Battery heating and drying device
By using a top-to-bottom contact heating method, heat is transferred through a heating plate that directly contacts the bottom of the battery clamp and the terminal post, solving the problems of low battery heating efficiency and uneven heating in existing technologies, thereby shortening battery heating time and improving production efficiency.
Patent Information
- Application Number
- CN202423098607.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing battery heating and drying methods are inefficient and can easily lead to uneven heating at the bottom and top of the battery, requiring a baking time of 8 to 12 hours.
The heating method is a top-to-bottom contact heating method. Heat is transferred through the heating plate that is in direct contact with the bottom of the battery clamp and the terminal post, which shortens the heating path. Support rods and elastic devices are used to maintain stable contact between the heating plate and the battery.
It shortens the battery heating time, improves production efficiency, ensures uniform battery heating, is suitable for batteries of different heights, and saves costs.
Smart Images
Figure CN223807491U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to battery technology field, especially relate to a battery heating drying device. BACKGROUND
[0002] At present, the heating drying mode of battery is usually bottom contact heating + top heat radiation heating, that is, a heating plate is arranged at the bottom of the battery, the battery contacts the heating plate to realize heat conduction, the heat of the bottom heat dissipation is radiated to the battery through the top reflector, and finally the heat is transmitted to the battery pole piece by the pole. The above heating mode often needs 8-12H baking time, which is not only low in efficiency, but also easy to cause uneven heating of the bottom and top of the battery. SUMMARY
[0003] The utility model provides a battery heating drying device, can shorten the baking time of battery, promotes production efficiency.
[0004] The utility model provides a battery heating drying device, including drying case and the battery clamp and heating assembly in drying case,
[0005] The battery clamp is used for placing and fixing the battery,
[0006] The heating assembly includes at least two heating plates, the at least two heating plates are arranged along the height direction of the battery, and any two adjacent heating plates are spaced apart, so that a containing space is formed between the two adjacent heating plates, and the battery clamp is located in the containing space.
[0007] The heating assembly further includes a support rod arranged between any two adjacent heating plates, one end of the support rod is connected with the heating plate at the top end of the battery clamp through an elastic device.
[0008] Among the two adjacent heating plates, one of the heating plates contacts the bottom of the battery clamp, and the other heating plate is used for contacting the pole of the battery placed in the battery clamp.
[0009] The battery heating and drying device provided by the utility model is provided with heating plates on both sides of the battery clamp, support rods and elastic devices are arranged between the two heating plates, so that the two heating plates are in direct contact with the bottom of the battery clamp and the pole of the battery in the battery clamp respectively. When the battery is baked, the heating plate at the lower side generates heat, which is transmitted to the battery clamp, and then transmitted to the bottom of the battery through the battery clamp. The heating plate at the upper side generates heat, which is transmitted to the pole of the battery, and then transmitted to the pole piece through the pole. Compared with the heating mode of heat radiation, the battery heating and drying device in the utility model can shorten the heating path of the battery and improve the preheating efficiency, so that the baking time can be shortened and the production efficiency can be improved. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 It is a structural schematic view of the battery heating and drying device in the embodiment of the utility model;
[0011] Figure 2 It is a structural schematic view of the heating assembly in the embodiment of the utility model;
[0012] Figure 3 It is another structural schematic view of the heating assembly in the embodiment of the utility model;
[0013] Figure 4 It is a structural schematic view of the heating plate connected to the moving device in the embodiment of the utility model.
[0014] In the drawings:
[0015] 10 - battery; 11 - pole; 100 - drying box; 110 - box body; 120 - box door; 200 - heating assembly; 210, 210a, 210b, 210c - heating plate; 220, 220a, 230b - support rod; 230, 230a, 230b - elastic device; 240 - first heat-conducting plate; 250 - second heat-conducting plate; 300, 300a, 300b - battery clamp; 400 - moving device; 410 - guide rail; 420 - sliding block. DETAILED DESCRIPTION
[0016] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0017] Reference Figure 1 And Figure 2The battery heating and drying device in the embodiment of the utility model can include drying box 100, battery clamp 300 and heating assembly 200, wherein battery clamp 300 and heating assembly 200 are both located in drying box 100.Drying box 100 can include box body 110 and box door 120, and box door 120 is rotatably connected to box body 110, so that box body 110 is in communication with the outside or box body 110 is isolated from the outside.
