Lithium battery vertical box

Abstract

The utility model discloses a kind of lithium battery vertical box, specifically related to lithium battery technical field, including box seat, the box body of being installed in the top of box seat and the top cover being located at the top end of box body, one baffle is installed in the two sides in the long axis direction of the inner cavity of box body, flow channel is formed between baffle and the inner wall in the long axis direction of the inner cavity of box body, one reinforcing rib plate is installed on the inner wall in the short axis direction of the inner cavity of box body, reinforcing rib plate two side edges are inlaid with baffle inner wall, several horizontal extension flow channels are evenly provided on the reinforcing rib plate. The utility model constructs closed loop airflow circulation by flow channel, flow hole, flow channel, realizes lithium battery global efficient heat dissipation and avoids cold and hot air mixing, while relying on reinforcing rib plate to enhance structure rigidity, match memory alloy battery pressure strip and elastic pressing plate respectively to realize battery stable fixation and impact buffering, vertical design is also adapted to multi-specification battery, overall practicality and safety are prominent.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, and more specifically, to a vertical lithium battery housing. Background Technology

[0002] In energy storage and new energy fields, vertical lithium battery enclosures are widely used due to their high space utilization and adaptability to vertical battery arrangement. However, existing vertical enclosures still have several technical shortcomings, making it difficult to meet the requirements for safe and stable operation of lithium batteries. In terms of heat dissipation, the airflow design of existing products is fragmented, and airflow is easily turbulent within the enclosure, leading to the mixing of hot and cold air. This results in uneven coverage of battery modules at different heights, easily causing localized heat accumulation and accelerating battery capacity decay. Structurally, the height of vertical enclosures is greater than their width and length, lacking effective reinforcement structures. Long-term use can easily lead to lateral deformation, and the use of rigid components for battery fixing makes it difficult to accommodate the slight expansion of batteries during operation and easily causes battery displacement due to vibration, affecting the stability of electrical connections. Furthermore, the lack of a buffer structure to cope with impacts increases the risk of battery damage. In addition, most enclosures only accommodate a single battery specification, resulting in low flexibility and difficulty in meeting the needs of diverse application scenarios. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a vertical lithium battery housing, including a base, a housing mounted on top of the base, and a top cover located at the top of the housing. A baffle is installed on each side of the long axis of the housing cavity, forming a flow channel between the baffle and the inner wall of the housing cavity along the long axis. A reinforcing rib is installed on the inner wall of the housing cavity along the short axis, with its two side edges abutting against the inner sidewall of the baffle. Several horizontally extending flow channels are evenly formed on the reinforcing rib. Several flow holes are formed on the baffle that connect with the flow channels. A flow channel communicating with the interior of the base is formed at the bottom of the flow channel. A flow guide is installed inside the base. The interior of the housing communicates with the interior of the base through the flow channels, flow holes, flow channels, and flow channels, and airflow circulates through the flow guide.

[0004] In a preferred embodiment, the bottom of the housing is equipped with symmetrically arranged support feet, and the housing has a hollow air cavity inside. The guide component includes a first turbine fan and a second turbine fan symmetrically arranged in the air cavity. The first turbine fan and the second turbine fan divide the air cavity into two non-communicating parts and are respectively connected to the upper guide channel through the flow channels on both sides. The impellers of the first turbine fan and the second turbine fan are axially oriented towards the bottom of the housing.

[0005] In a preferred embodiment, the bottom of the housing has two windows corresponding to the impellers of the first turbine fan and the second turbine fan, respectively. A dustproof net is attached to the bottom of the housing to protect the windows, and a pad is installed on the outer wall of the support foot to support the edge of the dustproof net.

[0006] In a preferred embodiment, a battery retainer strip is installed on the top and bottom of the outer wall of the side adjacent to the baffle.

[0007] In a preferred embodiment, the flow channel is provided with a plurality of elastic pressure plates. The cross-section of the elastic pressure plates is set to be arc-shaped. The arc edge of the elastic pressure plates is fixed to the outer wall of the baffle and the edge of the opening side is attached to the inner wall of the box.

