Lithium battery with safety protection performance for electric tool

Abstract

The utility model provides a lithium battery with safety protection performance for an electric tool, which relates to the technical field of lithium batteries and comprises a main body mechanism, a damping mechanism is fixedly mounted on the outer surface wall of the main body mechanism, and the main body mechanism comprises a protection box. According to the lithium battery protection device disclosed by the utility model, under the action of the main body mechanism, when the exhaust fan works, hot air in the protection box is exhausted, and cold air enters the protection box through the filter plate, so that the temperature of a lithium battery body is prevented from continuously rising during working, the temperature of the lithium battery in an operation process is effectively controlled, and an overheating phenomenon of the battery is avoided; the filter plate can prevent external pollutants such as dust from entering the protection box and accumulating on the surface of the lithium battery body, so that the heat dissipation effect of the lithium battery body is reduced, short circuit is caused and the like, after the dehumidifier is started, water vapor in the protection box can be effectively removed, the water vapor is prevented from corroding the lithium battery body, and the service life of the lithium battery body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a lithium battery for electric tools with safety protection performance. Background Art

[0002] Lithium battery is a rechargeable battery whose working principle mainly relies on the movement of lithium ions between the positive and negative electrodes. Lithium-ion battery has the advantages of high storage energy density, high rated voltage, high power tolerance, low self-discharge rate, light weight, strong adaptability to high and low temperatures, and green environmental protection. This makes it widely used in electric vehicles, power tools, and mobile power sources, such as providing power for computers, office equipment, power tools, etc.

[0003] Existing lithium batteries will generate heat due to internal electrochemical reactions during use. When the heat continues to accumulate, it is easy for the battery to cause a fire or even explosion, posing a serious safety threat to users and equipment. At the same time, external water vapor can easily enter the lithium battery, causing a short circuit or corrosion inside the battery, reducing the service life and safety of the lithium battery. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the service life and safety of lithium batteries are greatly reduced due to heat accumulation and water vapor corrosion when the above-mentioned equipment is in use, and thus a lithium battery for electric tools with safety protection performance is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a lithium battery for electric tools with safety protection performance, comprising a main body mechanism, the outer wall of which is fixedly mounted with a shock absorbing mechanism;

[0006] The main structure includes a protection box, a dehumidifier is fixedly installed on the bottom of the inner wall of the protection box, the output end of the dehumidifier is fixedly connected to a drain pipe, and the outer wall of the drain pipe is movably inserted into the interior of the protection box, an exhaust fan is fixedly installed on the bottom of the inner wall of the protection box, the output end of the exhaust fan is fixedly connected to an outlet pipe, and the outer wall of the outlet pipe is movably inserted into the interior of the protection box, the input end of the exhaust fan is fixedly connected to an air inlet pipe, and a group of electric telescopic rods are fixedly installed on the bottom of the inner wall of the protection box.

[0007] Preferably, a mounting plate is fixedly installed between the telescopic ends of a group of the electric telescopic rods, and the outer wall of the mounting plate is movably inserted into the inner wall of the protection box, and a group of connecting columns are fixedly installed on the top of the mounting plate.

[0008] Preferably, a filter plate is fixedly sleeved between the outer walls of a group of the connecting columns, and the outer wall of the filter plate is movably inserted into the inner wall of the protection box, and two circular holes are opened on the top of the filter plate.

[0009] Preferably, a top plate is fixedly installed between the tops of a group of the connecting columns, and the outer wall of the top plate is movably inserted into the inner wall of the protection box, and a group of sliding grooves are opened on the top of the mounting plate.

[0010] Preferably, a group of electric sliders are movably embedded in the inner surface walls of a group of the slide grooves, a group of clamping plates are fixedly installed on the top of a group of the electric sliders, the outer surface walls of a group of the clamping plates are in contact with the lithium battery body, and the bottom of the lithium battery body is in contact with the top of the mounting plate.

[0011] Preferably, the shock absorbing mechanism includes six groups of dampers, baffles are fixedly installed between the telescopic ends of the six groups of dampers, and a group of springs are fixedly installed on one side of the outer walls of the six baffles.

[0012] Preferably, the outer wall of the protection box is fixedly connected to the outer walls of the six groups of dampers, and the outer wall of the protection box is fixedly connected to the outer walls of the six groups of springs.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, under the action of the main mechanism, the exhaust fan will discharge the hot air inside the protection box when it is working, and the cold air will enter the protection box through the filter plate, so as to prevent the temperature of the lithium battery body from continuously rising during operation, effectively control the temperature of the lithium battery during operation, and avoid overheating of the battery. The filter plate can prevent pollutants such as external dust from entering the protection box and accumulating on the surface of the lithium battery body, resulting in reduced heat dissipation effect of the lithium battery body and causing problems such as short circuit. After the dehumidifier is started, the water vapor inside the protection box can be effectively removed to prevent water vapor from corroding the lithium battery body and extend the service life of the lithium battery body.

