Energy storage cabinet with air duct structure

Abstract

The utility model belongs to the technical field of energy storage cabinet manufacturing, concretely relates to an energy storage cabinet with air duct structure, including cabinet main body and refrigerator, the refrigerator is embedded in cabinet main body, is used for the heat dissipation of multiple battery modules on cabinet main body, the cabinet main body is provided with air supply port and return air inlet, the refrigerator is provided with air outlet end and air inlet end, the air outlet end communicates air supply port, the air inlet end communicates return air inlet, wherein, the lateral part and the middle part of cabinet main body are provided with first air duct and second air duct respectively, first air duct and second air duct all communicate air supply port, first air duct and second air duct all communicate each battery module, and one side of the battery module of cabinet main body is provided with suction fan, the utility model improves air duct structure, improves the problem that the uneven temperature distribution exists in the existing structure.

Description

Technical Field

[0001] This utility model belongs to the technical field of energy storage cabinet manufacturing, specifically relating to an energy storage cabinet with an air duct structure. Background Technology

[0002] Today, lithium-ion batteries, as a new type of rechargeable battery, have advantages such as high energy density and power density, high operating voltage, light weight, small size, long cycle life, good safety, and environmental friendliness. They have broad application prospects in portable electrical appliances, power tools, large-scale energy storage, and electric transportation power sources.

[0003] When lithium-ion batteries are used as a medium for grid energy storage, it is generally necessary to first assemble individual battery cells into battery modules, and then fix the battery modules on a support or cabinet in a regular arrangement. These multiple supports or cabinets are arranged in a modular space within a fixed box.

[0004] In the process of realizing this utility model, the inventors discovered that the prior art has at least the following problems:

[0005] The existing structure only uses a fan for heat dissipation, which results in uneven temperature distribution. Utility Model Content

[0006] The purpose of this utility model is to provide an air duct structure for an energy storage cabinet to address the shortcomings of existing technologies, thereby improving the problem of uneven temperature distribution in existing structures.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An air duct structure for an energy storage cabinet includes a cabinet body and a cooler. The cooler is embedded in the cabinet body and is used to dissipate heat from multiple battery modules on the cabinet body. The cabinet body is provided with an air supply port and an air return port. The cooler is provided with an air outlet and an air inlet. The air outlet is connected to the air supply port, and the air inlet is connected to the air return port. A first air duct and a second air duct are respectively provided on the side and the middle of the cabinet body. Both the first air duct and the second air duct are connected to the air supply port and to each battery module. An exhaust fan is provided on the side of the cabinet body corresponding to the battery module.

[0009] In some possible implementations, there are two first air ducts, which are respectively arranged on both sides of the cabinet body in the width direction, and a space for accommodating the battery module is formed between the first air duct and the second air duct.

[0010] In some possible implementations, both the first air duct and the second air duct extend from the top of the cabinet body to the bottom of the cabinet body.

[0011] In some possible implementations, both the first air duct and the second air duct extend along the length of the cabinet body.

[0012] In some possible implementations, a top air duct is provided on the top of the cabinet body, one end of the top air duct is connected to the air outlet, and the other end of the top air duct is connected to the first air duct and the second air duct.

[0013] In some possible implementations, the cabinet body is further provided with multiple partitions that divide the cabinet body into multiple areas for accommodating battery modules, and each area is provided with the exhaust fan.

[0014] In some possible implementations, a channel is provided between the cooler and the battery module, the channel connecting the air inlet of the cooler, and the return air outlet is located on the side of the cabinet body near the channel.

[0015] In some possible implementations, there are multiple return air vents, which are arranged at intervals along the channel.

[0016] In some possible implementations, the cabinet body is provided with a cabinet door, and the cabinet door is provided with heat dissipation holes.

[0017] In some possible implementations, the cooler is an air conditioner.

