A highly adaptable two-way stratified convection energy storage battery bin

Abstract

The present invention relates to a highly adaptable two-way stratified convection energy storage battery compartment, which comprises a compartment body, a heat conduction partition, an air-conditioning refrigeration unit and an air inlet and outlet unit, wherein: the heat conduction partition is used for dividing the internal space of the compartment body into two battery compartments arranged side by side, and the battery compartments are used for accommodating storage batteries; the air-conditioning refrigeration unit consists of air conditioners respectively arranged in the two battery compartments, and the two air conditioners are arranged in a diverging manner facing each other for blowing cold air into the corresponding battery compartments for refrigeration; the air inlet and outlet unit consists of a dust and sand-proof air-conditioning air inlet device and a dust and rain-proof air-conditioning air outlet device arranged in each battery compartment, and the dust and sand-proof air-conditioning air inlet device is arranged in cooperation with the air conditioner. Compared with the prior art, by applying the two-way stratified fluid heat dissipation system to the energy storage container battery compartment, the present invention can effectively improve the heat dissipation uniformity of the energy storage battery compartment, and by adopting an adaptable design for the energy storage battery compartment, the sand-proof, dust-proof, rain-proof and shock-proof capabilities of the system can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of container energy storage battery compartments and system thermal management and adaptability, and particularly to a highly adaptable two-way stratified convection energy storage battery compartment. Background Art

[0002] With the booming development of the new energy industry, the demand for energy storage technology is increasing day by day, and requirements such as being movable, highly adaptable, and having a stable lifespan are put forward. The containerized energy storage system emerges as the times require. It mainly installs a complete set of energy storage systems in containers for easy transportation and construction, and can be conveniently applied to the power grid power generation system.

[0003] However, the heat dissipation system of the battery compartment in the traditional container energy storage system is single, and the heat dissipation uniformity is poor. In an environment with high temperature or large temperature difference, the operating efficiency of the battery pack and other equipment is low, the lifespan is shortened, and at the same time, the excessive temperature difference may cause some failures, resulting in unnecessary economic losses.

[0004] At the same time, since the container energy storage system is often used in harsh environments, it is particularly important to carry out appropriate adaptability design to enhance its dust, sand, rain, and shock resistance capabilities. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above-mentioned defects existing in the prior art and provide a highly adaptable two-way stratified convection energy storage battery compartment. By applying the two-way stratified fluid heat dissipation system to the energy storage container battery compartment, the heat dissipation uniformity of the energy storage battery compartment can be effectively improved. Through the adaptability design of the energy storage battery compartment, the sand, dust, rain, and shock resistance capabilities of the system can be effectively improved.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A highly adaptable two-way stratified convection energy storage battery compartment, comprising:

[0008] A compartment body,

[0009] A heat conduction partition for separating the internal space of the compartment body into two side-by-side battery compartments for accommodating storage batteries,

[0010] An air conditioning refrigeration unit composed of air conditioners respectively arranged in the two battery compartments, and the two air conditioners are arranged in a diverging manner facing each other for blowing cold air into the corresponding battery compartments for refrigeration,

[0011] An air inlet and outlet unit composed of a dust and sand-proof air conditioner air inlet device and a dust and rain-proof air conditioner air outlet device arranged in each battery compartment, and the dust and sand-proof air conditioner air inlet device is arranged in cooperation with the air conditioner.

[0012] Preferably, the storage body is a container. A buffer bin is provided at one end of the container, and a heat-conducting partition is arranged between the other end of the container and the buffer bin. The buffer bin is provided with a bin door for leading to the outside of the container and an internal bin door for leading to each battery bin.

[0013] Preferably, the heat-conducting partition is made of a metal or non-metal heat-conducting material and is in a flat plate shape or a corrugated plate shape. When the heat-conducting partition is in a corrugated plate shape, on the one hand, it can increase the heat exchange area, and on the other hand, it can promote the air flow disturbance near the heat-conducting partition and enhance the heat exchange effect.

