Lithium battery with waterproof structure

Abstract

The utility model belongs to the technical field of lithium battery waterproofing, and discloses a lithium battery with a waterproof structure, which comprises a waterproof shell and a lithium battery body, a cover plate is rotatably arranged at the top end of the waterproof shell, and the cover plate is positioned on one side inside the waterproof shell and comprises a water vapor absorption component; the water vapor absorption assembly comprises a sealing base plate fixedly arranged at the bottom end of the cover plate, a rubber sealing sleeve is fixedly arranged on the lower surface of the sealing base plate, gaps are formed in the two sides of the rubber sealing sleeve, and the right side of the waterproof shell further comprises an elastic contact assembly. The elastic contact assembly comprises a contact end shell fixedly arranged on the right side of the waterproof shell, a rubber sealing sleeve and a sealing base plate structure, the rubber sealing sleeve is pressed on the outer side of the lithium battery body, the rubber sealing sleeve is deformed through extrusion, a gap is expanded, and a water-absorbing material in the rubber sealing sleeve is leaked out; and water vapor in the waterproof shell is absorbed, so that the outer side of the lithium battery body is prevented from being rusted, and the waterproof effect is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery waterproofing, in particular to a lithium battery with a waterproof structure. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive and negative electrode materials and uses non-aqueous electrolyte solutions. Since lithium batteries use metal shells, the surface of the shell is prone to rust.

[0003] At the same time, the application number is CN202223342043.7, a lithium battery with a waterproof structure, "including a box body and an end cover installed at the port of the box body, a connecting mechanism is arranged between the box body and the end cover, and the connecting mechanism includes: two drive rods threadedly arranged on the end cover, the two drive rods are respectively located on two sides of the end cover corresponding to each other, and the two drive rods are rotatably connected to the plug block at one end close to the box body."

[0004] During use, the existing lithium battery waterproof casing uses a closed structural casing to seal and protect the lithium battery inside to prevent the lithium battery casing from rusting. However, the closed structure will aggravate the rust of the internal casing when water vapor enters, and the casing cannot absorb the water vapor inside, resulting in a limited waterproof effect.

[0005] Therefore, in order to solve the above problems, a lithium battery with a waterproof structure is proposed. Summary of the invention

[0006] In order to solve the problems raised in the above-mentioned background technology, the utility model provides a lithium battery with a waterproof structure, which has an added water-absorbent protective structure located inside the outer shell, which can absorb water vapor directly from the inside of the outer shell, reduce the rust of the lithium battery outer shell, and improve the waterproof advantage of the lithium battery outer shell.

[0007] To achieve the above object, the utility model provides the following technical solution: a lithium battery with a waterproof structure, comprising a waterproof shell and a lithium battery body, wherein a cover plate is rotatably provided at the top of the waterproof shell, and the cover plate is located on one side of the inner part of the waterproof shell and further comprises a water vapor absorption component;

[0008] The water vapor absorption component includes a sealing pad fixedly arranged at the bottom end of the cover plate, a rubber sealing sleeve is fixedly arranged on the lower surface of the sealing pad, and gaps are opened on both sides of the rubber sealing sleeve. The right side of the waterproof shell also includes an elastic contact component;

[0009] The elastic contact assembly includes a contact terminal shell fixedly arranged on the right side of the waterproof shell, a conductive end is slidably arranged inside the contact terminal shell, and the conductive end is in contact with the anode of the lithium battery body, and a contact head is fixedly arranged on the right side of the conductive end and penetrates the contact terminal shell.

[0010] Preferably, a spring is sleeved on the outer side of the coupling shaft between the conducting end and the contact head, and one end of the spring is pressed against the inner wall of the contact end housing.

[0011] Preferably, a positioning seat is fitted on one end of the cathode of the lithium battery body, and a sliding sleeve is fixedly provided on the other surface of the positioning seat.

[0012] Preferably, an adjusting bolt is spirally penetrated on the left side of the waterproof housing, and one end of the adjusting bolt is rotatably arranged with a sliding sleeve. A guide seat is sleeved on the outer side of the sliding sleeve and is fixedly arranged with the inner wall of the waterproof housing.

[0013] Preferably, the outer side of the waterproof shell is fitted with supporting feet of an elastic rubber structure, and the supporting feet are fitted on both sides of the inner wall of the waterproof shell.

[0014] Preferably, a bending groove is provided on one side of the support leg close to the inner wall of the waterproof housing, and an elastic block is fixedly arranged inside the bending groove of the support leg.

