Heating device
By using a combination of coil heating module and transport belt on the battery cell production line, non-contact uniform heating of the battery cell is achieved, solving the problem of inefficiency of the existing heating devices, and improving production efficiency and battery cell quality.
Patent Information
- Application Number
- CN202421742755.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The existing heating devices are difficult to quickly evaporate the internal water vapor of the power core, resulting in long heating time, high energy consumption, and inability to heat during the transportation of the production line, resulting in low production efficiency.
Multiple coil heating modules are used to form a heating channel, and the electric core is conveyed through the transport belt. Non-contact heating is performed under the magnetic field of the coil heating module, and the battery temperature is monitored and regulated in real time through the controller and temperature measurement components to ensure uniform heating.
It improves heating efficiency, reduces energy consumption, ensures the uniformity of the battery cell heat, and improves production efficiency, cell performance and life.
Smart Images
Figure CN223182352U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery cell heating, and particularly relates to a heating device. Background Art
[0002] During high-temperature standing and baking, due to factors such as the relatively thick thickness and large volume of the battery cell, the heat generated by the heating device is difficult to quickly evaporate the water vapor inside the battery cell, resulting in a long heating time and high energy consumption. This leads to a poor overall heating effect, and it is easy to have uneven heating of the battery cell. Moreover, heating cannot be carried out during the transportation process on the production line. Therefore, during mass production, the overall production efficiency is greatly reduced, and it is impossible to quickly produce more battery cells. Summary of the Utility Model
[0003] The main purpose of the utility model is to propose a heating device, aiming to improve the heating efficiency of the heating device and increase the production efficiency of the battery cell.
[0004] To achieve the above purpose, the heating device proposed by the utility model includes:
[0005] A frame;
[0006] A plurality of heating components arranged along the length direction of the frame to form a heating channel for the battery cell to be heated to pass through. The heating component includes a plurality of coil heating modules spaced around the outer circle of the battery cell to be heated. The coil heating module is fixedly connected to the frame and is used to heat the battery cell to be heated; and
[0007] A conveying component, including a driving member and a conveyor belt connected in transmission. The driving member is fixed to the frame, and the conveyor belt passes through the heating channel to convey the battery cell to be heated to the heating channel for heating.
[0008] In one embodiment, the heating component further includes a connecting member connected to the frame. The coil heating module is connected to the connecting member and includes a magnetic conductor, a coil wound around the magnetic conductor, and a skeleton located between the magnetic conductor and the coil. At least one coil is arranged in the length direction of the frame.
[0009] In one embodiment, the magnetic conductor includes a first magnetic conductor and two second magnetic conductors bent and connected to opposite sides of the first magnetic conductor. The second magnetic conductor extends towards the battery cell to be heated and is wound with the coil.
[0010] In one embodiment, the connecting member includes an inner ring part and an outer ring part arranged in a nested manner. The inner wall of the inner ring part forms the heating channel, the outer ring part is connected to the frame, and the coil heating module is connected between the inner ring part and the outer ring part.
[0011] In one embodiment, the heating device further includes a controller and a temperature measuring component connected to each other. The temperature measuring component is connected to the heating component and is configured to monitor the real-time temperature of the battery cell to be heated passing through the corresponding heating component.
[0012] The controller is connected to the heating component and is also connected to the driving member.
[0013] In one embodiment, the temperature measuring component includes a fixing ring and at least one temperature sensor disposed on the fixing ring. The fixing ring is fixedly connected to the heating component.
[0014] In one embodiment, a supporting wheel is provided on the fixing ring, and the supporting wheel abuts against the side of the conveyor belt away from the battery cell to be heated.
[0015] In one embodiment, a plurality of fixing positions are provided on the conveyor belt, and the fixing positions are arranged at intervals along the extending direction of the conveyor belt.
[0016] In one embodiment, a wheel assembly is connected between the driving member and the conveyor belt;
[0017] The wheel assembly includes a driving wheel and a driven wheel set. The driving wheel is in transmission connection with the driving member and is connected to the driven wheel set through the conveyor belt.
