Lithium battery pack with temperature protection function

Abstract

The invention relates to the technical field of lithium batteries, and discloses a lithium battery pack with a temperature protection function, which comprises a box body, a cover is mounted on the inner wall of the top of the box body, a handle is fixedly connected to the top of the cover, a filter plate is fixedly connected to the front part of the box body, and heat dissipation holes are formed in the rear part of the box body. A cooling mechanism is arranged on the inner wall of the box body, a fan is fixedly connected to the inner wall of the box body, a swing mechanism is fixedly connected to the inner wall of the box body, and a waterproof box is fixedly connected to the inner wall of the box body. And an internal waterproof box can achieve waterproof protection on the lithium battery pack, dust attached to a filter plate can be removed, the situation that ventilation is affected by dust accumulation, and the heat dissipation effect of the lithium battery is further caused is prevented, a drying agent in a drying frame is turned over, and the drying effect of the lithium battery pack is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium batteries, in particular to a lithium battery pack with a temperature protection function. Background Art

[0002] Batteries are currently an important power source. They are a reusable rechargeable battery. The working performance of lithium batteries is greatly affected by temperature. During use, the battery is prone to heat up, which not only affects the performance of the battery, but also causes fire hazards when the heat is severe. Therefore, it is generally necessary to equip the lithium battery assembly with a corresponding water cooling mechanism or air cooling mechanism. In the prior art, when the lithium battery is water-cooled, a plurality of pipes are usually surrounded on the periphery of the lithium battery assembly, and then a coolant circulates inside the pipe to reduce the waste heat generated by the operation of the lithium battery assembly through the flow of the coolant.

[0003] The patent with announcement number CN106356565A provides a lithium battery pack, which includes at least two stacked battery cells, the battery cells include metal plates and battery cores arranged in the metal plates, the metal plates include upper metal plates and lower metal plates, the edges of the upper metal plates and the lower metal plates are folded back to form a rim, and the battery cells also include an insulating medium, which insulates the edges of the upper metal plates and the lower metal plates to avoid conduction between the upper metal plates and the lower metal plates. The lithium battery pack provided by the patent has a novel structure and is easy to manufacture. It can well cope with the thermal expansion effect of the battery cells when they are working, but the batteries in this device will gradually increase in temperature when working for a long time. If they are not effectively dissipated and cooled, the stable operation of the lithium batteries will be affected and even a safety accident will be caused. Therefore, a lithium battery pack with a temperature protection function is proposed to solve the above-mentioned problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a lithium battery pack with a temperature protection function in view of the deficiencies in the above-mentioned prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a lithium battery pack with temperature protection function, including a box body, a cover is installed on the top inner wall of the box body, a handle is fixedly connected to the top of the cover, a filter plate is fixedly connected to the front of the box body, a heat dissipation hole is opened at the rear of the box body, a cooling mechanism is arranged on the inner wall of the box body, a fan is installed on the inner wall of the box body, a swing mechanism is fixedly connected to the inner wall of the box body, a waterproof box is fixedly connected to the inner wall of the box body, the cooling mechanism includes a cold water tank, a waterproof plate, a water tank cover, a water pump, a water inlet pipe, a water outlet pipe, a connecting pipe, and a fixed block, the cold water tank is fixedly connected to the inner wall of the box body, the waterproof plate is installed on the top of the cold water tank, and the water tank cover is fixedly connected to the inner wall of the box body. The water pump is fixedly connected to the top of the waterproof board, the water pump is fixedly connected to the inner wall of the cold water tank, the water inlet pipe is fixedly connected to the front of the water pump, the water outlet pipe is fixedly connected to the inner wall of the cold water tank, the connecting pipe is fixedly connected to the right side of the water outlet pipe, the fixed block is fixedly connected to the surface of the connecting pipe, the left side of the cold water tank is fixedly connected to the right side of the waterproof box, the right side of the fixed block is fixedly connected to the left side of the waterproof box, the right side of the connecting pipe is fixedly connected to the left side of the water inlet pipe, the bottom of the water tank cover is in contact with the top of the cold water tank, the front part of the water inlet pipe is fixedly connected to the inner wall of the cold water tank, the lithium battery pack can be cooled, the temperature protection of the lithium battery pack is further strengthened, and the internal waterproof box can provide waterproof protection for the lithium battery pack.

