CN112038721A - Soft packet of power battery roll-in degassing unit - Google Patents

Abstract

The invention discloses a soft package power battery rolling degassing device which is used for discharging gas in a battery body into a battery air bag, wherein the battery body and the battery air bag are of an integrated structure and comprise a support, a limiting mechanism for limiting the battery body, a rolling mechanism for rolling the surface of the battery body and a clamping mechanism for clamping the opening end of the air bag, the limiting mechanism, the rolling mechanism and the clamping mechanism are all fixed on the support, the frame comprises a rack, a base, a supporting plate arranged above the base and a jacking cylinder for driving the supporting plate to move, the limiting mechanism penetrates through the supporting plate and is fixedly connected with the base, the rolling mechanism and the clamping mechanism are fixed on the supporting plate, one end of the rack is fixedly connected with the base, and the other end of the rack extends towards the clamping mechanism; this application can effectively detach the inside waste gas of battery through the roll-in effect that compresses tightly between first compression roller and the second compression roller, guarantees the quality of battery, makes things convenient for the processing of subsequent handling to the battery.

Description

A soft-pack power battery roller degassing device

technical field

The invention relates to the technical field of battery degassing, in particular to a roll-pressing degassing device for soft-pack power batteries.

Background technique

Due to the decreasing energy in modern society, the pollution caused by traditional energy is becoming more and more serious. As a new type of energy storage power source, lithium-ion battery has the advantages of high energy, high working voltage, small size and long storage life. As contemporary people have higher and higher requirements for energy and the environment, power lithium batteries do less damage to the human body and the environment during the manufacturing process. Compared with traditional lead-acid batteries, it has great advantages. With the aggravation of environmental problems caused by the emission of automobile exhaust gas, power lithium batteries can also replace fuel as a new energy source for automobiles.

Power lithium-ion batteries are used more and more in automobiles, and the technology is more mature. Electric vehicles will bring revolutionary changes to the traditional automobile industry. Therefore, there are higher requirements for the time and efficiency of production and processing of battery cells. , Because of the needs of the production process of the pouch battery, gas (chemical reaction inside the battery) will be generated after the battery formation (battery charge and discharge) process, causing the pouch power battery to swell, which will affect the quality of the battery and even cause the battery to contact scratches due to flatulence caused by the fire, the present invention can be very good

SUMMARY OF THE INVENTION

Based on the technical problems existing in the background art, the present invention proposes a roll-pressing degassing device for a soft-pack power battery, which can effectively remove the exhaust gas inside the battery, ensure the quality of the battery, and facilitate the processing of the battery in subsequent procedures.

The invention proposes a roll-pressing degassing device for a soft-pack power battery, which is used to discharge the gas in the battery body into the battery air bag. The limiting mechanism, the rolling mechanism used to roll the surface of the battery body and the clamping mechanism used to clamp the open end of the air bag, the limiting mechanism, the rolling mechanism and the clamping mechanism are all fixed on the bracket.

Further, the frame includes a rack, a base, a support plate arranged above the base, and a lifting cylinder for driving the movement of the support plate, the limit mechanism is fixedly connected to the base through the support plate, and the rolling mechanism and the clamping mechanism The mechanism is fixed on the support plate, one end of the rack is fixedly connected with the base, and the other end extends toward the clamping mechanism.

Further, the rolling mechanism includes a movable rolling mechanism and a fixed rolling mechanism respectively arranged on both sides of the limit mechanism, and the rolling ends of the movable rolling mechanism and the fixed rolling mechanism are respectively rolled with the two sides of the battery body. connected, the movable rolling mechanism meshes with the fixed rolling mechanism for transmission, and the fixed rolling mechanism meshes with the rack for transmission.

Further, the fixed rolling mechanism includes a first pressing roller, a first rotating mechanism fixed on the bracket and a first gear mechanism engaged with the rack, and a first fixed plate is provided on the rotating end of the first rotating mechanism, Both the first rotating mechanism and the first gear mechanism are fixedly connected with the first fixing plate through the bearing seat.

Further, the first gear mechanism includes a first rotating roller and a first gear arranged at both ends of the first rotating roller, the first gear meshes with the rack, and the two ends of the first rotating roller are connected to the first fixing plate through the bearing seat. The first rotating mechanism includes a first rotating shaft and a guide shaft, one end of the guide shaft is rotatably connected with the first rotating shaft, and the other end is rotatably connected with the bracket.