[0018] In one embodiment, the driven wheel set includes a first driven wheel and at least one second driven wheel. The first driven wheel and the driving wheel are respectively disposed on two sides of the machine frame along the length direction of the machine frame, and the second driven wheel is located below the first driven wheel and is configured to tension the conveyor belt.
[0019] In one embodiment, a first fixing plate and a second fixing plate are respectively disposed on two opposite sides of the machine frame. The driving member and the driving wheel are mounted on the first fixing plate, and the first driven wheel is mounted on the second fixing plate;
[0020] The second driven wheel is mounted on at least one of the first fixing plate, the second fixing plate, and the machine frame.
[0021] In the technical solution of the present utility model, the battery cell to be heated is conveyed by the conveyor belt, and since the conveyor belt can pass through the heating channel under the action of the driving member, under the heating action of the coil heating module, the battery cell to be heated can be directly heated during the conveying process, which helps to reduce the production steps, increase the production speed, reduce the production energy consumption, and thus improve the production efficiency of the battery cell.
[0022] Among them, since the heating channel is jointly composed of multiple heating components and is located at the center of multiple coil heating modules, on the one hand, the battery cell to be heated does not directly contact the heating components, which helps to reduce energy consumption. And after the coil heating modules are powered on, they can apply a magnetic field to the battery cell to be heated, so that the battery cell to be heated is heated due to the generation of eddy currents. On the other hand, the opening and closing of each coil heating module can be flexibly controlled, and thus the temperature difference of each part on the battery cell to be heated can be reliably controlled, improving the heating uniformity of the battery cell to be heated, thereby improving the heating efficiency of the heating device and the production efficiency of the battery cell, and further improving the performance and service life of the battery cell. Description of the Drawings
[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the structures shown in these drawings.
[0024] Figure 1 Structural schematic diagram of an embodiment of the heating device provided by the present invention;
[0025] Figure 2 For Figure 1 Assembly schematic diagram of the heating component, the conveyor belt and the temperature measuring component in
[0026] Figure 3 For Figure 2 Side view of the heating component, the conveyor belt and the temperature measuring component in
[0027] Figure 4 For Figure 2 Structural schematic diagram of the heating component in
[0028] Figure 5 For Figure 2 Assembly schematic diagram of the conveyor belt and the temperature measuring component in
[0029] Figure 6 For Figure 5 Structural schematic diagram of the temperature measuring component in
[0030] Figure 7 For Figure 5 Structural schematic diagram of the conveyor belt, the driving part and the wheel assembly in
[0031] Figure 8 For Figure 1 Assembly schematic diagram of the frame and the conveyor belt in
[0032] Explanation of the reference numerals in the drawings:
[0033] 100. Heating device; 10. Frame; 11. Frame body; 111. Receiving cavity; 12. First fixing plate; 13. Second fixing plate;
[0034] 20. Heating assembly; 201. Heating channel; 21. Coil heating module; 211. Magnetic conductor; 2111. First magnetic conductor; 212. Coil; 213. Skeleton; 22. Inner ring part; 23. Outer ring part;
[0035] 30. Conveying assembly; 31. Conveyor belt; 311. Fixed clamping position; 32. Support wheel; 33. Driving wheel; 34. First driven wheel; 35. Second driven wheel; 36. Driving part;
[0036] 40. Temperature measuring assembly; 41. Fixed ring; 411. First mounting hole; 412. Second mounting hole; 42. Temperature measuring sensor;
[0037] 200. Battery cell to be heated.
[0038] The realization, functional features and advantages of the purpose of the present utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings. Detailed implementation manners
[0039] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0040] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, such descriptions of "first", "second", etc. are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or is unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0042] During high-temperature standing and baking, due to factors such as the relatively thick thickness and large volume of the battery cell, the heat generated by the heating device 100 is difficult to quickly evaporate the water vapor inside the battery cell. Its heating time is long and the energy consumption is high, resulting in a poor overall heating effect. It is easy to have uneven heating of the battery cell, and moreover, heating cannot be carried out during the transportation process on the production line body. Furthermore, during mass production, the overall production efficiency is greatly reduced, and more battery cells cannot be produced quickly.
[0043] To solve this technical problem, the present utility model proposes a heating device 100 to improve the heating efficiency of the heating device 100 and thereby improve the production efficiency of the battery cell.
