Battery cell contact type heating tray and battery cell heating device

Abstract

The utility model relates to the field of heating equipment, in particular to a battery cell contact type heating tray and a battery cell heating device. A battery cell contact type heating tray comprises a frame, a main heating plate and a compensation heating plate, the main heating plate and the compensation heating plate are arranged in the frame, the heating surface of the main heating plate and the heating surface of the compensation heating plate are arranged in a back-to-back mode, and the heating surface of the main heating plate is used for conducting heat transfer with a battery cell in a contact mode. And the heating surface of the compensation heating plate is used for non-contact heat transfer with the battery cell. And after the heating trays are placed in the heating device, the main heating plate is used for heating the battery cells propped against the main heating plate in a contact manner. And the compensation heating plate compensates heat for the adjacent battery cell in a non-contact manner, so that the area, far away from the main heating plate, of the battery cell can be effectively heated. Therefore, the uniformity of heating different areas of the whole battery cell can be improved.

Description

Technical Field

[0001] The present application relates to the field of heating equipment, and in particular to a battery cell contact heating tray and a battery cell heating device. Background Art

[0002] A battery cell usually refers to the core part of a battery, also known as a battery chip or battery core. It is the main component of a battery and is responsible for storing and releasing energy. There are different types and chemical compositions of battery cells, and common battery cells include lithium-ion batteries, nickel-metal hydride batteries, lead-acid batteries, etc. Battery cells are widely used in various devices, such as mobile phones, laptops, electric vehicles, etc.

[0003] During the production process of battery cells, it is usually necessary to bake them in order to remove moisture and other volatile substances in the battery cells and ensure the safety and stability of the battery cells during use. In the prior art, the battery cells are usually placed in a tray in a heating device, and then the battery cells are heated and baked by the built-in heating elements in the tray to meet the requirements of the production process.

[0004] Regarding the above-mentioned related technologies, since the battery cell is in contact with one side of the tray, the direct contact surface of the battery cell and the tray has a good heating effect, while the heating effect of the indirect contact surface is poor, which makes the overall heating of the battery cell uneven, affecting the subsequent quality of the product. Utility Model Content

[0005] In order to solve the above-mentioned problem that the temperature uniformity of battery cell heating cannot be effectively and quickly improved, the present application provides a battery cell contact heating tray and a battery cell heating device.

[0006] In the first aspect, the present application provides a battery contact heating tray, which adopts the following technical solution:

[0007] A battery cell contact heating tray comprises a frame, a main heating plate and a compensation heating plate arranged in the frame, the heating surface of the main heating plate and the heating surface of the compensation heating plate are arranged back to back, the heating surface of the main heating plate is used for contact heat transfer with the battery cell, and the heating surface of the compensation heating plate is used for non-contact heat transfer with the battery cell.

[0008] By adopting the above technical solution, multiple heating trays are placed with battery cells. After the heating trays are placed in the heating device, the main heating plate heats the battery cells that are in contact with it. The compensation heating plate compensates the heat of the battery cells adjacent to it in a non-contact manner, ensuring that the battery cells away from the main heating plate area can also be effectively heated. Therefore, the above technical solution can improve the uniformity of heating different areas of the battery cells as a whole, and ultimately ensure the production quality of the battery cells.

[0009] Optionally, a heat conducting plate is further included, wherein the heat conducting plate is fixed to the heating surface of the main heating plate, and a side of the heat conducting plate away from the main heating plate is used for abutting against the battery core.

[0010] By adopting the above technical solution, the setting of the heat conducting plate is convenient for the automated production of the clamp to clamp and remove the battery core, and at the same time can effectively transfer the heat of the main heating plate to the battery core.

[0011] Optionally, a plurality of heat conducting plates are provided, and a spacing is provided between the plurality of heat conducting plates.

[0012] By adopting the above technical solution, firstly, multiple heat conducting plates are provided, which can save costs compared with providing a large heat conducting plate. Secondly, the spacing between the heat conducting plates facilitates part of the heat radiated by the main heating plate to be directly conducted through the spacing, further improving the heating effect on the side of the battery cell.

