Cylindrical high zinc chloride battery with high constant current discharge performance

Abstract

The utility model relates to the technical field of high-zinc-chloride batteries, in particular to a cylindrical high-zinc-chloride battery with high constant-current discharge performance, which comprises an aluminum shell, a positive terminal assembly arranged at the top end of the aluminum shell, a negative terminal arranged at the bottom end of the aluminum shell, and a pole core arranged at the center in the aluminum shell, the positive terminal assembly comprises a positive terminal cover, a damping fixing mechanism is fixedly arranged below the positive terminal cover, an anti-seismic buffering mechanism is installed below the damping fixing mechanism, the top of the pole core is located between the center of the damping fixing mechanism and the center of the anti-seismic buffering mechanism, and the top end of the pole core is attached to the bottom end of the positive terminal cover; the damping fixing mechanism comprises a fixing ring, a fixing disc is arranged on the outer side of the fixing ring, and a connecting block is arranged on the inner side of the fixing ring, the constant-current discharging performance and stability of the battery are remarkably improved, displacement of the internal structure of the battery under external acting force such as strong vibration is effectively prevented, and the problem that the pole core moves is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high zinc chloride battery technical field, specifically for a kind of high constant current discharge performance cylindrical high zinc chloride battery. BACKGROUND

[0002] High zinc chloride battery is a kind of battery with zinc chloride as main electrolyte component, a kind of battery that generates electric energy through specific chemical reaction, high zinc chloride battery can store more electric energy under the same volume, provide longer use time;

[0003] At present, the common cylindrical zinc-manganese battery on market has high zinc chloride battery and alkaline zinc-manganese battery, high zinc chloride battery takes zinc chloride solution as electrolyte main component, adds a small amount of ammonium chloride, diaphragm is pulp layer paper, can discharge in large current, is suitable for the electric appliance of large current continuous discharge;

[0004] However, the conventional high zinc chloride battery has certain limitation in constant current discharge performance, when subjected to strong vibration and other external forces, the internal structure of battery is prone to displacement, causes pole core to move, thereby affecting the discharge stability and constant current performance of battery, therefore, aiming at the above problems, a kind of high constant current discharge performance cylindrical high zinc chloride battery is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of high constant current discharge performance cylindrical high zinc chloride battery to solve the problem that when subjected to strong vibration and other external forces, the internal structure of battery is prone to displacement, causes pole core to move, thereby affecting the discharge stability and constant current performance of battery.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A kind of high constant current discharge performance cylindrical high zinc chloride battery, including aluminum shell, the top of the aluminum shell is provided with positive terminal assembly, the bottom of the aluminum shell is provided with negative terminal, the center of the aluminum shell inside is provided with pole core;The positive terminal assembly includes positive terminal cover, the lower part of the positive terminal cover is fixedly provided with damping fixing mechanism, the lower part of the damping fixing mechanism is installed with anti-vibration buffer mechanism, the top of the pole core is between the center of damping fixing mechanism and anti-vibration buffer mechanism, the top of the pole core is attached to the bottom of positive terminal cover;The damping fixing mechanism includes fixed ring, the outside of the fixed ring is provided with fixed disc, the inside of the fixed ring is provided with connecting block, the front end of the connecting block is fixedly connected with the damping spring leaf that provides good elasticity to pole core, the bottom end of the fixed ring is installed with arc cavity disc, the lower surface of the fixed disc is provided with limiting recess and positioning groove, the positioning groove is above the limiting recess.

[0008] As the further optimization of the utility model, wherein: the positive terminal cover includes end cover body, the outside of the top of the end cover body is fixedly connected with insulating disc, the side of the top of the insulating disc is clamped and connected with the top of the inside of aluminum shell, the surface of the end cover body is provided with air hole, the lower portion of the end cover body is provided with PVDF film with air permeability, the middle of the lower surface of the end cover body is fixedly connected with the top of the fixing ring.

[0009] As the further optimization of the utility model, wherein: the anti-vibration buffer mechanism includes anti-vibration buffer plate, the center of the anti-vibration buffer plate is provided with connecting groove, the upper surface of the anti-vibration buffer plate is fixedly connected with limiting convex ring, the top of the limiting convex ring is fixedly connected with a plurality of positioning blocks, a plurality of the positioning blocks are equidistantly arranged in circular arrangement.

[0010] As the further optimization of the utility model, wherein: the shape of the inside of the limiting recess is matched with the shape of the outside of the limiting convex ring, the limiting recess and the limiting convex ring are clamped and connected, the position of the positioning groove corresponds to the position of the positioning block.

