Compressing, heating and static equipment and method for gluing side panels of lithium battery modules

Abstract

The present invention discloses a compression heating and static device for gluing the side panels of lithium battery modules, which includes a double-station hoist and a heating static machine. The double-station hoist includes a hoist frame, two lifting components symmetrically arranged, and a plurality of compression units. The heating static machine includes an electrical cabinet, a frame formed by a plurality of heating static stations, and a plurality of heating units. The two lifting components are respectively connected to the hoist frame, and a compression unit is arranged on each lifting component. The lithium battery module is placed on the compression unit and is compressed by the compression unit. The compression unit and the lithium battery module are moved together into the heating static station, and a heating unit is arranged in each heating static station, and the electrical cabinet is electrically connected to the heating unit. The present invention can accurately control the temperature rise curve, greatly improving the glue curing quality and glue curing efficiency. At the same time, the mechanical mechanism of the present invention is simple and compact, the cost is low, the equipment is stable, and the labor intensity of workers can be effectively reduced.

Description

Technical Field

[0001] The invention relates to lithium battery production equipment, and in particular to a lithium battery module side plate gluing, heating and static equipment and method. Background Art

[0002] With the continuous development of environmental protection technology, new energy vehicles have been favored by more and more people. With the increase in the number of buyers, the use of lithium battery modules is also increasing. In the production process of lithium battery modules, the battery main board and side panels need to be glued and solidified. In order to speed up the glue solidification speed and stably bond the battery module, the module side panels need to be heated to improve the glue curing efficiency.

[0003] At present, the commonly used methods are hot air circulation heating and heating rod contact conduction heating. Hot air circulation heating is to heat the air in the heating furnace cavity, and transport the heated hot air through a closed pipe to the module side panel heating cavity for circulation heating: this heating method has low thermal utilization rate, only a small part of the heat energy acts on the module side panel surface, and most of it is lost by heat conduction in the pipe and cavity, which consumes a lot of energy, and the air temperature control reaction rate is low, and it is impossible to accurately control the temperature. The glue curing quality and glue curing efficiency are both low; the heating rod contact heating directly acts on the surface of the module side panel, and its heating rate is fast, but the heating rod needs to be accurately fitted to the surface of the module side panel, the labor intensity of the workers is high, and the mechanical structure design is complex, the cost is high, and the equipment stability is extremely poor. In addition, the existing lithium battery module does not have a corresponding clamping device to clamp it after glue coating, which reduces the connection reliability between the side panel and the body. Summary of the invention

[0004] The problem to be solved by the present invention is to provide a pressing, heating and static device for gluing the side panels of lithium battery modules, which can accurately control the temperature rise curve and greatly improve the quality and efficiency of glue curing. At the same time, the mechanical structure of the present invention is simple and compact, the cost is low, the equipment is stable, and the labor intensity of workers can be effectively reduced. In addition, the present invention ensures a reliable connection between the battery side panel and the lithium battery body. The present invention also provides a pressing, heating and static method for gluing the side panels of lithium battery modules

[0005] The present invention discloses a pressing, heating and standing device for gluing the side panels of lithium battery modules, which comprises a double-station hoist and a heating and standing machine. The double-station hoist comprises a hoist frame, two lifting components symmetrically arranged on the left and right, and a plurality of pressing units. The heating and standing machine comprises an electrical cabinet, a frame formed by a plurality of heating and standing stations, and a plurality of heating units. The two lifting components are respectively connected to the hoist frame, each of which is provided with a pressing unit. The lithium battery module is placed on the pressing unit and is pressed by the pressing unit. The pressing unit and the lithium battery module are moved together to the heating and standing station. Each heating and standing station is provided with a heating unit, and the electrical cabinet is electrically connected to the heating unit.

[0006] Furthermore, each lifting assembly includes a motor, a screw transmission pair, a bracket, and a driving roller wheel line body. The screw transmission pair includes a screw and a nut. The motor is fixedly connected to the upper mounting plate of the lifting machine frame. One end of the screw is connected to the motor and the other end is connected to the lower mounting plate of the lifting machine frame. The nut is connected to the bracket. The clamping unit is arranged on the bracket, and the driving roller wheel line body is arranged between the clamping unit and the bracket.