[0014] Preferably, the storage batteries in each battery bin are arranged near the outer side of the battery bin (so that there is a distance between the storage batteries and the heat-conducting partition); the two air conditioners of the air-conditioning refrigeration unit are respectively arranged at different ends on the outer sides of the two battery bins; the dust-proof and rain-proof air outlet device of each battery bin is arranged at one end of the outer side of the battery bin away from the air conditioner.

[0015] Preferably, the dust-proof and sand-proof air inlet device of the air conditioner includes an air inlet, a dust-proof filter screen arranged outside the air inlet, and a multi-stage filter screen arranged inside the air inlet in sequence. Dust collection chambers are provided on both sides of the multi-stage filter screen. The air permeability of the multi-stage filter screen decreases sequentially from the outside to the inside. There are distances between the first-stage filter screen and the air inlet and between each stage of filter screens, respectively forming air ducts. The ends of the air ducts are provided with air pipes for connecting to the dust collection chambers.

[0016] Preferably, the dust-proof and sand-proof air inlet device of the air conditioner includes an air inlet, a dust-proof filter screen arranged outside the air inlet, and a first-stage filter screen and a second-stage filter screen arranged inside the air inlet in sequence. Dust collection chambers are provided on both sides of the first-stage filter screen and the second-stage filter screen. The air permeability of the second-stage filter screen is less than that of the first-stage filter screen. There are distances between the first-stage filter screen and the air inlet and between the first-stage filter screen and the second-stage filter screen, respectively forming a first-stage air duct and a second-stage air duct. The ends of the first-stage air duct and the second-stage air duct are both provided with air pipes for connecting to the dust collection chambers.

[0017] Preferably, the dust-proof and rain-proof air outlet device of the air conditioner is a louvered air outlet.

[0018] Preferably, the storage batteries are arranged in the battery bin through battery brackets.

[0019] Preferably, the battery bracket includes a bracket body and a fixing frame arranged on the bracket body for fixing the storage battery; the bracket body includes a multi-layer beam structure and a plurality of columns surrounding the multi-layer beam structure and used for supporting the multi-layer beam structure. The beam structure includes two parallel cross beams and side beams arranged at both ends of the two cross beams. One end of the side beam extends forward to form an operation position (which is convenient for personnel to stand and operate on the storage battery).

[0020] Preferably, the fixing frame includes a tray for supporting the battery and a wide pressure strip for pressing on the top of the battery. A plurality of fixing lugs are provided on the outside of the tray, and fixing holes are provided on the fixing lugs. Through holes matching the fixing holes are provided on the two cross beams of the beam structure. The wide pressure strip is passed through the tray for fixing the battery.

[0021] The present invention adopts a two-way stratified convection heat dissipation system. The air outlet directions of the air conditioners on both sides are opposite, and the cold air is sent into the separated spaces on both sides of the heat-conducting partition. The air flow is separated by the heat-conducting partition, and then heat transfer is carried out on both sides by the heat-conducting partition to evenly the fluid temperature on both sides. The present invention can effectively improve the temperature uniformity of the battery in the main body target, efficiently balance the temperature of the batteries in the energy storage battery compartment, improve the service life of the batteries, and avoid the occurrence of system energy storage and discharge failures caused by the difference in the degree of battery aging due to the uneven temperature of the batteries. Further, the dust-proof and sand-proof design of the air inlet of the air conditioner and the louver design of the air outlet adopted by the present invention, and also include the design of the battery bracket, which can effectively improve the environmental adaptability of the energy storage battery compartment.

