Novel heat dissipation air duct structure and air cooling energy storage system with same

Abstract

The utility model discloses a novel heat dissipation air duct structure and an air cooling energy storage system with the same, the novel heat dissipation air duct structure is characterized in that the novel heat dissipation air duct structure comprises a rear plate, a front plate, a first side plate, a second side plate, a longitudinal partition plate and a transverse partition plate; the novel heat dissipation air duct structure is an air duct which is formed by connecting the rear plate, the front plate, the first side plate and the second side plate in a surrounding mode and gradually contracts from top to bottom. The interior of the novel heat dissipation air duct structure is divided into a plurality of air duct units through a plurality of longitudinal partition plates and transverse partition plates correspondingly connected with the longitudinal partition plates. According to the novel heat dissipation air duct structure, the longitudinal partition plates and the transverse partition plates are arranged, the novel heat dissipation air duct structure is divided into the multiple air duct units, compared with an existing air duct with only one channel, the temperature in an air cooling energy storage system is lower, and the temperature difference between the position, close to the air outlet, of the battery and the position, away from the air outlet, of the battery is reduced. The transverse partition plates are arranged, so that the influence of cold air gravity is relieved, and the air outlet volume of the air outlet is more uniform.

Description

Technical Field

[0001] The utility model belongs to the technical field of new energy storage technology, and specifically relates to a novel heat dissipation air duct structure and an air-cooled energy storage system with the structure. Background Art

[0002] The application of lithium-ion batteries in industrial and commercial energy storage systems is composed of single battery cells arranged in rows to form battery modules, then battery modules to form battery packs, multiple battery packs to form battery clusters, and finally the clustered battery packs are installed in energy storage cabinets. In industrial and commercial energy storage, the battery composition structure of this cabinet-type energy storage system is the main one. The battery temperature field is an important factor to consider when charging and discharging the battery. During the charging and discharging process of lithium-ion batteries in energy storage systems, due to the chemical reaction inside the battery and the Joule heat of the internal resistance of the material, the battery generates a lot of heat, causing the temperature to rise. If the heat generated by the battery is not dissipated in time, it will affect the efficiency of the energy storage system. The increase in battery temperature intensifies the chemical reaction inside the lithium-ion battery, which in turn generates more heat, forming a vicious cycle. In severe cases, it may cause thermal runaway of the battery, such as battery combustion and explosion. At the same time, the uneven temperature distribution in the battery pack will affect the aging rate and capacity of the lithium-ion battery.

[0003] For the existing air duct structure, see the attached Figure 1 There is only one vertical conical channel in the existing air duct 1, and the cold air blows into the air inlet 1.1 of the air duct and enters a vertical conical channel. The cross-section of the vertical conical channel gradually decreases along the gas flow direction, and the existing air duct 1 is provided with air outlets 1.2 that decrease successively from top to bottom. However, in this solution, the temperature difference of the battery core between the battery modules is too large, and the air volume of the cold air of the existing air duct 1 entering the battery modules is uneven. Therefore, the utility model develops a new heat dissipation air duct structure to meet the thermal management requirements of cooling, temperature reduction and temperature uniformity of the battery system, and improves the consistency of the air outlet flow of the air duct and the temperature uniformity of the battery by optimizing the structure of the air duct.

[0004] Efficient thermal management can not only make the battery pack operate in a reasonable temperature operating range, but also eliminate a series of potential dangers caused by thermal runaway. It plays an important role in ensuring the electrical performance, uniformity and safety of the battery pack, and is therefore an important technical link in the development of energy storage systems. Utility Model Content

[0005] The utility model mainly aims to overcome the deficiencies of the prior art and provides a heat dissipation air duct structure and an air-cooled energy storage system having the structure.

