A lithium battery protective shell

Abstract

The utility model discloses a lithium battery protection shell, including a shell, the left and right ends of the bottom of the shell are symmetrically fixedly connected with supporting feet, the inner lower end of the shell is slidably connected with a support plate, the left and right ends of the top of the support plate are symmetrically fixedly connected with a limit plate, a lithium battery is arranged between the two limit plates, the four corners of the bottom of the support plate are symmetrically fixedly connected with a first damping spring, the top of the shell is fixedly connected with a top cover by bolts, the two ends of the top of the top cover are symmetrically provided with wire holes, the middle part of the lower surface of the top cover is fixedly connected with a concave plate, and the inner lower end of the concave plate is slidably connected with a clamping plate. The lithium battery protection shell can realize the fixed limit of the lithium battery through the mutual cooperation of the support plate, the first damping spring, the limit plate, the clamping plate, the concave plate, and the second damping spring, and can also perform buffering and shock reduction, thereby reducing the impact of bumps on the lithium battery.

Description

Technical Field

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

[0002] Lithium battery is a primary battery that uses lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. It is different from rechargeable lithium-ion batteries and lithium-ion polymer batteries. As an energy battery with high reaction efficiency, strong safety and small size, lithium battery is becoming more and more widely used.

[0003] At present, new energy batteries are installed in electric vehicles or new energy vehicles. New energy batteries are generally installed in a protective shell, but most of the existing protective shells are sealed, so the heat dissipation performance is poor, which affects the heat dissipation of the new energy batteries, and further reduces the service life of the new energy batteries. There are also some new energy battery shells that can dissipate heat, but heat dissipation will have heat dissipation slots, which make it easy for dust to enter. In addition, the existing new energy batteries only rely on the shock absorption function of the electric vehicle itself for shock absorption, and the protective shell generally does not have a shock absorption function, so the shock absorption performance is poor, and bumps will cause an impact.

[0004] A lithium battery installation box is disclosed in the Chinese utility model patent application No.: 201911030707.6. The device includes a shell and a cover body, characterized in that a storage space for placing lithium batteries is provided in the shell, the cover body is covered on the shell, partitions are provided on both sides of the storage space, the partitions divide the storage space into an intermediate space and two side spaces, the lithium battery is placed in the intermediate space, a heat conducting plate is provided in the side space, and the shell is provided with vents on both sides of the side space. The lithium battery box of the new structure can effectively cool the lithium battery box through the setting of the side space and the vents, and the heat is discharged in time. At the same time, the lithium battery is more stable, and there will be no rigid collision, which improves the life of the lithium battery. Although the device can dissipate heat, it is provided with vents, and dust will inevitably enter. Excessive accumulation will affect the use. In addition, the protective shell does not have a shock-absorbing function, so the shock-absorbing performance is poor, and bumps will cause an impact.

[0005] Therefore, it is necessary to propose a lithium battery protection shell to solve the above problems. Utility Model Content

[0006] The main purpose of the utility model is to provide a lithium battery protection shell, which can effectively solve the problems in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A lithium battery protection shell, comprising a shell, wherein the left and right ends of the bottom of the shell are symmetrically fixedly connected with supporting feet, the inner lower end of the shell is slidably connected with a support plate, the left and right ends of the top of the support plate are symmetrically fixedly connected with a limit plate, a lithium battery is arranged between the two limit plates, the four corners of the bottom of the support plate are symmetrically fixedly connected with a first damping spring, the top of the shell is fixedly connected with a top cover by bolts, the two ends of the top of the top cover are symmetrically provided with wire holes, a concave plate is fixedly connected to the middle part of the lower surface of the top cover, a pressing plate is slidably connected to the inner lower end of the concave plate, and the four corners of the top of the pressing plate are symmetrically fixedly connected with a second damping spring;

[0009] The left and right sides of the shell are symmetrically embedded with heat conducting plates, the opposite sides of the two heat conducting plates are symmetrically fixedly connected with cooling fins, the middle of the support plate is provided with a heat dissipation groove, the bottom of the shell is embedded with a frame, the inner side of the frame is provided with a dustproof net, the left and right ends of the dustproof net are symmetrically fixedly connected with end plates, the front and rear ends of the top and bottom of the end plates are symmetrically fixedly connected with vibration springs, and the upper and lower ends of the left and right sides of the inner cavity of the frame are symmetrically fixedly connected with fixing plates.

[0010] Preferably, the bottom of the first damping spring is fixedly connected to the bottom of the inner cavity of the shell, and the top of the second damping spring is fixedly connected to the top of the inner side of the concave plate.

[0011] Preferably, the bottom of the compression plate is in abutment with the top of the lithium battery.

[0012] Preferably, the lower end of the lithium battery is slidably matched with the opposite side of the two limiting plates, and the upper ends of the opposite side of the two limiting plates are arc surfaces.

