Temperature adjusting device and energy storage cabinet

Abstract

The utility model relates to a temperature adjusting device and an energy storage cabinet, the device comprises an air conditioning mechanism, a temperature control cavity, an air return cavity, an air inlet flow channel and an air outlet flow channel, the temperature control cavity and the air return cavity in a cabinet body are separately arranged, and the temperature control cavity is arranged in a gap between the cabinet body and a battery pack and can cover a key heat exchange area on the periphery of the battery pack; the second medium can fully flow through the gap area in the cabinet body, thereby eliminating the temperature dead angle, enabling the temperature distribution of each area in the cabinet body to be uniform, and remarkably reducing the temperature difference of different areas. And meanwhile, the device combines the double-circulation design of cabinet external circulation and cabinet internal circulation of the air conditioning mechanism, and efficient heat exchange between the cabinet external environment and the cabinet internal environment is realized through circulating flow of the first medium between the first medium temperature control part and the second medium temperature control part, so that the battery pack is ensured to keep the optimal working temperature under different working conditions.

Description

Technical Field

[0001] This application relates to the field of energy storage system technology, specifically to a temperature regulation device and an energy storage cabinet. Background Technology

[0002] Energy storage cabinets, as core equipment for energy storage and dispatch, are widely used in various scenarios such as renewable energy power generation systems, grid peak shaving and valley filling, emergency power supply, and distributed energy stations. Energy storage cabinets typically integrate a large number of densely packed battery packs, and the performance, cycle life, and operational safety of these battery packs are closely related to the ambient temperature inside the cabinet.

[0003] During the actual operation of energy storage cabinets, the battery packs continuously generate heat during charging and discharging. Simultaneously, changes in the external ambient temperature are transferred to the interior through the cabinet walls, causing fluctuations in the internal temperature. Generally, battery packs have an optimal operating temperature range. When the internal temperature is too high, it accelerates battery aging, reduces charging and discharging efficiency, and may even trigger safety hazards such as thermal runaway. Conversely, when the temperature is too low, the battery capacity and output power decrease significantly, similarly affecting the normal operation of the energy storage cabinet. Therefore, maintaining a stable internal temperature is a key technical requirement for ensuring the reliable and efficient operation of the energy storage system.

[0004] Existing energy storage cabinets typically utilize simple air ducts to circulate airflow inside and outside the cabinet for heat dissipation. However, due to the numerous gaps between the battery pack and the cabinet walls, temperature dead zones are easily formed, which cannot be effectively regulated by airflow. This results in significant temperature differences between different areas inside the cabinet, making temperature fluctuations difficult to control. Furthermore, the airflow in existing duct structures is prone to turbulence during circulation, leading to low heat exchange efficiency between the temperature control medium and the cabinet interior. This results in an inability to quickly respond to changes in heat generation from the battery pack, further exacerbating internal temperature instability.

[0005] Therefore, optimizing the temperature regulation structure of energy storage cabinets and accurately controlling the temperature of each area inside the cabinet through a reasonable airflow channel arrangement to suppress temperature fluctuations has become a technical problem that needs to be solved urgently for existing energy storage cabinets. Utility Model Content

[0006] To overcome the shortcomings of the prior art, this application provides a temperature regulation device and an energy storage cabinet, specifically adopting the following technical solution:

[0007] A temperature regulating device is used to regulate the temperature inside the cabinet of an energy storage cabinet. The temperature regulating device includes an air conditioning mechanism, a temperature control chamber, a return air chamber, an air inlet channel, and an air outlet channel.

[0008] The air conditioning system includes an external circulation mechanism and an internal circulation mechanism. The external circulation mechanism includes a first medium temperature control, while the internal circulation mechanism includes an internal air inlet, an internal air return outlet, and a second medium temperature control. A first medium is circulated between the first and second medium temperature control. The first medium temperature control allows heat exchange between the first medium and the outside of the cabinet. The second medium temperature control allows heat exchange between the first medium and the second medium. The internal air inlet and internal air return outlet are located on the front or rear wall of the cabinet.

[0009] The temperature control chamber and the return air chamber are connected yet separated and arranged inside the cabinet. The return air chamber is located at the front of the cabinet and is situated in the gap between the front wall of the cabinet and the front surface of the battery pack inside the cabinet. The temperature control chamber includes two side temperature control chambers, which are distributed opposite each other on both sides of the cabinet and are situated in the gap between the side wall of the cabinet and the side surface of the battery pack inside the cabinet. A baffle is provided between the side temperature control chamber and the return air chamber. The baffle is fixedly connected to a support frame located inside the cabinet between the side temperature control chamber and the return air chamber. The baffle is used to separate the side temperature control chamber and the return air chamber.

[0010] The air inlet duct connects the air inlet inside the cabinet to the temperature control chamber, and the air outlet duct connects the return air chamber to the return air inlet inside the cabinet. The second medium introduced through the air inlet inside the cabinet is guided to the temperature control chamber through the air inlet duct, and the temperature of the temperature control chamber is regulated by the second medium. The second medium that has participated in the temperature regulation in the return air chamber is guided to the return air inlet inside the cabinet through the air outlet duct.

[0011] Optionally: The air inlet channel includes an air inlet guide cavity and a first guide cavity. The air inlet guide cavity is used to connect the air inlet inside the cabinet and the first guide cavity. The air inlet guide cavity adopts a hollow quadrangular truncated box, and one end of the air inlet guide cavity is provided with a first inlet end adapted to the air inlet inside the cabinet. The first inlet end abuts against the edge of the air inlet inside the cabinet. The other end of the air inlet guide cavity is provided with a first outlet end, and the first outlet end is fixedly connected to the first guide cavity. The first guide cavity is used to connect the air inlet guide cavity and the side temperature control cavity.

[0012] Furthermore, the first air intake cavity adopts a hollow box body. The first air intake cavity is located at the gap between the top surface of the cabinet and the battery pack at the top of the cabinet. The side surface of the first air intake cavity includes a first air inlet and two first air outlets. The first air inlet is arranged on the side surface of the first air intake cavity near the top of the return air cavity and is connected to the first outlet end of the air intake cavity. The two first air outlets are arranged opposite to each other on both sides of the cabinet, and the first air outlet is arranged on the side surface of the first air intake cavity near the top of the side temperature control cavity and is connected to the side temperature control cavity.

[0013] Furthermore, the air outlet duct is arranged between the return air inlet and the return air chamber inside the cabinet.

[0014] Optional: The temperature control cavity also includes a rear temperature control cavity, which is located at the rear of the cabinet and in the gap between the rear wall of the cabinet and the rear surface of the battery pack inside the cabinet.