[0006] The utility model is realized by the following technical solutions:

[0007] A novel heat dissipation air duct structure comprises a rear plate, a front plate, a first side plate, a second side plate, a longitudinal partition plate and a transverse partition plate;

[0008] The novel heat dissipation duct structure is an air duct that gradually shrinks from top to bottom and is formed by enclosing and connecting a rear plate, a front plate, a first side plate and a second side plate; the air inlet is arranged at the top of the novel heat dissipation duct structure, and a plurality of the air outlets are arranged at intervals along the length direction of the front plate; a plurality of transverse partitions are connected between the rear plate and the front plate, and each transverse partition corresponds to the lower edge position of the air outlet of the novel heat dissipation duct structure; a plurality of longitudinal partitions are connected between the rear plate and the front plate of the novel heat dissipation duct structure, and the plurality of longitudinal partitions are arranged at equal intervals along the width direction of the novel heat dissipation duct structure, the top of the longitudinal partition is flush with the top of the novel heat dissipation duct structure, and the lower end extends to be connected to the transverse partition, each longitudinal partition and the corresponding transverse partition divide the interior of the novel heat dissipation duct structure into a plurality of air duct units, the longitudinal partition connected to the topmost air outlet is arranged vertically, and the upper parts of the remaining longitudinal partitions connected to the lower air outlet are arranged vertically, and then bent at the lower edge position of the topmost air outlet in the direction close to the air outlet and extended to be connected to the transverse partition.

[0009] In the above technical solution, the first side panel is connected to the left side of the rear panel and the front panel, and the second side panel is connected to the right side of the rear panel and the front panel.

[0010] In the above technical solution, the upper portion of the second side plate is vertically arranged, and then bent at the lower edge of the uppermost air outlet and extended toward the air outlet to connect to the transverse partition.

[0011] In the above technical solution, the number of the air outlets is 5.

[0012] In the above technical solution, the number of the air duct units is 5.

[0013] In the above technical solution, the number of the longitudinal partitions is 4, and the number of the transverse partitions is 5.

[0014] In the above technical solution, the width of the transverse partition is equal to the width of the air outlet.

[0015] The utility model also provides an air-cooled energy storage system, which has a novel heat dissipation air duct structure.

[0016] The advantages and beneficial effects of the utility model are:

[0017] (1) The utility model arranges the longitudinal partitions at equal intervals, so that the air inlet of the novel heat dissipation duct structure is evenly divided, so that the air volume of the cold air blown by the air conditioner entering each duct unit can be evenly distributed, so as to ensure uniform heat dissipation in the air-cooled energy storage system. At the same time, the method of arranging the longitudinal partitions at equal intervals is more convenient for processing.

[0018] (2) The utility model is provided with longitudinal partitions and transverse partitions to divide the novel heat dissipation air duct structure into a plurality of air duct units. Compared with the existing air duct having only one channel, the temperature inside the air-cooled energy storage system is lower, thereby reducing the temperature difference between the battery position close to the air outlet and the battery position far from the air outlet.

[0019] (3) The utility model provides a transverse partition to alleviate the influence of the gravity of the cold air, and the air volume at the air outlet is more uniform.

[0020] (4) The utility model has a longitudinal partition connected to the top air outlet arranged vertically, and the upper parts of the other longitudinal partitions connected to the lower air outlets are arranged vertically, and then bent and extended toward the air outlet at the lower edge of the top air outlet to connect to the transverse partition. The bent longitudinal partitions can make the air outlet path of each independent air duct unit as short as possible, thereby ensuring smooth air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the existing air duct.

[0022] Figure 2 It is a structural schematic diagram of the utility model.

[0023] Figure 3 This is a temperature cloud diagram of the air-cooled energy storage system using the existing air duct.

[0024] Figure 4 This is the temperature cloud map inside the air-cooled energy storage system that uses a new heat dissipation duct structure.

[0025] Figure 5 This is a flow velocity cloud diagram in an air-cooled energy storage system using existing air ducts.

[0026] Figure 6 This is a flow velocity cloud diagram in an air-cooled energy storage system that uses a new heat dissipation duct structure.

[0027] In the figure, there is an existing air duct 1, an air inlet 1.1 of the existing air duct, an air outlet 1.2 of the existing air duct, an air inlet 2.1, a longitudinal partition 2.2, a transverse partition 2.3, an air outlet 2.4, a rear plate 2.5, a front plate 2.6, a first side plate 2.7, a second side plate 2.8, and an air duct unit 2.9.

