A zinc-manganese battery leak-proof structure

Abstract

The invention relates to a zinc-manganese battery leakage prevention structure in the field of zinc-manganese batteries. The structure buffers and uniformly distributes the extrusion force suffered by the circumferential side wall of the zinc cylinder by multiple groups of anti-compression rings whose middle parts are recessed toward the center and are nested in a zinc cylinder, thereby improving the anti-compression capability of the zinc-manganese battery and reducing the possibility of electrolyte leakage caused by compression deformation of the battery. Meanwhile, a buckle ring arranged at the upper opening of the zinc cylinder and an upper end cover having an inner ring part and an outer ring part are used. When the upper extrusion ring transmits the extrusion force suffered by the anti-compression ring to the buckle ring, the inner ring part and the outer ring part clamped on the inner and outer sides of the buckle ring are used to horizontally clamp the buckle ring on both sides, thereby preventing the buckle ring from turning inward or outward, realizing tight fixation of the upper end cover, and preventing electrolyte leakage caused by the upper end cover detaching due to compression of the battery.

Description

Technical Field

[0001] The invention relates to a battery structure, in particular to a zinc-manganese battery leakage prevention structure applied to the zinc-manganese battery field. Background Art

[0002] Zinc-manganese battery is a primary battery with manganese dioxide as the positive electrode, zinc as the negative electrode, and ammonium chloride aqueous solution as the main electrolyte. According to the structure, it is divided into: the gel formed by flour, starch and electrolyte as the isolation layer between the positive and negative electrodes is called a paste battery; the one using pulp paper as the isolation layer is called a cardboard battery; the one using polymer film material as the isolation layer is called a thin film battery.

[0003] In daily use, when the zinc cylinder is squeezed, it is easy to deform or cause internal short circuit and heat, thereby increasing the internal pressure and leading to electrolyte leakage. Summary of the invention

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the conventional zinc-manganese battery is prone to electrolyte leakage when being squeezed by external force.

[0005] In order to solve the above problems, the present invention provides a zinc-manganese battery leakage prevention structure, including a zinc cylinder, an upper end cover made of insulating material is clamped on the upper end of the zinc cylinder, a carbon rod extending into the zinc cylinder is penetrated through the upper end cover, a conductive cap fixedly connected to the upper end cover is connected to the upper end of the carbon rod, a manganese column cylinder is sleeved on the outer side of the carbon rod, an upper insulating sealing disk abutting against the upper end cover is abutted on the upper end of the manganese column cylinder, an upper extrusion ring slidingly abutting against the inner wall of the zinc cylinder is sleeved on the outer side of the upper extrusion ring, and a plurality of conductive caps are embedded in the zinc cylinder. A group of anti-pressure rings abutting each other, the cavity formed between the anti-pressure ring and the manganese column tube is filled with electrolyte; a buckle ring bent inwardly is provided at the upper opening of the zinc tube, an outer ring part distributed on the outside of the buckle ring and an inner ring part arranged on the inner side of the buckle ring are provided on the upper end cover, an upper extrusion ring is provided with an upper ring part sleeved on the outer ring part and a lower ring part sleeved on the lower end surface of the upper insulating sealing disk, the lower ring part abuts against the anti-pressure ring, the anti-pressure ring is a circular ring tube with an inward concave middle part, and deformation in the vertical direction occurs when the anti-pressure ring is squeezed.

[0006] In the zinc-manganese battery anti-leakage structure, the compression resistance of the zinc-manganese battery and the locking degree of the upper end cover are improved by the compression ring, the upper end cover with the inner ring part and the outer ring part, and the zinc cylinder with the buckle ring.

[0007] As a further improvement of the present application, a lower insulating sealing disk is abutted against the lower part of the manganese column tube, and a lower extrusion ring abutting against the pressure-resistant ring is abutted against the upper end of the lower insulating sealing disk. Both the lower insulating sealing disk and the upper insulating sealing disk are made of elastic insulating material.

[0008] As a further improvement of the present application, a support plate distributed in a circular pattern is fixedly connected to the inner side of the pressure-resistant ring, an outer support ring is fixedly connected to the inner side of the support plate, a polygonal ring is fixedly connected to the inner side of the outer support ring, and an inner support ring sleeved on the outer side of the manganese column is fixedly connected to the inner side of the polygonal ring.

[0009] As a further improvement of the present application, the upper end cover includes a disc portion, and the outer ring portion and the inner ring portion are integrally formed with the disc portion, and a through hole for the carbon rod to pass through is opened in the middle of the disc portion.

