CN213878231U

CN213878231U - Lithium battery cover plate convenient to disassemble and lithium battery thereof

Info

Publication number: CN213878231U
Application number: CN202022210058.2U
Authority: CN
Inventors: 梁子辉; 张珂欣
Original assignee: Daqing Huigu Energy Technology Co ltd
Current assignee: Daqing Huigu Energy Technology Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-08-03
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a lithium battery cover plate convenient to disassemble and a lithium battery thereof, which belong to the technical field of lithium batteries, and comprise a cover plate, an injection molding plate, an electric core protective cover and a shell main body, wherein the cover plate covers the top surface of the injection molding plate; the utility model discloses a battery core protection cover, including the electricity core protection cover, the electricity core protection cover is fixed with explosion-proof valve, the geometric centre of apron puts and is fixed with explosion-proof valve, a lateral angle of explosion-proof valve is provided with annotates the liquid hole, the geometric centre department of moulding plastics the board is provided with first through-hole, a lateral angle of first through-hole is provided with the second through-hole, the axle center department both sides of apron and the board of moulding plastics are symmetry respectively and are provided with negative pole subassembly and positive pole subassembly, the outside four borders of electric core protection casing all are provided with the spout, the inner wall four borders of shell main part all are provided with the slide rail, electric core protection casing cup joints mutually with shell main part activity through spout and the mutual joint of slide rail. The utility model discloses the assembly and disassembly is convenient, and the process is simple, has improved work efficiency, has reduced artifical and goods and materials cost.

Description

Lithium battery cover plate convenient to disassemble and lithium battery thereof

Technical Field

The utility model relates to a lithium cell technical field specifically is a lithium cell apron convenient to dismantle and lithium cell thereof.

Background

A lithium battery is a battery using a nonaqueous electrolyte solution and lithium metal or a lithium alloy as a negative electrode material, and therefore such a battery is also called a lithium metal battery. Unlike other batteries, lithium batteries have the characteristics of high charge density, long service life, high unit cost and the like. Lithium batteries can generate a voltage of 1.5V (equivalent to a zinc-carbon or alkaline battery) to 3.7V depending on structural design and electrode materials, and are classified into primary batteries and secondary batteries depending on battery configurations. Early lithium batteries were primary batteries, but because of their chemical properties, metallic lithium has very high environmental requirements for processing, storage, and use, and has not been widely used after the invention. With the development of microelectronic technology at the end of the twentieth century, miniaturized devices are increasing day by day, higher requirements are put on power supplies, and lithium batteries enter a large-scale practical stage. Currently, the most common lithium battery structure for consumers uses metal lithium as a negative electrode, manganese dioxide as a positive electrode, and lithium salt dissolved in an organic solvent as an electrolyte.

Lithium batteries find use in many long-life critical devices, such as pacemakers and other implantable electronic medical devices, which use special lithium iodine batteries designed to have a life of 15 years or more, but for other less important applications, such as toys, lithium batteries may have a longer life than the device; lithium batteries can replace ordinary alkaline batteries in many devices, such as clocks and cameras; lithium batteries are also widely used in instruments and equipment which need to be used for a long time and cannot be replaced, such as ocean-going scientific instruments; small lithium batteries are commonly used in small portable electronic devices such as PDAs, watches, video cameras, digital cameras, thermometers, calculators, computer BIOS, communication devices, and remote car locks; the characteristics of high current, high energy density, and longer-lasting high voltage than alkaline batteries make lithium batteries a particularly attractive choice.