[0018] One of the above technical solutions has the following beneficial effects:

[0019] This invention optimizes the air duct structure by designing a first air duct and a second air duct on the side and center of the cabinet body, respectively. The first and second air ducts are connected to the air outlet of the cabinet body, which in turn connects to the air outlet of the cooler. This allows the cold air generated by the cooler to be distributed to the sides and center of the cabinet body through the first and second air ducts. The cold air is then drawn out by the suction fans in front of each battery module. The suction force generated by the suction fans allows the cold air to enter each battery module, exchanging heat from the surface of the battery cells and controlling the temperature inside the energy storage cabinet. This improves the problem of uneven temperature distribution in existing structures and helps to improve the lifespan and performance of the battery cells. At the same time, some of the cold air passes through the return air vent of the cabinet body and the air inlet of the cooler, and is drawn into the cooler's internal unit for circulation, which helps to improve the heat dissipation uniformity of the cabinet body. Attached Figure Description

[0020] The features, advantages and technical effects of exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0021] Figure 1 This is a front structural diagram of the present invention.

[0022] Figure 2 This is a top view of the present invention.

[0023] Figure 3 This is a schematic diagram of the air duct of this utility model.

[0024] Figure 4 This is a side view of the present invention.

[0025] The reference numerals in the attached figures are explained as follows:

[0026] 1- Cabinet body;

[0027] 2-Refrigerator;

[0028] 3-Battery module;

[0029] 4-Air outlet;

[0030] 5-Return air vent;

[0031] 7-First air duct;

[0032] 8-Second air duct;

[0033] 9-Exhaust fan;

[0034] 10-Top air duct;

[0035] 11-channel;

[0036] 12 - Cabinet doors;

[0037] X - Length direction;

[0038] Y-width direction;

[0039] Z-Height Direction. Detailed Implementation

[0040] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0041] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] The present invention will be further described in detail below with reference to the accompanying drawings, but this is not intended to limit the present invention.

[0044] Example 1

[0045] Because the existing structure only uses a fan for heat dissipation, there is a problem of uneven temperature distribution.

[0046] like Figures 1-4 As shown, the air duct structure of the energy storage cabinet of this utility model includes a cabinet body 1 and a cooler 2. The cooler 2 is embedded in the cabinet body 1 and is used to dissipate heat from multiple battery modules 3 on the cabinet body 1. The cabinet body 1 is provided with an air supply port 4 and an air return port 5. The cooler 2 is provided with an air outlet and an air inlet. The air outlet is connected to the air supply port 4 and the air inlet is connected to the air return port 5. The side and middle of the cabinet body 1 are respectively provided with a first air duct 7 and a second air duct 8. Both the first air duct 7 and the second air duct 8 are connected to the air supply port 4 and both the first air duct 7 and the second air duct 8 are connected to each battery module 3. An exhaust fan 9 is provided on the side of the cabinet body 1 corresponding to the battery module 3. This utility model optimizes the air duct structure by designing a first air duct 7 and a second air duct 8 on the side and middle of the cabinet body 1, respectively. The first air duct 7 and the second air duct 8 are connected to the air outlet 4 of the cabinet body 1, which in turn is connected to the air outlet of the cooler 2. This allows the cold air generated by the cooler 2 to be carried to the side and middle of the cabinet body 1. In other words, the cold air from the cooler 2 is distributed to the sides and middle of the cabinet body 1 through the first air duct 7 and the second air duct 8, and then drawn out by the suction fan 9 in front of each battery module 3. The suction force generated by the suction fan 9 allows the cold air to enter each battery module 3, which can exchange the heat on the surface of the battery cells inside the battery module 3, thereby controlling the temperature inside the energy storage cabinet and improving the problem of uneven temperature distribution in the existing structure. This helps to improve the service life and performance of the battery cells. At the same time, some of the cold air passes through the return air inlet 5 of the cabinet body 1 and the air inlet of the cooler 2, and is drawn into the internal unit of the cooler 2 for circulation, which helps to improve the heat dissipation uniformity of the cabinet body 1.