[0044] Please refer to Figures 1 to 8 , in an embodiment of the present utility model, the heating device 100 includes a frame 10, a plurality of heating components 20, and a conveying component 30; the plurality of heating components 20 are arranged along the length direction of the frame 10 to form a heating channel 201 for the battery cell 200 to be heated to pass through. The heating component 20 includes a plurality of coil heating modules 21 spaced around the outer circle of the battery cell 200 to be heated. The coil heating module 21 is fixedly connected to the frame 10 and is used to heat the battery cell 200 to be heated; the conveying component 30 includes a driving member 36 and a conveyor belt 31 that are drivingly connected. The driving member 36 is fixed to the frame 10, and the conveyor belt 31 passes through the heating channel 201 to convey the battery cell 200 to be heated to the heating channel 201 for heating; thus, the battery cell 200 to be heated can be evenly heated during transportation, improving the heating efficiency of the heating device 100 and thereby improving the production efficiency of the battery cell.
[0045] In the technical solution of the present invention, the battery core 200 to be heated is transported by a conveyor belt 31, and because the conveyor belt 31 can pass through the heating channel 201 under the action of the driving member 36, the battery core 200 to be heated can be directly heated during the transportation process under the heating action of the coil heating module 21, which helps to reduce production steps, speed up production, reduce production energy consumption, and thus improve the production efficiency of the battery core.
[0046] Among them, because the heating channel 201 is composed of multiple heating components 20 and is located in the center of multiple coil heating modules 21, on the one hand, the battery core 200 to be heated is not in direct contact with the heating component 20, which helps to reduce energy consumption, and the coil heating module 21 can apply a magnetic field to the battery core 200 to be heated after being energized, so that the battery core 200 to be heated is heated due to the generation of eddy currents; on the other hand, the opening and closing of each coil heating module 21 can be flexibly controlled, and thus the temperature difference of each part on the battery core 200 to be heated can be reliably controlled, thereby improving the heating uniformity of the battery core 200 to be heated, thereby improving the heating efficiency of the heating device 100 and the production efficiency of the battery core, and thus improving the performance and life of the battery core.
[0047] The rack 10 includes a rack body 11. The rack body 11 may be formed with a receiving cavity 111 for accommodating components such as the heating component 20 to separate the heating component 20 to reduce the risk of damage. Of course, the rack 10 may not be formed with the receiving cavity 111. The rack 10 is provided with a driving member 36 and a conveyor belt 31 connected by a transmission connection to achieve the purpose of conveying the battery cells 200 to be heated. The driving member 36 may be fixed to the rack 10 by, for example, bolt connection, clamping, etc. The conveyor belt 31 passes through the heating channel 201 and, under the action of the driving member 36, conveys the battery cells 200 to be heated through the heating channel 201. A plurality of battery cells 200 to be heated may be placed on the conveyor belt 31 to shorten the production time and improve production efficiency.
[0048] The heating assembly 20 is fixed to the frame 10, and the coil heating modules 21 on the heating assembly 20 are evenly arranged on the periphery of the battery cell 200 to be heated. The coil heating modules 21 can be controlled to open and close simultaneously, or one or more coil heating modules 21 can be controlled to open and close in sequence in a clockwise (counterclockwise) direction; or, the power and frequency changes of the magnetic field generating element can be controlled by selectively controlling the opening and closing of one or more designated coil heating modules 21, thereby greatly meeting the requirements of different heating power and heating speed, and being able to regulate or eliminate large temperature differences, so that the heating device 100 is compatible and adaptable to various working conditions, while ensuring uniform heating of the battery cell 200 to be heated and improving the heating efficiency of the heating device 100. The selective opening and closing of a coil heating module 21 can mainly eliminate the temperature difference of various parts on the battery cell 200 to be heated according to demand. In this embodiment, taking a single heating component 20 as an example, the two coil heating modules 21 arranged opposite to each other on the heating component 20 work at the same time and belong to the same group. When one group starts working, the other groups stop working, which can ensure the uniform heating of the battery core 200 to be heated. In other words, by quickly switching each group to work in a certain direction, it can not only achieve uniform heating of the battery core 200 to be heated and enhance the heating effect, but also reduce the energy consumption caused by turning on each coil heating module 21 at the same time; in addition, by cooperating with the coil heating modules 21 on multiple heating components 20, the temperature difference on the battery core 200 to be heated can be eliminated during transportation.
