A lithium battery protection device with temperature monitoring function

Abstract

The utility model discloses a lithium battery protection device with a temperature monitoring function, which relates to the field of lithium battery technology, including a lithium battery body and a lower shell plate arranged on the lower surface of the lithium battery body, the upper surface of the lower shell plate is penetrated with a lower slot, the upper surface of the lithium battery body is provided with an upper shell plate, the lower surface of the upper shell plate is penetrated with an upper slot, a temperature sensor is installed in the middle position of the upper surface of the lower shell plate, and a reinforcement mechanism is commonly provided between the upper shell plate and the lower shell plate. Compared with the existing ordinary lithium battery protection device, the lithium battery protection device with a temperature monitoring function has a lower slot and an upper slot that can limit the upper and lower sides of the lithium battery body, and the lateral displacement of the lower shell plate and the upper shell plate can be limited by sliding the card block into the inside of the card slot, and the transverse plate can limit the longitudinal displacement. If it is necessary to connect with other battery packs, the connecting plate can be fixed in each connecting slot.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a lithium battery protection device with a temperature monitoring function. Background Art

[0002] Lithium batteries are batteries that use lithium metal or lithium alloy as the negative electrode material and non-aqueous electrolyte solution, so this type of battery is also called lithium metal battery. Unlike other batteries, lithium batteries have the characteristics of high charging density, long life and high unit cost. The temperature of lithium batteries is easy to rise during charging or use, which affects the performance of lithium batteries and may cause safety accidents in serious cases.

[0003] For example, the application number is 202320295407.6, which is a protection device for preventing lithium batteries from overheating. This utility model sets a bimetallic strip, an insulating rod and a conductive block. When the temperature of the lithium battery body is too high, it will conduct heat through the heat-conducting column, so that the bimetallic strip is deformed by heat, pushing the insulating rod to move the conductive block, and the conductive block leaves the pin and the contact piece, thereby disconnecting the circuit and avoiding danger caused by continued charging or use of the lithium battery body. However, after analyzing the above-mentioned comparative patents and existing spliced ​​lithium battery packs, it was found that if the lithium battery body or most lithium battery bodies are spliced, most of them need to be spliced ​​using an integral injection-molded shell. While split splicing is convenient for individual disassembly, it is difficult to improve the stability of the connection between batteries.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a lithium battery protection device with temperature monitoring function is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a lithium battery protection device with a temperature monitoring function to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lithium battery protection device with a temperature monitoring function, comprising a lithium battery body and a lower shell plate arranged on the lower surface of the lithium battery body, the upper surface of the lower shell plate is penetrated with a lower slot, the upper surface of the lithium battery body is provided with an upper shell plate, the lower surface of the upper shell plate is penetrated with an upper slot, a temperature sensor is installed in the middle position of the upper surface of the lower shell plate, and a reinforcement mechanism is jointly arranged between the upper shell plate and the lower shell plate.

[0007] Preferably, the reinforcement mechanism comprises a clamping rod arranged between the upper shell plate and the lower shell plate, the left and right outer surfaces of the upper shell plate and the lower shell plate are fixedly connected with clamping blocks, and the inner surface of the clamping rod is provided with a clamping groove.

[0008] Preferably, the upper and lower ends of the clamping rod are fixedly connected to the transverse plate by screws, the outer surface of the clamping rod is provided with a connecting groove, and the interior of the connecting groove is fixedly connected to the connecting plate by screws.

[0009] Preferably, an aluminum protective tube is sleeved on the outside of the lithium battery body between the lower card slot and the upper card slot, and a lower insulating pad is bonded to the upper surface of the horizontal plate.

[0010] Preferably, a protective shell is provided on the lower surface of the lower shell plate and the upper surface of the upper shell plate, and the protective shell is fixedly connected to the lower surface of the lower shell plate and the upper surface of the upper shell plate through screws and preset screw holes.

[0011] Preferably, a protective pad is bonded to the inner surface of the protective shell at the pole ear of each lithium battery body, and an upper insulating pad is bonded to the inner surface of the protective shell above the lower insulating pad.

