A heat dissipation structure for an in-cabinet energy storage converter

Abstract

This utility model relates to the field of energy storage equipment technology and discloses a heat dissipation structure for an in-cabinet energy storage converter, comprising: a cabinet with an internal cavity; an energy storage converter disposed within the cavity, having an air outlet and multiple air inlets; a first flow cavity formed between the right or left air inlet of the energy storage converter and the side wall of the cavity, and a second flow cavity formed between the top of the energy storage converter and the top of the cavity, the first and second flow cavities being connected; a third flow cavity formed between the front air inlet and the side wall of the cavity, the second and third flow cavities being connected; the front of the cabinet being connected to the third flow cavity; the right or left side panel of the cabinet being connected to the first flow cavity; and the rear or bottom of the cabinet being connected to the air outlet. This solution addresses the problems of poor space utilization and high cost associated with installing heat dissipation equipment within the cabinet of an energy storage system.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, specifically to a heat dissipation structure for an in-cabinet energy storage converter. Background Technology

[0002] Energy storage converters are an important part of energy storage system operation. During their operation, the temperature will rise and affect their performance. Therefore, heat dissipation equipment such as fans, air conditioners or heat exchangers are usually installed in the cabinet of the energy storage system for heat dissipation. However, this heat dissipation method tends to occupy space in the cabinet, resulting in poor space utilization and high cost. Utility Model Content

[0003] In view of this, the present invention provides a heat dissipation structure for an in-cabinet energy storage converter to solve the problems of poor space utilization and high cost caused by setting up heat dissipation equipment such as fans, air conditioners or heat exchangers in the cabinet of the energy storage system.

[0004] This utility model provides a heat dissipation structure for an in-cabinet energy storage converter, including:

[0005] The cabinet has an internal cavity for storage.

[0006] An energy storage converter is disposed within the receiving cavity and has an air outlet and multiple air inlets. A first flow cavity is formed between the right or left air inlet of the energy storage converter and the side wall of the receiving cavity, and a second flow cavity is formed between the top of the energy storage converter and the top of the receiving cavity. The first flow cavity and the second flow cavity are in communication. A third flow cavity is formed between the front air inlet of the energy storage converter and the side wall of the receiving cavity, and the second flow cavity and the third flow cavity are in communication.

[0007] The front side of the cabinet is connected to the third flow cavity; the right or left side panel of the cabinet is connected to the first flow cavity.

[0008] The rear or bottom side of the cabinet is connected to the air outlet.

[0009] In one alternative embodiment, a first air inlet assembly is provided on the front side of the cabinet corresponding to the third flow cavity.

[0010] In one alternative embodiment, the first air intake assembly includes a louver assembly and a first dustproof assembly arranged sequentially along the air intake direction.

[0011] In one alternative embodiment, a second air inlet assembly is provided on the right or left side of the cabinet corresponding to the first flow cavity.

[0012] In one alternative embodiment, the second air intake assembly includes a second dustproof assembly, and the side plate communicates with the first flow cavity through the second dustproof assembly.

[0013] In one optional embodiment, the second air inlet assembly further includes a waterproof frame located on the air outlet side of the second dustproof assembly to prevent water from flowing into the first flow cavity;

[0014] And / or, the pore density of the first dustproof component is greater than the pore density of the second dustproof component.

[0015] In one optional embodiment, the waterproof frame is provided with a fourth flow cavity, and the side of the waterproof frame facing the second dustproof component is provided with an air inlet communicating with the fourth flow cavity. The bottom of the fourth flow cavity is provided with a guide slope, and the side plate is provided with a drain hole corresponding to the guide slope.

[0016] The top of the waterproof frame is provided with an air outlet that communicates with the fourth flow cavity; a first baffle is provided on the side of the air outlet away from the air inlet, and a second baffle and a third baffle are provided on the side of the air outlet close to the air inlet; the second baffle is inclined downward and extends below the first baffle, and the third baffle is inclined upward and extends above the first baffle, forming a labyrinthine air duct at the air outlet.

[0017] In one optional embodiment, the waterproof frame has a mounting groove on the side facing the side plate, and the side plate has an opening corresponding to the mounting groove. The mounting groove and the opening form a mounting cavity, and a mounting frame is fitted into the mounting cavity. The mounting frame has a plurality of second air inlets, and the second dustproof component is snapped into the mounting frame.

