Direct-cooling heat dissipation structure of energy storage cabinet and energy storage cabinet

Abstract

The invention relates to the technical field of energy storage cabinet heat dissipation, in particular to an energy storage cabinet direct-cooling heat dissipation structure and an energy storage cabinet, the energy storage cabinet direct-cooling heat dissipation structure comprises two bin dividing plates used for dividing the interior of an energy storage cabinet body into an electrical bin, a battery bin and a liquid-cooling bin, a PCS air duct is fixedly installed on one side in the electrical bin, a direct-cooling heat dissipation assembly is fixedly installed in the battery bin, and the liquid-cooling bin is fixedly installed in the PCS air duct. The direct cooling heat dissipation assembly communicates with the liquid cooling cabin and the PCS air channel. According to the heat dissipation piece, the battery pack can be cooled at the bottom of the battery pack in a multi-point circulating cooling mode, heat dissipation of the bottom of the battery pack is consistent, the phenomenon of non-uniform heat distribution of the battery pack is avoided, and the phenomenon of fire or explosion caused by thermal runaway possibly caused by local overheating of the battery pack is avoided.

Description

Technical Field

[0001] This application relates to the technical field of energy storage cabinet heat dissipation, and particularly to a direct cooling heat dissipation structure for an energy storage cabinet and an energy storage cabinet. Background Art

[0002] The energy storage system can flexibly solve the imbalance between power generation and user demand, achieve "peak shaving and valley filling", and improve the utilization rate of electric energy. However, with the increase in the capacity of the battery cells and the improvement of the charge and discharge rate, the heat generation of the battery cells in the electrochemical energy storage system and its related safety issues have become increasingly prominent. At present, the conventional air cooling and liquid cooling heat dissipation technologies can no longer meet the heat dissipation requirements of the energy storage system under high capacity and high rate, which has restricted the further development of the energy storage industry.

[0003] For the Chinese patent with the publication number CN118630362A and the name "An Industrial and Commercial Energy Storage Cabinet", it adopts a horizontal direct cooling module with front air return and rear air outlet. The air return port, air outlet, and heat exchanger all extend left and right. The electric control box and the compressor are respectively located at the left and right ends of the air return port. The heat exchanger and the cooling fan are close to the air outlet, and the cooling fan is located between the heat exchanger and the air outlet, improving the air return capacity and ensuring the center of gravity stability of the whole machine.

[0004] The above prior art can also achieve the function of dissipating heat from the energy storage cabinet. However, when the above prior art is used, it only uses the air cooling method to dissipate the heat accumulated inside the energy storage cabinet, and the heat dissipation efficiency is poor, and the effect is not good under high temperature or high rate charge and discharge; at the same time, using the air cooling method to dissipate heat from the battery may cause uneven temperature distribution inside the battery pack, resulting in faster capacity attenuation of the battery packs at the high temperature end, causing a decrease in the overall capacity and affecting the battery performance and life. Summary of the Invention

[0005] In order to solve the problems existing in the background art, the present invention proposes a direct cooling heat dissipation structure for an energy storage cabinet.

[0006] The direct cooling heat dissipation structure for an energy storage cabinet provided by this application adopts the following technical solutions:

[0007] A direct cooling heat dissipation structure for an energy storage cabinet includes: two partition plates for dividing the interior of the energy storage cabinet body into an electrical compartment, a battery compartment, and a liquid cooling machine compartment. A PCS air duct is fixedly installed on one side inside the electrical compartment, and a direct cooling heat dissipation component is fixedly installed inside the battery compartment. The direct cooling heat dissipation component is respectively communicated with the liquid cooling machine compartment and the PCS air duct.

[0008] The direct-cooling heat dissipation component includes mounting brackets fixedly installed on the left and right sides of the battery compartment. The mounting brackets are arranged symmetrically in pairs on the side walls of the battery compartment. The inside of the mounting bracket is a hollow structure, and a direct-cooling flow channel is provided inside the mounting bracket. The direct-cooling flow channel is communicated with the inside of the liquid-cooling engine room. On the left and right side walls inside the battery compartment, battery brackets are evenly arranged from top to bottom. A direct-cooling component is detachably installed between two relatively arranged battery brackets, and the direct-cooling component is communicated with the inside of the direct-cooling flow channel. The area between two groups of direct-cooling components arranged up and down is the battery pack storage cavity. The direct-cooling component is used to transfer the heat generated by the battery pack to the inside of the liquid-cooling engine room.

