A lithium battery with good safety

Abstract

The utility model discloses a lithium battery with good safety relates to lithium battery technical field, including the fixed suit of placing shell on lower housing, and the bottom of placing shell is flush with lower housing, be provided with lithium battery in the placing shell, and the negative pole of placing shell with lithium battery electric connection, the inner wall of lower housing is provided with two arc grooves, the top inner wall of two arc grooves is fixedly installed with the limit rod respectively, the top of lower housing is provided with upper housing, and the positive contact stick on the lithium battery is penetrated with upper housing and is connected with the positive contact stick slidingly, two sliding rods are slidably installed on the upper housing, the bottom of two sliding rods is fixedly installed with the limit clamping plate respectively, and two limit clamping plates are slidably connected with two limit rods respectively, and the compression spring is movably sleeved on the sliding rod.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, and in particular to a lithium battery with good safety. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as positive / negative electrode materials and a non-aqueous electrolyte solution. Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use require very strict environmental conditions. To ensure the stability of lithium-ion batteries, a protective casing is usually installed on the outside of the battery to protect it, thereby enhancing the safety of the lithium-ion battery.

[0003] However, the protective casing of existing lithium batteries is not easy to disassemble, which makes it impossible to disassemble the protective casing in time to inspect and repair the lithium battery when it malfunctions, thus affecting work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a lithium battery with good safety to solve at least one of the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lithium battery with good safety, comprising a placement shell fixedly sleeved on a lower housing, the bottom of the placement shell being flush with the lower housing, a lithium battery disposed inside the placement shell, and the placement shell being electrically connected to the negative electrode of the lithium battery, two arc-shaped grooves being formed on the inner wall of the lower housing, and limiting rods being fixedly installed on the top inner walls of the two arc-shaped grooves respectively, an upper housing being provided at the top of the lower housing, and the upper housing passing through the positive electrode contact rod on the lithium battery and slidably connected to the positive electrode contact rod, two sliding rods being slidably installed on the upper housing, and limiting plates being fixedly installed at the bottom ends of the two sliding rods respectively, and the two limiting plates being slidably connected to the two limiting rods respectively, compression springs being movably sleeved on the sliding rods respectively, and the top ends of the two compression springs being fixedly connected to the upper housing, the bottom ends of the two compression springs being fixedly connected to circular plates fixedly sleeved on the sliding rods respectively, and rotating pressure plates being fixedly installed at the top ends of the two sliding rods.

[0006] Preferably, a plurality of force-bearing springs are fixedly installed on the bottom inner wall of the upper housing, and annular pressure plates are fixedly installed at the bottom ends of the plurality of force-bearing springs.

[0007] Preferably, the lower housing has several heat dissipation vents, and a dustproof cloth is fixedly installed in each of the several heat dissipation vents.

[0008] Preferably, the lithium battery is slidably fitted with a plurality of annular rubber buffer rings, and the plurality of annular rubber buffer rings are fixedly connected to the lower housing.

[0009] Preferably, the upper housing has two through holes, and a linear bearing is fixedly installed in each of the two through holes. The two sliding rods pass through the two linear bearings and are slidably connected to the inner walls of the two linear bearings respectively.

[0010] Preferably, both the compression spring and the force-bearing spring are tin-plated.

[0011] The beneficial effects of this utility model are as follows:

[0012] In this invention, the limiting plate is limited left and right and up and down by the limiting rod and the arc groove, fixing the upper shell to the lower shell to form a complete protective shell to protect the lithium battery and improve its safety. The heat generated by the lithium battery during operation is dissipated to the outside through the heat dissipation vent, and the dustproof cloth prevents external dust from entering the lower shell and adhering to the lithium battery. By first moving the rotating pressure plate downward, the limiting plate moves downward and separates from the limiting rod. Then, by rotating the rotating pressure plate, the limiting plate rotates out of the arc groove. The upper shell can be moved upward to remove it from the lower shell, and the faulty lithium battery can be repaired. The process is simple, fast and efficient. Attached Figure Description

[0013] Figure 1 A schematic diagram of a preferred embodiment of the safe lithium battery provided by this utility model;

[0014] Figure 2 for Figure 1 The enlarged schematic diagram of part A shown below;

[0015] Figure 3 for Figure 1 The assembly diagram showing the placement of the shell and the annular pressure plate is shown.

