阅读说明：本技术 一种新能源锂电池用盖板及其成型工艺 (Cover plate for new energy lithium battery and forming process of cover plate ) 是由 翁静芳 于 2021-08-06 设计创作，主要内容包括：本发明公开了一种新能源锂电池用盖板及其成型工艺,涉及成型工艺技术领域,具体为一种新能源锂电池用盖板,包括电池箱,所述电池箱的内腔中设置有隔热板,所述盖板上安装有盖板,所述盖板上表面的左侧设置有正电极柱,所述盖板上表面的右侧设置有负电极柱,所述正电极柱与负电极柱的外表面均安装有端子固定盖,所述端子固定盖的外表面开设有螺纹槽。该新能源锂电池用盖板及其成型工艺,通过将端子固定盖套接在正电极柱与负电极柱的外表面,当端子与正电极柱、负电极柱连接后,转动压合螺母,利用两个压合螺母对端子进行固定,能够大大的提高端子与正电极柱、负电极柱之间的稳定性。(The invention discloses a cover plate for a new energy lithium battery and a forming process of the cover plate, and relates to the technical field of forming processes, in particular to a cover plate for a new energy lithium battery. According to the cover plate for the new energy lithium battery and the forming process of the cover plate, the terminal fixing cover is sleeved on the outer surfaces of the positive electrode column and the negative electrode column, the press-fit nuts are rotated after the terminals are connected with the positive electrode column and the negative electrode column, the terminals are fixed by the two press-fit nuts, and the stability among the terminals, the positive electrode column and the negative electrode column can be greatly improved.)

1. The utility model provides a new forms of energy are apron for lithium cell, includes battery box (1), its characterized in that: be provided with heat insulating board (2) in the inner chamber of battery box (1), install apron (3) on apron (3), the left side of apron (3) upper surface is provided with positive electrode post (4), the right side of apron (3) upper surface is provided with negative electrode post (5), terminal fixed cover (6) are all installed with the surface of negative electrode post (5) to positive electrode post (4), the thread groove has been seted up to the surface of terminal fixed cover (6), the equal threaded connection in both sides has pressfitting nut (7) about the thread groove that terminal fixed cover (6) surface was seted up, install insulating rubber gasket (8) in the inner chamber of pressfitting nut (7), the top fixedly connected with carrier bar (9) of apron (3) inner chamber.

2. The cover plate for the new energy lithium battery as claimed in claim 1, wherein: the top fixedly connected with stopper (10) of carrier bar (9), the diameter of stopper (10) is greater than carrier bar (9), the spacing spring of top fixedly connected with (11) of apron (3) inner chamber, carrier bar (9) are in the inner chamber of spacing spring (11), driving piece (12) have been cup jointed in the downside activity of carrier bar (9) surface, the bottom fixedly connected with loading board (13) of driving piece (12), unsteady gas shutoff stopper (14) are installed to the bottom of loading board (13).

3. The cover plate for the new energy lithium battery as claimed in claim 2, wherein: the equal fixedly connected with actuating lever (15) in both ends about unsteady stifled gas plug (14) upper surface, the other end fixedly connected with gas pocket sliding plug (16) of actuating lever (15), fixedly connected with sliding block (17) on gas pocket sliding plug (16), liquid pipe (18) are annotated in the surface activity cup joint of sliding block (17), it has closing cap (19) to articulate through the hinge on liquid pipe (18) to annotate.

4. The cover plate for the new energy lithium battery as claimed in claim 3, wherein: the shape of sliding block (17) is T shape lug, annotate and offer the T nature spout with sliding block (17) looks adaptation on liquid pipe (18), sliding block (17) fixed connection is in the downside of gas pocket sliding plug (16).

5. The cover plate for the new energy lithium battery as claimed in claim 3, wherein: annotate and seted up two upper and lower exhaust holes on liquid pipe (18), install first air duct (20) in the downside exhaust hole of seting up on liquid pipe (18), annotate and install gasbag (22) in the upside exhaust hole of seting up on liquid pipe (18).

