Baking device for battery cell

Abstract

The utility model discloses a baking device for a battery cell, and relates to the technical field of lithium battery processing equipment. The inner side wall of the baking rack is provided with at least one group of cantilever roller strip groups; and the heating unit is used for bearing the battery cell and can heat the battery cell, and the heating unit is provided with sliding chutes which are in one-to-one correspondence with the cantilever roller strips in the cantilever roller strip group so as to be convenient to pull out or put in the heating unit. The objective of the utility model is to reduce the difficulty of battery cell arrangement of an existing bare battery cell vacuum baking device.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery processing equipment, in particular to a baking device for a battery core. Background Art

[0002] Cell baking is an important step in the battery manufacturing process. During the battery manufacturing process, the battery cells usually need to go through process steps such as coating, lamination, and packaging. The materials and solvents used in these processes may remain inside the battery cells, such as electrolytes, organic solvents, etc. If these residues are not completely removed, it may lead to an increase in impurities and impure substances in the battery cells, thereby reducing the performance and life of the battery. Cell baking can effectively remove the residues in the battery cells and improve the quality and reliability of the battery.

[0003] In order to realize the baking of battery cells, a bare battery cell vacuum baking device has appeared on the market, which includes: a device frame, a flat pressing plate and a heating plate, the coil core to be baked is placed on the bottom plate of the device frame, the device frame is provided with a plurality of heating plates along the length direction, adjacent heating plates are connected by tension rods, independent baking spaces are formed between adjacent heating plates, and the coil core to be baked is arranged in the baking space; guide shafts are fixedly provided on both sides of the device frame, and the guide shafts pass through the heating plates in sequence; one side of the flat pressing plate is elastically connected to the outermost heating plate at the end, and the other side is connected to the rotating shaft through a screw nut pair; an external power drives the rotating shaft to rotate, and the rotating shaft drives the flat pressing plate to rotate along the device The rack makes a translational movement in the length direction, and the flat pressing plate drives the heating plate to make a translational movement along the guide shaft; the heating plate makes a translational movement along the guide shaft in sequence under the action of the tension rod; silicone heating plates are arranged on both sides of the heating plate, and one side of the flat pressing plate is connected to the outermost heating plate of the head through a connecting shaft, and the flat pressing plate can slide along the connecting shaft; a spring is arranged on the connecting shaft, one end of the spring abuts on the end face of the flat pressing plate, and the other end abuts on the end face of the heating plate; a spring is arranged between the outermost heating plate of the tail and the end plate of the device rack; the tension rod is C-shaped, the middle section is fixedly connected to the heating plate, and the two sides are bent and hooked with the adjacent tension rods, and a changeable lining paper is arranged on the device rack. Although it solves the problem of baking bare cells, when placing the cells, the cells need to be inserted into the baking rack before they can be placed in the designated area, which makes it more difficult to arrange the cells.

[0004] Therefore, how to simplify the difficulty of arranging cells in the existing bare cell vacuum baking device has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] The main purpose of the utility model is to provide a baking device for battery cells, aiming to reduce the difficulty of arranging battery cells in the existing vacuum baking device for bare battery cells.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a baking device for a battery cell, comprising:

[0007] A baking rack, with at least one set of cantilever roller strips disposed on the inner side wall; and

[0008] The heating unit is used to carry the battery cell and heat the battery cell. The heating unit is provided with a slide groove which corresponds one-to-one with the cantilever roller bars in the cantilever roller bar group to facilitate the extraction or insertion of the heating unit.

[0009] In one embodiment of the present application, the cantilever roller bar group includes a first cantilever roller bar and a second cantilever roller bar, and the first cantilever roller bar and the second cantilever roller bar are arranged opposite to each other;

[0010] The heating unit is provided with a first slide groove and a second slide groove, the first slide groove is slidably connected to the first cantilever roller bar, and the second slide groove is slidably connected to the second cantilever roller bar.