[0009] A heat dissipation component is installed between the mounting brackets on the same side inside the energy storage cabinet body. The heat dissipation component uses the air-cooling method to transfer the heat inside the battery storage cavity to the inside of the PCS air duct.

[0010] Further, the cross-section of the battery bracket is in an L-shaped structure. The inside of the battery bracket is a hollow structure. A liquid inlet communicating with the direct-cooling flow channel is provided on the outer side surface of the battery bracket. An inward depression groove cooperating with the direct-cooling component is provided at the upper end of the battery bracket. A jack cooperating with the direct-cooling component is provided on the inward depression groove. A battery pack guiding frame is also provided on the inner side surface of the battery bracket.

[0011] Further, the direct-cooling component includes a support frame, a supporting member, a heat dissipation member, and a connecting frame. The support frame is in a rectangular structure. An outward extension protrusion cooperating with the inward depression groove is provided on the outer side of the support frame. A rectangular groove is provided at the upper end of the support frame. Supporting members are evenly and equidistantly arranged on the rectangular groove. The supporting members are fixedly installed on the support frame. A heat dissipation member is installed between adjacent supporting members. A flow cavity is arranged between the heat dissipation member and the inner side surfaces of the support frame and the supporting member. A connecting frame is fixedly installed between the ends of the heat dissipation member. The cross-section of the connecting frame is in an L-shaped structure. The inside of the connecting frame is a hollow structure. Insertion frames are evenly and fixedly installed at the lower end of the connecting frame. The insertion frames pass through the outward extension protrusion and are inserted and cooperated with the jacks on the inward depression groove.

[0012] Further, the cross-section of the supporting member is in a convex structure. The supporting member is made of heat-insulating material. Insertion grooves are respectively provided on the front and rear sides at the upper end of the supporting member. An annular sealing ring is provided on the inner side surface of the insertion groove. The heat dissipation member is inserted and cooperated with the insertion groove.

[0013] Further, the heat dissipation member includes a T-shaped frame, a first flow channel, a second flow channel, and an insertion plate. The T-shaped frame is detachably installed in the gap between adjacent supporting members. A first flow channel is provided at the lower end inside the T-shaped frame. A second flow channel is provided at the upper end inside the T-shaped frame. Insertion plates are respectively installed on the front and rear sides at the lower end of the T-shaped frame. The insertion plates are hermetically cooperated with the insertion grooves. Liquid outlet holes communicating with the second flow channel are evenly provided on the insertion plates. The coolant inside the second flow channel flows vertically downward through the liquid outlet holes into the flow cavity.

[0014] Furthermore, flow ports are evenly arranged between the flow channel 1 and the flow channel 2, and the coolant will flow upward into the flow channel 2 only after the flow channel 1 is fully filled, so that the temperature of the coolant entering the flow channel 2 remains consistent.

[0015] Furthermore, the lower end surface of the support frame is also provided with a storage groove, and a heat conductive member in contact with the surface of the battery pack is installed in the storage groove;

[0016] The heat conducting member comprises a telescopic rod, a horizontal plate and a heat conducting sheet. The telescopic rod is arranged around the inside of the storage slot, the horizontal plate is connected between the lower ends of the telescopic rod, and the heat conducting sheet is installed between the lower ends of the horizontal plates.

[0017] Furthermore, the heat dissipation assembly includes a heat dissipation frame, a heat dissipation duct and an explosion-proof component. The heat dissipation frame is arranged between the mounting frames on the same side inside the energy storage cabinet. A plurality of heat dissipation holes are evenly arranged on the inner side surface of the heat dissipation frame. Each group of heat dissipation holes is connected to a battery pack storage cavity. An explosion-proof component is installed in the middle of the heat dissipation frame, and the explosion-proof component can reciprocate along the length direction of the heat dissipation duct.

[0018] Furthermore, the explosion-proof component includes a fixed component and a telescopic component. The fixed component is slidably arranged on the inner wall of the heat dissipation frame. A telescopic component is installed outside the fixed component. The telescopic component is used to seal the heat dissipation holes on the inner side of the heat dissipation frame.

