Soft package lithium battery cold and hot pressing device

Abstract

The utility model discloses a soft package lithium battery cold and hot pressing device, which relates to the technical field of soft package lithium batteries, and comprises a pressing box, a laminate is fixedly arranged at the bottom of the inner wall of the pressing box, a pressing assembly and an adjusting assembly are arranged at the bottom of the laminate, the pressing assembly comprises a first electric hydraulic cylinder, and the first electric hydraulic cylinder is fixedly arranged in the middle of the top end of the pressing box; the pressing device has the beneficial effects that the positive and negative rotation motor is arranged in the pressing assembly to drive the second gear to rotate, the second gear is meshed with the first gears, the rotation of the second gear drives the two first gears to rotate at the same time, and the rotation of the two first gears drives the two threaded shafts to rotate at the same time; the two threaded shafts rotate to drive the connecting rods to move on the threaded shafts, the two connecting rods move to drive the two movable grooves to move relatively, the two movable grooves move to proper positions to press the sleeve to make contact with the battery, the side face of the battery is pressed conveniently, and the situation that omission is generated, and the pressing deformation effect is affected is avoided.

Description

Technical Field

[0001] The utility model relates to a cold and hot pressing device, in particular to a cold and hot pressing device for a soft-pack lithium battery, belonging to the technical field of soft-pack lithium batteries. Background Art

[0002] Soft-pack lithium batteries are just liquid lithium-ion batteries covered with a polymer shell. They are structurally packaged in aluminum-plastic film. In the event of a safety hazard, the soft-pack battery will only bulge and crack at best.

[0003] Among them, the lithium battery hot and cold pressing device with application number "CN201620702509.5" can include a lower base plate, an upper pressure plate, a driving element that drives the upper pressure plate to press against the lower base plate, and a left plate and a right plate with adjustable spacing arranged on the lower base plate. A battery cell placement position is formed between the left plate and the right plate. When working, the driving element drives the upper pressure plate to move downward and press on the upper surface of the battery cell, and the left plate and the right plate respectively press against the left and right sides of the battery cell. The utility model adds a left side plate and a right side plate on the basis of the original one. Such an arrangement can fix the side of the battery during pressing, avoiding the phenomenon of the battery being deformed by pressing, and can also make the diaphragm and the pole piece on the side be thermally polymerized, so that the proportion of the pole group deformation is reduced, thereby improving the quality rate and reducing resource waste; because the distance between the left side plate and the right side plate is adjustable, the device can adapt to batteries of different sizes, with a wider range of uses and strong practicality. Further retrieval found that a lithium battery hot and cold pressing device with application number "CN201820469854.8" will include a hot and cold pressing workbench, and an upper plate arranged on the hot and cold pressing workbench. The utility model comprises a pressing module, a lower pressing module, a left pressing module and a right pressing module, wherein the lower pressing module is fixed on the table top of the cold and hot pressing workbench for placing the lithium battery to be processed, and the upper pressing module can be mounted above the lower pressing module for punching up and down for cold and hot pressing of the lithium battery, and the left pressing module and the right pressing module are respectively arranged on the left and right sides of the lower pressing module for clamping and fixing the left and right sides of the lithium battery. The utility model can fix the side of the battery during the cold and hot pressing production process of the lithium battery, thereby avoiding the phenomenon of the battery being deformed by compression, and can also make the diaphragm and the pole piece on the side be thermally polymerized, so that the proportion of pole group deformation is reduced, thereby improving the quality rate and reducing resource waste.

[0004] However, the above two types still have certain shortcomings when used. Most of the existing pressing devices are pressing plates of fixed sizes, which are prone to omissions when pressing the side, affecting the pressing deformation effect and being inconvenient to adjust the pressing angle, affecting the pressing efficiency. Utility Model Content

[0005] The utility model aims to provide a cold and hot pressing device for soft-pack lithium batteries to solve the problem that most of the existing pressing devices mentioned in the above background technology are pressing plates of fixed size, which are prone to omission when pressing the side and are inconvenient to adjust the pressing angle.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a soft-pack lithium battery hot and cold pressing device, comprising a pressing box, a layer plate is fixedly provided at the bottom of the inner wall of the pressing box, a pressing assembly and an adjustment assembly are provided at the bottom of the layer plate, the pressing assembly comprises a first electric hydraulic cylinder, the first electric hydraulic cylinder is fixedly arranged in the middle of the top of the pressing box, a pressing plate is movably provided at the top of the inner wall of the pressing box, the output end of the first electric hydraulic cylinder is fixedly connected to the middle of the top of the pressing plate, the adjustment assembly comprises a rotating motor, the rotating motor is fixedly arranged in the middle of the bottom end of the layer plate, and the output shaft of the rotating motor is fixedly provided with an adjustment disk.