[0013] Optionally, a limiting member is provided on a side of the heat conducting plate away from the main heating plate, and the limiting member includes an adjusting portion for abutting against the battery core, and a locking portion for fixedly connecting the adjusting portion and the heat conducting plate.

[0014] By adopting the above technical solution, the adjustment part and the locking part cooperate to effectively limit and fix the battery core on the heat conducting plate.

[0015] Optionally, the adjusting portion comprises an adjusting column, the adjusting column is slidably connected to the heat conducting plate, and the adjusting column is provided with a locking hole;

[0016] The locking portion comprises a locking rod, a plurality of matching holes are formed on the heat conducting plate, and the locking rod is inserted into the locking hole and the matching hole.

[0017] By adopting the above technical solution, the adjustment column can be moved to make it abut against the side of the battery cell, and then the position of the adjustment column can be effectively fixed by the locking rod, and further abut against the limiting battery cell to prevent the battery cell from being displaced and causing the clamp to remove the battery cell inaccurately. Therefore, the position of the adjustment part can be adjusted according to the size of the battery cell to adapt to different sizes of battery cells.

[0018] Optionally, the heat conducting plate is used to place a battery cell, and two opposite sides of the heat conducting plate are provided with avoidance grooves for the clamping claws to extend into.

[0019] By adopting the above technical solution, the setting of the avoidance groove makes it easy to place the battery cell on the heat conductive plate through the clamping claws, and also makes it easy to take out the battery cell after heating.

[0020] Optionally, a plurality of abutment rods are fixedly connected between the main heating plate and the compensation heating plate.

[0021] By adopting the above technical solution, firstly, the abutting rod can play the role of supporting and fixing the main heating plate and the compensation heating plate. Secondly, the abutting rod can separate the main heating plate and the compensation heating plate, thereby reducing the mutual interference between the two.

[0022] Optionally, the frame is provided with a sealing groove, a sealing strip is passed through the sealing groove, and the sealing strip is used to abut against the adjacent frame.

[0023] By adopting the above technical solution, the sealing strip can form a closed space between the two frames, thereby improving the heating effect of the battery cells between the two frames.

[0024] Optionally, the frame includes a plurality of splicing strips connected end to end, and the splicing strips are provided with a plurality of through holes along their own extending directions.

[0025] By adopting the above technical solution, the through holes in the splicing strips can effectively reduce weight, thereby reducing the weight of the entire pallet, making it easier to take and place the pallet, and effectively saving material costs.

[0026] In a second aspect, the present application provides a battery core heating device, which adopts the following technical solution:

[0027] A battery cell heating device comprises a box body and a plurality of trays, wherein the trays are the battery cell contact heating trays as described above, and multiple layers of the trays are arranged in the box body at intervals so that the main heating plates and the compensation heating plates are arranged alternately.

[0028] By adopting the above technical solution, multiple trays in the box can effectively heat both sides of the battery cell through the main heating plate and the compensation heating plate, thereby improving the uniformity of heating different areas of the battery cell as a whole.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. Multiple heating trays are each provided with battery cells. After the heating trays are placed in the heating device, the main heating plate heats the battery cells in contact with it; the compensation heating plate compensates the battery cells adjacent to it in a non-contact manner, ensuring that the battery cells away from the main heating plate can also be effectively heated; therefore, the present application can improve the uniformity of heating different areas of the battery cells as a whole;

[0031] 2. The heat conducting plate facilitates the automatic production of the clamp to hold the battery cell, and can also effectively transfer the heat from the main heating plate to the battery cell; the spacing between multiple heat conducting plates facilitates part of the heat radiated by the main heating plate to be directly conducted through this spacing, further improving the heating effect on the side of the battery cell;

[0032] 3. The adjustment part and the locking part cooperate to effectively fix the battery cells on the heat conducting plate, and the position of the adjustment part can be adjusted according to the size of the battery cells to adapt to battery cells of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of a battery cell contact heating tray according to an embodiment of the present application.