[0010] As a further improvement of the present application, an inner annular groove for inserting a retaining ring is formed between the outer ring portion and the inner ring portion, a first sealing ring abutting against the retaining ring is nested in the inner annular groove, an outer annular groove is formed between the retaining ring and the inner wall of the zinc cylinder, the outer ring portion and the upper ring portion are both inserted in the outer annular groove, and a second sealing ring abutting against the upper ring portion is nested in the outer annular groove.

[0011] As a further improvement of the present application, the anti-pressure ring is a cylindrical structure with an arc-shaped cross-section, and an annular external compression chamber is formed between the anti-pressure ring and the inner wall of the zinc cylinder.

[0012] As a further improvement of the present application, a lower compression chamber distributed in a circular pattern is provided on one side of the lower insulating sealing disk near the circumferential end surface, and an upper compression chamber distributed in a circular pattern is provided on one side of the upper insulating sealing disk near the circumferential end surface. Both the upper compression chamber and the lower compression chamber are vertically arranged and spindle-shaped compression chambers.

[0013] As a further improvement of the present application, the anti-compression ring, the outer support ring and the polygonal ring are all made of insulating elastic materials, and the support plate and the inner support ring are both made of insulating rigid materials.

[0014] In summary, the present invention buffers and evenly distributes the extrusion force exerted on the circumferential side wall of the zinc cylinder by nesting multiple groups of anti-compression rings with the middle parts recessed toward the center in the zinc cylinder, thereby improving the anti-compression ability of the zinc-manganese battery and reducing the possibility of electrolyte leakage caused by compression and deformation of the battery; at the same time, through the buckle ring arranged at the upper opening of the zinc cylinder and the upper end cover with an inner ring part and an outer ring part, when the upper extrusion ring transmits the extrusion force exerted on the anti-compression ring to the buckle ring, the inner ring part and the outer ring part clamped on the inner and outer sides of the buckle ring are used to horizontally clamp the buckle ring on both sides, so as to avoid the buckle ring from turning inward or outward, realize the tight fixation of the upper end cover, and avoid the electrolyte leakage caused by the detachment of the upper end cover due to the pressure on the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the three-dimensional structure of this application;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of this application;

[0017] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 4 This is a schematic diagram of the assembly structure of the upper end cover in this application;

[0019] Figure 5 This is a schematic diagram of the assembly of the internal compression ring of the zinc cylinder in this application;

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the anti-compression ring in this application;

[0021] Figure 7 It is a schematic diagram of the cross-sectional structure of the anti-compression ring in this application;

[0022] Figure 8 This is a schematic diagram of the state when the circumferential side wall of the zinc cylinder is subjected to force in this application;

[0023] Fig. 9 It is a schematic diagram of the force on the buckle ring when the circumferential side wall of the zinc cylinder is subjected to force in this application;

[0024] Fig.10 for Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0025] Fig.11 A three-dimensional diagram of a lower extrusion ring and a lower insulating sealing disk in the present application;

[0026] Fig.12 It is a horizontal cross-sectional view of the lower insulating sealing disk in the present application;

[0027] Fig.13 It is a schematic diagram of the force of the upper insulating sealing disk during extrusion in this application;

[0028] Fig.14 It is a schematic diagram of the force on the insulating sealing disk during extrusion in this application.

[0029] Description of the numbers in the figure:

[0030] 1. Zinc cylinder; 101. Buckle; 2. Upper end cover; 201. Disc; 202. Outer ring; 203. Inner ring; 3. Carbon rod; 4. Manganese column; 5. Conductive cap; 6. Electrolyte; 7. Upper insulating sealing disk; 701. Upper compression chamber; 8. Anti-pressure ring; 801. Outer compression chamber; 9. Upper extrusion ring; 901. Lower ring; 902. Upper ring; 10. First sealing ring; 11. Second sealing ring; 12. Support plate; 13. Outer support ring; 14. Polygonal ring; 15. Inner support ring; 16. Lower insulating sealing disk; 1601. Lower compression chamber; 17. Lower extrusion ring. DETAILED DESCRIPTION

[0031] The following describes two implementation modes of the present application in detail with reference to the accompanying drawings.