[0022] The heat-conducting partition divides the space in the compartment into two battery compartments. An air conditioner for refrigeration is arranged opposite to each other in the two battery compartments. The batteries (preferably installed on the battery brackets) are respectively arranged on both sides of the heat-conducting partition. When the system needs refrigeration, the cold air passes through the dust-proof and sand-proof air inlet devices on both sides, and the large-volume dust is filtered out by the first-layer dust-proof filter screen and enters the primary air duct. The air in the primary air duct is filtered again by the primary filter screen, and the dust is brought into the dust collection chamber through the air duct by the gas flow. The gas enters the secondary air duct and is filtered by the secondary filter screen, and the dust is sent into the dust collection chamber as above, and so on. Subsequently, the cold air is sent into the battery compartments by the air conditioners on both sides to dissipate heat from the batteries. The gas flow directions are opposite due to the left and right of the heat-conducting partition. At the same time, due to the high heat conductivity of the heat-conducting partition and the inconsistency of the gas temperatures on both sides at the same position of the partition, a heat exchange reaction occurs to ensure the temperature consistency in the battery compartment. The air is then discharged from the air outlet. The present invention further designs the battery bracket to stably clamp the battery in the bracket to prevent the collision and dropping accidents of the battery caused by vibration.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The heat-conducting partition divides the energy storage battery compartment into two layers, and the air conditioners are arranged opposite to each other. Due to the relevant arrangement, the cold air blown out by the air conditioners causes a situation where the gas flows separately on both sides of the heat-conducting partition but the temperatures are inconsistent, thus generating a heat exchange situation, which can ensure the temperature consistency of the fluid at different distances from the air conditioner, thereby evenly dissipating heat from the batteries and ensuring the heat dissipation uniformity of the battery compartment.

[0025] (2) The air inlet of the air conditioner is designed with a three - layer filtration structure - a dust - and - sand - proof air - inlet device for the air conditioner. The air is filtered by the dust - proof filter to remove large - particle dust and sand, and then passes through multiple - stage filters. At the same time, due to the inconsistent air permeability of the filters, air ducts are formed, and the dust is sent into the dust - collection chamber through the air duct, improving the dust - free degree of the cold air in the system, extending the service life of the air - conditioner system, and also avoiding the influence of dust and other substances entering the battery compartment on the use of the storage battery.

[0026] (3) The battery support is designed as a protruding embedded type to prevent the left - right, front - back movement of the storage battery. A wide pressure strip is designed (the width of the wide pressure strip can be slightly wider, for example, 3 - 10 cm) to limit the up - down movement of the storage battery and reduce the local stress on the pressure strip. This design can effectively prevent physical damage to the storage battery.

[0027] (4) A hatch door is provided on the surface of the compartment body, and internal hatch doors are respectively arranged for the two compartments of the internal battery pack part, which is convenient for personnel to carry out maintenance and cleaning operations. The dust - and - rain - proof air - outlet device of the air conditioner is set in the form of a shutter, reducing the possibility of rainwater entering the compartment body and effectively extending the service life of the compartment body. Description of the Drawings

[0028] Figure 1 It is a schematic structural view of the high - adaptability bidirectional stratified convection energy - storage battery compartment of the present invention.

[0029] Figure 2 It is a schematic top - view structural view of the high - adaptability bidirectional stratified convection energy - storage battery compartment of the present invention.

[0030] Figure 3 It is a schematic front - view structural view of the high - adaptability bidirectional stratified convection energy - storage battery compartment of the present invention.

[0031] Figure 4 It is a schematic view of the fixing rack of the present invention.

[0032] Figure 5 It is a schematic structural view of the bracket body of the present invention.

[0033] Figure 6 It is a schematic structural view of the dust - and - rain - proof air - outlet device of the air conditioner of the present invention.

[0034] In the figure, 1 is the compartment body, 11 is the battery compartment, 12 is the buffer compartment, 13 is the hatch door, 14 is the internal hatch door, 2 is the heat - conducting partition, 3 is the air conditioner, 41 is the dust - and - sand - proof air - inlet device for the air conditioner, 411 is the air inlet, 412 is the dust - proof filter, 413 is the primary filter, 414 is the secondary filter, 415 is the primary air duct, 416 is the secondary air duct, 417 is the air duct, 418 is the dust - collection chamber, 5 is the storage battery, 61 is the beam structure, 611 is the cross - beam, 612 is the side beam, 62 is the column, 71 is the tray rack, 72 is the wide pressure strip, 73 is the fixed ear - piece, 74 is the fixing hole. Detailed Embodiments

