Cylindrical alkaline battery with high constant power discharge performance
By employing a multi-layered sealing structure and rubber ring design, the problem of sealing failure in alkaline batteries under external stress is solved, achieving high constant power discharge performance and safety, ensuring no electrolyte leakage, and extending battery life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-24
AI Technical Summary
During transportation or use, changes in external environmental pressure can cause deformation of the sealing rings in existing alkaline batteries, leading to seal failure and potentially electrolyte leakage, which can affect battery performance and safety.
The system employs a multi-layer sealing structure, including a first sealing end cap assembly, a second sealing end cap assembly, a first auxiliary pressing assembly, and a second auxiliary pressing assembly. Through adhesive bonding and spiral connection, the sealing performance between the isolation tube and the battery steel shell is enhanced. The design of the rubber ring and cone disperses stress, ensuring a stable sealing effect.
It effectively prevents electrolyte leakage, extends battery life, improves safety and stability in high-power discharge scenarios, and provides a reliable user experience.
Smart Images
Figure CN224036491U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to alkaline battery technical field, concretely is a kind of high constant power discharge performance cylindrical alkaline battery. BACKGROUND
[0002] Cylindrical alkaline battery is a common chemical power supply, with zinc as negative electrode, manganese dioxide as positive electrode, and using alkaline electrolyte as medium, it has higher energy density, stable voltage output and longer service life, and is widely used in various portable electronic devices, household appliances and small appliances, and is one of the most commonly used battery types in daily life, in the design of alkaline battery, the isolation tube and the battery steel shell usually need to be sealed, if the isolation tube and the steel shell are not sealed, electrolyte may leak from the gap, causing the battery shell to corrode, and even possibly causing chemical burns to the user.
[0003] High constant power discharge performance refers to the ability of the battery to stably provide constant power under the condition of continuous high power output, this performance requires the battery to maintain low internal resistance, stable voltage output and efficient electrochemical reaction when discharging at high current, so as to ensure stable energy supply in long-time high power demand application scenarios, while avoiding performance decline or shortening of service life due to overheating or voltage drop.
[0004] In view of the fact that the battery may be subjected to mechanical impact, vibration or extrusion during transportation or use, these external forces will cause deformation of the internal structure of the battery, in the prior art, the sealing between the isolation tube and the steel shell is usually realized by installing an elastic sealing ring, the sealing ring relies on the close fit with the inner wall of the steel shell to maintain the sealing effect, however, when the external environmental pressure changes, the sealing ring will be subjected to additional stress, the sealing ring may be extruded and deformed, causing the contact stress distribution between the sealing ring and the inner wall of the steel shell to change, this positional change may cause the gap between the sealing ring and the inner wall of the steel shell to increase, thereby losing the sealing effect, once the sealing fails, electrolyte may further leak, not only causing safety hazards due to accelerated corrosion of the battery shell, but also causing significant decline in battery performance, therefore, a high constant power discharge performance cylindrical alkaline battery is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of high constant power discharge performance cylindrical alkaline battery, to solve the problem that for the battery in the process of transportation or use, when external environmental pressure changes, sealing ring will be subjected to additional stress, sealing ring can be extruded and deformed, causing the contact stress distribution between the sealing ring and the inner wall of the steel shell to change, this positional change may cause the gap between the sealing ring and the inner wall of the steel shell to increase, thereby losing the sealing effect.
[0006] To achieve the above object, the utility model provides the following technical scheme:
[0007] A high constant power discharging performance cylindrical alkaline battery, including battery steel shell, battery positive cap, isolation pipe, first sealing end cover subassembly and negative pole cover, the first sealing end cover subassembly bottom is fixedly connected with negative pole cover through sticky, the battery positive cap bottom is fixedly connected with second sealing end cover subassembly top, the second sealing end cover subassembly inside and first auxiliary pressure joint subassembly outside spiral fit, the first sealing end cover subassembly inside spiral connection has second auxiliary pressure joint subassembly, the first sealing end cover subassembly includes sealing end cover body, the sealing end cover body bottom is fixedly connected with first sealing rubber pad, the sealing end cover body top is fixedly connected with cone cylinder, the inside of cone cylinder near lower end is provided with screw hole, the inside of cone cylinder near upper end is fixedly connected with first rubber ring, the second auxiliary pressure joint subassembly includes insulating outer thread cylinder, the insulating outer thread cylinder top is fixedly connected with conical pressing plate, the inside of insulating outer thread cylinder is provided with electricity insertion hole, the outside of insulating outer thread cylinder is fixedly connected with manual plate, the outside of conical pressing plate is fixedly connected with second rubber ring, the insulating outer thread cylinder bottom is fixedly connected with second sealing rubber pad, the outside of insulating outer thread cylinder and the inside of screw hole that sealing end cover body set up spiral connection, the outside of sealing end cover body and battery steel shell inside are close, the inside of battery steel shell lower end and first sealing rubber pad bottom are close.