[0018] In one optional embodiment, the mounting frame includes a mounting plate and bent plates disposed on the upper and lower sides of the mounting plate. Two first limiting plates are symmetrically provided on the two bent plates respectively. The position of the first limiting plate corresponds to the position of the second air inlet, and a sliding groove is formed between the first limiting plate and the mounting plate. The second dustproof component is slidably inserted into the sliding groove. Two second limiting plates (19) are symmetrically provided on the inner sides of the two bent plates (18). The second limiting plates (19) are used to abut against the second dustproof component for limiting.

[0019] And / or, the mounting cavity has a recessed slot on the side wall near the rear side of the cabinet; guide plates are provided on both the upper and lower sides of one end face of the mounting frame, and the guide plates are adapted to be inserted into the slot; a connecting groove is provided on the outer side wall of the other end of the mounting frame; and a screw for connecting with the waterproof frame is provided in the connecting groove.

[0020] In one optional embodiment, the first flow cavity and the second flow cavity are connected by a flow port, the first flow cavity is connected to the end of the side panel near the front side of the cabinet, and the flow port is located at the end of the first flow cavity away from the front side of the cabinet;

[0021] And / or, the top of the energy storage converter is provided with a grid baffle at the connection between the second flow chamber and the third flow chamber, and the grid baffle is provided with a plurality of openings along its length; the openings of the plurality of openings are of different sizes.

[0022] The technical solution of this utility model has the following advantages:

[0023] This invention utilizes an energy storage converter to form a first flow chamber, a second flow chamber, and a third flow chamber within the housing cavity and on the inner wall of the housing cavity, thereby creating multiple flow channels on the periphery of the energy storage converter. A fan within the outer cavity channel of the energy storage converter provides power for the airflow through these multiple flow channels. This allows a portion of the airflow to directly enter the third flow chamber from the front of the cabinet, while another portion flows sequentially through the first, second, and third flow chambers from the side plate, then through the front air inlet, the outer cavity channel, and the air outlet of the energy storage converter before being discharged from the rear or bottom of the cabinet. By utilizing airflow, the energy storage converter is cooled in multiple channels and directions, increasing the contact area and travel distance between the airflow and the energy storage converter. This achieves full convection heat exchange of the gaseous fluid, effectively reducing the temperature of the housing cavity and the energy storage converter. It avoids the need for additional cooling equipment such as fans and heat exchangers, reducing noise and cost, and improving space utilization. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a partial exploded view of the heat dissipation structure of an in-cabinet energy storage converter according to an embodiment of this utility model;

[0026] Figure 2for Figure 1 A schematic diagram of the overall structure of an in-cabinet energy storage converter is shown.

[0027] Figure 3 This is a structural schematic diagram of the side panel of an embodiment of the present utility model from a first perspective;

[0028] Figure 4 This is a structural schematic diagram of the side plate of an embodiment of the present invention from a second perspective;

[0029] Figure 5 This is a structural schematic diagram of the mounting frame of this utility model from a third perspective;

[0030] Figure 6 This is a structural schematic diagram of the mounting frame of this utility model from a fourth perspective.

[0031] Figure 7 This is an exploded view of the mounting frame according to an embodiment of the present utility model;

[0032] Figure 8 This is a cross-sectional view of the side panel of an embodiment of the present invention from the fifth perspective;

[0033] Figure 9 for Figure 8 Enlarged view of point A in the image;

[0034] Figure 10 This is a cross-sectional view of the cabinet in an embodiment of the present invention from the sixth perspective;

[0035] Figure 11 for Figure 10 Enlarged view of point B in the image;

[0036] Figure 12 This is a cross-sectional view of the cabinet in an embodiment of the present invention from the seventh perspective;

[0037] Figure 13 for Figure 12 Enlarged view of point C in the image.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. Cabinet; 2. Energy storage converter; 3. Air inlet; 4. First flow chamber; 5. Second flow chamber; 6. Third flow chamber; 7. Front door panel; 8. First air inlet; 9. Side panel; 10. Second air inlet; 11. Second dustproof component; 12. Waterproof frame; 13. Air inlet; 14. Guide slope; 15. Air outlet; 16. Mounting plate; 17. First limiting plate; 18. Bending plate; 19. Second limiting plate; 20. Grille baffle; 21. Drain hole; 22. First baffle; 23. Second baffle; 24. Third baffle; 25. Guide insert; 26. Screw; 27. Limiting post. Detailed Implementation

[0040] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0041] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0044] The following is combined with Figures 1 to 13 The following describes embodiments of the present invention.