6. The cover plate for the new energy lithium battery as claimed in claim 5, wherein: the outer surface activity of first air duct (20), second air duct (21) the other end has cup jointed gasbag (22), baroceptor (24) are installed to the upside of gasbag (22), air relief cock (23) are installed to the downside of gasbag (22).

7. The cover plate for the new energy lithium battery as claimed in claim 6, wherein: adopt threaded connection between gassing stopper (23) and battery box (1), gasbag (22), gassing stopper (23), baroceptor (24) all run through the surface of battery box (1) and install on the surface of battery box (1).

8. The forming process of the cover plate for the new energy lithium battery as claimed in any one of claims 1 to 7, comprising the steps of forming a mold cavity matched with the cover plate (3) on the mold cavity table (25), a fixed frame (26) is fixedly arranged on the die cavity table (25), an air cylinder (27) is arranged on the fixed frame (26), a forming die (28) is arranged on an output shaft of the air cylinder (27), when the process molding is carried out, the material is required to be placed on a cavity table (25), then an output shaft of the air cylinder can be moved downwards by starting the air cylinder (27) to drive a molding die (28) to move downwards, so as to die-cast the material placed on the die cavity table (25) and to shape the cover plate (3), then, the parts on the cover plate (3) are installed, and finally, the cover plate (3) is installed on the battery box (1).

Technical Field

The invention relates to the technical field of forming processes, in particular to a cover plate for a new energy lithium battery and a forming process thereof.

Background

"lithium batteries" are a type of batteries using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a negative electrode material, and can be generally classified into two types: lithium metal battery and lithium ion battery, ordinary lithium cell utmost point post generally adopts welded fastening among the prior art, and fixed stability is poor, and has following problem after the lithium cell assembly usually: when the internal air pressure of the battery is higher than a certain value, although the exhaust sheet can be jacked upwards through the air pressure, the gas is discharged outwards through the exhaust port to reduce the internal air pressure of the battery, the exhaust sheet is movably arranged in the liquid injection guide sleeve, so that the tightness between the exhaust sheet and the liquid injection guide sleeve is poor; the air exhaust port is used for exhausting air pressure in the battery, when the air pressure in the battery is low, the air exhaust port is only shielded by the air exhaust sheet, dust can easily enter the battery due to poor connection sealing performance of the air exhaust sheet and the liquid injection guide sleeve, and in the connection of the lithium battery, the terminals are connected with the positive and negative poles, so that the terminals and the positive and negative poles can be loosened after long-time use to influence the lithium battery to be subjected to palace.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a cover plate for a new energy lithium battery and a forming process thereof, and solves the problems in the background art.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an apron for new forms of energy lithium cell, includes the battery box, be provided with the heat insulating board in the inner chamber of battery box, install the apron on the apron, the left side of apron upper surface is provided with positive electrode post, the right side of apron upper surface is provided with negative electrode post, the fixed lid of terminal is all installed with the surface of negative electrode post to positive electrode post, the thread groove has been seted up to the surface of the fixed lid of terminal, the equal threaded connection in both sides has the pressfitting nut about the thread groove that the fixed lid surface of terminal was seted up, install the insulating rubber gasket in the inner chamber of pressfitting nut, the top fixedly connected with carrier bar of apron inner chamber.

Optionally, the top fixedly connected with stopper of carrier bar, the diameter of stopper is greater than the carrier bar, the top fixedly connected with spacing spring of apron inner chamber, the carrier bar is in the inner chamber of spacing spring, the driving piece has been cup jointed in the downside activity of carrier bar surface, the bottom fixedly connected with carrier bar of driving piece, the bottom of carrier bar is installed and is floated the gas shutoff stopper.

Optionally, the equal fixedly connected with actuating lever in both ends about the stifled gas plug upper surface floats, the other end fixedly connected with gas pocket sliding plug of actuating lever, fixedly connected with sliding block on the gas pocket sliding plug, the surface activity of sliding block has cup jointed annotated the liquid pipe, it has the closing cap through hinge joint on the liquid pipe to annotate.