[0008] As the further optimization of the utility model, wherein: the battery steel shell inside is fixedly connected with the battery positive cap and the first sealing end cover subassembly, the negative pole cover top is fixedly connected with the current collecting needle, and the second sealing end cover subassembly outside is close to the battery steel shell inside.
[0009] As the further optimization of the utility model, wherein: the lower end of the isolation pipe is fixed between the cone cylinder and the conical pressing plate, the upper end of the isolation pipe is fixed between the second sealing end cover subassembly and the first auxiliary pressure joint subassembly, and the current collecting needle extends to the inside of the isolation pipe.
[0010] As the further optimization of the utility model, wherein: the sealing end cover body bottom is fixedly connected with the negative pole cover top, the inside of the sealing end cover body near the current collecting needle is provided with a through hole, and the current collecting needle is inserted into the inside of the sealing end cover body through hole.
[0011] As the further optimization of the utility model, wherein: the manual plate is inside the negative pole cover upper end, the current collecting needle is inserted into the inside of the electricity insertion hole, the second sealing rubber pad bottom is close to the negative pole cover inside, the current collecting needle protrudes the upper end of the electricity insertion hole, and the insulating outer thread cylinder protrudes the lower end of the sealing end cover body.
[0012] As the further optimization of the utility model, wherein: the first rubber ring inner side and the second rubber ring outer side are close to the isolation tube, the upper end shape of the cone cylinder is a hollow cone, and the shape of the conical pressing plate is a hollow cone.
[0013] As the further optimization of the utility model, wherein: the structure of the second sealing end cover assembly is same with the structure of the first sealing end cover assembly, the upper end of the first auxiliary pressure joint assembly protrudes the upper end of the second sealing end cover assembly, the recess is arranged on the inner side of the lower end of the battery positive cap close to the first auxiliary pressure joint assembly, and the part of the upper end of the first auxiliary pressure joint assembly is in the recess of the lower end of the battery positive cap.
[0014] Compared with the prior art, the utility model has the beneficial effects that:
[0015] In the utility model, the first sealing end cover assembly, the second sealing end cover assembly, the first auxiliary pressure joint assembly and the second auxiliary pressure joint assembly are arranged, the sealing effect between the isolation tube and the battery steel shell is kept stable during long-term use, even if the mechanical stress is received, the sealing structure will not fail due to the size change, thereby effectively avoiding the risk of electrolyte leakage, the service life of the battery is prolonged, the possibility of battery shell corrosion and performance decline caused by electrolyte leakage is reduced, the safety and stability of the battery in the high-power discharge scene are improved, and more reliable and safe use experience is provided for the user. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the whole structure schematic diagram of the utility model;
[0017] Figure 2 It is the sectional structure schematic diagram of the battery steel shell of the utility model;
[0018] Figure 3 It is the isolation tube structure schematic diagram of the utility model;
[0019] Figure 4 It is the current collecting needle structure schematic diagram of the utility model;
[0020] Figure 5 It is the first sealing end cover assembly structure schematic diagram of the utility model;
[0021] Figure 6 It is the sectional structure schematic diagram of the utility model insulating external thread cylinder.