[0019] In addition, the present application also provides an energy storage cabinet, including the direct cooling heat dissipation structure and the energy storage cabinet body described in the above embodiment.

[0020] Beneficial Effects

[0021] Compared with the prior art, the present invention provides a direct cooling and heat dissipation structure of an energy storage cabinet and an energy storage cabinet, which have the following beneficial effects:

[0022] 1. In this invention, the direct cooling heat dissipation component directly contacts the battery pack through the coolant to achieve efficient heat exchange. This method can quickly take away the heat, reduce the temperature of the battery pack, and thus improve the cooling efficiency.

[0023] 2. In this invention, the direct cooling component includes a support member and a heat sink arranged at intervals, so that when the coolant flows inside the heat sink, the heat sink can cool the battery pack by a multi-point circulation cooling method at the bottom of the battery pack. The heat dissipation at the bottom of the battery pack is uniform, and the battery pack will not have uneven heat distribution, thus avoiding the phenomenon of local overheating of the battery pack that may cause thermal runaway and lead to fire or explosion.

[0024] 3. In this invention, the heat dissipation component includes Flow Channel 1 and Flow Channel 2. The coolant first enters into Flow Channel 1. When Flow Channel 1 is filled with the coolant, the coolant will enter into Flow Channel 2 from bottom to top. The coolant entering into Flow Channel 2 will exchange heat with the heat generated by the battery pack. After that, the coolant will quickly drain downward through the liquid outlet holes on the plug-in board, making the temperature consistent when the coolant contacts the battery pack. Furthermore, it can avoid the phenomenon that the temperature difference at both ends of the battery pack is too large due to inconsistent heat dissipation at both ends of the battery pack, improve the service life of the battery pack, and avoid the attenuation of the battery capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the drawings and embodiments.

[0026] Figure 1 It is a three-dimensional structure schematic diagram of the present application.

[0027] Figure 2 It is a cross-sectional structure schematic diagram of the present application.

[0028] Figure 3 It is a three-dimensional structure schematic diagram between the battery bracket and the direct cooling component of the present application.

[0029] Figure 4 It is a three-dimensional structure schematic diagram of the battery bracket of the present application.

[0030] Figure 5 It is a three-dimensional structure schematic diagram of the direct cooling component of the present application.

[0031] Figure 6 It is a cross-sectional structure schematic diagram of the direct cooling component of the present application.

[0032] Figure 7 It is a cross-sectional structure schematic diagram of the supporting part of the present application.

[0033] Figure 8 It is a three-dimensional cross-sectional structure schematic diagram between the heat dissipation component and the connecting frame of the present application.

[0034] Figure 9 It is a three-dimensional structure schematic diagram of the heat dissipation component of the present application.

[0035] Figure 10 It is a cross-sectional structure schematic diagram of the heat dissipation component of the present application.

[0036] Figure 11 It is a three-dimensional structure schematic diagram among the battery bracket, the direct cooling component and the heat conducting component of the present application.

[0037] Description of reference numerals: 1. Energy storage cabinet body; 101. Electrical compartment; 102. Battery compartment; 103. Liquid cooling engine room; 104. PCS air duct; 11. Compartment board; 12. Ground fixing bracket; 13. Forklift hole; 14. Hoisting ring; 15. Pipeline sealing plate for battery compartment; 2. Cold heat dissipation component; 21. Mounting rack; 22. Battery bracket; 221. Liquid inlet; 222. Recessed groove; 223. Jack; 224. Battery pack guiding frame; 23. Direct cooling component; 231. Support frame; 232. Support member; 2321. Insertion slot; 233. Heat dissipation member; 2331. T-shaped frame; 2332. Flow channel 1; 2333. Flow channel 2; 2334. Insertion board; 234. Connecting frame; 2341. Insertion frame; 235. Heat conducting member; 2351. Telescopic rod; 2352. Cross plate; 2353. Heat conducting sheet; 24. Heat dissipation component; 241. Heat dissipation frame; 242. Heat dissipation air duct; 243. Explosion-proof member; 2431. Fixing member; 2432. Telescopic member. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer to Figures 1-11 , a direct cooling heat dissipation structure for an energy storage cabinet provided in an embodiment of the present invention includes: two compartment boards 11 for dividing the interior of the energy storage cabinet body 1 into an electrical compartment 101, a battery compartment 102, and a liquid cooling engine room 103. A PCS air duct 104 is fixedly installed on one side inside the electrical compartment 101, and a direct cooling heat dissipation component 2 is fixedly installed inside the battery compartment 102. The direct cooling heat dissipation component 2 is respectively communicated with the liquid cooling engine room 103 and the PCS air duct 104.

