A baking device for battery assembly

Abstract

The present application relates to the technical field of heating equipment, and discloses a baking equipment for battery assembly, including a box shell, wherein a lifting conveying device and a bonding heating device located on both sides of the lifting conveying device are provided inside the box shell, and the two bonding heating devices are driven by two heating driving devices to move toward or away from each other, and a limit support device is also provided inside the box shell to keep the bonding heating device in a horizontal state at all times, and the bonding heating device includes a frame plate, and a plurality of heating plates are provided on the top of the frame plate, and a resistance wire for heating is provided inside the heating plate. When the battery box body is baked and heated, the battery box body is supported by the heating plates on both sides of the bottom thereof, and is moved to be in full contact with the bottom surface of the battery box body, and the resistance wire is controlled to be energized, and the bottom surface of the battery box body is baked, so that the bottom surface of the battery box body can be heated comprehensively and evenly, thereby improving the efficiency and quality of baking and heating.

Description

Technical Field

[0001] The present application relates to the technical field of heating equipment, and in particular to a baking device for battery assembly. Background Art

[0002] During the production process of liquid-cooled energy storage battery packs, it is necessary to apply thermal conductive structural adhesive to the bottom of the battery box to ensure the strength of the module and to play a role in heat conduction. In the traditional process, after applying thermal conductive structural adhesive to the bottom of the box, the battery module is placed in the box. After assembling other components, it is placed in the warehouse storage area to allow it to cure naturally. For conventional two-component adhesive, the initial curing time at room temperature is more than one hour, and the complete curing time is more than seven days. The long time seriously affects production efficiency, and there is a situation where the glue and the battery have poor contact during transportation, affecting product performance.

[0003] When the size of the battery box is large, the battery box production line is generally transported by transmission rollers. When using existing drying and heating equipment, it is generally heated by gas, and the load-bearing part of the battery box cannot be exposed to the heated gas for the first time, resulting in slower heating of this part, making the thermal conductive structural adhesive cure unevenly, and also affecting the curing efficiency and curing quality of the thermal conductive structural adhesive. In addition, the gas used for heating directly contacts the battery module, posing a potential safety hazard to the battery cells of the battery module. Summary of the invention

[0004] The present application proposes a baking device for battery assembly, which has the advantages of high curing efficiency and high quality of thermally conductive structural adhesive and high safety of battery modules. It is used to solve the problem that when using existing drying and heating equipment to dry and heat the thermally conductive structural adhesive in the battery box, it is limited by the size and overall mass of the battery box, and needs to be transported by conveyor rollers. The commonly used gas heating method has the problem of low curing efficiency and poor curing quality of the thermally conductive structural adhesive because the load-bearing parts of the battery box are heated slower than the exposed parts, and there are also safety hazards to the battery cells of the battery module.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: a baking device for battery assembly, comprising a box shell and a battery box to be baked, the interior of the box shell is provided with a lifting and conveying device for conveying the battery box, the box shell is provided with a laminating heating device located on both sides of the lifting and conveying device, and the two laminating heating devices are driven by two heating driving devices to move toward or away from each other, and the box shell is also provided with a limiting support device to keep the laminating heating device in a horizontal state at all times.

[0006] The fitted heating device comprises a frame plate, a plurality of heating plates are arranged on the top of the frame plate, and resistance wires for heating are arranged inside the heating plates.

[0007] When baking the battery case, after the lifting conveyor device completely transfers the battery case into the case shell, the battery case is supported by the heating plates on both sides of its bottom, and the load hydraulic cylinder controls the lifting conveyor device to separate from the battery case. Then, two heating drive devices respectively drive the two bonding heating devices to move toward each other until they are in contact, and then the resistance wire is controlled to be energized. The frame plates on the two bonding heating devices are used to bake the bottom surface of the battery case until the thermal conductive structural adhesive in the battery case is cured. Then, the two heating drive devices respectively drive the two bonding heating devices away from the initial position, and the load hydraulic cylinder controls the lifting conveyor device to contact the battery case again, and the lifting conveyor device transfers the baked battery case out.