[0011] As the further optimization of the utility model, wherein: the number of the connecting blocks is several, a plurality of the connecting blocks are equidistantly arranged in circular arrangement, the damping spring sheet is located at the center of the front end of the connecting block, the two sides of the damping spring sheet are mutually attached to the pole core.

[0012] As the further optimization of the utility model, wherein: the outside of the pole core is provided with anode filling body, the outside of the anode filling body is provided with annular side edge diaphragm, the outside of the side edge diaphragm is provided with cathode filling body, the top of the anode filling body and the cathode filling body is located at the same horizontal height.

[0013] As the further optimization of the utility model, wherein: the lower surface of the anti-vibration buffer plate is attached to the upper surface of the anode filling body and the upper surface of the cathode filling body, the anti-vibration buffer plate and the fixing disc are mutually parallel, there is interval between the upper surface of the fixing disc and the lower surface of the end cover body.

[0014] Compared with the prior art, the utility model has the advantages of:

[0015] In the utility model, through the setting of the positive terminal assembly, the damping fixing mechanism and the anti-vibration buffer mechanism, the constant current discharge performance and stability of the battery are improved, the displacement of the internal structure of the battery under the external force such as strong vibration is prevented, the pole core displacement problem is avoided, meanwhile, the combination of the PVDF film and the insulating disc ensures the normal exchange of the battery internal gas, balances the air pressure change, guarantees the safety of the battery, so that the battery has excellent constant current discharge performance, higher stability and reliability. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a section structure schematic view of the utility model;

[0018] Figure 3 It is an explosion structure schematic view of the positive terminal assembly of the utility model;

[0019] Figure 4 It is a section structure schematic view of the positive terminal cover of the utility model;

[0020] Figure 5 It is a section structure schematic view of the damping fixing mechanism of the utility model;

[0021] Figure 6 It is a structure schematic view of the utility model Figure 5 at A place;

[0022] Figure 7 It is a structure schematic view of the anti-vibration buffer mechanism of the utility model.

[0023] In the drawing: 1, aluminum shell;

[0024] 2, positive terminal assembly; 21, positive terminal cover; 211, end cover body; 212, insulating disc; 213, air hole; 214, PVDF film;

[0025] 22, damping fixing mechanism; 221, fixing ring; 222, fixing disc; 223, connecting block; 224, damping spring piece; 225, circular arc cavity disc; 226, limiting groove; 227, positioning groove;

[0026] 23, anti-vibration buffer mechanism; 231, anti-vibration buffer plate; 232, connecting groove; 233, limiting convex ring; 234, positioning block;

[0027] 3, negative terminal; 4, pole core; 5, anode filling body; 6, side edge diaphragm; 7, cathode filling body. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0030] Referring to Figures 1-7 The utility model provides a technical scheme:

[0031] A kind of high constant current discharge performance cylindrical high zinc chloride battery, including aluminum shell 1, the top of aluminum shell 1 is provided with positive terminal assembly 2, the bottom of aluminum shell 1 is provided with negative terminal 3, the center of aluminum shell 1 inside is provided with pole core 4;Positive terminal assembly 2 includes positive terminal cover 21, the lower side of positive terminal cover 21 is fixedly provided with damping fixed mechanism 22, the lower side of damping fixed mechanism 22 is installed with anti-shock buffer mechanism 23, the top of pole core 4 is between the center of damping fixed mechanism 22 and anti-shock buffer mechanism 23, the top of pole core 4 is attached with the bottom of positive terminal cover 21;Damping fixed mechanism 22 includes fixed ring 221, the outside of fixed ring 221 is provided with fixed disc 222, the inside of fixed ring 221 is provided with connecting block 223, the front end of connecting block 223 is fixedly connected with the damping spring piece 224 that provides good elasticity to pole core 4, the bottom end of fixed ring 221 is installed with arc cavity disc 225, the lower surface of fixed disc 222 is provided with limiting recess 226 and positioning groove 227, positioning groove 227 is located above limiting recess 226.