[0040] In the above technical solution, the direct cooling heat dissipation component 2 cools and dissipates the batteries inside the battery compartment 102 by combining air cooling and water cooling, avoiding heat accumulation, enabling the battery pack to adapt to high temperature or high-rate charge and discharge, preventing the phenomenon of heat accumulation inside the battery compartment 102, and preventing the possible phenomenon of battery thermal runaway, thereby improving the safe service life of the battery.

[0041] Refer to Figure 1As shown in the figure, the direct cooling heat dissipation component 2 includes mounting brackets 21 fixedly installed on the left and right sides of the battery compartment 102. The mounting brackets 21 are arranged symmetrically in pairs on the side wall of the battery compartment 102. The inside of the mounting bracket 21 is a hollow structure, and a direct cooling flow channel is provided inside the mounting bracket 21. The direct cooling flow channel is communicated with the inside of the liquid cooling machine compartment 103. On the left and right side walls of the battery compartment 102, battery brackets 22 are evenly arranged from top to bottom. A direct cooling component 23 is detachably installed between two relatively arranged battery brackets 22, and the direct cooling component 23 is communicated with the inside of the direct cooling flow channel. The area between two groups of vertically arranged direct cooling components 23 is a battery pack storage cavity. The direct cooling component 23 is used to transfer the heat generated by the battery pack to the inside of the liquid cooling machine compartment 103.

[0042] In the above technical solution, the liquid cooling machine compartment 103 includes an outlet end and an inlet end. The coolant inside the liquid cooling machine compartment 103 flows into the battery bracket 22 on one side inside the energy storage cabinet body 1 through the outlet end, and then enters the battery bracket 22 on the other side inside the energy storage cabinet body 1 after being transferred by the direct cooling component 23. The coolant then flows back into the liquid cooling machine compartment 103 through the inlet end, so as to achieve the purpose of cooling the battery packs on the two battery brackets 22. By adopting the heat dissipation method of direct cooling circulation of the coolant, the battery packs can be effectively cooled, and heat accumulation inside the battery packs can be prevented.

[0043] Refer to Figures 1-2 As shown in the figure, a heat dissipation component 24 is installed between the mounting brackets 21 on the same side inside the energy storage cabinet body 1. The heat dissipation component 24 transfers the heat inside the battery storage cavity to the inside of the PCS air duct 104 by means of air cooling.

[0044] In the above technical solution, air is used as the cooling medium, and the air generated by the batteries inside the battery compartment 102 is blown away by a fan, and the heat is taken away by using the principle of convective heat transfer, so as to achieve the purpose of cooling the battery packs.

[0045] Refer to Figures 3-4 As shown in the figure, as a preferred technical solution of this embodiment, the cross section of the battery bracket 22 is an L-shaped structure. The inside of the battery bracket 22 is a hollow structure. An inlet port 221 communicated with the direct cooling flow channel is provided on the outer side surface of the battery bracket 22. An inward recess 222 cooperating with the direct cooling component 23 is provided at the upper end of the battery bracket 22, and a jack 223 cooperating with the direct cooling component 23 is provided on the inward recess 222. A battery pack guide frame 224 is also provided on the inner side surface of the battery bracket 22.

[0046] In the above technical solution, a direct cooling component 23 is installed between two battery brackets 22. The battery brackets 22 are used to support and fix the direct cooling component 23. At the same time, the insertion fit between the jack 223 and the direct cooling component 23 enables the inside of the battery bracket 22 to communicate with the inside of the direct cooling component 23. The coolant flows into the inside of the direct cooling component 23 from one battery bracket 22 and then flows out from the other battery bracket 22, so that the direct cooling component 23 can adopt the method of circulating direct cooling to cool the heat inside the battery pack, avoiding the phenomenon of heat accumulation of the heat generated by the battery pack.

