KR102341619B1 - Battery cocer and automatic device for sorting defective of batttery cover - Google Patents

Abstract

The present invention relates to a battery cover and an automated device for selecting manufacturing defects thereof, and more particularly, to a battery cover in which deformation due to heat conduction is considered and a battery cover capable of automatically selecting a defective battery cover. It's about automation.
The battery cover of the present invention is formed in a single structure, so it is easy to manufacture, and while the gas generated therein can be easily discharged, the leakage of the electrolyte can be prevented through the labyrinth forming part. In addition, the battery cover of the present invention has an advantage that both sides adjacent to the negative electrode bushing and the positive electrode bushing are convex, so that both sides can secure straightness after shape deformation due to heat shrinkage generated during manufacturing.

Description

A battery cover and an automatic device for sorting defective manufacturing thereof

The present invention relates to a battery cover and an automated device for selecting manufacturing defects thereof, and more particularly, to a battery cover in which deformation due to heat conduction is considered and a battery cover capable of automatically selecting a defective battery cover. It's about automation.

A general battery is divided into a primary battery and a secondary battery that can be charged and discharged. Among them, a large-capacity battery has a structure using an electrolyte. This electrolyte is a liquid and a separate security device must be provided. First, the electrolyte must not leak to the outside, and the gas generated by the chemical reaction must be discharged to the outside to prevent explosion.

A conventional battery is largely composed of a battery charged with an electrolyte (hereinafter, a case) and a cover covering the case. The cover has a dual structure of a lower cover having terminals and a handle receiving portion formed thereon, and an upper cover. In the lower cover, in addition to the terminal and handle receiving part, a partition wall is provided in the portion covered by the upper cover in accordance with the cell formed in the case and the exchange port, and the bottom surface of the upper cover has a partition wall corresponding to the partition wall and exhaust gas flowing in through the water exchange port. An explosion-proof filter that discharges gas and blocks the electrolyte from passing through is provided. The explosion-proof filter also serves to prevent the reaction of the exhaust gas and the electrolyte inside the case to external ignition, thereby preventing the risk of explosion of the battery. In this conventional cover structure, the upper cover covers the periphery of the water return port to form a labyrinth structure, which prevents the electrolyte from flowing into the water return unit, which is a certain space formed by fastening the upper and lower covers, to the electrolyte flowing through the water return port. is to prevent In addition, the water-return port located at the bottom is arranged to return the electrolyte introduced into the water-return unit to the case.

As described above, the conventional cover is manufactured in an upper and lower two-layer structure for the reason that the inside of the cover must be constructed in consideration of prevention of inflow of electrolyte, discharge of exhaust gas, prevention of explosion, reduction of electrolyte introduced into the water exchange unit, and the like.

However, the two-layered cover has a problem in that productivity is reduced because processes corresponding to the upper and lower parts, respectively, and a process for fastening the upper cover and the lower cover are required.

In order to solve this problem, the present applicant has a battery cover (Korean Patent Publication No. 10-1564439) that is formed in a single-layer structure, so it is easy to produce, and can easily discharge the gas generated inside and block the leakage of the electrolyte. ) has been developed.

However, such an integrated battery cover has a problem in that the body portion adjacent to the electrode bushing is concavely contracted during production according to the thermal conductivity of the electrode bushing portion and the body portion formed of different materials, so a method to improve this is required. .

On the other hand, in general, the size of the electrode bushing connected to the positive electrode is larger than the size of the electrode bushing connected to the negative electrode of the battery, and the lower portion of each electrode bushing is generally inserted-molded and fixed to the main body.

When manufacturing the battery cover, the mounting positions of electrode bushings having different diameters on the main body of the battery cover may be changed, or defective products in which electrode bushings of the same diameter are mounted may occur. In addition, defective products may occur during the insert molding process of inserting the electrode bushing into the battery cover body.

However, in order to select defective products, it takes a lot of time as the operator directly judges all inspections to determine whether the electrode bushing is suitable for installation and whether the battery cover is suitable for fixing the body part, which takes a lot of time and is determined according to the ability of the operator. There is a problem in that the inspection rate is not uniform due to the difference in the reliability of the test.

Republic of Korea Patent Publication No. 10-1564439 : Battery cover

In order to solve the above problems, the present invention is to provide a battery cover that is convexly molded in a portion where shrinkage is expected in consideration of shrinkage deformation due to a difference in thermal conductivity.

In addition, the present invention is to provide an automated device for manufacturing defect selection of a battery cover that can determine defects through an image or image of the manufactured bakery cover, and automatically separate the determined defective product from the good product and discharge and transport it. do.

The battery cover for achieving the above object includes a cover body formed to open and close the upper part of the case in which the electrolyte is charged; a gas discharge unit disposed at a lower portion of the cover body for discharging gas generated inside the case to the outside of the case; and a gas inlet formed to surround the communication hole of the gas outlet so that the gas inserted from the inside of the case can be introduced into the gas outlet at a specified position; and the anode electrode bushing are respectively coupled, and both sides adjacent to the cathode electrode bushing and the anode electrode bushing are convex to compensate for concave deformation due to heat shrinkage during manufacture, and the gas inlet portion is the gas outlet portion A gas inlet body extending from the periphery of the communication hole in the direction of the case to which it is coupled and having a space communicating with the communication hole, and a gas inlet formed inside the space to guide the gas flowing into the space to the gas outlet. A labyrinth forming part for expanding the movement path and preventing the electrolyte introduced into the space from moving to the communication hole, and rotatably coupled to the upper part of the gas inlet body to open and close the lower part of the gas inlet body, the It characterized in that it is provided with a cover in which the opening is formed so that the gas can pass from the inside of the case to the space.

