Heating device for battery cell
By combining the three-plate heating structure and drive components, the problem of small heating contact area in existing battery cell baking equipment has been solved, resulting in shorter battery cell heating time and improved efficiency, while reducing equipment requirements and costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-03-20
AI Technical Summary
Existing battery cell baking equipment has a small heating contact area, resulting in long baking time, low efficiency, and high cost.
The device employs a three-plate heating structure, including a first heating plate, a second heating plate, and a third heating plate. The third heating plate is moved by a drive assembly to press the battery cell, thereby increasing the heating area and achieving heating of the bottom and sides of the battery cell.
This improves the heating efficiency of the battery cells, reduces heating time, and lowers equipment requirements and costs.
Smart Images
Figure CN224018675U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of battery cells, and in particular to a heating device for battery cells. BACKGROUND
[0002] In the related art, the new energy battery cell has a high requirement for moisture during the manufacturing process. Before the battery cell is filled with electrolyte, the battery cell needs to be high-temperature baked to dry the moisture in the pole piece. However, the existing battery cell baking generally adopts a bottom contact heating method, which has a small heating contact area, resulting in a baking time of 8 to 12 hours, and low baking efficiency. Therefore, a large number of baking oven devices are needed to heat the battery cell, increasing the cost. CONTENT OF THE UTILITY MODEL
[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present application is to provide a heating device for battery cells, which can reduce the heating time of the battery cell and improve the heating efficiency of the battery cell.
[0004] The heating device for battery cells according to the embodiments of the present application comprises: a first heating plate, which is formed with a heating surface on one side in a first direction; a second heating plate, which is located on the heating surface and connected with the first heating plate, and a free end of the second heating plate extends towards a direction away from the heating surface; and a third heating plate, which is arranged on the first heating plate and spaced apart from the second heating plate in a second direction to form a heating space suitable for accommodating a battery cell; wherein the third heating plate is selectively movable towards the second heating plate to press the battery cell.
[0005] The heating device for battery cells according to the embodiments of the present application has a first heating plate, a second heating plate and a third heating plate. The first heating plate can be used to support the battery cell. The second heating plate and the third heating plate can be arranged on the first heating plate. The third heating plate is movable towards the second heating plate to press the battery cell, so as to increase the heating area of the battery cell and ensure that the heating device can heat the bottom surface and the side surface of the battery cell, thereby improving the heating efficiency of the battery cell.
[0006] In some embodiments of the present application, the heating device further comprises a driving assembly, part of which is located on the heating surface, and the driving assembly is in abutment with the third heating plate. The driving assembly is selectively movable in the second direction to drive the third heating plate to move towards the second heating plate.
[0007] In some embodiments of the present application, the driving assembly comprises a driving shaft, at least a portion of the driving shaft is disposed on the heating surface and extends along the second direction, the driving shaft is selectively movable along the second direction; a driving part disposed on the driving shaft, the driving part is adapted to abut against one side of the third heating plate away from the second heating plate.
[0008] In some embodiments of the present application, a buffer is disposed between the driving part and the third heating plate.
[0009] In some embodiments of the present application, the buffer is configured as a spring.
[0010] In some embodiments of the present application, an end of the driving shaft along the second direction is provided with a handrail part.
[0011] In some embodiments of the present application, an outer surface of the driving shaft is provided with a first positioning part, and the heating surface is provided with a second positioning part matched with the first positioning part.
[0012] In some embodiments of the present application, the first positioning part is configured as one of a positioning pin and a positioning hole, the second positioning part is configured as the other one of the positioning pin and the positioning hole, and the positioning pin and the positioning hole are in a clamping fit.
[0013] In some embodiments of the present application, the second heating plate is a plurality of second heating plates, the plurality of second heating plates are disposed at intervals along the second direction, and the third heating plate is a plurality of third heating plates, the plurality of third heating plates are disposed in one-to-one correspondence with the plurality of second heating plates.
[0014] In some embodiments of the present application, the driving part is a plurality of driving parts, the plurality of driving parts are disposed in one-to-one correspondence with the plurality of third heating plates and abut against the plurality of third heating plates.
