Hot pressing equipment and battery production line
By separating heating and pressurization, and utilizing a hot pressing device with a high-frequency coil and guide rail structure, the problem of low efficiency in existing hot pressing devices has been solved, thereby improving cell density and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
- Filing Date
- 2026-03-06
- Publication Date
- 2026-05-26
AI Technical Summary
Existing hot pressing devices are inefficient in the battery production process and cannot effectively reduce the internal gaps of the battery cell, thus affecting the charging and discharging efficiency.
The design employs a combination of conveying components, electromagnetic heating components, and pressurizing components, allowing for separate heating and pressurization processes of the battery cells. It utilizes high-frequency coils for non-contact heating, and combines height adjustment components and guide rod/rail structures to ensure heating uniformity and equipment compatibility.
It improves cell density, increases production efficiency, reduces equipment size, facilitates continuous production, avoids dust pollution caused by physical friction, and is compatible with cells of different specifications.
Smart Images
Figure CN224288288U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery technology, and in particular to a hot pressing device and a battery production line. Background Technology
[0002] During battery production, the battery cells need to be hot-pressed using a hot-pressing device to reduce the voids inside the cells, increase the contact area between the positive and negative electrode materials and the separator, and improve the battery's charging and discharging efficiency.
[0003] The hot pressing device in the related technology is inefficient during use. Utility Model Content
[0004] In view of the above problems, this application provides a hot pressing device and a battery production line, which can solve the problem of low efficiency of existing hot pressing devices during use.
[0005] To solve the above-mentioned technical problems, this application proposes a hot pressing device, comprising:
[0006] The delivery assembly is configured to deliver battery cells;
[0007] An electromagnetic heating assembly adapted to the conveying assembly, the electromagnetic heating assembly being configured to heat the electric cells on the conveying assembly;
[0008] A pressurizing assembly is disposed at the end of the conveying assembly in the conveying direction, and the pressurizing assembly is configured to apply pressure to the heated battery cell;
[0009] A carrier assembly includes a carrier plate and a limiting block. The carrier plate is connected to the conveying assembly, and the limiting block is disposed on the surface of the carrier plate. When the battery cell is placed on the carrier plate, the limiting block is configured to limit the position of the battery cell on the carrier plate.
[0010] In the technical solution of this application embodiment, when the conveying component transports the battery cells, the electromagnetic heating component heats the battery cells on the conveying component. After heating, the battery cells are transferred to the pressurizing component for pressurization to improve the density of the battery cells. The overall process is highly automated, separating the heating and pressurizing processes, effectively improving the efficiency of the conveying component in transporting the battery cells, thereby improving the overall work efficiency. Simultaneously, after the battery cells are placed on the carrier plate, the limiting blocks prevent the battery cells from shifting relative to the carrier plate during transport.
[0011] In some embodiments, the electromagnetic heating assembly includes at least one set of first high-frequency coils and at least one set of second high-frequency coils;
[0012] The first high-frequency coil and the second high-frequency coil are respectively disposed on opposite sides of the conveying component along the first direction. Both the first high-frequency coil and the second high-frequency coil are configured to generate eddy currents through electromagnetic induction and heat the battery cell that moves into its induction area. The first direction intersects with the conveying direction of the conveying component.
[0013] In this way, the eddy current effect generated by the high-frequency coil achieves internal heating of the battery cell, resulting in rapid temperature rise. This meets the process cycle of high-speed conveying of the conveying assembly, improving production efficiency. Furthermore, the high-frequency coil has a compact structure and can be directly arranged along the conveying direction, eliminating the need for a large oven, reducing equipment size, and facilitating continuous production on the production line. Simultaneously, the placement of the first and second high-frequency coils on the upper and lower sides of the conveying assembly ensures uniform heating along the thickness direction of the battery cell, effectively solving the temperature difference problem inside and outside the core package caused by traditional heating methods and guaranteeing consistent pre-densification effects. Moreover, the first and second high-frequency coils heat the battery cell using a non-contact heating method, avoiding dust contamination caused by physical friction.
[0014] In some embodiments, the hot pressing device further includes a mounting frame and a height adjustment component, wherein the first high-frequency coil and the second high-frequency coil are both connected to the mounting frame via the height adjustment component;
[0015] The height adjustment element is configured to adjust the distance between the first high-frequency coil, the second high-frequency coil and the conveying component, respectively.
[0016] In this way, by adjusting the distance between the first and second high-frequency coils and the conveying component through the height adjustment component, the distance difference caused by different thicknesses of battery cells can be compensated, so that the whole device can be compatible with the pre-densification processing of battery cells of various specifications. At the same time, by adjusting the distance between the high-frequency coil and the surface of the battery cell to the optimal value of the process, the electromagnetic induction coupling efficiency of battery cells of different batches and thicknesses can be guaranteed to be consistent, thereby ensuring the stability of the heating temperature and solving the problem of uneven heating caused by the difference in battery cell thickness.
