Safety protection cover for battery shell

Abstract

The utility model belongs to the technical field of battery shells, and specifically relates to a safety protection cover for a battery shell, comprising a battery shell body, the upper end of the battery shell body contacts a shell cover body, a semiconductor cooling sheet is slidably connected inside the shell cover body, the heat dissipation end of the semiconductor cooling sheet is located outside the shell cover body, the cooling end of the semiconductor cooling sheet is located inside the shell cover body, a clamping hole is opened on the surface of the semiconductor cooling sheet, the shell cover body is slidably connected to a top plate, and a clamping ball is fixedly connected to the oblique end of the top plate. The utility model can limit the semiconductor cooling sheet by pushing the semiconductor cooling sheet to contact the shell cover body under the action of the clamping hole, the clamping ball, the elastic sheet and other structures, so as to facilitate the rapid installation and use by the operators, and the heat dissipation of the battery can be processed under the action of the semiconductor cooling sheet to avoid safety problems caused by overheating of the battery.

Description

Technical Field

[0001] The utility model relates to the technical field of battery shells, in particular to a safety protection cover for a battery shell. Background Art

[0002] As we all know, the safety protection cover of the battery shell is a device used to protect the battery shell, which is designed to improve the safety and protection of the battery. It is usually made of high temperature resistant and corrosion resistant materials such as metal or special plastic materials.

[0003] The utility model patent with announcement number CN205488262U discloses a battery shell cover, including a cover body, a left support block and a right support block, wherein a positive electrode connection block and a negative electrode support block are respectively arranged on the left and right sides of the cover body, and a left support block and a right support block are respectively arranged on both sides of the upper surface of the cover body inside the two support blocks, the upper end surfaces of the left support block and the right support block are higher than the upper end surface of the electrode block, and sliding baffles are respectively arranged on the left and right support blocks, and sliding grooves are arranged on the support blocks where the sliding baffles are located, and the upper surface of the sliding baffles is lower than the upper surface of the support blocks, and grooves are arranged on the surface of the sliding baffles, and the positions of the left and right sliding baffles correspond to the positions of the left and right sliding baffles, and the height of the lower end surfaces of the left and right sliding baffles is higher than the height of the connection block, and two handles are symmetrically arranged on the upper end of the cover body between the left support block and the right support block. The patent has a simple and reasonable structure, avoids the problem of damaging the connection blocks when the batteries are stacked in the traditional device, and has strong practicality.

[0004] However, the existing safety protection cover of the battery shell still has certain shortcomings: first, most of the existing safety protection covers of the battery shell simply use the thermal conductivity of their own materials to conduct heat and dissipate heat for the battery. Due to the low efficiency of natural conduction, the heat dissipation effect of the safety protection cover is poor, resulting in a greater potential safety hazard of heat dissipation of the battery;

[0005] Secondly, the existing safety protection covers of battery shells are mostly fixed between the shell cover and the battery shell by threaded engagement. Due to the influence of factors such as accidental impact and explosion impact, the shell cover may fly off, thereby causing accidental injury. Utility Model Content

[0006] The utility model aims to provide a safety protection cover for a battery shell, which solves the problem that the existing safety protection covers for battery shells mostly use the thermal conductivity of their own materials to conduct heat and dissipate heat for the battery, and the efficiency of natural conduction is low, so that the heat dissipation effect of the safety protection cover is poor, resulting in a greater potential safety hazard in the heat dissipation of the battery; and solves the problem that the existing safety protection covers for battery shells mostly use a threaded engagement method to fix the shell cover and the battery shell, and the shell cover may fly apart due to the influence of factors such as accidental impact and explosion impact, thereby causing accidental injury.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safety protective cover for a battery shell, comprising a battery shell body, the upper end of the battery shell body contacts a shell cover body, a semiconductor refrigeration plate is slidably connected to the inside of the shell cover body, the heat dissipation end of the semiconductor refrigeration plate is located outside the shell cover body, and the cooling end of the semiconductor refrigeration plate is located inside the shell cover body, a clamping hole is opened on the surface of the semiconductor refrigeration plate, a top plate is slidably connected to the inside of the shell cover body, a clamping ball is fixedly connected to the oblique end of the top plate, the clamping ball is slidably connected to the clamping hole, an elastic sheet is fixedly connected to the end face of the top plate away from the clamping ball, and the other end of the elastic sheet is fixedly connected to the shell cover body, and a protective mechanism is provided on both the battery shell body and the shell cover body.