[0045] According to an embodiment of this utility model, a heat dissipation structure for an in-cabinet energy storage converter 2 is provided, comprising: a cabinet 1, which has an internal cavity; an energy storage converter 2, which is disposed in the cavity and has an air outlet and multiple air inlets 3; a first flow cavity 4 is formed between the right or left air inlet 3 of the energy storage converter 2 and the side wall of the cavity, and a second flow cavity 5 is formed between the top of the energy storage converter 2 and the top of the cavity, wherein the first flow cavity 4 and the second flow cavity 5 are connected; a third flow cavity 6 is formed between the front air inlet 3 of the energy storage converter 2 and the side wall of the cavity, wherein the second flow cavity 5 and the third flow cavity 6 are connected; the front side of the cabinet 1 is connected to the third flow cavity 6; the right or left side plate 9 of the cabinet 1 is connected to the first flow cavity 4; and the rear side or bottom of the cabinet 1 is connected to the air outlet.

[0046] It should be noted that the front, back, left, and right directions of cabinet 1 are as follows: Figure 1 As shown; the energy storage converter 2 includes an upper cavity and a lower cavity. The upper cavity is a sealed space in which key components such as PCBA are installed. The lower cavity is equipped with a heat sink, a fan, etc. The heat from the components in the upper cavity is conducted to the heat sink in the lower cavity. The fan in the lower cavity blows on the heat sink, thereby reducing the temperature of the components in the upper cavity. The lower cavity is the external cavity air duct. The external cavity air duct is connected to the front air inlet 3 and air outlet of the energy storage converter 2.

[0047] The energy storage converter 2 (PCS) is a bidirectional energy conversion device that connects the battery system to the power grid.

[0048] In this embodiment, the energy storage converter 2 forms a first flow cavity 4, a second flow cavity 5, and a third flow cavity 6 within the housing cavity and on the inner wall of the housing cavity, thereby forming multiple flow channels on the periphery of the energy storage converter 2. During operation, the fan in the outer cavity channel of the energy storage converter 2 is activated, providing power for the airflow in multiple directions of the flow channels. On one hand, the airflow directly enters the third flow cavity 6 from the front side of the cabinet 1, then enters the outer cavity channel of the energy storage converter 2 from the front air inlet 3, and then exits from the air outlet of the energy storage converter 2 through the rear side or bottom of the cabinet 1, thus achieving heat dissipation for the energy storage converter 2. On the other hand, the airflow is discharged from the side plate 9. The air enters the first flow chamber 4, then flows into the second flow chamber 5, and then into the third flow chamber 6. After passing through the front air inlet 3, the outer cavity air duct and the air outlet of the energy storage converter 2 in sequence, it is discharged from the rear or bottom of the cabinet 1. The air flow is used to achieve multi-channel and multi-directional heat dissipation of the energy storage converter 2, which increases the contact area and stroke between the airflow and the energy storage converter 2, realizes full convection heat exchange of gaseous fluid, effectively reduces the temperature of the housing cavity and the energy storage converter 2, and provides power for the airflow through the built-in fan of the energy storage converter 2, avoiding the need for additional fans, heat exchangers and other heat dissipation equipment, reducing noise and cost, and improving space utilization.

[0049] Preferably, the energy storage converter 2 is located on the right side near the cabinet 1, and a first flow cavity 4 is formed between the right air inlet 3 of the energy storage converter 2 and the side wall of the receiving cavity.

[0050] Specifically, the rear side of the cabinet 1 is provided with an air outlet that communicates with the air outlet end so as to exhaust hot air and achieve convection heat exchange.

[0051] In one embodiment, the front side of the cabinet 1 is provided with a first air inlet assembly corresponding to the third flow cavity 6.

[0052] In this embodiment, by setting a first air inlet component to protect the air inlet, the airflow entering the cavity can be filtered to avoid internal dirt and affect the service life of the energy storage converter 2 and other electrical components.

[0053] Specifically, the front side of the cabinet 1 is provided with multiple first air inlets 8, which are connected to the third flow chamber 6 through the first air inlets 8.

[0054] Specifically, the front side of the cabinet 1 is provided with a front door panel 7, and the first air inlet 8 is located on the front door panel 7. The front door panel 7 can be opened and closed and is connected to the cabinet 1 for easy maintenance.

