Waterproof lithium battery

Abstract

The utility model relates to the technical field of lithium battery, especially a waterproof lithium battery, which adopts a cover assembly structure with threads, can seal the outside of the battery pack, has good waterproof performance, and is simple in structure, durable and improved in practicability, the utility model relates to a lithium battery pack, further includes battery case, positive pole contact piece, positive pole wire, outer thread mouth, top cover, internal thread groove, spring, negative pole contact piece and negative pole wire, the inside bottom side of battery case is connected with positive pole contact piece, the outward connection of positive pole contact piece has positive pole wire, and the bottom of battery case seals the side of positive pole wire, the top end ring side of battery case is connected with the bottom side of outer thread mouth, the inside downside of top cover is provided with internal thread groove, internal thread groove is detachable with outer thread mouth screw assembly, the inside top side of top cover is connected with the upside of negative pole contact piece through spring, the outward connection of spring has negative pole wire, the top of top cover seals the side of negative pole wire, and the positioning structure is arranged between battery case and top cover.

Description

Technical Field

[0001] This utility model relates to the technical field of lithium batteries, specifically a waterproof lithium battery. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as the positive / negative electrode materials and a non-aqueous electrolyte solution. The earliest lithium metal battery was proposed and studied by Gilbert N. Lewis in 1912. In the 1970s, MS Whittingham proposed and began researching lithium-ion batteries. Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use require very strict environmental controls. With the development of science and technology, lithium-ion batteries have become mainstream.

[0003] An existing waterproof lithium battery pack, such as the one with patent publication number CN222838936U, has a second shell that is adapted to the first shell. The lithium battery pack is fixed inside the first shell, and a sealing module is used to waterproof the space between the first shell and the second shell. The second seal is set in a fitting groove. When the first seal moves into the fitting groove, the second seal fits into the groove of the first seal. The elastic skeleton is made of elastic material and compresses the first seal. The first seal and the second seal fit tightly together, so that the first shell and the second shell are relatively sealed, thereby improving the waterproof performance.

[0004] However, its internal structure is complex, with many delicate parts, resulting in a high failure rate and a reduction in sealing and waterproofing performance, making it impractical. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a waterproof lithium battery with a threaded cover structure that can seal the outside of the battery pack, providing excellent waterproof performance, and is simple, durable, and practical.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a waterproof lithium battery, including a lithium battery pack, and further including a battery casing, a positive electrode contact, a positive electrode wire, an external threaded opening, a top cover, an internal threaded groove, a spring, a negative electrode contact, and a negative electrode wire. The positive electrode contact is connected to the bottom side inside the battery casing, and the positive electrode wire is connected to the positive electrode contact outward. The bottom of the battery casing is sealed to the side where the positive electrode wire passes through. The top circumferential side of the battery casing is connected to the bottom side of the external threaded opening. An internal threaded groove is provided on the lower side inside the top cover, and the internal threaded groove and the external threaded opening are detachably screwed together. The top side inside the top cover is connected to the upper side of the negative electrode contact via a spring, and the negative electrode wire is connected to the spring outward. The top of the top cover is sealed to the side where the negative electrode wire passes through. A positioning structure is provided between the battery casing and the top cover.

[0008] Preferably, the positioning structure includes a connecting frame, a sliding sleeve, a plug rod, a connecting spring, a pull tab, and a pin slot seat. The upper middle part of the front side of the battery housing is connected to the rear side of the sliding sleeve via the connecting frame. The inner wall of the sliding sleeve is vertically slidably connected to the outer wall of the plug rod. The bottom side of the plug rod is connected to the rear part of the top side of the pull tab. A connecting spring is connected to the outside of the plug rod on the top side of the pull tab and the outside of the plug rod on the bottom side of the sliding sleeve. The front middle side of the top cover is connected to the rear side of the pin slot seat.

[0009] Preferably, it also includes a chamfered groove, and the upper part of the insertion rod is provided with a chamfered groove.

[0010] Preferably, it also includes corresponding identifier one and corresponding identifier two, with the lower rear part of the top cover connected to the inner side of corresponding identifier one, and the upper rear part of the battery casing connected to the inner side of corresponding identifier two.

[0011] Preferably, it also includes an information board, which is provided in the middle of the rear side of the battery casing.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a waterproof lithium battery, which has the following advantages: The positive wire is connected to the positive terminal of the circuit, and the negative wire is connected to the negative terminal. During installation, the top cover is separated from the battery casing. The lithium battery pack is inserted into the battery casing, so that the positive terminal of the lithium battery pack contacts the positive contact. Then, the top cover is placed on the upper side of the battery casing, and the internal thread groove and external thread opening are used to rotate and screw the top cover closed. The top cover is fixed closed by the positioning structure. Under the elastic support of the spring, the negative contact contacts the negative terminal of the lithium battery pack, thus forming an outward conduction of electricity from the lithium battery pack through the positive and negative wires. The threaded cover structure can seal the outside of the battery pack, providing good waterproof performance. It is also simple, durable, and improves practicality. Attached Figure Description

[0014] Figure 1 This is an axial view illustrating the structure of this utility model. Figure 2 This utility model Figure 1 Rear view; Figure 3 This utility model Figure 1 The right view; Figure 4 This utility model Figure 3 Front view of AA section.