[0034] Figure 2 It is a schematic diagram of the structure of a battery contact heating tray with a hidden frame in an embodiment of the present application.

[0035] Figure 3 yes Figure 1 Enlarged schematic diagram at point A in the middle.

[0036] Figure 4 yes Figure 2 Enlarged schematic diagram of point B in the middle.

[0037] Figure 5 It is a schematic diagram of the structure in which the heat conducting plate and the limiting member limit and fix the battery cell.

[0038] Description of reference numerals:

[0039] 1. Frame; 11. Splicing strip; 111. Through hole; 112. Sealing groove; 2. Main heating plate; 3. Compensating heating plate; 4. Heat conducting plate; 41. Matching hole; 42. Avoidance groove; 5. Limiting member; 51. Adjusting part; 511. Adjusting column; 52. Locking part; 521. Locking rod; 6. Abutting rod; 7. Sealing strip. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1 -Attached Figure 5 , further details of this application are given.

[0041] It should be noted that, in the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] The embodiment of the present application discloses a battery core contact heating tray.

[0043] Reference Figure 1 and Figure 2A battery cell contact heating tray includes a frame 1, a main heating plate 2, a compensation heating plate 3, a heat conducting plate 4 and a limiting member 5.

[0044] Reference Figure 1 and Figure 3 The frame 1 includes a plurality of splicing strips 11 connected end to end, and the splicing strips 11 are provided with a plurality of through holes 111 along their own extending direction. In the present embodiment, the splicing strips 11 are made of profiles, and the provision of the through holes 111 is achieved by molding the profiles. Among them, in the present embodiment, four splicing strips 11 are provided, which together form a square frame. In other embodiments, the number of splicing strips 11 can be other numbers, and the frame 1 can also be other shapes. The splicing strips 11 are provided by opening holes, which can reduce the weight of the entire heating tray on the one hand to facilitate the removal and placement of the heating tray; on the other hand, it can reduce the amount of materials used to solve the cost problem.

[0045] Reference Figure 1 and Figure 2 The main heating plate 2 and the compensation heating plate 3 are arranged in the frame 1, and the heating surface of the main heating plate 2 and the heating surface of the compensation heating plate 3 are arranged back to back. The heating surface of the main heating plate 2 is used for contact heat transfer with the battery cell, and the heating surface of the compensation heating plate 3 is used for non-contact heat transfer with the battery cell.

[0046] The heating principle of the main heating plate 2 and the compensation heating plate 3 is: by energizing the heating wire, electrical energy is converted into thermal energy. The heating surface referred to above is the main temperature rising surface (i.e. the side with high temperature) of the main heating plate 2 or the compensation heating plate 3, and the heating surface can heat the battery cell in contact with it.

[0047] In this embodiment, refer to Figure 2 and Figure 4 A plurality of abutment rods 6 are fixedly connected between the main heating plate 2 and the compensation heating plate 3. Specifically, the abutment rods 6 can be fixedly connected by means of screws, bolts, etc. In this embodiment, the number of abutment rods 6 is set to three, and other numbers can also be used in other embodiments. The abutment rods 6 can provide effective support for the installation of the main heating plate 2 and the compensation heating plate 3, and can also separate the main heating plate 2 and the compensation heating plate 3 to reduce the mutual interference that may occur between the two.

[0048] Reference Figure 4 The heat conducting plate 4 is fixed to the heating surface of the main heating plate 2, and can be fixedly connected by screws. The side of the heat conducting plate 4 away from the main heating plate 2 is used to abut against the battery cell. Therefore, during the heating process, the heat conducting plate 4 can effectively conduct the heat of the main heating plate 2 to the battery cell, thereby heating the battery cell.