[0006] Preferably, the swing mechanism includes a motor, a reciprocating screw, a connecting block, a U-shaped scraper, a drying frame, and a connecting rod. The motor is fixedly connected to the left side of the box, the reciprocating screw is fixedly connected to the right side of the motor, the connecting block is slidably connected to the surface of the reciprocating screw, the magnet 1 is fixedly connected to the front of the connecting block, the U-shaped scraper is slidably connected to the front of the box, the drying frame is fixedly connected to the inner wall of the box, the connecting rod is fixedly connected to the bottom of the connecting block, the surface of the reciprocating screw is rotatably connected to the inner wall of the box, the front of the magnet 1 contacts the inner wall of the box, and the U-shaped The inner wall of the scraper is slidably connected to the surface of the filter plate, and the inner wall of the U-shaped scraper is fixedly connected with two magnets, and the two magnets and the U-shaped scraper are magnetically attracted. The swing mechanism also includes a roller, a connecting rod, and a rotating rod. The roller is rotatably connected to the inner wall of the connecting rod, the connecting rod is fixedly connected to the inner wall of the roller, and the rotating rod is fixedly connected to the inner wall of the connecting rod. The surface of the roller is in contact with the inner wall of the drying frame, and the surface of the connecting rod is rotatably connected to the inner wall of the connecting rod, so that dust attached to the filter plate can be removed to prevent dust accumulation from affecting ventilation, thereby causing the heat dissipation effect of the lithium battery.

[0007] Preferably, a rubber plate is installed on the top inner wall of the waterproof box, a waterproof cover is fixedly connected to the top of the rubber plate, a handle is fixedly connected to the top of the waterproof cover, a lithium battery pack body is fixedly connected to the inner wall of the waterproof box, a ventilation plate is fixedly connected to the inner wall of the waterproof box, the bottom of the waterproof cover is in contact with the top of the waterproof box, the left side of the lithium battery pack body is fixedly connected to the right side of the ventilation plate, and the bottom of the rubber plate is in contact with the top of the lithium battery pack body, so that the desiccant in the drying frame can be turned over to improve its drying effect.

[0008] The present invention adopts the above technical solution to bring the following beneficial effects: 1. A lithium battery pack with temperature protection function: through the coordinated operation of the lithium battery pack body, cooling mechanism, cold water tank, waterproof plate, water tank cover, water pump, water inlet pipe, water outlet pipe, connecting pipe, fixing block, fan, ventilation plate, waterproof box, rubber plate, waterproof cover and handle, the lithium battery pack can be cooled to further enhance the temperature protection of the lithium battery pack. At the same time, cold air will pass through the battery packs inside the device to increase the contact area between the cold air and the battery, thereby improving its heat dissipation and cooling effect.

[0009] 2. A lithium battery pack with temperature protection function: through the coordinated operation of the swing mechanism, the motor, the reciprocating screw, the connecting block, the magnet, the U-shaped scraper and the filter plate, the dust attached to the filter plate can be removed to prevent dust accumulation from affecting ventilation and thus causing the heat dissipation effect of the lithium battery.

[0010] 3. A lithium battery pack with temperature protection function: through the coordinated operation of the drying frame, connecting rod, roller, connecting rod and rotating rod, the desiccant dries the air entering the device to prevent it from getting damp, and at the same time, the desiccant in the drying frame is turned over to improve its drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the box of the present invention; Figure 3 A half-section diagram of the cooling mechanism of the present invention; Figure 4 It is a schematic diagram of the cooling mechanism of the present invention; Figure 5 It is a half-section diagram of the swing mechanism of the present invention; Figure 6 It is a schematic diagram of the swing mechanism of the present invention; Figure 7 For the present invention Figure 6 A magnified view of the structure at center; Figure 8It is a schematic diagram of the structure of the waterproof box of the present invention.