[0049] While ensuring that the assembly of each coil heating module 21 does not interfere with each other, the gap between each coil heating module 21 is as small as possible, thereby increasing the number of coil heating modules 21, which helps to increase the maximum saturation magnetic field of the magnetic field generating element, enhance the magnetic density, reduce energy consumption, and thus facilitate improvement of temperature difference and heating efficiency.
[0050] It should be noted that the number of heating components 20 mainly depends on the specific length of the rack 10, the specific length of the battery cells 200 to be heated and the carrying capacity of the conveyor belt 31, to ensure that each battery cell 200 to be heated on the conveyor belt 31 can be heated during transportation, thereby reducing energy consumption and improving the production efficiency of the battery cells; the power supply of the coil heating module 21 can be three-phase alternating current. In addition, the non-contact heating method omits the heat conduction step, which helps to reduce energy consumption and improve heating efficiency.
[0051] See also Figures 1 to 4, in an embodiment of the present utility model, the heating assembly 20 further includes a connecting member connected to the frame 10, the coil heating module 21 is connected to the connecting member, and includes a magnetic conductor 211, a coil 212 wound around the magnetic conductor 211, and a bobbin 213 located between the magnetic conductor 211 and the coil 212. At least one coil 212 is arranged in the length direction of the frame 10. In this way, each coil heating module 21 is fixed into a whole through the connecting member, which facilitates the assembly of the heating assembly 20 on the frame 10; and, because at least one coil 212 and the magnetic conductor 211 cooperating therewith are arranged in the length direction of the frame 10, it helps to increase the number of coil heating modules 21 on the heating assembly 20, so that each coil heating module 21 is closely arranged on the outer periphery of the battery cell 200 to be heated, ensuring that each part of the battery cell 200 to be heated is heated, and reducing or eliminating the temperature difference between different parts of the battery cell 200 to be heated, reducing energy consumption, and making the battery cell 200 to be heated uniformly heated, which helps to improve the heating efficiency and improve the heating effect.
[0052] Wherein, a bobbin 213 is arranged between the coil 212 and the magnetic conductor 211 to facilitate the winding of the coil 212; at least one of the bobbin 213 and the magnetic conductor 211 is connected to the connecting member to realize the assembly of each coil heating module 21 on the connecting member; the connection manner between the connecting member and the frame 10 includes but is not limited to welding, buckling, and plugging; the connecting member is non-magnetic.
[0053] Further, in an embodiment of the present utility model, the magnetic conductor 211 includes a first magnetic conductor 2111 and two second magnetic conductors bent and connected to opposite sides of the first magnetic conductor 2111. The second magnetic conductors extend towards the battery cell 200 to be heated and are wound with the coil 212. Compared with the two second magnetic conductors being separately arranged, the magnetic conductor 211 is U-shaped, and the two second magnetic conductors are juxtaposed and connected to one side of the first magnetic conductor 2111. On the one hand, the number of connecting members (outer ring part 23) is reduced or the volume of the connecting member is reduced, improving the assembly efficiency of the heating assembly 20. On the other hand, because both the first magnetic conductor 2111 and the second magnetic conductor are made of magnetic materials, and the second magnetic conductor is wound with the coil 212, it helps to optimize the overall magnetic circuit, improve the magnetic field intensity, and thus improve the heating effect.
[0054] Wherein, the materials of the first magnetic conductor 2111 and the second magnetic conductor may be the same or different; the number of second magnetic conductors arranged on the first magnetic conductor 2111 is not limited to increase the maximum saturation magnetic field, enhance the magnetic density, reduce energy consumption, and further facilitate the improvement of the temperature difference and heating efficiency.
[0055] Please refer to Figure 4, in an embodiment of the present utility model, the connecting member includes an inner ring portion 22 and an outer ring portion 23 which are nested. The inner wall of the inner ring portion 22 forms the heating channel 201. The outer ring portion 23 is connected to the frame 10, and the coil heating module 21 is connected between the inner ring portion 22 and the outer ring portion 23, so that the overall structural stability of the heating assembly 20 can be improved.