[0049] Reference Figure 2 and Figure 4In this embodiment, a plurality of heat conducting plates 4 are provided, and a spacing is provided between the plurality of heat conducting plates 4. In other embodiments, the heat conducting plate 4 may also be provided as a whole piece. In this embodiment, compared with providing a whole piece, a plurality of heat conducting plates 4 can effectively save the material resources of the heat conducting plates 4, thereby reducing the cost. In addition, the main heating plate 2 can also radiate heat to the battery cell through the spacing between the heat conducting plates 4, thereby improving the heating effect on the side of the battery cell.

[0050] Reference Figure 4 and Figure 5 A limiting member 5 is provided on one side of the heat conducting plate 4 away from the main heating plate 2 , and the limiting member 5 includes an adjusting portion 51 for abutting against the battery core, and a locking portion 52 for fixing the adjusting portion 51 and the heat conducting plate 4 .

[0051] Specifically, the adjusting portion 51 includes an adjusting column 511, which is slidably connected to the heat conducting plate 4, and a locking hole is provided in the adjusting column 511 (see Figure 4 In this embodiment, the sliding connection with the adjustment column 511 is achieved by slotting the heat conducting plate 4. The locking portion 52 includes a locking rod 521 (see Figure 5 ), a plurality of matching holes 41 are provided on the heat conducting plate 4, and the locking rod 521 is passed through the locking hole and the matching hole 41.

[0052] During operation, the adjustment column 511 on the heat conducting plate 4 is moved so that the spacing between the adjustment columns 511 matches the size of the battery cell, and then the adjustment columns 511 with the adjusted spacing are fixed by the locking rod 521. The locking rod 521 can be specifically set as a screw and fixed by the screw. Finally, the battery cell is placed between the adjustment columns 511 on the heat conducting plate 4 by means of an automated clamp, so as to achieve the position limiting fixation of the battery cell. The setting of the adjustment column 511 can avoid the situation where the battery cell may be displaced, resulting in the inaccurate position of the clamp to remove the battery cell. Since the adjustment column 511 is movably arranged, the present application can enhance the adaptability of the position limiting of battery cells of different sizes.

[0053] In an optional embodiment, the limiting member 5 may also be fixedly disposed on the heat conducting plate 4 (ie, the limiting member does not move). In this case, the distance between the limiting members 5 may be preset according to the size of a battery cell.

[0054] Reference Figure 4 and Figure 5 Furthermore, a heat conducting plate 4 is used to place a battery cell, and two opposite sides of the heat conducting plate 4 are provided with avoidance grooves 42 for the clamps to extend into. Therefore, when taking out and placing the battery cell, the battery cell can be clamped by the clamps automatically controlled by the program. In this embodiment, the avoidance grooves 42 are mirror-imaged on both sides of the heat conducting plate 4. It can be understood that in other embodiments, the opening position and opening depth of the avoidance grooves 42 can be adaptively adjusted according to the shape and structure of the clamps.

[0055] Reference Figure 3 In an optional embodiment, the frame 1 is provided with a sealing groove 112, and a sealing strip 7 is passed through the sealing groove 112, and the sealing strip 7 is used to abut against the adjacent frame 1. In this embodiment, the sealing groove 112 is provided on the splicing strip 11. Among them, the sealing groove 112 can be close to the main heating plate 2, or close to the compensation heating plate 3, or multiple sealing grooves 112 can be provided. The sealing strip 7 can form an enclosed space between the two frames 1, thereby improving the heating effect of the battery cells between the two frames 1. The number of sealing strips 7 can be set according to the number and position of the sealing grooves 112.

[0056] The implementation principle of this embodiment is as follows: first, the battery cell is clamped and placed on the heat conducting plate 4 by the clamping claws, and the battery cell is fixed by the cooperation with the limiting member 5. Then, a plurality of heating trays with battery cells are placed in the heating device, and the main heating plate 2 and the compensation heating plate 3 are started to heat the battery cells.