[0015] Optional: The air outlet duct includes an air outlet guide cavity and a second guide cavity. The air outlet guide cavity is used to connect the second guide cavity and the return air vent inside the cabinet. The air outlet guide cavity adopts a hollow box fixed to the rear wall of the cabinet. The top of the air outlet guide cavity is provided with a second inlet end, which is connected to the second guide cavity. A second outlet end adapted to the return air vent inside the cabinet is provided on the lower side surface of the air outlet guide cavity. The second outlet end is connected to the return air vent inside the cabinet. The second guide cavity is used to connect the return air cavity and the air outlet guide cavity.

[0016] Furthermore, the second air guide cavity adopts a hollow box body. The second air guide cavity is located at the gap between the top surface of the cabinet and the battery pack at the top of the cabinet. The side surface of the second air guide cavity includes a first return air inlet and a first return air outlet. The first return air inlet is arranged on the side surface of the second air guide cavity near the top of the return air cavity and is connected to the return air cavity. The first return air outlet is arranged on the side surface of the second air guide cavity near the top of the rear temperature control cavity and is directly opposite the second inlet end of the air outlet guide cavity.

[0017] Furthermore, the air inlet channel is arranged between the air inlet inside the cabinet and the rear temperature control chamber.

[0018] Optional: A flow channel is provided between the temperature control chamber and the return air chamber. This flow channel adopts multiple compartment flow channels. Each compartment flow channel is arranged in the gap between adjacent battery packs in the cabinet. The second medium located in the temperature control chamber is guided to the return air chamber through the compartment flow channels.

[0019] Optional: An air inlet guide plate is provided at the air inlet inside the cabinet. The air inlet guide plate and the air inlet inside the cabinet form an air guide opening facing the bottom of the cabinet. The cross-section of the air guide opening increases from top to bottom.

[0020] Optionally: When the air conditioning unit is in cooling mode, the heat of the second medium is exchanged to the first medium inside the second medium temperature control through the second medium temperature control, and the heat of the first medium is exchanged to the outside of the cabinet through the first medium temperature control.

[0021] Optionally: When the air conditioning unit is in heating mode, heat from outside the cabinet is exchanged to the first medium inside the first medium temperature control via the first medium temperature control, and heat from the first medium is exchanged to the second medium via the second medium temperature control.

[0022] In addition, this application also discloses an energy storage cabinet, which is equipped with the aforementioned temperature regulation device.

[0023] The technical solution of this application achieves the following beneficial effects:

[0024] The temperature control device of this application precisely positions the temperature control chamber in the gap between the cabinet and the battery pack, fully covering the key heat exchange area around the battery pack. Combined with a baffle plate, it effectively separates the temperature control chamber and the return air chamber, preventing cross-flow of air and ensuring that the second medium can fully flow through the gap area inside the cabinet. This eliminates the temperature dead zones easily formed by the gap between the battery pack and the cabinet wall in traditional solutions, resulting in uniform temperature distribution throughout the cabinet and significantly reducing temperature differences between different areas. Simultaneously, the device incorporates a dual-circulation design of external and internal air conditioning, achieving efficient heat exchange between the external and internal environments through the circulation of the first medium between the first and second medium temperature control points. Furthermore, precise airflow guidance through the inlet and outlet channels ensures that the second medium circulates directionally and smoothly within the cabinet. This device significantly improves the heat exchange efficiency between the second medium and the inside of the cabinet through the synergistic effect of dual circulation and precise flow guidance structure. It can quickly respond to heat generation changes during the charging and discharging process of the battery pack, remove excess heat or replenish heat in a timely manner, effectively suppress temperature fluctuations inside the cabinet, ensure temperature stability, and ensure that the battery pack operates within the optimal temperature range. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the medium flow direction from a side view of the temperature regulation device, which only includes the side temperature control cavity, in the embodiments of this application.

[0026] Figure 2 This is a schematic diagram of the medium flow direction from a top-down perspective of a temperature regulation device that includes only a side temperature control cavity in the embodiments of this application.

[0027] Figure 3 This is a schematic diagram of the medium flow direction of the temperature regulation device, which includes a side temperature control cavity and a rear temperature control cavity, in the embodiments of this application from a side view.

[0028] Figure 4 This is a schematic diagram of the medium flow direction from a top-down perspective of the temperature regulation device including the side temperature control cavity and the rear temperature control cavity in the embodiments of this application.

[0029] Figure 5 This is a schematic diagram of the overall structure of the air conditioning mechanism arranged in the front door in an embodiment of this application.

[0030] Figure 6 This is an overall schematic diagram of the energy storage cabinet with a front door in the embodiments of this application.

[0031] Figure 7 This is a schematic diagram of the side structure of the temperature regulation device when the air conditioning mechanism is arranged on the front wall of the cabinet in the embodiment of this application.

[0032] Figure 8 for Figure 7 A schematic diagram of the structure along the AA section.

[0033] Figure 9 for Figure 7 A schematic diagram of the structure along the BB cross-section.

[0034] Figure 10 for Figure 7 A schematic diagram of the structure along the CC section.

[0035] Figure 11 This is a schematic diagram of the side structure of the temperature regulation device when the air conditioning mechanism is arranged on the rear wall of the cabinet in the embodiment of this application.

[0036] The specific meanings of the reference numerals in the attached figures:

[0037] 1-Cabinet body; 2-Front door body; 3-Air conditioning mechanism; 4-Battery pack; 5-Rear door body; 6-Baffle plate.

[0038] 101-Return air chamber; 102-Inlet air guide chamber; 102a-First inlet end; 102b-First outlet end; 103-First guide chamber; 103a-First air inlet; 103b-First air inlet outlet; 104-Side temperature control chamber; 1041-Guide component; 105-Support frame; 106-Booth guide channel; 107-Second guide chamber; 107a-First return air inlet; 107b-First return air outlet; 108-Outlet air guide chamber; 108a-Second inlet end; 108b-Second outlet end; 109-Inlet air guide plate; 110-Rear temperature control chamber; 301-Indoor air inlet; 302-Indoor return air inlet.

[0039] 1a - Front wall of cabinet; 1b - Rear wall of cabinet; 1c - Side wall of cabinet; 1d - Top of cabinet; 1e - Bottom of cabinet; 3a - External circulation mechanism; 3b - Internal circulation mechanism; 4a - Front surface of battery pack; 4b - Rear surface of battery pack; 4c - Side surface of battery pack. Detailed Implementation

[0040] The present application will now be further described with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application and should not be construed as limiting the scope of protection of the present application. It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of the present application.

[0041] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the specification of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. The term "multiple" in this application refers to two or more (including two); similarly, "multiple sets" refers to two or more sets (including two sets), and "multiple pieces" refers to two or more pieces (including two pieces).