[0008] Furthermore, both sides of the frame plate are provided with wire grooves located at one end of the heating plate, and the wires at both ends of the resistance wire in the heating plate extend out through the wire grooves, which is convenient for the installation of the frame plate and the wiring of the resistance wire. A cover plate covering the wire groove is fixedly installed on the top of the frame plate, and the top surface of the cover plate does not exceed the top surface of the heating plate, ensuring that the frame plate can be in full contact with the bottom surface of the battery box when the battery box is baked.

[0009] Furthermore, the limit support device in the box shell is set into two groups, and the two groups of limit support devices are respectively arranged on both sides of the lifting conveying device; one group of limit support devices is set to two, and the two limit support devices in the same group are respectively arranged at both ends of the bonding heating device; the limit support device includes two horizontally placed U-shaped plates, and the U-shaped plate is composed of an upper arm, a connecting part and a lower arm; one side of the connecting part of the U-shaped plate is fixedly connected to the inner wall of the box shell, and the opening of the U-shaped plate faces one side of the lifting conveying device; a number of equidistantly arranged limit rollers are arranged between the upper arms of the two U-shaped plates, and a number of equidistantly arranged support rollers are arranged between the lower arms of the two U-shaped plates, and the number of the limit rollers and the support rollers is not less than two; two support plates II are fixedly installed between the bottoms of the lower arms of the two U-shaped plates, and support columns are fixedly installed at both ends of the support plate II, and the bonding heating device is arranged between the limit rollers and the support rollers.

[0010] Furthermore, the top of the heating plate is movably connected to the outer side of the limiting roller, and the bottom of the heating plate is movably connected to the outer side of the supporting roller. The supporting roller supports the frame plate, and the limiting roller limits the frame plate and the heating plate at the same time, so that the frame plate and the heating plate can still maintain a horizontal state when they move horizontally while loading the battery box, and the setting of the limiting roller and the supporting roller reduces the friction resistance of the laminating heating device during horizontal movement.

[0011] Furthermore, the lifting conveying device includes two cross beams, a plurality of conveying rollers are arranged between the two cross beams, and the plurality of conveying rollers are equidistantly arranged between the two cross beams, and a support plate I is fixedly installed at the bottom between the two conveying rollers, and the number of the support plates I is at least two, and the two support plates I are respectively arranged at the two ends of the cross beam, and load hydraulic cylinders are respectively arranged at the two ends of the bottom of each support plate I, and the piston shaft is driven to move by the load hydraulic cylinder to control the longitudinal movement of the support plate I, thereby adjusting the height of the conveying roller, so that the height of the lifting conveying device is adjustable, and a sprocket cover is fixedly installed on the outer side of one of the cross beams, and the shaft body at one end of the conveying roller extends into the sprocket cover, and the plurality of conveying rollers between the two lifting conveying devices are connected by a chain transmission through a sprocket arranged in the sprocket cover, so that the plurality of conveying rollers between the two cross beams can rotate synchronously, thereby achieving the effect of conveying the battery box, and the rotation of the conveying rollers is driven by a motor.

[0012] Furthermore, the heating drive device includes two support plates III, which are arranged adjacent to each other, and driving hydraulic cylinders are respectively fixedly installed on the two support plates III, and the piston shafts in the two driving hydraulic cylinders are arranged in opposite directions, and the piston shafts of the two driving hydraulic cylinders are respectively connected to the two bonding heating devices, and support legs are fixedly installed on both sides of the bottom of the support plate III.

[0013] Furthermore, two L-shaped fixing plates are fixedly installed on the outer side of the frame plate, and the two L-shaped fixing plates are located between the two groups of limit support devices. Slide grooves are opened on the opposite sides of the two L-shaped fixing plates, and a limit shaft movably sleeved on the slide groove is provided between the two L-shaped fixing plates. The limit shaft is movably sleeved with a linkage sleeve located between the two L-shaped fixing plates, and one end of the piston shaft of the two driving hydraulic cylinders is respectively fixedly connected to the linkage sleeves provided on the two bonding type heating devices. The piston shaft is driven by the driving hydraulic cylinder to move, thereby pulling the linkage sleeve to drive the limit shaft, the two L-shaped fixing plates and the bonding type heating device to move, so that the two driving hydraulic cylinders can respectively pull the bonding type heating devices on both sides of the lifting conveying device to move toward or away from each other.