[0057] During the heating process, the main heating plate 2 performs contact heat transfer to the battery cell, thereby increasing the temperature of the contact area between the battery cell and the main heating plate 2. The compensation heating plate 3 performs non-contact heat transfer to the battery cell, and at this time, the compensation heating plate 3 can compensate a certain amount of heat to the side of the battery cell away from the main heating plate 2, thereby improving the uniformity of heating the battery cell as a whole as much as possible.

[0058] The embodiment of the present application also discloses a battery cell contact heating device.

[0059] Reference Figure 1 and Figure 2 A battery cell heating device includes a box body (not shown in the figure) and multiple trays, the trays are the above-mentioned battery cell contact heating trays, and multiple layers of trays are arranged in the box body at intervals so that the main heating plate 2 and the compensation heating plate 3 are arranged alternately.

[0060] The implementation principle of a heating tray in an embodiment of the present application is as follows: the main heating plate 2 and the compensation heating plate 3 that are close to each other between two adjacent trays in the box can effectively heat both sides of the battery cell. The main heating plate 2 performs abutment heating on the battery cell, and the compensation heating plate 3 performs non-contact compensation heat on the battery cell, thereby being able to improve the uniformity of the overall heating of the battery cell to a certain extent.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A battery contact heating tray, characterized in that: The invention comprises a frame (1), a main heating plate (2) and a compensation heating plate (3) arranged in the frame (1); the heating surface of the main heating plate (2) and the heating surface of the compensation heating plate (3) are arranged back to back; the heating surface of the main heating plate (2) is used for contact heat transfer with the battery cell, and the heating surface of the compensation heating plate (3) is used for non-contact heat transfer with the battery cell.

2. The battery contact heating tray according to claim 1, characterized in that: It also comprises a heat conducting plate (4), the heat conducting plate (4) being fixed to the heating surface of the main heating plate (2), and a surface of the heat conducting plate (4) away from the main heating plate (2) being used for abutting against the battery core.

3. The battery contact heating tray according to claim 2, characterized in that: A plurality of the heat conducting plates (4) are provided, and a spacing is provided between the plurality of the heat conducting plates (4).

4. The battery contact heating tray according to claim 3, characterized in that: A limiting member (5) is provided on a side of the heat conducting plate (4) away from the main heating plate (2), the limiting member (5) comprising an adjusting portion (51) for abutting against the battery core, and a locking portion (52) for fixedly connecting the adjusting portion (51) and the heat conducting plate (4).

5. The battery contact heating tray according to claim 4, characterized in that: The adjusting portion (51) comprises an adjusting column (511), the adjusting column (511) is slidably connected to the heat conducting plate (4), and the adjusting column (511) is provided with a locking hole; The locking portion (52) comprises a locking rod (521), a plurality of matching holes (41) are provided on the heat conducting plate (4), and the locking rod (521) is inserted into the locking holes and the matching holes (41).

6. The battery contact heating tray according to claim 3, characterized in that The heat conducting plate (4) is used for placing an electric core, and two opposite sides of the heat conducting plate (4) are provided with avoidance grooves (42) for the clamping claws to extend into.

7. The battery contact heating tray according to claim 1, characterized in that: A plurality of abutment rods (6) are fixedly connected between the main heating plate (2) and the compensation heating plate (3).

8. The battery contact heating tray according to claim 1, characterized in that: The frame (1) is provided with a sealing groove (112), a sealing strip (7) is passed through the sealing groove (112), and the sealing strip (7) is used to abut against the adjacent frame (1).

9. The battery contact heating tray according to claim 1, characterized in that: The frame (1) comprises a plurality of splicing strips (11) connected end to end, and the splicing strips (11) are provided with a plurality of through holes (111) along their own extending direction.

10. A battery cell heating device, comprising a box and a plurality of trays, wherein the trays are battery cell contact heating trays as claimed in any one of claims 1 to 9, wherein multiple layers of the trays are arranged in intervals in the box so that the main heating plates (2) and the compensation heating plates (3) are arranged alternately.

Images