[0056] The outer ring portion 23 is arranged away from the inner ring portion 22 and the battery cell 200 to be heated, which is convenient for the outer ring portion 23 to be fixedly connected to the frame 10 and also convenient for the outer ring portion 23 to be connected to the first magnetic conductor 2111. Through the arrangement of the inner ring portion 22, the inner ring portion 22 can be connected to the second magnetic conductor and / or the skeleton 213, which can not only improve the assembly stability of the coil heating module 21 and the stability of the magnetic field, but also define part of the heating channel 201, facilitate the docking with the inner ring portion 22 of other heating assemblies 20 to form the heating channel 201, and at the same time isolate the battery cell 200 to be heated and the coil heating module 21, reduce the risk of interference, and ensure the smooth conveyance of the battery cell 200 to be heated relative to the heating channel 201. However, in other embodiments, the inner ring portion 22 is connected to the frame 10.
[0057] Specifically, each coil heating module 21 can be connected into a whole through an inner ring portion 22. At this time, the cross-section of the inner ring portion 22 is a closed arc segment, such as a circle, or can also be connected by a plurality of spaced inner ring portions 22. At this time, the cross-section of the inner ring portion 22 is an arc segment, reducing the overall weight of the heating assembly 20. However, in other embodiments, the connecting member only includes the outer ring portion 23.
[0058] To ensure uniform heating of the battery cell 200 to be heated, please refer to Figures 4 to 8 , in an embodiment of the present utility model, the heating device 100 further includes a controller and a temperature measuring component 40 which are connected. The temperature measuring component 40 is connected to the heating assembly 20 and is used for monitoring the real-time temperature of the battery cell 200 to be heated passing through the corresponding heating assembly 20. The controller is connected to the heating assembly 20 and is also connected to the driving member 36. It can be understood that the temperature measuring component 40 is connected to the heating assembly 20 so that when the battery cell 200 to be heated enters the heating channel 201, it is convenient to monitor the current temperature of the battery cell 200 to be heated in real time and feedback it to the controller, and it is also convenient for the controller to control the operation of the heating assembly 20 and the conveyance of the battery cell 200 to be heated, realizing the heating of the battery cell 200 to be heated.
[0059] A heating component 20 is correspondingly provided with a temperature measuring component 40, which is convenient for monitoring the same to-be-heated battery cells 200 located at different positions during transportation. That is, when a to-be-heated battery cell 200 passes through the heating channel 201 corresponding to the heating component 20, and the temperature measuring component 40 monitors the current temperature of the to-be-heated battery cell 200, the controller controls the power and frequency changes of the heating component 20 according to the set target temperature (each coil heating module 21 is turned on simultaneously, or is turned on sequentially in a certain direction, etc.) to heat the to-be-heated battery cell 200, and the heating component 20 without a to-be-heated battery cell 200 passing through stops working to reduce energy consumption; during this process, the controller performs PID adjustment according to the current transportation speed of the conveyor belt 31, and, according to the real-time temperature feedback by the temperature measuring component 40, when it is determined that the temperature of a certain part is relatively low after being fed back to the controller, the corresponding coil heating module 21 is selectively turned on for fixed-point heating, or, when it is determined that the temperature of a certain part is too high after being fed back to the controller, the corresponding coil heating module 21 is selectively turned off to achieve the purpose of cooling. In this way, uniform heating of each to-be-heated battery cell 200 on the conveyor belt 31 can be realized, the heating efficiency of the heating device 100 can be improved, and further the production efficiency of the battery cells can be improved, and the performance and service life of the battery cells can be improved.
[0060] Please refer to Figure 6 , in an embodiment of the present invention, the temperature measuring component 40 includes a fixing ring 41 and at least one temperature measuring sensor 42 disposed on the fixing ring 41. The fixing ring 41 is fixedly connected to the heating component 20. Among them, the temperature measuring sensor 42 is connected to the controller to reliably feed back the corresponding temperature signal to the controller; a first mounting hole 411 for fixing the temperature measuring sensor 42 is formed on the fixing ring 41, and two first mounting holes 411 are oppositely arranged in the radial direction of the fixing ring 41, which is convenient for increasing the temperature measuring range of the temperature measuring component 40 and ensuring the temperature monitoring of each part of the to-be-heated battery cell 200. In this embodiment, the temperature measuring sensor 42 is configured as an infrared temperature measuring sensor 42.