[0047] Refer to Figures 5-6 As shown, as a preferred technical solution of this embodiment, the direct cooling component 23 includes a support frame 231, a supporting member 232, a heat dissipating member 233 and a connecting frame 234. The support frame 231 has a rectangular structure. An extension protrusion matching with the recessed groove 222 is arranged on the outside of the support frame 231. A rectangular groove is arranged at the upper end of the support frame 231. The supporting members 232 are evenly and equidistantly arranged on the rectangular groove. The supporting members 232 are fixedly installed on the support frame 231. A heat dissipating member 233 is installed between adjacent supporting members 232. A flow cavity is arranged between the heat dissipating member 233 and the inner side surfaces of the support frame 231 and the supporting member 232. A connecting frame 234 is fixedly installed between the ends of the heat dissipating member 233. The cross section of the connecting frame 234 is in an L-shaped structure. The inside of the connecting frame 234 is a hollow structure. Insertion frames 2341 are evenly and fixedly installed at the lower end of the connecting frame 234. The insertion frames 2341 pass through the extension protrusion and are inserted and matched with the jacks 223 on the recessed groove 222.

[0048] In the above technical solution, the support frame 231, the supporting member 232, the heat dissipating member 233 and the connecting frame 234 cooperate with each other to form a complete plane. The coolant enters the inside of the connecting frame 234 through the insertion frame 2341 on one side of the support frame 231, and then is evenly dispersed into the inside of the heat dissipating member 233 through the connecting frame 234, so that the heat dissipating member 233 can effectively transfer and dissipate the heat generated by the battery pack. After that, the coolant that has undergone heat exchange with the battery pack will immediately enter the inside of the flow cavity, and the coolant inside the flow cavity will flow back into the liquid cooling machine cabin 103 through the insertion frame 2341 on the other side of the support frame 231.

[0049] Refer to Figure 7 As shown, as a preferred technical solution of this embodiment, the cross section of the supporting member 232 is in a convex structure. The supporting member 232 is made of heat-insulating material. Insertion slots 2321 are respectively arranged on the front and rear sides of the upper end of the supporting member 232. An annular sealing ring is arranged on the inner side surface of the insertion slot 2321. The heat dissipating member 233 is inserted and matched with the insertion slot 2321.

[0050] In the above technical solution, the supporting member 232 is used to support and fix the heat dissipation member 233 and is hermetically connected to the heat dissipation member 233. At the same time, the supporting member 232 is made of heat-insulating material, so that the heat generated by the battery pack will not be transferred through the supporting member 232. The heat generated by the battery pack is only cooled by the heat dissipation member 233, ensuring the consistency of the battery pack heat dissipation, avoiding the phenomenon of excessive temperature difference at both ends caused by inconsistent heat dissipation of the battery pack for a long time, and preventing the influence on the battery performance and life.

[0051] Refer to Figures 8-10 As shown, as a preferred technical solution of this embodiment, in order to avoid inconsistent heat dissipation on both sides at the lower end of the battery pack, a heat dissipation member 233 is provided in this embodiment. The heat dissipation member 233 includes a T-shaped frame 2331, a first flow channel 2332, a second flow channel 2333, and a plug-in board 2334. The T-shaped frame 2331 is detachably installed in the gap between adjacent supporting members 232. A first flow channel 2332 is provided at the lower end inside the T-shaped frame 2331, and a second flow channel 2333 is provided at the upper end inside the T-shaped frame 2331. The first flow channel 2332 communicates with the second flow channel 2333. Plug-in boards 2334 are respectively installed on the front and rear sides at the lower end of the T-shaped frame 2331. The plug-in boards 2334 are hermetically fitted with the plug-in slots 2321. Liquid outlet holes communicating with the second flow channel 2333 are uniformly provided on the plug-in boards 2334. The coolant inside the second flow channel 2333 flows vertically downward through the liquid outlet holes into the flow cavity.