[0016] Figure 4 A perspective view of a lithium battery with good safety provided by this utility model.

[0017] In the diagram: 1. Lower housing; 2. Housing; 3. Lithium battery; 4. Dustproof cloth; 5. Annular rubber buffer ring; 6. Upper housing; 7. Force-bearing spring; 8. Annular pressure plate; 9. Sliding rod; 10. Compression spring; 11. Circular plate; 13. Arc groove; 14. Limiting rod; 15. Limiting plate; 16. Rotating pressure plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This utility model provides, for example Figure 1-4 The lithium battery shown includes a safe and secure housing 2 fixedly fitted onto a lower housing 1, with the bottom of the housing 2 flush with the lower housing 1. A lithium battery 3 is disposed inside the housing 2, and the housing 2 is electrically connected to the negative electrode of the lithium battery 3. Two arc-shaped grooves 13 are formed on the inner wall of the lower housing 1, and limit rods 14 are fixedly installed on the top inner walls of the two arc-shaped grooves 13 respectively. An upper housing 6 is provided on the top of the lower housing 1, and the upper housing 6 passes through the positive electrode contact rod on the lithium battery 3 and is slidably connected to the positive electrode contact rod. Two sliding rods 9 are slidably installed on the upper housing 6. In order to reduce the friction between the sliding rods 9 and the upper housing 6, thereby reducing the wear of the sliding rods 9 and improving their service life, two through-holes are formed on the upper housing 6. Two through holes are fixedly installed with linear bearings. Two sliding rods 9 pass through the two linear bearings and are slidably connected to the inner walls of the two linear bearings. Limiting plates 15 are fixedly installed at the bottom ends of the two sliding rods 9, and the two limiting plates 15 are slidably connected to the two limiting rods 14. Compression springs 10 are movably sleeved on the sliding rods 9. In order to improve the service life of the compression springs 10 and the force springs 7, the surfaces of the compression springs 10 and the force springs 7 are tin-plated. The top ends of the two compression springs 10 are fixedly connected to the upper housing 6. The bottom ends of the two compression springs 10 are fixedly connected to the circular plates 11 fixedly sleeved on the sliding rods 9. Rotating pressure plates 16 are fixedly installed at the top ends of the two sliding rods 9.

[0020] In order to ensure that the lithium battery 3 is always subjected to a downward compressive force, and thus to ensure that the lithium battery 3 is always stably installed in the housing 2 without shaking, several force springs 7 are fixedly installed on the bottom inner wall of the upper housing 6, and annular pressure plates 8 are fixedly installed at the bottom ends of the force springs 7.

[0021] In order to dissipate the heat generated by the lithium battery 3 during operation to the outside, a dustproof cloth 4 is used to prevent dust from entering the lower housing 1 and adhering to the lithium battery 3. Several heat dissipation holes are provided on the lower housing 1, and a dustproof cloth 4 is fixedly installed in each of the several heat dissipation holes.

[0022] In order to buffer the impact force on the lithium battery 3 and prevent the impact force from being directly transmitted to the lithium battery 3 when the external impact force hits the lower housing 1, thus affecting the service life of the lithium battery 3, several annular rubber buffer rings 5 ​​are slidably sleeved on the lithium battery 3, and the several annular rubber buffer rings 5 ​​are all fixedly connected to the lower housing 1.