[0007] Furthermore, the clamping unit includes a tooling plate, two left and right pressure plates, and multiple left and right side pressure elbow clamps. The lithium battery module is placed on the tooling plate, and the two pressure plates are pressed on the left and right sides of the lithium battery module. Multiple side pressure elbow clamps are arranged on the outer side of each pressure plate, and the side pressure elbow clamps are evenly distributed along the front and rear directions of the pressure plate.

[0008] Furthermore, each lifting assembly also includes a guide unit, which includes two front and rear linear guide pairs, which are symmetrically arranged relative to the screw transmission pair. Each linear guide pair includes a guide rail and a slider. The guide rail is fixed on the lifting machine frame, and the slider is fixed on the inner side of the bracket.

[0009] Furthermore, the heating unit is located on the outside of the clamping unit, and each heating unit includes a storage roller line body, two left and right infrared lamp tubes, and multiple infrared thermometers. The two infrared lamp tubes are respectively located on the outside of the left and right elbow clamps, and the multiple infrared thermometers are located on the outside of the infrared lamp tubes. The tooling plate is located above the storage roller line body, and the storage roller line body is arranged on the bottom plate of the heating static station.

[0010] The method for pressing, heating and standing glue coating on the side panels of a lithium battery module of the present invention includes: first, placing a pressing unit on a bracket at the lowest position; when the lithium battery body reaches the side of the bracket through a conveyor line, placing the lithium battery body on a tooling plate; gluing the battery side panels to the left and right sides of the lithium battery body to form a lithium battery module; and then pressing the two sides of the lithium battery module by a pressing plate and a side pressure elbow clamp; second, the double-station hoist operates to raise the lithium battery module to a suitable position through the bracket; at this time, the lithium battery module is transported to the heating and standing station together with the pressing unit through the joint action of a driving roller line body and a storage roller line body; third, the heating unit operates to heat the glue between the lithium battery body and the battery side panels; and fourth, when the heating reaches a set time, i.e., the glue is solidified, the lithium battery module is shipped out of the warehouse.

[0011] Furthermore, the specific steps of the heating unit in step three are: first, the glue between the lithium battery body and the battery side plate is heated by an infrared lamp tube, and then the temperature is detected in real time by an infrared thermometer and the data is transmitted to the PID temperature control module, and then the heating power of the infrared lamp tube is controlled to achieve constant temperature (set temperature) control.

[0012] The advantages of the present invention are: 1. Fixed infrared lamps are arranged on both sides of the lithium battery module, and the infrared lamps directly irradiate the surface of the side panels, and the temperature field is transmitted to the inner side of the module that is bonded to the cured glue through the side panels; at the same time, an infrared temperature detector is arranged to detect the temperature rise, and the heating power of the infrared lamps is accurately controlled through the PID temperature control module to achieve closed-loop control, which greatly improves the glue curing quality and glue curing efficiency; 2. The mechanical structure of the present invention is simple and compact, the cost is low, the equipment is stable, and the labor intensity of workers can be effectively reduced; 3. The clamping unit realizes reliable clamping of the module, ensuring a reliable connection between the battery side panel and the lithium battery body.

[0013] In summary, the present invention fully considers the heating environment factors and production capacity requirements of the glue curing of the side panels of the lithium battery module, and adopts a non-contact heating method of infrared lamp heating. The infrared lamp directly irradiates the surface of the side panel and accurately controls the temperature rise curve, thereby improving the glue curing quality and glue curing efficiency of the side panel of the lithium battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the compression, heating and static placement device of the present invention.

[0015] Figure 2 It is a front view of the compacting, heating and standing device of the present invention.

[0016] Figure 3 This is a three-dimensional diagram of a double-station hoist.

[0017] Figure 4 This is the main view of the double-station hoist.