[0017] In some embodiments, the hot pressing device further includes a base, and the pressurizing assembly includes a first driving member, a support plate, a support rod, a top plate, a second driving member, and a pressure plate;
[0018] The first driving component is fixed to the base, and the first driving component is connected to the support plate;
[0019] One end of the support rod is fixed to the base, and the other end of the support rod is connected to the top plate. The second driving member is connected to the side of the top plate facing the support plate, and the second driving member is connected to the pressure plate.
[0020] The first driving member is configured to move the support plate closer to or away from the pressure plate, and the second driving member is configured to move the pressure plate closer to or away from the support plate.
[0021] In this way, when the heated battery cell is transferred between the support plate and the pressure plate, the first driving component moves the support plate closer to the pressure plate, and the second driving component moves the pressure plate closer to the support plate, which makes it easy to pressurize the heated battery cell.
[0022] In some embodiments, the pressurizing assembly further includes a first guide rod, one end of which is connected to the side of the pressure plate facing the top plate, the other end of which passes through the top plate, and the first guide rod is axially movable relative to the top plate.
[0023] In this way, under the constraint of the first guide rod, the pressure plate can be ensured to move axially, preventing the pressure plate from tilting when it approaches the support plate.
[0024] In some embodiments, the pressurization assembly further includes a connector and a second guide rod;
[0025] The connector is fixed to the support plate, one end of the second guide rod is fixed to the base, the other end of the second guide rod passes through the connector, and the second guide rod can move axially relative to the connector.
[0026] In this way, under the constraint of the second guide rod, the support plate can be ensured to move axially, preventing the support plate from tilting when it approaches the pressure plate.
[0027] In some embodiments, the pressure plate has heat dissipation grooves on the side facing the top plate. This allows the heat dissipation grooves on the pressure plate to facilitate heat dissipation from the battery cell when the heated cell is located between the support plate and the pressure plate, thereby achieving the purpose of cooling the battery cell.
[0028] In some embodiments, the pressurization assembly further includes a detection element connected to the pressure plate, the detection element being configured to detect the pressure between the pressure plate and the support plate.
[0029] In this way, the pressure between the pressure plate and the support plate is detected by the testing device, which prevents excessive pressure between the pressure plate and the support plate from damaging the battery cell.
[0030] In some embodiments, the pressurization assembly further includes a timer fixed to the top plate.
[0031] In this way, the pressurization time can be easily controlled by a timer, avoiding pressurization time that is too short or too long, which would affect the pressurization effect.
[0032] In some embodiments, the hot pressing device further includes a heat sink that is adapted to the battery cell held between the support plate and the pressure plate.
[0033] In this way, when the heat from the battery cell is transferred to the heat sink, the heat absorbed by the heat sink is dissipated by the heat sink, which allows the battery cell to cool down quickly.
[0034] In some embodiments, the hot pressing device further includes a third drive member connected to the base and configured to move the base toward or away from the conveying assembly.
[0035] In this way, the third driving component moves the base closer to the conveying component. Since the pressurizing component is set on the base, the third driving component can simultaneously move the pressurizing component closer to the conveying component, which facilitates the transfer of the heated battery cell to the pressurizing component.
[0036] In some embodiments, the hot pressing device further includes a clamping assembly adapted to the conveying assembly, the clamping assembly being configured to transfer the heated battery cell to the support plate.
[0037] This allows for easy transfer of the heated battery cells using the clamping assembly.
[0038] In some embodiments, the clamping assembly includes a fixed base, a first clamping plate, a second clamping plate, and a fourth driving member;
[0039] The second clamping plate and the fourth driving member are both fixed to the fixed base, and the fourth driving member is connected to the first clamping plate. The fourth driving member is configured to drive the first clamping plate to move closer to or away from the second clamping plate.
[0040] In this way, the corresponding battery cell is held in place by the interaction between the first and second clamping plates, and the battery cell can be kept in a fixed state during transfer.
[0041] In some embodiments, the clamping assembly further includes a sensor disposed on the first clamping plate, and / or, the sensor disposed on the second clamping plate.
[0042] The sensor facilitates the detection of whether a battery cell is clamped between the first and second clamping plates.
[0043] In some embodiments, the fixed base is provided with a guide rail, and the end of the first clamping plate facing the fixed base is provided with a sliding groove, which cooperates with the guide rail.
[0044] In this way, under the constraints of the guide rail and the slide, when the first clamping plate moves towards the second clamping plate, it can only move along the direction of the guide rail, thus preventing it from shifting and affecting the clamping effect.