Optionally, the shape of sliding block is T shape lug, annotate and set up the T nature spout with sliding block looks adaptation on the liquid pipe, sliding block fixed connection is in the downside of gas pocket sliding plug.

Optionally, two upper and lower exhaust holes are formed in the liquid injection guide pipe, a first air guide pipe is installed in the lower exhaust hole formed in the liquid injection guide pipe, and an air bag is installed in the upper exhaust hole formed in the liquid injection guide pipe.

Optionally, the outer surfaces of the other ends of the first air duct and the second air duct are movably sleeved with air bags, an air pressure sensor is installed on the upper side of each air bag, and an air release plug is installed on the lower side of each air bag.

Optionally, a threaded connection mode is adopted between the air release plug and the battery box and between the air bag and the air bag, and the air release plug and the air pressure sensor both penetrate through the surface of the battery box and are installed on the surface of the battery box.

The utility model provides a forming technology of new forms of energy lithium cell is with apron, includes following step, the die cavity bench set up with apron looks adaptation's die cavity, die cavity bench fixed mounting has the mount, install the cylinder on the mount, install forming die on the output shaft of cylinder, when carrying out technology shaping, it is bench to need to place the material at the die cavity, then through starting the cylinder, can make the output shaft of cylinder move down, drive forming die moves down to die-casting the material that die cavity bench was placed, make the apron shaping, install the part on the apron after that, at last with the apron install on the battery box can.

The invention provides a cover plate for a new energy lithium battery and a forming process thereof, and the cover plate has the following beneficial effects:

1. this new forms of energy is apron for lithium cell and forming process thereof, through the atmospheric pressure grow in the battery box, when reaching the predetermined value, can be with unsteady stifled gas stopper jack-up for the driving piece moves up, drives the actuating lever rebound, and then makes gas pocket sliding plug rebound, will annotate two exhaust holes on the liquid pipe and expose, can increase the displacement, and utilize two to annotate the liquid pipe, can increase and annotate the liquid volume, improve and annotate liquid efficiency and exhaust efficiency.

2. This new forms of energy is apron for lithium cell and forming process thereof, elasticity through spacing spring provides can be spacing to unsteady stifled gas stopper, when atmospheric pressure in the battery box is less than the predetermined value, can make unsteady stifled gas stopper stop up the venthole, carries the device's leakproofness to the effectual impurity of avoiding gets into the battery box in.

3. According to the cover plate for the new energy lithium battery and the forming process of the cover plate, the terminal fixing cover is sleeved on the outer surfaces of the positive electrode column and the negative electrode column, the press-fit nuts are rotated after the terminals are connected with the positive electrode column and the negative electrode column, the terminals are fixed by the two press-fit nuts, and the stability among the terminals, the positive electrode column and the negative electrode column can be greatly improved.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a schematic structural view of a battery case according to the present invention in a three-dimensional explosion;

FIG. 3 is a schematic cross-sectional view of the heat shield of the present invention;

FIG. 4 is a schematic three-dimensional structure of the negative electrode column of the present invention;

FIG. 5 is a schematic structural view of a three-dimensional explosion at the terminal fixing cover according to the present invention;

FIG. 6 is a schematic diagram of the internal structure of the cover plate according to the present invention;

FIG. 7 is a schematic cross-sectional view of a fluid injection catheter of the present invention;

FIG. 8 is a schematic perspective view of a first airway tube according to the present invention;

fig. 9 is a schematic structural view of a three-dimensional explosion at a carrier bar according to the present invention.