The gas inlet body is formed in the shape of a square column with an open lower end, and one of the side walls orthogonal to the longitudinal direction of the gas outlet extends downwardly longer than the other side wall, and the gas outlet extends in the longitudinal direction. The lower ends of both side walls located in the parallel direction are inclinedly formed, and the labyrinth forming part protrudes in parallel from the short side wall to the long side wall among the opposite side walls of the gas inlet body. The first and second labyrinth forming bulkheads extended to be spaced apart from each other at the same distance from the long sidewalls among the opposite sidewalls, and the first and second adjacent to the long sidewalls from the opposite sidewalls of the gas inlet body a third labyrinth forming bulkhead connecting each end of the labyrinth forming bulkhead, the third labyrinth forming bulkhead having a first gas inlet groove which is drawn in upward from the center of the lower end and opened at both sides in the extending direction of the first and second labyrinth forming barrier walls; The first maze forming barrier rib and the second maze forming barrier rib are connected at positions spaced apart from each other in the direction of the shorter sidewall among the opposite side walls of the gas inlet body facing each other with respect to the maze forming barrier rib, and adjacent to the first maze forming barrier rib a fourth labyrinth forming bulkhead having a second gas inlet groove that is drawn upward from the lower end of the position and both open in the extending direction of the first and second labyrinth forming bulkheads; and the gas inlet body with respect to the fourth labyrinth forming bulkhead The first and second labyrinth forming bulkheads are connected at a position spaced apart from each other in the direction of the short side wall among the opposite side walls of the Between the first and second labyrinth forming barrier ribs, the fifth maze forming barrier rib having third gas inlet grooves, both sides of which are open in the extending direction, and the first and second maze forming barrier ribs, on the side wall of the short length of the gas inlet body 6th and 7th labyrinth forming bulkheads protruding in parallel in the direction of the long side wall of the gas inlet body, located on the left and right sides of the communication hole, and extending at equal intervals to the fifth labyrinth forming bulkhead, and the fifth maze Each end of the sixth and seventh labyrinth forming barrier walls adjacent to the forming barrier wall It is preferable to include an eighth labyrinth forming bulkhead having a fourth gas inlet groove that is connected to the lower end and is drawn in upward from the center side and is opened at both sides in the extending direction of the first and second labyrinth forming bulkheads.

The labyrinth forming part protrudes from the third labyrinth forming bulkhead between the first gas inlet groove and the second gas inlet groove in the direction of the fourth labyrinth forming bulkhead, extends in the vertical direction, and is spaced apart from the fourth labyrinth forming bulkhead. a first passage extension rib which becomes a rib, and the fourth labyrinth forming bulkhead between the second gas inlet groove and the third gas inlet groove protruding in the direction of the fifth labyrinth forming barrier wall and extending in the vertical direction to form the fifth labyrinth a second flow passage extension rib spaced apart from the partition wall, and the fifth labyrinth forming partition wall between the third gas inlet groove and the fourth gas inlet groove extending in the direction of the eighth labyrinth forming partition wall and extending in the vertical direction; It is preferable to further include a third passage extension rib spaced apart from the eighth labyrinth forming barrier rib.

The first and second maze forming barrier ribs each have auxiliary member mounting grooves formed between the third maze forming barrier rib and the fourth maze forming barrier rib so that the thickness of the lower part is thinner than the upper part, and the maze forming part is provided with the second maze forming part. Plate-shaped first and second coupling bars extending vertically in parallel to each other to be mounted in the auxiliary member mounting grooves of the first and second labyrinth forming bulkheads and having a constant width in a direction orthogonal to the longitudinal direction of the gas outlet; A plurality of electrolyte blocking bars extending in the longitudinal direction of the gas discharge unit to connect the first and second coupling bars, one side adjacent to the gas discharge unit is inclined to be positioned lower than the other side, and spaced apart from each other at regular intervals up and down It is preferable to further include an electrolyte blocking auxiliary member.

On the other hand, the automated device for manufacturing defect selection of the battery cover for achieving another object as described above includes a conveyor support frame adjustable in length up and down, and is mounted on the conveyor support frame and inspects the manufacturing state of the manufactured battery cover. An inspection conveyor on which a camera is mounted, a carry-in conveyor mounted rotatably up and down on one side in the longitudinal direction of the inspection conveyor, and a take-out conveyor mounted rotatably up and down on the other side in the longitudinal direction of the inspection conveyor, and the camera A display unit for displaying an image or image taken in the camera, and a control unit for determining whether the mounting state and mounting position of the positive electrode bushing and the negative electrode bushing of the battery cover are suitable through the image or image photographed by the camera, The control unit controls the length of the conveyor belt of the inspection conveyor to expand and contract so that the battery cover, which is judged to be defective, is discharged downward between the inspection conveyor and the take-out conveyor when the battery cover manufacturing is unsuitable.

