Temperature control cabinet and energy storage cabinet

Abstract

The utility model discloses a kind of temperature control cabinet and energy storage cabinet, wherein energy storage cabinet includes: cabinet, with the cabinet cavity for placing heat dissipation object;Cabinet outer heat exchanger is used to emit heat in the cabinet cavity to the outside of the cabinet, and the cabinet outer heat exchanger is in plate type and is installed on the outside of the cabinet outer side wall along the direction of plate thickness.The cabinet outer heat exchanger for heat dissipation to the outside is separately provided with plate type structure, to be installed on the outside of cabinet outer side wall, to utilize the extension characteristics of cabinet outer side wall, so that the cabinet outer heat exchanger of larger heat exchange area can be installed, so that the heat dissipation power can be well guaranteed to meet the requirement.Moreover, by adopting plate type structure to be installed, it can make the overall structure more compact to avoid being affected by other structures.Therefore, the temperature control cabinet can well solve the problem of poor compactness of energy storage cabinet structure caused by unreasonable installation mode of radiator for heat dissipation to the outside in current temperature control cabinet.

Description

Technical Field

[0001] This utility model relates to the field of equipment cabinets, and more specifically, to a temperature control cabinet, and also to an energy storage cabinet including the above-mentioned temperature control cabinet. Background Technology

[0002] In energy storage cabinets, a temperature control system is required to facilitate the control of the PCS (Power Conversion System) and battery pack temperature. This typically involves an air conditioner. Current technology generally incorporates this air conditioner as a box-like structure, integrating a fan, main circulation pump, plate heat exchanger, external heat exchanger, compressor, and other components. This entire box-like structure is then inserted into the cabinet cavity, which not only occupies excessive cabinet space but also results in poor structural compactness. Furthermore, the external heat exchanger requires a sufficient heat exchange area to ensure effective heat exchange, leading to a relatively large overall box-like structure that occupies a significant portion of the cabinet cavity space.

[0003] In the process of realizing this utility model, the inventor discovered that the prior art has at least the following problems: the energy storage structure is not compact due to the unreasonable installation method of the external heat exchanger for external heat dissipation. Utility Model Content

[0004] In view of this, the first objective of this utility model is to provide a temperature control cabinet that can effectively solve the problem of poor energy storage structure caused by the unreasonable installation method of the radiator for heat dissipation to the outside of the current temperature control cabinet. The second objective of this utility model is to provide an energy storage cabinet including the above-mentioned temperature control cabinet.

[0005] To achieve the first objective mentioned above, this utility model provides the following technical solution:

[0006] A temperature control cabinet, comprising:

[0007] The cabinet has a cavity for housing objects that require heat dissipation;

[0008] An external heat exchanger is used to dissipate heat from the cabinet cavity to the outside of the cabinet. The external heat exchanger is plate-shaped and is installed against the outside of the outer wall of the cabinet along the thickness direction.

[0009] In the aforementioned temperature control cabinet, the external heat exchanger used for external heat dissipation is designed as a separate plate structure, mounted abutting against the outer side of the cabinet's outer wall. This utilizes the extensional properties of the outer wall to allow for the installation of an external heat exchanger with a larger heat exchange area, ensuring that the heat dissipation capacity meets requirements. Furthermore, the plate-type mounting avoids interference from other structures, resulting in a more compact overall structure. Located on the outer side of the cabinet wall, i.e., outside the cabinet cavity, it facilitates the creation of a larger or more regular space within the cabinet cavity to accommodate more battery packs. Therefore, this temperature control cabinet effectively solves the problem of poor energy storage structure compactness caused by the unreasonable installation method of the radiator for external heat dissipation in current temperature control cabinets.

[0010] In some technical solutions, the cabinet is rectangular, and the external heat exchanger is installed on the outer side of the outermost wall with the largest area in the cabinet.

[0011] In some technical solutions, the cabinet is a vertical cabinet with a height dimension greater than at least one horizontal dimension, and the external heat exchanger is provided on the vertical outer wall of the cabinet with the largest area.

[0012] In some technical solutions, at least one external heat exchanger is a vertical heat exchanger, which is installed against the vertical outer wall of the cabinet and is of equal width and aligned.

[0013] In some technical solutions, a compressor and an evaporator are also included, and at least one of the external heat exchangers is a condenser, so that it is located in the same compression refrigeration system as the compressor and the evaporator; the compressor and the evaporator are both located in the cabinet cavity of the cabinet.

[0014] In some technical solutions, a cabinet door is provided on the front side of the cabinet; the external heat exchanger is installed on the rear side of the cabinet.

[0015] In some technical solutions, the cabinet cavity includes an upper cabinet cavity and a lower cabinet cavity arranged vertically; one of the upper cabinet cavity and the lower cabinet cavity is a battery receiving cavity for placing a battery pack, and the other is an equipment cavity for placing a PCS; at least one vertical outer wall of the cabinet is abutted against the side wall portion corresponding to the battery receiving cavity, and an external heat exchanger is provided.