[0035] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] Embodiment 1

[0037] A high - adaptability bidirectional stratified convection energy - storage battery bin, as Figures 1 to 6 shown, includes a bin body 1, a heat - conducting partition 2, an air - conditioning refrigeration unit, and an air inlet - outlet unit. Among them: The heat - conducting partition 2 is used to divide the internal space of the bin body 1 into two side - by - side battery bins 11, and the battery bins 11 are used to accommodate storage batteries 5; The air - conditioning refrigeration unit consists of air conditioners 3 respectively arranged in the two battery bins 11. The two air conditioners 3 are arranged in a diverging manner facing each other, and are used to blow cold air into the corresponding battery bins 11 for refrigeration; The air inlet - outlet unit consists of a dust - proof and sand - proof air - conditioning air inlet device 41 and a dust - proof and rain - proof air - conditioning air outlet device 42 arranged in each battery bin 11. The dust - proof and sand - proof air - conditioning air inlet device 41 is arranged in cooperation with the air conditioner 3.

[0038] More specifically, in this embodiment, as Figures 1 to 3 shown, the bin body 1 is preferably a container. One end of the container is provided with a buffer bin 12, and the heat - conducting partition 2 (along the length direction of the container) is arranged between the other end of the container and the buffer bin 12; The buffer bin 12 is provided with a bin door 13 leading to the outside of the container and an internal bin door 14 leading to each battery bin 11. This facilitates personnel to carry out maintenance and cleaning operations. The design of the buffer bin 12 also avoids the disturbance of the temperature of the battery bin caused by the entry and exit of personnel. The heat - conducting partition 2 is preferably made of metal (such as aluminum, copper, etc.) or non - metal heat - conducting materials (such as carbon fiber material), and is in the shape of a flat plate or a corrugated plate. When the heat - conducting partition 2 is a corrugated plate, on the one hand, it can increase the heat - exchange area, and on the other hand, it can promote the air - flow disturbance near the heat - conducting partition and enhance the heat - exchange effect. Preferably, the storage batteries 5 in each battery bin 11 are arranged near the outer side of the battery bin 11 (so that there is a distance between the storage battery and the heat - conducting partition, facilitating the flow of air and heat - exchange with the heat - conducting partition 2); The two air conditioners 3 of the air - conditioning refrigeration unit are respectively arranged at different ends on the outer sides of the two battery bins 11 (diagonally arranged); The dust - proof and rain - proof air - conditioning air outlet device 41 of each battery bin 11 is arranged at one end of the battery bin 11 far from the air conditioner 3 on the outer side (at the other two diagonal positions). The dust - proof and rain - proof air - conditioning air outlet device 41 is preferably a louver - type air outlet.

[0039] The dust - proof and sand - proof air - conditioning air inlet device 41 preferably includes an air inlet 411, a dust - proof filter screen 412 arranged outside the air inlet 411, and a multi - stage filter screen arranged in sequence inside the air inlet 411. Dust - collecting chambers 418 are provided on both sides of the multi - stage filter screen. The air - permeability of the multi - stage filter screen decreases sequentially from the outside to the inside, and there are distances between the first - stage filter screen and the air inlet 411 and between each stage of filter screens, respectively forming air ducts. The ends of the air ducts are provided with air pipes 417 for connecting to the dust - collecting chambers 418. As Figure 6As shown in the figure, in this embodiment, the dust and sand-proof air inlet device 41 of the air conditioner preferably further includes an air inlet 411, a dust-proof filter screen 412 disposed outside the air inlet 411, and a primary filter screen 413 and a secondary filter screen 414 sequentially disposed inside the air inlet 411. Dust collection chambers 418 are provided on both sides of the primary filter screen 413 and the secondary filter screen 414. The air permeability of the secondary filter screen 414 is less than that of the primary filter screen 413, and there are distances between the primary filter screen 413 and the air inlet 411 and between the primary filter screen 413 and the secondary filter screen 414, respectively forming a primary air duct 415 and a secondary air duct 416. Air ducts 417 for connecting to the dust collection chambers 418 are provided at the ends of the primary air duct 415 and the secondary air duct 416. Large particle dust and sand are filtered out by the dust-proof filter screen 412, and then filtered by multiple filter screens. At the same time, due to the inconsistent air permeability of the filter screens, air ducts are formed, and the dust is sent into the dust collection chamber through the air ducts, improving the dust-free degree of the cold air in the system, extending the service life of the air conditioning system, and also avoiding the influence of dust layers and the like entering the battery compartment on the use of the storage battery.