[0055] In one embodiment, the first air intake assembly includes a louver assembly and a first dustproof assembly arranged sequentially along the air intake direction.

[0056] In this embodiment, the louvered assembly ensures normal airflow while preventing external water from entering the cavity, thus providing a waterproof function. In addition, the first dustproof assembly filters the airflow to prevent internal dirt from affecting the service life of the energy storage converter 2 and other electrical components.

[0057] Specifically, the louver assembly can be a conventional louver.

[0058] Specifically, the first dustproof component includes a first frame and a first dustproof mesh disposed within the first frame.

[0059] Specifically, the first dustproof net is made of polyurethane dustproof cotton.

[0060] In one embodiment, such as Figure 1 , Figure 3 and Figure 4 As shown, the inner side of the side plate 9 is provided with a second air inlet assembly corresponding to a plurality of second air inlets 10.

[0061] In this embodiment, by setting a second air inlet component and protecting the second air inlet hole 10, the airflow entering the containment cavity can be filtered to prevent particulate matter and dust carried in the airflow from entering the containment cavity and causing dirt, which would affect the service life of the energy storage converter 2 and other electrical components.

[0062] In one embodiment, such as Figure 6 and Figure 7 As shown, the second air inlet assembly includes a second dustproof assembly 11, and the side plate 9 is connected to the first flow cavity 4 through the second dustproof assembly 11.

[0063] In this embodiment, the airflow is filtered by the second dustproof component 11 to prevent particulate matter and dust carried in the airflow from entering the containment cavity and causing dirt, which would affect the service life of the energy storage converter 2 and other electrical components.

[0064] In one embodiment, such as Figure 1 , Figure 3 and Figure 4 As shown, the second air inlet assembly also includes a waterproof frame 12, which is located on the air outlet side of the second dustproof assembly 11 to prevent water from flowing into the first flow cavity 4.

[0065] It should be noted that the waterproof frame 12 is connected to the side panel 9.

[0066] In this embodiment, by setting a waterproof frame 12, external water is prevented from splashing into the cavity and affecting the use of electrical components in the entire electrical compartment, thereby improving the protection effect.

[0067] Specifically, the second dustproof component 11 includes a second frame and a second dustproof net disposed within the second frame.

[0068] Specifically, the second dustproof net is made of polyurethane dustproof cotton.

[0069] In one embodiment, the pore density of the first dustproof component is greater than the pore density of the second dustproof component 11.

[0070] In this embodiment, by setting the pore density of the first dustproof component to be greater than that of the second dustproof component 11, that is, the air intake resistance of the front side of the cabinet 1 is greater than that of the side panel 9, some airflow is diverted to the side panel 9 of the cabinet 1 to ensure that the side panel 9 has sufficient air intake. The specific pore density can be set according to the actual situation. Preferably, the pore density of the first dustproof component can be set to 45ppi, and the pore density of the second dustproof component 11 can be set to 35ppi.

[0071] In one embodiment, such as Figure 1 , Figure 3 , Figure 4 , Figures 8 to 11 As shown, the waterproof frame 12 has a fourth flow cavity. The side of the waterproof frame 12 facing the second dustproof component 11 has an air inlet 13 that communicates with the fourth flow cavity. The bottom of the fourth flow cavity has a guide slope 14, and the side plate 9 has a drain hole 21 corresponding to the guide slope 14. The top of the waterproof frame 12 has an air outlet 15 that communicates with the fourth flow cavity. The side of the air outlet 15 away from the air inlet 13 has a first baffle 22. The side of the air outlet 15 near the air inlet 13 has a second baffle 23 and a third baffle 24. The second baffle 23 is inclined downward and extends below the first baffle 22. The third baffle 24 is inclined upward and extends above the first baffle 22. The first baffle 22, the second baffle 23 and the third baffle 24 form a labyrinth-like air duct at the air outlet 15.

[0072] It should be noted that the waterproof frame 12 has a channel connecting the guide slope 14 and the drainage hole 21.