[0016] In some technical solutions, at least one of the vertical outer side walls of the cabinet, corresponding to the side wall portion of the battery housing cavity, is covered with the external heat exchanger.

[0017] In some technical solutions, a ventilation device is also included to direct the external airflow of the cabinet to the external heat exchanger; the ventilation device is arranged vertically alongside the corresponding external heat exchanger to deliver air to the corresponding side vent of the external heat exchanger; the ventilation device is located at the vertical height of the equipment cavity, with the outer side of the ventilation device being the air inlet side and the inner side extending into the equipment cavity; the air outlet of the ventilation device extends into the equipment cavity, and the air outlet side of the ventilation device is offset from the corresponding side cavity wall of the equipment cavity to form a ventilation gap.

[0018] In some technical solutions, a temperature control unit box for insertion into the equipment cavity is also included; the ventilation device is arranged vertically on one side of the temperature control unit box; a dry cooler for heat exchange in the equipment cavity is also provided inside the ventilation device, and the dry cooler and the ventilation device are installed on one side of the temperature control unit box to form an insertion module inserted into the equipment cavity; the temperature control unit box is provided with one or more of the following devices: compressor, evaporator, refrigeration control box, electric heating device, and main circulation pump; the evaporator includes a refrigerant channel and a liquid cooling channel that can exchange heat with each other, the refrigerant channel is connected in series between the compressor and the condenser to form a compression refrigeration system, the liquid cooling channel, the electric heating device, and the main circulation pump are connected in series to form a liquid cooling system, and the liquid cooling system is used to supply temperature-controlled liquid to the battery housing cavity.

[0019] In some technical solutions, the external heat exchanger includes a mounting frame that is attached to the outer wall of the cabinet along the through direction of the frame opening and a heat exchange coil embedded in the frame opening of the mounting frame; an air inlet cavity is formed between the outer walls of the cabinet corresponding to the heat exchange coil.

[0020] In some technical solutions, one side of the mounting frame is provided with an air inlet for guiding air into the air inlet cavity; along the air inlet direction of the air inlet cavity, the heat exchange coil is inclined so as to gradually approach the corresponding outer wall of the cabinet.

[0021] In some technical solutions, the external heat exchanger is open to the side of the cabinet, so that the corresponding outer wall of the cabinet becomes the cavity wall of the air inlet chamber.

[0022] In some technical solutions, the mounting frame has multiple mounting slots on the side near the cabinet to accommodate connecting screws connected to the cabinet.

[0023] To achieve the second objective mentioned above, this utility model also provides an energy storage cabinet, which includes any of the aforementioned temperature-controlled cabinets, comprising a battery pack and a PCS; an external heat exchanger in the temperature-controlled cabinet is used to directly or indirectly dissipate heat from the battery pack and / or the PCS; the battery pack and the PCS are disposed within the cabinet cavity of the temperature-controlled cabinet. Since the aforementioned temperature-controlled cabinet possesses the above-mentioned technical effects, the energy storage cabinet incorporating this temperature-controlled cabinet should also possess corresponding technical effects. Attached Figure Description

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

[0025] Figure 1 A schematic diagram of the rear structure of the energy storage cabinet provided in an embodiment of this utility model;

[0026] Figure 2 This is a schematic diagram of the rear structure of the energy storage cabinet provided in an embodiment of the present utility model;

[0027] Figure 3 This is a schematic diagram of the temperature control device provided in an embodiment of the present utility model;

[0028] Figure 4 A cross-sectional structural schematic diagram of the temperature control device provided in the embodiment of this utility model;

[0029] Figure 5 A schematic diagram of the structure of the external heat exchanger provided in this embodiment of the utility model;

[0030] Figure 6 A schematic diagram of the upper part and transverse cross-sectional structure of the external heat exchanger provided in an embodiment of this utility model;

[0031] Figure 7 A schematic diagram of the structure of the external heat exchanger on the left and right sides and in the vertical section provided in this embodiment of the utility model;

[0032] Figure 8 This is a schematic diagram of the structure of the insertion module provided in an embodiment of the present utility model;

[0033] Figure 9 This is a schematic diagram of the structure of the bottom of the equipment cavity provided in an embodiment of the present utility model;

[0034] Figure 10 A schematic diagram of the vertical side structure of the energy storage cabinet provided in an embodiment of this utility model;

[0035] Figure 11 A schematic diagram of the front internal structure of the energy storage cabinet provided in an embodiment of this utility model;

[0036] Figure 12 A schematic diagram of the external structure of the energy storage cabinet provided in an embodiment of this utility model;

[0037] Figure 13 A schematic diagram of a temperature control system structure for an energy storage cabinet provided in this embodiment of the utility model;

[0038] Figure 14 A schematic diagram of another temperature control system structure for an energy storage cabinet provided in this embodiment of the utility model.