[0045] In some embodiments, the hot pressing device further includes a flexible pad disposed on the side of the first clamping plate facing the second clamping plate, and / or,
[0046] The flexible pad is disposed on the side of the second clamping plate facing the first clamping plate.
[0047] This avoids damage to the surface of the battery cell when the first and second clamping plates are clamping it.
[0048] In some embodiments, the flexible pad is detachably connected to the first clamping plate, and / or the flexible pad is detachably connected to the second clamping plate.
[0049] This makes it easy to replace the corresponding flexible pad.
[0050] In some embodiments, the hot pressing device further includes a temperature sensing element and a controller, the temperature sensing element being adapted to the electromagnetic heating assembly, and the temperature sensing element being configured to detect the heating temperature of the battery cell;
[0051] The controller is electrically connected to the temperature sensor and the electromagnetic heating assembly, respectively, and the controller is configured to adjust the output power of the electromagnetic heating assembly according to the detection data of the temperature sensor.
[0052] This makes it easier to control the output power of the electromagnetic heating component, preventing the output power from being too high or too low, which would affect the heating effect.
[0053] This application also proposes a battery production line, including a hot pressing device as described in any one of the embodiments of this application.
[0054] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description
[0055] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the embodiments described below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0056] Figure 1Schematic diagram of a hot pressing apparatus provided in some embodiments of this application;
[0057] Figure 2 for Figure 1 Enlarged diagram of point A in the diagram;
[0058] Figure 3 Schematic diagram of a pressurization assembly provided in some embodiments of this application;
[0059] Figure 4 A schematic diagram of a pressurization assembly provided in some embodiments of this application from another perspective;
[0060] Figure 5 Schematic diagram of clamping components provided in some embodiments of this application;
[0061] Figure 6 for Figure 5 Enlarged diagram of point B in the image.
[0062] The reference numerals in the detailed embodiments are as follows:
[0063] 10. Battery cell; 11. Conveying assembly; 12. Bearing assembly; 121. Bearing plate; 122. Limiting block; 13. Electromagnetic heating assembly; 131. First high-frequency coil; 132. Second high-frequency coil; 14. Pressurizing assembly; 141. First driving component; 142. Support plate; 1421. Connecting arm; 143. Support rod; 144. Top plate; 145. Second driving component; 146. First guide rod; 147. Pressure plate; 1471. Heat dissipation groove; 148. Connector; 149. Second guide rod; 15. Heat dissipation component; 16. Base; 17. Third driving component; 18. Clamping assembly; 181. Fixing seat; 182. Guide rail; 183. First clamping plate; 184. Second clamping plate; 185. Fourth driving component; 186. Sensor; 19. Flexible pad. Detailed Implementation
[0064] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.
[0065] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.
[0066] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.
[0067] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0068] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.
[0069] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).
[0070] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0071] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0072] During battery production, the battery cells need to be hot-pressed using a hot-pressing device to reduce the voids inside the cells, increase the contact area between the positive and negative electrode materials and the separator, and improve the battery's charging and discharging efficiency.
[0073] The hot pressing device in the related technology is inefficient during use.
[0074] Based on the above considerations, in order to solve the problem of low efficiency in the use of existing hot pressing devices, this application designs a hot pressing device, which includes a conveying component, an electromagnetic heating component, a pressurizing component, and a carrying component. The conveying component is configured to convey the battery cell, the electromagnetic heating component is adapted to the conveying component and is configured to heat the battery cell on the conveying component, the pressurizing component is located at the end of the conveying direction of the conveying component and is configured to apply pressure to the heated battery cell, and the carrying component includes a carrying plate and a limiting block. The carrying plate is connected to the conveying component, and the limiting block is disposed on the surface of the carrying plate. When the battery cell is placed on the carrying plate, the limiting block is configured to limit the position of the battery cell on the carrying plate.
[0075] In the technical solution of this application embodiment, when the conveying component transports the battery cells, the electromagnetic heating component heats the battery cells on the conveying component. After heating, the battery cells are transferred to the pressurizing component for pressurization to improve the density of the battery cells. The overall process is highly automated, separating the heating and pressurizing processes, effectively improving the efficiency of the conveying component in transporting the battery cells, thereby improving the overall work efficiency. Simultaneously, after the battery cells are placed on the carrier plate, the limiting blocks prevent the battery cells from shifting relative to the carrier plate during transport.