[0042] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] In this embodiment, the battery packs in the energy storage cabinet are mostly installed inside the cabinet in a manner similar to a push-pull drawer. In this embodiment, the direction in which the force is applied to the battery pack when it is pulled during disassembly is defined as the front of the energy storage cabinet, and the direction in which the force is applied to the battery pack when it is pushed during installation is defined as the rear of the energy storage cabinet. The sides of the energy storage cabinet are located perpendicular to the direction of force applied to the battery pack when it is pushed or pulled. Therefore, in this embodiment, the front wall of the cabinet is the surface of the cabinet that is biased towards the front of the energy storage cabinet. When the front wall of the cabinet has a front door structure, it includes the front door structure. The rear wall of the cabinet is the surface of the cabinet that is biased towards the rear of the energy storage cabinet. When the rear wall of the cabinet has a rear door structure, it includes the rear door structure. The side walls of the cabinet refer to the surfaces of the cabinet that are biased towards the sides of the energy storage cabinet. Similarly, in this embodiment, the front surface of the battery pack is the side in which the force direction of the battery pack is indicated when the battery pack is pulled during disassembly; the rear surface of the battery pack is the side in which the force direction of the battery pack is indicated when the battery pack is pushed during installation; and the side surface of the battery pack is the side perpendicular to the force direction of the battery pack. It should be noted that the directional descriptions such as "front wall," "rear wall," "side wall," "front surface," "rear surface," and "side surface" in this embodiment are all set for the purpose of more clearly explaining the technical solution of this application. In practical applications, these directional descriptions can be adjusted accordingly based on the specific installation and use of the energy storage cabinet and battery pack.

[0045] Example 1:

[0046] Combination Figure 1-4 As shown, this embodiment 1 discloses a temperature regulation device, which is applied inside an energy storage cabinet. It is used to precisely regulate the temperature inside the cabinet 1 of the energy storage cabinet. The temperature regulation device includes an air conditioning mechanism 3, a temperature control cavity, a return air cavity 101, an air inlet channel, and an air outlet channel. The various structures work together to achieve temperature regulation inside the cabinet 1.

[0047] Specifically, such as Figure 5 As shown, the air conditioning mechanism 3 in this embodiment adopts a dual-cycle heat exchange structure, which includes an external circulation mechanism 3a and an internal circulation mechanism 3b. The external circulation mechanism 3a includes a first medium temperature control. When the air conditioning mechanism 3 is working, the air outside the cabinet 1 will circulate through the first medium temperature control driven by a fan inside the external circulation mechanism 3a. The internal circulation mechanism 3b is equipped with a second medium temperature control. When the air conditioning mechanism 3 is working, the second medium located inside the cabinet 1, i.e., the air inside the cabinet 1, will circulate through the second medium temperature control driven by a fan inside the internal circulation mechanism 3b. Furthermore, the first medium temperature control and the second medium temperature control are connected by a sealed pipe, forming a circulation loop containing the first medium. As the first medium flows within the circulation loop, heat can be exchanged between the first medium temperature control and the second medium temperature control.

[0048] In this embodiment 1, when the air conditioning mechanism 3 is in cooling mode, the second medium inside the cabinet 1 circulates through the second medium temperature control unit. This second medium temperature control unit acts as an evaporator, absorbing heat from the second medium passing through the second medium temperature control unit. This heat is transferred from the second medium to the first medium located inside the second medium temperature control unit, where the heat-absorbing first medium vaporizes. Subsequently, the vaporized first medium flows through the circulation loop to the first medium temperature control unit, which acts as a condenser. The vaporized first medium re-liquefies in the first medium temperature control unit and releases heat to the outside air passing through it.

[0049] In this embodiment 1, when the air conditioning mechanism 3 is in heating mode, the first medium temperature control unit acts as an evaporator. The first medium vaporizes and absorbs heat in the first medium temperature control unit. At this time, when the air outside the cabinet 1 passes through the first medium temperature control unit, the heat from the air outside the cabinet 1 is transferred to the first medium inside the first medium temperature control unit. Subsequently, the vaporized first medium flows to the second medium temperature control unit, where it acts as a condenser. The vaporized first medium liquefies and releases heat in the second medium temperature control unit, causing the second medium temperature control unit to heat the second medium passing through it. The heated second medium then flows into the interior of the cabinet 1.

[0050] As a preferred embodiment, in this example 1, the first medium is preferably tetrafluoroethane, and the second medium is preferably conventional air inside the cabinet 1. The temperature control devices for both the first and second media are preferably coil-type heat exchangers. These coil-type heat exchangers ensure rapid and sufficient heat exchange between the first and second media, and between the first medium and the external air of the cabinet 1. Furthermore, the coil-type heat exchanger has a compact structure, occupies little space, and is easy to arrange and install within the energy storage cabinet. Additionally, the heat dissipation area of ​​the coil-type heat exchanger can be increased, or materials with better thermal conductivity can be used, such as adding heat dissipation fins or using materials with good thermal conductivity like copper, to further improve the heat exchange effect.

[0051] In addition, such as Figure 5 As shown, in this embodiment 1, the cabinet circulation mechanism 3b is provided with an internal air inlet 301 and an internal air return outlet 302, which are located on the front wall 1a or the rear wall 1b of the cabinet. Combined with... Figure 1-5As shown in Embodiment 1, the energy storage cabinet 1 has an openable door on either the front wall 1a or the rear wall 1b. In this embodiment, the air conditioning structure is installed on at least one of the front door 2 or the rear door 5. The external circulation mechanism 3a is located on the side of the door facing outwards from the cabinet 1, while the internal circulation mechanism 3b is located on the side of the door facing inwards from the cabinet 1. Therefore, the internal air inlet 301 and internal air return vent 302 of the internal circulation mechanism 3b are also located on the side of the door facing inwards from the cabinet 1. The second medium inside the cabinet 1 enters the internal circulation mechanism 3b through the internal air return vent 302. Driven by the fan inside the internal circulation mechanism 3b, the second medium flows through the second medium temperature control for heat exchange, and then flows into the cabinet 1 from the internal air inlet 301, forming a complete heat exchange cycle inside the cabinet 1.

[0052] In this embodiment 1, the temperature control cavity and the return air cavity 101 are separately arranged inside the cabinet 1 of the energy storage cabinet, and the temperature control cavity and the return air cavity 101 are connected by a guide channel. Figure 1-4 As shown, the energy storage cabinet in this embodiment is equipped with multiple battery packs 4 arranged along the height direction, and the energy storage cabinet is equipped with a support frame 105 for fixing the battery packs 4. Figure 9 As shown. When the battery pack 4 is installed on the support frame 105, the interior of the cabinet 1 can be divided into two chambers using the front surface 4a of the battery pack as the dividing boundary. The chamber between the front surface 4a of the battery pack and the front wall 1a of the cabinet is the first chamber, and the chamber between the front surface 4a of the battery pack and the rear wall 1b of the cabinet is the second chamber. In this embodiment, the first chamber is the return air chamber 101, while the main body of the battery pack 4 is located in the second chamber. The temperature control chamber is arranged in the gap between the battery pack 4 and the cabinet 1 in the second chamber, and this temperature control chamber can fully cover the key heat dissipation area around the battery pack 4.