The inspection conveyor is respectively supported by the conveyor support frame and is spaced apart from each other at regular intervals and extends in parallel in the horizontal direction with first and second fixed frames, and both sides are rotatably mounted on one side of the first and second fixed frames. and a first driving roller connected to the first driving motor at one end, and positioned between the first and second fixed frames to be adjacent to the first driving roller with respect to the first and second fixed frames or First and second moving frames mounted movably away from each other, a connecting bar connecting the first and second moving frames, a cylinder mounted on one side of the first and second fixed frames, and accommodated in the cylinder an actuator having a rod that pulls or pushes the connecting bar so that one end is connected to the connecting bar so that the length protruding with respect to the cylinder is extended or reduced so that the first and second moving frames are moved; and the first and a first driven roller rotatably mounted on both sides on the other side of the second moving frame, and an inspection conveyor belt supported by the first driving roller and the first driven roller and rotatable in an endless track when the first driving roller rotates and, when the first and second moving frames move adjacent to the first driving roller, they move away from each other, and when the first and second moving frames move away from the first driving roller, the first and second moving frames are adjacent to each other. A first tension maintaining roller rotatably mounted on one side of the first and second moving frames so that the tension of the inspection conveyor belt can be maintained when moving the moving frame, and the other side of the first and second fixed frames are rotated It is preferable to include a second tension maintaining roller that is possibly mounted.

The battery cover of the present invention is formed in a single structure, so it is easy to manufacture, and while the gas generated therein can be easily discharged, the leakage of the electrolyte can be prevented through the labyrinth forming part. In addition, the battery cover of the present invention has an advantage that both sides adjacent to the negative electrode bushing and the positive electrode bushing are convex, so that both sides can secure straightness after shape deformation due to heat shrinkage generated during manufacturing.

In addition, the automated device for manufacturing defect selection of the battery cover of the present invention reads whether the battery cover is defective with a camera, and can automatically discharge the defective battery cover to the lower side of the inspection conveyor through the inspection conveyor belt extending and contracting in length. And by shortening the sorting time, there is an advantage that production efficiency can be improved.

1 is a perspective view of a battery equipped with a battery cover according to a first embodiment of the present invention;
Figure 2 is a perspective view of a state in which the battery cover of Figure 1 is inverted,
Figure 3 is a bottom view of the gas inlet of the battery cover of Figure 1,
Figure 4 is a side cross-sectional view of the gas inlet of the battery cover of Figure 1,
5 is a bottom view of the gas inlet of the battery cover according to the second embodiment of the present invention;
6 is a side cross-sectional view of a gas inlet of a battery cover according to a third embodiment of the present invention;
7 is a side cross-sectional view of the gas inlet of the battery cover of FIG. 6;
8 is a perspective view of an automated device for manufacturing defect selection of a battery cover according to an embodiment of the present invention;
9 is a side cross-sectional view of the automated manufacturing defect selection device of FIG. 8;
10 is a partial side cross-sectional view illustrating a state in which the inspection conveyor of the automated manufacturing defect sorting apparatus of FIG. 8 is stretched.

Hereinafter, with reference to the accompanying drawings, the battery cover according to the present invention and the manufacturing defect selection automatic device will be described in more detail.

1 and 4 show a battery cover according to a first embodiment of the present invention.

The battery cover 1 according to the first embodiment of the present invention includes a cover body 10 formed so as to be able to open and close an upper portion of a case in which an electrolyte is charged, and a lower side of the main body, provided in the case 2 . A gas discharge unit 20 for discharging the generated gas to the outside of the case 2, and a gas discharge unit ( 20) provided with a plurality of gas inlet portions 30 formed to protrude in the direction of the case (2).

The cover body portion 10 is formed in a rectangular shape having an inner space open in the direction of the case to be coupled, and the cathode electrode bushing 17 and the anode electrode bushing 19 protruding from the upper surface are mounted therein.

The cover body part 10 is an injection mold, so that each lower part of the cathode electrode bushing 17 and the anode electrode bushing 19 is insert-molded. It is molded in a state accommodated in (not shown).

The cathode electrode bushing 17 and the anode electrode bushing 19 are not shown, but the anode socket and the cathode socket are respectively mounted on the upper part, and the inner side of the case is such that a bushing stand (not shown) extending upward from the case side is accommodated inside. It is formed through the bonding direction, and is formed of a metal material for electrical conduction.

The cover body portion 10 is formed so that both sides adjacent to the mounted negative electrode bushing 17 and the positive electrode bushing 19 are convex. This can compensate for the concave deformation of the both sides adjacent to the negative electrode bushing and the both electrode bushings due to heat shrinkage because the cover body 10, the negative electrode bushing 17, and the positive electrode bushing 19 are formed of different materials. to be there

In addition, in the cover body part 10 , partition walls 13 are formed at positions corresponding to the cell partition walls (not shown) formed inside the case 2 , respectively, and the inner space 11 is partitioned.

A plurality of partition walls 13 are respectively extended in the width direction of the cover body portion 10 and are spaced apart from each other in the length direction of the body portion 10, which is a portion where the fastening is made corresponding to the cell separation wall.

The battery cover 1 protrudes into the case 2 coupled to the partition wall 13 with the partition wall 13 interposed therebetween in order to facilitate the fastening of the cell separation wall and the partition wall 13 of the case 2 . A pair of guide protrusions 15 are formed at positions spaced apart from each other in the width direction of the cover body 10 .

The gas discharge unit 20 is for discharging the gas generated in the chemical reaction of the electrolyte charged inside the case 2 to the outside of the case 2, and is integrally formed with the cover body 10 and the cover body ( 10) is formed in the form of a pipe having a passage 21 therein extending in a direction penetrating the partition wall 13 along the longitudinal direction.