[0073] In this embodiment, an air inlet 13 is provided on the waterproof frame 12 facing the second dustproof component 11. When air is introduced, the airflow passing through the second dustproof component 11 enters the fourth flow chamber through the air inlet 13, and then enters the first flow chamber 4 from the fourth flow chamber through the labyrinthine air duct at the air outlet 15 from bottom to top. Waterproofing is achieved by using gravity and the first baffle 22, the second baffle 23 and the third baffle 24 to form a serpentine labyrinthine air duct. Furthermore, a guide slope 14 is provided at the bottom of the air inlet 13 to guide the fluid to flow along the expected path, while the water entering the waterproof frame 12 flows down along the guide slope 14 to the drain hole 21 for discharge.

[0074] Specifically, the second baffle 23 and the waterproof frame 12 are integrated to improve the overall structural strength.

[0075] In one embodiment, such as Figures 1 to 7 as well as Figure 9 As shown, the waterproof frame 12 has an installation groove on the side facing the side plate 9, and the side plate 9 has an opening corresponding to the installation groove. The installation groove and the opening form an installation cavity. An installation frame is fitted inside the installation cavity. Multiple second air inlets 10 are provided on the installation frame. The second dustproof component 11 is snapped into the installation frame.

[0076] It should be noted that the second air inlet 10 is connected to the second dustproof component 11.

[0077] In this embodiment, the mounting frame is embedded in the mounting cavity, so that the outer wall of the mounting frame is flush with the outer wall of the side plate 9, reducing the space occupied and improving the aesthetics. At the same time, the second dustproof component 11 is set on the mounting frame, which facilitates installation and maintenance, and makes it easy to replace, disassemble and clean the second dustproof component 11.

[0078] In one embodiment, such as Figure 6 and Figure 7 As shown, the mounting frame includes a mounting plate 16 and bent plates 18 disposed on the upper and lower sides of the mounting plate 16. Two first limiting plates 17 are symmetrically provided on the two bent plates 18 respectively. The position of the first limiting plate 17 corresponds to the position of the second air inlet 10, and a sliding groove is formed between the first limiting plate 17 and the mounting plate 16. The second dustproof component 11 is adapted to be slidably inserted into the sliding groove. Two second limiting plates 19 are symmetrically provided on the inner side of the two bent plates 18 respectively. The second limiting plates 19 are used to abut against the second dustproof component 11 for limiting.

[0079] It should be noted that the first limiting plate 17 is parallel to the mounting plate 16, and the bending plate 18 forms a 90-degree angle with the mounting plate 16.

[0080] In this embodiment, the bending plate 18 and the first limiting plate 17 form grooves on the upper and lower sides of the mounting plate 16. During installation, the second dustproof component 11 is slidably inserted into the grooves along the length of the mounting plate 16 until it abuts the second limiting plate 19, which facilitates installation and disassembly.

[0081] Specifically, the second limiting plate 19 is located on the side of the mounting plate 16 near the front door panel 7. The mounting groove is provided with a limiting post 27 on the side of the second dustproof component 11 away from the second limiting plate 19, so that during installation, the limiting post 27 abuts against the second dustproof component 11 and cooperates with the second limiting plate 19 to clamp the second dustproof component 11, thereby improving stability.

[0082] In one embodiment, such as Figure 12 and Figure 13 As shown, the mounting cavity has a recessed slot on the side wall near the rear side of the cabinet 1; guide plates 25 are provided on the upper and lower sides of one end face of the mounting frame, and the guide plates 25 are adapted to be inserted into the slot; a connecting groove is provided on the outer side wall of the other end of the mounting frame; a screw 26 for connecting with the waterproof frame 12 is provided in the connecting groove.

[0083] In this embodiment, when installing the frame, the guide plate 25 is first inserted into the slot, then the frame is embedded in the installation cavity, and then the frame is connected to the waterproof frame 12 by screws 26 in the connecting groove. The connecting groove is recessed to prevent the screws 26 from protruding from the side plate 9. When multiple cabinets 1 are arranged side by side and the interval between two adjacent cabinets 1 is small, the connecting groove can provide space to facilitate the installation and removal of screws 26.

[0084] Specifically, screw 26 is riveted onto mounting plate 16 and connected to mounting cavity.

[0085] Specifically, the guide insert 25 and the bending plate 18 are integrally formed.

[0086] Specifically, screw 26 is a non-removable screw, which is convenient for installation and disassembly, and can be tightened and loosened manually.

[0087] In one embodiment, such as Figure 1 As shown, the first flow cavity 4 and the second flow cavity 5 are connected by a flow port. The first flow cavity 4 is connected to the end of the side panel 9 near the front side of the cabinet 1, and the flow port is located at the end of the first flow cavity 4 away from the front side of the cabinet 1.