[0053] Combination Figure 1-4 As shown, in this embodiment 1, the temperature control cavity includes a side temperature control cavity 104 or a rear temperature control cavity 110. The side temperature control cavity 104 is arranged on the side of the cabinet 1, located in the gap between the side wall 1c of the cabinet and the side surface 4c of the battery pack. The rear temperature control cavity 110 is located at the rear of the cabinet 1, located in the gap between the rear wall 1b of the cabinet 1 and the rear surface 4b of the battery pack. The return air cavity 101 is distributed at the front of the cabinet 1, located in the gap between the front wall 1a of the cabinet and the front surface 4a of the battery pack. Through the cooperation of the return air cavity 101 and the temperature control cavity, after the second medium in the temperature control cavity exchanges heat with the battery pack 4, it can be concentrated and converged into the return air cavity 101, and then concentrated and returned to the air conditioning mechanism 3.

[0054] As a preferred embodiment, in this embodiment 1, a baffle is provided between the temperature control cavity and the return air cavity 101, such as... Figure 4As shown, the baffle is made of metal sheet and is fixedly connected to the support frame 105 located between the side temperature control cavity 104 and the return air cavity 101 inside the cabinet 1 by bolts, welding or integral molding. The overall height of the baffle is the same as the height of the support frame 105, and the edges of the baffle are tightly attached to the side wall 1c of the cabinet and the front surface 4a of the battery pack, respectively. Through the cooperation of the baffle and the battery pack 4, the temperature control cavity and the return air cavity 101 can be effectively separated, and the second medium can be ensured to flow only through the preset flow channel to prevent airflow interference between the two. This ensures that the second medium can flow fully through the gap area of ​​the temperature control cavity inside the cabinet 1, avoid temperature dead zones, make the temperature distribution in each area inside the cabinet 1 uniform, and significantly reduce the temperature difference between different areas.

[0055] In this embodiment 1, the air inlet channel is used to connect the air inlet 301 inside the cabinet with the temperature control chamber, and the air outlet channel is used to connect the return air chamber 101 with the return air outlet 302 inside the cabinet. In this embodiment 1, the second medium introduced into the air inlet 301 inside the cabinet is guided to the temperature control chamber through the air inlet channel, and the temperature of the temperature control chamber is regulated by the second medium. The second medium that has participated in the temperature regulation in the return air chamber 101 is guided to the return air outlet 302 inside the cabinet through the air outlet channel.

[0056] In this embodiment 1, the layout of the air inlet and outlet channels changes depending on the different positions of the air conditioning mechanism 3.

[0057] Specifically, in combination Figure 1 , Figure 2 and Figure 5 As shown in Embodiment 1, when the air conditioning mechanism 3 is positioned on the front wall 1a of the energy storage cabinet, the air inlet 301 and return air outlet 302 of the internal circulation mechanism are located on the front wall 1a, and both are distributed on one side biased towards the interior of the cabinet 1. Since the air inlet 301 is located on the front side of the cabinet 1, while the temperature control cavity is biased towards the rear side of the cabinet 1, the two cannot be directly connected. Therefore, the air inlet channel extends from the air inlet 301, and along the flow path leading to the temperature control cavity, accurately guides the second medium flowing out of the internal circulation mechanism 3b to the temperature control cavity, ensuring that the second medium can smoothly enter the temperature control cavity from the air inlet 301 and fully exchange heat with the battery pack 4. The air outlet channel starts from the return air cavity 101 and connects to the return air outlet 302, concentrating and guiding the second medium after heat exchange back to the air conditioning mechanism 3, thereby forming a complete and orderly internal circulation channel. This structural layout allows the second medium to flow more smoothly and efficiently within the cabinet, further enhancing the heat exchange effect.

[0058] Combination Figure 3 , Figure 4 and Figure 5As shown, when the air conditioning unit 3 is positioned on the rear wall 1b of the energy storage cabinet, the air inlet 301 and return air outlet 302 of the internal circulation unit are located on the rear door 5 and biased towards the interior of the cabinet 1. Since both the air inlet 301 and the temperature control chamber are biased towards the rear of the cabinet 1, they can be directly connected. Therefore, the air inlet channel starts from the air inlet 301 and connects directly to the temperature control chamber, allowing the second medium to enter each area of ​​the temperature control chamber quickly and evenly. However, the return air outlet 302 is biased towards the rear of the cabinet 1, and the return air chamber 101 is biased towards the front of the cabinet 1, so they cannot be directly connected. In this case, the air outlet channel extends from the return air chamber 101, following the flow path leading to the rear of the cabinet 1, guiding the second medium in the return air chamber 101 to the return air outlet 302, ensuring that the second medium can return to the air conditioning unit 3 in a timely manner after completing heat exchange, thereby ensuring the stable operation of the internal temperature regulation system.

[0059] As a preferred embodiment, such as Figure 1 and Figure 3 As shown, in this embodiment 1, a flow channel is also provided between the temperature control chamber and the return air chamber 101. This flow channel adopts multiple compartment flow channels 106. Each compartment flow channel 106 is a gap channel with a height range of 5mm-10mm reserved between the upper and lower battery packs after they are installed in place. Each compartment flow channel 106 is arranged in the gap position between adjacent upper and lower battery packs 4 inside the cabinet 1. The second medium located in the temperature control chamber can be guided to the return air chamber 101 through the multiple compartment flow channels 106. The compartment flow channels 106 not only realize the medium connection between the temperature control chamber and the return air chamber 101, but also, during the process of the second medium passing through the compartment flow channels 106, can perform heat exchange and temperature control on the surface of the battery pack 4 in the vertical direction to ensure the overall heat dissipation effect of the battery pack 4.

[0060] The temperature control device in this embodiment 1 combines the dual-circulation design of the air conditioning mechanism 3, which features both external and internal circulation. Through the circulation of the first medium between the first and second medium temperature control points, efficient heat exchange between the external and internal environments is achieved. Simultaneously, precise airflow guidance through the inlet and outlet channels ensures the second medium circulates smoothly and directionally within the cabinet. The temperature control chamber comprehensively covers key heat exchange areas around the battery pack, ensuring uniform heat exchange and maintaining the battery pack at a suitable temperature. This device, through the synergistic effect of dual circulation and precise airflow guidance, significantly improves the heat exchange efficiency between the second medium and the interior of the cabinet 1. It can quickly respond to heat changes during battery charging and discharging. The internal flow channel design of the cabinet 1, combined with the mode-changing function of the air conditioning mechanism 3, can promptly remove excess heat or replenish heat under different operating conditions, effectively suppressing temperature fluctuations within the cabinet 1, ensuring temperature stability, and guaranteeing the battery pack operates within its optimal temperature range.