[0022] In the drawing: 1, battery steel shell; 2, battery positive cap; 3, isolation tube;
[0023] 4, first sealing end cover assembly; 41, sealing end cover body; 42, first sealing rubber pad; 43, tapered cylinder; 44, screw hole; 45, first rubber ring;
[0024] 5, negative cover; 6, current collecting pin; 7, second sealing end cover assembly; 8, first auxiliary pressure assembly;
[0025] 9, second auxiliary pressure assembly; 91, insulating outer threaded cylinder; 92, tapered pressing plate; 93, power supply jack; 94, manual plate; 95, second rubber ring; 96, second sealing rubber pad. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0027] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.
[0028] Please refer to Figures 1-6 The present application provides a technical solution:
[0029] The utility model provides a kind of high constant power discharging performance cylindrical alkaline battery, including battery steel shell 1, battery positive cap 2, isolation tube 3, first sealing end cover component 4 and negative cap 5, first sealing end cover component 4 bottom end is fixedly connected with negative cap 5 by adhesive, battery positive cap 2 bottom end is fixedly connected with the top of second sealing end cover component 7, the inside of second sealing end cover component 7 and the outside of first auxiliary pressure connection component 8 spiral adhesion, the inside of first sealing end cover component 4 is connected with second auxiliary pressure connection component 9, first sealing end cover component 4 includes sealing end cover body 41, sealing end cover body 41 bottom end is fixedly connected with first sealing rubber pad 42, sealing end cover body 41 top end is fixedly connected with taper cylinder 43, taper cylinder 43 is close to the inside of lower end and is equipped with screw hole 44, taper cylinder 43 is close to the inside of upper end and is fixedly connected with first rubber ring 45, second auxiliary pressure connection component 9 includes insulating outer thread cylinder 91, insulating outer thread cylinder 91 top end is fixedly connected with taper pressing plate 92, insulating outer thread cylinder 91 inside is equipped with electricity passing jack 93, insulating outer thread cylinder 91 outside is fixedly connected with manual plate 94, taper pressing plate 92 outside is fixedly connected with second rubber ring 95, insulating outer thread cylinder 91 bottom end is fixedly connected with second sealing rubber pad 96, the outside of insulating outer thread cylinder 91 and the inside of screw hole 44 that sealing end cover body 41 is equipped with spiral connection, the outside of sealing end cover body 41 and the inside of battery steel shell 1 are close, and the inside of first sealing rubber pad 42 bottom end and the lower end of battery steel shell 1 is close.
[0030] As further implementation of the scheme, the inside of battery steel shell 1 is fixedly connected with battery positive cap 2 and first sealing end cover component 4 by pressure connection, the top of negative cap 5 is fixedly connected with current collecting needle 6, the inside of second sealing end cover component 7 and the inside of battery steel shell 1 are close, by the above setting, the stability of structure is enhanced, ensures that each component is not easy to loosen in long-term use, and the close adhesion of second sealing end cover component 7 and battery steel shell 1 effectively prevents electrolyte leakage, improves the overall sealing property and reliability of battery;
[0031] As further implementation of the scheme, the lower end of isolation tube 3 is fixed between taper cylinder 43 and taper pressing plate 92, the upper end of isolation tube 3 is fixed between second sealing end cover component 7 and first auxiliary pressure connection component 8, current collecting needle 6 extends to the inside of isolation tube 3, the top of sealing end cover body 41 and the top of negative cap 5 are fixedly connected by adhesive, the inside of sealing end cover body 41 close to current collecting needle 6 is equipped with through hole, and current collecting needle 6 is inserted in the inside of sealing end cover body 41 through hole, by the above setting, current collecting needle 6 can contact with electrolyte in the inside of isolation tube 3, effectively prevents electrolyte leakage, and ensures that the inside structure of battery is compact, improves overall performance;
[0032] As a further implementation of the present scheme, the manual plate 94 is inside the upper end of the negative cover 5, the current collecting pin 6 is inserted into the inside of the power supply jack 93, the bottom end of the second sealing rubber pad 96 is attached to the inside of the negative cover 5, the current collecting pin 6 protrudes from the upper end of the power supply jack 93, the insulating outer threaded cylinder 91 protrudes from the lower end of the sealing end cover body 41, through the above setting, effectively avoid the leakage of electrolyte, at the same time, the protruding design can be assembled and positioned, improve the production efficiency and the reliability of the battery;
[0033] As a further implementation of the present scheme, the inside of the first rubber ring 45 and the outside of the second rubber ring 95 are tightly attached to the isolation pipe 3, the upper end of the cone cylinder 43 is in the shape of a hollow cone, and the shape of the conical pressing plate 92 is a hollow cone, through the above setting, the tight design enhances the sealing performance, the cone-shaped cone cylinder 43 and conical pressing plate 92 can better disperse stress, reduce the risk of sealing failure caused by mechanical stress, further improve the stability and service life of the battery;
[0034] As a further implementation of the present scheme, the structure of the second sealing end cover assembly 7 is the same as that of the first sealing end cover assembly 4, the upper end of the first auxiliary pressing assembly 8 protrudes from the upper end of the second sealing end cover assembly 7, the battery positive cap 2 is provided with a groove near the inside of the lower end of the first auxiliary pressing assembly 8, part of the upper end of the first auxiliary pressing assembly 8 is inside the groove at the lower end of the battery positive cap 2, through the above setting, ensure that the sealing performance remains reliable in long-term use, effectively reduce the risk of electrolyte leakage.