[0015] Preferably, an anti-slip block is fixedly provided on one side of the upper surface of the cover plate, a buckle is interference-formed on the outer side of the anti-slip block, and the buckle is rotatably provided on the outer side of the waterproof housing.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] 1. The utility model uses a rubber sealing sleeve and a sealing pad structure. The rubber sealing sleeve is pressed against the outside of the lithium battery body. The rubber sealing sleeve is deformed by extrusion, and the gap is expanded to allow the water-absorbing material inside the rubber sealing sleeve to leak out, thereby absorbing the water vapor inside the waterproof shell, avoiding rust on the outside of the lithium battery body and achieving a better waterproof effect.

[0018] 2. The utility model can limit and clamp lithium battery bodies of different sizes through the contact end shell and the positioning seat structure, thereby completing the clamping of the lithium battery body and maintaining the stability of the lithium battery in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a partial cross-sectional schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the installation structure of the waterproof housing of the utility model;

[0021] Figure 3 It is a schematic cross-sectional structure diagram of the contact end housing of the utility model;

[0022] Figure 4 It is a schematic diagram of the installation structure of the cover plate of the utility model.

[0023] In the figure: 1. waterproof shell; 2. lithium battery body; 3. contact end shell; 4. conduction end; 5. contact head; 6. spring; 7. cover plate; 8. sealing plate; 9. rubber sealing sleeve; 10. gap; 11. positioning seat; 12. guide seat; 13. sliding sleeve; 14. adjusting bolt; 15. support foot; 16. elastic block; 17. anti-drop block; 18. buckle. DETAILED DESCRIPTION

[0024] 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.

[0025] like Figures 1 to 4 As shown, the utility model provides a lithium battery with a waterproof structure, including a waterproof shell 1 and a lithium battery body 2. A cover plate 7 is rotatably provided on the top of the waterproof shell 1. The cover plate 7 covers the top of the waterproof shell 1 to form a closed structure to protect the internal lithium battery body 2. The cover plate 7 is located on one side of the inner part of the waterproof shell 1 and also includes a water vapor absorption component;

[0026] The water vapor absorption component includes a sealing pad 8 fixedly arranged at the bottom end of the cover plate 7, a rubber sealing sleeve 9 is fixedly arranged on the lower surface of the sealing pad 8, and gaps 10 are opened on both sides of the rubber sealing sleeve 9. The right side of the waterproof shell 1 also includes an elastic contact component, and the inside of the rubber sealing sleeve 9 is filled with a water-absorbing and drying material, such as a lime plate, to absorb water vapor inside the waterproof shell 1;

[0027] The elastic contact assembly includes a contact terminal shell 3 fixedly arranged on the right side of the waterproof shell 1, a conduction terminal 4 is slidably arranged inside the contact terminal shell 3, and the conduction terminal 4 is in contact with the anode of the lithium battery body 2, and a contact head 5 is fixedly arranged on the right side of the conduction terminal 4 and penetrates the contact terminal shell 3, which is used for conducting electricity of the internal lithium battery body 2 and preventing the anode of the lithium battery body 2 from leaking.

[0028] Specifically, a spring 6 is sleeved on the outside of the connecting shaft between the conducting terminal 4 and the contact head 5, and one end of the spring 6 is pressed against the inner wall of the contact terminal shell 3. The spring 6 is sleeved on the outside of the conducting terminal 4 and the contact head 5 to push the conducting terminal 4 against the anode of the lithium battery body 2.

[0029] Furthermore, a positioning seat 11 is fitted on one end of the cathode of the lithium battery body 2, and a sliding sleeve 13 is fixedly provided on the other surface of the positioning seat 11. The cathode of the lithium battery body 2 contacts the positioning seat 11 and moves through the positioning seat 11 and the sliding sleeve 13.

[0030] Furthermore, an adjusting bolt 14 is spirally penetrated on the left side of the waterproof housing 1, and one end of the adjusting bolt 14 is rotatably arranged with the sliding sleeve 13. A guide seat 12 is sleeved on the outer side of the sliding sleeve 13 and is fixed to the inner wall of the waterproof housing 1. The adjusting bolt 14 structure is rotated to control the sliding sleeve 13 to move inside the guide seat 12, thereby maintaining the pushed and pressed state of the lithium battery body 2.

[0031] It is worth noting that the outer side of the waterproof housing 1 is fitted with supporting feet 15 of an elastic rubber structure, and the supporting feet 15 are fitted on both sides of the inner wall of the waterproof housing 1 to support the lithium battery body 2 using the supporting feet 15 structure.

[0032] It is worth noting that a bending groove is provided on one side of the support leg 15 close to the inner wall of the waterproof housing 1, and an elastic block 16 is fixedly arranged inside the bending groove of the support leg 15. By squeezing the elastic block 16 inside the bending groove to deform the structure, the support leg 15 is kept in a tight state against the lithium battery body 2.