In the figure: 1. a battery box; 2. a heat insulation plate; 3. a cover plate; 4. a positive electrode column; 5. a negative electrode column; 6. a terminal fixing cover; 7. pressing the nut; 8. an insulating rubber gasket; 9. a carrier bar; 10. a limiting block; 11. A limiting spring; 12. a drive member; 13. a carrier plate; 14. floating air blocking plugs; 15. a drive rod; 16. A vent wiper plug; 17. a slider; 18. an infusion catheter; 19. sealing the cover; 20. a first air duct; 21. A second air duct; 22. an air bag; 23. a gas release plug; 24. an air pressure sensor; 25. a mold cavity table; 26. A fixed mount; 27. a cylinder; 28. and (5) forming a die.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 4 and 5, the present invention provides a technical solution: a new energy lithium battery cover plate comprises a battery box 1, a heat insulation plate 2 is arranged in an inner cavity of the battery box 1, a cover plate 3 is installed on the cover plate 3, a positive electrode column 4 is arranged on the left side of the upper surface of the cover plate 3, a negative electrode column 5 is arranged on the right side of the upper surface of the cover plate 3, terminal fixing covers 6 are installed on the outer surfaces of the positive electrode column 4 and the negative electrode column 5 respectively, the positive electrode column 4 and the negative electrode column 5 can be more conveniently connected with terminals by arranging connecting grooves on the terminal fixing covers 6, meanwhile, the positive electrode column 4 and the negative electrode column 5 can be protected by the terminal fixing covers 6, the positive electrode column 4 and the negative electrode column 5 are prevented from being damaged, the service lives of the positive electrode column 4 and the negative electrode column 5 are prolonged, a thread groove is formed on the outer surface of the terminal fixing cover 6, and pressing nuts 7 are in threaded connection with the upper side and the lower side of the thread groove formed on the outer surface of the terminal fixing cover 6, after connecting the terminal on positive electrode post 4, negative electrode post 5, through twisting the pressfitting nut 7 of moving for two pressfitting nuts 7 are fixed the terminal, can increase positive electrode post 4, the steadiness between negative electrode post 5 and the terminal, can effectually avoid the terminal to connect for a long time and take place not hard up problem appearance on positive electrode post 4, the negative electrode post 5, install insulating rubber gasket 8 in the inner chamber of pressfitting nut 7, the top fixedly connected with carrier bar 9 of 3 inner chambers of apron.

Referring to fig. 6, 7 and 9, the top of the bearing rod 9 is fixedly connected with a limiting block 10, the diameter of the limiting block 10 is larger than that of the bearing rod 9, the limiting block 10 can be used for limiting the driving part 12, so that the driving part 12 is used on the bearing rod 9, the driving part 12 is prevented from being separated from the bearing rod 9, the integrity of the device is improved, the top of the inner cavity of the cover plate 3 is fixedly connected with a limiting spring 11, the bearing rod 9 is arranged in the inner cavity of the limiting spring 11, the floating air-blocking plug 14 can be limited by the limiting spring 11, so that the floating air-blocking plug 14 blocks an air outlet hole, dust is prevented from entering the battery box 1, the sealing performance of the floating air-blocking plug 14 is greatly enhanced, the driving part 12 is movably sleeved on the lower side of the outer surface of the bearing rod 9, the bottom of the driving part 12 is fixedly connected with a bearing plate 13, and the bottom of the bearing plate 13 is provided with the floating air-blocking plug 14, the air pressure in the battery box 1 can be controlled by utilizing the floating air blocking plug 14, so that the air pressure in the battery box 1 is always kept balanced, the left end and the right end of the upper surface of the floating air blocking plug 14 are fixedly connected with the driving rods 15, the other end of the driving rod 15 is fixedly connected with the air hole sliding plug 16, the sliding block 17 is fixedly connected on the air hole sliding plug 16, the outer surface of the sliding block 17 is movably sleeved with the liquid injection guide pipe 18, the liquid injection guide pipe 18 is hinged with a sealing cover 19 through a hinge, two air exhaust holes are formed in the liquid injection guide pipe 18, the air hole sliding plug 16 is utilized to block the two air exhaust holes, when the air hole sliding plug 16 is driven by the air pressure to ascend, the air exhaust holes in the liquid injection guide pipe 18 can be exposed, so that the air is exhausted, when the air pressure in the battery box 1 is too high, and the air is too much, the air hole sliding plug 16 can continue to ascend, so that the second air exhaust hole in the liquid injection guide pipe 18 is exposed, can make first air duct 20, second air duct 21 carry out the exhaust simultaneously, can great improvement the device's exhaust efficiency.