[0014] Furthermore, the interior of the box shell is provided with a hardness detection device located above the channel, the hardness detection device includes a positioning mounting plate fixedly mounted on the inner wall of the box shell, at least one detection hydraulic cylinder is fixedly mounted on the positioning mounting plate, the piston shaft of the detection hydraulic cylinder extends to the bottom of the positioning mounting plate and is fixedly mounted with a hardness detection module probe, after the thermal conductive structural adhesive is cured by baking and heating, the detection hydraulic cylinder is started to drive the piston shaft to push the hardness detection module probe downward, the hardness detection module probe is used to contact the thermal conductive structural adhesive, the hardness of the thermal conductive structural adhesive after curing is measured, and the hardness of the thermal conductive structural adhesive after curing is determined to be qualified.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The present application provides a baking device for battery assembly, which comprises horizontally movable laminating heating devices respectively arranged on both sides of a lifting conveying device, and a frame plate arranged on the laminating heating devices. When the battery case is baked and heated, the battery case is supported by the heating plates on both sides of the bottom thereof, and after the lifting conveying device is controlled to separate from the battery case, two heating driving devices respectively drive the two laminating heating devices to move toward each other until they are in contact, so that the frame plate is in full contact with the bottom surface of the battery case, and the resistance wire is controlled to be energized to bake the bottom surface of the battery case, so that the bottom surface of the battery case can be fully and evenly heated, thereby improving the efficiency of baking and heating, and thereby increasing the curing speed of the thermally conductive structural adhesive.

[0017] 2. The present application provides a baking device for battery assembly, which bakes and heats the thermally conductive structural adhesive by directly and completely adhering to the bottom of the battery case through a frame plate, so that the thermally conductive structural adhesive is baked and heated evenly. Compared with the existing baking equipment, it avoids the problem of slow heating of the supported parts of the bottom of the battery case, thereby improving the curing quality of the thermally conductive structural adhesive, and has less impact on the battery module on the battery case during heating, thereby ensuring the rapid curing of the thermally conductive structural adhesive and protecting the safety of the battery module and cell.

[0018] 3. The present application provides a baking device for battery assembly, which can achieve a rapid heating effect by adjusting the power of the resistance wire to suit the characteristics of battery boxes of different sizes and thermally conductive structural adhesives. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work:

[0020] Figure 1 A schematic diagram of the internal structure of a box shell of a baking device for battery assembly of the present invention;

[0021] Figure 2 for Figure 1 Right view of;

[0022] Figure 3 for Figure 1 A schematic diagram of the structure of the lifting conveyor device;

[0023] Figure 4 for Figure 1 A schematic diagram of the structure of two sets of limit support devices and a fitting heating device;

[0024] Figure 5 for Figure 4A schematic diagram of the structure of one of the position limiting support devices;

[0025] Figure 6 for Figure 4 A schematic diagram of the structure of one of the fitted heating devices;

[0026] Figure 7 for Figure 6 A local enlarged structural schematic diagram;

[0027] Figure 8 for Figure 6 A schematic diagram of the structure of two L-shaped fixing plates;

[0028] Fig. 9 for Figure 3 A schematic diagram of the structure of two heating drive devices;

[0029] Fig.10 for Figure 1 A structural schematic diagram of a hardness testing device;

[0030] Fig.11 It is a schematic diagram of the state of the battery box during drying and heating in the present invention.