[0018] The drying box 100 in the embodiment can be a vacuum drying box, for example, and when the battery is heated and baked using the vacuum drying box, the temperature in the vacuum drying box can be kept stable, thereby improving the efficiency of baking the battery.
[0019] The battery clamp 300 can be used to place and fix the battery 10, and the heating assembly 200 is used to heat and bake the battery 10 placed in the battery clamp 300.It can be understood that when the box door 120 is opened, the battery 10 can be placed in the battery clamp 300, and when the box door 120 is closed, the battery 10 can be baked.
[0020] As shown in Figure 2 The heating assembly 200 can include at least two heating plates 210, and the at least two heating plates 210 can be arranged along the height direction of the battery 10. Any two adjacent heating plates 210 can be spaced apart to form a containing space between any two adjacent heating plates 210, and the battery clamp 300 can be located in the containing space to heat and bake the battery 10 by the upper and lower heating plates 210.
[0021] The heating assembly 200 further includes a support rod 220, which is arranged between the two adjacent heating plates 210 to support the upper heating plate 210, so that the two adjacent heating plates 210 remain relatively fixed during operation. When the battery clamp 300 is placed between the two adjacent heating plates 210, the bottom of the battery clamp 300 can be in contact with the lower heating plate 210, and the upper heating plate 210 can be in contact with the pole 11 of the battery 10 placed in the battery clamp 300.
[0022] When the battery 10 is heated and baked, the lower heating plate 210 generates heat, which can be transmitted to the bottom of the battery 10 through the battery clamp 300. The upper heating plate 210 generates heat, which can be transmitted to the pole 11 of the battery 10 through the heating plate 210. Thus, in the embodiment, the two heating plates 210 are used to simultaneously transmit heat to the bottom and the pole 11 of the battery 10 by contact, which can shorten the heating path compared to the heat radiation heating method, thereby shortening the baking time and improving the production efficiency.
[0023] In addition, it is worth noting that the device in the embodiment can heat the square lithium battery 10, and the materials of the positive and negative poles of the battery 10 are copper foil and aluminum foil respectively. When the heating plate 210 is in contact with the pole 11 of the battery 10, the heat is directly transferred to the positive and negative poles. Since the thermal conductivity of copper foil is stronger than that of aluminum foil, the copper foil can transfer heat to the pole more quickly, so that the temperature of the pole is increased to a certain extent. When the aluminum foil subsequently transfers heat to the pole, the temperature difference between the pole and the aluminum foil is reduced, so that the pole is heated more evenly. Therefore, it can be understood that the direct contact between the heating plate 210 and the pole 11 of the battery 10 in the embodiment can preheat the battery 10 and ensure that the battery 10 is heated evenly.
[0024] With reference to Figure 2 The height of the support rod 220 is less than the distance between the two adjacent heating plates 210, and one end of the support rod 220 can be connected to the heating plate 210 at the top end of the battery clamp 300 through the elastic device 230. When the battery 10 is placed in the battery clamp 300, the heating plate 210 can compress the elastic device 230 under the action of its own gravity, so that the heating plate 210 can be in contact with the pole 11 of the battery 10. During the baking process of the battery 10, the elastic device 230 is always in a compressed state, so as to generate elastic potential energy, which has the effect of driving the heating plate 210 to move away from the battery 10, so as to upwardly push the heating plate 210, so as to ensure that the heating plate 210 only contacts the pole 11 and does not press on the pole 11 as a whole, thereby avoiding damage to the pole 11 due to excessive force.
[0025] Alternatively, when the battery 10 is relatively high, the battery 10 can upwardly push the upper heating plate 210, and at this time, the elastic device 230 is in a stretched state. Since the elastic device 230 can exert a downward force on the heating plate 210, the heating plate 210 can be tightly attached to the surface of the pole 11 of the battery 10, so that heat can be better transferred.