[0039] The following labels are shown in the attached diagram:

[0040] Cabinet 1, PCS 2, Dry Cooler 3, External Heat Exchanger 4, Temperature Control Unit Box 5, Electrical Equipment 6, First Cabinet Door 7, Ventilation Device 8, Battery Pack 9, Second Cabinet Door 10, Evaporator 11, Compressor 12, Refrigeration Control Box 13, Battery Heat Exchanger 14, Electric Heating Device 15, Main Circulation Pump 16.

[0041] Equipment cavity 1-1, battery receiving cavity 1-2, rear side wall 1-3;

[0042] Mounting frame 4-1, heat exchange coil 4-2, mounting slot 4-3.

[0043] The arrows in the diagram indicate the direction of the wind; the ventilation gap is h. Detailed Implementation

[0044] This utility model discloses a temperature control cabinet to effectively solve the problem of poor energy storage structure caused by the unreasonable installation method of the radiator for heat dissipation to the outside of the current temperature control cabinet.

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0046] Please see Figures 1-14 , Figure 1 A schematic diagram of the rear structure of the energy storage cabinet provided in an embodiment of this utility model; Figure 2 This is a schematic diagram of the rear structure of the energy storage cabinet provided in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the temperature control device provided in an embodiment of the present utility model; Figure 4A cross-sectional structural schematic diagram of the temperature control device provided in the embodiment of this utility model; Figure 5 A schematic diagram of the structure of the external heat exchanger provided in this embodiment of the utility model; Figure 6 A schematic diagram of the upper part and transverse cross-sectional structure of the external heat exchanger provided in an embodiment of this utility model; Figure 7 A schematic diagram of the structure of the external heat exchanger on the left and right sides and in the vertical section provided in this embodiment of the utility model; Figure 8 This is a schematic diagram of the structure of the insertion module provided in an embodiment of the present utility model; Figure 9 This is a schematic diagram of the structure of the bottom of the equipment cavity provided in an embodiment of the present utility model; Figure 10 A schematic diagram of the vertical side structure of the energy storage cabinet provided in an embodiment of this utility model; Figure 11 A schematic diagram of the front internal structure of the energy storage cabinet provided in an embodiment of this utility model; Figure 12 A schematic diagram of the external structure of the energy storage cabinet provided in an embodiment of this utility model; Figure 13 A schematic diagram of a temperature control system structure for an energy storage cabinet provided in this embodiment of the utility model; Figure 14 A schematic diagram of another temperature control system structure for an energy storage cabinet provided in this embodiment of the utility model.

[0047] In some embodiments, this embodiment provides a temperature control cabinet, such as an energy storage cabinet. The energy storage cabinet here can be a type of energy storage cabinet. Specifically, the temperature control cabinet mainly includes a cabinet body 1 and an external heat exchanger 4.

[0048] The cabinet 1 has a cavity for housing objects for heat dissipation, namely battery pack 9 and / or PCS2. Battery pack 9 and PCS2 can be placed in the same cavity or in different cavities. For example, cabinet 1 can have a first cavity and a second cavity. The first cavity is mainly used to house PCS2 and other related structures, and can therefore be called equipment cavity 1-1; while the second cavity is mainly used to house the battery pack 9 for energy storage, and can therefore also be called battery housing cavity 1-2. The first cavity has a first door 7, and the second cavity has a second door 10.

[0049] The external heat exchanger 4 is used to dissipate heat from the cabinet cavity to the outside of the cabinet body 1, such as dissipating heat from the first cabinet cavity and / or the second cabinet cavity to the outside of the cabinet body 1. The external heat exchanger 4 can be a condenser in a compression refrigeration system or a liquid-cooled heat exchanger in a liquid cooling system. The liquid-cooled heat exchanger can be a wet-dry heat exchanger or a dry heat exchanger. Of course, multiple modules of the external heat exchanger 4 can be provided simultaneously, serving as both a condenser in a compression refrigeration system and a liquid-cooled heat exchanger in a liquid cooling system.

[0050] The external heat exchanger 4 is plate-shaped and is installed against the outer side wall of the cabinet 1 along the thickness direction, i.e., the side wall of the cabinet 1 away from the cabinet cavity, in a laid-out manner. "Against the thickness direction" means that the thickness direction of the plate is perpendicular to the corresponding outer side wall of the cabinet 1, so that the external heat exchanger 4 and the outer side wall of the cabinet 1 are parallel, i.e., installed against the thickness. It should be noted that the external heat exchanger 4 is plate-shaped, meaning that its dimension in the thickness direction is significantly smaller than its dimensions in the other two extension directions. For example, the dimension in any extension direction is not less than 5 times the dimension in the thickness direction, or the dimension in at least one extension direction is not less than 10 times the dimension in the thickness direction.