[0015] 2. In the utility model, the damper and the spring cooperate with each other under the action of the shock absorbing mechanism, which can reduce the degree of damage to the internal structure of the battery caused by the impact force, improve the safety of the lithium battery, and prevent the battery from moving under the action of external force, affecting the normal operation of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a main structural stereogram of a lithium battery for electric tools with safety protection performance;

[0017] Figure 2 The utility model provides a cross-sectional plan view of the main mechanism of a lithium battery for electric tools with safety protection performance;

[0018] Figure 3The utility model provides a top view of the main mechanism of a lithium battery for electric tools with safety protection performance;

[0019] Figure 4 The utility model provides a schematic diagram of the main mechanism of a lithium battery for electric tools with safety protection performance;

[0020] Figure 5 The utility model provides a top-down stereoscopic diagram of a shock absorbing mechanism in a lithium battery for an electric tool with safety protection performance.

[0021] Legend:

[0022] 1. Main body; 101. Protection box; 102. Dehumidifier; 103. Drain pipe; 104. Exhaust fan; 105. Exhaust pipe; 106. Inlet pipe; 107. Electric telescopic rod; 108. Mounting plate; 109. Connecting column; 110. Filter plate; 111. Round hole; 112. Top plate; 113. Slide; 114. Electric slider; 115. Clamping plate; 116. Lithium battery body;

[0023] 2. Shock absorbing mechanism; 201. Damper; 202. Baffle; 203. Spring. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0026] Embodiment 1, as Figure 1-Figure 5 As shown, the utility model provides a lithium battery for electric tools with safety protection performance, including a main body mechanism 1, and a shock absorbing mechanism 2 is fixedly installed on the outer wall of the main body mechanism 1;

[0027] The main body mechanism 1 includes a protection box 101, a dehumidifier 102 is fixedly installed at the bottom of the inner wall of the protection box 101, the output end of the dehumidifier 102 is fixedly connected to a drain pipe 103, and the outer wall of the drain pipe 103 is movably inserted into the interior of the protection box 101, an exhaust fan 104 is fixedly installed at the bottom of the inner wall of the protection box 101, the output end of the exhaust fan 104 is fixedly connected to an air outlet pipe 105, and the outer wall of the air outlet pipe 105 is movably inserted into the interior of the protection box 101, the input end of the exhaust fan 104 is fixedly connected to an air inlet pipe 106, a group of electric telescopic rods 107 are fixedly installed at the bottom of the inner wall of the protection box 101, a mounting plate 108 is fixedly installed between the telescopic ends of the group of electric telescopic rods 107, and the outer wall of the mounting plate 108 is movably inserted into the inner wall of the protection box 101, and the mounting plate 1 A group of connecting columns 109 are fixedly installed on the top of 08, a filter plate 110 is fixedly sleeved between the outer walls of a group of connecting columns 109, and the outer wall of the filter plate 110 is movably inserted into the inner wall of the protection box 101, and two circular holes 111 are opened on the top of the filter plate 110, a top plate 112 is fixedly installed between the tops of a group of connecting columns 109, and the outer wall of the top plate 112 is movably inserted into the inner wall of the protection box 101, a group of slide grooves 113 are opened on the top of the mounting plate 108, a group of electric sliders 114 are movably embedded in the inner walls of a group of slide grooves 113, a group of clamping plates 115 are fixedly installed on the top of a group of electric sliders 114, a lithium battery body 116 is in contact with the outer walls of a group of clamping plates 115, and the bottom of the lithium battery body 116 is in contact with the top of the mounting plate 108.

[0028] The effect achieved by the entire embodiment 1 is that when the lithium battery body 116 is in use, a set of electric telescopic rods 107 starts to start, and the mounting plate 108 and the lithium battery body 116 rise together. When the lithium battery body 116 is exposed from the inside of the protective box 101, the user can connect the external wires to it through the two round holes 111, and then a set of electric telescopic rods 107 drives the lithium battery body 116 to descend, so that the filter plate 110 is parallel to the top of the protective box 101. When the lithium battery body 116 is in use, the exhaust fan 104 will discharge the hot air inside the protective box 101 through the exhaust pipe 105, and the external cold air will enter the protective box 101 through the filter plate 110. The temperature of the lithium battery body 116 is reduced by accelerating the air flow to prevent the internal temperature of the battery from being too high, thereby causing safety risks such as thermal runaway, fire or even explosion of the battery. After the dehumidifier 102 is started, the water vapor inside the protective box 101 will be condensed into water and discharged through the drain pipe 103 to prevent water vapor from corroding the lithium battery body 116 and reducing the service life of the lithium battery body 116.

[0029] Embodiment 2, as Figure 2-Figure 5As shown, the shock absorbing mechanism 2 includes six groups of dampers 201, baffles 202 are fixedly installed between the telescopic ends of the six groups of dampers 201, a group of springs 203 are fixedly installed on one side of the outer walls of the six baffles 202, the outer wall of the protective box 101 is fixedly connected to the outer wall of the six groups of dampers 201, and the outer wall of the protective box 101 is fixedly connected to the outer wall of the six groups of springs 203.

