A modular energy storage battery temperature control cabinet and working method thereof

Abstract

The present invention relates to the field of temperature control cabinets, and discloses a modular energy storage battery temperature control cabinet and a working method thereof, comprising a cabinet body, a battery compartment and a cooling assembly installed in the cabinet body, wherein the cooling assembly is arranged close to the battery compartment, and the number of battery compartments is arranged in multiples, and the cooling assembly comprises a symmetrically arranged cooling pipe group, and the two cooling pipe groups are arranged close to the battery compartment; the cooling pipe group comprises two main pipe bodies, a secondary pipe body and a control valve, and during the cooling process, when the temperature controller detects that the temperature in the battery compartment exceeds a preset threshold value, and the set threshold value can be changed according to the needs of the user, it is not used as a fixed parameter and condition, and a signal will be sent to the air compressor and the cold air pump, and the opening state of the control valve will be controlled at the same time. The air compressor provides compressed fluid to the two main pipe bodies through a conduit 1, and the fluid flows in the arched pipe and the straight pipe of the main pipe body, effectively taking away the heat from the battery compartment.

Description

Technical Field

[0001] The invention relates to the field of temperature control cabinets, and in particular to a modular energy storage battery temperature control cabinet and a working method thereof. Background Art

[0002] In battery energy storage technology, temperature is a key factor affecting battery performance, life and safety. With the continuous advancement of battery technology and the growing demand for energy storage, how to effectively control the operating temperature of the battery has become an urgent problem to be solved, especially in modular energy storage battery systems. Since the working status and performance of each single battery may be different, each battery module needs to be independently temperature controlled to ensure the stability and safety of the entire system.

[0003] Traditional battery temperature control methods mostly rely on reducing current to achieve cooling, but the effect of this method is not ideal. First, reducing current will slow down the charging speed, thereby extending the energy storage time and reducing the efficiency of the system. Second, simply controlling the temperature by reducing current may not be able to effectively cope with the large fluctuations in battery temperature under extreme environmental conditions. Therefore, a more efficient and flexible modular energy storage battery temperature control cabinet and its working method are needed to solve these problems. Summary of the invention

[0004] The present invention provides a modular energy storage battery temperature control cabinet and a working method thereof, which overcomes the shortcomings described in the background technology.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A modular energy storage battery temperature control cabinet comprises a cabinet body, a battery compartment and a cooling assembly installed in the cabinet body, wherein the cooling assembly is arranged close to the battery compartment, and the number of battery compartments is arranged in plurality, and the cooling assembly comprises symmetrically arranged cooling tube groups, and the two cooling tube groups are arranged close to the battery compartment;

[0007] The cooling pipe group includes two main pipe bodies, a sub-pipe body and a control valve. The two main pipe bodies are connected to a conduit 1. The conduit 1 provides fluid flow through an external air compressor. The control valve is connected to one of the main pipe bodies and the sub-pipe body respectively. The other main pipe body is connected to the control valve through the sub-pipe body. The control valve is connected to a conduit 2. The control valve is connected to an external cold air pump through the conduit 2 to provide cold air flow.

[0008] The main body is composed of an arched tube and a straight tube connected to each other, the straight tube is connected to the lower end of the arched tube, and the auxiliary tube is connected to the side of the straight tube. When the fluid is provided to flow through the conduit 1 and flows into the main body, it will be divided into the main body and the auxiliary tube through the straight tube;

[0009] The battery compartment is provided with a plurality of temperature controllers for monitoring the temperature, and all the temperature controllers are connected with the air compressor, the cold air pump and the control valve signal.

[0010] A preferred technical solution, the control valve is provided with a connecting pipe body, the connecting pipe body is provided with a connecting port 1, a connecting port 2, and a connecting port 3 which are connected to each other, the connecting pipe body is in an F-shaped structure, the connecting port 2 is arranged at the lower end of the connecting pipe body, the connecting port 1 and the connecting port 3 are both arranged on the side of the connecting pipe body, and a regulating valve core for adjusting the flow direction of the fluid is arranged in the connecting port 3, and the regulating valve core is driven to rotate by a motor;

[0011] The regulating valve core is arranged near the lower part of the connecting pipe body, and a one-way valve is also arranged in the connecting pipe body. The one-way valve is arranged between connecting port 1 and connecting port 2, and the one-way valve is located above the regulating valve core. The direction in which the fluid flows from connecting port 1 to connecting port 2 is a high-resistance direction.