[0015] The following labels are used in the attached diagram: 1. Lithium battery pack; 2. Battery casing; 3. Positive electrode contact; 4. Positive electrode wire; 5. External threaded opening; 6. Top cover; 7. Internal threaded groove; 8. Spring; 9. Negative electrode contact; 10. Negative electrode wire; 11. Connecting bracket; 12. Sliding sleeve; 13. Insert rod; 14. Connecting spring; 15. Pull tab; 16. Pin slot seat; 17. Chamfered groove; 18. Corresponding label one; 19. Corresponding label two; 20. Information plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0017] Please see Figure 1-4A waterproof lithium battery includes a lithium battery pack 1, a battery casing 2, a positive electrode contact 3, a positive electrode wire 4, an external threaded opening 5, a top cover 6, an internal threaded groove 7, a spring 8, a negative electrode contact 9, and a negative electrode wire 10. The positive electrode contact 3 is connected to the bottom inside of the battery casing 2, and the positive electrode wire 4 is connected to the positive electrode contact 3 outwards. The bottom of the battery casing 2 is sealed to the side where the positive electrode wire 4 passes through. The top edge of the battery casing 2 is connected to the bottom edge of the external threaded opening 5. The bottom inside of the top cover 6 has an internal threaded groove 7, which is detachably screwed to the external threaded opening 5. The top inside of the top cover 6 is connected to the upper side of the negative electrode contact 9 via the spring 8, and the negative electrode wire 10 is connected to the spring 8 outwards. The top of the top cover 6 is sealed to the negative electrode contact 9. The wire 10 passes through the side seal, and a positioning structure is provided between the battery housing 2 and the top cover 6; the positive wire 4 is connected to the positive terminal of the circuit, and the negative wire 10 is connected to the negative terminal of the circuit. During installation, the top cover 6 is separated from the battery housing 2, and the lithium battery pack 1 is inserted into the battery housing 2 so that the positive terminal of the lithium battery pack 1 contacts the positive terminal contact 3. Then, the top cover 6 is placed on the upper side of the battery housing 2, and the internal thread groove 7 cooperates with the external thread opening 5 to make the top cover 6 rotate and screw closed. The positioning structure closes and fixes the top cover 6. Under the elastic support of the spring 8, the negative terminal contact 9 contacts the negative terminal of the lithium battery pack 1, thereby forming the lithium battery pack 1 to conduct electricity outward through the positive wire 4 and the negative wire 10.

[0018] The positioning structure includes a connecting frame 11, a sliding sleeve 12, an insert rod 13, a connecting spring 14, a pull tab 15, and a pin slot seat 16. The upper front part of the battery housing 2 is connected to the rear side of the sliding sleeve 12 via the connecting frame 11. The inner wall of the sliding sleeve 12 is vertically slidably connected to the outer wall of the insert rod 13. The bottom side of the insert rod 13 is connected to the rear top side of the pull tab 15. A connecting spring 14 is connected between the outside of the insert rod 13 on the top side of the pull tab 15 and the outside of the insert rod 13 on the bottom side of the sliding sleeve 12. The top cover 6 is located on the front middle side. It is connected to the rear side of the pin seat 16; when the pull tab 15 is pulled down, it can overcome the elastic force of the connecting spring 14 and put the insertion rod 13 in the lower position, so as to avoid interference with the movement of the pin seat 16. When the top cover 6 is rotated and closed in place, the pin seat 16 and the insertion rod 13 can be vertically aligned. After the pull tab 15 is released, under the elastic contraction of the connecting spring 14, the insertion rod 13 can be inserted into the pin seat 16, thereby limiting the rotational movement of the top cover 6, preventing loosening and improving reliability.