[0012] In the figure: 1. box body; 2. cover; 3. handle; 4. filter plate; 5. heat dissipation hole; 6. cooling mechanism; 601. cold water tank; 602. waterproof plate; 603. water tank cover; 604. water pump; 605. water inlet pipe; 606. water outlet pipe; 607. connecting pipe; 608. fixing block; 7. swing mechanism; 701. motor; 702. reciprocating screw; 703. connecting block; 704. magnet 1; 705. U-shaped scraper; 706. drying frame; 707. connecting rod; 708. roller; 709. connecting rod; 710. rotating rod; 8. fan; 9. waterproof box; 10. rubber plate; 11. waterproof cover; 12. handle; 13. lithium battery pack body; 14. ventilation plate. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] See also Figure 1-Figure 7An embodiment of the present invention is: a lithium battery pack with temperature protection function, comprising a box body 1, a cover 2 is installed on the top inner wall of the box body 1, a handle 3 is fixedly connected to the top of the cover 2, a filter plate 4 is fixedly connected to the front of the box body 1, a heat dissipation hole 5 is opened at the rear of the box body 1, a cooling mechanism 6 is arranged on the inner wall of the box body 1, a fan 8 is installed on the inner wall of the box body 1, a swing mechanism 7 is fixedly connected to the inner wall of the box body 1, a waterproof box 9 is fixedly connected to the inner wall of the box body 1, and the cooling mechanism 6 includes a cold water The cold water tank 601 is fixedly connected to the inner wall of the box body 1, the waterproof plate 602 is installed on the top of the cold water tank 601, the water tank cover 603 is fixedly connected to the top of the waterproof plate 602, the water pump 604 is fixedly connected to the inner wall of the cold water tank 601, the water inlet pipe 605 is fixedly connected to the front of the water pump 604, and the water outlet pipe 606 is fixedly connected to the cold water tank 60 1, the connecting pipe 607 is fixedly connected to the right side of the water outlet pipe 606, the fixing block 608 is fixedly connected to the surface of the connecting pipe 607, the left side of the cold water tank 601 is fixedly connected to the right side of the waterproof box 9, when the lithium battery is used, the water pump 604 starts to work, and the coolant in the cold water tank 601 is pushed to the inner wall of the water inlet pipe 605, the coolant circulates through the connecting pipe 607, and the waterproof box 9 is cooled by water, and the coolant is discharged from the water outlet pipe 606 into the cold water tank 601, and the water pump 604 The coolant is then pushed to the water inlet pipe 605 for circulation in sequence to prevent the lithium battery pack from overheating, and the fan 8 rotates to allow cold air to enter the ventilation plate 14, thereby increasing the contact area between the cold air and the lithium battery and further enhancing the cooling performance. The right side of the fixed block 608 is fixedly connected to the left side of the waterproof box 9, the right side of the connecting pipe 607 is fixedly connected to the left side of the water inlet pipe 605, the bottom of the water tank cover 603 is in contact with the top of the cold water tank 601, and the front part of the water inlet pipe 605 is fixedly connected to the inner wall of the cold water tank 601.

[0015] Working principle: When the lithium battery is in use, the water pump 604 starts to work, pushing the coolant in the cold water tank 601 to the inner wall of the water inlet pipe 605. The coolant circulates through the connecting pipe 607 to cool the waterproof box 9. The coolant is discharged from the outlet pipe 606 into the cold water tank 601. The water pump 604 then pushes the coolant to the water inlet pipe 605 for circulation in sequence to prevent the lithium battery pack from overheating. The fan 8 rotates to allow cold air to enter the ventilation plate 14, thereby increasing the contact area between the cold air and the lithium battery and further enhancing the cooling performance.

