Explosion-proof lithium ion battery pack

Abstract

The utility model discloses an explosion-proof lithium ion battery pack, which belongs to the technical field of batteries and comprises a protective shell, support rods arranged on two sides of the lower end of the protective shell, a battery pack arranged inside the protective shell, straps arranged on the upper side of the protective shell, a heat dissipation port arranged at the upper end of the battery pack and a negative electrode arranged on the front side of the upper end of the battery pack. Through the arrangement of the protection assembly, when the battery pack is not used and transferred, the cover plate is shifted, the cover plate rotates on the fixing rod and rotates to one end of the fixing cover, the opening end of the fixing cover is sealed, meanwhile, the first magnetic strip on the cover plate and the second magnetic strip on the blocking rod are attracted, and the effect of attracting and fixing the cover plate is achieved; when the positive electrode and the negative electrode need to be used, the cover plate is poked to be opened, the supporting seat on the fixed cover supports the cover plate, the positive electrode and the negative electrode can be sealed and protected by arranging the protection assembly, and the risk that the positive electrode and the negative electrode are collided and damaged when the battery pack is transferred is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries, and in particular relates to a flameproof lithium ion battery pack. Background Art

[0002] A battery is a cup, tank or other container or part of a composite container that contains an electrolyte solution and metal electrodes to generate an electric current. It is a device that can convert chemical energy into electrical energy. It has a positive electrode and a negative electrode. With the advancement of technology, batteries generally refer to small devices that can generate electrical energy.

[0003] Chinese patent application No. 2023212717503 discloses a flameproof lithium-ion battery pack, including a battery pack, wherein the outer side of the battery pack is sheathed with a soft pad. The utility model is sheathed with a soft pad. When the device needs to be started, the pull ring is held by hand to drive the insertion rod to be pulled out from the inner side of the buckle plate, and the pull ring is continued to be pulled to move the support plate and the baffle upward along the inner side of the support plate through the insertion rod, so that the baffle opens the opening of the protective shell, the rubber sleeve and the soft pad, so that the staff can put their hands into the inner side of the opening to press the positive electrode to start the operation of the device. At the same time, when an external force hits the device, the external force first contacts the protective shell, so that the protective shell resists the external force, and at the same time transmits a small amount of external force to the inner side of the rubber sleeve, so that the rubber sleeve buffers and weakens the external force, and then the rubber sleeve transmits the external force to the inner side of the soft pad again, so that the soft pad buffers the external force for a second time, and weakens the external force to disappear, thereby conveniently providing protection for the device.

[0004] In the above-mentioned patent, the positive electrode and the negative electrode cannot be sealed and protected when the battery pack is not in use. When the battery pack is transferred, the positive electrode and the negative electrode are at risk of being damaged by bumps. At the same time, the heat dissipation port of the original device does not have a dust-proof function, and dust and other impurities can easily fall into the heat dissipation port. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a flameproof lithium-ion battery pack, which has the characteristics of being able to protect the positive electrode and the negative electrode.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof lithium-ion battery pack, comprising a protective shell, support rods are arranged on both sides of the lower end of the protective shell, a battery pack is arranged inside the protective shell, a shoulder strap is arranged on the upper side of the protective shell, a heat dissipation port is arranged on the upper end of the battery pack, a negative electrode is arranged on the front side of the upper end of the battery pack, a positive electrode is arranged on one side of the negative electrode, and a protective component is arranged at the position of the upper end of the battery pack corresponding to the positive electrode and the negative electrode.

[0007] Preferably, the protective component includes a fixed cover, a fixed rod, a cover plate, a gear rod, magnetic stripe 2, magnetic stripe 1 and a support seat, wherein a fixed cover is arranged at a position on the upper end of the battery pack corresponding to the positive electrode and the negative electrode, two fixed rods are arranged on the upper side of one end of the fixed cover, a cover plate is arranged between the two fixed rods, a gear rod is arranged on the lower side of one end inside the fixed cover, magnetic stripe 2 is arranged at one end of the gear rod, magnetic stripe 1 is arranged at a position on one end of the cover plate corresponding to magnetic stripe 2, and a support seat is arranged at the upper end of the fixed cover.

[0008] Preferably, the cover plate is rotatably connected to the fixing rod via an axle pin, one end of the cover plate is arranged as an arc structure, and when the cover plate is closed, the one end of the cover plate is tangent to the side edge of the upper end of the battery pack.

[0009] Preferably, one end of the gear rod is flush with one end of the fixed cover, and the second magnetic strip and the gear rod as well as the first magnetic strip and the cover plate are connected by snap-fitting.

