Figures 1 to 4 In one embodiment, the capacitor assembly module 5 is arranged in the capacitor assembly module chamber 22, and several capacitor assembly modules 5 maintain a set spacing space C, which is used for the first cooling air to pass through; the vertical side of several capacitor assembly modules 5 is provided with a cooling channel D, which is located in the capacitor assembly module chamber 22, and the cooling channel D of the vertical side of the capacitor assembly module 5 is connected with the first air cavity 321 upward, and the cooling channel D is connected with the reactor module chamber 33 downward; preferably, when there are several cooling channels D and first air cavities 321, the cooling channels D are connected to one first air cavity 321 one by one; preferably, the cooling channel D and the spacing space C do not interfere with each other, and the flows of the first cooling air and the second cooling air do not affect each other.

[0052] Reference Figure 5 and Figure 6 In one embodiment, the power unit 6 is provided with a porous air inlet E for heat dissipation; at the same time, the power unit 6 is also provided with an air inlet channel F for heat dissipation; at the same time, the power unit is also provided with a radiator for heat dissipation.

[0053] Reference Figure 1 , Figure 2 , Figure 5 and Figure 6In one embodiment, the air inlet E is connected to the air inlet channel F; the air inlet E and the air inlet channel F are both in the power unit chamber 23; the air inlet E is externally connected to the capacitor assembly module chamber 22; the air inlet channel F is externally connected to the DC side device unit chamber 24; a cooling chamber G is provided on the side of the power unit 6, and the cooling chamber G is located in the power unit chamber 23; the cooling chamber G is upwardly connected to the second air chamber 322, and downwardly connected to the reactor module chamber 33; preferably, when there are several cooling chambers G and the second air chambers 322, the cooling chamber G of each power unit is connected to a second air chamber 322 one by one; preferably, the air inlet E, the air inlet channel F and the cooling chamber G do not interact with each other, and the flows of the first cooling air and the second cooling air do not affect each other.

[0054] Reference Figure 1 , Figure 2 , Figure 7 and Figure 8 In one embodiment, the independent air duct 25 is arranged between two reactor modules in the reactor module chamber 33, and the independent air duct 25 is used for the first cooling air to pass through; the side of each reactor module is provided with a flow channel K for the second cooling air to pass through, and each reactor module has at least two side flow channels K, one of which is connected to the cooling channel D in the capacitor assembly module chamber 22 upward, and the flow channel K is connected to the bottom air outlet 34 downward; the other flow channel K is connected to the cooling cavity G in the power unit chamber 23 upward, and the flow channel K is connected to the bottom air outlet 34 downward; the independent air duct 25 and the flow channel K are both located in the reactor module chamber 33, and the independent air duct 25 and the flow channel K do not interact with each other, and naturally, the flow of the first cooling air and the second cooling air do not affect each other.

[0055] In one embodiment, the DC side device unit includes structures such as a fuse, an isolating switch, a power supply, a copper busbar and a control board.

[0056] In one embodiment, the AC side device unit includes structures such as a transformer, an AC circuit breaker, a copper busbar and a control panel.

[0057] Reference Figures 1 to 8 In one embodiment, the first heat dissipation duct 2 performs heat dissipation as follows:

[0058] A1. The air conditioning device 4 provides the first cooling air, which comes out from the air conditioning outlet 21, flows along the first heat dissipation duct 2, flows to the capacitor assembly module chamber 22, and dissipates heat for the capacitor assembly module 5; at this time, the heat dissipation space of the capacitor assembly can improve the heat dissipation effect, and ventilation and heat dissipation are achieved through the spacing space C;

[0059] A2. The first cooling air continues to flow along the first heat dissipation air duct 2 and flows to the power unit chamber 23 to dissipate heat to the power unit 6. At this time, ventilation and heat dissipation are achieved through the porous air inlet E of the power unit 6 and the air inlet channel F of the power unit.

[0060] A3, the first cooling air continues to flow along the first heat dissipation air duct 2, flows to the DC side device unit chamber 24, and dissipates heat to the DC side device unit 7;

[0061] A4, the first cooling air continues to flow along the first heat dissipation air duct 2, flows to the independent air duct 25, and dissipates heat to the reactor module;

[0062] A5, the first cooling air continues to flow along the first heat dissipation air duct 2, flows to the AC side device unit chamber 26, and dissipates heat to the AC side device unit 8;

[0063] A6, the first cooling air flows back to the air conditioning device 4 from the air conditioning return air port 27;

[0064] A7. Repeat steps A1-A6 to achieve circulating heat dissipation of the energy storage device by the first heat dissipation duct 2.

[0065] In one embodiment, the second heat dissipation air duct 3 is provided with a filter element at a location before the filter air duct and at the air inlet of the first cavity 31 for filtering the air coming in from the external environment; at the same time, a fan is provided between the filter air duct and the chamber diversion air duct 32 for conveying the second cooling air downward.