[0032] As the further implementation scheme of the scheme, positive terminal cover 21 includes end cover body 211, the outside of the top of end cover body 211 is fixedly connected with insulating disc 212, the top of insulating disc 212 is engagedly connected with the top of the inside of aluminum shell 1, the surface of end cover body 211 is provided with air hole 213, the lower side of end cover body 211 is installed with PVDF film 214 with gas permeability, the top of fixed ring 221 is fixedly connected with the middle of the lower surface of end cover body 211, so that the normal exchange of gas in the inside of aluminum shell 1 can be guaranteed, the gas pressure change caused by the gas generated in the inside of battery due to electrochemical reaction can be balanced, the safety of battery is guaranteed, the micropore of PVDF film 214 is also small enough, and PVDF film 214 can effectively intercept the particles of various fillers such as anode filling body 5 and cathode filling body 7, which is the physical property of PVDF film 214, to prevent them from leaking from air hole 213;

[0033] As a further implementation of the present scheme, the anti-vibration buffer mechanism 23 comprises an anti-vibration buffer plate 231 made of high-strength polycarbonate (PC), a connecting groove 232 is formed at the center of the anti-vibration buffer plate 231, a limiting convex ring 233 is fixedly connected to the upper surface of the anti-vibration buffer plate 231, a plurality of positioning blocks 234 are fixedly connected to the top end of the limiting convex ring 233, the plurality of positioning blocks 234 are equidistantly arranged in a circular arrangement, the shape of the inner side of the limiting groove 226 is matched with the shape of the outer side of the limiting convex ring 233, the limiting groove 226 and the limiting convex ring 233 are snap-connected, and the positions of the positioning grooves 227 correspond to the positions of the positioning blocks 234 in an up-down manner. In this way, the anti-vibration buffer mechanism 23 and the shock-absorbing fixing mechanism 22 are tightly connected.

[0034] As a further implementation of the present scheme, the number of the connecting blocks 223 is several, the plurality of connecting blocks 223 are equidistantly arranged in a circular arrangement, the shock-absorbing spring sheet 224 is located at the center of the front end of the connecting block 223, the two sides of the shock-absorbing spring sheet 224 are in close contact with the pole core 4, and the plurality of circular shock-absorbing spring sheets 224 provide support and shock absorption for the pole core 4.

[0035] As a further implementation of the present scheme, the outer side of the pole core 4 is provided with an anode filling body 5, the anode filling body 5 is mainly composed of zinc powder mixed with other additives, the outer side of the anode filling body 5 is provided with an annular side edge diaphragm 6, the outer side of the side edge diaphragm 6 is provided with a cathode filling body 7, the main component of the cathode filling body 7 is manganese dioxide, and ethylene black, graphite and other conductive agents are also added to enhance its conductivity, the top ends of the anode filling body 5 and the cathode filling body 7 are located at the same horizontal height, and the lower surface of the anti-vibration buffer plate 231 is in close contact with the upper surfaces of the anode filling body 5 and the cathode filling body 7. In this way, the anti-vibration buffer plate 231 is used to limit the anode filling body 5 and the cathode filling body 7.

[0036] As a further implementation of the present scheme, the anti-vibration buffer plate 231 and the fixed disc 222 are parallel to each other, and there is a gap between the upper surface of the fixed disc 222 and the lower surface of the end cover body 211. In this way, the vibration from the top side of the end cover body 211 will not directly affect the fixed disc 222 below.

[0037] Workflow: When the high constant current discharge performance cylindrical zinc chloride battery is connected to the electrical equipment to form a closed loop, the zinc powder in the anode filling body 5 is oxidized under the action of zinc chloride electrolyte, etc., zinc atoms (Zn) lose electrons to generate zinc ions (Zn2+) into the electrolyte, and the electrons are transmitted to the end cover body 211 through the pole core 4. Since the pole core 4 is in direct contact with the anode filling body 5, it can efficiently collect electrons, and the pole core 4 as a good conductor transmits the electrons generated by the anode to the top end of the end cover body 211. The shock absorbing spring sheet 224 in the shock absorbing fixing mechanism 22 is in direct contact with the pole core 4, and the shock absorbing spring sheet 224 arranged in a circular arrangement provides support and shock absorption for the pole core 4. Since the two sides of the rear end face of the shock absorbing spring sheet 224 are a certain distance away from the fixed ring 221, the elastic deformation of the shock absorbing spring sheet 224 caused by vibration provides a space for movement. The circular arc cavity disc 225 made of soft rubber material further constrains the pole core 4 to ensure stable operation of the pole core 4. At the same time, the anti-shock buffer plate 231 in the anti-shock buffer mechanism 23 is matched with the limiting recess 226 and the positioning groove 227 in the fixed disc 222 through the limiting convex ring 233 and the positioning block 234 on the upper surface, respectively. The anti-shock buffer mechanism 23 and the shock absorbing fixing mechanism 22 are tightly connected to improve the stability of the internal structure of the battery. The anti-shock buffer plate 231 is responsible for limiting the anode filling body 5 and the cathode filling body 7, avoiding displacement of the internal structure caused by vibration and affecting the discharge performance. In addition, the PVDF film 214 below the insulating disc 212 has excellent air permeability due to its unique microporous structure. This is a known material. Through the insulating disc 212 on the surface of the air hole 213, the normal exchange of gas in the aluminum shell 1 can be ensured, and the gas pressure change caused by the gas generated by the electrochemical reaction in the battery can be balanced to ensure the safety of the battery.