Further, the movable rolling mechanism includes a second pressing roller, a second rotating mechanism fixed on the bracket, and a second gear mechanism engaged with the first gear, and the rotating end of the second rotating mechanism is provided with a second fixing plate. , the second rotating mechanism and the second gear mechanism are fixedly connected with the second fixed plate through the bearing seat;

Further, the second gear mechanism includes a second rotating roller and a second gear arranged at both ends of the second rotating roller, the second gear meshes with the first gear, and the two ends of the second rotating roller are fixed to the second through bearing seats. The plate is rotationally connected; the second rotational mechanism includes a second rotational shaft and a pressing cylinder, the fixed end of the pressing cylinder is rotationally connected to the bracket, and the telescopic end is rotationally connected to the second rotational roller.

Further, the limiting mechanism includes a platform for carrying the battery body and a guide bar oppositely arranged, one end of the guide bar is fixed on the platform, the other end is extended toward the clamping mechanism, and the platform is fixedly connected to the base through the support plate. .

Further, the clamping mechanism includes a clamping cylinder, a clamping block arranged on the extension end of the clamping cylinder, and a support plate for fixing the clamping cylinder, and the support plate is fixed on the bracket.

The advantages of the roll-pressing degassing device for soft-pack power batteries provided by the present invention are: the roll-pressing and degassing device for soft-pack power batteries provided in the structure of the present invention passes through the air between the first pressing roller and the second pressing roller. The pressing and rolling action can effectively remove the waste gas inside the battery, ensure the quality of the battery, and facilitate the processing of the battery in the subsequent process.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Figure 2 is a schematic structural diagram of a battery body and an air bag;

Among them, 1-bracket, 2-limiting mechanism, 3-rolling mechanism, 4-clamping mechanism, 6-rack, 7-base, 21-guide bar, 22-platform, 8-guide column, 9-support plate , 31-active rolling mechanism, 32-fixed rolling mechanism, 41-clamping cylinder, 42-clamping block, 43-support plate, 311-second pressing roller, 314-second fixed plate, 315-second Rotating roller, 316-second gear, 317-second rotating shaft, 318-pressing cylinder, 321-first pressing roller, 324-first fixing plate, 325-first rotating roller, 326-first gear

Detailed ways

Hereinafter, the technical solutions of the present invention will be described in detail through specific embodiments, and many specific details will be set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementation disclosed below.

As shown in Figures 1 to 2, a soft-pack power battery roller degassing device proposed by the present invention is used to discharge the gas in the battery body into the battery air bag. The battery body and the battery air bag are integrated in structure, including Bracket 1, Limiting mechanism 2 for limiting the battery body, Rolling mechanism 3 for surface rolling of the battery body, Clamping mechanism 4 for clamping the open end of the air bag, Limiting mechanism 2, Rolling Both the mechanism 3 and the clamping mechanism 4 are fixed on the bracket 1 .

The limiting mechanism 2 limits the battery body, so that the battery body remains stationary, and the rolling mechanism 3 performs rolling motion on the surface of the battery body to discharge the gas in the battery body into the air bag, and the air bag is cleaned by the subsequent process. The extraction of gas can well remove the waste gas inside the battery, ensure the quality of the battery, facilitate the processing of the battery in the subsequent process, and avoid the battery body flatulence caused by the waste gas, which will lead to the defect of fire caused by the battery contact and scratching. The safety of the battery body production.

Among them, in order to realize the relative movement between the battery body and the rolling mechanism 3, the bracket 1 includes a rack 6, a base 7, a support plate 9 arranged above the base 7, and a lifting cylinder for driving the movement of the support plate, The limit mechanism 2 is fixedly connected to the base 7 through the support plate 9, the rolling mechanism 3 and the clamping mechanism 4 are fixed on the support plate 9, one end of the rack 6 is fixedly connected to the base 7, and the other end extends to the clamping mechanism 4 . The support plate 9 realizes the movement of the rolling mechanism 3 and the clamping mechanism 4 through the lifting action of the lifting cylinder, thereby effectively realizing the discharge of the exhaust gas in the battery body.

In this application, the limiting mechanism 2 includes a platform 22 for carrying the battery body and a guide bar 21 arranged oppositely. One end of the guide bar 21 is fixed on the platform 22, and the other end extends toward the clamping mechanism 4. The platform 22 is fixedly connected to the base through the supporting plate; the clamping mechanism 4 includes a clamping cylinder 41, a clamping block 42 arranged at the extension end of the clamping cylinder 41, and a supporting plate 43 for fixing the clamping cylinder 41. The supporting plate 43 is fixed on the bracket 1 . The rolling mechanism 3 moves along the elongation direction of the guide bar 21 by the lifting action of the lifting cylinder 53, so that the rolling mechanism 3 on both sides of the battery body completes the discharge of exhaust gas in the battery body through rolling. Preferably, the length of the elongated end of the guide bar should exceed the position of the clamping end of the clamping mechanism 4, so as to ensure that the rolling mechanism 3 can move under the guiding action within a large range of motion.