[0051] It should be noted that multiple external heat exchangers 4 can be arranged to install on different outer walls of the cabinet 1. For example, external heat exchangers 4 can be installed on all four vertical outer walls. Alternatively, only one external heat exchanger 4 can be installed on one vertical outer wall, such as the rear vertical outer wall.

[0052] In the aforementioned temperature control cabinet, the external heat exchanger 4, used for external heat dissipation, is separately designed as a plate structure and mounted against the outer side of the outer wall of the cabinet 1. This utilizes the extensibility of the outer wall of the cabinet 1 to allow for the installation of an external heat exchanger 4 with a larger heat exchange area, ensuring that the heat dissipation power meets requirements. Furthermore, the plate-type mounting avoids interference from other structures, resulting in a more compact overall structure. Located on the outer side of the outer wall of the cabinet 1, i.e., outside the cabinet cavity, it facilitates the creation of a larger or more regular space within the cabinet cavity to accommodate more battery packs 9. Therefore, this temperature control cabinet effectively solves the problem of poor structural compactness of the energy storage cabinet caused by the unreasonable installation method of the radiator for external heat dissipation in current temperature control cabinets.

[0053] In some embodiments, to better utilize the extended space of the outer wall of the cabinet 1, the cabinet 1 is rectangular in shape, and an external heat exchanger 4 can be installed on the outer side of the outermost wall with the largest area in the cabinet 1. A rectangular shape means that at least two of the three sets of sides have different areas, exhibiting a size distinction, so that at least two sets of sides are rectangular. If the dimensions of the cabinet 1 in all three directions are different, such as the front-to-back dimension being greater than the height dimension, and the height dimension being greater than the left-to-right dimension, then the two outer walls in the left and right directions are the outermost walls with the largest area. In this case, the external heat exchanger 4 can be installed against the left and right sides or one side.

[0054] In some embodiments, to improve the heat exchange efficiency of the external heat exchanger 4, the cabinet 1 can be a vertical cabinet. A vertical cabinet refers to a cabinet 1 whose height dimension is greater than at least one horizontal dimension (the horizontal direction is perpendicular to the height direction, also known as the horizontal direction). Alternatively, the height dimension of the cabinet 1 can be greater than any horizontal dimension. This configuration allows the outermost wall with the largest area on the cabinet 1 to be a vertical outer wall, where the external heat exchanger 4 can be installed. This ensures the external heat exchanger 4 has sufficient surface area, and because it is mounted against the vertical outer wall, it is also vertically positioned, facilitating heat dissipation into the air.

[0055] In some embodiments, in order to make the external heat exchanger 4 have a better heat exchange effect, the external heat exchanger 4 can be fully covered on the corresponding outer wall, or at least the covered area is not less than 80% of the area of ​​the corresponding outer wall.

[0056] In some embodiments, at least one external heat exchanger 4 is a vertical heat exchanger, installed against the vertical outer wall of the cabinet 1 and having the same width as the outer wall. In this case, a certain space can be offset in the height direction to facilitate the installation of a fan and accelerate airflow at the vertical heat exchanger. The heat exchanger is also arranged in a symmetrical and aligned manner in the width direction, meaning that the two edges in the width direction are aligned with the two edges of the outer wall of the cabinet 1. The width direction refers to the direction perpendicular to both the plate thickness direction and the vertical direction. This symmetrical and aligned arrangement in the width direction makes the overall structure more compact.

[0057] In some embodiments, to achieve better temperature control, the temperature control cabinet is generally equipped with a compression refrigeration system. That is, the temperature control cabinet also includes a compressor 12 and an evaporator 11, while one or more external heat exchangers 4 serve as condensers, located within the same compression refrigeration system as the compressor 12 and evaporator 11. The evaporator 11 is used to absorb heat directly or indirectly from the cabinet cavity. In this case, both the compressor 12 and the evaporator 11 can be located within the cabinet cavity of the cabinet body 1. This means that the compressor 12, evaporator 11, and condenser are no longer integrated into a single enclosure, but are instead arranged separately. This makes the overall structure more compact, with the compressor 12 and evaporator 11 both positioned within the cabinet cavity. Because they do not require excessive ventilation clearance, they can be compactly arranged within the cabinet cavity, while the condenser is designed as a plate structure and placed on the outside of the cabinet body 1, resulting in a more compact overall structure.

[0058] In some embodiments, considering that the front of the cabinet 1 is generally provided with a cabinet door, although the external heat exchanger 4 can also be arranged, it increases the load on the cabinet door and is not conducive to opening and closing the cabinet door. In this case, the external heat exchanger 4 can be installed on the rear side of the cabinet 1. On the one hand, it can reduce the noise of the fan corresponding to the external heat exchanger 4 and its impact on the front space; on the other hand, it can make the front side neater and facilitate the side-by-side arrangement of cabinets.