[0018] Figure 5 A three-dimensional diagram of the clamping unit.

[0019] Figure 6 A schematic diagram of the compression unit. DETAILED DESCRIPTION

[0020] Example 1

[0021] from Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6It can be known that the pressing, heating and standing device for gluing the side panels of lithium battery modules of the present invention comprises a double-station hoist 1 and a heating and standing machine 2. The double-station hoist 1 comprises a hoist frame 11, two lifting components 12 symmetrically arranged on the left and right, and a plurality of pressing units 13. The heating and standing machine 2 comprises an electrical cabinet 21, a frame formed by a plurality of heating and standing stations 22, and a plurality of heating units 23. The two lifting components 12 are respectively connected to the hoist frame 11, and each lifting component 12 is provided with a pressing unit 13. The lithium battery module 3 is placed on the pressing unit 13 and is pressed by it. The pressing unit 13 and the lithium battery module 3 are moved together to the heating and standing station 22. Each heating and standing station 22 is provided with a heating unit 23, and the electrical cabinet 21 is electrically connected to the heating unit 23.

[0022] After the lithium battery module 3 is placed on and compressed by the pressing unit 13, as the lifting assembly 12 moves to a suitable height, the lithium battery module 3 and the pressing unit 13 are transported together to the heating and resting station 22 of the heating and resting machine 2, and the heating and resting of the lithium battery module 3 are achieved by the left and right heating units 23.

[0023] Example 2

[0024] from Figure 1 , Figure 2 , Figure 3 , Figure 4 It can be known that the compacting, heating and static equipment of the present invention: each lifting component 12 includes a motor 121, a screw transmission pair, a bracket 122, and a driving roller line body 123, the screw transmission pair includes a screw 124 and a nut 125, the motor 121 is fixedly connected to the upper mounting plate of the lifting machine frame 11, one end of the screw 124 is connected to the motor 121, and the other end is connected to the lower mounting plate of the lifting machine frame 11, the nut 125 is connected to the bracket 122, the compacting unit is arranged on the bracket 122, and the driving roller line body 123 is arranged between the compacting unit and the bracket 122.

[0025] When the lithium battery module 3 is transported from the conveyor line, it is moved to the clamping unit through the combined action of the conveyor line and the driving roller line 123. After the clamping unit clamps the lithium battery module 3, the motor 121 drives the screw rod 124 to rotate, and the nut 125 drives the bracket 122 to move up and down. When the bracket 122 moves to a suitable height, the driving roller line 123 works to transport the clamping unit together with the lithium battery module 3 to the heating and static station 22.

[0026] Example 3

[0027] from Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5It can be known that the pressing, heating and static equipment of the present invention: the pressing unit 13 includes a tooling plate 131, two left and right pressing plates 132, and multiple left and right side pressing elbow clamps 133, the lithium battery module 3 is placed on the tooling plate 131, and the two pressing plates 132 are pressed on the left and right sides of the lithium battery module 3, and multiple side pressing elbow clamps 133 are arranged on the outer side of each pressing plate 132, and the side pressing elbow clamps 133 are evenly distributed along the front and rear directions of the pressing plate 132.

[0028] The left and right sides of the lithium battery body are connected to the battery side panels by glue to form a lithium battery module 3. When the lithium battery module 3 is placed on the tooling plate 131, the battery side panels on both sides are first pressed against the lithium battery body by the left and right pressure plates 132, and then the left and right pressure plates 132 are pressed against each other by the side pressure elbow clamps 133 on both sides to thereby press the lithium battery module 3.

[0029] Example 4

[0030] from Figure 1 , Figure 2 , Figure 3 , Figure 4 It can be known that the compacting, heating and static equipment of the present invention: each lifting component 12 also includes a guide unit, the guide unit includes two front and rear linear guide pairs, which are symmetrically arranged relative to the screw transmission pair, and each linear guide pair includes a guide rail 126 and a slider 127, the guide rail 126 is fixed on the lifting machine frame 11, and the slider 127 is fixed on the inner side of the bracket 122.