[0012] A preferred technical solution is that a plurality of discharge ports are arrayed on the surface of the main body, and a guide plate is provided inside the main body near each discharge port. The guide plate is inclined in the opposite direction of the fluid flow, while the guide plate near the lower side is inclined in the same direction of the fluid flow. When the fluid flows, it is guided by the guide plate and flows out through the discharge port near the guide plate.

[0013] A preferred technical solution, the connecting pipe body is composed of a vertical pipe and two horizontal pipes, the two horizontal pipes are respectively connected to the upper and lower parts of the side of the vertical pipe, the connecting port 1 is arranged at the end of the upper horizontal pipe, the connecting port 3 is arranged at the end of the lower horizontal pipe, the one-way valve is arranged in the vertical pipe, and the regulating valve core is arranged in the horizontal pipe located at the lower side;

[0014] A secondary connecting pipe is connected between the two horizontal pipes, and the horizontal pipe located on the lower side is respectively connected with the vertical pipe and the secondary connecting pipe. The regulating valve core is arranged at the connecting end of the secondary connecting pipe and the horizontal pipe located on the lower side to control the fluid flowing inward from the third connecting port to flow to the first connecting port or the second connecting port by rotating the regulating valve core.

[0015] A preferred technical solution, the regulating valve core is provided with a channel 1 and a channel 2 on the upper and lower sides respectively, the channel 1 is an L-shaped structure, the channel 2 is a T-shaped structure, and a raised portion is provided on the surface of the vertical pipe near the regulating valve core, and the raised portion is used to block the channel 1 or the channel 2 located at the lower side to prevent the channel 1 or the channel 2 from being connected to the connecting port 2;

[0016] When the regulating valve core is rotated until the channel 1 is located on the upper side of the channel 2, the communication port 3 is connected with the auxiliary communication pipe through the channel 1;

[0017] When the regulating valve core is rotated until the channel 2 is located on the upper side of the channel 1, the communication port 3 is respectively connected with the auxiliary communication pipe and the communication port 2 through the channel 2;

[0018] When the regulating valve core is rotated until the channel 1 and the channel 2 are vertical, the communication port 3 is not connected with the communication port 1 and the communication port 2.

[0019] A preferred technical solution, the one-way valve includes symmetrically arranged closing plates, the closing plates are a conical structure with a larger upper portion and a smaller lower portion, and the side surfaces of the closing plates are arranged on a deformation groove that is recessed inwardly. When the fluid flows upward from the bottom of the one-way valve, the two closing plates are respectively bent using the deformation grooves on their side surfaces as guides and expanded outwards, so that a channel for fluid flow is formed between the two closing plates, and the channel is connected to the connecting pipe body.

[0020] A working method applied to the modular energy storage battery temperature control cabinet, in which the cabinet is connected to the cooling component through an air compressor or a cold air pump during operation, and each battery compartment is cooled by the cooling component;

[0021] Among them, the air compressor and the cold air pump are used to create fluid flow, so that the fluid is poured into the cooling component, and when the fluid flows into the conduit or the main body, the fluid flows outward through the outlets set on the surface of each main body, and the temperature around the battery compartment is taken away by the flow of the fluid;

[0022] Among them, when the fluid flows into the main body, it will flow along the main body. Since the guide plate is set close to the discharge port, it can be guided by the guide plate when flowing. The guide plate is used to change the flow direction of the fluid, increase the flow of part of the fluid toward the discharge port, and increase the flow rate of the fluid out of the discharge port.

[0023] Compared with the prior art, this technical solution has the following advantages:

[0024] During the cooling process, when the temperature controller detects that the temperature in the battery compartment exceeds the preset threshold, and the threshold can be changed according to the needs of the user, it will not be used as a fixed parameter and condition, and will send a signal to the air compressor and the air conditioning pump, and control the opening state of the control valve at the same time. The air compressor provides compressed fluid to the two main pipes through the conduit 1. The fluid flows in the arched pipe and the straight pipe of the main pipe, effectively taking away the heat from the battery compartment. At the same time, part of the fluid enters the other main pipe through the auxiliary pipe and the control valve on the side of the straight pipe, forming a circulating flow, which further enhances the cooling effect.