[0076] According to some embodiments of this application, such as Figure 1 and combined Figure 2 As shown, this application provides a hot pressing device, which includes a conveying assembly 11, an electromagnetic heating assembly 13, a pressurizing assembly 14, and a carrying assembly 12. The conveying assembly 11 is configured to convey a battery cell 10. The electromagnetic heating assembly 13 is adapted to the conveying assembly 11 and is configured to heat the battery cell 10 on the conveying assembly 11. The pressurizing assembly 14 is located at the end of the conveying direction of the conveying assembly 11 and is configured to apply pressure to the heated battery cell 10. The carrying assembly 12 includes a carrying plate 121 and a limiting block 122. The carrying plate 121 is connected to the conveying assembly 11, and the limiting block 122 is disposed on the surface of the carrying plate 121. When the battery cell 10 is placed on the carrying plate 121, the limiting block 122 is configured to limit the position of the battery cell 10 on the carrying plate 121.
[0077] In this embodiment, the conveying component 11 can be a belt conveyor, roller conveyor, etc., and is not limited here.
[0078] In this embodiment, the electromagnetic heating component 13 can be a high-frequency heating coil. After passing through, the high-frequency heating coil generates eddy currents through electromagnetic induction, which rapidly heat the passing battery cell. The pressurizing component 14 can be a pressing mechanism formed by a cylinder. The specific design can be determined according to the actual situation, and this embodiment does not limit it.
[0079] In this embodiment, the carrier plate 121 can be snapped onto the conveyor belt on the conveyor assembly 11, which is not limited here.
[0080] In this embodiment, the limiting block 122 can be integrally formed with the carrier plate 121. In this embodiment, four limiting blocks 122 are provided on the carrier plate 121, and the four limiting blocks 122 correspond to the four corners of the battery cell 10. Of course, it can be understood that the limiting block 122 can also be snapped onto the carrier plate 121, which is not limited here.
[0081] In the technical solution of this application embodiment, when the conveying component 11 conveys the battery cell 10, the electromagnetic heating component 13 heats the battery cell 10 on the conveying component 11. After heating, the battery cell 10 is transferred to the pressurizing component 14 for pressurization to improve the density of the battery cell 10. The overall process is highly automated, separating the heating and pressurizing processes, effectively improving the efficiency of the conveying component 11 in conveying the battery cell 10, thereby improving the overall work efficiency. At the same time, when the battery cell 10 is placed on the carrier plate 121, the limiting block 122 can prevent the battery cell 10 from moving relative to the carrier plate 121 during the conveying process.
[0082] According to some embodiments of this application, such as Figure 1 As shown, the electromagnetic heating assembly 13 includes at least one set of first high-frequency coils 131 and at least one set of second high-frequency coils 132; wherein, the first high-frequency coils 131 and the second high-frequency coils 132 are respectively disposed on opposite sides of the conveying assembly 11 along the first direction, and both the first high-frequency coils 131 and the second high-frequency coils 132 are configured to generate eddy currents through electromagnetic induction and heat the battery cell 10 that moves into its induction area, wherein the first direction intersects with the conveying direction of the conveying assembly 11.
[0083] The first direction in this embodiment is as follows: Figure 1 The up and down directions in the middle.
[0084] This embodiment may include one or two sets of first high-frequency coils 131, one or two sets of second high-frequency coils 132, etc. The specific ones can be determined according to the actual situation, and this specification does not limit them in this way.
[0085] In use, the eddy current effect generated by the high-frequency coils achieves internal heating of the battery cell 10, resulting in rapid temperature rise. This meets the high-speed conveying cycle of the conveying assembly 11, improving production efficiency. Furthermore, the high-frequency coils have a compact structure and can be directly arranged along the conveying direction, eliminating the need for large ovens, reducing equipment size, and facilitating continuous production on the production line. Simultaneously, the placement of the first high-frequency coil 131 and the second high-frequency coil 132 on the upper and lower sides of the conveying assembly 11 ensures uniform heating along the thickness direction of the battery cell 10, effectively solving the temperature difference problem inside and outside the core package caused by traditional heating methods and guaranteeing consistent pre-densification effects. Moreover, the first high-frequency coil 131 and the second high-frequency coil 132 heat the battery cell 10 using a non-contact heating method, thus avoiding dust contamination caused by physical friction.
[0086] According to some embodiments of this application, the hot pressing device further includes a mounting frame and a height adjustment member (not shown in the figure). The first high-frequency coil 131 and the second high-frequency coil 132 are both connected to the mounting frame through the height adjustment member. The height adjustment member is configured to adjust the distance between the first high-frequency coil 131, the second high-frequency coil 132 and the conveying assembly 11, respectively.
[0087] In this embodiment, the height adjustment component can be a pneumatic rod, an electric telescopic rod, etc., and is not limited here.
[0088] In this embodiment, both the first high-frequency coil 131 and the second high-frequency coil 132 can be connected to the height adjustment component by bolts, and the height adjustment component is then connected to the mounting bracket by bolts.