[0013] Preferably, the heat dissipation groove corresponds to the frame.

[0014] Preferably, the front and rear sides of the dustproof net slide with the front and rear sides of the frame inner cavity, the away sides of the two end plates slide with the left and right sides of the frame inner cavity, and the end of the vibration spring away from the end plate is fixedly connected to the side wall of the fixed plate.

[0015] Beneficial Effects

[0016] Compared with the prior art, the utility model provides a lithium battery protection shell, which has the following beneficial effects:

[0017] 1. The lithium battery protection shell can achieve fixed limit of the lithium battery through the cooperation of the support plate, the first damping spring, the limit plate, the pressing plate, the concave plate, and the second damping spring, and can also perform buffering and shock absorption, thereby reducing the impact of bumps on the lithium battery.

[0018] 2. The lithium battery protection shell, heat conduction plate, heat dissipation fins, heat dissipation grooves and frame cooperate with each other to achieve heat dissipation of the lithium battery, reducing the impact of high temperature on the lithium battery. The setting of the dustproof net can prevent dust from entering. The setting of the end plate, vibration spring and fixed plate can drive the dustproof net to vibrate during bumps, thereby shaking off some dust and reducing the possibility of clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 It is a structural schematic diagram of the support plate of the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the frame of the utility model.

[0024] In the figure: 1. Shell; 2. Top cover; 3. Support feet; 4. Wire holes; 5. Bolts; 6. Heat sink fins; 7. Frame; 8. Lithium battery; 9. Limiting plate; 10. Support plate; 11. First damping spring; 12. Pressing plate; 13. Concave plate; 14. Heat conducting plate; 15. Second damping spring; 16. Heat dissipation groove; 17. Dust net; 18. End plate; 19. Vibration spring; 20. Fixing plate. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1-5As shown, a lithium battery protection shell comprises a shell 1, the left and right ends of the bottom of the shell 1 are symmetrically fixedly connected with supporting feet 3, the inner lower end of the shell 1 is slidably connected with a support plate 10, the left and right ends of the top of the support plate 10 are symmetrically fixedly connected with limiting plates 9, the upper ends of the opposite sides of the two limiting plates 9 are arc surfaces, a lithium battery 8 is arranged between the two limiting plates 9, the lower ends of the lithium battery 8 are slidably matched with the opposite sides of the two limiting plates 9, the bottom four corners of the support plate 10 are symmetrically fixedly connected with first damping springs 11, the bottom of the first damping spring 11 is fixedly connected to the bottom of the inner cavity of the shell 1, the top of the shell 1 is fixedly connected with a top cover 2 by bolts 5, and the top of the top cover 2 Wire holes 4 are symmetrically provided at both ends, a concave plate 13 is fixedly connected to the middle of the lower surface of the top cover 2, a pressing plate 12 is slidably connected to the inner lower end of the concave plate 13, the bottom of the pressing plate 12 is in contact with the top of the lithium battery 8, and the top four corners of the pressing plate 12 are symmetrically fixedly connected with the second damping spring 15, and the top of the second damping spring 15 is fixedly connected to the top of the inner side of the concave plate 13. The lithium battery 8 can be fixedly limited by the mutual cooperation of the support plate 10, the first damping spring 11, the limiting plate 9, the pressing plate 12, the concave plate 13, and the second damping spring 15, and at the same time, buffering and shock reduction can be performed, thereby reducing the impact of bumps on the lithium battery 8;

[0027] The left and right sides of the housing 1 are symmetrically embedded with heat conducting plates 14, and the opposite sides of the two heat conducting plates 14 are symmetrically fixedly connected with heat dissipation fins 6. A heat dissipation groove 16 is opened in the middle of the support plate 10. A frame 7 is embedded in the bottom of the housing 1. The heat dissipation groove 16 corresponds to the frame 7. The mutual cooperation of the heat conducting plates 14, the heat dissipation fins 6, the heat dissipation groove 16, and the frame 7 can realize the heat dissipation of the lithium battery 8, thereby reducing the influence of high temperature on the lithium battery 8;

[0028] A dustproof net 17 is provided on the inner side of the frame 7. The setting of the dustproof net 17 can prevent dust from entering. The front and rear sides of the dustproof net 17 slide with the front and rear sides of the inner cavity of the frame 7. The left and right ends of the dustproof net 17 are symmetrically fixedly connected with end plates 18. The opposite sides of the two end plates 18 slide with the left and right sides of the inner cavity of the frame 7. The front and rear ends of the top and bottom of the end plates 18 are symmetrically fixedly connected with vibration springs 19. The upper and lower ends on the left and right sides of the inner cavity of the frame 7 are symmetrically fixedly connected with fixing plates 20. The end of the vibration spring 19 away from the end plate 18 is fixedly connected to the side wall of the fixing plate 20. The setting of the end plate 18, the vibration spring 19 and the fixing plate 20 can drive the dustproof net 17 to vibrate during bumps, thereby shaking off some dust and reducing the possibility of blockage.