[0032] The first implementation method:

[0033] Figure 1-9 A zinc-manganese battery leakage prevention structure is shown, comprising a zinc cylinder 1, an upper end cover 2 made of insulating material is clamped on the upper end of the zinc cylinder 1, a carbon rod 3 extending into the zinc cylinder 1 is penetrated by the upper end cover 2, a conductive cap 5 fixedly connected to the upper end cover 2 is connected to the upper end of the carbon rod 3, a manganese column cylinder 4 is sleeved on the outer side of the carbon rod 3, an upper insulating sealing disk 7 abutting against the upper end cover 2 is abutted on the upper end of the manganese column cylinder 4, an upper extrusion ring 9 slidingly abutting against the inner wall of the zinc cylinder 1 is sleeved on the outer side of the upper insulating sealing disk 7, a plurality of groups of mutually abutting anti-pressure rings 8 nested in the zinc cylinder 1 are connected to the bottom below the upper extrusion ring 9, and an electrolyte 6 is perfused in the cavity formed between the anti-pressure ring 8 and the manganese column cylinder 4;

[0034] An inwardly bent buckle ring 101 is provided at the upper opening of the zinc cylinder 1, an outer ring portion 202 distributed on the outside of the buckle ring 101 and an inner ring portion 203 arranged on the inner side of the buckle ring 101 are provided on the upper end cover 2, an upper extrusion ring 9 is provided with an upper ring portion 902 sleeved on the outer ring portion 202 and a lower ring portion 901 sleeved on the lower end surface of the upper insulating sealing disk 7, the lower ring portion 901 is in contact with the anti-pressure ring 8, the anti-pressure ring 8 is a circular ring cylinder with an inward concave middle portion, and is deformed in the vertical direction when the anti-pressure ring 8 is squeezed.

[0035] For details, please refer to Figure 8 and Fig. 9 When the circumferential side wall of the zinc cylinder 1 is squeezed, the inner wall of the zinc cylinder 1 squeezes the anti-pressure ring 8, and the anti-pressure ring 8 is deformed in the vertical direction, thereby buffering the extrusion force, improving the compression resistance of the zinc cylinder 1, and preventing the zinc cylinder 1 from being over-deformed and causing the electrolyte to overflow after being compressed; at the same time, when the anti-pressure ring 8 is deformed in the vertical direction, multiple groups of anti-pressure rings 8 buffer and unload force from each other, further improving the compression resistance. In addition, the uppermost anti-pressure ring 8 squeezes the upper extrusion ring 9, and the upper extrusion ring 9 squeezes the buckle ring 101. At the same time, the upper extrusion ring 9 squeezes the upper end cover 2 through the upper insulating sealing disk 7. Since the upper end cover 2 is provided with an inner ring portion 203 and an outer ring portion 202 clamped on both sides of the buckle ring 101, the inner ring portion 203 and the outer ring portion 202 cooperate to clamp the buckle ring 101 horizontally, preventing the buckle ring 101 from turning inward or outward, causing the upper end cover 2 to separate from the upper opening of the zinc cylinder 1, causing the electrolytic flow to leak out.

[0036] Compared with the traditional zinc-manganese battery, the present invention is provided with a plurality of groups of anti-compression rings 8 with the middle part recessed toward the center which are nested in the zinc cylinder 1, so as to buffer and evenly distribute the extrusion force on the circumferential side wall of the zinc cylinder 1, thereby improving the anti-extrusion ability of the zinc-manganese battery and reducing the possibility of electrolyte leakage due to battery pressure. At the same time, through the buckle ring 101 arranged at the upper opening of the zinc cylinder 1 and the upper end cover 2 having the inner ring part 203 and the outer ring part 202, when the upper extrusion ring 9 transmits the extrusion force on the anti-compression ring 8 to the buckle ring 101, the inner ring part 203 and the outer ring part 202 clamped on the inner and outer sides of the buckle ring 101 are used to horizontally clamp the buckle ring 101 on both sides, so as to prevent the buckle ring 101 from turning inward or outward, thereby realizing the tight fixation of the upper end cover 2 and preventing the electrolyte leakage caused by the detachment of the upper end cover 2 due to battery pressure.

[0037] See also Figure 2 and Figure 3 The upper end cover 2 includes a disc portion 201, an outer ring portion 202 and an inner ring portion 203 which are integrally formed with the disc portion 201, and a through hole for the carbon rod 3 to pass through is provided in the middle of the disc portion 201.

[0038] See also Figure 2 An inner annular groove is formed between the outer ring portion 202 and the inner ring portion 203 for inserting the buckle 101, and a first sealing ring 10 abutting against the buckle 101 is nested in the inner annular groove. An outer annular groove is formed between the buckle 101 and the inner wall of the zinc cylinder 1, and the outer ring portion 202 and the upper ring portion 902 are both inserted in the outer annular groove, and a second sealing ring 11 abutting against the upper ring portion 902 is nested in the outer annular groove.