[0047] In the air duct structure of the energy storage cabinet according to this utility model, there are two first air ducts 7, which are respectively arranged on both sides of the cabinet body 1 in the width direction Y. The space between the first air ducts 7 and the second air duct 8 is used to accommodate the battery modules 3. Specifically, the sides of the cabinet body 1 corresponding to both sides in the width direction Y are designed with first air ducts 7, that is, the cabinet body 1 has two first air ducts 7 and a second air duct 8 in the middle, for a total of three air ducts. Compared with the existing structure, cold air can dissipate heat from both sides of multiple battery modules 3 through the three air ducts, which helps to improve the problem of uneven temperature distribution in the existing structure. Among them, the space between the first air ducts 7 and the second air duct 8 is formed for multiple battery modules 3 to be placed vertically. At the same time, the first air ducts 7 and the second air duct 8 extend from the top of the cabinet body 1 to the bottom of the cabinet body 1, which can dissipate heat from each vertically arranged battery module 3.

[0048] In the air duct structure of the energy storage cabinet according to this utility model, both the first air duct 7 and the second air duct 8 extend along the length direction X of the cabinet body 1. Specifically, the battery module 3 adopts a cuboid structure, and the battery module 3 is inserted into the cabinet body 1 along the length direction X. The insertion direction of the battery module 3 corresponds to the length direction X of the cabinet body 1, and also corresponds to the length direction of the battery module 3. That is, both the first air duct 7 and the second air duct 8 extend along the length direction X of the cabinet body 1, and can match the length of the battery module 3, which helps to improve the heat dissipation uniformity of the battery module 3.

[0049] In the air duct structure of the energy storage cabinet according to this utility model, the cabinet body 1 is also provided with multiple partitions, which divide the cabinet body 1 into multiple areas for accommodating battery modules 3, and each area is provided with an exhaust fan 9. Specifically, two adjacent layers of battery modules 3 can be separated by partitions, which helps to improve the stability between the battery modules 3 and the cabinet body 1 and prevents the battery modules 3 from shifting or shaking within the cabinet body 1. The partitions can be designed with heat dissipation holes to help improve the heat dissipation effect between two adjacent layers of battery modules 3.

[0050] In the air duct structure of the energy storage cabinet according to this utility model, a channel 11 is provided between the cooler 3 and the battery module 3, which helps to increase the air intake. The channel 11 connects to the air inlet of the cooler 2, which facilitates the cooler 2 to draw in and circulate. The return air port 5 is located on the side of the cabinet body 1 close to the channel 11. There are multiple return air ports 5, which are arranged at intervals along the channel 11. The channel 11 extends along the height Z direction of the cabinet body 1, so that the cooler 2 can draw in cold air from various positions in the height Z direction of the cabinet body 1, which helps to improve the internal circulation effect of the cooler 2 and avoid uneven temperature in some parts of the cabinet body 1.

[0051] In the air duct structure of the energy storage cabinet according to this utility model, the cooler 2 is preferably an air conditioner. The components of the air conditioner include a compressor, a condenser, an evaporator, a one-way valve capillary tube assembly, a four-way valve, etc. The working principle is the same as that of a single-cooling air conditioner. The refrigerant is Freon. The characteristic of Freon is that it releases a large amount of heat when changing from a gaseous state to a liquid state, and absorbs a large amount of heat when changing from a liquid state to a gaseous state. Through circulation, compression, condensation, throttling, and evaporation are completed. The steps include: the low-temperature, low-pressure gas is compressed and heated, then liquefied by heat dissipation through the condenser, and then its pressure is reduced by throttling before absorbing heat and evaporating in the evaporator to achieve cooling.