[0031] In the figure: 1. box shell; 2. lifting conveying device; 201. crossbeam; 202. conveying roller; 203. support plate I; 204. load hydraulic cylinder; 205. sprocket cover; 3. battery box; 301. thermal conductive structural adhesive; 302. battery module; 4. limit support device; 401. U-shaped plate; 402. limit roller; 403. support roller; 404. support plate II; 405. support column; 5. laminating heating device; 501. frame plate; 502. heating plate; 503. wire trough; 504. cover plate; 6. L-shaped fixing plate; 601. slide groove; 7. limit shaft; 8. linkage sleeve; 9. driving device for heating; 901. support plate III; 902. driving hydraulic cylinder; 903. supporting leg; 10. hardness detection device; 101. positioning mounting plate; 102. detection hydraulic cylinder; 103. hardness detection module probe. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 3A baking device for battery assembly includes a box shell 1, a lifting conveyor 2 is arranged in the middle of the inner cavity of the box shell 1, a battery box 3 is placed on the lifting conveyor 2, and channels for the battery box 3 to pass through are arranged in the middle of both sides of the box shell 1, so that the battery box 3 can be transported and transferred by the lifting conveyor 2, the lifting conveyor 2 includes two beams 201, a plurality of conveying rollers 202 are arranged between the two beams 201, the number of conveying rollers 202 is not less than two, and the plurality of conveying rollers 202 are equidistantly arranged between the two beams 201, a support plate I 203 is fixedly installed at the bottom between the two conveying rollers 202, the number of the support plates I 203 is at least two, and the two support plates I 203 are arranged on the beams 201 At both ends, load hydraulic cylinders 204 are respectively provided at both ends of the bottom of each support plate I 203. The load hydraulic cylinders 204 drive the piston shaft to move, control the longitudinal movement of the support plate I 203, thereby adjusting the height of the conveying roller 202, so that the height of the lifting conveying device 2 can be adjusted. A sprocket cover 205 is fixedly installed on the outer side of one of the beams 201, and the shaft body at one end of the conveying roller 202 extends into the sprocket cover 205. Several conveying rollers 202 between the two lifting conveying devices 2 are connected by chain transmission through a sprocket set in the sprocket cover 205, so that the several conveying rollers 202 between the two beams 201 can rotate synchronously, thereby achieving the effect of conveying the battery box 3, and the rotation of the conveying roller 202 is driven by a motor (not shown in the figure).

[0034] Please refer to Figure 1 , Figure 4 and Figure 5 Two groups of limit support devices 4 are arranged inside the box shell 1, and the two groups of limit support devices 4 are respectively arranged on both sides of the lifting conveying device 2. One group of limit support devices 4 is provided with two, and the two limit support devices 4 in the same group are respectively arranged at both ends of the fitting heating device 5. The limit support device 4 includes two horizontally placed U-shaped plates 401, that is, the U-shaped plate 401 is composed of an upper arm, a connecting portion and a lower arm. One side of the connecting portion of the U-shaped plate 401 is fixedly connected to the inner wall of the box shell 1, and the opening of the U-shaped plate 401 faces one side of the lifting conveying device 2, and the length of the lower arm of the U-shaped plate 401 is The length of the two U-shaped plates 401 is greater than the length of its upper arm, a number of equally spaced limiting rollers 402 are provided between the upper arms of the two U-shaped plates 401, a number of equally spaced supporting rollers 403 are provided between the lower arms of the two U-shaped plates 401, and the number of the limiting rollers 402 and the supporting rollers 403 are not less than two, and two supporting plates II 404 are fixedly installed between the bottoms of the lower arms of the two U-shaped plates 401, and support columns 405 are fixedly installed at both ends of the support plate II 404, respectively, and the limiting rollers 402 and the supporting rollers 403 between the two U-shaped plates 401 are stably supported by the support columns 405.

[0035] See also Figure 4 , Figure 6 and Figure 7 A laminating heating device 5 is movably arranged between the limiting roller 402 and the supporting roller 403. The laminating heating device 5 comprises a frame plate 501. A plurality of heating plates 502 are fixedly installed on the top of the frame plate 501. The top of the heating plate 502 is movably connected to the outer side of the limiting roller 402. The bottom of the heating plate 502 is movably connected to the outer side of the supporting roller 403, so that the frame plate 501 and the heating plate 502 can move between the limiting roller 402 and the supporting roller 403 as a whole, and the limiting roller 402 The setting of the supporting roller 403 reduces the friction resistance of the laminating heating device 5 as a whole when it moves. A resistance wire for heating is arranged inside the heating plate 502. Both sides of the frame plate 501 are provided with a wire groove 503 located at one end of the heating plate 502. The wires at both ends of the resistance wire in the heating plate 502 extend out through the wire groove 503. A cover plate 504 covering the wire groove 503 is fixedly installed on the top of the frame plate 501, and the top surface of the cover plate 504 does not exceed the top surface of the heating plate 502.