[0052] Refer to Figure 10 As shown, as a preferred technical solution of this embodiment, communication ports are uniformly provided between the first flow channel 2332 and the second flow channel 2333. The coolant will flow upward into the second flow channel 2333 only after the first flow channel 2332 is filled with the coolant, so that the temperature of the coolant entering the second flow channel 2333 remains consistent.

[0053] In the above technical solution, when the coolant circulates, the coolant first enters the first flow channel 2332. When the first flow channel 2332 is filled with the coolant, the coolant will enter the second flow channel 2333 from bottom to top. The coolant entering the second flow channel 2333 will exchange heat with the heat generated by the battery pack. After that, the coolant will quickly be discharged downward through the liquid outlet holes on the plug-in board 2334, so that the temperature of the coolant when it contacts the battery pack is consistent, thereby avoiding the phenomenon of excessive temperature difference at both ends of the battery pack caused by inconsistent heat dissipation at both ends of the battery pack, improving the service life of the battery pack, and avoiding battery capacity attenuation.

[0054] Meanwhile, since there are multiple heat dissipation components 233 arranged evenly, the coolant cools the battery pack in a multi-point cyclic cooling manner at the bottom of the battery pack, ensuring uniform heat dissipation at the bottom of the battery pack. There will be no uneven heat distribution in the battery pack, avoiding the phenomenon of local overheating in the battery pack that may trigger thermal runaway and lead to fire or explosion.

[0055] Refer to Figure 11 As shown, as a preferred technical solution of this embodiment, a storage groove is further provided on the lower end surface of the support frame 231. A heat conduction component 235 in contact with the surface of the battery pack is installed in the storage groove. The heat conduction component 235 includes a telescopic rod 2351, a cross plate 2352, and a heat conduction sheet 2353. Telescopic rods 2351 are arranged around the inside of the storage groove. A cross plate 2352 is connected between the lower ends of the telescopic rods 2351. A heat conduction sheet 2353 is installed between the lower ends of the cross plate 2352.

[0056] In the above technical solution, after the battery pack is installed, the telescopic rod 2351 moves downward. The telescopic rod 2351 drives the heat conduction sheet 2353 to contact the upper end surface of the battery pack, enabling the heat generated at the upper end of the battery pack to be transferred to the heat conduction sheet 2353. The heat conduction sheet 2353 cooperates with the heat dissipation assembly 24, allowing the heat to be effectively dissipated, thereby further improving the heat dissipation effect of the battery pack and ensuring the service life of the battery pack.

[0057] Refer to Figures 1-2 As shown, as a preferred technical solution of this embodiment, the heat dissipation assembly 24 includes a heat dissipation frame 241, a heat dissipation air duct 242, and an explosion-proof component 243. A heat dissipation frame 241 is provided between the mounting frames 21 on the same side inside the energy storage cabinet 1. Multiple groups of heat dissipation holes are evenly arranged on the inner side surface of the heat dissipation frame 241. Each group of heat dissipation holes communicates with a battery pack storage cavity. An explosion-proof component 243 is installed in the middle of the heat dissipation frame 241. The explosion-proof component 243 can reciprocate along the length direction of the heat dissipation air duct 242.

[0058] In the above technical solution, the heat dissipation air duct 242 is connected to the PCS air duct 104. The heat dissipation air duct 242 on one side of the energy storage cabinet 1 is a high-pressure chamber, and the heat dissipation air duct 242 on the other side of the energy storage cabinet 1 is a negative-pressure chamber. Then, the cold air inside the PCS air duct 104 is sprayed into the battery compartment 102 through the high-pressure chamber. After the cold air contacts the heat generated by the battery pack, it is discharged outward through the negative-pressure chamber, thereby effectively transferring the heat generated by the battery pack and avoiding heat accumulation. When the battery pack is in an abnormal state, the explosion-proof component 243 immediately moves to the position corresponding to the battery pack storage cavity, thus sealing the battery pack storage cavity to prevent fire from affecting other battery packs.

[0059] Refer to Figure 2As shown, as a preferred technical solution of this embodiment, the explosion-proof member 243 includes a fixing member 2431 and a telescopic member 2432. The fixing member 2431 is slidably disposed on the inner wall of the heat dissipation frame 241, and the telescopic member 2432 is installed outside the fixing member 2431. The telescopic member 2432 is used to seal the heat dissipation holes on the inner side surface of the heat dissipation frame 241.