[0010] Preferably, a fixing frame is provided at a position on the upper end of the battery pack corresponding to the heat dissipation port, a dustproof net is provided in the fixing frame, clamping blocks are provided at both ends of the dustproof net, and card slots corresponding to the card blocks are provided on both sides of the upper end of the fixing frame. The card block and the fixing frame are connected by fixing bolts, and fixing holes corresponding to the fixing bolts are provided in the card slots.

[0011] Preferably, after the clamping block enters the clamping slot, the side edge of the clamping block is in close contact with the inner wall of the clamping slot, and a through hole corresponding to the fixing bolt is provided in the clamping block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model provides a protective component. When the battery pack is not in use and is transferred, the cover plate is moved, and the cover plate rotates on the fixed rod, and the cover plate rotates to one end of the fixed cover to seal the open end of the fixed cover. At the same time, the magnetic stripe 1 on the cover plate is adsorbed with the magnetic stripe 2 on the shift rod to achieve the effect of adsorbing and fixing the cover plate. When the positive electrode and the negative electrode need to be used, the cover plate is opened by moving the cover plate, and the support seat on the fixed cover supports the cover plate. By providing the protective component, the positive electrode and the negative electrode can be sealed and protected to avoid the risk of the positive electrode and the negative electrode being damaged by being bumped when the battery pack is transferred.

[0014] 2. The utility model sets a dustproof net, puts the dustproof net into the fixed frame, and at the same time, the blocks at both ends of the dustproof net enter the card slots of the fixed frame, and then screws the fixing bolts into the fixing holes of the card slots, so as to achieve the effect of limiting and fixing the blocks and the dustproof net. The dustproof net has a dust-blocking effect on the heat dissipation port. By setting the dustproof net, the heat dissipation port has a dust-blocking function, so as to prevent dust and other impurities from falling into the heat dissipation port. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is a rear perspective view of the utility model;

[0017] Figure 3 For this utility model Figure 2 A magnified image of point A;

[0018] In the figure: 1. Protective shell; 2. Battery pack; 3. Protective assembly; 31. Fixed cover; 32. Fixed rod; 33. Cover plate; 34. Gear lever; 35. Magnetic stripe 2; 36. Magnetic stripe 1; 37. Support seat; 4. Shoulder strap; 5. Dust net; 6. Fixed frame; 7. Heat dissipation port; 8. Positive electrode; 9. Support rod; 10. Negative electrode; 11. Block; 12. Fixed bolt; 13. Slot; 14. Fixed hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example 1

[0021] See also Figure 1-3 The utility model provides the following technical solutions: a flameproof lithium-ion battery pack, comprising a protective shell 1, support rods 9 are arranged on both sides of the lower end of the protective shell 1, a battery pack 2 is arranged inside the protective shell 1, a shoulder strap 4 is arranged on the upper side of the protective shell 1, a heat dissipation port 7 is arranged on the upper end of the battery pack 2, a negative electrode 10 is arranged on the front side of the upper end of the battery pack 2, a positive electrode 8 is arranged on one side of the negative electrode 10, and a protective component 3 is arranged at the position of the upper end of the battery pack 2 corresponding to the positive electrode 8 and the negative electrode 10.

[0022] Specifically, the protective component 3 includes a fixed cover 31, a fixed rod 32, a cover plate 33, a gear lever 34, a second magnetic strip 35, a first magnetic strip 36 and a support seat 37, wherein a fixed cover 31 is provided at a position on the upper end of the battery pack 2 corresponding to the positive electrode 8 and the negative electrode 10, two fixed rods 32 are provided on the upper side of one end of the fixed cover 31, a cover plate 33 is provided between the two fixed rods 32, a gear lever 34 is provided on the lower side of one end inside the fixed cover 31, a second magnetic strip 35 is provided at one end of the gear lever 34, a first magnetic strip 36 is provided at a position on one end of the cover plate 33 corresponding to the second magnetic strip 35, and a support seat 37 is provided at the upper end of the fixed cover 31.

[0023] By adopting the above technical solution, when the battery pack 2 is not in use and is transferred, the cover plate 33 is moved, and the cover plate 33 rotates on the fixing rod 32, and the cover plate 33 rotates to one end of the fixing cover 31 to seal the open end of the fixing cover 31, and at the same time, the magnetic strip 1 36 on the cover plate 33 is adsorbed with the magnetic strip 2 35 on the shift rod 34 to achieve the effect of adsorbing and fixing the cover plate 33. When the positive electrode 8 and the negative electrode 10 need to be used, the cover plate 33 is opened, and the support seat 37 on the fixing cover 31 supports the cover plate 33. By setting the protective component 3, the positive electrode 8 and the negative electrode 10 can be sealed and protected, avoiding the risk of the positive electrode 8 and the negative electrode 10 being damaged by being bumped when the battery pack 2 is transferred.

