Lithium battery protection device with relatively good heat dissipation performance

Abstract

The utility model relates to the technical field of protection devices, in particular to a lithium battery protection device with better heat dissipation performance, which comprises a casing, a casing cover is mounted at the top end of the casing, heat dissipation nets are mounted on two sides of the outer surface of the casing, a battery body is mounted on the inner surface of the casing, and a cushion is fixedly mounted at the bottom end of the casing cover. Ventilation holes are formed in the two sides of the outer surface of the machine shell and the two sides of the outer surface of the buffering cushion, cooling fans are installed on the two sides of the inner surface of the machine shell, a fixing block is fixedly installed on one side of the outer surface of the machine shell, an observation groove is formed in one side of the outer surface of the fixing block, and an insertion block is slidably connected to the inner surface of the fixing block. According to the protection device, the insertion blocks are arranged on the protection device, convenience is provided for cleaning of the heat dissipation net, blockage of the heat dissipation net is prevented, and the heat dissipation efficiency of the protection device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of protection devices, in particular to a lithium battery protection device with better heat dissipation performance. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and a non-aqueous electrolyte solution. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium-ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable. With the innovation of lithium batteries, lithium batteries are gradually being applied to all aspects of life. For example, electric vehicles are inseparable from the energy supply of lithium batteries. In the process of using lithium batteries, due to their relatively delicate internal structure, the electronic components inside the lithium battery are easily damaged after a collision. At this time, a protective device is needed to protect the lithium battery.

[0003] Publication No. CN212751009U discloses a lithium battery protection device, including a protective box outer shell, a box cover is arranged above the protective box outer shell, and a handle is arranged on the box cover; a protective box is newly added outside the existing lithium battery protection device, the box cover of the protective box is connected by rotating a shaft, a handle is arranged on the box cover, and the box cover is convenient for lifting the box cover to prevent the lithium battery device from being damaged, and a cooling fan and an alarm are arranged on the inner wall of the front end of the protective box, the warning light of the alarm is exposed, and a button is arranged on the alarm. Although the outer shell of the device is heated and expanded to exceed the safety of lithium battery use, the lithium battery outer shell will be squeezed onto the safety plate, and the front iron sheet of the fixed block on the safety plate will press the button of the alarm, and the alarm will sound and the warning light will light up, thereby reminding people that there is a problem with the lithium battery, reminding people to stop charging the lithium battery, and people retreat to a safe distance, but the heat dissipation effect of the device is poor. In the process of using the protective device, when the temperature of the lithium battery is too high, it can only serve as an alarm for it, which has limitations, is not convenient for the heat dissipation work of the protective device, and reduces the service life of the lithium battery, so it needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0005] The utility model adopts the following technical scheme: a lithium battery protection device with better heat dissipation performance, comprising a casing, a casing cover is installed on the top of the casing, heat dissipation nets are installed on both sides of the outer surface of the casing, a battery body is installed on the inner surface of the casing, a buffer pad is fixedly installed on the bottom end of the casing cover, heat dissipation fans are installed on both sides of the inner surface of the casing, a fixed block is fixedly installed on one side of the outer surface of the casing, an observation groove is opened on one side of the outer surface of the fixed block, the inner surface of the fixed block is slidably connected with an insertion block, and a pull rod and a spring are fixedly installed on one side of the outer surface of the insertion block.

[0006] Preferably, ventilation holes are provided on both sides of the outer surfaces of the housing and the buffer pad, thereby facilitating heat transfer through the ventilation holes.

[0007] Preferably, both sides of the outer surface of the housing are provided with slide grooves, and the inner side of the slide grooves is slidably connected with a heat dissipation net. Here, the movement path of the heat dissipation net can be limited by the slide grooves.

[0008] Preferably, the pull rod is slidably connected to one side of the outer surface of the fixed block. Here, the movement of the plug block is facilitated by the pull rod.

[0009] Preferably, a limiting block is fixedly mounted on one end of the inner surface of the fixed block, and the inner circle size of the limiting block is smaller than the outer circle size of the plug-in block. Here, the moving path of the plug-in block can be limited by the limiting block.

[0010] Preferably, both sides of the outer surfaces of the housing and the housing cover are provided with fixing grooves, and the inner sides of the fixing grooves are slidably connected with fixing rods. Here, the fixing grooves facilitate the insertion of the fixing rods.