[0089] In use, the distance between the first high-frequency coil 131 and the second high-frequency coil 132 and the conveying component 11 can be adjusted by the height adjustment component, thereby compensating for the distance difference caused by different thicknesses of the battery cells 10, so that the whole device can be compatible with the pre-densification processing of various specifications of battery cells 10; at the same time, by adjusting the distance between the high-frequency coil and the surface of the battery cell 10 to the optimal value of the process, the electromagnetic induction coupling efficiency of different batches and different thicknesses of battery cells 10 can be guaranteed to be consistent, thereby ensuring the stability of the heating temperature and solving the problem of uneven heating caused by the difference in the thickness of the battery cells 10.
[0090] According to some embodiments of this application, such as Figure 3 and combined Figure 4As shown, the hot pressing device also includes a base 16, and the pressurizing assembly 14 includes a first driving member 141, a support plate 142, a support rod 143, a top plate 144, a second driving member 145, and a pressure plate 147. The first driving member 141 is fixed to the base 16 and connected to the support plate 142. One end of the support rod 143 is fixed to the base 16, and the other end of the support rod 143 is connected to the top plate 144. The second driving member 145 is connected to the side of the top plate 144 facing the support plate 142 and is connected to the pressure plate 147. The first driving member 141 is configured to drive the support plate 142 closer to or away from the pressure plate 147, and the second driving member 145 is configured to drive the pressure plate 147 closer to or away from the support plate 142.
[0091] In this embodiment, the first driving component 141 and the second driving component 145 can both be cylinders, electric telescopic rods, etc., and there is no limitation here.
[0092] In this embodiment, the first driving member 141 is bolted to the upper surface of the base 16, and the telescopic end of the first driving member 141 is bolted to the support plate 142. The lower end of the support rod 143 is secured to the upper surface of the base 16, and the upper end of the support rod 143 is engaged with the top plate 144. The second driving member 145 is bolted to the side of the top plate 144 facing the support plate 142, and the telescopic end of the second driving member 145 is connected to the pressure plate 147. It is understood that the above components can also be connected by other structures, which are not limited here.
[0093] In use, when the heated cell 10 is transferred between the support plate 142 and the pressure plate 147, the first driving member 141 drives the support plate 142 to approach the pressure plate 147, and the second driving member 145 drives the pressure plate 147 to approach the support plate 142. After the pressure plate 147 and the support plate 142 contact the upper and lower sides of the cell 10 respectively, the pressure plate 147 and the support plate 142 continue to approach each other, thereby applying pressure to the heated cell 10.
[0094] It should be noted that the structure of the pressurizing component described above is merely an example. Other alternative structures can also be used. For instance, the pressurizing component may also include a lifting frame, which adjusts the height of the base to accommodate different workstation heights. This application does not impose any special restrictions on the specific structure of the pressurizing component, as long as the aforementioned structure achieves the purpose of this application.
[0095] According to some embodiments of this application, such as Figure 3 or Figure 4As shown, the pressurizing assembly 14 also includes a first guide rod 146, one end of which is connected to the side of the pressure plate 147 facing the top plate 144, and the other end of which passes through the top plate 144, and the first guide rod 146 is axially movable relative to the top plate 144.
[0096] In this embodiment, a through hole is provided on the top plate 144 along the vertical direction, and a bearing is installed in the through hole. The lower end of the first guide rod 146 is fixedly connected to the pressure plate 147, and the upper end of the first guide rod 146 extends out of the upper surface of the top plate 144 after passing through the corresponding bearing.
[0097] In use, when the second driving member 145 drives the pressure plate 147 to approach or move away from the support plate 142, since the pressure plate 147 is connected to the first guide rod 146, the pressure plate 147 can be ensured to move axially under the constraint of the first guide rod 146, thus preventing the pressure plate 147 from tilting when it approaches the support plate 142.
[0098] According to some embodiments of this application, such as Figure 3 and combined Figure 4 As shown, the pressurizing assembly 14 also includes a connector 148 and a second guide rod 149. The connector 148 is fixed to the support plate 142, one end of the second guide rod 149 is fixed to the base 16, the other end of the second guide rod 149 passes through the connector 148, and the second guide rod 149 can move axially relative to the connector 148.
[0099] In this embodiment, the connector 148 can be a bearing, but this is not a limitation.
[0100] In this embodiment, the connecting arm 1421 of the support plate 142 is provided with a through hole in the vertical direction, the connector 148 is fixed in the corresponding through hole, the lower end of the second guide rod 149 is fixed on the base 16, and the upper end of the second guide rod 149 passes through the connector 148.
[0101] In use, when the first driving member 141 drives the support plate 142 to approach or move away from the pressure plate 147, since the support plate 142 is connected to the second guide rod 149, the support plate 142 can be ensured to move axially under the constraint of the second guide rod 149, thus preventing the support plate 142 from tilting when it approaches the pressure plate 147.