[0026] For example, the elastic device 230 can be a spring.
[0027] In the embodiment, when the batteries 10 with different heights are placed in the battery clamp 300, the heating plates 210 above the battery clamp 300 compress the elastic devices 230 downward, and the deformation amounts of the elastic devices 230 are different. As long as the elastic devices 230 are elastically deformed, the elastic devices 230 can support and fix the heating plates 210 by themselves, so as to ensure that the adjacent two heating plates 210 are relatively fixed during the baking process, and the heating plates 210 can stably contact the pole posts 11 of the batteries 10. That is, the battery heating and drying device in the embodiment can be applied to the batteries 10 with different heights, and the work of replacing different heating assemblies 200 for different specifications of the batteries 10 is saved, which is beneficial to saving the cost.
[0028] In addition, the height of the battery 10 can be greater than or equal to the height of the battery clamp 300, so that the pole post 11 of the battery 10 can be flush with the top of the battery clamp 300, or at least a part of the pole post 11 of the battery 10 can protrude from the battery clamp 300. Therefore, the heating plates 210 can effectively contact the pole posts 11 of the batteries 10, so as to transfer heat.
[0029] In order to enable the support rods 220 to stably support the heating plates 210, the support rods 220 between the adjacent two heating plates 210 can be multiple, and the multiple support rods 220 are distributed at different positions of the heating plates 210. Specifically, the support rods 220 can be connected to the end portions of the heating plates 210, so as to avoid interference with the battery clamp 300. For example, when the heating plates 210 are square structures, four support rods 220 can be arranged at the four corners of the heating plates 210, so that the heating plates 210 are balanced in force, and the horizontal placement of the heating plates 210 is ensured, and the heating plates 210 cannot contact the pole posts 11 of one or more batteries 10 due to inclination.
[0030] The support rods 220 and the heating plates 210 below can be fixedly connected, so as to relatively fix the support rods 220 and the heating plates 210 below, and further improve the structural stability of the heating assembly 200 as a whole.
[0031] As described above, the heating plates 210 are at least two, and in actual application, the heating plates 210 can be two, three, four, and the like.
[0032] In some embodiments, as described above, Figure 2As shown, when the heating plates 210 are two, the upper heating plate 210 is in a floating state, which can float up and down along the height of the battery 10 relative to the lower heating plate 210. At this time, the battery clamp 300 is placed on the lower heating plate 210, and since the lower heating plate 210 is relatively fixed with the vacuum oven, the battery clamp 300 can be kept relatively fixed with the vacuum oven during the baking process.
[0033] In other embodiments, with reference to Figure 3 When the heating plates 210 are three, the three heating plates 210 can cooperate to form two accommodation spaces, that is, the three heating plates 210 can be used to place two battery clamps 300. At this time, the bottom of the middle heating plate 210b can be connected to the lower support rod 220b through the elastic device 230, and the upper battery clamp 300a can also be placed on the middle heating plate 210b. During the baking process, the heat generated by the middle heating plate 210b can be transmitted not only to the upper battery clamp 300a but also to the pole 11 of the battery 10 in the lower battery clamp 300b.
[0034] In this embodiment, the middle heating plate 210b not only serves as a support structure for placing the battery clamp 300, but also serves as a heating structure for contacting the pole 11 of the battery 10. By arranging the stacked heating plates 210, the heating assembly 200 can simultaneously heat and bake multiple groups of batteries 10, thereby further improving production efficiency. Moreover, compared with two independent heating plates 210, the scheme in this embodiment can also reduce the number of heating plates 210, thereby saving space and cost.
[0035] It is worth noting that, as introduced in the above embodiments, when the heating plates 210 are three, the uppermost heating plate 210a and the middle heating plate 210b are both in a floating state, and the lowermost heating plate 210c is kept fixed with the drying box 100. Since the force of the middle heating plate 210b acting on the lower elastic device 230b is actually the weight of the middle heating plate 210b, the upper battery clamp 300a, the battery 10 in the battery clamp 300a, the support rod 220a, and the uppermost heating plate 210a, that is, the force of the middle heating plate 210b on the lower elastic device 230b is greater than the force of the uppermost heating plate 210a on the upper elastic device 230a. Based on this, when the elastic device 230 is arranged in this embodiment, the elastic coefficient of the lower elastic device 230b can be greater than that of the upper elastic device 230a, which can reduce the deformation amount of the lower elastic device 230b and avoid excessive deformation of the lower elastic device 230b due to excessive force, resulting in failure of the lower elastic device 230b.
