Liquid immersion type intelligent battery box

Abstract

The utility model discloses a liquid immersion type intelligent battery box which comprises a box body and battery cells fully distributed in the box body, a gap is reserved between every two battery cells, the box body is filled with cooling liquid, and the gaps between the battery cells are filled with the cooling liquid; an upper cover plate used for heat dissipation is arranged on the upper portion of the box body, a main body substrate is arranged in the middle of the upper cover plate, upper-layer heat dissipation teeth used for making contact with air flow are formed on the upper portion of the substrate, and lower-layer heat dissipation teeth used for making contact with cold liquid are formed on the lower portion of the substrate. A small number of gaps are reserved between the battery cells in the box body, cooling liquid is injected into the box body after the interior of the box body is in a sealed state, the cooling liquid absorbs heat of the battery cells, the heat is conducted to the whole liquid so that the heat can be evenly distributed, and the heat dissipation teeth on the lower portion of the upper cover plate absorb the heat and conduct the heat to the middle substrate. And then the heat is conducted to flowing air outside the box body through the upper heat dissipation teeth, so that the temperature of each position in the box body is balanced, and the temperature in the box body is rapidly reduced.

Description

Technical Field

[0001] The utility model relates to a battery box with a heat dissipation structure, in particular to a liquid-immersed intelligent battery box. Background Art

[0002] A battery box is a battery pack consisting of several single cells, a battery management system, and related mounting components (equipment). The existing battery box structure is: the battery box is filled with cells and has natural ventilation holes around the outside of the box. The air flow removes the heat generated by the charging and dissipating of the batteries inside the box, thus dissipating the heat.

[0003] The drawbacks are that the heat dissipation process is slow, and the temperature accumulates. Once the cell temperature becomes too high, it can cause a fire that is difficult to extinguish with conventional fire extinguishing methods, posing a safety risk of explosion. Therefore, the battery must be shut down to dissipate heat once it reaches a certain temperature. Furthermore, thermal analysis of the interior of the battery box revealed uneven temperatures across the cell, resulting in low charging and discharging efficiency. Summary of the Invention

[0004] In response to the above-mentioned existing technical problems, the present invention provides a liquid-immersed intelligent battery box, which can quickly cool down the box body and maintain uniform temperature at all positions of the battery cells.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a liquid-immersed intelligent battery box, comprising a box body, and battery cells distributed throughout the box body; gaps are left between the battery cells, and cooling liquid is poured into the box body, and the cooling liquid fills the gaps between the battery cells; an upper cover plate for heat dissipation is provided on the upper part of the box body, and the middle of the upper cover plate is a main base plate, and an upper layer of heat dissipation teeth for contacting air flow is formed on the upper part of the base plate, and a lower layer of heat dissipation teeth for contacting cooling liquid is formed on the lower part of the base plate.

[0006] Furthermore, in the present invention, the arrangement density of the upper heat dissipation teeth is greater than the arrangement density of the lower heat dissipation teeth.

[0007] Furthermore, in the present invention, a sealing strip is provided between the upper frame of the box body and the upper cover plate.

[0008] The present invention further provides that the front side of the box body is a front cover plate, the front cover plate is isolated from the cooling liquid in the box body, and a cooling fan is provided on the front cover plate.

[0009] Furthermore, the utility model provides a detection panel on the front cover.

[0010] Furthermore, the utility model is provided with a ventilation valve on the upper cover plate.

[0011] Furthermore, the utility model is provided with a perspective window on the side of the box body.

[0012] Furthermore, the utility model provides that the upper cover is fixed to the box body by screws.

[0013] The utility model further has handle grooves on both sides of the box body, and handles are hinged in the handle grooves.

[0014] The beneficial effect of adopting the above technical solution is that a small gap is left between the battery cells in the box of the utility model, and cooling liquid is injected after the inside of the box is made into a sealed state. The coolant serves as a cooling medium, is non-conductive, non-corrosive, non-flammable, and conducts heat quickly and evenly. The coolant absorbs the heat of the battery cells, and the heat is conducted to the entire liquid to distribute the heat evenly. The heat dissipation teeth at the bottom of the upper cover absorb the heat and conduct it to the middle substrate, and then conduct it to the air flowing outside the box through the upper heat dissipation teeth, so that the temperature of each position in the box is balanced, the temperature inside the box is reduced, the charging and discharging efficiency is increased, and electricity is saved. The battery cells are isolated from the air in the cooling liquid and are not easy to explode or burn, which increases safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic structural diagram of the upper cover plate of the utility model;

[0017] Figure 3 It is a schematic diagram of the interior of the box of the utility model;

[0018] In the figure: 1. Box body, 2. Upper cover, 3. Screws, 4. Ventilation valve, 5. Front cover, 6. Cooling fan, 7. Handle, 8. Upper heat dissipation gear, 9. Base plate, 10. Lower heat dissipation gear, 11. Monitoring panel, 12. Sealing strip, 13. Battery cell, 14. Handle slot, 15. Perspective window. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below with reference to the accompanying drawings.