[0024] Specifically, the cover plate 33 is rotatably connected to the fixing rod 32 via an axle pin, and one end of the cover plate 33 is configured as an arc structure. When the cover plate 33 is closed, the one end of the cover plate 33 is tangent to the upper side of the battery pack 2 .

[0025] By adopting the above technical solution, the cover plate 33 can be rotated on the fixing rod 32, and the cover plate 33 will not scratch the upper end of the battery pack 2 when it is closed.

[0026] Specifically, one end of the shift rod 34 is flush with one end of the fixed cover 31 , and the second magnetic strip 35 and the shift rod 34 as well as the first magnetic strip 36 and the cover plate 33 are connected by snapping.

[0027] By adopting the above technical solution, one end of the lever 34 is flush with one end of the fixed cover 31 without affecting the closing of the cover plate 33 , and the snap connection facilitates the disassembly and assembly of the magnetic strip 2 35 and the magnetic strip 1 36 .

[0028] When the present embodiment is used, when the explosion-proof lithium-ion battery pack 2 is used, the device is installed in a suitable position, and the battery pack 2 can be transferred to the use position by the shoulder strap 4. The protective shell 1 plays a role of explosion-proof protection for the battery pack 2. The powered device is connected to the positive electrode 8 and the negative electrode 10, and the battery pack 2 supplies power to it. By setting the protective component 3, when the battery pack 2 is not in use and is transferred, the cover plate 33 is moved, and the cover plate 33 rotates on the fixing rod 32. The cover plate 33 rotates to one end of the fixing cover 31 to seal the open end of the fixing cover 31. At the same time, the magnetic strip 1 36 on the cover plate 33 is adsorbed with the magnetic strip 2 35 on the gear rod 34 to achieve the effect of adsorbing and fixing the cover plate 33. When the positive electrode 8 and the negative electrode 10 need to be used, the cover plate 33 is moved to open, and the support seat 37 on the fixing cover 31 supports the cover plate 33. By setting the protective component 3, the positive electrode 8 and the negative electrode 10 can be sealed and protected, avoiding the risk of the positive electrode 8 and the negative electrode 10 being damaged by being bumped when the battery pack 2 is transferred.

[0029] Example 2

[0030] The difference between this embodiment and embodiment 1 is that: a fixing frame 6 is provided at the position of the upper end of the battery pack 2 corresponding to the heat dissipation port 7, a dustproof net 5 is provided in the fixing frame 6, clamping blocks 11 are provided at both ends of the dustproof net 5, and clamping grooves 13 corresponding to the clamping blocks 11 are provided on both sides of the upper end of the fixing frame 6, the clamping block 11 is connected to the fixing frame 6 by a fixing bolt 12, and a fixing hole 14 corresponding to the fixing bolt 12 is provided in the clamping groove 13.

[0031] By adopting the above technical solution, the dustproof net 5 is placed in the fixed frame 6, and at the same time, the blocks 11 at both ends of the dustproof net 5 enter the slots 13 of the fixed frame 6, and then the fixing bolts 12 are screwed into the fixing holes 14 of the slots 13, so as to achieve the effect of limiting and fixing the blocks 11 and the dustproof net 5, and the dustproof net 5 plays a dust-blocking role for the heat dissipation port 7. By setting the dustproof net 5, the heat dissipation port 7 has a dust-blocking function, and dust and other impurities are prevented from falling into the heat dissipation port 7.

[0032] Specifically, after the clamping block 11 enters the clamping slot 13 , the side of the clamping block 11 is in close contact with the inner wall of the clamping slot 13 , and a through hole corresponding to the fixing bolt 12 is provided in the clamping block 11 .

[0033] By adopting the above technical solution, the clamping block 11 is more stable in the clamping groove 13 , and the fixing bolt 12 can pass through the through hole on the clamping block 11 and be screwed into the fixing hole 14 .

[0034] When this embodiment is used, the dustproof net 5 is set and placed in the fixed frame 6. At the same time, the blocks 11 at both ends of the dustproof net 5 enter the slots 13 of the fixed frame 6. Then the fixing bolts 12 are screwed into the fixing holes 14 of the slots 13 to achieve the effect of limiting and fixing the blocks 11 and the dustproof net 5. The dustproof net 5 has a dust-blocking effect on the heat dissipation port 7. By setting the dustproof net 5, the heat dissipation port 7 has a dust-blocking function to prevent dust and other impurities from falling into the heat dissipation port 7.