[0061] Example 2:

[0062] like Figure 5-10 As shown, this embodiment 2 discloses a temperature regulating device, which is used for internal temperature control of an energy storage cabinet. The energy storage cabinet has a front door 2 only on the front wall 1a of the cabinet body, and correspondingly, an air conditioning mechanism 3 is arranged on the front door 2. Figure 5 As shown, the air conditioning unit 3 also adopts a dual-circulation heat exchange structure, which includes an external circulation mechanism 3a and an internal circulation mechanism 3b. The external circulation mechanism 3a is arranged on the side of the front door 2 that is biased towards the outside of the cabinet 1, while the internal circulation mechanism 3b is arranged on the side of the front door 2 that is biased towards the inside of the cabinet 1. The internal air inlet 301 and the internal air return vent 302 of the internal circulation mechanism 3b are also distributed on the side of the front door 2 that is biased towards the inside of the cabinet 1. The internal air inlet 301 and the internal air return vent 302 are distributed vertically on the front door 2, with the internal air inlet 301 located at the top and the internal air return vent 302 located at the bottom.

[0063] In this embodiment 2, the temperature control chamber and the return air chamber 101 are separately arranged inside the cabinet 1 of the energy storage cabinet, and the temperature control chamber and the return air chamber 101 are connected by a guide channel. Similar to embodiment 1, in this embodiment 2, the front surface 4a of the battery pack is used as the dividing boundary to divide the interior of the cabinet 1 into two chambers, wherein the chamber between the front surface 4a of the battery pack and the front wall 1a of the cabinet is the first chamber, and the chamber between the front surface 4a of the battery pack and the rear wall 1b of the cabinet is the second chamber.

[0064] like Figure 7-10 As shown, in this embodiment 2, the first chamber is a return air chamber 101, which is located at the front of the cabinet 1, in the gap between the front wall 1a of the cabinet and the front surface 4a of the battery pack. The temperature control chamber consists of two opposing side temperature control chambers 104, which are arranged on both sides of the cabinet 1, in the gap between the side surface 4c of the battery pack and the side wall 1c of the cabinet. The side temperature control chambers 104 are arranged to extend through the height of the cabinet 1, covering all the side surface areas of the battery pack 4. The second medium entering through the side temperature control chambers 104 can exchange heat with the side surface 4c of the battery pack, and also enters the preset guide channel through the gap between the side surfaces of the upper and lower battery packs 4. In the guide channel, the second medium also exchanges heat with the upper and lower surfaces of the battery pack 4, and finally converges into the return air chamber 101, from which it flows back to the air conditioning mechanism 3.

[0065] like Figure 7As shown, in this embodiment 2, the air inlet channel includes an air inlet guide cavity 102 and a first guide cavity 103. The air inlet guide cavity 102 is used to connect the air inlet 301 inside the cabinet and the first guide cavity 103. The air inlet guide cavity 102 adopts a hollow quadrangular truncated box. The large end of the air inlet guide cavity 102 is provided with a first inlet end 102a that adapts to the outline of the air inlet 301 inside the cabinet. Since the front door 2 has an opening and closing requirement relative to the cabinet 1, the first inlet end 102a is not connected to the air inlet 301 inside the cabinet. When the front door 2 is closed, the first inlet end 102a is close to the outline of the air inlet 301 inside the cabinet. The small end of the air inlet guide cavity 102 is provided with a first outlet end 102b, and the first outlet end 102b can be fixedly connected to the air inlet of the first guide cavity 103 by bolts, welding or snap-fitting. The specific connection method is selected according to the actual assembly requirements.

[0066] Combination Figure 7 and Figure 8 As shown, in this embodiment 2, the first air guiding cavity 103 is used to connect the air inlet guiding cavity 102 and the side temperature control cavity 104. The first air guiding cavity 103 adopts a hollow rectangular box structure, which is arranged on the top surface 1d of the cabinet and in the gap between the battery pack 4 at the top of the cabinet 1. The side surface of the first air guiding cavity 103 is provided with a first air inlet 103a and two first air inlet outlets 103b. The first air inlet 103a is arranged on the side surface of the first air guiding cavity 103 near the top of the return air cavity 101, and the first air inlet 103a is connected to the first outlet end 102b of the air inlet guiding cavity 102. Two first air inlets 103b are symmetrically located on the side surfaces of the side temperature control cavities 104 near the top of the first flow guide cavity 103. Each first air inlet 103b is connected to the corresponding side temperature control cavity 104. The second medium can be diverted to the two side temperature control cavities 104 through the first flow guide cavity 103. Meanwhile, in this embodiment 2, an inclined guide member 1041 is provided at the top of the side temperature control cavity 104, allowing the second medium from the first flow guide cavity 103 to flow smoothly into the side temperature control cavity 104.

[0067] It should be noted that, as Figure 7 As shown, in this embodiment 2, the air outlet duct is located between the return air inlet 302 and the return air cavity 101 inside the cabinet. However, since the return air cavity 101 directly contacts the front door 2, the air outlet duct is the entire return air cavity 101. The return air inlet 302 inside the cabinet is directly connected to the return air cavity 101. The second medium collected in the return air cavity 101 is directly guided to the return air inlet 302 inside the cabinet. After passing through the return air inlet 302, it enters the cabinet circulation mechanism 3b. Driven by the fan inside the cabinet circulation mechanism 3b, the second medium flows through the second medium temperature control for heat exchange, and then flows into the cabinet body 1 from the air inlet 301 inside the cabinet, so that a complete heat exchange cycle is formed inside the cabinet body 1.

[0068] In this embodiment 2, the cooling and heating modes of the air conditioning mechanism 3 can be combined to control the temperature of the battery pack under different operating conditions to ensure that the battery pack is within a suitable temperature range. For example, when the energy storage cabinet is charging and discharging at high power, the battery pack output or input power is high, which will generate a lot of heat. At this time, the internal temperature of the energy storage cabinet is high. The air conditioning mechanism 3 starts the cooling mode. The second medium, which is at high temperature inside the cabinet, enters the cabinet circulation mechanism 3b through the cabinet return air vent 302. At this time, the second medium temperature control device located in the cabinet circulation mechanism 3b acts as an evaporator. When the high-temperature second medium passes through the second medium temperature control device, the heat is absorbed by the second medium temperature control device. The cooled second medium is introduced into the cabinet 1 through the cabinet air inlet 301. At the same time, the first medium that absorbs heat in the second medium temperature control device is vaporized and flows to the first medium temperature control device of the cabinet external circulation mechanism 3a. At this time, the first medium temperature control device acts as a condenser. The first medium is re-condensed into a liquid state in the first medium temperature control device and releases heat to the first medium temperature control device. The cabinet external circulation mechanism 3a circulates the external air to the first medium temperature control device, and the external air carries away the heat and discharges it to the outside.