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

[0013] 1. The utility model is provided with a lithium battery body, a lower shell plate, a lower slot, an upper shell plate, an upper slot, a temperature sensor, a reinforcement mechanism, a clamping rod, a transverse plate, a connecting slot, a connecting plate, a clamping block, and a clamping slot. The lower and upper slots of the device can limit the upper and lower sides of the lithium battery body. The clamping block can be slidably clamped in the clamping slot to limit the lateral displacement of the lower and upper shell plates, and the transverse plate can be used to limit the longitudinal displacement. The reinforcement mechanism can play a good split splicing effect;

[0014] 2. The utility model is provided with an aluminum protective tube, a lower insulating pad, a protective shell, a protective pad, and an upper insulating pad. After the protective shell is installed with screws, the protective pad inside the protective shell can fit the pole ear and the conductive sheet, pressing the connection and providing protective characteristics, avoiding the influence of external conductive objects on the pole ear and reducing the possibility of fire. The upper insulating pad and the lower insulating pad can firmly clamp the suspended conductive sheet. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 For this utility model Figure 1 Schematic diagram of a partial three-dimensional structure;

[0017] Figure 3 For this utility model Figure 2 Schematic diagram of a partial three-dimensional structure;

[0018] Figure 4 For this utility model Figure 3 Schematic diagram of a partial three-dimensional structure;

[0019] Figure 5 It is a bottom-up three-dimensional structural schematic diagram of the upper protective shell 10 of the present invention.

[0020] In the figure: 1. lithium battery body; 2. lower shell plate; 3. lower slot; 4. upper shell plate; 5. upper slot; 6. temperature sensor; 7. reinforcement mechanism; 71. clamping rod; 711. cross plate; 712. connecting slot; 713. connecting plate; 72. clamping block; 73. clamping slot; 8. aluminum protective tube; 9. lower insulating pad; 10. protective shell; 11. protective pad; 12. upper insulating pad. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figure 1-Figure 4As shown, a lithium battery protection device with temperature monitoring function includes a lithium battery body 1 and a lower shell plate 2 arranged on the lower surface of the lithium battery body 1, a lower card slot 3 is penetrated through the upper surface of the lower shell plate 2, an upper shell plate 4 is arranged on the upper surface of the lithium battery body 1, an upper card slot 5 is penetrated through the lower surface of the upper shell plate 4, a temperature sensor 6 is installed in the middle position of the upper surface of the lower shell plate 2, a reinforcement mechanism 7 is commonly arranged between the upper shell plate 4 and the lower shell plate 2, and the lower card slot 3 and the upper card slot 5 are penetrated and provided for The ear of the lithium battery body 1 is exposed, and the temperature sensor 6 is wirelessly connected to the monitor to transmit temperature data. The setting position of the temperature sensor 6 can take into account each lithium battery body 1 to monitor the high temperature that may be generated. The reinforcement mechanism 7 includes a clamping rod 71 arranged between the upper shell plate 4 and the lower shell plate 2. The upper shell plate 4 and the lower shell plate 2 are fixedly connected to the outer surfaces on both sides of the left and right sides. A clamping groove 73 is opened on the inner surface of the clamping rod 71. The design shape of the clamping block 72 and the clamping groove 73 is the same. The clamping block 72 can be clamped to the clamping groove 73. The upper and lower ends of the clamping rod 71 are fixedly connected to the cross plate 711 by screws inside the connection slot 73, and the outer surface of the clamping rod 71 is provided with a connection slot 712. The connection slot 712 is fixedly connected to the connection plate 713 by screws. One end of the connection plate 713 can be fixedly connected to the connection slot 712 of another lithium battery pack by screws. When installing the lithium battery body 1, the lithium battery body 1 can be placed between the lower shell plate 2 and the upper shell plate 4, and the lower clamping slot 3 and the upper clamping slot 5 are connected to the upper and lower sides of the lithium battery body 1. The lateral displacement of the lower shell plate 2 and the upper shell plate 4 can be limited by sliding the card block 72 into the card slot 73, and the transverse plate 711 is fixedly connected to the upper and lower ends of the card rod 71 by screws to limit the longitudinal displacement. The two can enhance the stability of the connection between the lithium battery bodies 1. If it is necessary to connect with other battery packs, the connecting plates 713 can be fixed in the connecting slots 712 to play a splicing role. The reinforcement mechanism 7 can play a good split splicing effect.

[0023] like Figure 1 , Figure 4 and Figure 5 As shown, an aluminum protective tube 8 is provided on the outside of the lithium battery body 1 between the lower card slot 3 and the upper card slot 5, and a lower insulating pad 9 is bonded to the upper surface of the horizontal plate 711. The aluminum protective tube 8 can provide better protection and heat dissipation characteristics for the lithium battery body 1.