In the processing production process of lithium cell on the existing market, lithium cell apron and lithium cell utmost point post base are separately production usually, finally through installation and lithium cell fixed together, become a whole, not only the production process is loaded down with trivial details complicated, and the lithium cell is changed the difficulty, and the increase cost burden still causes worker people's equipment and disassembly's the degree of difficulty simultaneously, has both reduced work efficiency, has increased the labour cost again.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium cell apron convenient to dismantle and lithium cell thereof to in the processing production process of lithium cell on the present market who proposes in solving above-mentioned background, lithium cell apron and lithium cell utmost point post base are separately production usually, finally through installation and lithium cell fixed together, become a whole, not only the production process is loaded down with trivial details complicated, the lithium cell is changed the difficulty, increase cost burden, still cause the degree of difficulty of worker's equipment dismantlement simultaneously, work efficiency has both been reduced, the problem of the labour cost has been increased again.

In order to achieve the above object, the utility model provides a following technical scheme:

a lithium battery cover plate convenient to disassemble and a lithium battery thereof comprise a cover plate, an injection molding plate, a battery cell protective cover and a shell main body, wherein the cover plate covers the top surface of the injection molding plate;

the anti-explosion valve is fixed at the geometric center of the cover plate, a liquid injection hole is formed in one side angle of the anti-explosion valve, a first through hole is formed in the geometric center of the injection molding plate, a second through hole is formed in one side angle of the first through hole, a limiting column is arranged around the upper end face of the injection molding plate, the injection molding plate is clamped with the positioning holes formed in the surrounding ring of the lower end face of the cover plate through the limiting column, a negative electrode assembly and a positive electrode assembly are symmetrically arranged on two sides of the axis of the cover plate and the injection molding plate respectively, the negative electrode assembly comprises a negative electrode base and a negative electrode gland, the negative electrode base and the negative electrode gland are fixedly arranged on one side of the axis of the upper end faces of the injection molding plate and the cover plate respectively, the negative electrode base and the negative electrode gland are clamped and adapted with each other, the positive electrode assembly comprises a positive electrode base and a positive electrode gland, the positive electrode base and the positive electrode gland are fixedly arranged on the other side of the axis of the upper end faces of the injection molding plate and the cover plate respectively, the positive base and the positive gland are mutually clamped and matched;

the four outside borders of electricity core protection casing all are provided with the spout, just the spout indent in the surface of electricity core protection casing, the four borders of inner wall of shell main part all are provided with the slide rail, just the slide rail evagination in the internal surface of shell main part, just electricity core protection casing passes through the spout with the mutual joint of slide rail with shell main part activity cup joints mutually.

As a further aspect of the present invention: the explosion-proof valve penetrates through the cover plate and extends into the first through hole, and the liquid injection hole and the second through hole are located at the same vertical position and are correspondingly matched with each other.

As a further aspect of the present invention: the utility model discloses a shell, including apron, injection molding plate, first counter sink, second counter sink, screw hole, first counter sink, second counter sink, apron four corners are provided with first counter sink, the four corners of injection molding plate is provided with the second counter sink, the top four corners of shell main part is provided with the screw hole, the apron runs through from last to down in proper order through the fastening bolt that is equipped with on it first counter sink and second counter sink to threaded connection is in the screw hole.

As a further aspect of the present invention: the periphery of injection molding board bottom is provided with the upper groove edge of sealing washer, the top of shell main part is encircled all around and is equipped with the lower groove edge of sealing washer, the upper groove edge of sealing washer and the lower groove edge of sealing washer are along mutual adaptation.

As a further aspect of the present invention: the top of negative pole base is provided with negative pole post, the top center fixedly connected with negative pole metal contact of negative pole post, negative pole post runs through the negative pole gland extends to the top of apron.

As a further aspect of the present invention: the top of anodal base is provided with anodal utmost point post, the top center fixedly connected with anodal metal contact of anodal utmost point post, anodal utmost point post runs through anodal gland extends to the top of apron.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, through the mutual joint cooperation of spout and slide rail, the electric core protection casing of being convenient for cup joints in shell main part inner chamber and slides, not only carries out effectual protection to the lithium cell, still makes its processing of being convenient for take and change.