[0011] In one embodiment of the present application, the bottom of the baking rack is provided with universal wheels for facilitating the movement of the baking rack.

[0012] In one embodiment of the present application, the universal wheel is provided with a locking member which can lock the universal wheel to limit the rotation of the universal wheel.

[0013] In one embodiment of the present application, the heating unit includes:

[0014] Upper tray, the top is used to carry the battery cells;

[0015] A lower bottom plate, cooperating with the upper tray to form a receiving cavity; and

[0016] A heating plate is arranged in the accommodating cavity and is used for heating the battery core on the upper tray.

[0017] In one embodiment of the present application, a temperature sensor for detecting the temperature of the battery core is provided on the upper surface of the lower base plate.

[0018] In one embodiment of the present application, a position sensor for detecting the installation position of the lower base plate is provided on the lower surface of the lower base plate.

[0019] In one embodiment of the present application, a probe contact plate electrically connected to the lower base plate is further provided on one side of the lower base plate, and the temperature sensor, the position sensor, and the heating plate are all electrically connected to the probe contact plate.

[0020] With the above technical solution, the cantilever roller bar group provides accurate positioning of the battery cell in the baking rack, ensuring the stability and accurate heating position of the battery cell. The heating unit is connected to the cantilever roller bar group through a slide slot, which can be easily pulled out or put in, simplifying the loading and unloading process of the battery cell. The heating unit can evenly heat the battery cell, ensuring that the heat is evenly distributed on the surface of the battery cell, thereby improving the baking effect and consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0022] Figure 1 This is a schematic structural diagram of the first embodiment of the utility model;

[0023] Figure 2 is a schematic diagram of the three-dimensional structure of the heating unit;

[0024] Figure 3 is a cross-sectional view of the heating unit in the width direction;

[0025] 1. Cantilever roller strip assembly; 2. Baking rack; 3. Heating unit; 4. Universal wheel; 6. Battery cell; 7. First cantilever roller strip; 8. Probe contact plate; 9. Second slide slot; 10. Upper tray; 11. Heating plate; 12. Lower bottom plate; 13. Temperature sensor; 14. Position sensor. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the utility model and do not constitute a limitation on the utility model.

[0027] like Figures 1 to 3 As shown, in order to achieve the above purpose, the utility model provides a baking device for a battery cell 6, comprising:

[0028] A baking rack 2, with at least one set of cantilever roller strips 1 disposed on the inner wall; and

[0029] The heating unit 3 is used to carry the battery cell 6 and heat the battery cell 6. The heating unit 3 is provided with a slide groove corresponding to the cantilever roller bars in the cantilever roller bar group 1 to facilitate the extraction or insertion of the heating unit 3.

[0030] Specifically, the baking rack 2 is a support structure for supporting and positioning the battery cell 6, and at least one group of cantilever roller bar groups 1 is provided on the inner side wall thereof. The cantilever roller bar group 1 includes a first cantilever roller bar 7 and a second cantilever roller bar, and the first cantilever roller bar 7 and the second cantilever roller bar are arranged opposite to each other. The first cantilever roller bar 7 and the second cantilever roller bar have the same structure, and each roller bar is equipped with a cantilever roller. The cantilever roller bar groups 1 are arranged in parallel and fixed to the inner side wall of the baking rack 2 by a fixing device.

[0031] When there are multiple cantilever roller bar groups 1 , they can be arranged in sequence along the height direction of the baking rack 2 .

[0032] The heating unit 3 is used to carry the battery cell 6 and heat the battery cell 6. The heating unit 3 can be placed inside the baking rack 2 and connected to the cantilever roller bar through a slide groove. The heating unit 3 is provided with a slide groove corresponding to the cantilever roller bar in the cantilever roller bar group 1, so as to facilitate the operation of taking the heating unit 3 out or putting it into the baking rack 2. Such a structural design can ensure the accurate positioning and stability of the heating unit 3 and the baking rack 2.