[0008] The technical effects and advantages of this utility model are as follows:

[0009] This utility model constructs a closed-loop airflow circulation through a flow channel, flow hole, and flow groove, achieving efficient heat dissipation of the lithium battery throughout the entire area and avoiding the mixing of hot and cold air. At the same time, it relies on reinforcing ribs to enhance structural rigidity, and combines memory alloy battery pressure strips and elastic pressure plates to achieve stable battery fixation and impact buffering respectively. The vertical design is also compatible with multiple battery specifications, making it highly practical and safe overall. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the internal structure of the box body of this utility model;

[0012] Figure 3 This is a cross-sectional view of the internal parts of the box body of this utility model.

[0013] Explanation of reference numerals in the attached drawings: 1. Box base, 2. Box body, 3. Top cover, 4. Baffle, 5. Flow channel, 6. Reinforcing rib, 7. Flow groove, 8. Flow hole, 9. Flow channel, 10. Support foot, 11. Air chamber, 12. First turbine fan, 13. Second turbine fan, 14. Window, 15. Dustproof net, 16. Gasket, 17. Battery pressure strip, 18. Elastic pressure plate. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0015] like Figure 1-3 The illustrated vertical lithium battery housing includes a base 1, a housing 2 mounted on top of the base 1, and a top cover 3 located at the top of the housing 2. A baffle 4 is installed on each side of the long axis of the housing 2's interior cavity, forming a flow channel 5 between the baffle 4 and the inner wall of the housing 2's interior cavity along the long axis. A reinforcing rib 6 is installed on each side of the inner wall of the housing 2's interior cavity along the short axis, with the edges of the reinforcing rib 6 fitting against the inner sidewall of the baffle 4. Several horizontally extending flow channels 7 are evenly distributed on the reinforcing rib 6. Several flow holes 8 are formed on the baffle 4 that connect with the flow channels 7. A flow channel 9 communicating with the interior of the base 1 is formed at the bottom of the flow channel 5. A flow guide is installed inside the base 1. The interior of the housing 2 communicates with the interior of the base 1 through the flow channels 7, flow holes 8, flow channel 5, and flow channel 9, and airflow circulates through the flow guide.

[0016] Based on the above, the baffle 4 and the inner wall of the box are first enclosed to form a flow channel 5. Then, the baffle 4 is attached to both sides of the reinforcing rib 6 to ensure that the flow holes 8 on the baffle 4 and the flow grooves 7 on the reinforcing rib 6 are precisely connected to construct a complete airflow path of "flow channel 5-flow channel 9-flow hole 8-flow groove 7". When the flow guide drives the airflow, the airflow can enter the box 2 from the box base 1 along this path and diffuse to the entire box area through the flow groove 7 to achieve full coverage heat dissipation of the lithium battery. At the same time, the reinforcing rib 6 provides lateral support for the box 2 to prevent the vertical box 2 from deforming due to its height.

[0017] Furthermore, the airflow path design is complete and precisely aligned, eliminating the risk of airflow leakage and laying the foundation for full-area heat dissipation; the reinforcing rib 6 serves the dual functions of "airflow guidance" and "structural reinforcement," improving the rigidity of the enclosure while ensuring heat dissipation efficiency, eliminating the need for additional support components and saving internal space.

[0018] The bottom of the housing 1 is equipped with symmetrically arranged support feet 10. The housing 1 has a hollow air cavity 11 inside. The flow guide includes a first turbine fan 12 and a second turbine fan 13 symmetrically arranged in the air cavity 11. The first turbine fan 12 and the second turbine fan 13 divide the air cavity 11 into two non-communicating parts, and are respectively connected to the upper flow guide channel 5 through the flow channels 9 on both sides. The impellers of the first turbine fan 12 and the second turbine fan 13 are axially oriented towards the bottom of the housing 1.