[0036] Two L-shaped fixing plates 6 are fixedly installed on the outer side of the frame plate 501. The two L-shaped fixing plates 6 are located between the two sets of limit support devices 4, and the two L-shaped fixing plates 6 are close to the middle of the side of the frame plate 501. Figure 4 , Figure 6 and Figure 8 , the two L-shaped fixing plates 6 are provided with a slide groove 601 on the opposite sides, a limit shaft 7 movably sleeved on the slide groove 601 is provided between the two L-shaped fixing plates 6, and a linkage sleeve 8 movably sleeved on the limit shaft 7 is located between the two L-shaped fixing plates 6, see Figure 2 , Figure 3 , Figure 8 and Fig. 9 A heating drive device 9 is provided in the box shell 1 and is located below the crossbeam 201. The heating drive device 9 includes two support plates III 901, and the two support plates III 901 are adjacently arranged. Driving hydraulic cylinders 902 are fixedly installed on the two support plates III 901, respectively, and the piston shafts in the two driving hydraulic cylinders 902 are arranged in opposite directions. One end of the piston shafts of the two driving hydraulic cylinders 902 are respectively fixedly connected to the linkage sleeves 8 provided on the two bonding type heating devices 5. Support legs 903 are fixedly installed on both sides of the bottom of the support plate III 901. The piston shaft is driven to move by the driving hydraulic cylinder 902, thereby pulling the linkage sleeve 8 to drive the limiting shaft 7, the two L-shaped fixing plates 6 and the bonding type heating device 5 to move, so that the two driving hydraulic cylinders 902 can respectively pull the bonding type heating devices 5 on both sides of the lifting conveying device 2 to move toward or away from each other.

[0037] Please continue reading Figure 1 and Fig.10A hardness detection device 10 is provided inside the box shell 1 and is located above the channel. The hardness detection device 10 includes a positioning mounting plate 101 fixedly mounted on the inner wall of the box shell 1. At least one detection hydraulic cylinder 102 is fixedly mounted on the positioning mounting plate 101. The piston shaft of the detection hydraulic cylinder 102 extends to the bottom of the positioning mounting plate 101 and is fixedly mounted with a hardness detection module probe 103.

[0038] like Fig.11 As shown, the battery case 3 includes a battery case 3 , a thermal conductive structural adhesive 301 is arranged in the battery case 3 , and a battery module 302 is arranged on the thermal conductive structural adhesive 301 .