[0016] See also Figure 1-Figure 8On the basis of the above embodiment, in another embodiment of the present invention, the swing mechanism 7 includes a motor 701, a reciprocating screw 702, a connecting block 703, a U-shaped scraper 705, a drying frame 706, and a connecting rod 707. The motor 701 is fixedly connected to the left side of the box body 1, the reciprocating screw 702 is fixedly connected to the right side of the motor 701, the connecting block 703 is slidably connected to the surface of the reciprocating screw 702, the magnet 704 is fixedly connected to the front of the connecting block 703, the U-shaped scraper 705 is slidably connected to the front of the box body 1, the drying frame 706 is fixedly connected to the inner wall of the box body 1, and the connecting rod 707 is fixedly connected to the bottom of the connecting block 703. The surface of the reciprocating screw 702 is rotatably connected to the inner wall of the box body 1, the front part of the magnet 1 704 contacts the inner wall of the box body 1, the inner wall of the U-shaped scraper 705 is slidably connected to the surface of the filter plate 4, the inner wall of the U-shaped scraper 705 is fixedly connected with the magnet 2, and the magnet 2 and the U-shaped scraper 705 are magnetically attracted to each other, the swing mechanism 7 also includes a roller 708, a connecting rod 709, and a rotating rod 710, the roller 708 is rotatably connected to the inner wall of the connecting rod 707, the connecting rod 709 is fixedly connected to the inner wall of the roller 708, the rotating rod 710 is fixedly connected to the inner wall of the connecting rod 709, the surface of the roller 708 is connected to the inner wall of the drying frame 706 The surfaces of the connecting rod 709 and the inner wall of the connecting rod 707 are connected and rotated, the forward and reverse motor 701 is started, the reciprocating screw 702 rotates and drives the connecting block 703 to move back and forth, so that the magnet 1 704 connected to the connecting block 703 absorbs the magnet 2 in the U-shaped scraper 705 and moves back and forth. The U-shaped scraper 705 can remove the dust on the filter plate 4 while moving, the connecting block 703 drives the connecting rod 707 to move back and forth, the connecting rod 707 drives the roller 708, the roller 708 contacts the inner wall of the drying frame 706 for friction, so that the roller 708 rotates, and at the same time drives the connecting rod 709 to rotate and drives the rotating rod 710 to rotate. The rotating rod 710 rotates and turns the desiccant in the drying frame 706, thereby increasing the contact area between the desiccant and the air and further enhancing the drying effect. A rubber plate 10 is installed on the top inner wall of the waterproof box 9. A waterproof cover 11 is fixedly connected to the top of the rubber plate 10. A handle 12 is fixedly connected to the top of the waterproof cover 11. A lithium battery pack body 13 is fixedly connected to the inner wall of the waterproof box 9. A ventilation plate 14 is fixedly connected to the inner wall of the waterproof box 9. The bottom of the waterproof cover 11 is in contact with the top of the waterproof box 9. The left side of the lithium battery pack body 13 is fixedly connected to the right side of the ventilation plate 14. The bottom of the rubber plate 10 is in contact with the top of the lithium battery pack body 13.

[0017] Working principle: the forward and reverse motor 701 is started, the reciprocating screw 702 rotates to drive the connecting block 703 to move back and forth, so that the magnet 1 704 connected to the connecting block 703 absorbs the magnet 2 in the U-shaped scraper 705 and moves back and forth. The U-shaped scraper 705 can remove the dust on the filter plate 4 while moving. The connecting block 703 drives the connecting rod 707 to move back and forth, and the connecting rod 707 drives the roller 708. The roller 708 contacts the inner wall of the drying frame 706 for friction, so that the roller 708 rotates, and at the same time drives the connecting rod 709 to rotate and drives the rotating rod 710 to rotate. The rotating rod 710 rotates to turn over the desiccant in the drying frame 706, thereby increasing the contact area between the desiccant and the air, and further enhancing the drying effect.