[0066] Reference Figures 1 to 8 In one embodiment, the second heat dissipation duct 3 performs heat dissipation as follows:

[0067] B1. The second cooling air (natural air) enters from the first cavity 31, is filtered by the filter element, and then enters the chamber-dividing air duct 32 through the fan; when encountering the chamber-dividing air duct 32, the second cooling air has the following two flow paths;

[0068] The first is: the second cooling air enters the "capacitor assembly module chamber 22" from the "first air cavity 321" to dissipate heat to the capacitor assembly module 5. At this time, the heat dissipation space of the capacitor assembly can improve the heat dissipation effect, and the side cooling channel D can achieve ventilation and heat dissipation; then, the second cooling air flows into the reactor module chamber 33;

[0069] The second type is: the second cooling air enters the "power unit room 23" from the "second air cavity 322" to dissipate heat to the power unit 6. At this time, the radiator of the power unit can improve the heat dissipation effect, and the side cooling cavity G can achieve ventilation and heat dissipation; then, the second cooling air flows into the reactor module room 33;

[0070] In both flow paths, the second cooling air finally converges in the reactor module chamber 33 to dissipate heat from the reactor module;

[0071] B2. Finally, the second cooling air flows out from the bottom air outlet 34 to take away the heat.

[0072] A heat dissipation duct structure designed in the utility model improves the IP protection level of the cabinet electrical component area; compared with the conventional duct structure, the utility model greatly improves the stability of the cabinet system and can ensure the long-term operation of the cabinet system; at the same time, the utility model can more finely control the ambient temperature near the "heat-consuming power device (electrical energy equipment)" in the first heat dissipation duct 2 through the air-conditioning device 4, thereby improving the service life of the cabinet system.

[0073] For other contents of the heat dissipation duct structure and energy storage device described in the present invention, please refer to the prior art and will not be described in detail here.

[0074] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A heat dissipation duct structure, characterized in that: It includes a first heat dissipation duct and a second heat dissipation duct; the first heat dissipation duct and the second heat dissipation duct are both arranged on the electrical cabinet to assist the heat dissipation of the electrical energy equipment inside the electrical cabinet; the first heat dissipation duct is a circulating heat dissipation duct; the first heat dissipation duct is connected in sequence to the air outlet of the air conditioner, the capacitor component module room, the power unit room, the DC side device unit room, the independent air duct, the AC side device unit room, and the air return duct of the air conditioner; the second heat dissipation duct is connected in sequence to the first cavity on the top of the electrical cabinet, the filter duct, the compartment shunt duct, the reactor module room, and finally connected to the air outlet at the bottom of the electrical cabinet.

2. The heat dissipation duct structure according to claim 1, characterized in that: The air outlet of the air conditioner and the air return outlet of the air conditioner are arranged on the side of the electrical cabinet.

3. The heat dissipation duct structure according to claim 1, characterized in that: The independent air duct is arranged between two reactor modules in the reactor module room.

4. The heat dissipation duct structure according to claim 1, characterized in that: The chamber-dividing air duct includes at least two types of air ducts, the first type of air duct is an air duct for heat dissipation capacitor assembly modules, and the second type of air duct is an air duct for heat dissipation power units; The first type of air duct includes a first air cavity and the capacitor assembly module chamber; the upper part of the capacitor assembly module chamber is connected to the filter air duct through the first air cavity; the lower part of the capacitor assembly module chamber is connected to the reactor module chamber; The second type of air duct includes a second air cavity and the power unit chamber; the upper part of the power unit chamber is connected to the filter air duct through the second air cavity; and the lower part of the power unit chamber is connected to the reactor module chamber.

5. The heat dissipation duct structure according to claim 4, characterized in that: There are at least two capacitor assembly module chambers, and correspondingly, there are at least two first wind cavities; several of the first wind cavities are connected to the air filter duct; and several of the capacitor assembly module chambers are connected to the reactor module chamber.

6. The heat dissipation duct structure according to claim 4, characterized in that: There are at least two power unit chambers, and correspondingly, there are at least two second air cavities; a number of the second air cavities are connected to the air filter duct; and a number of the power unit chambers are connected to the reactor module chamber.

7. An energy storage device, characterized in that: It comprises an electrical cabinet, a capacitor assembly module, a power unit, a DC side device unit, an AC side device unit, a reactor module, an air conditioning device and a heat dissipation duct structure according to any one of claims 1 to 6; the capacitor assembly module is arranged in the capacitor assembly module room; the power unit is arranged in the power unit room; the DC side device unit is arranged in the DC side device unit room; the AC side device unit is arranged in the AC side device unit room; the reactor module is arranged in the reactor module room; The air conditioning device is arranged on the side of the electrical cabinet, and the air conditioning device has the air conditioning outlet and the air conditioning return outlet.

8. The energy storage device according to claim 7, characterized in that: The capacitor assembly module includes a plurality of capacitor assembly units arranged in parallel in sequence; the capacitor assembly unit includes a plurality of capacitor assemblies arranged in sequence; a heat dissipation space is formed between the plurality of capacitor assemblies arranged in sequence for cooling air to pass through.

9. The energy storage device according to claim 7, characterized in that: The power unit is provided with a porous air inlet for heat dissipation; at the same time, the power unit is also provided with an air inlet channel for heat dissipation; at the same time, the power unit is also provided with a radiator for heat dissipation.

10. The energy storage device according to claim 7, characterized in that: The second heat dissipation air duct is provided with a filter element at a location before the filter air duct and at the air inlet of the first cavity for filtering the wind coming in from the external environment; at the same time, a fan is provided between the filter air duct and the chamber diversion air duct.

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