A protective case for an automotive battery

Abstract

This invention discloses a protective shell for automotive batteries, relating to the field of battery protective shell technology. It includes a main shell with cover plates at both its upper and lower ends. The main shell is composed of two long side panels and two short side panels. A partition is movably mounted on the opposite side of each of the two long side panels. A driving mechanism is located in the middle of each long side panel. Multiple heat dissipation fins are mounted on one side of each partition. Multiple through slots are formed on the long side panels, and multiple fixed channels are formed within the short side panels. Multiple movable channels are formed within each partition. When the partition is against the long side panel, two fixed channels and two movable channels connect to form a circulation channel. This invention achieves active heat dissipation by having the moving partitions drive the heat dissipation fins to extend outside the main shell. The circulation channel further enhances heat dissipation capacity. When the ambient temperature is low, the heat dissipation fins can be retracted into the main shell to prevent heat loss, ensuring stable and safe battery operation.

Description

Technical Field

[0001] This invention relates to the field of battery protection case technology, and more particularly to a protective case for automotive batteries. Background Technology

[0002] Currently, new energy pure electric vehicles use batteries as their energy storage power source, and these batteries are generally equipped with protective casings during installation. Chinese patent CN206134744U proposes a protective device based on an automotive battery, including a casing and a battery. The battery is installed inside the casing, which is made of aluminum or copper. Two terminals on the top of the battery are connected to an external circuit via fuses. A quick-drying adhesive box is installed between the two terminals, with openings on both sides of the box, and these openings are connected to the terminals via guide grooves.

[0003] During the operation of new energy vehicles, the battery temperature will rise. Due to the sealed design, the battery will be in a high-temperature environment during use, which will affect the battery's lifespan and, in severe cases, affect the safety of battery use. Summary of the Invention

[0004] The purpose of this invention is to provide a protective casing for automotive batteries, which has the advantages of rapid heat dissipation, airtight protection, and safety and stability.

[0005] This invention is achieved through the following technical solution:

[0006] A protective shell for an automotive battery includes a main shell with open ends at both the top and bottom, each with a detachable cover. The main shell consists of two long side panels and two short side panels. A partition is movably mounted on the opposite side of each of the two long side panels. A driving mechanism for sliding the partition is located in the middle of each long side panel. Multiple heat dissipation fins are provided on one side of each partition, penetrating the long side panel. Multiple through slots are provided on the long side panel for the heat dissipation fins to pass through. Multiple fixed channels are provided within each short side panel, and multiple movable channels are provided within each partition. When the partition is against the long side panel, two fixed channels at the same height connect with two movable channels to form a circulation channel.

[0007] The drive mechanism is further configured such that: the drive mechanism includes a lead screw threaded through the bottom of the partition plate; a micro motor for driving the lead screw to rotate is disposed inside the long enclosure plate; the micro motor is controlled by a temperature sensor, which is installed inside the main housing.

[0008] The partition is further configured such that multiple sliding plates are provided on both the upper and lower sides of the partition, and the side walls of the long partition are provided with sliding grooves adapted to the sliding of the sliding plates.

[0009] A further configuration is provided: a spring valve is provided at the port of the fixed channel, and a spring valve is also provided at the port of the movable channel. When the fixed channel and the movable channel are connected, the spring valve will be compressed to open the corresponding channel.

[0010] A further feature is provided: a sealing gasket is provided around the periphery of the spring valve.

[0011] The spring valve is further configured to include a valve cover and a spring, wherein an auxiliary channel is provided inside the valve cover.

[0012] A further feature is provided: a one-way valve is installed within the fixed channel.

[0013] A further configuration is provided: a mounting plate is provided on one side of the short enclosure, and the mounting plate has mounting holes.

[0014] In summary, the beneficial technical effects of the present invention are as follows:

[0015] (1) When the ambient temperature is high, the heat dissipation fins are extended to the outside of the main shell by moving the partition, thereby achieving active heat dissipation. When the ambient temperature is low, the heat dissipation fins are stored in the main shell, thereby avoiding heat loss.

[0016] (2) The temperature inside the main casing is regulated by adjustable heat dissipation fins to ensure that the battery is in a normal temperature environment, so as to avoid the battery from being affected by high or low ambient temperatures, and to ensure the stability and safety of the battery.