[0060] In the above technical solution, sensors are provided inside each battery pack storage cavity. When the temperature of the battery pack is abnormally high or catches fire and gets out of control, the telescopic member 2432 quickly responds and drives the fixing member 2431 to seal the battery pack storage cavity, so that the battery pack storage cavity is in a sealed state. The fixing member 2431 is made of explosion-proof material to prevent the battery pack inside the battery pack storage cavity from affecting the entire energy storage cabinet 1.

[0061] In addition, the present application also provides an energy storage cabinet, which includes the direct cooling heat dissipation structure and the energy storage cabinet 1 described in the above embodiment, and further includes:

[0062] A ground fixing bracket 12, which is installed on the front and rear sides of the lower end of the energy storage cabinet 1. The ground fixing bracket 12 is the installation and fixing structure of the energy storage cabinet 1.

[0063] A forklift hole 13 and a lifting ring 14. The forklift hole 13 is provided. The forklift hole 13 and the lifting ring 14 are the transfer structure and the lifting structure of the energy storage cabinet 1.

[0064] A battery compartment pipeline sealing plate 15, which is installed outside the mounting frame 21. The battery compartment pipeline sealing plate 15 isolates the pipeline from the equipment installation compartment to form an independent space for fixing the pipeline.

[0065] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A direct cooling and heat dissipation structure of an energy storage cabinet, characterized in that: include: Two compartment plates (11) for dividing the interior of an energy storage cabinet (1) into an electrical compartment (101), a battery compartment (102) and a liquid cooling compartment (103); a PCS air duct (104) is fixedly installed on one side of the interior of the electrical compartment (101); a direct cooling heat dissipation component (2) is fixedly installed inside the battery compartment (102); the direct cooling heat dissipation component (2) is respectively connected to the liquid cooling compartment (103) and the PCS air duct (104); The direct cooling heat dissipation component (2) comprises a mounting frame (21) fixedly mounted on the left and right sides of the battery compartment (102), the mounting frames (21) are symmetrically arranged on the side walls of the battery compartment (102), the interior of the mounting frame (21) is a hollow structure, a direct cooling flow channel is arranged inside the mounting frame (21), and the direct cooling flow channel is connected to the interior of the liquid cooling cabin (103), battery holders (22) are evenly arranged from top to bottom on the left and right side walls inside the battery compartment (102), a direct cooling component (23) is detachably mounted between the two battery holders (22) arranged opposite to each other, and the direct cooling component (23) is connected to the interior of the direct cooling flow channel, and the area between the two groups of direct cooling components (23) arranged up and down is a battery pack storage cavity, and the direct cooling component (23) is used to transfer the heat generated by the battery pack to the interior of the liquid cooling cabin (103); A heat dissipation component (24) is installed between the mounting frames (21) located on the same side inside the energy storage cabinet (1), and the heat dissipation component (24) transfers the heat inside the battery storage cavity to the inside of the PCS air duct (104) by means of air cooling.

2. The direct cooling and heat dissipation structure of an energy storage cabinet according to claim 1 is characterized in that: The battery holder (22) has an L-shaped cross-section. The interior of the battery holder (22) is a hollow structure. A liquid inlet (221) connected to the direct cooling channel is provided on the outer surface of the battery holder (22). An inner recessed groove (222) cooperating with the direct cooling component (23) is provided on the upper end of the battery holder (22). A socket (223) cooperating with the direct cooling component (23) is provided on the inner recessed groove (222). A battery pack guide frame (224) is also provided on the inner side surface of the battery holder (22).

3. The direct cooling and heat dissipation structure of an energy storage cabinet according to claim 2 is characterized in that: The direct cooling component (23) comprises a support frame (231), a supporting member (232), a heat sink (233) and a connecting frame (234); the support frame (231) is of a rectangular structure; an outer side of the support frame (231) is provided with an extension protrusion that matches the inner recessed groove (222); a rectangular groove is provided at the upper end of the support frame (231); supporting members (232) are evenly and equidistantly arranged on the rectangular groove; the supporting members (232) are fixedly mounted on the support frame (231); adjacent supporting members (232) are spaced apart from each other. A heat sink (233) is installed, and a flow cavity is arranged between the heat sink (233) and the inner side surfaces of the support frame (231) and the supporting member (232). A connecting frame (234) is fixedly installed between the ends of the heat sink (233). The cross section of the connecting frame (234) is an L-shaped structure, and the interior of the connecting frame (234) is a hollow structure. A plug-in frame (2341) is evenly fixedly installed at the lower end of the connecting frame (234), and the plug-in frame (2341) passes through the extended protrusion and is plugged into the plug hole (223) on the sunken groove (222).