[0033] It is worth mentioning that an anti-slip block 17 is fixedly provided on one side of the upper surface of the cover 7, a buckle 18 is provided on the outer side of the anti-slip block 17 in an interference fit, and the buckle 18 is rotatably provided on the outer side of the waterproof shell 1 to facilitate the quick closing and positioning of the cover 7.

[0034] Among them, the lithium battery body 2 is the existing technology and will not be described in detail; at the same time, the utility model also includes a power supply, a controller and a switch, which are not the main technical points of this patent and will not be described in detail.

[0035] Working principle and process:

[0036] The user puts the lithium battery body 2 into the waterproof shell 1 with the cover plate 7 opened, first docks the anode of the lithium battery body 2 to the contact end shell 3, and places the cathode of the lithium battery body 2 inside the positioning seat 11, turns the adjusting bolt 14 to control the sliding sleeve 13 inside the guide seat 12 to open, and then pushes the positioning seat 11 at the other end of the sliding sleeve 13 to push against the cathode of the lithium battery body 2 to complete the positioning of the lithium battery body 2. At the same time, the anode of the lithium battery body 2 pushes the conductive end 4 inside the contact end shell 3 to move, and the extrusion spring 6 is compressed to push the contact head 5 out The contact end shell 3 is connected to the external power supply. At the same time, during the operation of the lithium battery body 2, the cover plate 7 is rotated to close the upper opening of the waterproof shell 1, and the buckle 18 is rotated to position to the outside of the anti-slip block 17 on the cover plate 7 to position the cover plate 7. The sealing pad 8 is rotated to push and press the rubber sealing sleeve 9 to the outside of the lithium battery body 2, and the gap 10 is expanded. The water vapor is absorbed by the internal lime plate, and the elastic block 16 inside the bending groove of the support leg 15 is pushed up to strengthen the support for the lithium battery body 2 and provide a water vapor absorption effect inside the waterproof shell 1.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although 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 lithium battery with a waterproof structure, comprising a waterproof housing (1) and a lithium battery body (2), characterized in that: A cover plate (7) is rotatably provided at the top end of the waterproof housing (1), and the cover plate (7) is located on one side of the interior of the waterproof housing (1) and further includes a water vapor absorption component; The water vapor absorption component comprises a sealing pad (8) fixedly arranged at the bottom end of the cover plate (7), a rubber sealing sleeve (9) fixedly arranged on the lower surface of the sealing pad (8), gaps (10) being provided on both sides of the rubber sealing sleeve (9), and a resilient contact component being further provided on the right side of the waterproof housing (1); The elastic contact assembly comprises a contact terminal housing (3) fixedly arranged on the right side of the waterproof housing (1), a conducting terminal (4) slidably arranged inside the contact terminal housing (3), and the conducting terminal (4) is in contact with the anode of the lithium battery body (2), and a contact head (5) penetrating the contact terminal housing (3) is fixedly arranged on the right side of the conducting terminal (4).

2. A lithium battery with a waterproof structure according to claim 1, characterized in that: A spring (6) is sleeved on the outer side of the connecting shaft between the conducting end (4) and the contact head (5), and one end of the spring (6) is pressed against the inner wall of the contact end housing (3).

3. The lithium battery with a waterproof structure according to claim 1, characterized in that: A positioning seat (11) is fitted on one end of the cathode of the lithium battery body (2), and a sliding sleeve (13) is fixedly provided on the other surface of the positioning seat (11).

4. The lithium battery with a waterproof structure according to claim 1, characterized in that: An adjusting bolt (14) is spirally penetrated on the left side of the waterproof housing (1), and one end of the adjusting bolt (14) is rotatably arranged with a sliding sleeve (13). A guide seat (12) is sleeved on the outer side of the sliding sleeve (13) and is fixedly arranged with the inner wall of the waterproof housing (1).

5. The lithium battery with a waterproof structure according to claim 1, characterized in that: Support feet (15) of an elastic rubber structure are fitted on the outer side of the waterproof shell (1), and the support feet (15) are fitted on both sides of the inner wall of the waterproof shell (1).

6. A lithium battery with a waterproof structure according to claim 5, characterized in that: A bending groove is provided on one side of the support leg (15) close to the inner wall of the waterproof housing (1), and an elastic block (16) is fixedly arranged inside the bending groove of the support leg (15).

7. The lithium battery with a waterproof structure according to claim 1, characterized in that: An anti-slip block (17) is fixedly provided on one side of the upper surface of the cover plate (7), a buckle (18) is interference-formed on the outer side of the anti-slip block (17), and the buckle (18) is rotatably provided on the outer side of the waterproof housing (1).

Images