[0025] In addition, the cold air pump provides cold air fluid through the two-way control valve of the duct. After the cold air fluid is mixed with the fluid in the main pipe, a cooling fluid with a lower temperature is formed, thereby more effectively reducing the temperature in the battery compartment. This design not only improves the cooling efficiency, but also avoids the problems of slower charging speed and longer energy storage time due to reduced current. This technical solution solves the problem that the traditional battery temperature control method mentioned in the background technology is not ideal and cannot effectively cope with the large fluctuations in battery temperature under extreme environmental conditions. By precisely controlling the flow and temperature of the cooling fluid, independent and efficient temperature control of the battery modules in the battery compartment is achieved, ensuring the stability and safety of the entire modular energy storage battery system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 This is an overall diagram of the present invention.

[0028] Figure 2 A schematic diagram of the cooling assembly.

[0029] Figure 3 It is a schematic diagram of the local structure of the main pipe.

[0030] Figure 4 A schematic diagram of the battery compartment and cooling assembly.

[0031] Figure 5 Schematic diagram of the control valve.

[0032] Figure 6 This is a front view schematic diagram of the control valve.

[0033] Figure 7 A half-section diagram of a control valve.

[0034] Figure 8 It is a schematic diagram showing that the connecting port three is connected with the connecting port one.

[0035] Fig. 9 It is a schematic diagram that the connecting port three is connected with the connecting port one and the connecting port two respectively.

[0036] Fig.10 It is a schematic diagram showing that the connecting port 3 is not connected with the connecting port 1 and the connecting port 2.

[0037] Fig.11 Schematic diagram of a one-way valve.

[0038] Fig.12 Schematic diagram of the closed piece.

[0039] In the figure: cabinet 1;

[0040] Battery compartment 2, temperature controller 21;

[0041] Cooling assembly 3, main pipe body 31, outlet 311, guide plate 312, auxiliary pipe body 32, control valve 33, connecting pipe body 331, auxiliary connecting pipe 332, motor 333, regulating valve core 334, channel 1 341, channel 2 342, one-way valve 335, closing piece 351, deformation groove 352;

[0042] A communication port 1 101, a communication port 2 102, and a communication port 3 103;

[0043] Air compressor 4, conduit 1 41;

[0044] Air conditioning pump 5, conduit 2 51. DETAILED DESCRIPTION

[0045] like Figures 1 to 12 As shown, the present invention proposes a modular energy storage battery temperature control cabinet, including a cabinet 1, and a battery compartment 2 and a cooling assembly 3 installed in the cabinet 1, the cooling assembly 3 is arranged close to the battery compartment 2, the number of battery compartments 2 is arranged in plurality, the cooling assembly 3 includes symmetrically arranged cooling tube groups, and the two cooling tube groups are arranged close to the battery compartment 2;

[0046] The cooling pipe group includes two main pipe bodies 31, a sub-pipe body 32 and a control valve 33. The two main pipe bodies 31 are both connected to a conduit 1 41. The conduit 1 41 provides fluid flow through an external air compressor 4. The control valve 33 is respectively connected to one of the main pipe bodies 31 and the sub-pipe body 32. The other main pipe body 31 is connected to the control valve 33 through the sub-pipe body 32. The control valve 33 is connected to a conduit 2 51. The control valve 33 is connected to an external cold air pump 5 through the conduit 2 51 to provide cold air flow.

[0047] The main body 31 is composed of an arched tube and a straight tube connected to each other. The straight tube is connected to the lower end of the arched tube, and the auxiliary tube 32 is connected to the side of the straight tube. When the fluid is provided to flow through the conduit 1 41 and the fluid flows into the main body 31, it will be divided into the main body 31 and the auxiliary tube 32 through the straight tube.

[0048] The battery compartment 2 is provided with a plurality of temperature controllers 21 for monitoring the temperature, and all temperature controllers 21 are signal-connected to the air compressor 4, the cold air pump 5 and the control valve 33;

[0049] During the cooling process, when the temperature controller 21 detects that the temperature in the battery compartment 2 exceeds the preset threshold value, and the set threshold value can be changed according to the needs of the user, it is not a fixed parameter and condition, and a signal will be sent to the air compressor 4 and the cold air pump 5, and the opening state of the control valve 33 will be controlled at the same time. The air compressor 4 provides compressed fluid to the two main pipes 31 through the conduit 1 41. The fluid flows in the arched pipe and the straight pipe of the main pipe 31, effectively taking away the heat from the battery compartment 2. At the same time, part of the fluid enters the other main pipe 31 through the auxiliary pipe 32 and the control valve 33 on the side of the straight pipe, forming a circulating flow, which further enhances the cooling effect.