[0036] Similarly, when the heating plate 210 is provided with four, five, etc., along the arrangement direction of the plurality of heating plates 210, in the adjacent two elastic devices 230, the elastic coefficient of the lower elastic device 230 can be greater than that of the upper elastic device 230, so as to avoid plastic deformation of each elastic device 230.
[0037] In some embodiments, with reference to Figure 2 or Figure 3 , in the adjacent two heating plates 210, the lower heating plate 210 towards the side of the battery clamp 300 can also be provided with a first heat-conducting plate 240, which can be in heat-conducting connection with the heating plate 210, and the battery clamp 300 is in contact with the first heat-conducting plate 240. At this time, the opposite sides of the first heat-conducting plate 240 are in contact with the heating plate 210 and the battery clamp 300 respectively, so as to improve the heat conduction efficiency between the heating plate 210 and the battery clamp 300 by setting the first heat-conducting plate 240, thereby further shortening the baking time of the battery 10 and improving the production efficiency.
[0038] The orthographic projection of the first heat-conducting plate 240 on the heating plate 210 can cover the orthographic projection of the battery clamp 300 on the heating plate 210, when the battery clamp 300 is placed on the first heat-conducting plate 240, the bottom plate of the battery clamp 300 can be in complete heat-conducting contact with the first heat-conducting plate 240, so as to ensure that each part of the battery clamp 300 is uniformly heated. When the battery clamp 300 transmits heat to each battery 10, it can ensure that the heat transmission between the battery clamp 300 and each battery 10 is uniform, thereby ensuring that each battery 10 is uniformly heated.
[0039] Similarly, in the adjacent two heating plates 210, the upper heating plate 210 towards the side of the battery clamp 300 can also be provided with a second heat-conducting plate 250, which can be in heat-conducting connection with the heating plate 210, and the second heat-conducting plate 250 is in direct contact with the pole 11 of the battery 10. By setting the second heat-conducting plate 250, the heat conduction efficiency between the heating plate 210 and the pole 11 of the battery 10 can be improved, thereby further shortening the baking time of the battery 10 and improving the production efficiency.
[0040] The orthographic projection of the second heat-conducting plate 250 on each heating plate 210 can cover the orthographic projection of the battery clamp 300 on the heating plate 210, so as to ensure that the second heat-conducting plate 250 can completely cover the battery 10 in the battery clamp 300, so as to ensure that the second heating plate 210 is in contact with the pole 11 of each battery 10, and the heat transmission between the second heat-conducting plate 250 and the pole 11 of each battery 10 is uniform, thereby ensuring that each battery 10 is uniformly heated.
[0041] In some embodiments, the heating plate 210 can be embedded with heating wires or heating films, and the heating plate 210 is connected to an external power source to energize the heating wires or heating films to generate heat.
[0042] Accordingly, the drying box 100 can be further provided with a temperature sensor (not shown in the figure) for detecting the temperature in the drying box 100 to control the on-off state of the external power source according to the temperature in the drying box 100.
[0043] In particular implementation, the temperature sensor can be multiple, and each temperature sensor can be arranged at different positions in the drying box 100. For example, the number of temperature sensors can be the same as the number of battery clamps 300, and the temperature sensors can be fixed to the inner wall of the drying box 100 and opposite to the position between two adjacent heating plates 210. At this time, the temperature sensor can be used to detect the temperature between two adjacent heating plates 210 to roughly obtain the temperature of the battery 10 in the battery clamp 300 to determine whether the battery 10 is baked.