Referring to fig. 8, the sliding block 17 is a T-shaped convex block, the liquid injection conduit 18 is provided with a T-shaped sliding slot adapted to the sliding block 17, the sliding block 17 is fixedly connected to the lower side of the air hole sliding plug 16, and can limit the air hole sliding plug 16, so that the air hole sliding plug 16 is driven more stably, the T-shaped structure can increase the contact area between the sliding block 17 and the liquid injection conduit 18, so that the sliding block 17 and the liquid injection conduit 18 are connected more tightly, the tightness between the air hole sliding plug 16 and the liquid injection conduit 18 is indirectly increased, and meanwhile, the problem that the sliding slot inner diameter on the liquid injection conduit 18 is increased due to frequent friction between the sliding block 17 and the liquid injection conduit 18, the sliding block 17 shakes, and the air hole sliding plug 16 is unstable is caused can be avoided, the liquid injection conduit 18 is provided with upper and lower exhaust holes, and the lower exhaust hole on the liquid injection conduit 18 is provided with a first air duct 20, the air bag 22 is installed in the upper side exhaust hole formed in the liquid injection conduit 18, and the device is provided with four paths through the two exhaust paths of the second air duct 21 and the air bag 22, so that the exhaust efficiency of the device can be improved.

Referring to fig. 2 and 3, the outer surfaces of the other ends of the first air duct 20 and the second air duct 21 are movably sleeved with an air bag 22, an air pressure sensor 24 is installed on the upper side of the air bag 22, an air release plug 23 is installed on the lower side of the air bag 22, the amount of air in the air bag 22 can be known through the air pressure sensor 24, so that a worker can timely release air in the air bag 22, the air bag 22 is prevented from being excessively expanded, the air bag 22 is prevented from being torn, the service life of the air bag 22 is shortened, the air release plug 23, the battery box 1 and the air bag 22 are in threaded connection, the air release plug 23 and the air pressure sensor 24 penetrate through the surface of the battery box 1 and are installed on the surface of the battery box 1, the air in the air bag 22 can be more conveniently released through the threaded connection, the worker can more conveniently operate, by placing the air bag 22 on the other side of the thermal insulation board 2, the problem that the battery in the battery case 1 generates heat and the gas in the airbag 22 expands can be avoided.

A forming process of a cover plate for a new energy lithium battery comprises the following steps: the die cavity table 25 is provided with a die cavity matched with the cover plate 3, the die cavity table 25 is fixedly provided with a fixing frame 26, the fixing frame 26 is provided with a cylinder 27, an output shaft of the cylinder 27 is provided with a forming die 28, when the process forming is carried out, materials are required to be placed on the die cavity table 25, then the cylinder 27 is started, the output shaft of the cylinder can move downwards, the forming die 28 is driven to move downwards, the materials placed on the die cavity table 25 are subjected to die casting, the cover plate 3 is formed, then parts on the cover plate 3 are installed, and finally the cover plate 3 is installed on the battery box 1.

To sum up, when the cover plate for the new energy lithium battery and the forming process thereof are used, when the air pressure in the lithium battery is increased and reaches a preset value, the floating air blocking plug 14 is jacked up, the driving part 12 upwards extrudes the limiting spring 11, the driving part 12 upwards moves, the driving rod 15 upwards moves along with the driving rod to drive the air hole sliding plug 16 to upwards move, the exhaust hole formed in the liquid injection guide pipe 18 is exposed, the gas enters the air bag 22 from the first air guide pipe 20 and the second air guide pipe 21, the air pressure in the air bag 22 can be known through the air pressure scale value on the air pressure sensor 24, when the air pressure in the air bag 22 reaches the preset value, the air in the air bag 22 can be released by screwing the air release plug 23, when liquid injection is needed, liquid injection can be performed only by opening the seal cover 19, when a connecting terminal is connected to the positive electrode column 4 and the negative electrode column 5 through the terminal fixing cover 6, and then screwing the pressing nut 7, so that the pressing nut 7 can fix the terminal.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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