[0050] In addition, the cold air pump 5 provides cold air fluid to the control valve 33 through the conduit 2 51. After the cold air fluid is mixed with the fluid in the main pipe 31, a cooling fluid with a lower temperature is formed, thereby more effectively reducing the temperature in the battery compartment 2. This design not only improves the cooling efficiency, but also avoids the problems of slower charging speed and longer energy storage time due to reduced current. This technical solution solves the problem that the traditional battery temperature control method mentioned in the background technology is not ideal and cannot effectively cope with the large fluctuations in battery temperature under extreme environmental conditions. By precisely controlling the flow and temperature of the cooling fluid, independent and efficient temperature control of the battery modules in the battery compartment 2 is achieved, ensuring the stability and safety of the entire modular energy storage battery system.

[0051] In terms of working principle, the cooling pipe group uses the compressed fluid provided by the air compressor 4 and the cold air fluid provided by the cold air pump 5, and realizes the circulation and temperature regulation of the cooling fluid through the precise control of the control valve 33. The temperature controller 21 monitors the temperature in the battery compartment 2 in real time, and adjusts the flow and temperature of the cooling fluid as needed, so as to ensure that the battery always works within the optimal temperature range. This intelligent temperature control mechanism greatly improves the performance and reliability of the modular energy storage battery system.

[0052] The control valve 33 is provided with a connecting pipe body 331, and the connecting pipe body 331 is provided with a connecting port 1 101, a connecting port 2 102, and a connecting port 3 103 which are interconnected. The connecting pipe body 331 is in an F-shaped structure, and the connecting port 2 102 is arranged at the lower end of the connecting pipe body 331. The connecting port 1 101 and the connecting port 3 103 are both arranged on the side of the connecting pipe body 331. The connecting port 3 103 is provided with a regulating valve core 334 for adjusting the flow direction of the fluid, and the regulating valve core 334 is driven to rotate by a motor 333. The connecting port 3 103 is connected with the conduit 2 51, and the connecting port 2 102 is connected with the auxiliary pipe body 32 in one of the cooling pipe groups, and the connecting port 1 is connected with the main pipe body 31 in the other cooling pipe group. The main pipe bodies 31 in the two cooling pipe groups are connected through the auxiliary pipe body 32 and the control valve 33.

[0053] The regulating valve core 334 is arranged near the lower part of the connecting tube body 331, and a one-way valve 335 is also arranged in the connecting tube body 331. The one-way valve 335 is arranged between the connecting port 1 101 and the connecting port 2 102, and the one-way valve 335 is located above the regulating valve core 334. The direction in which the fluid flows from the connecting port 1 101 to the connecting port 2 102 is a high-resistance direction.

[0054] A preferred technical solution is that a plurality of discharge ports 311 are arrayed on the surface of the main body 31, and a guide plate 312 is provided near each discharge port 311 in the main body 31. The guide plate 312 is inclined in the opposite direction of the fluid flow, and the guide plate 312 near the lower side is inclined in the same direction of the fluid flow. When the fluid flows, it is guided by the guide plate 312 and flows out through the discharge port 311 near the guide plate 312.

[0055] The connecting pipe body 331 is composed of a vertical pipe and two horizontal pipes. The two horizontal pipes are respectively connected to the upper and lower parts of the side of the vertical pipe. The connecting port 101 is arranged at the end of the upper horizontal pipe, and the connecting port 3 103 is arranged at the end of the lower horizontal pipe. The one-way valve 335 is arranged in the vertical pipe, and the regulating valve core 334 is arranged in the horizontal pipe located at the lower side.

[0056] A secondary connecting pipe 332 is connected between the two horizontal pipes. The horizontal pipe on the lower side is respectively connected to the vertical pipe and the secondary connecting pipe 332. The regulating valve core 334 is arranged at the connecting end of the secondary connecting pipe 332 and the horizontal pipe on the lower side to control the fluid flowing inward from the connecting port three 103 to flow to the connecting port one 101 or the connecting port two 102 by rotating the regulating valve core 334.