[0035] Work flow: in the process of assembling, the sealing end cover body 41 and the first sealing rubber pad 42 are crimped and fixed in the inside of the battery steel shell 1, the first sealing rubber pad 42 plays a role of sealing and plugging the lower end of the battery steel shell 1, the second auxiliary crimping assembly 9 is pre-installed in the inside of the first sealing end cover assembly 4, the first auxiliary crimping assembly 8 is pre-installed in the inside of the second sealing end cover assembly 7, the lower end of the isolation tube 3 is inserted in the inside of the conical cylinder 43 and the outside of the conical pressing plate 92, the insulating outer threaded cylinder 91 is rotated in the screw hole 44 of the sealing end cover body 41, when rotating, the conical pressing plate 92 drives the second rubber ring 95 to move downward, the lower end of the isolation tube 3 is extruded through the cooperation of the conical cylinder 43 and the conical pressing plate 92, the second rubber ring 95 and the first rubber ring 45 play a role of sealing between the conical cylinder 43, the isolation tube 3 and the conical pressing plate 92, then the current collecting pin 6 is inserted into the inside of the isolation tube 3 from the inside of the power supply insertion hole 93, when the top end of the negative cover 5 is close to the bottom end of the sealing end cover body 41, the top end of the negative cover 5 is close to the bottom end of the second sealing rubber pad 96 at this time, the negative cover 5 and the sealing end cover body 41 are fixed through the colloid, the second sealing rubber pad 96 plays a role of sealing between the negative cover 5 and the insulating outer threaded cylinder 91, which can prevent the electrolyte in the isolation tube 3 from overflowing, the positive ring is installed between the battery steel shell 1 and the isolation tube 3, then the upper end of the isolation tube 3 is fixed between the first auxiliary crimping assembly 8 and the second sealing end cover assembly 7, so as to realize the role of plugging the upper end of the isolation tube 3, the structure of the first auxiliary crimping assembly 8 is the same as that of the second auxiliary crimping assembly 9, but the inside of the first auxiliary crimping assembly 8 is realized, the bottom end of the battery positive cap 2 is fixed with the top end of the second sealing end cover assembly 7 through the colloid, the battery positive cap 2 and the battery steel shell 1 are crimped and fixed, so that the battery positive cap 2 and the battery steel shell 1 are in conduction, the installation is completed, the sealing mode of the device is that when the fixed part of the sealing structure is subjected to mechanical stress, the sealing ring is deformed and buffered, and the sealing part is limited at the same time, the stability of the sealing between the battery steel shell 1 and the isolation tube 3 is improved, the risk of electrolyte leakage is greatly reduced, and the safety of the battery during transportation is improved.