[0019] It also includes an information board 20, which is located in the middle of the rear side of the battery casing 2; the information board 20 can display information about the device, making it easier to read and use, and improving convenience. Example 2

[0020] Please see Figure 1-4A waterproof lithium battery includes a lithium battery pack 1, a battery casing 2, a positive electrode contact 3, a positive electrode wire 4, an external threaded opening 5, a top cover 6, an internal threaded groove 7, a spring 8, a negative electrode contact 9, and a negative electrode wire 10. The positive electrode contact 3 is connected to the bottom inside of the battery casing 2, and the positive electrode wire 4 is connected to the positive electrode contact 3 outwards. The bottom of the battery casing 2 is sealed to the side where the positive electrode wire 4 passes through. The top edge of the battery casing 2 is connected to the bottom edge of the external threaded opening 5. The bottom inside of the top cover 6 has an internal threaded groove 7, which is detachably screwed to the external threaded opening 5. The top inside of the top cover 6 is connected to the upper side of the negative electrode contact 9 via the spring 8, and the negative electrode wire 10 is connected to the spring 8 outwards. The top of the top cover 6 is sealed to the negative electrode contact 9. The wire 10 passes through the side seal, and a positioning structure is provided between the battery housing 2 and the top cover 6; the positive wire 4 is connected to the positive terminal of the circuit, and the negative wire 10 is connected to the negative terminal of the circuit. During installation, the top cover 6 is separated from the battery housing 2, and the lithium battery pack 1 is inserted into the battery housing 2 so that the positive terminal of the lithium battery pack 1 contacts the positive terminal contact 3. Then, the top cover 6 is placed on the upper side of the battery housing 2, and the internal thread groove 7 cooperates with the external thread opening 5 to make the top cover 6 rotate and screw closed. The positioning structure closes and fixes the top cover 6. Under the elastic support of the spring 8, the negative terminal contact 9 contacts the negative terminal of the lithium battery pack 1, thereby forming the lithium battery pack 1 to conduct electricity outward through the positive wire 4 and the negative wire 10.

[0021] It also includes corresponding mark 18 and corresponding mark 2 19. The lower rear part of the top cover 6 is connected to the inner side of corresponding mark 18, and the upper rear part of the battery casing 2 is connected to the inner side of corresponding mark 2 19. Visually matching corresponding mark 18 and corresponding mark 2 19 can help determine whether the top cover 6 is rotated and screwed in place, thus improving convenience.

[0022] It also includes an information board 20, which is located in the middle of the rear side of the battery casing 2; the information board 20 can display information about the device, making it easier to read and use, and improving convenience.

[0023] This lithium battery pack 1 is a commercially available device known to those skilled in the art, and has a corresponding control system to fulfill its functions. Here we are simply using it without making any structural or functional improvements, and we will not go into detail about it here.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof lithium battery, comprising a lithium battery pack (1), characterized in that, It also includes a battery housing (2), a positive electrode contact (3), a positive electrode wire (4), an external threaded opening (5), a top cover (6), an internal threaded groove (7), a spring (8), a negative electrode contact (9), and a negative electrode wire (10). The positive electrode contact (3) is connected to the bottom inside the battery housing (2), and the positive electrode wire (4) is connected to the positive electrode contact (3) outward. The bottom of the battery housing (2) is sealed to the side through which the positive electrode wire (4) passes. The top ring side of the battery housing (2) is connected to the bottom side of the external threaded opening (5). An internal threaded groove (7) is provided on the lower inside of the top cover (6). The internal threaded groove (7) and the external threaded opening (5) are detachably screwed together. The top inside of the top cover (6) is connected to the upper side of the negative electrode contact (9) via the spring (8). The negative electrode wire (10) is connected to the spring (8) outward. The top of the top cover (6) is sealed to the side through which the negative electrode wire (10) passes. A positioning structure is provided between the battery housing (2) and the top cover (6).

2. A waterproof lithium battery according to claim 1, characterized in that: The positioning structure includes a connecting frame (11), a sliding sleeve (12), an insert rod (13), a connecting spring (14), a pull tab (15), and a pin slot seat (16). The upper front part of the battery housing (2) is connected to the rear side of the sliding sleeve (12) via the connecting frame (11). The inner wall of the sliding sleeve (12) is vertically slidably connected to the outer wall of the insert rod (13). The bottom side of the insert rod (13) is connected to the rear top side of the pull tab (15). The outer side of the insert rod (13) on the top side of the pull tab (15) is connected to the outer side of the insert rod (13) on the bottom side of the sliding sleeve (12) by a connecting spring (14). The front middle side of the top cover (6) is connected to the rear side of the pin slot seat (16).

3. A waterproof lithium battery according to claim 2, characterized in that: It also includes a chamfered groove (17), and the upper part of the insert (13) is provided with a chamfered groove (17).

4. A waterproof lithium battery according to claim 1, characterized in that: It also includes corresponding identifier one (18) and corresponding identifier two (19), the lower rear part of the top cover (6) is connected to the inner side of corresponding identifier one (18), and the upper rear part of the battery casing (2) is connected to the inner side of corresponding identifier two (19).

5. A waterproof lithium battery according to claim 1, characterized in that: It also includes an information board (20), which is provided in the middle of the rear side of the battery casing (2).

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