[0061] The fixing ring 41 is coaxially arranged with the inner ring part 22 in the heating component 20, which is convenient for the penetration of the conveyor belt 31. At the same time, it is ensured that the temperature measuring sensor 42 is as close as possible to the heating channel 201. The connection manner between the fixing ring 41 and the inner ring part 22 includes, but is not limited to, integral molding, bonding, and snap connection.
[0062] In order to enhance the transportation reliability of the conveyor belt 31, in the embodiment of the present utility model, a support wheel 32 is provided on the fixing ring 41. The support wheel 32 abuts against the side of the conveyor belt 31 facing away from the to-be-heated battery cell 200, that is, a part of the conveyor belt 31 is clamped between the to-be-heated battery cell 200 and the support wheel 32. A plurality of support wheels 32 can be provided, which can not only tension the conveyor belt 31 to smoothly convey the to-be-heated battery cell 200 in the heating channel 201, but also disperse the force on the conveyor belt 31, improve the force condition on the conveyor belt 31, and extend its service life. Two relatively arranged second mounting holes 412 are formed on the fixing ring 41, and the connecting shaft extending from the support wheel 32 passes through the second mounting holes 412 to ensure the stable assembly of the support wheel 32 on the fixing ring 41.
[0063] Please refer to Figure 7 , in the embodiment of the present utility model, a plurality of fixing positions 311 are provided on the conveyor belt 31. Each of the fixing positions 311 is arranged at intervals along the extending direction of the conveyor belt 31. A groove body adapted to the outer contour of the to-be-heated battery cell 200 is formed on the fixing position 311. By using some of the fixing positions 311 to jointly support the to-be-heated battery cell 200, the to-be-heated battery cell 200 is clamped on the corresponding groove body, reliably positioning the position of the to-be-heated battery cell 200 on the conveyor belt 31. At the same time, the risk of the to-be-heated battery cell 200 shifting during transportation is reduced, that is, the to-be-heated battery cell 200 is located on the central axis of the heating channel 201, and each coil heating module 21 is evenly arranged around the outer periphery of the to-be-heated battery cell 200, improving the heating uniformity of the to-be-heated battery cell 200.
[0064] Please refer to Figure 5 and Figure 7 , in the embodiment of the present utility model, a wheel assembly is connected between the driving member 36 and the conveyor belt 31; the wheel assembly includes a driving wheel 33 and a driven wheel group. The driving wheel 33 is in transmission connection with the driving member 36 and is connected to the driven wheel group through the conveyor belt 31. Furthermore, the driving member 36 is a driving motor, and the driving shaft of the driving member 36 is connected to the driving wheel 33 to drive the driving wheel 33 to perform circular motion, and the conveyor belt 31 is fixed by using the driven wheel group, so that the driving wheel 33 can drive the conveyor belt 31 to move and convey the to-be-heated battery cell 200.
[0065] Specifically, the driven wheel set includes a first driven wheel 34 and at least one second driven wheel 35. The first driven wheel 34 and the driving wheel 33 are disposed on two sides of the frame 10 along the length direction of the frame 10. The second driven wheel 35 is located below the first driven wheel 34 and is used to tension the conveyor belt 31. That is, the first driven wheel 34 and the driving wheel 33 are located on opposite sides of the heating channel 201, which facilitates the conveyor belt 31 to carry and stably convey the battery cell 200 to be heated. When the distance between the first driven wheel 34 and the driving wheel 33 cannot be adjusted, to avoid the conveyor belt 31 from being slack, and since the heating assembly 20 is provided on the upper side of the conveyor belt 31, the second driven wheel 35 is disposed below the first driven wheel 34 or the driving wheel 33 to adjust the tension of the conveyor belt 31 and improve the transportation reliability of the conveyor belt 31. In this embodiment, two second driven wheels 35 are provided.