[0059] In some embodiments, the cabinet 1 may include an upper cabinet cavity and a lower cabinet cavity arranged vertically. One of the upper and lower cabinet cavities is a battery receiving cavity 1-2 (second cabinet cavity) for placing the battery pack 9, and the other is an equipment cavity 1-1 (first cabinet cavity) for placing the PCS2, the compressor 12, and the evaporator 11. The equipment cavity can also be used to place electrical devices 6, etc. In this case, at least one of the vertical outer side walls of the cabinet 1 corresponding to the battery receiving cavity 1-2 can be abutted against an external heat exchanger 4. That is, using the side wall of the battery receiving cavity 1-2 as the placement position of the external heat exchanger 4 allows for good offset from the equipment cavity 1-1, facilitating the insertion of corresponding structures into the corresponding side of the equipment cavity 1-1 without causing significant interference.

[0060] Specifically, at least one of the vertical outer side walls of the cabinet 1, corresponding to the side wall of the battery housing cavity 1-2, can be covered with the external heat exchanger 4, which can extend appropriately into the part corresponding to the equipment cavity 1-1.

[0061] As shown in the attached diagram, the upper cabinet cavity is the battery housing cavity 1-2. On the rear outer side wall, the side wall corresponding to the battery housing cavity 1-2 is covered with the external heat exchanger 4. The part corresponding to the equipment cavity 1-1 forms an opening to serve as an insertion port, so as to facilitate the insertion of the temperature control unit connected to the rear external heat exchanger 4.

[0062] In some embodiments, a ventilation device 8 is generally included to direct the airflow from the outside of the cabinet 1 to the external heat exchanger 4. The ventilation device 8 may be multiple fans arranged on the outside of the external heat exchanger 4, but this would result in an excessive increase in size and poor overall regularity.

[0063] Based on this, the ventilation device 8 is arranged vertically alongside the corresponding external heat exchanger 4 to supply air to the corresponding ventilation opening on one side of the external heat exchanger 4. For example, for a vertically arranged external heat exchanger 4, the ventilation device 8 can be arranged along the upper edge, the lower edge, or on both sides or one side in the width direction. However, considering the limited thickness of the external heat exchanger 4, the size requirements for the ventilation device 8 are relatively high. Even if an axial flow fan is used, it is easy for the ventilation device 8 to bulge. On the other hand, using too many fans that are too small will result in a high fan speed to generate sufficient air pressure, but the noise of the fan will increase significantly due to the excessively high speed.

[0064] Based on the above considerations, the ventilation device 8 can be positioned at the vertical height of the equipment cavity 1-1, with its outer side serving as the air inlet and its inner side extending into the equipment cavity 1-1. This allows for the utilization of some space within the equipment to appropriately increase the air outlet area of ​​the ventilation device 8, thereby increasing the airflow entering the external heat exchanger 4. For structural uniformity, the outer surface of the ventilation device 8 can be aligned with the outer surface of the external heat exchanger 4. Furthermore, by extending into the equipment cavity 1-1, a larger fan can be used, effectively reducing fan speed and noise. However, larger fan size does not always equate to lower noise; this is related to material properties and manufacturing processes. Currently, in control cabinets, a larger fan diameter generally results in lower noise, but a larger fan diameter also increases the fan's axial dimension.

[0065] Furthermore, the air outlet of the ventilation device 8 can be extended into the equipment cavity 1-1 to ensure that the air outlet side of the ventilation device 8 is offset from the corresponding side of the cavity wall of the equipment cavity 1-1 to form a ventilation gap h. This improves the air outlet effect and prevents the inner extension of the ventilation device 8 from being blocked, thus preventing air from being discharged. The larger the ventilation gap, the better. The ventilation gap h is generally more than twice the inner extension, thus ensuring sufficient space for airflow guidance.

[0066] Specifically, the ventilation device 8 can be a centrifugal fan, with the rotation axis of the centrifugal fan set perpendicular to the heat exchanger 4 outside the cabinet.

[0067] In some embodiments, to facilitate the installation of the overall structure, a temperature control unit box 5 for insertion into the equipment cavity 1-1 is preferably included. The ventilation device 8 is arranged vertically on one side of the temperature control unit box 5, specifically in the same vertical relationship as the battery housing cavity 1-2 and the equipment cavity 1-1. The ventilation device 8 is located on the side of the temperature control unit box 5 near the battery housing cavity 1-2 to facilitate air supply to the external heat exchanger 4, which is positioned at the same height as the battery housing cavity 1-2. As shown in the attached figures, the external heat exchanger 4 is vertically positioned above the ventilation device 8, and the ventilation device 8 is positioned above the temperature control unit box 5.

[0068] The ventilation device 8 is equipped with a dry cooler 3 for heat exchange in the equipment cavity 1-1. The dry cooler 3 and the ventilation device 8 are installed on one side of the temperature control unit box 5 to form a plug-in module that inserts into the equipment cavity 1-1, allowing the temperature control unit box 5, dry cooler 3, and ventilation device 8 to be inserted into the equipment cavity 1-1 as a single unit, improving installation convenience. The external heat exchanger 4 is not only fixedly connected to the cabinet 1 but also fixed at the ventilation device 8. Considering the large extension area of ​​the external heat exchanger 4, the plug-in module and the external heat exchanger 4 can be installed separately on the cabinet 1.