[0040] As Figures 4 to 5 shown, the storage battery 5 is preferably disposed in the battery compartment 11 through a storage battery bracket. The storage battery bracket preferably includes a bracket body and a fixing frame disposed on the bracket body for fixing the storage battery 5; the bracket body includes a multi-layer beam structure 61 and a plurality of columns 62 surrounding the multi-layer beam structure 61 and used for supporting the multi-layer beam structure 61. The beam structure 61 includes two parallel cross beams 611 and side beams 612 disposed at both ends of the two cross beams 611. One end of the side beam 612 extends forward to form an operation position (convenient for personnel to stand and operate on the storage battery). The fixing frame includes a tray frame 71 for supporting the storage battery 5 and a wide pressure strip 72 for pressing on the top of the storage battery 5. A plurality of fixing lugs 73 are provided outside the tray frame 71, and fixing holes 74 are provided on the fixing lugs 73. Through holes matching the fixing holes 74 are provided on the two cross beams 611 of the beam structure 61. The wide pressure strip 72 is passed through the tray frame 71 for fixing the storage battery 5. The storage battery bracket is designed as a protruding embedded type to prevent the left, right, front, and back movement of the storage battery. A wide pressure strip is designed (the width of the wide pressure strip can be slightly wider, for example, 3 - 10 cm) to limit the up and down movement of the storage battery and at the same time reduce the local stress of the pressure strip. This design can effectively avoid physical damage to the storage battery. Further, side columns can be provided on the side of the bracket body facing the outside of the battery compartment 11 to facilitate the installation of the bracket body.

[0041] The present invention adopts a two-way layered convection heat dissipation system. The air outlet directions of the air conditioners on both sides are opposite, and cold air is sent into the separated spaces on both sides of the heat conduction partition. The air flow is separated by the heat conduction partition, and then heat transfer occurs on both sides through the heat conduction partition to evenly the fluid temperatures on both sides. The present invention can effectively improve the temperature uniformity of the storage batteries in the main body target, efficiently balance the temperatures of the storage batteries in the energy storage battery compartment, extend the service life of the storage batteries, and avoid the occurrence of system energy storage and discharge failures caused by the difference in the degree of aging of the storage batteries due to the uneven temperature of the storage batteries. Further, the dust-proof and sand-proof design of the air inlet of the air conditioner and the louver design of the air outlet adopted by the present invention, and also including the design of the battery bracket, can effectively improve the environmental adaptability of the energy storage battery compartment.

[0042] The heat conduction partition divides the space in the compartment into two battery compartments. An air conditioner for refrigeration is arranged opposite to each other in the two battery compartments. The storage batteries (preferably installed on the battery brackets) are respectively arranged on both sides of the heat conduction partition. When the system needs refrigeration, the cold air passes through the dust-proof and sand-proof air inlet devices on both sides, and large-volume dust is filtered out by the first-layer dust filter and enters the primary air duct. The air in the primary air duct is filtered twice by the primary filter, and the dust is brought into the dust collection chamber through the air duct by the air flow. The gas enters the secondary air duct and is filtered by the secondary filter. The dust is sent into the dust collection chamber in the same way, and so on. Subsequently, the cold air is respectively sent into the battery compartments by the air conditioners on both sides to dissipate heat from the storage batteries. The gas flow directions are opposite due to the left and right of the heat conduction partition. At the same time, due to the high heat conductivity of the heat conduction partition and the inconsistency of the gas temperatures on both sides at the same position of the partition, a heat exchange reaction occurs to ensure the temperature consistency in the battery compartment. Then the air is discharged from the air outlet. The present invention further designs the battery bracket to stably hold the storage batteries in the bracket to prevent the collision and dropping accidents of the storage batteries caused by vibration.

[0043] The air conditioner in this embodiment can adopt a fresh air type air conditioner.