[0019] Based on the above, the support foot 10 raises the bottom of the housing 1 to reserve space for airflow in and out; after the air chamber 11 is divided into independent areas by the dual turbine fans, the first turbine fan 12 can draw in external cold air from the bottom of the housing, pressurize it and deliver it to the left guide channel 5 through the left flow channel 9, while the second turbine fan 13 receives the heat-absorbing hot air from the right guide channel 5, delivers it to the right air chamber 11 through the right flow channel 9, and then discharges it from the bottom of the housing; the design of the dual fan impellers facing downwards ensures that the airflow direction is perpendicular to the housing 1 and avoids the airflow from becoming turbulent in the air chamber 11.

[0020] Furthermore, the independent left and right air chambers can prevent the mixing of hot and cold air and improve heat dissipation efficiency; the dual turbine fans have a clear division of labor, one for intake and one for exhaust, forming a stable airflow circulation, which improves the heat dissipation speed by more than 50% compared to the single fan design; the support feet 10 not only ensure airflow, but also prevent the bottom of the base 1 from directly contacting the ground and getting damp.

[0021] The bottom of the housing 1 has two windows 14 corresponding to the impellers of the first turbine fan 12 and the second turbine fan 13, respectively. A dustproof net 15 is attached to the bottom of the housing 1 to protect the windows 14. A pad 16 is installed on the outer wall of the support leg 10 to support the edge of the dustproof net 15. One turbine fan is used to draw in external air from the window 14 and deliver it to the air chamber 11 on that side. The air then enters the upper guide channel 5 through the flow channel 9 on that side. The other turbine fan is used to discharge the air in the air chamber 11 on that side through the corresponding window 14 to the bottom of the housing 1.

[0022] Based on the above, the window 14 is precisely aligned with the turbine fan impeller to ensure efficient airflow. When the first turbine fan 12 is working, external cold air enters through the corresponding window 14, and the dust filter 15 filters dust and impurities in the air to prevent them from clogging the flow channel 9 or adhering to the battery surface. The gasket 16 supports the edge of the dust filter 15 to prevent the dust filter from sagging and deforming due to the fan suction, thus ensuring the air intake and exhaust area of ​​the window 14. At the same time, the second turbine fan 13 exhausts hot air through the corresponding window 14, forming a closed-loop airflow cycle of "intake-heat dissipation-exhaust".

[0023] Furthermore, the dust filter 15 effectively extends the service life of the turbine fan and battery, preventing malfunctions caused by impurities; the gasket 16 ensures the long-term stable operation of the dust filter 15 and facilitates disassembly and replacement; the closed-loop airflow circulation can continuously remove battery heat, preventing local heat accumulation.

[0024] The housing 2 is vertically arranged, with a height greater than its width and length, so that the interior of the housing 2 has sufficient height to facilitate the design of longer flow channels 5 and more flow grooves 7, while also facilitating the vertical arrangement of the battery pack.

[0025] Based on the above, the height advantage of the vertical design of the housing 2 allows the airflow channel 5 to extend along the height direction, covering lithium battery modules of different heights; more airflow channels 7 can be evenly distributed in the vertical direction to ensure that the upper and lower batteries can be in contact with the airflow; in addition, the vertical structure is adapted to the vertical arrangement requirements of lithium batteries, and multiple sets of batteries can be placed in an orderly manner without the need for layered brackets, making full use of the internal space of the housing 2.

[0026] Furthermore, the vertical structure is adapted to the installation requirements of large-capacity battery packs and can accommodate more battery modules; the design of the flow channel 5 and the flow groove 7 is adapted to the vertical layout, realizing full-area heat dissipation of the upper and lower battery layers without any heat dissipation blind spots; no layered brackets are required, simplifying the internal structure and reducing manufacturing costs.

[0027] A battery retaining strip 17 is installed on the top and bottom of the outer wall of the side closest to the baffle 4. The battery retaining strip 17 is made of shape memory alloy material.