[0088] In this embodiment, the flow port is located at the front end of the first flow cavity 4 away from the cabinet 1, which extends the flow path of the airflow. This allows the airflow to exchange heat through the entire side wall of the energy storage converter 2 in the front-back and up-down directions when it enters the first flow cavity 4, increasing the heat exchange area and further improving the heat dissipation effect.

[0089] Specifically, the waterproof frame 12 is welded to the side panel 9, and after the surface is sprayed, glue is applied at the joint to ensure waterproof performance.

[0090] In one embodiment, a grid baffle 20 is provided on the top of the energy storage converter 2 at the connection between the second flow chamber 5 and the third flow chamber 6. The grid baffle 20 has multiple openings along its length, and the opening sizes of the multiple openings are different.

[0091] In this embodiment, a grid baffle 20 is provided at the connection between the second flow cavity 5 and the third flow cavity 6. The grid baffle 20 has openings of different sizes according to the heat generation at different positions of the energy storage converter 2. For example, if the top left side of the energy storage converter 2 generates the most heat and has the highest temperature, the openings on the left side of the grid baffle 20 will be larger or denser, while the openings on the right side will be smaller or sparser, so that more air flows through the top left side of the energy storage converter 2. Conversely, if the top right side or the middle of the energy storage converter 2 generates the most heat, the size and density of the openings on the grid baffle 20 will be adjusted accordingly. Therefore, the size and density of the openings at different positions can be adjusted according to the actual situation, so that the gaseous fluid flows from the second flow cavity 5 to the third flow cavity 6 in a gradient under the adjustment of the grid baffle, thereby improving the heat dissipation efficiency.

[0092] Specifically, airflow can also be discharged through the bottom of cabinet 1, and the air outlet of energy storage converter 2 is connected to the bottom of cabinet 1 near the rear.

[0093] The specific working principle of the heat dissipation structure of the cabinet-mounted energy storage converter 2 provided in this embodiment is as follows: During operation, the fan in the outer cavity channel of the energy storage converter 2 is activated, providing power for the airflow in multiple directions of the flow channel. A portion of the airflow directly enters the third flow cavity 6 from the front door panel 7 through the first air inlet 8, the louver assembly, and the first dustproof assembly, and then enters the outer cavity air duct of the energy storage converter 2 from the front air inlet 3. Finally, it is discharged from the air outlet of the energy storage converter 2 through the rear or bottom of the cabinet 1, thereby achieving heat dissipation for the energy storage converter 2; Figure 1As shown by the arrow trajectory, another part of the airflow enters the first flow chamber 4 through the second air inlet 10, the second dustproof component 11, and the waterproof frame 12, then enters the second flow chamber 5 through the first flow chamber 4, and then flows into the third flow chamber 6 from the front end of the second flow chamber 5. After passing through the front air inlet 3 of the energy storage converter 2, the outer cavity air duct, and the air outlet of the energy storage converter 2 in sequence, it is discharged from the rear or bottom of the cabinet 1. The airflow is used to achieve multi-channel and multi-directional heat dissipation of the energy storage converter 2, which increases the contact area and stroke between the airflow and the energy storage converter 2, and realizes full convective heat exchange between the gaseous fluid and the shell wall of the energy storage converter 2. This effectively reduces the temperature of the housing cavity and the energy storage converter 2. At the same time, the fan built into the energy storage converter 2 provides power for the airflow, avoiding the need for additional fans, heat exchangers and other heat dissipation equipment, reducing noise and cost, and improving space utilization.

[0094] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A heat dissipation structure of an energy storage converter in a cabinet, characterized in that, include: Cabinet (1), with an internal cavity; An energy storage converter (2) is disposed in the cavity and has an air outlet and multiple air inlets (3); a first flow cavity (4) is formed between the right or left air inlet (3) of the energy storage converter (2) and the side wall of the cavity; a second flow cavity (5) is formed between the top of the energy storage converter (2) and the top of the cavity; the first flow cavity (4) and the second flow cavity (5) are connected; a third flow cavity (6) is formed between the front air inlet (3) of the energy storage converter (2) and the side wall of the cavity; the second flow cavity (5) and the third flow cavity (6) are connected. The front side of the cabinet (1) is connected to the third flow cavity (6); the right or left side panel (9) of the cabinet (1) is connected to the first flow cavity (4); The rear side or bottom of the cabinet (1) is connected to the air outlet.