[0066] Please refer to Figure 8 , in the embodiment of the present invention, a first fixing plate 12 and a second fixing plate 13 are respectively disposed on two opposite sides of the frame 10. The driving member 36 and the driving wheel 33 are mounted on the first fixing plate 12, and the first driven wheel 34 is mounted on the second fixing plate 13; the second driven wheel 35 is mounted on at least one of the first fixing plate 12, the second fixing plate 13, and the frame 10.
[0067] It can be understood that the first fixing plate 12 includes two first sub-plates spaced apart along the width direction of the frame 10. The connecting shaft of the driving wheel 33 is connected to the first sub-plates, so that the driving wheel 33 is located between the two first sub-plates. Similarly, the second fixing plate 13 includes two second sub-plates spaced apart along the width direction of the frame 10. The connecting shaft of the first driven wheel is connected to the second sub-plates, so that the second driven wheel 35 is located between the two second sub-plates, and further the conveyor belt 31 is limited between the two first sub-plates and the two second sub-plates. In this embodiment, two second driven wheels 35 are provided and are respectively fixed to the first fixing plate 12 and the second fixing plate 13, which helps to improve the transportation stability of the conveyor belt 31.
[0068] The above is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.
Claims
1. A heating device, characterized in that, include: frame; A plurality of heating components are arranged along the length direction of the frame to form a heating channel for the battery cells to be heated to pass through, the heating components include a plurality of coil heating modules with spacer rings arranged on the outer rings of the battery cells to be heated, the coil heating modules are fixedly connected to the frame and are used to heat the battery cells to be heated; and A conveying assembly, comprising a driving member and a conveyor belt in transmission connection, wherein the driving member is fixed to the frame, and the conveyor belt passes through the heating channel to convey the battery cells to be heated to the heating channel for heating. The conveyor belt is provided with a plurality of fixed positions, each of which is arranged at intervals along the extension direction of the conveyor belt, and each fixed position is formed with a groove body adapted to the outer contour of the battery cells to be heated; The heating assembly also includes a connecting member connected to the frame. The coil heating module is connected to the connecting member and includes a magnetic conductor, a coil wound around the magnetic conductor, and a skeleton located between the magnetic conductor and the coil. At least one coil is arranged in the length direction of the frame.
2. The heating device according to claim 1, characterized in that, The magnetic conductor includes a first magnetic conductor and two second magnetic conductors bent and connected to opposite sides of the first magnetic conductor, the second magnetic conductors extending toward the electric core to be heated and having the coil wound therearound; And / or, the connecting component includes an inner ring portion and an outer ring portion that are nested, the inner wall of the inner ring portion forms the heating channel, the outer ring portion is connected to the frame, and the coil heating module is connected between the inner ring portion and the outer ring portion.
3. The heating device according to claim 1, wherein The heating device further includes a controller and a temperature measuring component connected to each other, wherein the temperature measuring component is connected to the heating component and is used to monitor the real-time temperature of the battery cell to be heated passing through the corresponding heating component; The controller is connected to the heating component and also connected to the driving member.
4. The heating device according to claim 3, wherein The temperature measuring component includes a fixing ring and at least one temperature measuring sensor arranged on the fixing ring, and the fixing ring is fixedly connected to the heating component.
5. The heating device according to claim 4, characterized in that, The fixing ring is provided with a supporting wheel, and the supporting wheel abuts against a side of the conveyor belt away from the battery core to be heated.
6. The heating device according to claim 1, characterized in that, A wheel assembly is connected between the driving member and the conveyor belt; The wheel assembly includes a driving wheel and a driven wheel group. The driving wheel is in transmission connection with the driving member and is connected to the driven wheel group through the conveyor belt.
7. The heating device according to claim 6, characterized in that, The driven wheel assembly includes a first driven wheel and at least one second driven wheel. The first driven wheel and the driving wheel are arranged on both sides of the frame along the length direction of the frame. The second driven wheel is located below the first driven wheel and is used to tension the conveyor belt.
8. The heating device according to claim 7, characterized in that, A first fixing plate and a second fixing plate are respectively provided on opposite sides of the frame, the driving member and the driving wheel are mounted on the first fixing plate, and the first driven wheel is mounted on the second fixing plate; The second driven wheel is mounted on at least one of the first fixing plate, the second fixing plate, and the frame.