In addition, the gas outlet 20 has communication holes 22 that are formed to communicate through the passage formed therein from the outer circumferential surface, and the communication holes 22 are covered by a gas inlet 30 to be described later.

The gas inlet 30 extends in the direction of the case 2 coupled around the communication hole 22 of the gas outlet and has a space portion 32 communicating with the communication hole 22. A gas inlet body 31 and , formed inside the space 32 to guide the gas flowing into the space 32 to the gas outlet, expand the movement path of the gas, and prevent the electrolyte introduced into the space from moving to the communication hole 22 It is rotatably coupled to the maze forming part 34 for A lid (55) having an opening (56) is provided.

The gas inlet body 31 is formed in a square column shape with an open lower end, and one of the side walls orthogonal to the longitudinal direction of the gas outlet 20 extends downwardly longer than the other side wall, and the gas The lower ends of the sidewalls 31c and 31d positioned in parallel with the longitudinal direction of the discharge unit 20 are formed to be inclined.

In addition, the gas inlet body 31 has mutually facing surfaces of both side walls orthogonal to the longitudinal direction of the gas discharging unit 20, and both side walls 31c located in a direction parallel to the longitudinal direction of the gas discharging unit 20, Supporting projections 31e for supporting the cover 55 and preventing the electrolyte from flowing into the space are formed on the opposite surfaces of 31d), respectively.

And, the gas inlet body 31, as shown in FIG. 4, when the opening 46 of the cover 45 is closed by the electrolyte filled in the case 2, the gas inside the case 2 A bypass hole 33 formed through the space 32 at the center side of the side wall 31b extending longer among the side walls 31a and 31b orthogonal to the longitudinal direction of the gas discharge unit 20 so as to be introduced into the space. ) is formed.

One side of the cover 55 is rotatably connected to the upper end of the short side wall 31a among the side walls 31a and 31b facing each other of the gas inlet body 31, and the other side edge portion has both sides facing each other. Among the walls, a plurality of coupling protrusions 57 respectively inserted into a plurality of coupling grooves 34 that are drawn upwardly are formed at the lower end of the long side wall 31b, and an opening is located between the plurality of coupling protrusions 57 . (56) is formed.

The labyrinth forming part 35 includes first to eighth labyrinth forming partition walls 37, 38, 39, 41, 43, 45, 46 and 47.

The first and second labyrinth forming partition walls 37 and 38 are opposite side walls 31a and 31b of the gas inlet body 31 facing each other in the short side wall 31a among the opposite side walls 31a and 31b. Among them, the long sidewalls 31b protrude in parallel and extend at equal intervals from the long sidewalls 31b of the opposite sidewalls 31a and 31b of the gas inlet body 31 . The first and second labyrinth forming partition walls 37 and 38 are opposite side walls 31a and 31b of the gas inlet body 31 facing each other in the short side wall 31a among the opposite side walls 31a and 31b. Among them, the length is longer toward the side wall 31b and the lower end is inclined.

The third labyrinth forming barrier rib 39 connects the ends of the first and second labyrinth forming barrier ribs 37 and 38 adjacent to the long sidewalls 31b among the opposite side walls 31a and 31b facing each other and connects the lower center A first gas inlet groove 40 is formed, which is introduced upward from the side and opened at both sides in the extending direction of the first and second labyrinth forming bulkheads 37 and 38 .

The fourth labyrinth forming bulkhead 41 is spaced apart from the third labyrinth forming barrier wall 39 in the direction of the short side wall 31a among the opposite side walls 31a and 31b of the gas inlet body 31 . The first and second labyrinth partition walls 37 and 38 connect the first and second labyrinth partition walls 37 and enter upward from the lower end of the position adjacent to the first labyrinth partition wall 37, and the first and second labyrinth partition walls 37 and 38 ) A second gas inlet groove 42 which is opened on both sides in the extending direction is formed.

The fifth labyrinth forming bulkhead 43 is spaced apart from the fourth labyrinth forming bulkhead 39 in the direction of the short side wall 31a among the opposite side walls 31a and 31b of the gas inlet body 31 facing each other. The first and second labyrinth forming bulkheads 37 and 38 are connected to the first and second maze forming bulkheads 37 and are drawn upward from the lower end of a position adjacent to the second maze forming bulkhead 38 . ) A third gas inlet groove 44 which is opened on both sides in the extending direction is formed.

The sixth and seventh labyrinth forming barrier ribs 45 and 46 are formed between the first and second labyrinth forming barrier ribs 37 and 38 at the side wall 31a of which the gas inlet body 31 has a short length to the gas inlet body 31. protrudes in parallel in the direction of the long side wall 31b, is located on the left and right sides of the communication hole 22, and extends to the fifth labyrinth forming partition wall 43 at equal intervals.

The eighth labyrinth forming barrier rib 47 connects the ends of the sixth and seventh maze forming barrier ribs 45 and 46 adjacent to the fifth labyrinth forming barrier rib 43, and the first and the first maze forming barrier ribs 47 are drawn upward from the center of the lower end. A fourth gas inlet groove 48 which is opened at both sides in the extending direction of the two labyrinth forming bulkheads 37 and 38 is formed.

The first to fourth gas inlet grooves 40 , 42 , 44 , 48 are formed through the first and second labyrinth forming partition walls 37 and 38 in the longitudinal extension direction with the upper part having a narrower width than the lower part.