[0017] (3) When the ambient temperature is too high, a circulation channel consisting of a fixed channel and a moving channel can be formed inside the protective shell to improve heat dissipation. Attached Figure Description

[0018] Figure 1 This is the three-dimensional representation of the present invention. Figure 1 (Heat dissipation fins extended);

[0019] Figure 2 This is the three-dimensional representation of the present invention. Figure 2 (Heat dissipation fins in storage state);

[0020] Figure 3 It is along Figure 2 Sectional view of line AA in the middle;

[0021] Figure 4 yes Figure 3 Enlarged view of part C in the middle;

[0022] Figure 5 It is along Figure 2 Sectional view of the middle BB line;

[0023] Figure 6 This is a perspective view of the partition in this invention.

[0024] Reference numerals: 1. Main housing; 2. Cover plate; 3. Partition plate; 4. Heat dissipation fins; 6. Spring valve; 7. Mounting plate; 8. Mounting hole; 11. Long enclosure plate; 12. Short enclosure plate; 13. Through groove; 14. Fixed channel; 15. Moving channel; 16. Lead screw; 17. Micro motor; 18. Temperature sensor; 19. Slide plate; 21. Sealing gasket; 22. Valve cover; 23. Spring; 24. Auxiliary channel; 25. Check valve. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0026] Reference Figure 1 , Figure 2 and Figure 3 This invention discloses a protective shell for an automotive battery, comprising a main shell 1 with openings at both its top and bottom. The main shell 1 is composed of two long side panels 11 and two short side panels 12, and is rectangular in shape. Covers 2 are detachably installed at both the top and bottom openings of the main shell 1, and are fixed to the main shell 1 with bolts, thus forming a sealed space for storing the battery. A mounting plate 7 is provided on one side of the short side panel 12, located at the lowest point of the short side panel 12, and has two mounting holes 8. The mounting plate 7 facilitates the fixing of the main shell 1 to the vehicle body.

[0027] Reference Figure 3 Each of the two long enclosure plates 11 has a movable partition plate 3 positioned on its opposite side. The two partition plates 3 are located within the internal space of the main housing 1, and are parallel to the long enclosure plates 11 with adjustable spacing between them. Multiple heat dissipation fins 4 are arranged at equal intervals on one side of each partition plate 3. The heat dissipation fins 4 are made of metal to improve heat dissipation capacity. Each heat dissipation fin 4 penetrates the adjacent long enclosure plate 11, and the long enclosure plate 11 has multiple through slots 13 for the heat dissipation fins 4 to pass through. Figure 1 and Figure 2 The movement distance of the partition 3 controls the movement of the heat dissipation fins 4 to the external space of the main housing 1.

[0028] Reference Figure 5 and Figure 6A drive mechanism is provided in the middle of the enclosure to drive the corresponding partition 3 on the same side to slide. The drive mechanism includes a lead screw 16, which is embedded inside the long enclosure 11 and threaded through the bottom of the partition 3. Multiple sliding plates 19 are provided on the upper and lower sides of the partition 3. The side walls of the long enclosure 11 are provided with sliding grooves (not shown in the figure) adapted to the sliding of the sliding plates 19. A micro motor 17 is installed inside the long enclosure 11 to drive the lead screw 16 to rotate. The micro motor 17 is controlled by a temperature sensor 18, which is installed inside the main housing 1. When the temperature sensor 18 inside the main housing 1 senses that the internal temperature is high, it sends a start signal to the two micro motors 17. The two micro motors 17 drive the two corresponding partitions 3 to move respectively. The partitions 3 thereby drive the heat dissipation fins 4 to extend to the outside of the main housing 1, thereby accelerating heat dissipation.

[0029] Reference Figure 4 The short enclosure 12 has multiple fixed channels 14, and the partition 3 has multiple movable channels 15. At the same height within the main housing 1, there are two fixed channels 14 and two movable channels 15 simultaneously. When the partition 3 is abutted against the long enclosure 11, the two fixed channels 14 and the two movable channels 15 at the same height are connected and form a circulation channel.