[0015] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS
[0016] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings.
[0017] Figure 1 is a schematic view of a structure of a heating device for a battery cell and the battery cell before being compressed according to an embodiment of the present application;
[0018] Figure 2 is a schematic view of a structure of a heating device for a battery cell and the battery cell before being compressed according to an embodiment of the present application; Figure 1 is a schematic view of a structure of a heating device for a battery cell and the battery cell before being compressed according to an embodiment of the present application;
[0019] Figure 3is a schematic structural view of a heating device for an electric core and the structure of the electric core after being compressed according to an embodiment of the present application;
[0020] Figure 4 is Figure 3 a side view schematic view.
[0021] Reference signs:
[0022] 10, heating device;
[0023] 11, first heating plate; 111, heating surface; 12, second heating plate; 13, third heating plate;
[0024] 14, driving assembly; 141, driving shaft; 1411, handrail part; 1412, first positioning part;
[0025] 142, driving part; 143, buffer; 20, electric core. DETAILED DESCRIPTION
[0026] The embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below are exemplary only, and are not intended to limit the present application.
[0027] The heating device 10 for the electric core 20 according to the embodiments of the present application is described below with reference to Figures 1-4 The heating device 10 for the electric core 20 according to the embodiments of the present application is described below with reference to
[0028] The second heating plate 12 is located on the heating surface 111 and connected with the first heating plate 11, and the free end of the second heating plate 12 extends towards the direction away from the heating surface 111.
[0029] The third heating plate 13 is arranged on the first heating plate 11 and spaced apart from the second heating plate 12 along the second direction to form a heating space suitable for accommodating the electric core 20.
[0030] The third heating plate 13 is arranged on the first heating plate 11 and spaced apart from the second heating plate 12 along the second direction to form a heating space suitable for accommodating the electric core 20.
[0031] At present, the new energy electric core has a higher requirement for moisture during the manufacturing process. Before the electric core is filled with electrolyte, the electric core needs to be high-temperature baked to dry the moisture in the pole piece. However, the existing electric core baking generally adopts a bottom contact type heating of the electric core, and the heating contact area is small, which leads to a baking time of generally 8 to 12 hours, and the baking efficiency is low. Therefore, a large number of baking oven devices are needed to heat the electric core, which increases the cost.
[0032] To this end, as shown in the specification, Figure 1 The application provides a heating device 10, which comprises a first heating plate 11, a second heating plate 12 and a third heating plate 13. The first heating plate 11 can be provided with a heating surface 111 on one side in a first direction. It should be noted that the first direction can be the thickness direction of the first heating plate 11. The heating surface 111 can be in contact with the bottom surface of the battery cell 20, thereby achieving the effect of heating the bottom surface of the battery cell 20.
[0033] Further, as shown in the specification, Figure 2 The second heating plate 12 can be located on the heating surface 111, and the second heating plate 12 can be connected with the first heating plate 11. Optionally, the second heating plate 12 and the first heating plate 11 can be detachably connected through screws or bolts, or the second heating plate 12 and the first heating plate 11 can be detachably connected through plug-in or clamping. The free end of the second heating plate 12 can extend away from the heating surface 111, and the second heating plate 12 can heat one side of the battery cell 20.
[0034] As shown in the specification, Figure 1 and Figure 3 The third heating plate 13 can be provided on the first heating plate 11, and the third heating plate 13 can be spaced apart from the second heating plate 12 in a second direction, thereby defining a heating space between the second heating plate 12 and the third heating plate 13. The heating space can be used to accommodate the battery cell 20. The third heating plate 13 can abut against the other side of the battery cell 20, thereby achieving the effect of heating the battery cell 20. Optionally, the third heating plate 13 can move towards the second heating plate 12 to achieve the effect of pressing the battery cell 20. It can be understood that by moving the third heating plate 13 towards the second heating plate 12 to limit the battery cell 20, the battery cell 20 can be completely attached to the second heating plate 12 and the third heating plate 13, so as to increase the heating area of the battery cell 20 and improve the heating efficiency of the battery cell 20. The dimensions of the second heating plate 12 and the third heating plate 13 in the first direction can be designed according to the size of the battery cell 20.