[0031] When the nut 125 drives the bracket 122 to move up and down along the screw rod 124 , the slider 127 also moves up and down along the guide rail 126 at the same time; the guide unit not only plays a guiding role, but also ensures the stability of the up and down movement of the bracket 122 .

[0032] Example 5

[0033] from Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 It can be known that the compacting, heating and static equipment of the present invention: the heating unit 23 is located on the outside of the compacting unit 13, each heating unit 23 includes a storage position roller line body 233, two left and right infrared lamp tubes 231, and multiple infrared thermometers 232, the two infrared lamp tubes 231 are respectively located on the outside of the left and right side pressure elbow clamps 133, and the multiple infrared thermometers 232 are located on the outside of the infrared lamp tubes 231, the tooling plate 131 is located above the storage position roller line body 233, and the storage position roller line body 233 is arranged on the bottom plate of the heating and static station 22.

[0034] After the lithium battery module 3 is pressed by the pressing unit 13, as the lifting assembly 12 moves to a suitable height, under the joint action of the driving roller line 123 and the storage roller line 233, the lithium battery module 3 and the pressing unit 12 are transported to the heating and static station 22. At this time, the glue between the lithium battery body and the battery side plate is heated by the infrared lamp 231, and the infrared thermometer 232 detects the temperature in real time and transmits the data to the PID temperature control module, thereby achieving constant temperature control by controlling the heating power of the infrared lamp 231.

[0035] Example 6

[0036] The method for pressing, heating and standing glue coating on the side panels of a lithium battery module of the present invention is as follows: 1. First, a pressing unit 13 is placed on the bracket 122 at the lowest position. When the lithium battery body reaches the side of the bracket 122 through the conveyor line, the lithium battery body is placed on the tooling plate 131, and the battery side panels are glued to the left and right sides of the lithium battery body by glue to form a lithium battery module 3, and then the two sides of the lithium battery module 3 are pressed by the pressing plate 132 and the side pressure elbow clamp 133; 2. The double-station hoist 1 works to raise the lithium battery module 3 to a suitable position through the bracket 122. At this time, the lithium battery module 3 is transported to the heating and standing station 22 together with the pressing unit 13 through the joint action of the driving roller line body 123 and the storage roller line body 233; 3. The heating unit 23 works to heat the glue between the lithium battery body and the battery side panel; 4. When the heating reaches the set time, that is, the glue is solidified, the lithium battery module 3 is taken out of the warehouse. The two lifting assemblies 12 of the lifting machine 1 which are symmetrically arranged on the left and right sides can work simultaneously.

[0037] Among them, the specific steps of the heating unit are: first, the glue between the lithium battery body and the battery side plate is heated by the infrared lamp tube 231, and then the temperature is detected in real time by the infrared thermometer 232 and the data is transmitted to the PID temperature control module, and then the heating power of the infrared lamp tube 231 is controlled to achieve constant temperature (set temperature) control.

[0038] The advantages of the present invention are: 1. By configuring fixed infrared lamps 231 on both sides of the lithium battery module 3, the infrared lamps 231 directly irradiate the surface of the side panels, and the temperature field is transmitted to the inner curing glue that is bonded to the module through the side panels; 2. An infrared temperature detector is configured to detect the temperature rise, and the PID temperature control module is used to accurately control the heating power of the infrared lamp to achieve closed-loop control. The mechanical structure is simple and compact, and the heating and curing efficiency is greatly improved; 3. The clamping unit realizes reliable clamping of the module, ensuring a reliable connection between the battery side panel and the lithium battery body.

[0039] The present invention fully considers the heating environment factors and production capacity requirements of the side panel glue curing of the lithium battery module, adopts a non-contact heating method of infrared lamp heating, and the infrared lamp directly irradiates the side panel surface and accurately controls the temperature rise curve, which greatly improves the glue curing quality and glue curing efficiency. At the same time, the present invention has a simple structure, low cost, stable equipment, and can effectively reduce the labor intensity of workers and improve the quality and efficiency of the side panel glue curing of lithium batteries.