2. The heat dissipation structure of the cabinet energy storage converter according to claim 1, characterized in that, The front side of the cabinet (1) is provided with a first air inlet assembly corresponding to the third flow cavity (6).

3. The heat dissipation structure of the cabinet energy storage converter according to claim 2, characterized in that, The first air intake assembly includes a louver assembly and a first dustproof assembly arranged sequentially along the air intake direction.

4. The heat dissipation structure of the cabinet energy storage converter according to claim 3, characterized in that, The cabinet (1) is provided with a second air inlet assembly on the right or left side corresponding to the first flow cavity (4).

5. The heat dissipation structure of the cabinet-mounted energy storage converter according to claim 4, characterized in that, The second air intake assembly includes a second dustproof assembly (11), and the side plate (9) is connected to the first flow cavity (4) through the second dustproof assembly (11).

6. The heat dissipation structure of the cabinet energy storage converter according to claim 5, characterized in that, The second air inlet assembly also includes a waterproof frame (12), which is located on the air outlet side of the second dustproof assembly (11) to prevent water from flowing into the first flow cavity (4); And / or, the pore density of the first dustproof component is greater than the pore density of the second dustproof component (11).

7. The heat dissipation structure of the cabinet energy storage converter according to claim 6, characterized in that, The waterproof frame (12) is provided with a fourth flow cavity. The waterproof frame (12) is provided with an air inlet (13) communicating with the fourth flow cavity on the side facing the second dustproof component (11). The bottom of the fourth flow cavity is provided with a guide slope (14). The side plate (9) is provided with a drain hole (21) corresponding to the guide slope (14). The top of the waterproof frame (12) is provided with an air outlet (15) that communicates with the fourth flow cavity; a first baffle (22) is provided on the side of the air outlet (15) away from the air inlet (13), and a second baffle (23) and a third baffle (24) are provided on the side of the air outlet (15) close to the air inlet (13); the second baffle (23) is inclined downward and extends below the first baffle (22), and the third baffle (24) is inclined upward and extends above the first baffle (22). The first baffle (22), the second baffle (23) and the third baffle (24) form a labyrinth-like air duct at the air outlet (15).

8. The heat dissipation structure of the cabinet energy storage converter according to claim 6, characterized in that, The waterproof frame (12) has an installation groove on the side facing the side plate (9). The side plate (9) has an opening corresponding to the installation groove. The installation groove and the opening form an installation cavity. An installation frame is fitted into the installation cavity. The installation frame has multiple second air inlets (10). The second dustproof component (11) is snapped into the installation frame.

9. The heat dissipation structure of the cabinet energy storage converter according to claim 8, characterized in that, The mounting frame includes a mounting plate (16) and bent plates (18) disposed on the upper and lower sides of the mounting plate (16). Two first limiting plates (17) are symmetrically provided on the two bent plates (18). The position of the first limiting plate (17) corresponds to the position of the second air inlet (10), and a sliding groove is formed between the first limiting plate (17) and the mounting plate (16). The second dustproof component (11) is adapted to be slidably inserted into the sliding groove. Two second limiting plates (19) are symmetrically provided on the inner side of the two bent plates (18). The second limiting plates (19) are used to abut against the second dustproof component (11) for limiting. And / or, the mounting cavity has a recessed slot on the side wall near the rear side of the cabinet (1); guide inserts (25) are provided on the upper and lower sides of one end face of the mounting frame, the guide inserts (25) are adapted to be inserted into the slot, and a connecting groove is provided on the outer side wall of the other end of the mounting frame; the connecting groove is provided with screws (26) for connecting with the waterproof frame (12).

10. The heat dissipation structure of an energy storage converter in a cabinet according to any one of claims 1 to 9, characterized in that, The first flow cavity (4) and the second flow cavity (5) are connected by a flow port. The first flow cavity (4) is connected to the end of the side panel (9) near the front side of the cabinet (1). The flow port is located at the end of the first flow cavity (4) away from the front side of the cabinet (1). And / or, the top of the energy storage converter (2) is provided with a grid baffle (20) at the connection between the second flow cavity (5) and the third flow cavity (6), and the grid baffle (20) is provided with a plurality of openings along its length; the openings of the plurality of openings are different.

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