The gas introduced into the space 32 through the bypass hole 33 of the gas inlet body 31 or the opening 56 of the cover 55 is the first to fourth gas inlet grooves 40, 42, 44, 48 ) and moves in a zigzag form.

Referring to FIG. 4 , the third labyrinth forming barrier rib 39 is formed shorter than the longer sidewall 31b among the opposite side walls 31a and 31b of the gas inlet body 31 , and the fourth labyrinth forming barrier rib Reference numeral 41 is shorter than the third maze forming barrier rib 39, the fifth maze forming barrier rib 43 is shorter than the fourth maze forming barrier rib 41, and the eighth maze forming barrier rib 47 is the fifth It is formed to have a shorter length than the labyrinth forming barrier rib 43 . In addition, the third to fifth maze-forming barrier ribs and the eighth maze-forming barrier rib are formed with an inclined lower end so as to face the cover 55 .

The battery cover according to the first embodiment of the present invention is formed in a single structure, so that it is easy to manufacture, and while the gas generated therein can be easily discharged, the leakage of the electrolyte can be prevented through the labyrinth forming part.

In addition, in the battery cover according to the first embodiment of the present invention, both sides 10a adjacent to the negative electrode bushing 17 and the positive electrode bushing 19 are convexly formed, so shape deformation due to heat shrinkage generated during manufacturing There is an advantage that straightness can be secured on both sides afterward.

Meanwhile, FIG. 5 shows a battery cover according to a second embodiment of the present invention. Components having the same functions as in the drawings shown above are denoted by the same reference numerals.

The battery cover according to the second embodiment of the present invention has the same structure as the battery cover according to the first embodiment of the present invention, except that the first to third passage extension ribs are further provided in the labyrinth forming part.

In the battery cover according to the second embodiment of the present invention, in the direction from the third labyrinth forming barrier rib 39 between the first gas inlet 40 and the second gas inlet 42 to the fourth labyrinth forming barrier rib 41 . The first passage extension rib 81 protrudes and extends in the vertical direction and is spaced apart from the fourth labyrinth forming barrier rib, and the fourth labyrinth forming barrier rib between the second gas inlet groove 42 and the third gas inlet 44 A second passage extension rib 82 protruding in the direction of the fifth labyrinth forming barrier rib 43 in (41), extending in the vertical direction, and spaced apart from the fifth labyrinth forming barrier rib 43, and a third gas inlet groove 44 ) and the fourth gas inlet groove (48) protruding from the fifth labyrinth forming barrier wall (43) in the direction of the eighth labyrinth forming barrier wall (47), extending in the vertical direction, and spaced apart from the eighth labyrinth forming barrier wall (47) A third flow path extension rib (83) is provided.

The battery cover according to the second embodiment of the present invention has the advantage that the gas flow path is further expanded by the first to third flow path extension ribs, and the blocking efficiency against the movement of the electrolyte in the communication hole direction can be improved.

Meanwhile, FIGS. 6 and 7 illustrate a battery cover according to a third embodiment of the present invention. Components having the same functions as in the drawings shown above are denoted by the same reference numerals.

The battery cover according to the third embodiment of the present invention has the same structure as the battery cover according to the first embodiment of the present invention, except that the electrolyte blocking auxiliary member 90 is further mounted on the gas inlet.

The first and second labyrinth forming bulkheads 37 and 38 have auxiliary member mounting grooves 88 formed between the third labyrinth forming bulkhead 39 and the fourth labyrinth forming bulkhead 41 so that the lower part has a thinner thickness than the upper part. 89) is provided.

The electrolyte blocking auxiliary member 90 extends vertically in parallel to each other to be mounted in the auxiliary member mounting grooves 88 and 89 of the first and second labyrinth forming partition walls 37 and 38, and The length of the gas discharge unit 20 to connect the plate-shaped first and second coupling bars 91 and 93 having a constant width in a direction orthogonal to the longitudinal direction, and the first and third coupling bars 91 and 93 A plurality of electrolyte blocking bars (95) extending in the direction and formed to be inclined so that one side adjacent to the gas discharge unit 20 is positioned lower than the other side adjacent to the bypass hole 33 or the opening 56, and spaced apart from each other up and down to provide

The electrolyte blocking bar 95 is formed so that one side in the width direction is inclined downward than the other side to induce the electrolyte that can be introduced to move downward, that is, toward the cover 55 .

On the other hand, FIGS. 8 to 10 show an automated device for selecting manufacturing defects of a battery cover according to an embodiment of the present invention.

An automated device 100 for manufacturing defect selection of a battery cover according to an embodiment of the present invention

A conveyor support frame 110 adjustable in length up and down, and an inspection conveyor 120 mounted on the conveyor support frame 110 and equipped with a camera 210 for inspecting the manufacturing state of the manufactured battery cover 1 ), and a carry-in conveyor 170 mounted rotatably up and down on one side in the longitudinal direction of the inspection conveyor 120, and a take-out conveyor 190 that is mounted rotatably up and down on the other side in the longitudinal direction of the inspection conveyor 120 and , the display unit 220 for displaying an image or image captured by the camera 210, and the positive electrode bushing 19 and the negative electrode bushing 17 of the battery cover through the image or image photographed by the camera 210. A control unit (not shown) for determining whether the mounting state and the mounting position is appropriate is provided.