[0057] Furthermore, the regulating valve core 334 is provided with a channel 1 341 and a channel 2 342 on the upper and lower sides, respectively. The channel 1 341 is an L-shaped structure, and the channel 2 342 is a T-shaped structure. A protrusion is provided on the surface of the vertical pipe near the regulating valve core 334, and the protrusion is used to block the channel 1 341 or the channel 2 342 located at the lower side to prevent the channel 1 341 or the channel 2 342 from being connected to the connecting port 2 102;

[0058] When the regulating valve core 334 is rotated until the channel 1 341 is located above the channel 2 342 , the communication port 3 103 is connected to the secondary communication pipe 332 through the channel 1 341 ;

[0059] When the regulating valve core 334 is rotated until the second channel 342 is located above the first channel 341 , the third communication port 103 is connected to the auxiliary communication pipe 332 and the second communication port 102 through the second channel 342 ;

[0060] When the regulating valve core 334 is rotated until the channel 1 341 and the channel 2 342 are vertical, the communication port 3 103 is not connected with the communication port 1 101 and the communication port 2 102;

[0061] The connecting tube body 331 is an F-shaped structure, and the three connecting ports inside it: connecting port 1 101, connecting port 2 102 and connecting port 3 103, respectively undertake different fluid transmission tasks. Connecting port 1 101 is usually used as a flexible inlet or outlet for the fluid, and its flow direction is precisely controlled by the regulating valve core 334. Connecting port 1 101 and connecting port 2 102 are located at the head and tail ends of the connecting tube body, and are the main outlets for the cooling fluid, responsible for transporting the cooled fluid to the surrounding of the battery compartment 2 for cooling. Due to the setting of the one-way valve 335, the path of the fluid flowing from connecting port 1 101 to connecting port 2 102 is designed to be a high-resistance direction, ensuring that the fluid will not easily flow out without specific control, thereby maintaining the stability and efficiency of the cooling system.

[0062] The cooperation between connecting port three 103 and regulating valve core 334 is the key to realize the adjustment of fluid flow direction. The regulating valve core 334, driven by the motor 333, can flexibly rotate and change the direction of its internal channel, so as to control the ratio of fluid flowing from connecting port three 103 to connecting port one 101 or connecting port two 102. When the cooling effect needs to be enhanced, the regulating valve core will be adjusted to allow more fluid to flow to connecting port two through connecting port three, and then be delivered to the battery compartment for cooling. On the contrary, if the system needs to reduce the amount of cooling fluid, the regulating valve core will correspondingly reduce the fluid flowing to connecting port two, and may increase the fluid flowing to connecting port one for circulation or other purposes.

[0063] This fluid control mechanism works in coordination with the cold air pump 5 to achieve efficient control of the temperature in the battery compartment 2. The cold air pump 5, as a source of cooling fluid, produces a low-temperature fluid by compressing and expanding the refrigerant. It utilizes the physical properties of the refrigerant to absorb and release heat during the refrigeration cycle, thereby producing a cooling effect.

[0064] The one-way valve 335 includes symmetrically arranged closing pieces 351, which are tapered structures with a larger upper portion and a smaller lower portion, and the side surfaces of the closing pieces 351 are provided with inwardly recessed deformation grooves 352. When the fluid flows upward from the bottom of the one-way valve 335, the two closing pieces 351 are respectively bent with the deformation grooves 352 on the side surfaces as the guide points and spread outward, so that a channel for the fluid to flow is formed between the two closing pieces 351, and the channel is connected to the connecting pipe body 331.