4. The direct cooling and heat dissipation structure of an energy storage cabinet according to claim 3 is characterized in that: The supporting member (232) has a convex cross-section. The supporting member (232) is made of a heat-insulating material. Insertion grooves (2321) are respectively arranged on the front and rear sides of the upper end of the supporting member (232). An annular sealing ring is arranged on the inner side of the insertion groove (2321). The heat dissipation member (233) is inserted into and matched with the insertion groove (2321).

5. The direct cooling and heat dissipation structure of an energy storage cabinet according to claim 4 is characterized in that: The heat sink (233) comprises a T-shaped frame (2331), a flow channel 1 (2332), a flow channel 2 (2333) and a plug-in board (2334); the T-shaped frame (2331) is detachably mounted in a gap between adjacent supporting members (232); the flow channel 1 (2332) is disposed at the lower end of the T-shaped frame (2331); the flow channel 2 (2333) is disposed at the upper end of the T-shaped frame (2331); plug-in boards (2334) are respectively mounted on the front and rear sides of the lower end of the T-shaped frame (2331); the plug-in boards (2334) are sealed with the plug-in slot (2321); liquid outlet holes connected to the flow channel 2 (2333) are evenly arranged on the plug-in board (2334); the cooling liquid in the flow channel 2 (2333) flows vertically downward into the flow cavity through the liquid outlet holes.

6. The direct cooling and heat dissipation structure of an energy storage cabinet according to claim 5, characterized in that: Flow ports are evenly arranged between flow channel one (2332) and flow channel two (2333). The coolant will flow upward into flow channel two (2333) only after flow channel one (2332) is fully filled, so that the temperature of the coolant entering flow channel two (2333) remains consistent.

7. The direct cooling and heat dissipation structure of an energy storage cabinet according to claim 6, characterized in that: The lower end surface of the support frame (231) is also provided with a receiving groove, in which a heat conducting member (235) in contact with the surface of the battery pack is installed; The heat conducting member (235) comprises a telescopic rod (2351), a transverse plate (2352) and a heat conducting sheet (2353); the telescopic rod (2351) is arranged around the interior of the storage slot; the transverse plate (2352) is connected between the lower ends of the telescopic rod (2351); and the heat conducting sheet (2353) is installed between the lower ends of the transverse plate (2352).

8. The direct cooling and heat dissipation structure of an energy storage cabinet according to claim 7, characterized in that: The heat dissipation assembly (24) comprises a heat dissipation frame (241), a heat dissipation duct (242) and an explosion-proof component (243). The heat dissipation frame (241) is arranged between the mounting frames (21) on the same side inside the energy storage cabinet (1). A plurality of groups of heat dissipation holes are evenly arranged on the inner side surface of the heat dissipation frame (241), and each group of heat dissipation holes is connected to a battery pack storage cavity. The explosion-proof component (243) is installed in the middle of the heat dissipation frame (241), and the explosion-proof component (243) can reciprocate along the length direction of the heat dissipation duct (242).

9. The direct cooling and heat dissipation structure of an energy storage cabinet according to claim 8, characterized in that: The explosion-proof component (243) comprises a fixing component (2431) and a telescopic component (2432); the fixing component (2431) is slidably arranged on the inner wall of the heat dissipation frame (241); a telescopic component (2432) is installed outside the fixing component (2431); the telescopic component (2432) is used to seal the heat dissipation holes on the inner side surface of the heat dissipation frame (241).

10. An energy storage cabinet, characterized in that: The energy storage cabinet comprises the energy storage cabinet direct cooling and heat dissipation structure as claimed in any one of claims 1 to 9 and an energy storage cabinet body (1).

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