Conveyor support frame 110 includes a plurality of lifting support frames 113 extending up and down on the upper end of the rectangular base frame portion 111 and the base frame portion 111 and having an internal space open upward, and the lower portion is raised and lowered. A plurality of lifting rods 116 inserted in the support frame part 113 and having an adjustable length inserted therein, and connected to the upper ends of the plurality of lifting rods 116, are formed in a rectangular shape to support the inspection conveyor 120 to be described later. and a conveyor support body part 115 that does. A plurality of through-holes (not shown) are formed in the corresponding side surfaces of the lifting support frame 113 and the lifting rod 116 , respectively. The elevating rod 116 may have a length protruding from the elevating support frame 113 by a through pin (not shown) penetrating the elevating support frame 113 and the elevating rod 116 .

9 and 10, the inspection conveyor 120, the first and second fixed frames 121 and 123, the first driving roller 125, the first driving motor 127, and the first and second Moving frames 131 and 133, a pair of rails 137, a slider (not shown), a connecting bar 141, an actuator 151, a first driven roller 156, and an inspection conveyor belt 161 and first and second tension maintaining rollers 165 and 167.

The first and second fixed frames 121 and 123 are respectively supported by the conveyor support frame 110, are spaced apart from each other at regular intervals, extend in parallel in the horizontal direction, and have a constant width in the vertical direction.

The first driving roller 125 is rotatably mounted on both sides on one side of the first and second fixed frames 121 and 123 adjacent to the carry-in conveyor 170 and a first driving motor 127 at one end protruding from the first fixed frame. ) is connected to the drive shaft.

The first and second moving frames 131 and 133 are coupled with sliders slidable on a pair of rails 137 and are positioned between the first fixed frame 121 and the second fixed frame 123 and are first fixed The frame 121 and the second fixed frame 123 are movably mounted adjacent to or away from the first driving roller 125 .

A pair of rails 137 are mounted on opposite sides of the first and second fixed frames, respectively, and a plurality of sliders are slidably mounted on one rail.

Both sides of the connecting bar 141 are coupled to the first and second moving frames 131 and 133 to connect the first and second moving frames 131 and 133 .

The actuator 151 is accommodated in a cylinder 152 mounted on one side of the first and second fixed frames 121 and 123 and the cylinder 152 and one end is connected to the connecting bar 141 to protrude with respect to the cylinder 152 . It is provided with a rod 153 that pulls or pushes the connecting bar 141 so that the first and second moving frames 131 and 133 are moved so that the length can be extended or reduced.

The actuator 151 may be a general hydraulic cylinder in which the advance and retreat of the rod 153 is controlled by supplying a fluid into the cylinder 152 . The automated device 100 for manufacturing defect selection of a battery cover according to an embodiment of the present invention pumps a fluid storage tank (not shown) for supplying fluid to the cylinder 152 and the fluid stored in the fluid storage tank to the cylinder 152 . It is preferable to have a fluid supply pump (not shown) that does.

The first driven roller 156 is rotatably mounted on both sides on the other side of the first and second moving frames 131 and 133 adjacent to the take-out conveyor 190 .

The inspection conveyor belt 161 is supported by the first driving roller 125 and the first driven roller 156 and rotates in an endless track when the first driving roller 125 rotates.

The first and second tension maintaining rollers 165 and 167 move away from each other when the first and second moving frames 131 and 133 move adjacent to the first driving roller 125, and the first and second moving frames 131 and 133 are first and second moving frames. When moving away from the first driving roller 125, the tension of the inspection conveyor belt 161 can be maintained when the first and second moving frames 131 and 133 move adjacent to each other.

The first tension maintaining roller 165 is rotatably mounted on one side of the first and second moving frames 131 and 133 . The second tension maintaining roller 167 is rotatably mounted on the other side of the first and second fixed frames 121 and 123 .

When the control unit determines that the battery cover (1) is unsuitable for manufacturing, a separation space (a) is formed between the inspection conveyor 120 and the take-out conveyor 190 to discharge the battery cover 1 determined to be defective by the inspection conveyor 120. Controls the length of the inspection conveyor belt 161 of the expansion and contraction. When the battery cover (1) manufacturing suitability is determined, the control unit lengthens the actuator so that the gums conveyor belt 161 is stretched and contracted to be adjacent to the carry-out conveyor 190, so that the first and second moving frames 131 and 133 are transported out of the carrying-out conveyor 190 ) to the side.

On the other hand, the carry-in conveyor 170 transfers the manufactured battery cover 1 to the inspection conveyor 120, and is connected to the first and second brackets 185 and 187 coupled to one side of the inspection conveyor 120.

The carry-in conveyor 170 is supported by the first and second brackets 185 and 187, respectively, and is spaced apart from each other at regular intervals and extends in parallel with third and fourth fixed frames 171 and 173, and third and fourth fixed frames 171 and 173. The second driving roller 175 is rotatably mounted on both sides on the other side and connected to the second driving motor 177 at one end, and both sides are rotatably on one side of the third and fourth fixed frames 171 and 173. The mounted second driven roller 181, the second driving roller 175 and the second driven roller 181 are supported and the carry-in conveyor belt 183 is rotatable in an endless track when the second driving roller 175 rotates. be prepared

The first and second brackets 185 and 187 extend in the circumferential direction around the second driving roller 175 so that the carry-in conveyor 170 can be angled in the vertical direction with respect to the inspection towel conveyor 120 in the vertical direction. Through-holes 186 of arc-shaped long holes are formed, respectively.