[0011] Preferably, a connection block is fixedly mounted on one end of the outer surface of the fixing rod, and magnetic strips are fixedly mounted on both the connection block and the outer surface of the housing, and the magnetic strips are mutually attracted. Here, the connection block can be fixed by the magnetic strip.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, by arranging the casing, the casing cover, the heat dissipation net, the battery body, the buffer pad, the ventilation holes, the heat dissipation fan, the slide groove, the fixed block, the observation slot, the plug block, the pull rod, the spring and the limit block, the protection function of the battery body can be realized through the buffer pad, the heat transfer function can be realized through the ventilation holes, the heat dissipation speed can be accelerated by the heat dissipation fan, the limit function of the moving path of the heat dissipation net can be realized through the slide groove, and the fixing function of the position of the heat dissipation net can be realized through the structural combination of the fixed block, the observation slot, the plug block, the pull rod, the spring and the limit block. The structure has strong stability, and the plug block provides convenience for cleaning the heat dissipation net, prevents the heat dissipation net from being blocked, improves the heat dissipation efficiency of the protective device, and increases the service life of the lithium battery.

[0014] 2. In the utility model, by providing a fixing groove, a fixing rod, a connecting block and a magnetic strip, the fixing groove facilitates the insertion of the fixing rod, the connecting block facilitates the movement of the fixing rod, and the magnetic strip realizes the function of fixing the position of the connecting block. The device has a simple structure, and the fixing rod provides convenience for the replacement of the buffer pad, thereby facilitating the use of the protective device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a lithium battery protection device with better heat dissipation performance is proposed for the utility model;

[0016] Figure 2 An exploded diagram of a lithium battery protection device with better heat dissipation performance is proposed for the utility model;

[0017] Figure 3 The utility model proposes a lithium battery protection device with better heat dissipation performance Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 The utility model proposes a lithium battery protection device with better heat dissipation performance Figure 2 Enlarged view of point B in the middle.

[0019] Legend:

[0020] 1. Casing; 2. Shell cover; 3. Heat dissipation net; 4. Battery body; 5. Buffer pad; 6. Ventilation hole; 7. Cooling fan; 8. Slide; 9. Fixing block; 10. Observation slot; 11. Insert block; 12. Pull rod; 13. Spring; 14. Limit block; 15. Fixing slot; 16. Fixing rod; 17. Connecting block; 18. Magnetic strip. DETAILED DESCRIPTION

[0021] 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.

[0022] 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.

[0023] Embodiment 1

[0024] See also Figure 1-3The utility model provides a technical solution: a lithium battery protection device with good heat dissipation performance, comprising a casing 1, a casing cover 2 is installed on the top of the casing 1, heat dissipation nets 3 are installed on both sides of the outer surface of the casing 1, a battery body 4 is installed on the inner surface of the casing 1, a buffer pad 5 is fixedly installed on the bottom end of the casing cover 2, ventilation holes 6 are opened on both sides of the outer surfaces of the casing 1 and the buffer pad 5, and the ventilation holes 6 facilitate the transfer of heat, cooling fans 7 are installed on both sides of the inner surface of the casing 1, slide grooves 8 are opened on both sides of the outer surface of the casing 1, and the inner side of the slide grooves 8 is slidably connected with the heat dissipation net 3, and the moving path of the heat dissipation net 3 can be limited by the slide grooves 8, and a fixing block 9 is fixedly installed on one side of the outer surface of the casing 1, and an observation groove 10 is opened on one side of the outer surface of the fixing block 9, and the situation inside the fixing block 9 can be observed through the observation groove 10.

[0025] See also Figure 2-3 The inner surface of the fixed block 9 is slidably connected with an insert block 11, and a pull rod 12 and a spring 13 are fixedly installed on one side of the outer surface of the insert block 11. The pull rod 12 is slidably connected to one side of the outer surface of the fixed block 9. The movement of the insert block 11 is facilitated by the pull rod 12. A limit block 14 is fixedly installed on one end of the inner surface of the fixed block 9. The inner circle size of the limit block 14 is smaller than the outer circle size of the insert block 11. The moving path of the insert block 11 can be limited by the limit block 14, and the insert block 11 provides convenience for cleaning the heat dissipation network 3, prevents the heat dissipation network 3 from being blocked, improves the heat dissipation efficiency of the protective device, and increases the service life of the lithium battery.