[0039] When in use, the bottom of the battery box 3 is glued by the automatic glue dispenser and the battery module 302 is installed. Then, it is transmitted to the side channel of the box shell 1 by the transmission equipment, and the battery box 3 is transferred to the inside of the box shell 1 by controlling the transmission of the conveying roller 202 on the lifting conveying device 2. Then, the piston shaft is controlled to move downward by the load hydraulic cylinder 204, thereby controlling the battery box 3 on the lifting conveying device 2 to move downward until the two sides of the bottom of the battery box 3 fall on the fitting heating device 5 respectively, and the load hydraulic cylinder 204 controls the piston shaft to drive The conveying roller 202 continues to move downward, and the two laminated heating devices 5 are supported on both sides of the battery box 3. At the same time, the limiting roller 402 on the limiting support device 4 limits the laminated heating device 5 above the laminated heating device 5 to ensure that the laminated heating device 5 maintains a horizontal state after supporting the battery box 3. Then, the driving hydraulic cylinder 902 in the heating driving device 9 is started to drive the piston shaft to pull the laminated heating device 5 to move, so that the two laminated heating devices 5 move toward each other until the two laminated heating devices 5 are in contact, as shown in FIG. Fig.11 As shown, the frame plate 501 and the battery box 3 are connected, and the load hydraulic cylinder 204 is started to drive the conveying roller 202 to move upward, so that the conveying roller 202 contacts the bottom of the bonding heating device 5 for bearing, and finally the resistance wire in the frame plate 501 is energized, and the frame plate 501 is used to heat the bottom surface of the battery box 3, so that the thermal conductive structural adhesive 301 on the bottom surface of the battery box 3 is quickly heated and cured. After the thermal conductive structural adhesive 301 is cured, the detection hydraulic cylinder 102 is started to drive the piston shaft to push the hardness detection module probe 103 downward, and the hardness detection module probe The needle 103 contacts the thermal conductive structural adhesive 301, measures the hardness of the thermal conductive structural adhesive 301 after curing, and determines whether the hardness of the thermal conductive structural adhesive 301 after curing is qualified. Finally, the load hydraulic cylinder 204 is controlled to drive the piston shaft to drive the conveying roller 202 to move downward and separate from the frame plate 501, and the driving hydraulic cylinder 902 is controlled to drive the piston shaft to push the two frame plates 501 to separate and move to the initial position. Then, the load hydraulic cylinder 204 is controlled to drive the piston shaft to drive the conveying roller 202 to move upward to support the battery box 3, and the battery box 3 can be conveyed out through another channel on the box shell 1.

[0040] Compared with the existing baking equipment, the bottom surface of the battery case 3 can be heated evenly and comprehensively, which improves the baking efficiency and further increases the curing speed of the thermally conductive structural adhesive 301. The frame plate 501 directly and completely adheres to the bottom surface of the battery case 3 to bake and heat the thermally conductive structural adhesive 301, so that the thermally conductive structural adhesive 301 is evenly baked and heated, and the curing quality of the thermally conductive structural adhesive 301 is improved. While ensuring the rapid curing of the thermally conductive structural adhesive 301, the safety of the battery module 302 is guaranteed. By adjusting the power of the resistance wire, the rapid heating effect can be achieved for battery cases 3 of different sizes and the characteristics of the thermally conductive structural adhesive 301.

[0041] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A baking device for battery assembly, comprising a box shell (1) and a battery box body (3) to be baked, characterized in that: A lifting conveying device (2) for conveying a battery box (3) is provided inside the box shell (1), the lifting conveying device (2) comprising a load hydraulic cylinder (204) for driving the lifting of the battery box (3), a laminating heating device (5) located on both sides of the lifting conveying device (2) is provided inside the box shell (1), and the two laminating heating devices (5) are driven by two heating driving devices (9) to move towards or away from each other, and a limiting support device (4) is also provided inside the box shell (1) for keeping the laminating heating device (5) in a horizontal state at all times; The fitted heating device (5) comprises a frame plate (501), a plurality of heating plates (502) are arranged on the top of the frame plate (501), and resistance wires for heating are arranged inside the heating plates (502); The position-limiting support device (4) in the box shell (1) is provided in two groups, and the two groups of position-limiting support devices (4) are respectively provided on both sides of the lifting conveying device (2), and one group of position-limiting support devices (4) is provided in two groups, and the two position-limiting support devices (4) in the same group are respectively provided at both ends of the bonding heating device (5), and the position-limiting support device (4) comprises two horizontally placed U-shaped plates (401), and the U-shaped plates (401) are composed of an upper arm portion, a connecting portion, and a lower arm portion, and one side of the connecting portion of the U-shaped plate (401) is fixedly connected to the inner wall of the box shell (1), and the opening of the U-shaped plate (401) faces the lifting conveying device ( 2), a plurality of equally spaced limiting rollers (402) are provided between the upper arms of the two U-shaped plates (401), a plurality of equally spaced supporting rollers (403) are provided between the lower arms of the two U-shaped plates (401), and the number of the limiting rollers (402) and the supporting rollers (403) are not less than two, two supporting plates II (404) are fixedly installed between the bottoms of the lower arms of the two U-shaped plates (401), and supporting columns (405) are fixedly installed at both ends of the supporting plates II (404), and the laminating heating device (5) is provided between the limiting rollers (402) and the supporting rollers (403); When baking the battery box (3), after the lifting conveyor (2) completely transfers the battery box (3) into the box shell (1), the battery box (3) is supported by the heating plates (502) on both sides of the bottom thereof, and the lifting conveyor (2) is separated from the battery box (3) by the load hydraulic cylinder (204). Then, the two heating drive devices (9) respectively drive the two bonding heating devices (5) to move towards each other until they are in contact, and then the resistance wire is controlled to be energized. The bottom surface of the battery box (3) is baked by the heating plates (502) on the two bonding heating devices (5) until the heat conductive structural adhesive (301) in the battery box (3) is solidified. Then, the two heating drive devices (9) respectively drive the two bonding heating devices (5) to move away from each other to the initial position, and the load hydraulic cylinder (204) controls the lifting conveyor (2) to contact the battery box (3) again, and the baked battery box (3) is transferred out by the lifting conveyor (2).