[0024] Furthermore, a protective shell 10 is provided on the lower surface of the lower shell plate 2 and the upper surface of the upper shell plate 4, and the protective shell 10 is fixedly connected to the lower surface of the lower shell plate 2 and the upper surface of the upper shell plate 4 through screws and preset screw holes, and preset screw holes are provided on the lower surface of the lower shell plate 2 and the upper surface of the upper shell plate 4.

[0025] Furthermore, a protective pad 11 is bonded to the inner surface of the protective shell 10 at the pole ear of each lithium battery body 1, and an upper insulating pad 12 is bonded to the inner surface of the protective shell 10 above the lower insulating pad 9. The bonding connection makes it convenient to replace the vulnerable lower insulating pad 9, protective pad 11, and upper insulating pad 12.

[0026] Working principle: When using the lithium battery protection device with temperature monitoring function, first, when installing the lithium battery body 1, the lithium battery body 1 can be placed between the lower shell plate 2 and the upper shell plate 4, and the lower card slot 3 and the upper card slot 5 limit the upper and lower sides of the lithium battery body 1. By sliding the card block 72 into the card slot 73, the lateral displacement of the lower shell plate 2 and the upper shell plate 4 can be limited, and then the cross plate 711 is fixedly connected to the upper and lower ends of the card rod 71 by screws, and the longitudinal displacement can be limited. The two can enhance the stability of the connection between each lithium battery body 1 for the lithium battery body 1. If it is necessary to connect with other battery packs, the connecting plate 713 can be fixed in each connecting slot 712 to play a splicing role. After the protective shell 10 is installed with screws, the protective pad 11 inside the protective shell 10 can fit the pole ear and the conductive sheet, press the connection while providing protection characteristics, avoid the influence of external conductive objects on the pole ear, and reduce the possibility of fire. This is the working principle of the lithium battery protection device with temperature monitoring function.

Claims

1. A lithium battery protection device with a temperature monitoring function, comprising a lithium battery body (1) and a lower shell plate (2) arranged on the lower surface of the lithium battery body (1), characterized in that: The upper surface of the lower shell plate (2) is provided with a lower slot (3), the upper surface of the lithium battery body (1) is provided with an upper shell plate (4), the lower surface of the upper shell plate (4) is provided with an upper slot (5), a temperature sensor (6) is installed in the middle of the upper surface of the lower shell plate (2), and a reinforcement mechanism (7) is provided between the upper shell plate (4) and the lower shell plate (2).

2. A lithium battery protection device with temperature monitoring function according to claim 1, characterized in that: The reinforcing mechanism (7) comprises a clamping rod (71) arranged between the upper shell plate (4) and the lower shell plate (2); the outer surfaces of the upper shell plate (4) and the lower shell plate (2) on both sides are fixedly connected with clamping blocks (72); and the inner surface of the clamping rod (71) is provided with a clamping groove (73).

3. A lithium battery protection device with temperature monitoring function according to claim 2, characterized in that: The upper and lower ends of the clamping rod (71) are fixedly connected to a transverse plate (711) by means of screws, the outer surface of the clamping rod (71) is provided with a connecting groove (712), and the interior of the connecting groove (712) is fixedly connected to a connecting plate (713) by means of screws.

4. A lithium battery protection device with temperature monitoring function according to claim 3, characterized in that: An aluminum protective tube (8) is sleeved on the outside of the lithium battery body (1) between the lower card slot (3) and the upper card slot (5), and a lower insulating pad (9) is bonded to the upper surface of the horizontal plate (711).

5. The lithium battery protection device with temperature monitoring function according to claim 1, characterized in that: The lower surface of the lower shell plate (2) and the upper surface of the upper shell plate (4) are both provided with a protective shell (10), and the protective shell (10) is fixedly connected to the lower surface of the lower shell plate (2) and the upper surface of the upper shell plate (4) by means of screws and preset screw holes.

6. A lithium battery protection device with temperature monitoring function according to claim 5, characterized in that: The inner surface of the protective shell (10) is bonded with a protective pad (11) at the pole ear of each lithium battery body (1), and the inner surface of the protective shell (10) is bonded with an upper insulating pad (12) above the lower insulating pad (9).

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