[0102] According to some embodiments of this application, such as Figure 3 As shown, a heat dissipation groove 1471 is provided on the side of the pressure plate 147 facing the top plate 144.
[0103] In this way, when the heated cell 10 is located between the support plate 142 and the pressure plate 147, the heat dissipation groove 1471 on the pressure plate 147 is conducive to the heat dissipation of the cell 10, thereby achieving the purpose of cooling the cell 10.
[0104] According to some embodiments of this application, the pressurization assembly 14 also includes a detection element (not shown in the figure) connected to the pressure plate 147, which is configured to detect the pressure between the pressure plate 147 and the support plate 142.
[0105] The detection component in this embodiment can be a pressure sensor, etc., and is not limited here. The detection component can be bolted to the pressure plate 147.
[0106] During use, the pressure between the pressure plate 147 and the support plate 142 is detected by the detection component to prevent excessive pressure between the pressure plate 147 and the support plate 142 from damaging the battery cell 10.
[0107] According to some embodiments of this application, the pressurization assembly 14 also includes a timer (not shown) fixed to the top plate 144.
[0108] When using it, the timer can be used to easily record the pressurization time, so as to avoid the pressurization time being too short or too long, which would affect the pressurization effect.
[0109] According to some embodiments of this application, such as Figure 3 As shown, the hot pressing device also includes a heat sink 15, which is adapted to the battery cell 10 clamped between the support plate 142 and the pressure plate 147.
[0110] In this embodiment, the heat sink 15 can be a fan, blower, etc., and there is no limitation here.
[0111] When in use, after the heat on the battery cell 10 is transferred to the heat sink 1471, the heat absorbed by the heat sink 1471 is dissipated by the heat sink 15, which allows the battery cell 10 to cool down quickly.
[0112] According to some embodiments of this application, such as Figure 3 The hot pressing device shown also includes a third drive member 17, which is connected to the base 16 and is configured to move the base 16 toward or away from the conveying assembly 11.
[0113] In this embodiment, the third drive component 17 can be a linear module, an electric telescopic rod, etc., and is not limited here. The third drive component 17 can be connected to the base 16 by bolts.
[0114] In use, the third driving component 17 drives the base 16 to approach the conveying component 11. Since the pressurizing component 14 is set on the base 16, the third driving component 17 can synchronously drive the pressurizing component 14 to approach the conveying component 11, thereby facilitating the transfer of the heated battery cell 10 to the pressurizing component 14.
[0115] According to some embodiments of this application, such as Figure 5As shown, the hot pressing device also includes a clamping assembly 18 adapted to the conveying assembly 11, and the clamping assembly 18 is configured to transfer the heated battery cell 10 to the support plate 142.
[0116] In this embodiment, the clamping component 18 can be a mechanical gripper, an industrial robot, etc., and is not limited here.
[0117] In use, when the heated battery cell 10 is conveyed to the end of the conveying assembly 11, the corresponding battery cell can be clamped by the clamping assembly 18 and transferred to the pressurizing assembly 14.
[0118] According to some embodiments of this application, such as Figure 5 As shown, the clamping assembly 18 includes a fixed base 181, a first clamping plate 183, a second clamping plate 184, and a fourth driving member 185. The second clamping plate 184 and the fourth driving member 185 are both fixed to the fixed base 181, and the fourth driving member 185 is connected to the first clamping plate 183. The fourth driving member 185 is configured to drive the first clamping plate 183 to move closer to or away from the second clamping plate 184.
[0119] In this embodiment, the fourth driving component 185 can be a cylinder, an electric telescopic rod, etc., and is not limited here.
[0120] In this embodiment, the second clamping plate 184 and the fourth driving member 185 can both be bolted to the fixed base 181. At the same time, the telescopic end of the fourth driving member 185 is connected to the first clamping plate 183 by bolts. The fourth driving member 185 can drive the first clamping plate 183 to move closer to or away from the second clamping plate 184.
[0121] In use, the corresponding battery cell 10 is held by the interaction of the first clamping plate 183 and the second clamping plate 184. Under the interaction of the first clamping plate 183 and the second clamping plate 184, the battery cell 10 can be kept in a fixed state during transfer.
[0122] It should be noted that the structure of the clamping assembly described above is merely an example. Other alternative structures can also be used, for example, the clamping assembly may also include a cylinder connected to the second clamping plate. This application does not impose any special restrictions on the specific structure of the clamping assembly, as long as the above structure can achieve the purpose of this application.
[0123] According to some embodiments of this application, such as Figure 5 As shown, the clamping assembly 18 also includes a sensor 186, which is disposed on the first clamping plate 183, and / or, the sensor 186 is disposed on the second clamping plate 184.