[0018] The present invention provides a lithium battery pack with a temperature protection function. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A lithium battery pack with temperature protection function, comprising a box (1), characterized in that: A cover (2) is installed on the top inner wall of the box body (1), a handle (3) is fixedly connected to the top of the cover (2), a filter plate (4) is fixedly connected to the front of the box body (1), a heat dissipation hole (5) is opened at the rear of the box body (1), a cooling mechanism (6) is arranged on the inner wall of the box body (1), a fan (8) is installed on the inner wall of the box body (1), a swing mechanism (7) is fixedly connected to the inner wall of the box body (1), and a waterproof box (9) is fixedly connected to the inner wall of the box body (1); The cooling mechanism (6) comprises a cold water tank (601), a waterproof plate (602), a water tank cover (603), a water pump (604), a water inlet pipe (605), a water outlet pipe (606), a connecting pipe (607), and a fixing block (608). The cold water tank (601) is fixedly connected to the inner wall of the box body (1); the waterproof plate (602) is installed on the top of the cold water tank (601); the water tank cover (603) is fixedly connected to the top of the waterproof plate (602); the water pump (604) is fixedly connected to the inner wall of the cold water tank (601); the water inlet pipe (605) is fixedly connected to the front of the water pump (604); the water outlet pipe (606) is fixedly connected to the inner wall of the cold water tank (601); the connecting pipe (607) is fixedly connected to the right side of the water outlet pipe (606); and the fixing block (608) is fixedly connected to the surface of the connecting pipe (607).

2. A lithium battery pack with temperature protection function according to claim 1, characterized in that: The left side of the cold water tank (601) is fixedly connected to the right side of the waterproof box (9), the right side of the fixing block (608) is fixedly connected to the left side of the waterproof box (9), the right side of the connecting pipe (607) is fixedly connected to the left side of the water inlet pipe (605), the bottom of the water tank cover (603) is in contact with the top of the cold water tank (601), and the front part of the water inlet pipe (605) is fixedly connected to the inner wall of the cold water tank (601).

3. A lithium battery pack with temperature protection function according to claim 2, characterized in that: The swing mechanism (7) comprises a motor (701), a reciprocating screw (702), a connecting block (703), a U-shaped scraper (705), a drying frame (706), and a connecting rod (707); the motor (701) is fixedly connected to the left side of the box body (1); the reciprocating screw (702) is fixedly connected to the right side of the motor (701); the connecting block (703) is slidably connected to the surface of the reciprocating screw (702); the magnet 1 (704) is fixedly connected to the front of the connecting block (703); the U-shaped scraper (705) is slidably connected to the front of the box body (1); the drying frame (706) is fixedly connected to the inner wall of the box body (1); and the connecting rod (707) is fixedly connected to the bottom of the connecting block (703).

4. A lithium battery pack with temperature protection function according to claim 3, characterized in that: The surface of the reciprocating screw (702) is rotatably connected to the inner wall of the box body (1), the front part of the first magnet (704) is in contact with the inner wall of the box body (1), the inner wall of the U-shaped scraper (705) is slidably connected to the surface of the filter plate (4), the inner wall of the U-shaped scraper (705) is fixedly connected to the second magnet, and the second magnet and the U-shaped scraper (705) are magnetically attracted to each other.

5. A lithium battery pack with temperature protection function according to claim 4, characterized in that: The swing mechanism (7) further comprises a roller (708), a connecting rod (709), and a rotating rod (710); the roller (708) is rotatably connected to the inner wall of the connecting rod (707); the connecting rod (709) is fixedly connected to the inner wall of the roller (708); and the rotating rod (710) is fixedly connected to the inner wall of the connecting rod (709).

6. A lithium battery pack with temperature protection function according to claim 5, characterized in that: The surface of the roller (708) is in contact with the inner wall of the drying frame (706), and the surface of the connecting rod (709) is rotatably connected to the inner wall of the connecting rod (707).

7. A lithium battery pack with temperature protection function according to claim 6, characterized in that: A rubber plate (10) is installed on the top inner wall of the waterproof box (9); a waterproof cover (11) is fixedly connected to the top of the rubber plate (10); a handle (12) is fixedly connected to the top of the waterproof cover (11); a lithium battery pack body (13) is fixedly connected to the inner wall of the waterproof box (9); and a ventilation plate (14) is fixedly connected to the inner wall of the waterproof box (9).

8. A lithium battery pack with temperature protection function according to claim 7, characterized in that: The bottom of the waterproof cover (11) is in contact with the top of the waterproof box (9), the left side of the lithium battery pack body (13) is fixedly connected to the right side of the ventilation plate (14), and the bottom of the rubber plate (10) is in contact with the top of the lithium battery pack body (13).

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