[0069] After the low-temperature secondary medium is introduced into the air inlet channel, it is diverted through the air inlet guide cavity 102 and the first guide cavity 103, and then enters the side temperature control cavities 104 on both sides. There, it exchanges heat with the battery pack side surface 4c, absorbing the heat generated by the battery pack and lowering its temperature. The heat-absorbing secondary medium then enters the guide channel through the gap between the battery pack side surface 4c and the cabinet side wall 1c. Within the guide channel, it further exchanges heat with the upper and lower surfaces of the battery pack before converging into the return air cavity 101. The secondary medium in the return air cavity 101 enters the cabinet circulation mechanism 3b through the cabinet return air inlet 302, where it again exchanges heat with the secondary medium temperature control, transferring the absorbed heat outwards. It then flows back into the cabinet 1 through the cabinet air inlet 301. Through this circulation process, the heat from the battery pack is continuously removed, maintaining the battery pack within a suitable temperature range.

[0070] When the energy storage cabinet is charging and discharging at low power and the external environment is extremely cold, the internal temperature of the cabinet 1 is lower than the suitable operating temperature of the battery pack due to the influence of the external environment. At this time, the air conditioning mechanism 3 switches to heating mode, and the external circulation mechanism 3a draws in outside air. At this time, the first medium temperature control acts as an evaporator. After the outside air passes through the first medium temperature control for heat exchange, the first medium located at the first medium temperature control is in a gaseous state and is transported to the second medium temperature control of the internal circulation mechanism 3b. At this time, the second medium temperature control acts as a condenser, and the first medium liquefies and releases heat in the second medium temperature control. The second medium with a lower temperature inside the cabinet 1 flows into the internal circulation mechanism 3b through the internal air return vent 302. The second medium is heated by the second medium temperature control and the higher-temperature second medium is sent into the air inlet channel through the internal air inlet vent 301. The high-temperature second medium enters the side temperature control cavity 104 and transfers heat to the battery pack, causing the battery pack temperature to rise. After releasing heat, the second medium flows through the guide channel to the return air chamber 101, and then enters the cabinet circulation mechanism 3b through the cabinet return air port 302. After reabsorbing heat through the second medium temperature control, it flows back into the cabinet 1, circulating repeatedly, thereby providing heat to the battery pack and ensuring that the battery pack can be at a suitable working temperature even in low-temperature environments.

[0071] Example 3:

[0072] like Figure 11 As shown, this embodiment 3 discloses a temperature regulating device used for internal temperature control of an energy storage cabinet. The energy storage cabinet has a front door 2 on the front wall 1a and a rear door 5 on the rear wall 1b, with an air conditioning structure arranged on the rear door 5. This air conditioning mechanism 3 also adopts a dual-cycle heat exchange structure, which can be referred to... Figure 5 As shown, it includes an external circulation mechanism 3a and an internal circulation mechanism 3b. The external circulation mechanism 3a is located on the side of the rear door 5 that is biased towards the outside of the cabinet 1, while the internal circulation mechanism 3b is located on the side of the rear door 5 that is biased towards the inside of the cabinet 1. The internal air inlet 301 and internal air return vent 302 of the internal circulation mechanism 3b are also distributed on the side of the rear door 5 that is biased towards the inside of the cabinet 1. The internal air inlet 301 and internal air return vent 302 are vertically distributed on the rear door 5, but not vertically. Figure 5 The difference is that in this embodiment, the air inlet 301 inside the cabinet is located at the bottom, and the air return vent 302 inside the cabinet is located at the top.

[0073] In this embodiment 3, the temperature control cavity and the return air cavity 101 are separately arranged inside the cabinet 1 of the energy storage cabinet, and the temperature control cavity and the return air cavity 101 are connected by a guide channel. Using the front surface 4a of the battery pack as the dividing line, the interior of the cabinet 1 can be divided into two chambers. The chamber between the front surface 4a of the battery pack and the front wall 1a of the cabinet is the first chamber, which is the return air cavity 101. The chamber between the front surface 4a of the battery pack and the rear wall 1b of the cabinet is the second chamber, and the temperature control cavity is located in the second chamber. Unlike embodiment 2, in this embodiment 3, the temperature control cavity consists of two oppositely arranged side temperature control cavities 104 and a rear temperature control cavity 110, as shown below. Figure 11 As shown, two side temperature control cavities 104 are arranged on both sides of the cabinet 1, and the side temperature control cavities 104 are located in the gap between the side surface 4c of the battery pack and the side wall 1c of the cabinet. The side temperature control cavities 104 are arranged through the height direction of the cabinet 1, covering the side surface area of ​​all battery packs 4. The rear temperature control cavity 110 is distributed at the rear of the cabinet 1, and the rear temperature control cavity 110 is located in the gap between the rear wall 1b of the cabinet 1 and the rear surface 4b of the battery pack inside the cabinet 1. The rear temperature control cavity 110 extends along the height direction of the cabinet 1 and covers the rear surface of all battery packs 4. The rear temperature control cavity 110 and the side temperature control cavities 104 are interconnected. The side temperature control cavity 104 and the rear temperature control cavity 110 can cover all the peripheral surfaces of the battery pack 4. The second medium located in the side temperature control cavity 104 and the rear temperature control cavity 110 can exchange heat with the side surface 4c and the rear surface 4b of the battery pack. On the other hand, it enters the preset flow channel through the gap between the upper and lower side surfaces 4c and the rear surface 4b of the battery pack. In the flow channel, the second medium exchanges heat with the upper and lower surfaces of the battery pack 4. Finally, it is concentrated and converged into the return air cavity 101, and then concentrated and returned to the air conditioning mechanism 3.

[0074] In this embodiment 3, the air inlet channel is arranged between the air inlet 301 inside the cabinet and the rear temperature control cavity 110. Since the air inlet 301 inside the cabinet and the rear temperature control cavity 110 are directly connected, the air inlet channel is actually the entire rear temperature control cavity 110. The second medium introduced through the air inlet 301 inside the cabinet flows directly to the rear temperature control cavity 110 and spreads to the side temperature control cavity 104 connected to the rear temperature control cavity 110.