[0039] Specifically, by providing an inner annular groove, an outer annular groove, a first sealing ring 10 and a second sealing ring 11, the upper end cover 2 and the zinc cylinder 1 are tightly clamped, and the first sealing ring 10 and the second sealing ring 11 provide further buffering for the contact and extrusion positions of the buckle 101, the upper end cover 2 and the upper extrusion ring 9, while improving the sealing effect, further reducing the possibility of leakage of the electrolyte.

[0040] See also Figure 2 The anti-pressure ring 8 is a cylindrical structure with an arc-shaped cross section, and an annular external compression chamber 801 is formed between the anti-pressure ring 8 and the inner wall of the zinc cylinder 1.

[0041] Specifically, when the zinc cylinder 1 is squeezed, the anti-compression ring 8 deforms in the vertical direction and performs circumferential unloading, so that the local impact force of the zinc cylinder 1 is evenly distributed circumferentially. In addition, the compression chamber 801 is compressed, thereby expanding the volume of the electrolyte 6 contained in the zinc cylinder 1, reducing the pressure of the electrolyte 6 after being compressed, and reducing leakage.

[0042] See also Figure 6 and Figure 7A support plate 12 distributed in a circumference is fixedly connected to the inner side of the pressure-resistant ring 8, an outer support ring 13 is fixedly connected to the inner side of the support plate 12, a polygonal ring 14 is fixedly connected to the inner side of the outer support ring 13, and an inner support ring 15 sleeved on the outer side of the manganese column tube 4 is fixedly connected to the inner side of the polygonal ring 14.

[0043] In this embodiment, the compression ring 8, the outer support ring 13 and the polygonal ring 14 are all made of insulating elastic materials, and the support plate 12 and the inner support ring 15 are both made of insulating rigid materials.

[0044] Specifically, the support structure composed of the support plate 12 , the outer support ring 13 , the polygonal ring 14 and the inner support ring 15 provides multiple buffer supports for the anti-pressure ring 8 , further improving the compression resistance of the zinc cylinder 1 while providing support, buffering and protection for the manganese column cylinder 4 .

[0045] Second implementation method:

[0046] Figure 2 , Figure 10-14 A zinc-manganese battery leakage prevention structure is shown. Based on the first embodiment, a lower insulating sealing disk 16 is abutted against the lower portion of the manganese column tube 4, and a lower extrusion ring 17 abutting against the anti-pressure ring 8 is abutted against the upper end of the lower insulating sealing disk 16. The lower insulating sealing disk 16 and the upper insulating sealing disk 7 are both made of elastic insulating materials.

[0047] For details, please refer to Fig.13 and Fig.14 When external force occurs in the upper or lower part of the battery, the anti-compression ring 8 is vertically compressed to buffer the external force. At the same time, the lower insulating sealing disk 16 and the upper insulating sealing disk 7 are compressed to further provide buffering. In addition, after the lower insulating sealing disk 16 and the upper insulating sealing disk 7 are compressed, the volume of the electrolyte 6 accommodating chamber in the zinc cylinder 1 is increased, the pressure increase of the electrolyte 6 is reduced, and the possibility of leakage of the electrolyte 6 is reduced.

[0048] See also Figure 10-13 The lower insulating sealing disk 16 is provided with a circumferentially distributed lower compression chamber 1601 on one side near the circumferential end surface, and the upper insulating sealing disk 7 is provided with a circumferentially distributed upper compression chamber 701 on one side near the circumferential end surface. Both the upper compression chamber 701 and the lower compression chamber 1601 are vertically arranged and spindle-shaped compression chambers.

[0049] For details, please refer to Fig.13 and Fig.14By setting the upper compression chamber 701 and the lower compression chamber 1601 which are equidistantly distributed around the circumference and are spindle-shaped, the horizontal deformation of the lower insulating sealing disk 16 and the upper insulating sealing disk 7 is increased when they are compressed by pressure in the vertical direction, thereby increasing the extrusion pressure at the contact position between the lower insulating sealing disk 16 and the inner wall of the zinc cylinder 1, thereby improving the sealing effect. Similarly, by increasing the horizontal deformation of the upper insulating sealing disk 7, the sealing pressure at the contact surface between the upper insulating sealing disk 7 and the upper extrusion ring 9 and the contact surface of the carbon rod 3 is increased, thereby improving the sealing effect.