[0052] The working principle of this utility model is as follows:

[0053] This utility model optimizes the air duct structure by designing a first air duct 7 and a second air duct 8 on the side and middle of the cabinet body 1, respectively. The first air duct 7 and the second air duct 8 are connected to the air outlet 4 of the cabinet body 1, which in turn is connected to the air outlet of the cooler 2. This allows the cold air generated by the cooler 2 to be carried to the side and middle of the cabinet body 1. In other words, the cold air from the cooler 2 is distributed to the sides and middle of the cabinet body 1 through the first air duct 7 and the second air duct 8, and then drawn out by the suction fan 9 in front of each battery module 3. The suction force generated by the suction fan 9 allows the cold air to enter each battery module 3, which can exchange the heat on the surface of the battery cells inside the battery module 3, thereby controlling the temperature inside the energy storage cabinet and improving the problem of uneven temperature distribution in the existing structure. This helps to improve the service life and performance of the battery cells. At the same time, some of the cold air passes through the return air inlet 5 of the cabinet body 1 and the air inlet of the cooler 2, and is drawn into the internal unit of the cooler 2 for circulation, which helps to improve the heat dissipation uniformity of the cabinet body 1.

[0054] Example 2

[0055] Unlike Embodiment 1, the cabinet body 1 in this embodiment has a top air duct 10 at its top. One end of the top air duct 10 is connected to the air outlet 4, and the other end is connected to the first air duct 7 and the second air duct 8. Specifically, the top air duct 10 can evenly distribute the cold air from the air outlet 4 into the first air duct 7 and the second air duct 8, and the size of the top air duct 10 is slightly larger than the size of the first air duct 7 and the second air duct 8.

[0056] The other structures are the same as in Embodiment 1, and will not be described again here.

[0057] Example 3

[0058] Unlike Embodiment 1, the cabinet body 1 in this embodiment is provided with a cabinet door 12, which serves to close the cabinet body 1. The cabinet door 12 is provided with heat dissipation holes, so that hot air can be drawn out from the exhaust fan 9 in front of each battery module 3 and discharged to the outside through the heat dissipation holes of the cabinet door 12.

[0059] The other structures are the same as in Embodiment 1, and will not be described again here.

[0060] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this utility model are within the protection scope of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. An energy storage cabinet with a duct structure, characterized in that, It includes a cabinet body (1) and a cooler (2), wherein the cooler (2) is embedded in the cabinet body (1) and is used to dissipate heat from multiple battery modules (3) on the cabinet body (1); The cabinet body (1) is provided with an air supply vent (4) and an air return vent (5); The cooler (2) is provided with an air outlet and an air inlet. The air outlet is connected to the air supply port (4), and the air inlet is connected to the air return port (5). The cabinet body (1) is provided with a first air duct (7) and a second air duct (8) on its side and middle, respectively. The first air duct (7) and the second air duct (8) are both connected to the air outlet (4). The first air duct (7) and the second air duct (8) are both connected to each battery module (3). The cabinet body (1) is provided with an exhaust fan (9) on one side corresponding to the battery module (3). There are two first air ducts (7), and the two first air ducts (7) are respectively arranged on both sides of the width direction of the cabinet body (1). The space between the first air duct (7) and the second air duct (8) is used to accommodate the battery module (3). Both the first air duct (7) and the second air duct (8) extend from the top of the cabinet body (1) to the bottom of the cabinet body (1); Both the first air duct (7) and the second air duct (8) extend along the length of the cabinet body (1); The top of the cabinet body (1) is provided with a top air duct (10), one end of the top air duct (10) is connected to the air outlet (4), and the other end of the top air duct (10) is connected to the first air duct (7) and the second air duct (8); The cabinet body (1) is also provided with multiple partitions, which divide the cabinet body (1) into multiple areas for accommodating battery modules (3), and each area is provided with the exhaust fan (9); A channel (11) is provided between the cooler (2) and the battery module (3). The channel (11) is connected to the air inlet of the cooler (2). The return air vent (5) is located on the side of the cabinet body (1) near the channel (11). The number of return air vents (5) is multiple, and the multiple return air vents (5) are arranged at intervals along the channel (11); The cabinet body (1) is provided with a cabinet door, and the cabinet door is provided with heat dissipation holes; The cooler (2) is an air conditioner.

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