[0008] Preferably, there are a plurality of the clamping holes, which are evenly distributed on the semiconductor refrigeration plate. The clamping holes are arranged to facilitate clamping with the clamping ball.

[0009] Preferably, two semiconductor refrigeration sheets are provided, and the two semiconductor refrigeration sheets are symmetrically distributed on the shell cover body. Through the provision of the semiconductor refrigeration sheets, the battery can be cooled and cooled.

[0010] Preferably, the protective mechanism includes a threaded rod, the upper end of the battery shell body is fixedly connected with the threaded rod, the threaded rod is slidably connected to the shell cover body, the outer side of the threaded rod is connected with a fixed disk through a thread, a spring is arranged on the outer side of the threaded rod, a friction hole is opened on the surface of the threaded rod, the inside of the shell cover body is connected with a connecting disk through a thread, the inside of the shell cover body is slidably connected with a friction rod, the friction rod is slidably connected to the friction hole, an elastic member is bonded to one end of the friction rod away from the threaded rod, and the other end of the elastic member is bonded to the connecting disk. When the shell cover body is impacted by external force, the shell cover The main body slides along the surface of the threaded rod, and the spring is deformed to release the impact force. In this process, the inner wall of the friction hole squeezes the friction rod, and the friction rod slides along the inner wall of the shell cover body. Under the action of the connecting disk, the elastic part is deformed, and finally the friction rod is separated from the friction hole. Under the action of force, the friction rod slides along the surface of the threaded rod. When the friction rod slides into the next friction hole, the elastic part restores its deformation to push the friction rod into the friction hole, and this cycle repeats. Under the action of the friction rod, elastic part, friction hole and other structures, the excess deformation stress generated by the spring can be frictionally consumed to avoid the problem of excess shaking of the spring.

[0011] Preferably, a plurality of the friction holes are provided, and the plurality of friction holes are evenly distributed on the threaded rod. The provision of the friction holes facilitates the use of the friction rod to reduce friction loss.

[0012] Preferably, one end of the spring contacts the shell cover body, and the other end of the spring contacts the fixed disk. By setting the spring, the shell cover body can be tightened.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model can limit the semiconductor refrigeration sheet by pushing the semiconductor refrigeration sheet into contact with the shell cover body under the action of the clamping hole, the clamping ball, the elastic sheet and other structures, so as to facilitate the rapid installation and use by the operators. Under the action of the semiconductor refrigeration sheet, the battery can be cooled to avoid safety problems caused by overheating of the battery.

[0015] 2. The utility model can release the stress of the shell cover body that is impacted and broken through the deformation effect of the spring, thereby avoiding the problem of injury to people by the shell cover body. Under the action of the friction hole, friction rod and other structures, the excess deformation stress generated by the spring can be frictionally consumed, thereby avoiding the problem of excess shaking of the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0017] Figure 2 For the utility model Figure 1 A top sectional view of

[0018] Figure 3 For the utility model Figure 1 A partially cutaway stereogram of

[0019] Figure 4 For the utility model Figure 2 A magnified image of point A;

[0020] Figure 5 For the utility model Figure 3 Enlarged view of point B.