[0036] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A high constant power discharge performance cylindrical alkaline battery comprising a battery steel can (1), a battery positive cap (2), a separator tube (3), a first seal end cap assembly (4) and a negative cap (5), characterized in that: The bottom end of the first sealing end cover assembly (4) is fixedly connected with a negative cover (5) by adhesive, the bottom end of the battery positive cap (2) is adhesively fixed with the top end of a second sealing end cover assembly (7), the inside of the second sealing end cover assembly (7) is spirally attached with the outside of a first auxiliary crimping assembly (8), and the inside of the first sealing end cover assembly (4) is spirally connected with a second auxiliary crimping assembly (9). The first sealing end cover assembly (4) comprises a sealing end cover body (41), the bottom end of the sealing end cover body (41) is fixedly connected with a first sealing rubber pad (42), the top end of the sealing end cover body (41) is fixedly connected with a tapered cylinder (43), the inside of the lower end of the tapered cylinder (43) is provided with a threaded hole (44), and the inside of the upper end of the tapered cylinder (43) is fixedly connected with a first rubber ring (45). The second auxiliary crimping assembly (9) comprises an insulating external threaded cylinder (91), the top end of the insulating external threaded cylinder (91) is fixedly connected with a tapered pressing plate (92), the inside of the insulating external threaded cylinder (91) is provided with an electrically conductive jack (93), the outside of the insulating external threaded cylinder (91) is fixedly connected with a manual plate (94), the outside of the tapered pressing plate (92) is fixedly connected with a second rubber ring (95), and the bottom end of the insulating external threaded cylinder (91) is fixedly connected with a second sealing rubber pad (96). The outside of the insulating external threaded cylinder (91) is spirally connected with the inside of the threaded hole (44) provided in the sealing end cover body (41), the outside of the sealing end cover body (41) is tightly attached to the inside of the battery steel shell (1), and the bottom end of the first sealing rubber pad (42) is tightly attached to the inside of the lower end of the battery steel shell (1).
2. A high constant-power discharge performance cylindrical alkaline battery according to claim 1, characterized by: The inside of the battery steel shell (1) is crimpingly fixedly connected with the battery positive cap (2) and the first sealing end cover assembly (4), the top end of the negative cover (5) is fixedly connected with a current collecting needle (6), and the outside of the second sealing end cover assembly (7) is tightly attached to the inside of the battery steel shell (1).
3. A high constant-power discharge performance cylindrical alkaline battery according to claim 2, characterized by: The lower end of the isolation tube (3) is fixed between the tapered cylinder (43) and the tapered pressing plate (92), the upper end of the isolation tube (3) is fixed between the second sealing end cover assembly (7) and the first auxiliary crimping assembly (8), and the current collecting needle (6) extends into the inside of the isolation tube (3).
4. The high constant-power discharge performance cylindrical alkaline battery according to claim 1, characterized by: The bottom end of the sealing end cover body (41) is adhesively fixedly connected with the top end of the negative cover (5), the inside of the sealing end cover body (41) close to the current collecting needle (6) is provided with a through hole, and the current collecting needle (6) is inserted into the inside of the through hole of the sealing end cover body (41).
5. A high constant-power discharge performance cylindrical alkaline battery according to claim 2, characterized by: The manual plate (94) is inside the upper end of the negative cover (5), the current collecting needle (6) is inserted into the inside of the electrically conductive jack (93), the bottom end of the second sealing rubber pad (96) is attached to the inside of the negative cover (5), the current collecting needle (6) protrudes from the upper end of the electrically conductive jack (93), and the insulating external threaded cylinder (91) protrudes from the lower end of the sealing end cover body (41).
6. A high constant-power discharge performance cylindrical alkaline battery according to claim 1, characterized by: The inside of the first rubber ring (45) and the outside of the second rubber ring (95) are tightly attached to the isolation tube (3), the upper end of the tapered cylinder (43) is in the shape of a hollow cone, and the tapered pressing plate (92) is in the shape of a hollow cone.
7. A high constant-power discharge performance cylindrical alkaline battery according to claim 1, characterized by: The structure of the second sealing end cover assembly (7) is the same as that of the first sealing end cover assembly (4), the upper end of the first auxiliary pressure joint assembly (8) protrudes the upper end of the second sealing end cover assembly (7), and a groove is formed on the inner side of the lower end of the battery positive cap (2) close to the first auxiliary pressure joint assembly (8), and part of the upper end of the first auxiliary pressure joint assembly (8) is inside the groove of the lower end of the battery positive cap (2).