[0035] In short, the heating device 10 of the embodiment of the application has a first heating plate 11, a second heating plate 12 and a third heating plate 13. The first heating plate 11 can be used to support the battery cell 20. The second heating plate 12 and the third heating plate 13 can be provided on the first heating plate 11, and the third heating plate 13 can move towards the second heating plate 12 to press the battery cell 20, so as to increase the heating area of the battery cell 20. The heating device 10 can heat the bottom surface and the side surface of the battery cell 20, thereby improving the heating efficiency of the battery cell 20.
[0036] AsFigures 1 to 4 As shown, in some embodiments of this application, the heating device 10 may further include a driving component 14. A portion of the driving component 14 may be located on the heating surface 111, and the driving component 14 may abut against the third heating plate 13. The driving component 14 may move along the second direction. When the driving component 14 moves towards the second heating plate 12 along the second direction, it may drive the third heating plate 13 to move synchronously, so that the third heating plate 13 approaches the second heating plate 12 and abuts against the battery cell 20, thereby achieving the positioning of the battery cell 20 and increasing the contact area between the battery cell 20 and the heating plate. By setting the driving component 14, the position of the third heating plate 13 can be easily adjusted, making it highly applicable.
[0037] like Figures 1 to 4 As shown, in some embodiments of this application, the drive assembly 14 may include a drive shaft 141 and a drive part 142. At least a portion of the drive shaft 141 may be disposed on the heating surface 111, and the drive shaft 141 may extend along a second direction. In some embodiments, the second direction may be orthogonal to the first direction, and the drive shaft 141 may be movable along the second direction. The drive part 142 may be disposed on the drive shaft 141. Optionally, the drive part 142 and the drive shaft 141 may be detachably connected by screws or bolts, or the drive part 142 may be detachably connected by screws or bolts. The drive unit 142 and the drive shaft 141 can be detachably connected by snap-fit or plug-in, or the drive unit 142 and the drive shaft 141 can be constructed as an integral structure. The drive unit 142 is located on the outer surface of the drive shaft 141. The drive unit 142 can abut against the side of the third heating plate 13 away from the second heating plate 12. During the movement of the drive shaft 141, the drive unit 142 can move synchronously with the drive shaft 141. The drive unit 142 drives the third heating plate 13 to move, thereby realizing the function of abutting the third heating plate 13 against the battery cell 20.
[0038] like Figure 1 As shown, in some embodiments of this application, a buffer 143 may be provided between the driving part 142 and the third heating plate 13. The buffer 143 can prevent the driving part 142 from colliding with the third heating plate 13 during movement, which would cause damage to the third heating plate 13. It is understood that one end of the buffer 143 can abut against the driving part 142, and the other end of the buffer 143 can abut against the third heating plate 13. When the driving part 142 moves toward the third heating plate 13, the buffer 143 can absorb part of the impact force through deformation and contraction. In some embodiments, the buffer 143 can be constructed as a spring, which can be a helical spring, a disc spring, or a ring spring, etc., but is not limited to these. The buffer 143 can also be an elastic structure such as a sponge or a rubber ring.
[0039] like Figure 3 and Figure 4As shown, in some embodiments of this application, a handrail portion 1411 may be provided at one end of the drive shaft 141 along the second direction. Along a plane perpendicular to the second direction, the projection of the drive shaft 141 may be located inside the projection of the handrail portion 1411. The handrail portion 1411 facilitates the movement of the drive shaft 141. Optionally, the handrail portion 1411 and the drive shaft 141 may be detachably connected by screws or bolts, or they may be detachably connected by snap-fit or plug-in connection, or they may be directly welded together at the contact surface. In some embodiments, the outer surface of the handrail portion 1411 may have threaded protrusions to increase friction and facilitate operator operation, or the handrail portion 1411 may be connected to a drive device such as a motor to achieve automated control.