The clamping mechanism 4 includes a clamping cylinder 41, a clamping block 42 arranged at the extension end of the clamping cylinder 41, and a supporting plate 43 for fixing the clamping cylinder 41. The supporting plate 43 is fixed on the bracket 1, and thus clamps The elongated ends of the cylinder 41 are arranged on both sides of the guide channel formed by the plurality of guide bars 12 to facilitate clamping the air bag on the battery body in the guide bars. Preferably, four guide bars 12 are provided, and the four guide bars 12 They correspond to each other, and the formed guide channels are used to limit the battery body.

Further, the rolling mechanism 3 includes a movable rolling mechanism 31 and a fixed rolling mechanism 32 respectively disposed on both sides of the limit mechanism 2, and the rolling ends of the movable rolling mechanism 31 and the fixed rolling mechanism 32 are respectively The two sides of the battery body are connected in a rolling manner, the movable rolling mechanism 31 is engaged with the fixed rolling mechanism 32 for transmission, and the fixed rolling mechanism 32 is engaged with the rack 6 for transmission.

The meshing transmission of the movable rolling mechanism 31 and the fixed rolling mechanism 32, and the meshing transmission of the fixed rolling mechanism 32 and the rack 6, makes the movable rolling mechanism 31 and the fixed rolling mechanism 32 move along the extension direction of the rack 6 to Rolling on both sides of the battery body is achieved.

Specifically, the fixed roller pressing mechanism 32 includes a first pressing roller 321, a first rotating mechanism fixed on the bracket 1, and a first gear mechanism engaged with the rack 6. The rotating end of the first rotating mechanism is provided with a first rotating mechanism. A fixing plate 324, the first rotating mechanism and the first gear mechanism are fixedly connected with the first fixing plate 324 through the bearing seat. The first gear mechanism includes a first rotating roller 325 and a first gear 326 arranged at both ends of the first rotating roller 325. The first gear 326 is engaged with the rack 6, and both ends of the first rotating roller 325 are connected to the first rotating roller 325 through the bearing seat. A fixed plate 324 is rotatably connected; the first rotating mechanism includes a first rotating shaft and a guide shaft, one end of the guide shaft is rotatably connected with the first rotating shaft, and the other end is rotatably connected with the bracket 1 .

The first pressing roller 321, the first rotating roller 325 and the first rotating shaft are all fixedly connected to the first fixing plate 324 through the bearing seat, preferably the first fixing plate 324 is a triangular plate, the first pressing roller 321, the first rotating roller 325, The first rotating shafts are arranged at the three corners of the triangle plate to realize the meshing transmission of the first gear 326 to drive the movement of the first pressing roller 321; , has the function of rotating buffer, and can effectively press the roller for the battery body in different positions.

Further, the movable rolling mechanism 31 includes a second pressing roller 311, a second rotating mechanism fixed on the bracket 1 and a second gear mechanism engaged with the first gear 326, and the rotating end of the second rotating mechanism is provided with The second fixed plate 314, the second rotating mechanism and the second gear mechanism are fixedly connected to the second fixed plate 314 through the bearing seat; the second gear mechanism includes the second rotating roller 315 and the second rotating roller 315. The second gear 316, the second gear 316 meshes with the first gear 326, the two ends of the second rotating roller 315 are rotatably connected to the second fixed plate 314 through the bearing seat; the second rotating mechanism includes a second rotating shaft 317 and a pressure The cylinder 318 is tightened, the fixed end of the cylinder 318 is rotatably connected with the bracket 1 , and the telescopic end is rotatably connected with the second rotating roller 315 .

The telescopic motion of the pressing cylinder 318 can adjust the rolling gap between the second pressing roller 311 and the first pressing roller 321, which is convenient for placing the battery body on the one hand, and realizes the rolling effect on the battery body of different sizes on the other hand. .

Further, in order to realize the stable lifting movement of the support plate 9, the four corners of the upper surface of the base 7 are respectively provided with guide posts 8, one end of the guide posts 8 is fixedly connected with the base 7, and the other end is fixedly connected with the support plate 51, and the cylinder is lifted. The elongated end of the base is fixedly connected to the support plate through the base. The arrangement of the guide post 8 enables the support plate 9 to rise and fall stably, thereby improving the rolling effect of the battery body.