And, the carry-out conveyor 190 is to take over the battery cover 1, which is determined to be manufactured normally, to the inspection conveyor 120 and transfer it to the outside, and the third and fourth brackets coupled to the other side of the inspection conveyor 120 ( 205,207).

The carry-out conveyor 190 is supported by the third and fourth brackets 205 and 207, respectively, and the fifth and sixth fixed frames 191 and 193 extended in parallel and spaced apart at regular intervals, and the fifth and sixth fixed frames 191, 193 Both sides are rotatably mounted on one side of the third driving roller 195 connected to the third driving motor 197 at one end, and both sides are rotatably mounted on one side of the fifth and sixth fixed frames 191 and 193 and a third driven roller 201, which is supported by the third driving roller 195 and the third driven roller 201, and is provided with a carry-out conveyor belt 203 that is rotatable in an endless track when the third driving roller 195 rotates. do.

The third and fourth brackets 205 and 207 extend in the circumferential direction around the third driving roller 195 so that the take-out conveyor 190 can be angled in the vertical direction with respect to the inspection towel carrier 120 in the vertical direction. The arc-shaped long hole-shaped through-holes 208 are respectively formed.

The camera 210 extends in the vertical direction on both sides of the first fixed frame 121 and the second fixed frame 123 and protrudes upward with respect to the inspection conveyor belt 161 on both sides of the two pairs of guide bars 213 and 215 This is fixed and mounted on the upper end of the plate 217 through which the center side is formed, and the battery cover seated on the inspection conveyor belt is photographed.

The control unit stores images such as the shape of the cover body portion 10 of the normally manufactured battery cover, the mounting position of the negative electrode bushing 17 and the positive electrode bushing 19, and the insert-molded state, and the image captured by the camera Alternatively, it can be compared with the image to determine whether it is defective.

The apparatus 100 for automatically selecting manufacturing defects of a battery cover according to an embodiment of the present invention includes a power supply unit (not shown) for supplying power for driving the first to third driving motors, the fluid supply pump and the control unit, and an operation unit (not shown) is provided. The power supply unit may have a plug and outlet structure capable of supplying commercial power. A plurality of buttons or operation levers may be applied to the operation unit.

The automated device 100 for manufacturing defect selection of the battery cover according to an embodiment of the present invention reads whether the battery cover 1 is defective with the camera 210, and is determined as defective through the inspection conveyor belt 161 that is stretched in length. Since the battery cover can be automatically discharged to the lower side of the inspection conveyor 120, there is an advantage that the production efficiency can be improved by reducing the time for determining and sorting defects.

As described above, the battery cover of the present invention and the automatic manufacturing defect selection device have been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those of ordinary skill in the art can make various modifications and equivalents therefrom. It will be appreciated that other embodiments are possible. Accordingly, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

1: battery cover 10: cover body part
20: gas outlet 30: gas inlet
100: automatic rotation device for manufacturing defect selection of the battery cover
110: conveyor support frame 120: inspection conveyor
121: first fixed frame 123: second fixed frame
131: first moving frame 133: second moving frame
151: actuator 161: inspection conveyor belt
165: first tension maintaining roller 167: second tension maintaining roller
170: carry-in conveyor
190: take out conveyor

Claims (6)