[0030] The effect achieved by the entire embodiment 2 is that when the baffle 202 is subjected to external force, the baffle 202 starts to move, squeezing a group of dampers 201 and springs 203. The group of dampers 201 and springs 203 will absorb most of the kinetic energy by shrinking, reducing the damage to the lithium battery when it is subjected to external impact or collision, thereby extending the service life of the lithium battery.

[0031] Working principle: When the lithium battery body 116 is not needed, the protective box 101 is in a sealed state, which can effectively prevent external dust and water vapor from damaging the lithium battery body 116. When the lithium battery body 116 is needed, the user can start the battery, and then a group of electric telescopic rods 107 inside the protective box 101 start to start, driving the top mounting plate 108 to start rising, and the mounting plate 108 will drive the top lithium battery body 116 and related devices to rise together, so that the lithium battery body 116 is exposed on the surface of the protective box 101. At this time, the user can pass the external wires through the two round holes 111 and connect them to the lithium battery body 116. After the wires are connected, a group of electric telescopic rods 107 will drive the lithium battery body 116 to descend, so that the filter plate 11 0 is parallel to the top of the protection box 101. When the lithium battery body 116 is in use, the exhaust fan 104 will continuously inhale the hot air inside the protection box 101 through the air inlet pipe 106, and discharge the hot air to the outside through the air outlet pipe 105. At this time, the cold air from the outside will enter the protection box 101 through the filter plate 110 under the action of atmospheric pressure, thereby reducing the temperature of the lithium battery body 116. After the dehumidifier 102 is started, the water vapor inside the protection box 101 will be sucked into the device, and condensed into water and discharged through the drain pipe 103. When the protection box 101 is impacted by the outside, the baffle 202 will move under the action of the force, squeezing a group of dampers 201 and springs 203 to prevent the lithium battery body 116 from being displaced or even damaged due to vibration.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A lithium battery for electric tools with safety protection performance, comprising a main body (1), characterized in that: A shock absorbing mechanism (2) is fixedly mounted on the outer wall of the main body mechanism (1); The main body mechanism (1) comprises a protection box (101), a dehumidifier (102) is fixedly mounted on the bottom of the inner wall of the protection box (101), the output end of the dehumidifier (102) is fixedly connected to a drain pipe (103), and the outer wall of the drain pipe (103) is movably inserted into the interior of the protection box (101), an exhaust fan (104) is fixedly mounted on the bottom of the inner wall of the protection box (101), the output end of the exhaust fan (104) is fixedly connected to an air outlet pipe (105), and the outer wall of the air outlet pipe (105) is movably inserted into the interior of the protection box (101), the input end of the exhaust fan (104) is fixedly connected to an air inlet pipe (106), and a group of electric telescopic rods (107) are fixedly mounted on the bottom of the inner wall of the protection box (101).

2. A lithium battery for electric tools with safety protection performance according to claim 1, characterized in that: A mounting plate (108) is fixedly installed between the telescopic ends of a group of electric telescopic rods (107), and the outer wall of the mounting plate (108) is movably inserted into the inner wall of the protection box (101), and a group of connecting columns (109) is fixedly installed on the top of the mounting plate (108).

3. A lithium battery for electric tools with safety protection performance according to claim 2, characterized in that: A filter plate (110) is fixedly sleeved between the outer walls of a group of the connecting columns (109), and the outer wall of the filter plate (110) is movably inserted into the inner wall of the protection box (101), and two circular holes (111) are opened on the top of the filter plate (110).

4. A lithium battery for electric tools with safety protection performance according to claim 3, characterized in that: A top plate (112) is fixedly installed between the tops of a group of the connecting columns (109), and the outer wall of the top plate (112) is movably inserted into the inner wall of the protection box (101), and a group of sliding grooves (113) are opened on the top of the installation plate (108).

5. A lithium battery for electric tools with safety protection performance according to claim 4, characterized in that: A group of electric sliders (114) are movably embedded in the inner surface wall of a group of the slide grooves (113); a group of clamping plates (115) are fixedly installed on the top of a group of the electric sliders (114); a lithium battery body (116) is in contact between the outer surface walls of a group of the clamping plates (115), and the bottom of the lithium battery body (116) is in contact with the top of the mounting plate (108).

6. A lithium battery for electric tools with safety protection performance according to claim 5, characterized in that: The shock absorbing mechanism (2) comprises six groups of dampers (201), baffles (202) are fixedly mounted between the telescopic ends of the six groups of dampers (201), and a group of springs (203) are fixedly mounted on one side of the outer walls of the six baffles (202).

7. A lithium battery for electric tools with safety protection performance according to claim 6, characterized in that: The outer wall of the protection box (101) is fixedly connected to the outer walls of the six groups of dampers (201), and the outer wall of the protection box (101) is fixedly connected to the outer walls of the six groups of springs (203).

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