[0030] Each fixed channel 14 has two ports equipped with spring valves 6 for controlling its on / off state, and each movable channel 15 also has a spring valve 6 for controlling its on / off state. The spring valve 6 includes a valve cover 22 and a spring 23. The valve cover 22 is inserted into the port of either the fixed channel 14 or the movable channel 15 and fixed by the spring 23. An auxiliary channel 24 is provided inside the valve cover 22, which is shaped like a "7" and can connect to either the movable channel 15 or the fixed channel 14. A sealing gasket 21 is provided around the spring valve 6, installed at the end of the valve cover 22 away from the spring 23. When the partition 3 moves closer to the short enclosure 12, the fixed channel 14 and the movable channel 15 become interconnected. At this time, the spring valve 6 in the fixed channel 14 is compressed into the fixed channel 14, thus opening the fixed channel 14. The spring valve 6 in the movable channel 15 is compressed into the movable channel 15, thus opening the movable channel 15. Finally, the two fixed channels 14 and the two movable channels 15 are connected, forming a complete circulation channel. A one-way valve 25 is installed in the fixed channel 14, which allows the coolant to flow in only one direction. During the circulation process, since the heat dissipation capacity of the movable channel 15, which is closer to the heat dissipation fins 4, is higher than that of the fixed channel 14, the coolant temperature in the movable channel 15 will be lower than that in the fixed channel 14, thus creating a temperature difference. Under the restriction of the one-way valve 25, the coolant in the circulation channel will flow in one direction.

[0031] When the partition 3 is not close to the short enclosure 12, both ends of the movable channel 15 and the fixed channel 14 are in a sealed state, and both the movable channel 15 and the fixed channel 14 are filled with coolant.

[0032] The working principle and beneficial effects of this invention are as follows:

[0033] The battery is installed inside the main housing 1. When the battery temperature gradually rises during use, the temperature sensor 18 detects that the main housing 1 has reached a critical temperature and activates two micro motors 17. This pushes the two partitions 3 towards the corresponding long side plate 11 until they are completely in contact. During the contact process, the heat dissipation fins 4 protrude from the through groove 13 and gradually become exposed on the outside of the main housing 1, thus playing a role in heat dissipation. After complete contact, the fixed channel 14 and the movable channel 15 are connected to form a complete circulation channel. The movable channel 15, which is closer to the heat dissipation fins 4, dissipates heat faster than the fixed channel 14. Therefore, the coolant in the circulation channel flows in one direction. Through the flow of coolant, the heat dissipation capacity of the main housing 1 is further enhanced, thereby ensuring the safety and stability of the battery.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A protective casing for automotive batteries, characterized in that: The main housing (1) includes a main shell, which has an open structure at both its upper and lower ends and is equipped with a cover plate (2) that can be detachably installed at both openings. The main shell (1) is composed of two long side panels (11) and two short side panels (12). A partition plate (3) is movably installed on the opposite side of the two long side panels (11). A driving mechanism for sliding the partition plate (3) is provided in the middle of the long side panels (11). Multiple heat dissipation fins (4) are provided on one side of the partition plate (3). The heat sink fins (4) penetrate the long enclosure (11). The long enclosure (11) has multiple through slots (13) for the heat sink fins (4) to pass through. The short enclosure (12) has multiple fixed channels (14). The partition (3) has multiple movable channels (15). When the partition (3) is close to the long enclosure (11), the two fixed channels (14) at the same height are connected to the two movable channels (15) and form a circulation channel.

2. The protective casing for an automotive battery according to claim 1, characterized in that: The drive mechanism includes a lead screw (16) that is threaded through the bottom of the partition (3). A micro motor (17) that drives the lead screw (16) to rotate is provided inside the long enclosure (11). The micro motor (17) is controlled by a temperature sensor (18) that is installed inside the main housing (1).

3. A protective casing for an automotive battery according to claim 2, characterized in that: Multiple sliding plates (19) are provided on both the upper and lower sides of the partition (3), and the side walls of the long partition (11) are provided with sliding grooves that are adapted to the sliding of the sliding plates (19).

4. A protective casing for an automotive battery according to claim 1, characterized in that: The fixed channel (14) is equipped with a spring valve (6) at its port, and the movable channel (15) is also equipped with a spring valve (6) at its port. When the fixed channel (14) and the movable channel (15) are connected, the spring valve (6) will be compressed to open the corresponding channel.

5. A protective casing for an automotive battery according to claim 4, characterized in that: A sealing gasket (21) is provided around the spring valve (6).

6. A protective casing for an automotive battery according to claim 4, characterized in that: The spring valve (6) includes a valve cover (22) and a spring (23), and an auxiliary channel (24) is provided inside the valve cover (22).

7. A protective casing for an automotive battery according to claim 1, characterized in that: A one-way valve (25) is installed in the fixed channel (14).

8. A protective casing for an automotive battery according to claim 1, characterized in that: A mounting plate (7) is provided on one side of the short enclosure (12), and the mounting plate (7) has mounting holes (8).

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