[0021] In the figure: 1. battery shell body; 2. shell cover body; 3. semiconductor cooling plate; 4. clamping hole; 5. top plate; 6. clamping ball; 7. elastic sheet; 8. protective mechanism; 81. threaded rod; 82. fixing plate; 83. spring; 84. friction hole; 85. connecting plate; 86. friction rod; 87. elastic member. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 A safety protective cover for a battery shell comprises a battery shell body 1, the upper end of the battery shell body 1 contacts a shell cover body 2, a semiconductor refrigeration sheet 3 is slidably connected inside the shell cover body 2, two semiconductor refrigeration sheets 3 are provided, and the two semiconductor refrigeration sheets 3 are symmetrically distributed on the shell cover body 2. Through the provision of the semiconductor refrigeration sheets 3, the battery can be cooled and cooled. The heat dissipation end of the semiconductor refrigeration sheet 3 is located outside the shell cover body 2, and the cooling end of the semiconductor refrigeration sheet 3 is located inside the shell cover body 2. A card hole 4 is opened on the surface of the semiconductor refrigeration sheet 3, and a plurality of card holes 4 are provided. The plurality of card holes 4 are evenly distributed on the semiconductor refrigeration sheet 3. Through the provision of the card holes 4, it is convenient to cooperate with the card ball 6 for card connection and use. A top plate 5 is slidably connected inside the shell cover body 2, and the oblique end of the top plate 5 is fixedly connected A card ball 6 is connected, and the card ball 6 is slidably connected to the card hole 4. An elastic sheet 7 is fixedly connected to the end face of the top plate 5 away from the card ball 6. The other end of the elastic sheet 7 is fixedly connected to the shell cover body 2. The semiconductor refrigeration sheet 3 is pushed into the shell cover body 2. During this process, the card ball 6 moves under the extrusion of the semiconductor refrigeration sheet 3 to push the top plate 5 to move, and then push the elastic sheet 7 to deform, and finally the card ball 6 contacts the surface of the semiconductor refrigeration sheet 3. Under the action of force, the card ball 6 slides along the surface of the semiconductor refrigeration sheet 3. When the card ball 6 slides into the card hole 4, the elastic sheet 7 resumes its deformation to push the card ball 6 to insert into the card hole 4, and the semiconductor refrigeration sheet 3 is limited for insertion, which is convenient for the operator to quickly install and use. Under the action of the semiconductor refrigeration sheet 3, the battery can be cooled and cooled.

[0024] Please refer to the figure Figure 1 , Figure 2 , Figure 3 , Figure 5The battery shell body 1 and the shell cover body 2 are jointly provided with a protective mechanism 8, and the protective mechanism 8 includes a threaded rod 81, and the upper end of the battery shell body 1 is fixedly connected with the threaded rod 81, and the threaded rod 81 is slidably connected with the shell cover body 2. The outer side of the threaded rod 81 is threadedly connected with a fixed disk 82, and the outer side of the threaded rod 81 is provided with a spring 83, one end of the spring 83 contacts the shell cover body 2, and the other end of the spring 83 contacts the fixed disk 82. Through the setting of the spring 83, the shell cover body 2 can be tightened. A friction hole 84 is opened on the surface of the threaded rod 81, and a plurality of friction holes 84 are provided. The plurality of friction holes 84 are evenly distributed on the threaded rod 81. Through the setting of the friction holes 84, it is convenient to cooperate with the friction rod 86 for friction loss. The inside of the shell cover body 2 is threadedly connected with a connecting disk 85, and the inside of the shell cover body 2 is slidably connected with a friction rod 86, and the friction rod 86 is slidably connected with the friction hole 84. An elastic member 87 is bonded to one end of the friction rod 86 away from the threaded rod 81, and the other end of the elastic member 87 is bonded to the connecting plate 85. When the shell cover body 2 is impacted by external force, the shell cover body 2 slides along the surface of the threaded rod 81, and the spring 83 is deformed to release the impact force. In this process, the inner wall of the friction hole 84 squeezes the friction rod 86, and the friction rod 86 slides along the inner wall of the shell cover body 2. Under the action of the connecting plate 85, the elastic member 87 is deformed, and finally the friction rod 86 is separated from the friction hole 84. Under the action of force, the friction rod 86 slides along the surface of the threaded rod 81. When the friction rod 86 slides into the next friction hole 84, the elastic member 87 restores its deformation to push the friction rod 86 into the friction hole 84, and this cycle repeats. Under the action of the friction rod 86, the elastic member 87, the friction hole 84 and other structures, the excess deformation stress generated by the spring 83 can be frictionally consumed to avoid the problem of excess shaking of the spring 83.