2. The utility model discloses in, the shell main part is equipped with the sealing washer through the top all around and goes up the groove along being provided with the sealing washer with the injection molding board bottom and go up the groove along mutual adaptation, not only makes apron and shell main part link up closely, and the holistic gas tightness of improve equipment prevents effectively that the inside electrolyte of lithium cell from leaking, and the while is through with explosion-proof valve joint to first through-hole, effectively prevents the inside large granule blasting of battery, has improved the security of lithium cell.

3. The utility model discloses in, mould the board through spacing post and apron under the locating hole mutual block that the ring all around of terminal surface was equipped with, realize apron and the board of moulding plastics and realize the integral type installation, it is convenient not only to make the installation dismantle, still increases its fastness, fastening bolt from last to running through the first counter sink on the apron and the second counter sink on the board of moulding plastics down in proper order to in the screw hole of threaded connection in the shell main part, fastening bolt and screw hole interference fit simultaneously, the equipment is direct, it is convenient to dismantle.

Drawings

FIG. 1 is an exploded view of the overall structure of the present invention;

FIG. 2 is a schematic view of the whole structure of the cover plate and the injection molding plate of the present invention;

FIG. 3 is a bottom view of the injection molding plate of the present invention;

FIG. 4 is an exploded view of the cover plate and the injection molded plate of the present invention;

fig. 5 is the local structure schematic diagram of the battery cell protective cover and the housing main body of the present invention.

In the figure: 1. fastening a bolt; 2. a cover plate; 201. an explosion-proof valve; 202. a liquid injection hole; 203. a first counterbore; 3. injection molding a plate; 301. a first through hole; 302. a second through hole; 303. a second counterbore; 304. the upper groove edge of the sealing ring; 4. a battery cell protective cover; 401. a chute; 5. a housing main body; 501. a slide rail; 502. a threaded hole; 503. the lower groove edge of the sealing ring; 6. a negative electrode assembly; 601. a negative electrode base; 602. a negative electrode post; 603. a negative metal contact; 604. a negative electrode gland bush; 7. a positive electrode assembly; 701. a positive electrode base; 702. a positive pole column; 703. a positive metal contact; 704. and a positive electrode gland.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 5, in an embodiment of the present invention, a lithium battery cover plate convenient to disassemble and a lithium battery thereof include a cover plate 2, an injection molding plate 3, a battery cell protection cover 4 and a housing main body 5, wherein the cover plate 2 covers a top surface of the injection molding plate 3, the injection molding plate 3 is movably mounted above the housing main body 5, and the battery cell protection cover 4 is disposed in an inner cavity of the housing main body 5;

the anti-explosion valve 201 is fixed at the geometric center of the cover plate 2, a liquid injection hole 202 is arranged at one side corner of the anti-explosion valve 201, a first through hole 301 is arranged at the geometric center of the injection plate 3, a second through hole 302 is arranged at one side corner of the first through hole 301, a limit post 305 is arranged around the upper end surface of the injection plate 3, the injection plate 3 is mutually clamped with a positioning hole arranged around the lower end surface of the cover plate 2 through the limit post 305, a negative electrode component 6 and a positive electrode component 7 are respectively and symmetrically arranged at two sides of the axial center of the cover plate 2 and the injection plate 3, the negative electrode component 6 comprises a negative electrode base 601 and a negative electrode gland 604, the negative electrode base 601 and the negative electrode gland 604 are respectively and fixedly arranged at one side of the axial center of the upper end surfaces of the injection plate 3 and the cover plate 2, the negative electrode base 601 and the negative electrode gland 604 are mutually clamped and matched, the positive electrode component 7 comprises a positive electrode base 701 and a positive electrode gland 704, the positive electrode base 701 and the positive electrode gland 704 are respectively and fixedly arranged at the other side of the axial center of the upper end surfaces of the injection plate 3 and the cover plate 2, the positive base 701 and the positive gland 704 are mutually clamped and matched;

the outside four borders of electric core protection casing 4 all are provided with spout 401, and spout 401 indent in the surface of electric core protection casing 4, and the four borders of inner wall of shell main part 5 all are provided with slide rail 501, and slide rail 501 evaginates in the internal surface of shell main part 5, and electric core protection casing 4 cup joints with shell main part 5 activity mutually through spout 401 and the mutual joint of slide rail 501.