Working process: The pressing cylinder 318 is contracted, so that the second pressing roller 311 moves away from the first pressing roller 321, so as to place the battery body in the guide bar 21, and push the air bag to move the clamping block through the clamping cylinder 41 To clamp the air bag, at the initial fixed position of the battery body and the air bag, the distance between the air bag and the battery body is relatively close, and the movement of the fixed end of the air bag does not affect the fixing of the battery body; after the battery body and the air bag are fixed, press the cylinder tightly. 318 stretches to compress the surface of the battery body, the jacking cylinder stretches, the second pressing roller 311 and the first pressing roller 321 move upward along the battery body, and roll-press and degas the battery body until the degassing is completed, and press The air cylinder 318 is contracted, the battery body is removed, and the gas in the air bag can be removed through subsequent processes.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (9)

1. The utility model provides a laminate polymer power battery roll-in degassing unit for in discharging the battery gas pocket with the gas in the battery body, battery body and battery gas pocket structure as an organic whole, its characterized in that, including support (1), stop gear (2) that are used for spacing battery body, be used for carrying out the roll-in mechanism (3) of surface roll-in and be used for pressing from both sides clamping mechanism (4) of pressing from both sides tight air pocket open end to the battery body, stop gear (2), roll-in mechanism (3) and clamping mechanism (4) all are fixed in on support (1).

2. The soft package power battery rolling degassing device according to claim 1, wherein the support (1) comprises a rack (6), a base (7), a supporting plate (9) arranged above the base (7) and a jacking cylinder for driving the supporting plate to move, the limiting mechanism (2) penetrates through the supporting plate (9) and is fixedly connected with the base (7), the rolling mechanism (3) and the clamping mechanism (4) are fixed on the supporting plate (9), one end of the rack (6) is fixedly connected with the base (7), and the other end of the rack extends towards the clamping mechanism (4).

3. The soft package power battery rolling degassing device according to claim 2, wherein the rolling mechanism (3) comprises a movable rolling mechanism (31) and a fixed rolling mechanism (32) which are respectively arranged at two sides of the limiting mechanism (2), rolling ends of the movable rolling mechanism (31) and the fixed rolling mechanism (32) are respectively in rolling connection with two sides of the battery body, the movable rolling mechanism (31) is in meshing transmission with the fixed rolling mechanism (32), and the fixed rolling mechanism (32) is in meshing transmission with the rack (6).

4. The soft package power battery rolling degassing device according to claim 3, wherein the fixed rolling mechanism (32) comprises a first pressing roller (321), a first rotating mechanism fixed on the bracket (1), and a first gear mechanism engaged with the rack (6), a first fixing plate (324) is arranged at a rotating end of the first rotating mechanism, and the first rotating mechanism and the first gear mechanism are both fixedly connected with the first fixing plate (324) through a bearing seat.

5. The soft-package power battery roll degassing device according to claim 4, wherein the first gear mechanism comprises a first rotating roller (325) and first gears (326) arranged at two ends of the first rotating roller (325), the first gears (326) are meshed with the rack (6), and two ends of the first rotating roller (325) are rotatably connected with the first fixing plate (324) through bearing seats;

the first rotating mechanism comprises a first rotating shaft and a guide shaft, one end of the guide shaft is rotatably connected with the first rotating shaft, and the other end of the guide shaft is rotatably connected with the support (1).

6. The soft package power battery roll degassing device according to claim 3, wherein the movable rolling mechanism (31) comprises a second rolling roller (311), a second rotating mechanism fixed on the support (1), and a second gear mechanism engaged with the first gear (326), a second fixing plate (314) is arranged at a rotating end of the second rotating mechanism, and the second rotating mechanism and the second gear mechanism are both fixedly connected with the second fixing plate (314) through a bearing seat.

7. The soft-package power battery roll degassing device according to claim 6, wherein the second gear mechanism comprises a second rotating roller (315) and second gears (316) arranged at two ends of the second rotating roller (315), the second gears (316) are meshed with the first gears (326), and two ends of the second rotating roller (315) are rotatably connected with the second fixing plate (314) through bearing seats;

the second rotating mechanism comprises a second rotating shaft (317) and a pressing cylinder (318), the fixed end of the pressing cylinder (318) is rotatably connected with the support (1), and the telescopic end of the pressing cylinder is rotatably connected with the second rotating roller (315).

8. The soft package power battery roll degassing device according to claim 7, wherein the limiting mechanism (2) comprises a platform (22) for bearing the battery body and oppositely arranged guide strips (21), one end of each guide strip (21) is fixed on the platform (22), the other end of each guide strip extends towards the clamping mechanism (4), and the platform (22) penetrates through the supporting plate and is fixedly connected with the base.

9. The soft-package power battery roll degassing device according to claim 8, wherein the clamping mechanism (4) comprises a clamping cylinder (41), a clamping block (42) arranged at the extended end of the clamping cylinder (41), and a supporting plate (43) for fixing the clamping cylinder (41), and the supporting plate (43) is fixed on the bracket (1).

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