[0040] like Figure 2 and Figure 4 As shown, in some embodiments of this application, the outer surface of the drive shaft 141 may be provided with a first positioning part 1412, and the heating surface 111 may be provided with a second positioning part. The second positioning part can cooperate with the first positioning part 1412, thereby locking the drive shaft 141 after the third heating plate 13 and the battery cell 20 are pressed together. Further, the first positioning part 1412 is constructed as one of a positioning pin and a positioning hole, and the second positioning part is constructed as the other of a positioning pin and a positioning hole. The positioning pin is engaged with the positioning hole. By engaging the positioning pin with the positioning hole, the positioning pin is housed in the positioning hole, and the outer surface of the positioning pin abuts against the inner surface of the positioning hole to restrict the movement of the positioning pin, thereby locking the drive shaft 141.
[0041] like Figures 1 to 4 As shown, in some embodiments of this application, multiple second heating plates 12 can be constructed, and multiple second heating plates 12 can be spaced apart along a second direction. Each of the multiple second heating plates 12 is fixedly connected to the first heating plate 11. Multiple third heating plates 13 can be constructed, and multiple third heating plates 13 can be arranged one-to-one with multiple second heating plates 12. The driving device can simultaneously drive multiple third heating plates 13 to move toward the corresponding second heating plate 12 to press multiple battery cells 20. It is understood that multiple driving units 142 can be constructed, and multiple driving units 142 can be arranged one-to-one with and abut against multiple third heating plates 13. By providing multiple second heating plates 12 and multiple third heating plates 13, the heating device 10 can simultaneously heat multiple battery cells 20, thereby improving the heating efficiency of the battery cells 20.
[0042] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0043] In the description of the present application, "first feature" and "second feature" can include one or more of the features.
[0044] In the description of the present application, "a plurality of" means two or more.
[0045] In the description of the present application, "above" or "below" the first feature of the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them.
[0046] In the description of the present application, "above", "over" and "on" the first feature of the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height.
[0047] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0048] Although embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.
Claims
1. A heating device for battery cells, characterized in that, include: A first heating plate, wherein a heating surface is formed on one side along a first direction; A second heating plate is located on the heating surface and connected to the first heating plate, with the free end of the second heating plate extending away from the heating surface. The third heating plate is disposed on the first heating plate and spaced apart from the second heating plate along the second direction to form a heating space suitable for accommodating the battery cell; The third heating plate can be selectively moved toward the second heating plate to press the battery cell together.
2. The heating device for battery cells according to claim 1, characterized in that, Also includes: A driving assembly, a portion of which is located on the heating surface, abuts against the third heating plate, and is selectively movable along the second direction to drive the third heating plate toward the second heating plate.
3. The heating device for battery cells according to claim 2, characterized in that, The driving component includes: A drive shaft, at least a portion of which is disposed on the heating surface and extends along the second direction, the drive shaft being selectively movable along the second direction; A driving unit is disposed on the driving shaft and is adapted to abut against the side of the third heating plate away from the second heating plate.
4. The heating device for battery cells according to claim 3, characterized in that, A buffer is provided between the driving unit and the third heating plate.
5. The heating device for battery cells according to claim 4, characterized in that, The buffer is constructed as a spring.
6. The heating device for battery cells according to claim 3, characterized in that, A handrail is provided at one end of the drive shaft along the second direction.
7. The heating device for battery cells according to claim 3, characterized in that, The outer surface of the drive shaft is provided with a first positioning part, and the heating surface is provided with a second positioning part that cooperates with the first positioning part.
8. The heating device for battery cells according to claim 7, characterized in that, The first positioning part is constructed as one of a positioning pin and a positioning hole, and the second positioning part is constructed as the other of the positioning pin and the positioning hole, wherein the positioning pin is engaged with the positioning hole.
9. The heating device for battery cells according to claim 3, characterized in that, There are multiple second heating plates, which are spaced apart along the second direction. There are also multiple third heating plates, which are arranged in a one-to-one correspondence with the multiple second heating plates.
10. The heating device for a battery cell according to claim 9, characterized in that, There are multiple driving units, and each of the multiple driving units is arranged and abuts against the multiple third heating plates.