[0124] In this embodiment, the sensor 186 can be a cell presence sensor, an infrared detector, etc., and is not limited thereto. The sensor 186 can be bolted to the first clamping plate 183, or bolted to the second clamping plate 184, or both the first clamping plate 183 and the second clamping plate 184 can be connected to the sensor 186. For ease of explanation, the following description will use the example of the sensor 186 being connected to the first clamping plate 183.
[0125] During use, the sensor 186 can easily sense whether the battery cell 10 is clamped between the first clamping plate 183 and the second clamping plate 184.
[0126] According to some embodiments of this application, such as Figure 5 As shown, a guide rail 182 is provided on the fixed base 181, wherein a sliding groove is provided at the end of the first clamping plate 183 facing the fixed base 181, and the sliding groove cooperates with the guide rail 182.
[0127] In this embodiment, the guide rail 182 extends vertically, and the groove on the first clamping plate 183 engages with the corresponding guide rail 182. During use, limited by the engagement of the guide rail 182 and the groove, when the fourth driving member 185 moves the first clamping plate 183 towards the second clamping plate 184, it can only move along the direction of the guide rail 182, preventing it from shifting and affecting the clamping effect.
[0128] According to some embodiments of this application, such as Figure 6 As shown, the hot pressing device also includes a flexible pad 19, which is disposed on the side of the first clamping plate 183 facing the second clamping plate 184, and / or, the flexible pad 19 is disposed on the side of the second clamping plate 184 facing the first clamping plate 183.
[0129] In this embodiment, the flexible pad 19 can be a rubber pad, a silicone pad, etc., and there is no limitation here.
[0130] In this embodiment, the flexible pad 19 may be adhered only to the first clamping plate 183, or the flexible pad 19 may be adhered only to the second clamping plate 184, or the flexible pad 19 may be adhered to both the first clamping plate 183 and the second clamping plate 184. For ease of explanation, the following description will use the example of the flexible pad 19 being adhered to both the first clamping plate 183 and the second clamping plate 184.
[0131] When in use, after the first clamping plate 183 and the second clamping plate 184 clamp the corresponding battery cell 10, the upper and lower surfaces of the battery cell 10 are in contact with the flexible pad 19, which can avoid damage to the surface of the battery cell 10.
[0132] According to some embodiments of this application, the flexible pad 19 is detachably connected to the first clamping plate 183, and / or the flexible pad 19 is detachably connected to the second clamping plate 184.
[0133] In this embodiment, the flexible pad 19 can be snapped onto the corresponding first clamping plate 183 and second clamping plate 184. (See reference) Figure 6 As shown, the flexible pad 19 is provided with protrusions, and the first clamping plate 183 and the second clamping plate 184 are provided with corresponding slots. The flexible pad 19 can be connected to the first clamping plate 183 and the second clamping plate 184 by the cooperation of the protrusions and the slots.
[0134] When in use, since the flexible pad 19 is snapped onto the corresponding first clamping plate 183 and second clamping plate 184, it is easy to replace the flexible pad 19 when it is damaged.
[0135] According to some embodiments of this application, the hot pressing device further includes a temperature detection element and a controller (not shown in the figure), wherein the temperature detection element is adapted to the electromagnetic heating assembly 13 and is configured to detect the heating temperature of the battery cell 10; the controller is electrically connected to the temperature detection element and the electromagnetic heating assembly 13 respectively, and is configured to adjust the output power of the electromagnetic heating assembly 13 according to the detection data of the temperature detection element.
[0136] In this embodiment, the temperature detection device can be a temperature sensor, and the controller can be a PLC controller; there are no limitations on this.
[0137] During use, the heating temperature of the battery cell 10 is detected by a temperature detection device. If the heating temperature is not up to standard, the output power of the electromagnetic heating component 13 can be adjusted by the controller to avoid the output power of the electromagnetic heating component 13 being too high or too low, which would affect the heating effect.
[0138] This application also proposes a battery production line, including a hot pressing device as described in any of the embodiments of this application.
[0139] The specific structure of the hot pressing device in this embodiment refers to the above embodiments. Since the battery production line adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0140] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A hot pressing device, characterized in that, include: The delivery assembly is configured to deliver battery cells; An electromagnetic heating assembly adapted to the conveying assembly, the electromagnetic heating assembly being configured to heat the electric cells on the conveying assembly; A pressurizing assembly is disposed at the end of the conveying assembly in the conveying direction, and the pressurizing assembly is configured to apply pressure to the heated battery cell; A carrier assembly, comprising a carrier plate and a limiting block, wherein the carrier plate is connected to the conveying assembly and the limiting block is disposed on the surface of the carrier plate; When the battery cell is placed on the support plate, the limiting block is configured to limit the position of the battery cell on the support plate.