[0065] The core structure of the one-way valve 335 is composed of symmetrically arranged closing pieces 351. These closing pieces are designed in a conical shape with a larger top and a smaller bottom. This shape not only enhances the sealing performance of the valve, but also enables a more uniform flow distribution when the fluid passes through. More importantly, the side of the closing piece is cleverly provided with an inwardly recessed deformation groove 352. This design is the key to the one-way valve to achieve its function. When the fluid flows upward from the bottom of the one-way valve 335, that is, when trying to flow from the connecting port 2 102 to the connecting port 1 101, the fluid will generate an upward thrust on the closing piece 351. Since the closing piece is a conical structure and has a deformation groove on the side, this thrust will cause the closing piece to move with its own force. The deformation groove on the side is bent as a fulcrum and expanded outward, so that a channel for fluid flow is formed between the two closing pieces. The channel is tightly connected to the connecting tube body 331, allowing the fluid to pass smoothly. However, when the fluid tries to flow from the opposite direction, that is, from connecting port 101 to connecting port 2 102, the situation is completely different. At this time, the thrust direction of the fluid on the closing piece is downward, but due to the conical design of the closing piece and the presence of the deformation groove, this thrust will make the closing piece fit more closely together, thereby closing the channel for the fluid to pass. This design ensures that the fluid can only pass through the one-way valve in one direction, effectively preventing the backflow of the cooling fluid and unnecessary energy loss.

[0066] A working method applied to the modular energy storage battery temperature control cabinet, in which the cabinet body 1 is connected to the cooling assembly 3 through the air compressor 4 or the cold air pump 5 during operation, and the cooling assembly 3 is used to cool down each battery compartment 2;

[0067] The air compressor 4 and the cold air pump 5 are used to create a fluid flow, allowing the fluid to flow into the cooling assembly 3. When the fluid flows into the conduit 1 41 or the main body 31, the fluid flows outward through the outlets 311 provided on the surface of each main body 31, and the temperature around the battery compartment 2 is taken away by the flow of the fluid.

[0068] Among them, when the fluid flows into the main body 31, it will flow along the main body 31. Since the guide plate 312 is set close to the discharge port 311, it can be guided by the guide plate 312 when flowing. The guide plate 312 is used to change the flow direction of the fluid, increase the amount of fluid guided toward the discharge port 311, and increase the flow rate of the fluid flowing out of the discharge port 311.

[0069] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A modular energy storage battery temperature control cabinet, characterized in that: The invention comprises a cabinet (1), and a battery compartment (2) and a cooling assembly (3) installed in the cabinet (1), wherein the cooling assembly (3) is arranged close to the battery compartment (2), the number of battery compartments (2) is arranged in plurality, and the cooling assembly (3) comprises symmetrically arranged cooling tube groups, and the two cooling tube groups are arranged close to the battery compartment (2); The cooling pipe group comprises two main pipe bodies (31), a sub-pipe body (32) and a control valve (33). The two main pipe bodies (31) are both connected to a conduit 1 (41). The conduit 1 (41) provides fluid flow through an external air compressor (4). The control valve (33) is respectively connected to one of the main pipe bodies (31) and the sub-pipe body (32). The other main pipe body (31) is connected to the control valve (33) through the sub-pipe body (32). The control valve (33) is connected to a conduit 2 (51). The control valve (33) is connected to an external cold air pump (5) through the conduit 2 (51) to provide cold air flow. The main pipe (31) is composed of an arched pipe and a straight pipe connected to each other, the straight pipe is connected to the lower end of the arched pipe, and the auxiliary pipe (32) is connected to the side of the straight pipe. When fluid flow is provided through the conduit 1 (41) and the fluid flows into the main pipe (31), it is divided into the main pipe (31) and the auxiliary pipe (32) through the straight pipe. The battery compartment (2) is provided with a plurality of temperature controllers (21) for monitoring the temperature, and all the temperature controllers (21) are signal-connected to the air compressor (4), the cold air pump (5) and the control valve (33); The control valve (33) is provided with a connecting pipe body (331), the connecting pipe body (331) is provided with a connecting port 1 (101), a connecting port 2 (102), and a connecting port 3 (103) which are connected to each other, the connecting pipe body (331) is in an F-shaped structure, the connecting port 2 (102) is arranged at the lower end of the connecting pipe body (331), the connecting port 1 (101) and the connecting port 3 (103) are both arranged on the side of the connecting pipe body (331), and a regulating valve core (334) for adjusting the flow direction of the fluid is arranged in the connecting port 3 (103), and the regulating valve core (334) is driven to rotate by a motor (333); The regulating valve core (334) is arranged near the lower part of the connecting pipe body (331), and a one-way valve (335) is also arranged in the connecting pipe body (331). The one-way valve (335) is arranged between the connecting port 1 (101) and the connecting port 2 (102), and the one-way valve (335) is located above the regulating valve core (334). The direction in which the fluid flows from the connecting port 1 (101) to the connecting port 2 (102) is a high-resistance direction. The main pipe body (31) has a plurality of discharge ports (311) arranged in an array on its surface. A guide plate (312) is provided near each discharge port (311) in the main pipe body (31). The guide plate (312) is inclined in the opposite direction of the fluid flow, while the guide plate (312) near the lower side is inclined in the same direction as the fluid flow. When the fluid flows, it is guided by the guide plate (312) and flows out through the discharge ports (311) near the guide plate (312).