[0038] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cylindrical high-zinc-chloride battery with high constant current discharge performance, comprising an aluminum shell (1), characterized in that: The top end of the aluminum shell (1) is provided with a positive terminal assembly (2), the bottom end of the aluminum shell (1) is provided with a negative terminal (3), and the center of the inside of the aluminum shell (1) is provided with a core (4); The positive terminal assembly (2) comprises a positive terminal cover (21), a damping fixing mechanism (22) is fixedly arranged below the positive terminal cover (21), a shock-resistant buffer mechanism (23) is mounted below the damping fixing mechanism (22), the top of the core (4) is located between the center of the damping fixing mechanism (22) and the shock-resistant buffer mechanism (23), and the top end of the core (4) is attached to the bottom end of the positive terminal cover (21). The damping fixing mechanism (22) comprises a fixed ring (221), a fixed disc (222) is arranged on the outer side of the fixed ring (221), a connecting block (223) is arranged on the inner side of the fixed ring (221), a damping spring leaf (224) providing good elasticity for the core (4) is fixedly connected to the front end of the connecting block (223), a circular arc cavity disc (225) is mounted at the bottom end of the fixed ring (221), a limiting groove (226) and a positioning groove (227) are formed in the lower surface of the fixed disc (222), and the positioning groove (227) is located above the limiting groove (226).

2. A cylindrical high-zinc-chloride battery with high constant current discharge performance according to claim 1, characterized in that: The positive terminal cover (21) comprises a cover body (211), an insulating disc (212) is fixedly connected to the outer side of the top end of the cover body (211), the edge side of the top end of the insulating disc (212) is clamped and connected to the inner side of the top end of the aluminum shell (1), air holes (213) are formed in the surface of the cover body (211), a PVDF film (214) with air permeability is mounted below the cover body (211), and the top end of the fixed ring (221) is fixedly connected to the middle of the lower surface of the cover body (211).

3. A cylindrical high-zinc-chloride cell with high constant current discharge performance according to claim 1, characterized in that: The shock-resistant buffer mechanism (23) comprises a shock-resistant buffer plate (231), a connecting groove (232) is formed in the center of the shock-resistant buffer plate (231), a limiting convex ring (233) is fixedly connected to the upper surface of the shock-resistant buffer plate (231), a plurality of positioning blocks (234) are fixedly connected to the top end of the limiting convex ring (233), and the plurality of positioning blocks (234) are equidistantly arranged in a circular arrangement.

4. A cylindrical high-zinc-chloride cell with high constant current discharge performance according to claim 1, characterized in that: The shape of the inner side of the limiting groove (226) is matched with the shape of the outer side of the limiting convex ring (233), the limiting groove (226) and the limiting convex ring (233) are clamped and connected, and the positions of the positioning groove (227) and the positioning block (234) correspond to each other.

5. A cylindrical high-zinc-chloride cell with high constant current discharge performance according to claim 1, characterized in that: The number of the connecting blocks (223) is several, the plurality of connecting blocks (223) are equidistantly arranged in a circular arrangement, the damping spring leaf (224) is located at the center of the front end of the connecting block (223), and the two sides of the damping spring leaf (224) are attached to each other.

6. A cylindrical high-zinc-chloride cell with high constant current discharge performance according to claim 1, characterized in that: The outer side of the pole core (4) is provided with an anode filling body (5), the outer side of the anode filling body (5) is provided with an annular side edge diaphragm (6), the outer side of the side edge diaphragm (6) is provided with a cathode filling body (7), and the top ends of the anode filling body (5) and the cathode filling body (7) are at the same horizontal height.

7. A cylindrical high-zinc-chloride cell with high constant current discharge performance according to claim 3, characterized in that: The lower surface of the anti-shock buffer plate (231) is attached to the upper surfaces of the anode filling body (5) and the cathode filling body (7), the anti-shock buffer plate (231) and the fixing disc (222) are parallel to each other, and there is a gap between the upper surface of the fixing disc (222) and the lower surface of the end cover body (211).

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