Wherein, explosion-proof valve 201 runs through apron 2 and extends to in the first through-hole 301, annotates liquid hole 202 and second through-hole 302 and is in same vertical position and the adaptation that corresponds each other, not only effectively prevents the inside large granule blasting of battery, has improved the security of lithium cell, and the electrolyte of still being convenient for add, the inside electrolyte leakage of lithium cell still effectively prevents simultaneously.

Wherein, 2 four corners of apron are provided with first counter sink 203, the four corners of board 3 of moulding plastics is provided with second counter sink 303, the top four corners of shell main part 5 is provided with screw hole 502, apron 2 runs through first counter sink 203 and second counter sink 303 from last to down in proper order through the fastening bolt 1 that is equipped with on it to threaded connection is in screw hole 502, fastening bolt 1 and screw hole 502 interference fit, not only improve equipment integral connection's fastening degree, still make the convenient directness of equipment fixing dismantlement.

Wherein, the periphery of 3 bottoms of injection molding board is provided with the upper groove edge of sealing washer 304, and the top of housing body 5 encircles all around and is equipped with the lower groove edge 503 of sealing washer, and the upper groove edge of sealing washer 304 and the lower groove edge 503 mutual adaptation of sealing washer not only make apron 2 and housing body 5 link up closely, improve the holistic gas tightness degree of equipment, effectively prevent that the inside electrolyte of lithium cell from leaking.

The cathode terminal 602 is arranged above the cathode base 601, the top center of the cathode terminal 602 is fixedly connected with the cathode metal contact plate 603, and the cathode terminal 602 penetrates through the cathode gland 604 and extends to the top end of the cover plate 2, so that the current stable operation of the lithium battery is maintained, the use and processing procedures are simple, and the use is effective and convenient.

Wherein, the top of anodal base 701 is provided with anodal utmost point post 702, and anodal metal contact 703 of the top center fixedly connected with of anodal utmost point post 702, anodal utmost point post 702 run through anodal gland 704 and extend to the top of apron 2 for the device current is stable, and processing is simple and convenient, convenient to use.

The utility model discloses a theory of operation is: when a user uses the lithium battery, the sliding groove 401 and the sliding rail 501 are mutually clamped and matched, so that the battery cell protective cover 4 can be conveniently sleeved and slid in the inner cavity of the shell main body 5, the lithium battery is effectively protected, and the lithium battery is convenient to process, take and replace; the lower groove edge 503 of the sealing ring is annularly arranged on the periphery of the top of the shell main body 5 and the upper groove edge 304 of the sealing ring is arranged at the bottom of the injection molding plate 3 to be matched with each other, so that the cover plate 2 and the shell main body 5 are tightly connected, the integral air tightness of the equipment is improved, the electrolyte inside the lithium battery is effectively prevented from leaking, meanwhile, the explosion-proof valve 201 is clamped into the first through hole 301, the large particles inside the battery are effectively prevented from exploding, and the safety of the lithium battery is improved; mould board 3 through spacing post 305 and apron 2 down the locating hole mutual block that the ring was equipped with all around of terminal surface, realize apron 2 and the installation of the realization integral type of the board 3 of moulding plastics, it is convenient not only to make the installation dismantle, still increase its fastness, fastening bolt 1 runs through first counter sink 203 on apron 2 and the second counter sink 303 on the board 3 of moulding plastics from last to down in proper order, and in threaded connection to the screw hole 502 on the shell main part 5, fastening bolt 1 and screw hole 502 interference fit simultaneously, the equipment is direct, it is convenient to dismantle.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a lithium cell apron convenient to dismantle and lithium cell thereof, includes apron (2), injection moulding board (3), electric core protection casing (4) and shell main part (5), its characterized in that: the cover plate (2) covers the top surface of the injection molding plate (3), the injection molding plate (3) is movably arranged above the shell main body (5), and the battery cell protective cover (4) is arranged in the inner cavity of the shell main body (5);