[0035] The structure and working principle of the protective shell 1, battery pack 2, shoulder strap 4, heat dissipation port 7, positive electrode 8, support rod 9 and negative electrode 10 in the utility model have been disclosed in a flameproof lithium-ion battery pack disclosed in Chinese patent application No. 2023212717503. The working principle is that the battery pack 2 can be transferred to the use position by the shoulder strap 4, the protective shell 1 plays a flameproof protection role for the battery pack 2, and the powered device is connected to the positive electrode 8 and the negative electrode 10, and the battery pack 2 supplies power to it.

[0036] The working principle and use process of the utility model: when the explosion-proof lithium-ion battery pack 2 is used, the device is installed in a suitable position, and the battery pack 2 can be transferred to the use position through the shoulder strap 4. The protective shell 1 plays a role of explosion-proof protection for the battery pack 2. The powered device is connected to the positive electrode 8 and the negative electrode 10, and the battery pack 2 supplies power to it. By setting the protective component 3, when the battery pack 2 is not in use and is transferred, the cover plate 33 is moved, and the cover plate 33 rotates on the fixed rod 32. The cover plate 33 rotates to one end of the fixed cover 31 to seal the open end of the fixed cover 31. At the same time, the magnetic strip 1 36 on the cover plate 33 is adsorbed with the magnetic strip 2 35 on the gear lever 34 to achieve the effect of adsorbing and fixing the cover plate 33. The positive electrode 8 and the negative electrode 10 need to be When in use, the cover 33 is pushed open, and the support seat 37 on the fixed cover 31 supports the cover 33. By setting the protective component 3, the positive electrode 8 and the negative electrode 10 can be sealed and protected to avoid the risk of the positive electrode 8 and the negative electrode 10 being damaged by collision when the battery pack 2 is transferred. By setting the dustproof net 5, the dustproof net 5 is placed in the fixed frame 6, and the blocks 11 at both ends of the dustproof net 5 enter the slots 13 of the fixed frame 6, and then the fixing bolts 12 are screwed into the fixing holes 14 of the slots 13 to achieve the effect of limiting and fixing the blocks 11 and the dustproof net 5. The dustproof net 5 has a dust-blocking effect on the heat dissipation port 7. By setting the dustproof net 5, the heat dissipation port 7 has a dust-blocking function to prevent dust and other impurities from falling into the heat dissipation port 7.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flameproof lithium-ion battery pack, comprising a protective shell, characterized in that: Support rods are arranged on both sides of the lower end of the protective shell, a battery pack is arranged inside the protective shell, a shoulder strap is arranged on the upper side of the protective shell, a heat dissipation port is arranged on the upper end of the battery pack, a negative electrode is arranged on the front side of the upper end of the battery pack, a positive electrode is arranged on one side of the negative electrode, and a protective component is arranged at the position of the upper end of the battery pack corresponding to the positive electrode and the negative electrode.

2. The flameproof lithium-ion battery pack according to claim 1, characterized in that: The protective component includes a fixed cover, a fixed rod, a cover plate, a gear lever, a second magnetic strip, a first magnetic strip and a support seat, wherein a fixed cover is arranged at the position of the upper end of the battery pack corresponding to the positive electrode and the negative electrode, two fixed rods are arranged on the upper side of one end of the fixed cover, a cover plate is arranged between the two fixed rods, a gear lever is arranged on the lower side of one end inside the fixed cover, a second magnetic strip is arranged at one end of the gear lever, a first magnetic strip is arranged at the position of one end of the cover plate corresponding to the second magnetic strip, and a support seat is arranged at the upper end of the fixed cover.

3. The explosion-proof lithium-ion battery pack according to claim 2, characterized in that: The cover plate is rotatably connected to the fixing rod via an axle pin, one end of the cover plate is arranged in an arc structure, and when the cover plate is closed, the one end of the cover plate is tangent to the side edge of the upper end of the battery pack.

4. The explosion-proof lithium-ion battery pack according to claim 2, characterized in that: One end of the gear lever is flush with one end of the fixed cover, and the second magnetic strip and the gear lever as well as the first magnetic strip and the cover plate are connected by snapping.

5. The explosion-proof lithium-ion battery pack according to claim 1, characterized in that: A fixing frame is arranged at a position on the upper end of the battery pack corresponding to the heat dissipation port, a dustproof net is arranged on the fixing frame, clamping blocks are arranged at both ends of the dustproof net, and clamping slots corresponding to the clamping blocks are arranged on both sides of the upper end of the fixing frame. The clamping block is connected to the fixing frame by fixing bolts, and fixing holes corresponding to the fixing bolts are arranged in the clamping slots.

6. The explosion-proof lithium-ion battery pack according to claim 5, characterized in that: After the clamping block enters the clamping slot, the side edge of the clamping block is in close contact with the inner wall of the clamping slot, and a through hole corresponding to the fixing bolt is arranged in the clamping block.

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