[0075] As a preferred embodiment, such as Figure 11As shown in this embodiment 3, an air inlet guide plate 109 is provided at the air inlet 301 inside the cabinet. The air inlet guide plate 109 is formed by bending sheet metal to create a semi-open structure. The air inlet guide plate 109 is fixed to the rear door 5 where the air inlet 301 inside the cabinet is located. An air guide opening is formed between the air inlet guide plate 109 and the air inlet 301 inside the cabinet, pointing towards the bottom 1e of the cabinet. The cross-section of the air guide opening increases from top to bottom. The air inlet guide plate 109 can guide the second medium flowing out of the air inlet 301 inside the cabinet towards the bottom 1e of the cabinet. Based on this structure, the newly introduced second medium will first accumulate in the bottom 1e space of the cabinet, and then gradually spread from the bottom 1e of the cabinet to the top. The second medium that has already participated in the heat exchange of the battery pack 4 is squeezed to the top 1d space of the cabinet and flows back to the internal circulation mechanism 3b of the cabinet through the air outlet channel located at the top 1d of the cabinet. This layout can ensure that the second medium flowing out of the air inlet 301 of the cabinet fully flows through the gap area of ​​the temperature control cavity inside the cabinet 1, eliminates temperature dead zones, makes the temperature distribution in each area inside the cabinet 1 uniform, and reduces the temperature difference between different areas.

[0076] like Figure 11 As shown, in this embodiment 3, the air outlet duct includes an air outlet guide cavity 108 and a second guide cavity 107. The air outlet guide cavity 108 is used to connect the second guide cavity 107 and the cabinet return air vent 302. The air outlet guide cavity 108 adopts a hollow box structure and is fixed to the rear door 5 located on the rear wall 1b of the cabinet. The top of the air outlet guide cavity 108 is provided with a second inlet end 108a, which is used to connect to the second guide cavity 107. The second medium from the air outlet guide cavity 108 can be received through the second inlet end 108a. Furthermore, a second outlet end 108b adapted to the contour of the cabinet return air vent 302 is provided on the side surface of the air outlet guide cavity 108 near its lower part. The second outlet end 108b is connected to the cabinet return air vent 302. It should be noted that in this embodiment 3, since the cabinet 1 has an openable rear door 5 on the rear wall 1b, and the air outlet guide cavity 108 is fixed on the rear door 5, in order to avoid affecting the opening and closing function of the rear door 5, the second inlet end 108a is not connected to the second guide cavity 107. When the second inlet end 108a is opened at the top of the air outlet guide cavity 108, it is only necessary to ensure that after the rear door 5 is closed, the top of the second inlet end 108a is directly opposite the return air outlet of the second guide cavity 107, and at the same time ensure that the second inlet end 108a is close to the outline of the return air outlet in the second guide cavity 107.

[0077] In this embodiment 3, the second guide cavity 107 is used to connect the return air cavity 101 and the outlet air guide cavity 108. For example... Figure 11As shown, the second air guiding cavity 107 preferably adopts a hollow rectangular box structure, which is arranged at the gap between the top surface 1d of the cabinet and the battery pack 4 located at the top of the cabinet 1. The side surface of the second air guiding cavity 107 is respectively provided with a first return air inlet 107a and a first return air outlet 107b. The first return air inlet 107a is arranged on the side surface of the second air guiding cavity 107 near the top of the return air cavity 101 and is connected to the return air cavity 101. The first return air outlet 107b is arranged on the side surface of the second air guiding cavity 107 near the top of the rear temperature control cavity 110 and is directly opposite the second inlet end 108a of the air outlet guiding cavity 108.

[0078] As a preferred embodiment, in this embodiment 3, a flow channel is also provided between the temperature control cavity and the return air cavity 101. The flow channel also adopts multiple compartment flow channels 106, and the compartment flow channels 106 are arranged in the gap between adjacent battery packs 4 inside the cabinet 1. Each compartment flow channel 106 will receive the second medium from the rear temperature control cavity 110 and the side temperature control cavity 104, and then flow to the return air cavity 101.

[0079] In this embodiment 3, the air conditioning mechanism 3 also combines cooling and heating modes to control the temperature of the battery pack 4. During high-power charging and discharging of the energy storage cabinet, the battery pack generates a lot of heat, and the temperature inside the cabinet rises. The air conditioning mechanism 3 then activates the cooling mode. The high-temperature second medium inside the cabinet enters the cabinet circulation mechanism 3b through the cabinet return air vent 302. The second medium temperature control acts as an evaporator to absorb its heat, cooling the second medium before it is introduced into the cabinet body 1 through the cabinet air inlet 301. At the same time, the first medium vaporizes at the second medium temperature control and flows to the first medium temperature control at the cabinet external circulation mechanism 3a. The first medium temperature control acts as a condenser to re-condense the first medium into a liquid state and release heat. The cabinet external circulation mechanism 3a guides external air to the first medium temperature control to carry away the heat and discharge it to the outside. During this stage, the low-temperature second medium is diverted through the air inlet channel into the side temperature control cavity 104 and the rear temperature control cavity 110, where it exchanges heat with the side surface 4c and the rear surface of the battery pack, absorbing heat and cooling the battery pack. After absorbing heat, the second medium enters the flow channel through the gap between the battery packs, and after further heat exchange with the upper and lower surfaces of the battery pack, it flows into the return air cavity 101, and then enters the cabinet circulation mechanism 3b through the cabinet return air vent 302 for heat exchange again. This cycle continuously removes heat from the battery pack, maintaining it within a suitable temperature range.

[0080] When the energy storage cabinet is charging and discharging at low power and the outside environment is extremely cold, the internal temperature of the cabinet 1 is lower than the suitable operating temperature of the battery pack, and the air conditioning mechanism 3 switches to heating mode. The external circulation mechanism 3a draws in outside air. The first medium temperature control acts as an evaporator. After heat exchange with the outside air, the first medium is transported in a gaseous state to the second medium temperature control of the internal circulation mechanism 3b. The second medium temperature control acts as a condenser, causing the first medium to liquefy and release heat. The low-temperature second medium inside the cabinet flows into the internal circulation mechanism 3b through the internal return air vent 302. After being heated by the second medium temperature control, it is sent into the air intake channel through the internal air inlet 301. The high-temperature second medium enters the side temperature control cavity 104 and the rear temperature control cavity 110, transferring heat to the battery pack and raising its temperature. After releasing heat, the second medium flows through the guide channel to the return air cavity 101, and then enters the internal circulation mechanism 3b through the internal return air vent 302 to reabsorb heat before flowing back into the cabinet 1. This cycle continues to provide heat to the battery pack, ensuring that it operates at a suitable temperature in low-temperature environments.