2. The hot pressing device according to claim 1, characterized in that, The electromagnetic heating assembly includes at least one set of first high-frequency coils and at least one set of second high-frequency coils; The first high-frequency coil and the second high-frequency coil are respectively disposed on opposite sides of the conveying component along the first direction. Both the first high-frequency coil and the second high-frequency coil are configured to generate eddy currents through electromagnetic induction and heat the battery cell that moves into its induction area. The first direction intersects with the conveying direction of the conveying component.
3. The hot pressing device according to claim 2, characterized in that, The hot pressing device also includes a mounting frame and a height adjustment component, wherein the first high-frequency coil and the second high-frequency coil are both connected to the mounting frame through the height adjustment component; The height adjustment element is configured to adjust the distance between the first high-frequency coil, the second high-frequency coil and the conveying component, respectively.
4. The hot pressing device according to claim 1, characterized in that, The hot pressing device also includes a base, and the pressurizing assembly includes a first driving component, a support plate, a support rod, a top plate, a second driving component, and a pressure plate; The first driving component is fixed to the base, and the first driving component is connected to the support plate; One end of the support rod is fixed to the base, and the other end of the support rod is connected to the top plate. The second driving member is connected to the side of the top plate facing the support plate, and the second driving member is connected to the pressure plate. The first driving member is configured to move the support plate closer to or away from the pressure plate, and the second driving member is configured to move the pressure plate closer to or away from the support plate.
5. The hot pressing device according to claim 4, characterized in that, The pressurizing assembly further includes a first guide rod, one end of which is connected to the side of the pressure plate facing the top plate, the other end of which passes through the top plate, and the first guide rod is axially movable relative to the top plate.
6. The hot pressing device according to claim 4, characterized in that, The pressurization assembly also includes a connector and a second guide rod; The connector is fixed to the support plate, one end of the second guide rod is fixed to the base, the other end of the second guide rod passes through the connector, and the second guide rod can move axially relative to the connector.
7. The hot pressing device according to claim 4, characterized in that, The pressure plate has a heat dissipation groove on the side facing the top plate.
8. The hot pressing apparatus according to any one of claims 5 to 7, characterized in that, The pressurization assembly also includes a detection element connected to the pressure plate, the detection element being configured to detect the pressure between the pressure plate and the support plate.
9. The hot pressing apparatus according to any one of claims 5 to 7, characterized in that, The pressurization assembly also includes a timer, which is fixed to the top plate.
10. The hot pressing apparatus according to any one of claims 5 to 7, characterized in that, The hot pressing device also includes a heat sink, which is adapted to the battery cell clamped between the support plate and the pressure plate.
11. The hot pressing device according to claim 4, characterized in that, The hot pressing device further includes a third driving member connected to the base, the third driving member being configured to move the base closer to or away from the conveying assembly.
12. The hot pressing device according to claim 4, characterized in that, The hot pressing device further includes a clamping assembly adapted to the conveying assembly, the clamping assembly being configured to transfer the heated battery cell to the support plate.
13. The hot pressing apparatus according to claim 12, characterized in that, The clamping assembly includes a fixed base, a first clamping plate, a second clamping plate, and a fourth driving component; The second clamping plate and the fourth driving member are both fixed to the fixed base, and the fourth driving member is connected to the first clamping plate. The fourth driving member is configured to drive the first clamping plate to move closer to or away from the second clamping plate.
14. The hot pressing apparatus according to claim 13, characterized in that, The clamping assembly further includes a sensor disposed on the first clamping plate, and / or, the sensor disposed on the second clamping plate.
15. The hot pressing apparatus according to claim 13, characterized in that, The fixed base is provided with a guide rail, and the end of the first clamping plate facing the fixed base is provided with a sliding groove, which cooperates with the guide rail.
16. The hot pressing apparatus according to any one of claims 13 to 15, characterized in that, The hot pressing device further includes a flexible pad, which is disposed on the side of the first clamping plate facing the second clamping plate, and / or, The flexible pad is disposed on the side of the second clamping plate facing the first clamping plate.
17. The hot pressing apparatus according to claim 16, characterized in that, The flexible pad is detachably connected to the first clamping plate, and / or the flexible pad is detachably connected to the second clamping plate.
18. The hot pressing device according to claim 1, characterized in that, The hot pressing device further includes a temperature detection element and a controller. The temperature detection element is adapted to the electromagnetic heating assembly and is configured to detect the heating temperature of the battery cell. The controller is electrically connected to the temperature sensor and the electromagnetic heating assembly, respectively, and the controller is configured to adjust the output power of the electromagnetic heating assembly according to the detection data of the temperature sensor.
19. A battery production line, characterized in that, Includes the hot pressing apparatus as described in any one of claims 1 to 18.