a cover body formed to open and close the upper part of the case in which the electrolyte is charged;
a gas discharge unit disposed at a lower portion of the cover body for discharging gas generated inside the case to the outside of the case;
and a gas inlet formed to surround the communication hole of the gas outlet so that the gas generated by being inserted into the case can be introduced into the gas outlet at a designated position; and
The cover body has a negative electrode bushing and a positive electrode bushing respectively coupled to both sides in the longitudinal direction, and both sides adjacent to the negative electrode bushing and the positive electrode bushing are convex to compensate for concave deformation due to heat shrinkage during manufacturing. formed,
The gas inlet
A gas inlet body extending in the direction of the case to be coupled around the communication hole of the gas outlet and having a space portion communicating with the communication hole, and a gas formed inside the space and flowing into the space to the gas outlet A labyrinth forming part for guiding and extending the movement path of the gas and preventing the electrolyte introduced into the space from moving to the communication hole, and rotatably coupled to the upper part of the gas inlet body to remove the lower part of the gas inlet body and a cover having the opening to open and close, and to allow gas to pass from the inside of the case to the space;
The gas inlet body is
It is formed in the shape of a square column with an open lower end, and one side wall of the side walls orthogonal to the longitudinal direction of the gas discharge unit extends downwardly longer than the other side wall, and is located in a direction parallel to the longitudinal direction of the gas discharge unit. The lower ends of both sides of the wall are formed to be inclined,
The maze forming part
The first protruding sidewalls from the short sidewalls of the gas inlet body facing each other in the direction of the long sidewalls extend at equal intervals to the long sidewalls among the opposite sidewalls of the gas inlet body and a second labyrinth forming barrier;
The first and second labyrinth forming bulkheads are connected to each end of the first and second labyrinth forming bulkheads adjacent to the long sidewalls among the opposite side walls of the gas inlet body, and the first and second labyrinth forming bulkheads extend upward from the center of the lower end. a third labyrinth-forming bulkhead having a first gas inlet groove that opens on both sides in the direction;
The first maze forming barrier rib and the second maze forming barrier rib are connected at positions spaced apart from each other in the direction of the short side wall among the opposite side walls of the gas inlet body with respect to the third maze forming barrier rib, and the first maze forming barrier rib is formed. a fourth labyrinth forming bulkhead having a second gas inlet groove that is drawn upward from the lower end of a position adjacent to the bulkhead and opened at both sides in the extending direction of the first and second labyrinth forming bulkheads;
The first maze forming barrier rib and the second maze forming barrier rib are connected at a position spaced apart from each other in the direction of the shorter side wall among the opposite side walls of the gas inlet body with respect to the fourth maze forming barrier rib, and the second maze forming barrier rib is formed. a fifth labyrinth forming barrier rib which is drawn upward from the lower end of a position adjacent to the barrier rib and has a third gas inlet groove which is opened at both sides in the extending direction of the first and second labyrinth forming barrier ribs;
Between the first and second labyrinth forming bulkheads, the gas inlet body is protruded from the short side wall in the direction of the long gas inlet body length sidewall, and is positioned on the left and right sides of the communication hole, and the fifth labyrinth forming bulkhead 6th and 7th labyrinth forming bulkheads extending at equal intervals to the
A fourth gas that connects each end of the sixth and seventh maze-forming barrier ribs adjacent to the fifth maze-forming barrier rib, enters upward from the center of the lower end, and has both sides open in the extending direction of the first and second maze forming barrier ribs A battery cover comprising an eighth labyrinth-forming partition having an inlet groove formed therein. delete According to claim 1, wherein the labyrinth forming part
A first flow passage protruding from the third labyrinth forming bulkhead between the first gas inlet groove and the second gas inlet forming barrier in the direction of the fourth labyrinth forming barrier wall, extending in the vertical direction, and spaced apart from the fourth labyrinth forming barrier wall extended ribs,
A second flow passage protruding from the fourth maze-forming barrier rib between the second gas inlet groove and the third gas inlet groove in the direction of the fifth maze forming barrier rib, extending in the vertical direction, and spaced apart from the fifth maze forming barrier rib extended ribs,
A third flow path protruding from the fifth labyrinth forming barrier rib between the third gas inlet groove and the fourth gas inlet forming barrier in the direction of the eighth labyrinth forming barrier rib, extending in the vertical direction, and spaced apart from the eighth maze forming barrier rib Battery cover, characterized in that it further comprises an extension rib. The method of claim 1,
Each of the first and second maze forming barrier ribs has an auxiliary member mounting groove formed between the third maze forming barrier rib and the fourth maze forming barrier rib so that the thickness of the lower part is thinner than the upper part, respectively;
The maze forming part
Plate-shaped first and second couplings extending vertically in parallel to each other to be mounted in the auxiliary member mounting grooves of the first and second labyrinth forming bulkheads and having a constant width in a direction orthogonal to the longitudinal direction of the gas outlet and a plurality of electrolyte blocking bars extending in the longitudinal direction of the gas discharge unit to connect the first and second coupling bars, one side adjacent to the gas discharge unit being inclined to be positioned lower than the other side, and spaced apart from each other by a predetermined distance up and down Battery cover, characterized in that it further comprises an electrolyte blocking auxiliary member comprising a. Conveyor support frame adjustable in length up and down
an inspection conveyor mounted on the upper part of the conveyor support frame and equipped with a camera for inspecting the manufacturing state of the manufactured battery cover;
And a carry-in conveyor mounted so as to be rotatable up and down on one side in the longitudinal direction of the inspection conveyor;
And a carry-out conveyor which is mounted rotatably up and down on the other side in the longitudinal direction of the inspection conveyor,
And a display unit for displaying the image or image taken by the camera;
A control unit for determining whether the battery cover is defective by comparing an image or image captured by the camera capable of confirming the mounting state and mounting position of the positive electrode bushing and the negative electrode bushing of the battery cover with a pre-stored image,
the control unit
An automated device for manufacturing defective selection of a battery cover, characterized in that it controls the conveyor belt of the inspection conveyor to expand and contract in length so that the battery cover, which is determined to be defective, is discharged between the inspection conveyor and the take-out conveyor. The method of claim 5, wherein the inspection conveyor is
First and second fixed frames each supported by the conveyor support frame and spaced apart from each other and extending in parallel in the horizontal direction;
a first driving roller which is rotatably mounted on both sides on one side of the first and second fixed frames and is connected to a first driving motor at one end;
first and second moving frames positioned between the first and second fixed frames and movably mounted adjacent to or away from the first driving roller with respect to the first and second fixed frames;
a connecting bar connecting the first and second moving frames;
A cylinder mounted on one side of the first and second fixed frames, and accommodated in the cylinder and one end connected to the connecting bar, the length protruding with respect to the cylinder is extendable or retractable to extend or reduce the first and second movement An actuator having a rod that pulls or pushes the connecting bar so that the frame is moved;
a first driven roller which is rotatably mounted on both sides to the other side of the first and second moving frames;
an inspection conveyor belt supported by the first driving roller and the first driven roller and rotatable in an endless track when the first driving roller rotates;
When the first and second moving frames move adjacent to the first driving roller, they move away from each other, and when the first and second moving frames move away from the first driving roller, the first and second moving frames are adjacent to each other. So that the tension of the inspection conveyor belt can be maintained during movement, a first loading roller rotatably mounted on one side of the first and second moving frames, and rotatably on the other side of the first and second fixed frames An automated device for manufacturing defect selection of a battery cover, characterized in that it comprises a second tension maintaining roller to be mounted.

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