[0028] For ordinary technicians in this field, other relevant drawings can be obtained based on the above drawings without any creative work. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the technical solution of the present utility model is further described below in conjunction with specific embodiments.

[0030] Embodiment 1

[0031] A new type of heat dissipation duct structure, see attached Figure 2 , including a rear plate 2.5, a front plate 2.6, a first side plate 2.7, a second side plate 2.8, a longitudinal partition 2.2 and a transverse partition 2.3.

[0032] The novel heat dissipation duct structure is an air duct which gradually shrinks from top to bottom and is formed by the rear panel 2.5, the front panel 2.6, the first side panel 2.7 and the second side panel 2.8 being enclosed and connected. Furthermore, the rear panel 2.5 and the front panel 2.6 are symmetrically arranged front to back, the first side panel 2.7 is connected to the left side of the rear panel 2.5 and the front panel 2.6, and the second side panel 2.8 is connected to the right side of the rear panel 2.5 and the front panel 2.6; the air inlet 2.1 is arranged at the top of the novel heat dissipation duct structure, and the plurality of air outlets 2.4 are arranged on the left side of the front panel 2.6, and the plurality of air outlets 2.4 are arranged at equal intervals along the length direction of the front panel 2.6; a plurality of transverse partitions 2.3 are connected between the rear panel 2.5 and the front panel 2.6 of the novel heat dissipation duct structure, and each transverse partition 2.3 corresponds to the lower edge position of the air outlet 2.4 of the novel heat dissipation duct structure; the novel heat dissipation duct structure A plurality of longitudinal partitions 2.2 are connected between the rear plate 2.5 and the front plate 2.6, and the plurality of longitudinal partitions 2.2 are arranged at equal intervals along the width direction of the novel heat dissipation duct structure, the top of the longitudinal partition 2.2 is flush with the top of the novel heat dissipation duct structure, and the lower end extends to be connected to the transverse partition 2.3, each longitudinal partition 2.2 and its correspondingly connected transverse partition 2.3 divide the interior of the novel heat dissipation duct structure into a plurality of duct units 2.9, and further, the longitudinal partition 2.2 connected to the topmost air outlet 2.4 is arranged vertically, and the upper parts of the remaining longitudinal partitions 2.2 connected to the lower air outlet 2.4 are arranged vertically, and then are bent at the lower edge of the topmost air outlet 2.4 in a direction close to the air outlet 2.4 and extended to be connected to the transverse partition 2.3, and the bent longitudinal partitions 2.4 can make the air outlet path of each independent air duct unit 2.9 as short as possible, thereby ensuring smooth air outlet. Since the longitudinal partitions 2.2 are arranged at equal intervals, the air inlet 2.1 of the novel heat dissipation duct structure is evenly divided, so that the air volume of the cold air blown out by the air conditioner entering each air duct unit 2.9 can be evenly distributed to ensure uniform heat dissipation in the air-cooled energy storage system. At the same time, the method of arranging the longitudinal partitions 2.2 at equal intervals is more convenient for processing; since the cold air blown out by the air conditioner has downward gravity, by arranging the transverse partitions 2.3, the air-conditioning cold air is blocked from moving downward by the transverse partitions 2.3, thereby facilitating the air-conditioning cold air to be discharged from the air outlet 2.4, thereby achieving a better cooling effect.

[0033] Preferably, the number of the air outlets 2.4 is five.

[0034] Preferably, the number of the air duct units 2.9 is five.

[0035] Preferably, the number of the longitudinal partitions 2.2 is four, and the number of the transverse partitions 2.3 is five.

[0036] Preferably, the upper portion of the second side plate 2.8 is vertically arranged, and then bends at the lower edge of the uppermost air outlet 2.4 and extends toward the air outlet 2.4 to connect to the transverse partition plate 2.3.

[0037] Preferably, the width of the transverse partition 2.3 is equal to the width of the air outlet 2.4.