[0020] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0021] An embodiment of the present invention: Figure 1As shown, a liquid-immersed smart battery box includes a box body 1 and battery cells 13 that fill the box body 1. There are gaps between the battery cells 13. Cooling liquid is poured into the box body 1 to fill the gaps between the battery cells 13. An upper cover plate 2 for heat dissipation is provided on the upper part of the box body 1. Figure 2 As shown, the middle of the upper cover plate 2 is the main base plate 9. The upper part of the base plate 9 is formed with upper heat dissipation teeth 8 for contacting air flow, and the lower part of the base plate 9 is formed with lower heat dissipation teeth 10 for contacting cooling liquid. The upper cover plate 2 is made of aluminum and can efficiently conduct heat. A small gap is left between the battery cells 13 in the box body 1. After the inside of the box body 1 is made into a sealed state, cooling liquid is injected. The coolant serves as a cooling medium. It is non-conductive, non-corrosive, non-flammable, and conducts heat quickly and evenly. The coolant absorbs the heat from the battery cells and conducts the heat to the entire liquid to evenly distribute the heat. The lower heat dissipation teeth 10 of the upper cover plate 2 absorb the heat and conduct it to the middle base plate 9. Then, it is conducted to the air flowing outside the box body 1 through the upper heat dissipation teeth 8, so that the temperature at each position in the box body 1 reaches a balance, reducing the temperature inside the box body.

[0022] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 2 As shown, the arrangement density of the upper heat dissipation teeth 8 is greater than that of the lower heat dissipation teeth 10. The upper heat dissipation teeth 8 are more densely arranged, which is conducive to full contact with the air and rapid heat transfer.

[0023] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 3 As shown, a sealing strip 12 is provided between the upper frame of the box body 1 and the upper cover plate 2 to prevent the cooling liquid in the box body 1 from leaking out.

[0024] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 1 As shown, the front side of the box body 1 is a front cover plate 5, which is isolated from the cooling liquid in the box body 1. A cooling fan 6 is provided on the front cover plate 5. The cooling fan 6 is isolated from the liquid in the box body 1 and is used to increase air flow to remove heat from the front cover plate 5 and the inside of the box body 1.

[0025] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 3 As shown, a detection panel 11 is provided on the front cover 5, through which the charging and discharging and liquid temperature and capacity information in the box can be monitored and fed back in real time. An interface is reserved on the detection panel 11 for the charging and discharging function of the battery box.

[0026] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 1 As shown, a ventilation valve 4 is provided on the upper cover plate 2. The ventilation valve 4 can be used not only for exhaust but also for adding coolant.

[0027] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 3 As shown, a perspective window 15 is provided on the side of the box body 1 to facilitate observation of the situation inside the battery box.

[0028] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 3 As shown, the upper cover 2 is fixed to the box body by screws 3. A sealing strip 12 is provided on the frame of the box body 1, which is tightly fixed by screws 3 to prevent the coolant from leaking out.

[0029] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 3 As shown, there are handle grooves 14 on both sides of the box body 1, and handles 7 are hinged in the handle grooves 14 to facilitate transportation and placement of the battery box.

[0030] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the main technical solution of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A liquid-immersed smart battery box, comprising a box body and battery cells distributed throughout the box body; It is characterized in that There are gaps between the battery cells, and cooling liquid is poured into the box to fill the gaps between the battery cells; An upper cover plate for heat dissipation is provided on the upper part of the box body, the middle of the upper cover plate is a main base plate, the upper part of the base plate is formed with upper heat dissipation teeth for contacting air flow, and the lower part of the base plate is formed with lower heat dissipation teeth for contacting cooling liquid.

2. The liquid-immersed intelligent battery box according to claim 1, characterized in that: The arrangement density of the upper heat dissipation teeth is greater than the arrangement density of the lower heat dissipation teeth.

3. A liquid-immersed intelligent battery box according to claim 1 or 2, characterized in that: A sealing strip is provided between the upper frame of the box body and the upper cover plate.

4. The liquid-immersed intelligent battery box according to claim 1 or 2, characterized in that: The front side of the box body is a front cover plate, which is isolated from the cooling liquid in the box body and is provided with a cooling fan.

5. The liquid-immersed intelligent battery box according to claim 4, characterized in that: A detection panel is provided on the front cover.

6. The liquid-immersed intelligent battery box according to claim 1 or 2, characterized in that: A ventilation valve is provided on the upper cover plate.

7. The liquid-immersed intelligent battery box according to claim 1 or 2, characterized in that: A perspective window is provided on the side of the box body.

8. The liquid-immersed intelligent battery box according to claim 1 or 2, characterized in that: The upper cover is fixed to the box body by screws.

9. The liquid-immersed intelligent battery box according to claim 1 or 2, characterized in that: There are handle grooves on both sides of the box body, and handles are hinged in the handle grooves.

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