[0026] Embodiment 2

[0027] See also Figure 2-4 Both sides of the outer surfaces of the casing 1 and the casing cover 2 are provided with fixing grooves 15, and the inner side of the fixing groove 15 is slidably connected with a fixing rod 16, which facilitates the insertion of the fixing rod 16 through the fixing groove 15. A connecting block 17 is fixedly installed at one end of the outer surface of the fixing rod 16, and magnetic strips 18 are fixedly installed on the connecting block 17 and the outer surface of the casing 1. The magnetic strips 18 are adsorbed on each other, and the connecting block 17 can be fixed by the magnetic strip 18, and the fixing rod 16 provides convenience for the replacement of the buffer pad 5, which facilitates the use of the protective device.

[0028] Working principle: When using the protective device, first, the heat generated by the battery body 4 can be transferred through the ventilation hole 6, and then the heat dissipation speed can be accelerated through the heat dissipation fan 7, and then the heat is discharged through the heat dissipation net 3. When the protective device is used for a long time, the heat dissipation net 3 is prone to blockage. At this time, it is necessary to pull the pull rod 12, and then the pull rod 12 drives the plug 11 to move on the inner side of the fixed block 9, and the limit block 14 is used to limit the moving path of the plug 11 to prevent the plug 11 from detaching from the inner side of the fixed block 9, and then the plug 11 can be used to drive the spring 13 to compress the plug 11 to keep the plug 11 away from the heat dissipation net 3, and then the heat dissipation net 3 can be removed from the inner side of the slide groove 8 for operation. Cleaning. Similarly, the spring 13 can be reset to drive the plug block 11 to move to the heat dissipation network 3 to fix it, which provides convenience for cleaning the heat dissipation network 3, prevents clogging of the heat dissipation network 3, improves the heat dissipation efficiency of the protective device, and increases the service life of the lithium battery. When the buffer pad 5 needs to be replaced, the fixing rod 16 can be driven by the connecting block 17 to disengage from the inner side of the fixing groove 15, and the magnetic strip 18 on the connecting block 17 can be separated from the magnetic strip 18 on the casing 1, and then the shell cover 2 and the buffer pad 5 can be removed for replacement. Conversely, the position of the connecting block 17 can be fixed by the principle of mutual adsorption between the magnetic strips 18, which provides convenience for the replacement of the buffer pad 5 and facilitates the use of the protective device.

[0029] 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 protection device with good heat dissipation performance, comprising a housing (1), characterized in that: A shell cover (2) is installed at the top of the casing (1), heat dissipation nets (3) are installed on both sides of the outer surface of the casing (1), a battery body (4) is installed on the inner surface of the casing (1), a buffer pad (5) is fixedly installed at the bottom end of the shell cover (2), and heat dissipation fans (7) are installed on both sides of the inner surface of the casing (1). A fixed block (9) is fixedly installed on one side of the outer surface of the casing (1), and an observation groove (10) is provided on one side of the outer surface of the fixed block (9). The inner surface of the fixed block (9) is slidably connected to an insert block (11), and a pull rod (12) and a spring (13) are fixedly installed on one side of the outer surface of the insert block (11).

2. The lithium battery protection device with better heat dissipation performance according to claim 1, characterized in that: Ventilation holes (6) are provided on both sides of the outer surfaces of the housing (1) and the buffer pad (5).

3. The lithium battery protection device with better heat dissipation performance according to claim 1, characterized in that: Slide grooves (8) are provided on both sides of the outer surface of the casing (1), and the inner side of the slide groove (8) is slidably connected to a heat dissipation net (3).

4. The lithium battery protection device with better heat dissipation performance according to claim 1, characterized in that: The pull rod (12) is slidably connected to one side of the outer surface of the fixing block (9).

5. The lithium battery protection device with better heat dissipation performance according to claim 1, characterized in that: A limiting block (14) is fixedly mounted on one end of the inner surface of the fixed block (9), and the inner circle size of the limiting block (14) is smaller than the outer circle size of the insert block (11).

6. The lithium battery protection device with better heat dissipation performance according to claim 1, characterized in that: Both sides of the outer surfaces of the housing (1) and the housing cover (2) are provided with fixing grooves (15), and the inner side of the fixing groove (15) is slidably connected with a fixing rod (16).

7. The lithium battery protection device with better heat dissipation performance according to claim 6, characterized in that: A connection block (17) is fixedly mounted on one end of the outer surface of the fixing rod (16), and magnetic strips (18) are fixedly mounted on both the connection block (17) and the outer surface of the housing (1), and the magnetic strips (18) are attracted to each other.

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