[0069] It should be noted that the temperature control unit box 5 mainly houses structural components of the temperature control system to facilitate integrated installation. For example, it can accommodate at least a compressor 12.

[0070] Furthermore, considering that the temperature control system mainly includes a compression refrigeration system and a liquid cooling system, and requires a corresponding battery heat exchange device 14 for heat exchange with the battery pack 9 of the energy storage cabinet, the liquid cooling system supplies temperature-controlled liquid to the battery housing cavity 1-2 through the battery heat exchange device 14 to achieve temperature control of the battery housing cavity 1-2. Generally, the temperature of the battery pack 9 is directly controlled to indirectly achieve temperature control of the battery housing cavity 1-2.

[0071] The compression refrigeration system mainly includes a compressor 12, a condenser, and an evaporator 11. The condenser needs to dissipate heat externally; therefore, as described above, at least one external heat exchanger 4 or at least a portion of the structure of an external heat exchanger 4 can be a condenser, as shown in the attached diagram, where the entire external heat exchanger on the rear side of the cabinet 1 is a condenser; alternatively, at least one external heat exchanger 4 can exchange heat with the condenser through a circulating liquid, allowing the condenser to dissipate heat externally through the external heat exchanger 4.

[0072] The evaporator 11 includes a refrigerant channel and a liquid cooling channel capable of exchanging heat with each other. The refrigerant channel connects the compressor 12 and the condenser to form a compression refrigeration system. The battery heat exchange device 14 is connected to the main liquid cooling system via the liquid cooling channel. The battery heat exchange device 14 can be a battery immersion device or a battery liquid cooling plate. The liquid cooling system may further be equipped with an electric heating device 15 to heat the battery pack 9 when necessary.

[0073] The dry cooler 3 can be connected to the main liquid cooling system described above, and can be cooled by the compression refrigeration system and / or by the battery pack 9 (to function as an electric heating device 15). The dry cooler 3 can also be combined with at least one external heat exchanger 4 or at least a portion thereof to form an auxiliary liquid cooling system. Alternatively, the dry cooler 3 can be connected to both the main liquid cooling system and the auxiliary liquid cooling system, and then, via a valve assembly, can be selectively cooled by the compression refrigeration system or the auxiliary liquid cooling system, or simultaneously by both.

[0074] In some embodiments, specifically, the temperature control unit box 5 may be equipped with one or more of the following devices: compressor 12, evaporator 11, refrigeration control box 13, electric heating device 15, and main circulation pump 16. The refrigerant passages of compressor 12 and evaporator 11 are located in the aforementioned compression refrigeration system, and the condenser is either an external heat exchanger 4 or a partial structure of an external heat exchanger 4. The liquid cooling passages of electric heating device 15, main circulation pump 16, and evaporator 11 are located in the main liquid cooling system, and the main circulation pump 16 drives the heat exchange liquid to circulate in the main liquid cooling system. The refrigeration control box 13 mainly controls the compression refrigeration system.

[0075] A schematic diagram of the heat exchange system in some embodiments is shown in the attached figure. Figure 13 As shown, the heat exchange system mainly includes a liquid cooling system and a compression refrigeration system. The condenser of the compression refrigeration system is the aforementioned heat dissipation part, which is plate-shaped and attached to the rear side of the cabinet 1. The evaporator 11 of the compression refrigeration system includes a refrigerant channel and a liquid cooling channel for heat exchange. The refrigerant channel, condenser, and compressor 12 are connected in series to form the compression refrigeration system. The dry cooler 3 is located at the rear air outlet of the PCS2. The heat exchange device for the battery pack 9 is a battery liquid cooling device located at the battery pack 9 to liquid cool the battery pack 9. The heat exchange device for the battery pack 9 and the dry cooler 3 are connected in parallel and connected to both ends of the liquid cooling channel to form a liquid cooling system. The liquid cooling system is equipped with a main circulation pump 16 and an electric heating device 15.