[0081] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A temperature adjusting device for adjusting the temperature inside a cabinet body of an energy storage cabinet, characterized in that, The temperature adjusting device comprises an air conditioning mechanism, a temperature control cavity, a return air cavity, an air inlet flow channel and an air outlet flow channel; The air conditioning mechanism comprises a cabinet outside circulation mechanism and a cabinet inside circulation mechanism, the cabinet outside circulation mechanism comprises a first medium temperature control device, the cabinet inside circulation mechanism comprises a cabinet inside air inlet, a cabinet inside return air outlet and a second medium temperature control device; a first medium in circulation is arranged between the first medium temperature control device and the second medium temperature control device; the first medium exchanges heat with the outside of the cabinet body through the first medium temperature control device; the first medium exchanges heat with the second medium through the second medium temperature control device; the cabinet inside air inlet and the cabinet inside return air outlet are arranged on the front wall or the rear wall of the cabinet body; The temperature control cavity and the return air cavity are arranged in the cabinet body in communication and separation, the return air cavity is distributed in the front part of the cabinet body, and the return air cavity is located in the gap between the front wall of the cabinet body and the front surface of the battery pack in the cabinet body; the temperature control cavity comprises two side temperature control cavities, the two side temperature control cavities are oppositely distributed on the two sides of the cabinet body, and the side temperature control cavities are located in the gap between the side wall of the cabinet body and the side surface of the battery pack in the cabinet body; a flow baffle is arranged between the side temperature control cavities and the return air cavity, the flow baffle is fixedly connected to the support frame between the side temperature control cavities and the return air cavity in the cabinet body, and the flow baffle is used for separating the side temperature control cavities and the return air cavity; The air inlet flow channel is used for guiding the cabinet inside air inlet and the temperature control cavity, and the air outlet flow channel is used for guiding the return air cavity and the cabinet inside return air outlet; the second medium flowing into the cabinet inside air inlet is guided to the temperature control cavity through the air inlet flow channel, the temperature control cavity is adjusted in temperature by the second medium, and the second medium participating in temperature adjustment in the return air cavity is guided to the cabinet inside return air outlet through the air outlet flow channel.

2. The temperature regulating device of claim 1, wherein, The air inlet flow channel comprises an air inlet flow guiding cavity and a first flow guiding cavity, the air inlet flow guiding cavity is used for guiding the cabinet inside air inlet and the first flow guiding cavity, the air inlet flow guiding cavity adopts a hollow quadrangular frustum box body, one end of the air inlet flow guiding cavity is provided with a first inlet end matched with the cabinet inside air inlet, and the first inlet end is abutted to the edge of the cabinet inside air inlet; the other end of the air inlet flow guiding cavity is provided with a first outlet end, and the first outlet end is fixedly connected to the first flow guiding cavity; the first flow guiding cavity is used for guiding the air inlet flow guiding cavity and the side temperature control cavity.

3. The temperature regulating device of claim 2, wherein, The first flow guiding cavity adopts a hollow box body, the first flow guiding cavity is located in the gap between the top surface of the cabinet body and the uppermost battery pack in the cabinet body, the side surface of the first flow guiding cavity comprises a first air inlet and two first air outlets, the first air inlet is arranged on the side surface of the first flow guiding cavity close to the top of the return air cavity, and the first air inlet is communicated with the first outlet end of the air inlet flow guiding cavity; the two first air outlets are oppositely arranged on the two sides of the cabinet body, and the first air outlets are arranged on the side surface of the first flow guiding cavity close to the top of the side temperature control cavity, and the first air outlets are communicated with the side temperature control cavities.

4. The temperature regulating device of claim 3, wherein, The air outlet flow channel is arranged between the air return port in the cabinet and the air return cavity.

5. The temperature regulating device of claim 1, wherein, The temperature control cavity comprises a rear temperature control cavity, which is located at the rear of the cabinet body and at the gap position between the rear wall of the cabinet body and the rear surface of the battery pack in the cabinet body.

6. The temperature regulating device of claim 5, wherein, The air outlet flow channel comprises an air outlet guide cavity and a second guide cavity, the air outlet guide cavity is used to guide the second guide cavity and the air return port in the cabinet, the air outlet guide cavity adopts a hollow box body fixed to the rear wall of the cabinet body, the top of the air outlet guide cavity is provided with a second inlet end, and the second inlet end is communicated with the second guide cavity; the side surface of the lower part of the air outlet guide cavity is provided with a second outlet end matched with the air return port in the cabinet, and the second outlet end is communicated with the air return port in the cabinet; the second guide cavity is used to guide the air return cavity and the air outlet guide cavity.

7. The temperature regulating device of claim 6, wherein, The second guide cavity adopts a hollow box body, the second guide cavity is located at the gap position between the top surface of the cabinet body and the uppermost battery pack in the cabinet body, the side surface of the second guide cavity comprises a first air return inlet and a first air return outlet, the first air return inlet is arranged on the side surface of the second guide cavity close to the top of the air return cavity, and the first air return inlet is communicated with the air return cavity; the first air return outlet is arranged on the side surface of the second guide cavity close to the top of the rear temperature control cavity, and the first air return outlet is opposite to the second inlet end of the air outlet guide cavity.

8. The temperature regulating device of claim 7, wherein, The air inlet flow channel is arranged between the air inlet port in the cabinet and the rear temperature control cavity.

9. The temperature regulating device of claim 1, wherein, A guide flow channel is arranged between the temperature control cavity and the air return cavity, the guide flow channel adopts a plurality of inter-pack guide channels, each inter-pack guide channel is arranged at the gap position between adjacent battery packs in the cabinet body, and the second medium in the temperature control cavity is guided to the air return cavity through the inter-pack guide channel.

10. The temperature regulating device of claim 8, wherein, The air inlet guide plate is arranged between the air inlet port in the cabinet and the air inlet guide plate, and the guide flow port formed between the air inlet guide plate and the air inlet port in the cabinet faces the bottom of the cabinet body, and the cross section of the guide flow port increases from top to bottom.

11. The temperature regulating device of claim 1, wherein, When the air conditioning mechanism is in the refrigeration working condition, the heat of the second medium is exchanged to the first medium in the first medium temperature control device through the second medium temperature control device, and the heat of the first medium is exchanged to the outside of the cabinet body through the first medium temperature control device.

12. The temperature regulating device of claim 1, wherein, When the air conditioning mechanism is in the heating working condition, the heat of the outside of the cabinet body is exchanged to the first medium in the first medium temperature control device through the first medium temperature control device, and the heat of the first medium is exchanged to the second medium through the second medium temperature control device.

13. An energy storage cabinet characterized by, The temperature adjusting device according to any one of claims 1-12 is arranged in the energy storage cabinet.

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