[0028] Based on the above, after the lithium battery is placed vertically into the box 2, the battery clamping strip 17 on the baffle 4 clamps and limits the battery from the top and bottom; the shape memory alloy material has good elasticity and deformation recovery ability, which can not only fit tightly to the battery surface to prevent the battery from shifting longitudinally due to vibration, but also adapt to deformation when the battery expands slightly without damaging the battery shell.

[0029] Furthermore, the elastic fixing method of the shape memory alloy clamp is more adaptable to changes in the battery's working state than rigid fixing; the bidirectional clamping can restrict battery displacement in all directions, ensuring a stable connection between the battery and the electrical interface and reducing the risk of short circuits.

[0030] The flow channel 5 is provided with several elastic pressure plates 18. The elastic pressure plates 18 are made of shape memory alloy material. When the baffle 4 is subjected to force inside the box 2, it can compress the elastic pressure plates 18 to deform, thereby diluting the pressure generated by the displacement of the battery inside the box 2. The cross-section of the elastic pressure plate 18 is set to be arc-shaped. The arc edge of the elastic pressure plate 18 is fixed to the outer wall of the baffle 4 and the edge of the opening side is in contact with the inner wall of the box 2.

[0031] Based on the above, when the lithium battery expands due to temperature changes or the housing 2 is subjected to external impact, the baffle 4 will be squeezed on the side of the flow channel 5 by force; the arc-shaped structure of the elastic pressure plate 18 can absorb pressure through deformation, and the shape memory alloy material can quickly restore its original shape to avoid permanent deformation; its design of the opening side fitting against the inner wall of the housing 2 and the arc edge fixed to the outer wall of the baffle 4 ensures that the pressure plate can deform stably during pressure transmission and does not detach from other components.

[0032] Furthermore, compared to a flat pressure plate, the arc-shaped structure has a larger buffer area and a better pressure dilution effect; the shape memory alloy material is highly durable and can withstand multiple deformations over a long period of time; the elastic pressure plate 18 provides double protection for the housing 2 and the battery without occupying battery installation space, reducing the risk of collision damage.

[0033] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A vertical lithium battery housing, comprising a base, a housing mounted on top of the base, and a top cover located at the top of the housing, characterized in that, A baffle is installed on each side of the long axis of the inner cavity of the box, forming a flow channel between the baffle and the inner wall of the inner cavity along the long axis. A reinforcing rib is installed on the inner wall of the inner cavity along the short axis, with the edges of the reinforcing rib fitting against the inner sidewall of the baffle. Several horizontally extending flow channels are evenly formed on the reinforcing rib. Several flow holes that connect with the flow channels are formed on the baffle. A flow channel communicating with the inside of the box base is formed at the bottom of the flow channel. A flow guide is installed inside the box base. The inside of the box is connected to the inside of the box base through the flow channels, flow holes, flow channels, and flow channels, and airflow circulates through the flow guide.

2. The vertical lithium battery housing according to claim 1, characterized in that: The bottom of the housing is equipped with symmetrically arranged support feet. The housing has a hollow air cavity inside. The flow guide includes a first turbine fan and a second turbine fan symmetrically arranged in the air cavity. The first turbine fan and the second turbine fan divide the air cavity into two non-communicating parts and are connected to the upper flow guide channel through the flow channels on both sides respectively. The impellers of the first turbine fan and the second turbine fan face the bottom of the housing axially.

3. A vertical lithium battery housing according to claim 2, characterized in that: The bottom of the housing has two windows that correspond to the impellers of the first and second turbine fans, respectively. A dustproof net is attached to the bottom of the housing to protect the windows, and a pad is installed on the outer wall of the support leg to support the edge of the dustproof net.

4. A vertical lithium battery housing according to claim 1, characterized in that: A battery retaining strip is installed on the top and bottom of the outer wall of the side closest to the baffle.

5. A vertical lithium battery housing according to claim 1, characterized in that: The flow channel is equipped with several elastic pressure plates inside. The cross-section of the elastic pressure plate is set in an arc shape. The arc edge of the elastic pressure plate is fixed to the outer wall of the baffle and the edge of the opening side is attached to the inner wall of the box.

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