[0076] A schematic diagram of the heat exchange system in some embodiments is shown in the attached figure. Figure 14As shown, the heat exchange system mainly includes a main liquid cooling system, a compression refrigeration system, and an auxiliary liquid cooling system. The evaporator 11 of the compression refrigeration system includes a refrigerant channel and a liquid cooling channel for heat exchange. The refrigerant channel, condenser, and compressor 12 are connected in series to form the compression refrigeration system. The dry cooler 3 is located at the rear air outlet of the PCS2. The battery pack 9 heat exchange device is a battery liquid cooling device located at the battery pack 9 to liquid cool it. The battery pack 9 heat exchange device, main circulation pump 16, and liquid cooling channels are interconnected to form the main liquid cooling system. The liquid cooling heat exchanger, through an auxiliary circulation pump, forms an auxiliary circulation system with the radiator. A liquid supply channel has its inlet connected to the outlet of the main circulation pump 16 and its outlet connected to the inlet of the dry cooler 3. A liquid return channel has its outlet connected to the inlet of the main circulation pump 16 and its inlet connected to the outlet of the dry cooler 3, utilizing the pressure difference between the two ends of the main circulation pump 16 to divert a portion of the fluid into the dry cooler 3. The dry cooler 3 can then dissipate heat either through the radiator or through the compression refrigeration system. The radiator and condenser can be integrated into one external heat exchanger 4, or they can be separate external heat exchangers 4.

[0077] In some embodiments, to facilitate the installation of the external heat exchanger 4 and make the structure more compact, the external heat exchanger 4 may include a mounting frame 4-1 that abuts against the outer wall of the mounting cabinet 1 along the through direction of the frame opening, and a heat exchange coil 4-2 embedded in the frame opening of the mounting frame 4-1. An air inlet cavity may be formed between the heat exchange coil 4-2 and the corresponding outer wall of the cabinet 1. It should be noted that the heat exchange coil 4-2 may be arranged parallel to the corresponding outer wall of the cabinet 1, so that ventilation devices 8 can be arranged along the side edges in each extension direction to provide ventilation.

[0078] In some embodiments, as described above, in order to achieve better ventilation requirements, there are requirements for the installation position of the ventilation device 8, which requires the use of some space in the equipment cavity 1-1. Therefore, it is necessary to provide an air inlet on one side of the mounting frame 4-1 for guiding air into the air inlet cavity. Along the air inlet direction of the air inlet cavity, the heat exchange coil 4-2 is inclined so that it gradually approaches the outer wall of the corresponding cabinet 1, so as to facilitate the control of air pressure and ensure uniform ventilation effect.

[0079] In some embodiments, in order to further save space, the external heat exchanger 4 can be opened to the side of the cabinet 1, so that the corresponding outer wall of the cabinet 1 is the cavity wall of the air inlet chamber.

[0080] As shown in the attached diagram, the mounting frame 4-1 can include two vertical frame edges, one upper frame edge, and one lower frame edge. The two vertical frame edges and the upper frame edge are aligned on both sides in the thickness direction (front-to-back direction) and abut against the rear side of the battery housing cavity 1-3. Specifically, the vertical frame edges are fixedly connected to the two side columns of the battery housing cavity 1-3 one-to-one, and the upper frame edge is aligned with and fixedly connected to the top beam of the battery housing cavity 1-3. The outer side (rear side) of the lower frame edge is aligned with the vertical frame edges, while the inner side is spaced apart from the rear side of the battery housing cavity 1-3 to form the aforementioned air inlet. At this time, the lower frame edge can be fixedly installed onto the insert module.

[0081] A filter screen can be fixed to the outer side of the mounting frame to cover the outside of the heat exchange coil 4-2. The side of the heat exchange coil 4-2 facing the battery housing cavity 1-3 is open to save space.

[0082] In some embodiments, the mounting frame 4-1 may have multiple mounting slots 4-3 on the side near the cabinet 1 to accommodate connecting screws connected to the cabinet 1. This facilitates pre-mounting onto pre-installed screws and then tightening the screws, improving installation convenience. In this case, the aforementioned insert module can be installed onto the cabinet 1 first, and then the aforementioned external heat exchanger 4 can be installed onto the cabinet 1.

[0083] Based on the temperature control cabinet provided in the above embodiments, this utility model also provides an energy storage cabinet. This energy storage cabinet includes any one of the temperature control cabinets described in the above embodiments, and further includes a battery pack 9 and a PCS2. An external heat exchanger 4 in the temperature control cabinet is used to directly or indirectly dissipate heat from the battery pack 9 and / or the PCS2. The battery pack 9 and the PCS2 are disposed within the cabinet cavity of the temperature control cabinet. Since this energy storage cabinet uses the temperature control cabinet described in the above embodiments, the beneficial effects of this energy storage cabinet can be found in the above embodiments.

[0084] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0085] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A temperature-controlled cabinet, characterized in that, include: The cabinet (1) has a cavity for placing heat dissipation objects; The external heat exchanger (4) is used to dissipate the heat in the cabinet cavity to the outside of the cabinet body (1). The external heat exchanger (4) is plate-shaped and is installed on the outside of the outer wall of the cabinet body (1) along the thickness direction.

2. The temperature control cabinet according to claim 1, characterized in that, The cabinet (1) is rectangular, and the outermost wall with the largest area in the cabinet (1) is provided with the external heat exchanger (4).