[0050] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A zinc-manganese battery leakage prevention structure, characterized in that: The zinc cylinder (1) comprises a zinc cylinder (1), the upper end of which is clamped with an upper end cover (2) made of an insulating material, the upper end cover (2) penetrates a carbon rod (3) extending into the zinc cylinder (1), the upper end of the carbon rod (3) is connected to a conductive cap (5) fixedly connected to the upper end cover (2), a manganese column cylinder (4) is sleeved on the outer side of the carbon rod (3), an upper insulating sealing disk (7) abutting against the upper end cover (2) is abutted against the upper end of the manganese column cylinder (4), an upper extrusion ring (9) slidably abutted against the inner wall of the zinc cylinder (1) is sleeved on the outer side of the upper insulating sealing disk (7), a plurality of groups of mutually abutting anti-pressure rings (8) nested in the zinc cylinder (1) are abutted against the lower side of the upper extrusion ring (9), and an electrolyte (6) is poured into the cavity formed between the anti-pressure ring (8) and the manganese column cylinder (4); The zinc cylinder (1) is provided with an inwardly bent buckle ring (101) at the upper opening, the upper end cover (2) is provided with an outer ring portion (202) distributed on the outer side of the buckle ring (101) and an inner ring portion (203) arranged on the inner side of the buckle ring (101), the upper extrusion ring (9) is provided with an upper ring portion (902) sleeved on the outer ring portion (202) and a lower ring portion (901) sleeved on the lower end surface of the upper insulating sealing disk (7), the lower ring portion (901) is in contact with the anti-pressure ring (8), the anti-pressure ring (8) is a circular ring cylinder with a middle portion inwardly concave, and when the anti-pressure ring (8) is squeezed, it deforms in the vertical direction; The anti-pressure ring (8) is a cylindrical structure with an arc-shaped cross section, and an annular external compression chamber (801) is formed between the anti-pressure ring (8) and the inner wall of the zinc cylinder (1).

2. The zinc-manganese battery leakage prevention structure according to claim 1, characterized in that: The lower portion of the manganese column tube (4) is in contact with a lower insulating sealing disk (16), and the upper end of the lower insulating sealing disk (16) is in contact with a lower extrusion ring (17) that is in contact with the anti-pressure ring (8). The lower insulating sealing disk (16) and the upper insulating sealing disk (7) are both made of elastic insulating material.

3. A zinc-manganese battery leakage prevention structure according to claim 2, characterized in that: The inner side of the pressure-resistant ring (8) is fixedly connected to a support plate (12) distributed in a circumferential manner, the inner side of the support plate (12) is fixedly connected to an outer support ring (13), the inner side of the outer support ring (13) is fixedly connected to a polygonal ring (14), and the inner side of the polygonal ring (14) is fixedly connected to an inner support ring (15) sleeved on the outer side of the manganese column tube (4).

4. The zinc-manganese battery leakage prevention structure according to claim 1, characterized in that: The upper end cover (2) comprises a disc portion (201), an outer ring portion (202) and an inner ring portion (203) which are integrally formed with the disc portion (201), and a through hole for the carbon rod (3) to pass through is provided in the middle of the disc portion (201).

5. The zinc-manganese battery leakage prevention structure according to claim 1, characterized in that: An inner annular groove for inserting the buckle ring (101) is formed between the outer annular portion (202) and the inner annular portion (203), a first sealing ring (10) abutting against the buckle ring (101) is nested in the inner annular groove, an outer annular groove is formed between the buckle ring (101) and the inner wall of the zinc cylinder (1), the outer annular portion (202) and the upper annular portion (902) are both inserted into the outer annular groove, and a second sealing ring (11) abutting against the upper annular portion (902) is nested in the outer annular groove.

6. The zinc-manganese battery leakage prevention structure according to claim 2, characterized in that: The lower insulating sealing disk (16) is provided with a circumferentially distributed lower compression chamber (1601) on one side close to the circumferential end surface, and the upper insulating sealing disk (7) is provided with a circumferentially distributed upper compression chamber (701) on one side close to the circumferential end surface. Both the upper compression chamber (701) and the lower compression chamber (1601) are vertically arranged and spindle-shaped compression chambers.

7. The zinc-manganese battery leakage prevention structure according to claim 3, characterized in that: The anti-pressure ring (8), the outer support ring (13) and the polygonal ring (14) are all made of insulating elastic materials, and the support plate (12) and the inner support ring (15) are both made of insulating rigid materials.

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