[0025] The specific implementation process of the utility model is as follows: when the safety protection cover of the battery shell needs to be used, the semiconductor cooling sheet 3 is pushed to be inserted into the shell cover body 2. During this process, the card ball 6 moves under the extrusion of the semiconductor cooling sheet 3 to push the top plate 5 to move, thereby pushing the elastic sheet 7 to deform, and finally the card ball 6 contacts the surface of the semiconductor cooling sheet 3. Under the action of force, the card ball 6 slides along the surface of the semiconductor cooling sheet 3. When the card ball 6 slides into the card hole 4, the elastic sheet 7 recovers its deformation to push the card ball 6 into the card hole 4, and the semiconductor cooling sheet 3 is plugged and limited, which is convenient for the operator to quickly install and use. Under the action of the semiconductor cooling sheet 3, the battery can be cooled and cooled;

[0026] By pushing the shell cover body 2 to be sleeved on the outside of the threaded rod 81, and making the shell cover body 2 contact with the battery shell body 1, under the action of force, the friction rod 86 slides into the friction hole 84, and then the spring 83 is sleeved on the outside of the threaded rod 81, so that the lower end of the spring 83 contacts with the shell cover body 2. Under the relationship of the threaded connection, the fixing plate 82 can be fixed, and the upper end of the spring 83 contacts with the fixing plate 82. Under the deformation of the spring 83, the shell cover body 2 can be tightened;

[0027] When the shell cover body 2 is impacted by external force, the shell cover body 2 slides along the surface of the threaded rod 81, and the spring 83 is deformed to release the impact force. In this process, the inner wall of the friction hole 84 squeezes the friction rod 86, and the friction rod 86 slides along the inner wall of the shell cover body 2. Under the action of the connecting plate 85, the elastic member 87 is deformed, and finally the friction rod 86 is separated from the friction hole 84. Under the action of the force, the friction rod 86 slides along the surface of the threaded rod 81. When the friction rod 86 slides into the next friction hole 84, the elastic member 87 restores its deformation to push the friction rod 86 into the friction hole 84, and the cycle repeats. Under the action of the friction rod 86, the elastic member 87, the friction hole 84 and other structures, the excess deformation stress generated by the spring 83 can be frictionally consumed to avoid the problem of excess shaking of the spring 83.

[0028] Although the 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 safety protection cover for a battery case, comprising a battery case body (1), characterized in that: The upper end of the battery shell body (1) contacts the shell cover body (2), and a semiconductor cooling plate (3) is slidably connected inside the shell cover body (2). The heat dissipation end of the semiconductor cooling plate (3) is located outside the shell cover body (2), and the cooling end of the semiconductor cooling plate (3) is located inside the shell cover body (2). A clamping hole (4) is provided on the surface of the semiconductor cooling plate (3). A top plate (5) is slidably connected inside the shell cover body (2), and a clamping ball (6) is fixedly connected at the oblique end of the top plate (5). The clamping ball (6) is slidably connected to the clamping hole (4). An elastic sheet (7) is fixedly connected to the end face of the top plate (5) away from the clamping ball (6), and the other end of the elastic sheet (7) is fixedly connected to the shell cover body (2). A protective mechanism (8) is provided on the battery shell body (1) and the shell cover body (2).

2. The safety protection cover of a battery shell according to claim 1, characterized in that: A plurality of the clamping holes (4) are provided, and the plurality of the clamping holes (4) are evenly distributed on the semiconductor cooling sheet (3).

3. The safety protection cover of a battery shell according to claim 1, characterized in that: Two semiconductor refrigeration sheets (3) are provided, and the two semiconductor refrigeration sheets (3) are symmetrically distributed on the shell cover body (2).

4. The safety protection cover of a battery shell according to claim 1, characterized in that: The protective mechanism (8) comprises a threaded rod (81), the upper end of the battery shell body (1) is fixedly connected with the threaded rod (81), the threaded rod (81) is slidably connected with the shell cover body (2), the outer side of the threaded rod (81) is connected with a fixed disk (82) by threading, the outer side of the threaded rod (81) is provided with a spring (83), the surface of the threaded rod (81) is provided with a friction hole (84), the inside of the shell cover body (2) is connected with a connecting disk (85) by threading, the inside of the shell cover body (2) is slidably connected with a friction rod (86), the friction rod (86) is slidably connected with the friction hole (84), the end of the friction rod (86) away from the threaded rod (81) is bonded with an elastic member (87), and the other end of the elastic member (87) is bonded with the connecting disk (85).

5. A safety protection cover for a battery shell according to claim 4, characterized in that: A plurality of the friction holes (84) are provided, and the plurality of the friction holes (84) are evenly distributed on the threaded rod (81).

6. The safety protection cover for a battery shell according to claim 4, characterized in that: One end of the spring (83) contacts the housing cover body (2), and the other end of the spring (83) contacts the fixing plate (82).

Images