[0044] In some embodiments, referring to Figure 4 , the drying box 100 can be further provided with a moving device 400 for driving the heating assembly 200 to move, and the moving direction of the heating assembly 200 is perpendicular to the height direction of the battery 10. When it is needed to put the battery 10 into the battery clamp 300, the box door 120 can be opened, and the heating assembly 200 is driven by the moving device 400 to move outward, so that at least a part of the heating assembly 200 can be located outside the box body 110 to put the battery 10 into the battery clamp 300. After the battery 10 is put in, the heating assembly 200 can also be driven by the moving device 400 to return to the inside of the box body 110.
[0045] In particular, the moving device 400 can include guide rails 410, for example, two guide rails 410 can be arranged in parallel. The lowermost heating plate 210 can be connected to the guide rail 410 through a sliding block 420 to move relative to the guide rail 410 through the sliding block 420. The two ends of the guide rail 410 can be further provided with limit blocks, and the limit blocks can be used to limit the sliding path of the sliding block 420 relative to the guide rail 410, so as to prevent the heating assembly 200 from falling out of the box body 110 when the heating assembly 200 is driven outward.
[0046] The moving device 400 can further include a motor, for example, to drive the sliding block 420 to move relative to the guide rail 410 to realize the movement of the heating assembly 200.
[0047] Of course, in other embodiments, the heating assembly 200 and the battery clamp 300 as a whole can also be taken out from the box 110, and after the battery 10 is placed in the battery clamp 300, the heating assembly 200 is sent back to the box 110 by a mechanical hand or the like.
[0048] Obviously, various modifications and changes can be made to the embodiments of the present application without departing from the spirit and scope of the present application. Thus, it is intended that the present application cover the modifications and changes as long as they come within the scope of the appended claims and their equivalents.
Claims
1. A battery heating drying apparatus, characterized by, The drying box and the battery clamp and the heating assembly located in the drying box; The battery clamp is used for placing and fixing the battery; The heating assembly comprises at least two heating plates arranged along the height direction of the battery, and any two adjacent heating plates are spaced apart to form a containing space between the two adjacent heating plates, and the battery clamp is located in the containing space. The heating assembly further comprises a support rod arranged between any two adjacent heating plates, one end of the support rod is connected with the heating plate at the top end of the battery clamp through elastic devices; Among the two adjacent heating plates, one of the heating plates is in contact with the bottom of the battery clamp, and the other heating plate is used for contacting the pole column of the battery placed in the battery clamp.
2. The battery heating drying apparatus according to claim 1, wherein The heating plate located at the bottom of the battery clamp is provided with a first heat-conducting plate on the side of the battery clamp, the first heat-conducting plate is in heat-conducting connection with the heating plate, and the battery clamp is in contact with the first heat-conducting plate.
3. The battery heating drying apparatus according to claim 2, wherein The first heat-conducting plate is in contact with the first heat-conducting plate.
4. The battery heating drying apparatus according to claim 1, wherein The heating plate located at the top end of the battery clamp is provided with a second heat-conducting plate on the side of the battery clamp, the second heat-conducting plate is in heat-conducting connection with the heating plate, and the second heat-conducting plate is in contact with the pole column of the battery placed in the battery clamp.
5. The battery heating drying apparatus according to claim 4, wherein The second heat-conducting plate is in contact with the second heat-conducting plate.
6. The battery heating drying apparatus according to claim 1, wherein Along the arrangement direction of the at least two heating plates, among any two adjacent support rods, the elastic coefficient of the elastic device connected with the lower support rod is greater than the elastic coefficient of the elastic device connected with the upper support rod.
7. The battery heating drying apparatus according to claim 1, wherein The support rods between the two adjacent heating plates are a plurality of support rods, and the plurality of support rods are arranged at the respective end portions of the heating plates.
8. The battery heating drying apparatus according to claim 1, wherein Further comprising a temperature sensor arranged in the drying box, the temperature sensor is used for detecting the temperature in the drying box.
9. The battery heating drying apparatus according to claim 1, wherein, The drying box is provided with a moving device, the heating assembly is connected with the moving device, and the moving device is used for driving the heating assembly to move in the direction perpendicular to the height direction of the battery.
10. The battery heating drying apparatus according to claim 9, wherein, The moving device comprises a guide rail, and the lowermost heating plate is connected with the guide rail through a sliding block.