[0007] As a preferred technical solution of the utility model, threaded shafts are rotatably provided on both sides of the bottom end of the inner wall of the pressing box, one end of the two threaded shafts are rotatably connected to the two sides of one side of the inner wall of the pressing box, and one end of the two threaded shafts are rotatably arranged on both sides of the bottom of the other side of the pressing box.

[0008] As a preferred technical solution of the utility model, the surface thread sleeves of the two threaded shafts are provided with connecting rods, the tops of the four connecting rods are slidably inserted into the tops of the layer plates, and sliding grooves matching the movable paths of the connecting rods are opened around the tops of the layer plates.

[0009] As a preferred technical solution of the utility model, a first gear is fixedly sleeved at one end of the two threaded shafts, a connecting plate is fixedly provided at the bottom of the other side of the pressing box, a forward and reverse motor is fixedly provided at the bottom end of the connecting plate through a fixing seat, a second gear is fixedly provided on the output shaft of the forward and reverse motor, and the two first gears are meshingly connected with the second gear.

[0010] As a preferred technical solution of the utility model, the top ends of the four connecting rods on the same side are fixedly connected with a movable groove, movable blocks are slidably provided inside the two movable grooves, a second electric hydraulic cylinder is fixedly provided on one side of the two movable grooves, and the two second electric hydraulic cylinders are respectively fixedly connected to the middle part of one side of the two movable blocks, a U-shaped plate is fixedly provided on one side of the two movable blocks, a rotating shaft is rotatably provided inside the two U-shaped plates through a bearing, and a pressing sleeve is fixedly provided on the middle part of the two rotating shafts.

[0011] As a preferred technical solution of the utility model, an adjustment groove matched with the adjustment disk is opened in the middle of the top of the layer plate, and the adjustment disk rotates inside the adjustment groove.

[0012] As a preferred technical solution of the utility model, one side of the pressing box is hinged with a box door, and a switch panel is fixedly provided at a corner of the other side of the pressing box. The surface of the switch panel is respectively installed with a first electric hydraulic cylinder switch, a forward and reverse motor switch, a second electric hydraulic cylinder switch and a rotating motor switch. The first electric hydraulic cylinder, the forward and reverse motor, the second electric hydraulic cylinder and the rotating motor are electrically connected to an external power supply through the first electric hydraulic cylinder switch, the forward and reverse motor switch, the second electric hydraulic cylinder switch and the rotating motor switch, respectively.

[0013] Compared with the related art, the soft-pack lithium battery hot and cold pressing device provided by the utility model has the following beneficial effects:

[0014] 1. The second gear is driven to rotate by setting a forward and reverse motor in the pressing assembly, and the second gear is meshed with the first gear. The rotation of the second gear drives the two first gears to rotate simultaneously, and the rotation of the two first gears drives the two threaded shafts to rotate simultaneously. The rotation of the two threaded shafts drives the connecting rod to move on the threaded shaft, and the movement of the two connecting rods drives the two movable grooves to move relative to each other. The two movable grooves move to the appropriate position so that the pressing sleeve contacts the battery, which is convenient for pressing the side of the battery to avoid omissions and affect the pressing deformation effect;

[0015] 2. The rotating motor provided in the adjustment component drives the adjustment disk to rotate in the adjustment slot. The rotation of the adjustment disk drives the soft-pack lithium battery to rotate to an appropriate position, so as to facilitate the pressing of the other two sides, adjust the pressing angle and improve the pressing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 It is a side cross-sectional structural schematic diagram of the utility model;

[0019] Figure 4 It is a schematic diagram of the top cross-sectional structure of the utility model.

[0020] In the figure: 1. pressing box; 2. layer plate; 3. pressing assembly; 31. first electric hydraulic cylinder; 32. pressing plate; 33. threaded shaft; 34. connecting rod; 35. first gear; 36. connecting plate; 37. forward and reverse motor; 38. second gear; 39. slide groove; 310. movable groove; 311. movable block; 312. U-shaped plate; 313. rotating shaft; 314. pressing sleeve; 315. bearing; 316. second electric hydraulic cylinder; 4. adjusting assembly; 41. rotating motor; 42. adjusting groove; 43. adjusting disk; 5. box door; 6. switch panel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides a cold and hot pressing device for a soft-pack lithium battery, comprising a pressing box 1, a layer plate 2 is fixedly arranged at the bottom of the inner wall of the pressing box 1, and a pressing component 3 and an adjusting component 4 are arranged at the bottom of the layer plate 2;

[0023] See also Figure 1-4 The pressing assembly 3 includes a first electric hydraulic cylinder 31, which is fixedly arranged at the middle of the top of the pressing box 1. A pressing plate 32 is movably arranged at the top of the inner wall of the pressing box 1. The output end of the first electric hydraulic cylinder 31 is fixedly connected to the middle of the top of the pressing plate 32 to facilitate plane pressing.