2. A modular energy storage battery temperature control cabinet according to claim 1, characterized in that: The connecting pipe body (331) is composed of a vertical pipe and two horizontal pipes, the two horizontal pipes are respectively connected to the upper and lower parts of the side of the vertical pipe, the connecting port 1 (101) is arranged at the end of the upper horizontal pipe, the connecting port 3 (103) is arranged at the end of the lower horizontal pipe, the one-way valve (335) is arranged in the vertical pipe, and the regulating valve core (334) is arranged in the horizontal pipe located at the lower side; A secondary connecting pipe (332) is connected between the two horizontal pipes, and the horizontal pipe located at the lower side is respectively connected to the vertical pipe and the secondary connecting pipe (332). A regulating valve core (334) is arranged at the connection end between the secondary connecting pipe (332) and the horizontal pipe located at the lower side, so as to control whether the fluid flowing inward from the third connecting port (103) flows to the first connecting port (101) or the second connecting port (102) by rotating the regulating valve core (334).

3. A modular energy storage battery temperature control cabinet according to claim 2, characterized in that: The regulating valve core (334) is provided with a channel 1 (341) and a channel 2 (342) on the upper and lower sides respectively; the channel 1 (341) is an L-shaped structure, and the channel 2 (342) is a T-shaped structure; a raised portion is provided on the surface of the vertical pipe near the regulating valve core (334); the raised portion is used to block the channel 1 (341) or the channel 2 (342) located at the lower side, so as to prevent the channel 1 (341) or the channel 2 (342) from being connected to the connecting port 2 (102); When the regulating valve core (334) is rotated until the channel one (341) is located above the channel two (342), the communication port three (103) is connected to the auxiliary communication pipe (332) through the channel one (341); When the regulating valve core (334) is rotated until the second channel (342) is located above the first channel (341), the third communication port (103) is respectively connected to the auxiliary communication pipe (332) and the second communication port (102) through the second channel (342); When the regulating valve core (334) is rotated until the channel 1 (341) and the channel 2 (342) are in a vertical position, the communication port 3 (103) is no longer connected to the communication port 1 (101) and the communication port 2 (102).

4. A modular energy storage battery temperature control cabinet according to claim 3, characterized in that: The one-way valve (335) comprises symmetrically arranged closing plates (351), the closing plates (351) being a conical structure with a larger upper portion and a smaller lower portion, and the side surfaces of the closing plates (351) being arranged at an inwardly recessed deformation groove (352), and when the fluid flows upward from the bottom of the one-way valve (335), the two closing plates (351) are respectively bent using the deformation grooves (352) on their side surfaces as guide points and are spread outward, so that a channel for the fluid to flow is formed between the two closing plates (351), and the channel is connected to the connecting tube body (331).

5. A working method applied to the modular energy storage battery temperature control cabinet according to any one of claims 1 to 4, characterized in that: When the cabinet (1) is in operation, the air compressor (4) or the cold air pump (5) is connected to the cooling assembly (3), and the cooling assembly (3) is used to cool down each battery compartment (2); The air compressor (4) and the cold air pump (5) are both used to create a fluid flow, allowing the fluid to flow into the cooling component (3). When the fluid flows into the conduit 1 (41) or the main pipe (31), the fluid flows outward through the outlet (311) provided on the surface of each main pipe (31), and the temperature around the battery compartment (2) is removed by the flow of the fluid. When the fluid flows into the main pipe body (31), it will flow along the inside of the main pipe body (31). Since the guide plate (312) is arranged close to the discharge port (311), the fluid can be guided by the guide plate (312) during the flow. The guide plate (312) is used to change the flow direction of the fluid, thereby increasing the amount of fluid directed toward the discharge port (311) and increasing the flow rate of the fluid flowing out of the discharge port (311).

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