[0038] Embodiment 2

[0039] This embodiment provides an air-cooled energy storage system, which has the novel heat dissipation air duct structure described in the above-mentioned embodiment 1.

[0040] Embodiment 3

[0041] See attached Figure 3-6 By comparing the temperature cloud map in the air-cooled energy storage system of the existing air duct with the temperature cloud map in the air-cooled energy storage system of the new heat dissipation air duct structure, it can be seen that the new heat dissipation air duct structure is provided with a longitudinal partition 2.2 and a transverse partition 2.3, and the new heat dissipation air duct structure is divided into a plurality of air duct units 2.9. Compared with the existing air duct with only one channel, the temperature in the air-cooled energy storage system is lower, so that the temperature difference between the position of the battery close to the air outlet 2.4 and the position far from the air outlet 2.4 is reduced; by comparing the flow velocity cloud map in the air-cooled energy storage system of the existing air duct with the flow velocity cloud map in the air-cooled energy storage system of the new heat dissipation air duct structure, it can be seen that the new heat dissipation air duct structure is provided with a transverse partition 2.3 to alleviate the influence of the gravity of the cold air, and the air outlet 2.4 has a more uniform air volume.

[0042] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to illustrate the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0043] Furthermore, relational terms such as “first” and “second” and the like are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any such actual relationship or order between these components.

[0044] The above is an exemplary description of the present invention. It should be noted that, without departing from the core of the present invention, any simple deformation, modification or other equivalent replacement that can be done by other technical personnel in this field without expending creative labor falls within the protection scope of the present invention.

Claims

1. A new type of heat dissipation duct structure, characterized by: The novel heat dissipation duct structure comprises a rear plate, a front plate, a first side plate, a second side plate, a longitudinal partition plate and a transverse partition plate; the novel heat dissipation duct structure is an air duct which is gradually contracted from top to bottom and is enclosed and connected by the rear plate, the front plate, the first side plate and the second side plate; an air inlet is arranged at the top of the novel heat dissipation duct structure, and a plurality of air outlets are arranged at intervals along the length direction of the front plate; a plurality of transverse partition plates are connected between the rear plate and the front plate, and each transverse partition plate corresponds to the lower edge position of the air outlet of the novel heat dissipation duct structure; a plurality of longitudinal partition plates are connected between the rear plate and the front plate of the novel heat dissipation duct structure Partitions, and multiple longitudinal partitions are arranged at equal intervals along the width direction of the new heat dissipation duct structure, the top of the longitudinal partition is flush with the top of the new heat dissipation duct structure, and the lower end extends to be connected to the transverse partition, each longitudinal partition and its correspondingly connected transverse partition divide the interior of the new heat dissipation duct structure into multiple duct units, the longitudinal partition connected to the top air outlet is vertically arranged, the upper parts of the remaining longitudinal partitions connected to the lower air outlet are vertically arranged, and then bent at the lower edge of the top air outlet toward the direction close to the air outlet to extend and connect to the transverse partition.

2. A novel heat dissipation duct structure according to claim 1, characterized in that: The first side plate is connected to the rear plate and the left side of the front plate, and the second side plate is connected to the right side of the rear plate and the front plate.

3. A novel heat dissipation duct structure according to claim 2, characterized in that: The upper portion of the second side plate is vertically arranged, and then bends at the lower edge of the uppermost air outlet and extends toward the direction close to the air outlet to connect to the transverse partition plate.

4. The novel heat dissipation duct structure according to claim 1 is characterized in that: The number of the air outlets is 5.

5. The novel heat dissipation duct structure according to claim 1 is characterized in that: The number of the air duct units is 5.

6. The novel heat dissipation duct structure according to claim 1 is characterized in that: The number of the longitudinal partitions is 4, and the number of the transverse partitions is 5.

7. The novel heat dissipation duct structure according to claim 1 is characterized in that: The width of the transverse partition is equal to the width of the air outlet.

8. An air-cooled energy storage system, characterized in that: It comprises a novel heat dissipation air duct structure as described in any one of claims 1-7.

Images