[0024] The surfaces of the two threaded shafts 33 are threadedly sleeved with connecting rods 34, and there are four connecting rods 34. The tops of the four connecting rods 34 are slidably inserted into the tops of the layer plates 2. The tops of the layer plates 2 are surrounded by sliding grooves 39 that match the moving paths of the connecting rods 34, so as to facilitate movement to a suitable position.

[0025] One end of the two threaded shafts 33 is fixedly sleeved with a first gear 35, and the bottom of the other side of the pressing box 1 is fixedly provided with a connecting plate 36. The bottom end of the connecting plate 36 is fixedly provided with a forward and reverse motor 37 through a fixing seat. The output shaft of the forward and reverse motor 37 is fixedly provided with a second gear 38. Both the two first gears 35 are meshed and connected with the second gear 38, so as to drive the connecting rod 34 to move.

[0026] The top ends of the four connecting rods 34 on the same side are fixedly connected with a movable groove 310, and two movable grooves 310 are provided. A movable block 311 is slidably provided inside the two movable grooves 310. A second electric hydraulic cylinder 316 is fixedly provided on one side of the two movable grooves 310. The two second electric hydraulic cylinders 316 are respectively fixedly connected to the middle part of one side of the two movable blocks 311. A U-shaped plate 312 is fixedly provided on one side of the two movable blocks 311. A rotating shaft 313 is rotatably provided inside the two U-shaped plates 312 through a bearing 315. A pressing sleeve 314 is fixedly provided in the middle of the two rotating shafts 313 to facilitate pressing the side of the battery.

[0027] One side of the pressing box 1 is hinged with a box door 5, and a switch panel 6 is fixedly provided at a corner of the other side of the pressing box 1. The surface of the switch panel 6 is respectively installed with a first electric hydraulic cylinder switch, a forward and reverse motor switch, and a second electric hydraulic cylinder switch. The first electric hydraulic cylinder 31, the forward and reverse motor 37, and the second electric hydraulic cylinder 316 are respectively electrically connected to an external power supply through the first electric hydraulic cylinder switch, the forward and reverse motor switch, and the second electric hydraulic cylinder switch, so as to facilitate their respective control and use;

[0028] Specifically, the forward and reverse motor 37 is arranged in the pressing assembly 3 to drive the second gear 38 to rotate, and the second gear 38 is meshed with the first gear 35. The rotation of the second gear 38 drives the two first gears 35 to rotate simultaneously, and the rotation of the two first gears 35 drives the two threaded shafts 33 to rotate simultaneously. The rotation of the two threaded shafts 33 drives the connecting rod 34 to move on the threaded shaft 33, and the movement of the two connecting rods 34 drives the two movable grooves 310 to move relative to each other. The two movable grooves 310 move to the appropriate position and the pressing sleeve 314 contacts the battery, so as to facilitate the pressing of the side of the battery and avoid omissions that affect the pressing deformation effect.

[0029] See also Figure 1-4 The adjusting assembly 4 includes a rotating motor 41, which is fixedly arranged at the middle of the bottom end of the layer plate 2, and an adjusting disk 43 is fixedly arranged on the output shaft of the rotating motor 41;

[0030] An adjusting slot 42 cooperating with an adjusting disk 43 is provided in the middle of the top of the layer plate 2. The adjusting disk 43 rotates inside the adjusting slot 42 to facilitate adjusting the pressing angle.

[0031] Specifically, the rotating motor 41 provided in the adjusting component 4 drives the adjusting disk 43 to rotate in the adjusting slot 42. The rotation of the adjusting disk 43 drives the soft-pack lithium battery to rotate to an appropriate position, so as to facilitate pressing of the other two sides, adjust the pressing angle, and improve the pressing efficiency.