3. The temperature control cabinet according to claim 1, characterized in that, The cabinet (1) is a vertical cabinet with a height dimension greater than at least one horizontal dimension, and the cabinet external heat exchanger (4) is provided on the vertical outer wall with the largest area on the cabinet (1).

4. The temperature control cabinet according to claim 1, characterized in that, At least one external heat exchanger (4) is a vertical heat exchanger, which is installed against the vertical outer wall of the cabinet (1) and is of equal width and aligned.

5. The temperature control cabinet according to claim 1, characterized in that, It also includes a compressor (12) and an evaporator (11), at least one of the external heat exchangers (4) is a condenser, so that it is located in the same compression refrigeration system as the compressor (12) and the evaporator (11); the compressor (12) and the evaporator (11) are both located in the cabinet cavity of the cabinet (1).

6. The temperature control cabinet according to claim 1, characterized in that, The cabinet (1) has a cabinet door on the front side; the external heat exchanger (4) is installed on the rear side of the cabinet (1).

7. The temperature control cabinet according to claim 6, characterized in that, The cabinet (1) includes an upper cabinet cavity and a lower cabinet cavity arranged vertically; one of the upper cabinet cavity and the lower cabinet cavity is a battery receiving cavity (1-2) for placing a battery pack (9), and the other is an equipment cavity (1-1) for placing a PCS (2); at least one vertical outer wall of the cabinet (1) is abutted against the side wall portion corresponding to the battery receiving cavity (1-2) and the external heat exchanger (4) is provided.

8. The temperature control cabinet according to claim 7, characterized in that, At least one of the vertical outer side walls of the cabinet (1) corresponding to the battery housing cavity (1-2) is covered with the external heat exchanger (4).

9. The temperature control cabinet according to claim 8, characterized in that, It also includes a ventilation device (8) for directing the airflow from the cabinet (1) to the external heat exchanger (4); the ventilation device (8) is arranged vertically alongside the corresponding external heat exchanger (4) to deliver air to the corresponding side vent of the external heat exchanger (4); the ventilation device (8) is located at the vertical height of the equipment cavity (1-1), the outer side of the ventilation device (8) is the air inlet side, and the inner side extends into the equipment cavity (1-1); the air outlet of the ventilation device (8) extends into the equipment cavity (1-1), and the air outlet side of the ventilation device (8) is offset from the corresponding side cavity wall of the equipment cavity (1-1) to form a ventilation gap.

10. The temperature control cabinet according to claim 9, characterized in that, It also includes a temperature control unit box (5) for insertion into the equipment cavity (1-1); the ventilation device (8) is arranged vertically on one side of the temperature control unit box (5); the ventilation device (8) is also provided with a dry cooler (3) for heat exchange in the equipment cavity (1-1), the dry cooler (3) and the ventilation device (8) are installed on one side of the temperature control unit box (5) to form an insertion module inserted into the equipment cavity (1-1); the temperature control unit box (5) is provided with the following devices. One or more: a compressor (12), an evaporator (11), a refrigeration control box (13), an electric heating device (15), and a main circulation pump (16); the evaporator (11) includes a refrigerant channel and a liquid cooling channel that can exchange heat with each other, the refrigerant channel being connected in series between the compressor (12) and the condenser to form a compression refrigeration system, the liquid cooling channel, the electric heating device (15), and the main circulation pump (16) being connected in series to form a liquid cooling system, the liquid cooling system being used to supply temperature-controlled liquid to the battery housing (1-2).

11. The temperature control cabinet according to any one of claims 1-10, characterized in that, The external heat exchanger (4) includes an installation frame (4-1) that is attached to the outer wall of the cabinet (1) along the through direction of the frame opening and a heat exchange coil (4-2) embedded in the frame opening of the installation frame (4-1); an air inlet cavity is formed between the outer wall of the cabinet (1) corresponding to the heat exchange coil (4-2).

12. The temperature control cabinet according to claim 11, characterized in that, The mounting frame (4-1) has an air inlet on one side for guiding air into the air inlet cavity; the heat exchange coil (4-2) is inclined along the air inlet direction of the air inlet cavity so that it gradually approaches the outer wall of the corresponding cabinet (1).

13. The temperature control cabinet according to claim 12, characterized in that, The external heat exchanger (4) is open on the side facing the cabinet (1) so that the corresponding outer wall of the cabinet (1) is the cavity wall of the air inlet chamber.

14. The temperature control cabinet according to claim 13, characterized in that, The mounting frame (4-1) has multiple mounting slots (4-3) on the side near the cabinet (1) to accommodate the connecting screws connected to the cabinet (1).

15. An energy storage cabinet, comprising a battery pack (9) and PCS (2), characterized in that, It also includes a temperature control cabinet as described in any one of claims 1-14; the external heat exchanger (4) in the temperature control cabinet is used to directly or indirectly dissipate heat from the battery pack (9) and / or the PCS (2); the battery pack (9) and the PCS (2) are disposed in the cabinet cavity of the temperature control cabinet.

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