[0029] It should be noted that the utility model is a lithium battery protection shell. When in use, the lithium battery 8 is placed between the two limit plates 9 on the top of the support plate 10. The arc surface of the upper end of the two limit plates 9 on the opposite side is convenient for fixing the lithium battery 8. Then the top cover 2 is set on the upper end of the shell 1, and the bottom of the clamping plate 12 is pressed against the lithium battery 8. Then the bolt 5 is locked. The support plate 10, the first damping spring 11, the limit plate 9, the clamping plate 12, the concave plate 13, and the second damping spring 15 cooperate with each other to achieve fixed limit of the lithium battery 8, and at the same time, buffering and shock reduction can be performed. Specifically, when vibrating, the second damping spring 15 and the first damping spring 11 are both subjected to pressure and deformed, thereby generating a reverse The force is buffered and shock-absorbing, which reduces the impact of bumps on the lithium battery 8. The cooperation of the heat conducting plate 14, the heat dissipation fins 6, the heat dissipation grooves 16, and the frame 7 can achieve heat dissipation for the lithium battery 8. Specifically, the heat generated on the side of the lithium battery 8 is transferred to the heat conducting plate 14, and then the heat conducting plate 14 transfers the heat to the heat dissipation fins 6, and finally dissipates. The heat generated at the bottom of the lithium battery 8 can be discharged by the heat dissipation grooves 16 and the frame 7, which reduces the impact of high temperature on the lithium battery 8. The setting of the dustproof net 17 can prevent dust from entering. The setting of the end plate 18, the vibration spring 19, and the fixed plate 20 can drive the dustproof net 17 to vibrate during bumps, thereby shaking off some dust and reducing the possibility of clogging.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A lithium battery protective housing, comprising a housing (1), characterized in that: The left and right ends of the bottom of the shell (1) are symmetrically fixedly connected with supporting feet (3), the inner lower end of the shell (1) is slidably connected with a support plate (10), the left and right ends of the top of the support plate (10) are symmetrically fixedly connected with a limit plate (9), a lithium battery (8) is arranged between the two limit plates (9), the four corners of the bottom of the support plate (10) are symmetrically fixedly connected with a first damping spring (11), the top of the shell (1) is fixedly connected with a top cover (2) by bolts (5), the two ends of the top of the top cover (2) are symmetrically provided with wire holes (4), the middle part of the lower surface of the top cover (2) is fixedly connected with a concave plate (13), the inner lower end of the concave plate (13) is slidably connected with a clamping plate (12), and the four corners of the top of the clamping plate (12) are symmetrically fixedly connected with a second damping spring (15); The shell (1) is symmetrically embedded with heat conducting plates (14) on both sides, and heat dissipation fins (6) are symmetrically fixedly connected to the opposite sides of the two heat conducting plates (14). A heat dissipation groove (16) is provided in the middle of the support plate (10). A frame (7) is embedded in the bottom of the shell (1). A dustproof net (17) is arranged on the inner side of the frame (7). The left and right ends of the dustproof net (17) are symmetrically fixedly connected to end plates (18). The front and rear ends of the top and bottom of the end plates (18) are symmetrically fixedly connected to vibration springs (19). The upper and lower ends of the left and right sides of the inner cavity of the frame (7) are symmetrically fixedly connected to fixing plates (20).

2. A lithium battery protective casing according to claim 1, characterized in that: The bottom of the first damping spring (11) is fixedly connected to the bottom of the inner cavity of the housing (1), and the top of the second damping spring (15) is fixedly connected to the top of the inner side of the concave plate (13).

3. A lithium battery protective casing according to claim 1, characterized in that: The bottom of the pressing plate (12) is in contact with the top of the lithium battery (8).

4. The lithium battery protective casing according to claim 1, characterized in that: The lower end of the lithium battery (8) is slidably matched with the opposite side of the two limiting plates (9), and the upper ends of the opposite side of the two limiting plates (9) are arc surfaces.

5. The lithium battery protective casing according to claim 1, characterized in that: The heat dissipation groove (16) corresponds to the frame (7).

6. The lithium battery protective casing according to claim 1, characterized in that: The front and rear sides of the dustproof net (17) are slidably matched with the front and rear sides of the inner cavity of the frame (7), the sides of the two end plates (18) that are away from each other are slidably matched with the left and right sides of the inner cavity of the frame (7), and the end of the vibration spring (19) away from the end plate (18) is fixedly connected to the side wall of the fixed plate (20).

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