[0032] When in use, first place the pressing component 3 in the corresponding working position, then check whether all parts of the adjusting component 4 are working properly. After the inspection is completed, it can be used. Place the soft-pack lithium battery to be pressed in the middle of the top of the layer plate 2 in contact with the top of the adjusting disk 43, and drive the second gear 38 to rotate by setting the forward and reverse motor 37 in the pressing component 3. The second gear 38 is meshed with the first gear 35. The rotation of the second gear 38 drives the two first gears 35 to rotate at the same time. The rotation of the two first gears 35 drives the two threaded shafts 33 to rotate at the same time. The two threaded shafts The rotation of 33 drives the connecting rod 34 to move on the threaded shaft 33, and the movement of the two connecting rods 34 drives the two movable grooves 310 to move relative to each other. The two movable grooves 310 move to the appropriate position and the pressing sleeve 314 contacts the battery to facilitate pressing the side of the battery to avoid omissions and affect the pressing deformation effect. The rotating motor 41 set in the adjustment component 4 drives the adjustment disk 43 to rotate in the adjustment groove 42. The rotation of the adjustment disk 43 drives the soft-pack lithium battery to rotate to the appropriate position, which is convenient for pressing the other two sides, easy to adjust the pressing angle, and improve the pressing efficiency.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cold and hot pressing device for soft-pack lithium batteries, comprising a pressing box (1), It is characterized in that A layer plate (2) is provided at the bottom of the inner wall of the pressing box (1), and a pressing component (3) and an adjusting component (4) are provided at the bottom of the layer plate (2); The pressing assembly (3) comprises a first electric hydraulic cylinder (31), the first electric hydraulic cylinder (31) being arranged at the middle of the top end of the pressing box (1), a pressing plate (32) being movably arranged at the top of the inner wall of the pressing box (1), and an output end of the first electric hydraulic cylinder (31) being connected to the middle of the top end of the pressing plate (32); The adjustment component (4) comprises a rotary motor (41), the rotary motor (41) being arranged in the middle of the bottom end of the layer plate (2), and the output shaft of the rotary motor (41) being provided with an adjustment disk (43).

2. A cold and hot pressing device for soft-pack lithium batteries according to claim 1, Features: Threaded shafts (33) are rotatably provided on both sides of the bottom end of the inner wall of the pressing box (1), one end of the two threaded shafts (33) is rotatably connected to the two sides of one side of the inner wall of the pressing box (1), and one end of the two threaded shafts (33) is rotatably provided on the two sides of the bottom of the other side of the pressing box (1).

3. A cold and hot pressing device for soft-pack lithium batteries according to claim 2, Features: The surfaces of the two threaded shafts (33) are threadedly sleeved with connecting rods (34), the tops of the four connecting rods (34) are slidably inserted into the tops of the layer boards (2), and sliding grooves (39) matching the movable paths of the connecting rods (34) are provided around the tops of the layer boards (2).

4. A cold and hot pressing device for soft-pack lithium batteries according to claim 3, Features: One end of the two threaded shafts (33) is sleeved with a first gear (35), the bottom of the other side of the pressing box (1) is provided with a connecting plate (36), the bottom end of the connecting plate (36) is provided with a forward and reverse motor (37) through a fixing seat, the output shaft of the forward and reverse motor (37) is provided with a second gear (38), and the two first gears (35) are meshingly connected with the second gear (38).

5. A cold and hot pressing device for soft-pack lithium batteries according to claim 3, Features: The top ends of the four connecting rods (34) on the same side are connected to a movable groove (310), and movable blocks (311) are slidably arranged inside the two movable grooves (310). A second electric hydraulic cylinder (316) is arranged on one side of the two movable grooves (310), and the two second electric hydraulic cylinders (316) are respectively connected to the middle part of one side of the two movable blocks (311), and a U-shaped plate (312) is arranged on one side of the two movable blocks (311). A rotating shaft (313) is rotatably arranged inside the two U-shaped plates (312) via a bearing (315), and a pressing sleeve (314) is sleeved on the middle part of the two rotating shafts (313).

6. A cold and hot pressing device for soft-pack lithium batteries according to claim 1, Features: An adjustment groove (42) matching with the adjustment disk (43) is provided in the middle of the top end of the layer plate (2), and the adjustment disk (43) rotates inside the adjustment groove (42).

7. A cold and hot pressing device for soft-pack lithium batteries according to claim 5, Features: One side of the pressing box (1) is hinged with a box door (5), and a switch panel (6) is provided at a corner of the other side of the pressing box (1). A first electric hydraulic cylinder switch, a forward and reverse motor switch, a second electric hydraulic cylinder switch, and a rotary motor switch are respectively installed on the surface of the switch panel (6). The first electric hydraulic cylinder (31), the forward and reverse motor (37), the second electric hydraulic cylinder (316), and the rotary motor (41) are electrically connected to an external power supply via the first electric hydraulic cylinder switch, the forward and reverse motor switch, the second electric hydraulic cylinder switch, and the rotary motor switch.

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