the anti-explosion valve (201) is fixed at the geometric center of the cover plate (2), a liquid injection hole (202) is formed in one side corner of the anti-explosion valve (201), a first through hole (301) is formed in the geometric center of the injection molding plate (3), a second through hole (302) is formed in one side corner of the first through hole (301), a limiting column (305) is arranged on the periphery of the upper end face of the injection molding plate (3), the injection molding plate (3) is clamped with positioning holes formed in the periphery of the lower end face of the cover plate (2) through the limiting column (305), a negative electrode component (6) and a positive electrode component (7) are symmetrically arranged on two sides of the axis position of the cover plate (2) and the injection molding plate (3) respectively, the negative electrode component (6) comprises a negative electrode base (601) and a negative electrode gland (604), the negative electrode base (601) and the negative electrode gland (604) are fixedly installed on one side of the axis position of the upper end faces of the injection molding plate (3) and the cover plate (2) respectively, the negative base (601) and the negative gland (604) are mutually clamped and matched, the positive assembly (7) comprises a positive base (701) and a positive gland (704), the positive base (701) and the positive gland (704) are respectively and fixedly installed on the other sides of the axle centers of the upper end surfaces of the injection molding plate (3) and the cover plate (2), and the positive base (701) and the positive gland (704) are mutually clamped and matched;

the outside four borders of electricity core protection casing (4) all are provided with spout (401), just spout (401) indent in the surface of electricity core protection casing (4), the inner wall four borders of shell main part (5) all are provided with slide rail (501), just slide rail (501) evaginate in the internal surface of shell main part (5), just electricity core protection casing (4) are passed through spout (401) with slide rail (501) mutual joint with shell main part (5) activity cup joints mutually.

2. The lithium battery cover plate convenient to disassemble and the lithium battery thereof as claimed in claim 1, wherein the explosion-proof valve (201) penetrates through the cover plate (2) and extends into the first through hole (301), and the liquid injection hole (202) and the second through hole (302) are in the same vertical position and are correspondingly matched with each other.

3. The lithium battery cover plate convenient to disassemble and the lithium battery thereof as claimed in claim 1, wherein four corners of the cover plate (2) are provided with first counter bores (203), four corners of the injection molding plate (3) are provided with second counter bores (303), four corners of the top of the shell main body (5) are provided with threaded holes (502), the cover plate (2) sequentially penetrates through the first counter bores (203) and the second counter bores (303) from top to bottom through fastening bolts (1) arranged on the cover plate, and is in threaded connection with the threaded holes (502).

4. The lithium battery cover plate convenient to disassemble and the lithium battery thereof as claimed in claim 1, wherein the injection molded plate (3) is provided with a sealing ring upper groove edge (304) at the periphery of the bottom, the housing main body (5) is provided with a sealing ring lower groove edge (503) at the periphery of the top, and the sealing ring upper groove edge (304) and the sealing ring lower groove edge (503) are mutually matched.

5. The lithium battery cover plate convenient to disassemble and the lithium battery thereof as claimed in claim 1, wherein a negative pole post (602) is disposed above the negative pole base (601), a negative metal contact piece (603) is fixedly connected to the top center of the negative pole post (602), and the negative pole post (602) penetrates through the negative pressure cover (604) and extends to the top end of the cover plate (2).

6. The lithium battery cover plate convenient to disassemble and the lithium battery thereof as claimed in claim 1, wherein a positive pole column (702) is arranged above the positive base (701), a positive metal contact piece (703) is fixedly connected to the top center of the positive pole column (702), and the positive pole column (702) penetrates through the positive gland (704) and extends to the top end of the cover plate (2).