[0023] The working principle of the safe lithium battery provided by this utility model is as follows: In the initial state, the compression spring 10 is in a stretched state, and the force spring 7 is in a compressed state. The limiting rod 14 and the arc groove 13 limit the limiting plate 15 to the left and right and up and down, thereby fixing the upper shell 6 to the lower shell 1. The upper shell 6 and the lower shell 1 form a complete protective shell to protect the lithium battery 3 and improve the safety of the lithium battery 3. The heat generated by the lithium battery 3 during operation is dissipated to the outside through the heat dissipation vent. The dustproof cloth 4 prevents external dust from entering the lower shell 1 and adhering to the lithium battery 3, which would affect the lithium battery. The lifespan of battery 3 is extended. When the lithium battery is needed, the power of the lithium battery 3 is transmitted to the outside through the connection of the external wire to the housing 2 and the positive contact rod. When the lithium battery 3 malfunctions and needs to be repaired, first move the rotating pressure plate 16 downward to drive the limiting plate 15 downward to separate it from the limiting rod 14. Then rotate the rotating pressure plate 16 to drive the sliding rod 9 and the limiting plate 15 to rotate, so that the limiting plate 15 rotates out of the arc groove 13. Move the upper housing 6 upward to remove it from the lower housing 1. The malfunctioning lithium battery can then be repaired. The process is simple, fast and efficient.

[0024] Compared with related technologies, the lithium battery with good safety provided by this utility model has the following beneficial effects:

[0025] This utility model provides a lithium battery with good safety. The limiting plate 15 is limited left and right and up and down by the limiting rod 14 and the arc groove 13, and the upper shell 6 is fixed on the lower shell 1 to form a complete protective shell to protect the lithium battery 3 and improve the safety of the lithium battery 3. The heat generated by the lithium battery 3 during operation is dissipated to the outside through the heat dissipation vent. The dustproof cloth 4 prevents the outside dust from entering the lower shell 1 and adhering to the lithium battery 3. By first moving the rotating pressure plate 16 downward, the limiting plate 15 is moved downward and separated from the limiting rod 14. Then, the rotating pressure plate 16 is rotated to make the limiting plate 15 rotate out of the arc groove 13. The upper shell 6 can be removed from the lower shell 1 by moving upward. The faulty lithium battery 3 can then be repaired. The process is simple, fast and efficient.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lithium battery with good safety features, comprising a placement shell fixedly sleeved on a lower housing, wherein the bottom of the placement shell is flush with the lower housing, characterized in that: A lithium battery is disposed inside the placement shell, and the placement shell is electrically connected to the negative electrode of the lithium battery. Two arc-shaped grooves are formed on the inner wall of the lower shell, and limit rods are fixedly installed on the top inner wall of the two arc-shaped grooves respectively. An upper shell is provided on the top of the lower shell, and the upper shell passes through the positive electrode contact rod on the lithium battery and is slidably connected to the positive electrode contact rod. Two sliding rods are slidably installed on the upper shell, and limit plates are fixedly installed at the bottom ends of the two sliding rods respectively, and the two limit plates are slidably connected to the two limit rods respectively. Compression springs are movably sleeved on the sliding rods, and the top ends of the two compression springs are fixedly connected to the upper shell. The bottom ends of the two compression springs are fixedly connected to the circular plates fixedly sleeved on the sliding rods respectively. Rotating pressure plates are fixedly installed at the top ends of the two sliding rods.

2. The lithium battery with good safety according to claim 1, characterized in that: Several force-bearing springs are fixedly installed on the bottom inner wall of the upper housing, and annular pressure plates are fixedly installed at the bottom ends of the force-bearing springs.

3. A lithium battery with good safety according to claim 2, characterized in that: The lower housing has several heat dissipation vents, and each of the heat dissipation vents is fixedly installed with a dustproof cloth.

4. A lithium battery with good safety according to claim 3, characterized in that: The lithium battery is fitted with several annular rubber buffer rings, and each of the annular rubber buffer rings is fixedly connected to the lower housing.

5. A lithium battery with good safety according to claim 4, characterized in that: The upper housing has two through holes, and linear bearings are fixedly installed in the two through holes respectively. The two sliding rods pass through the two linear bearings respectively and are slidably connected to the inner walls of the two linear bearings respectively.

6. A lithium battery with good safety according to claim 5, characterized in that: Both the compression spring and the force-bearing spring are tin-plated.

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