2. A battery assembly baking device according to claim 1, characterized in that: Both sides of the frame plate (501) are provided with a wire groove (503) located at one end of the heating plate (502), and the wires at both ends of the resistance wire in the heating plate (502) extend out through the wire groove (503). A cover plate (504) covering the wire groove (503) is fixedly mounted on the top of the frame plate (501), and the top surface of the cover plate (504) does not exceed the top surface of the heating plate (502).

3. The battery assembly baking device according to claim 1, characterized in that: The top of the heating plate (502) is movably connected to the outer side of the limiting roller (402), and the bottom of the heating plate (502) is movably connected to the outer side of the supporting roller (403).

4. The battery assembly baking device according to claim 1, characterized in that: The lifting conveying device (2) comprises two cross beams (201), a plurality of conveying rollers (202) are arranged between the two cross beams (201), and the plurality of conveying rollers (202) are arranged equidistantly between the two cross beams (201), a support plate I (203) is fixedly installed at the bottom between the two conveying rollers (202), the number of the support plates I (203) is at least two, and the two support plates I (203) are respectively arranged at two ends of the cross beam (201), and a load hydraulic cylinder (204) is respectively arranged at two ends of the bottom of each support plate I (203).

5. The battery assembly baking device according to claim 1, characterized in that: The heating drive device (9) comprises two support plates III (901), the two support plates III (901) are arranged adjacent to each other, a driving hydraulic cylinder (902) is fixedly mounted on each of the two support plates III (901), and the piston shafts of the two driving hydraulic cylinders (902) are arranged in opposite directions, the piston shafts of the two driving hydraulic cylinders (902) are respectively connected to the two fitted heating devices (5), and support legs (903) are fixedly mounted on both sides of the bottom of the support plate III (901).

6. A battery assembly baking device according to claim 5, characterized in that: Two L-shaped fixing plates (6) are fixedly mounted on the outer side of the frame plate (501), the two L-shaped fixing plates (6) are located between the two groups of limit support devices (4), and the two L-shaped fixing plates (6) are provided with sliding grooves (601) on opposite sides. A limit shaft (7) movably sleeved on the sliding groove (601) is provided between the two L-shaped fixing plates (6), and a linkage sleeve (8) movably sleeved on the limit shaft (7) and located between the two L-shaped fixing plates (6), and one end of the piston shaft of the two driving hydraulic cylinders (902) is respectively fixedly connected to the linkage sleeves (8) provided on the two bonding heating devices (5).

7. A battery assembly baking device according to claim 1, characterized in that: The box shell (1) is provided with a hardness detection device (10) located above the channel, the hardness detection device (10) comprising a positioning mounting plate (101) fixedly mounted on the inner wall of the box shell (1), at least one detection hydraulic cylinder (102) being fixedly mounted on the positioning mounting plate (101), the piston shaft of the detection hydraulic cylinder (102) extending to the bottom of the positioning mounting plate (101) and fixedly mounted with a hardness detection module probe (103).

Images