Claims

1. The pressing, heating and static equipment for gluing the side panels of lithium battery modules is characterized by: It comprises a double-station hoist (1) and a heating and static machine (2). The double-station hoist (1) comprises a hoist frame (11), two hoisting assemblies (12) arranged symmetrically on the left and right, and a plurality of pressing units (13). The heating and static machine (2) comprises an electrical cabinet (21), a frame formed by a plurality of heating and static stations (22), and a plurality of heating units (23). The two hoisting assemblies (12) are respectively connected to the hoist frame (11). Each hoisting assembly (12) is provided with a pressing unit (13). The lithium battery module (3) is placed on the pressing unit (13) and is pressed by the pressing unit. The pressing unit (13) and the lithium battery module (3) are moved together into the heating and static station (22). A heating unit (23) is provided in each heating station (22), and the electrical cabinet (21) is electrically connected to the heating unit (23); the heating unit (23) is located outside the pressing unit (13); each heating unit (23) comprises a storage roller line body (233), two left and right infrared lamp tubes (231), and a plurality of infrared thermometers (232); the two infrared lamp tubes (231) are respectively located outside the left and right elbow clamps (133); the plurality of infrared thermometers (232) are located outside the infrared lamp tubes (231); the tooling plate (131) is located above the storage roller line body (233); and the storage roller line body (233) is arranged on the bottom plate of the heating station (22). The clamping unit (13) comprises a tooling plate (131), two left and right pressure plates (132), and a plurality of left and right side pressure elbow clamps (133). The lithium battery module (3) is placed on the tooling plate (131). The two pressure plates (132) are pressed on the left and right sides of the lithium battery module (3). A plurality of side pressure elbow clamps (133) are arranged on the outer side of each pressure plate (132). The side pressure elbow clamps (133) are evenly distributed along the front and rear directions of the pressure plate (132). Each lifting assembly (12) comprises a motor (121), a screw transmission pair, a bracket (122), and a driving roller wheel line body (123). The screw transmission pair comprises a screw (124) and a nut (125). The motor (121) and the lifting machine frame (121) are connected to each other. 1), one end of the lead screw (124) is connected to the motor (121) and the other end is connected to the lower mounting plate of the elevator frame (11), the nut (125) is connected to the bracket (122), the clamping unit is arranged on the bracket (122), and the driving roller line body (123) is arranged between the clamping unit and the bracket (122); each lifting assembly (12) also includes a guide unit, the guide unit includes two front and rear linear guide pairs, which are symmetrically arranged relative to the lead screw transmission pair, each linear guide pair includes a guide rail (126) and a slider (127), the guide rail (126) is fixed on the elevator frame (11), and the slider (127) is fixed on the inner side of the bracket (122).

2. According to claim 1, the pressing, heating and standing device for gluing the side panels of the lithium battery module, the pressing, heating and standing method thereof is as follows:

1. First, a pressing unit is placed on the bracket at the lowest position. When the lithium battery body reaches the side of the bracket through the conveyor line, the lithium battery body is placed on the tooling plate, and the battery side panels are glued to the left and right sides of the lithium battery body by glue to form a lithium battery module, and then the two sides of the lithium battery module are pressed by the pressing plate and the side pressure elbow clamp; 2. The double-station hoist works to raise the lithium battery module to a suitable position through the bracket, and at this time, the lithium battery module is transported to the heating and standing station together with the pressing unit through the joint action of the driving roller line body and the storage roller line body; 3. The heating unit works to heat the glue between the lithium battery body and the battery side panel; 4. When the heating reaches the set time, that is, the glue is solidified, the lithium battery module is shipped out of the warehouse.

3. The pressing, heating and static placing device according to claim 2 is characterized in that: The specific steps of the heating unit in step three are: first, heat the glue between the lithium battery body and the battery side plate through the infrared lamp tube, then use the infrared thermometer to detect the temperature in real time and transmit the data to the PID temperature control module, and then achieve constant temperature control by controlling the heating power of the infrared lamp tube.

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