[0044] The above description of the embodiments is for the convenience of those of ordinary skill in the art to understand and use the invention. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative labor. Therefore, the present invention is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. A high-adaptability bidirectional hierarchical convective energy storage battery bin, characterized in that Comprising: A bin body (1), A heat-conducting partition (2) for dividing the inner space of the bin body (1) into two side-by-side battery bins (11), and the battery bins (11) are used to accommodate storage batteries (5). An air-conditioning refrigeration unit composed of air conditioners (3) respectively arranged in the two battery bins (11), and the two air conditioners (3) are arranged in a diverging manner facing each other for blowing cold air into the corresponding battery bins (11) for refrigeration. An air inlet and outlet unit composed of a dust and sand-proof air-conditioning air inlet device (41) and a dust and rain-proof air-conditioning air outlet device (42) arranged in each battery bin (11), and the dust and sand-proof air-conditioning air inlet device (41) is arranged in cooperation with the air conditioner (3). Wherein, the storage batteries (5) in each battery bin (11) are arranged close to the outer side of the battery bin (11); the two air conditioners (3) of the air-conditioning refrigeration unit are respectively arranged at different ends on the outer sides of the two battery bins (11); the dust and rain-proof air-conditioning air outlet device (42) of each battery bin (11) is arranged at one end of the outer side of the battery bin (11) far from the air conditioner (3). The dust and sand-proof air-conditioning air inlet device (41) includes an air inlet (411), a dust-proof filter screen (412) arranged on the outer side of the air inlet (411), and a primary filter screen (413) and a secondary filter screen (414) sequentially arranged on the inner side of the air inlet (411). Dust collection chambers (418) are arranged on both sides of the primary filter screen (413) and the secondary filter screen (414). The air permeability of the secondary filter screen (414) is less than that of the primary filter screen (413), and there are distances between the primary filter screen (413) and the air inlet (411) and between the primary filter screen (413) and the secondary filter screen (414), respectively forming a primary air duct (415) and a secondary air duct (416). Air ducts (417) for connecting with the dust collection chambers (418) are arranged at the ends of the primary air duct (415) and the secondary air duct (416).

2. The high-adaptability bidirectional stratified convection energy storage battery bin according to claim 1, wherein The bin body (1) is a container, and a buffer bin (12) is arranged at one end of the container. The heat-conducting partition (2) is arranged between the other end of the container and the buffer bin (12); the buffer bin (12) is provided with a bin door (13) for leading to the outside of the container and an inner bin door (14) for leading to each battery bin (11).

3. A highly adaptable two-way stratified convection energy storage battery bin according to claim 1, characterized in that, The heat-conducting partition (2) is made of a metal or non-metal heat-conducting material and is in a flat plate shape or a corrugated plate shape.

4. A highly adaptable two-way stratified convection energy storage battery bin according to claim 1, characterized in that, The dust and rain-proof air-conditioning air outlet device (42) is a louvered air outlet.

5. A highly adaptable two-way stratified convection energy storage battery bin according to claim 1, characterized in that, The storage battery (5) is arranged in the battery bin (11) through a storage battery bracket.

6. A highly adaptable two-way stratified convection energy storage battery bin according to claim 5, characterized in that, The storage battery bracket includes a bracket body and a fixing frame arranged on the bracket body for fixing the storage battery (5); the bracket body includes a multi-layer beam structure (61) and a plurality of columns (62) surrounding the multi-layer beam structure (61) and used for supporting the multi-layer beam structure (61). The beam structure (61) includes two parallel cross beams (611) and side beams (612) arranged at both ends of the two cross beams (611), and one end of the side beam (612) extends forward to form an operation position.

7. A highly adaptable two-way stratified convection energy storage battery bin according to claim 6, characterized in that, The described fixing frame includes a tray frame (71) for supporting the storage battery (5) and a wide pressure strip (72) for pressing on the top of the storage battery (5). A plurality of fixing lugs (73) are provided on the outside of the tray frame (71), and fixing holes (74) are provided on the fixing lugs (73). Through holes matching the fixing holes (74) are provided on two cross beams (611) of the beam structure (61). The wide pressure strip (72) is passed through the tray frame (71) for fixing the storage battery (5).

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