[0033] The cantilever roller bar set 1 is located on the inner wall of the baking rack 2 and is fixed by fixing screws. The heating unit 3 is located inside the baking rack 2 and is connected to the cantilever roller bar in the cantilever roller bar set 1 through a slide groove. The design of the slide groove enables the heating unit 3 to slide horizontally along the direction of the cantilever roller bar set 1 to achieve the operation of pulling out or putting in.

[0034] With the above technical solution, the cantilever roller bar assembly 1 provides accurate positioning of the battery cell 6 in the baking rack 2, ensuring the stability and accurate heating position of the battery cell 6. The heating unit 3 is connected to the cantilever roller bar assembly 1 through a slide slot, and can be easily pulled out or put in, simplifying the loading and unloading process of the battery cell 6. The heating unit 3 can evenly heat the battery cell 6, ensuring that the heat is evenly distributed on the surface of the battery cell 6, thereby improving the baking effect and consistency.

[0035] In one embodiment of the present application, the cantilever roller strip set 1 includes a first cantilever roller strip 7 and a second cantilever roller strip, and the first cantilever roller strip 7 and the second cantilever roller strip are arranged opposite to each other;

[0036] The heating unit 3 is provided with a first slide groove and a second slide groove 9 , wherein the first slide groove is slidably connected to the first cantilever roller bar 7 , and the second slide groove 9 is slidably connected to the second cantilever roller bar.

[0037] Specifically, the cantilever roller bar group 1 is composed of a first cantilever roller bar 7 and a second cantilever roller bar group 1, and the first cantilever roller bar 7 and the second cantilever roller bar are relatively arranged on the inner side wall of the baking rack 2. The first cantilever roller bar 7 and the second cantilever roller bar are arranged in parallel, and each is equipped with a cantilever roller.

[0038] The heating unit 3 is provided with a first slide groove and a second slide groove 9 for connecting the cantilever roller strip set 1. The first slide groove is connected to the first cantilever roller strip 7, and the second slide groove 9 is connected to the second cantilever roller strip. Such a structural design enables the heating unit 3 to slide horizontally along the direction of the cantilever roller strip set 1 to achieve the operation of pulling out or putting in.

[0039] The first cantilever roller strip 7 and the second cantilever roller strip are disposed on the inner side wall of the baking rack 2 opposite to each other and arranged in parallel.

[0040] The heating unit 3 is located inside the baking rack 2 and is provided with a first sliding groove and a second sliding groove 9 .

[0041] The first slide groove is connected to the first cantilever roller strip 7, and the second slide groove 9 is connected to the second cantilever roller strip.

[0042] With the above technical solution, the cantilever roller bar set 1 provides accurate positioning of the battery cell 6 in the baking rack 2, ensuring the stability and accurate heating position of the battery cell 6. The heating unit 3 is connected to the first cantilever roller bar 7 and the second cantilever roller bar through the first slide groove and the second slide groove 9, respectively, to achieve horizontal sliding of the heating unit 3, which is convenient for loading and unloading of the battery cell 6.

[0043] In one embodiment of the present application, the bottom of the baking rack 2 is provided with universal wheels 4 for facilitating the movement of the baking rack 2 .

[0044] Specifically, the baking rack 2 is used to support the battery cells 6 and has a storage space and a bottom.

[0045] The cantilever roller bar set 1 is composed of a first cantilever roller bar 7 and a second cantilever roller bar set 1 , and is installed on the inner side wall of the baking rack 2 to position and support the heating unit 3 .

[0046] The heating unit 3 is used to carry the battery core 6 and heat it. The heating unit 3 is arranged inside the baking rack 2 and is connected to the cantilever roller bar group 1 through a slide groove.

[0047] The universal wheel 4 is located at the bottom of the baking rack 2, so that the baking rack 2 can move freely on the plane. By setting the universal wheel 4, the baking rack 2 can be easily transferred to the baking station, the structure is simple, and it is easy to implement.

[0048] With the above technical solution, the cantilever roller bar group 1 provides accurate positioning and support functions for the battery cell 6 in the baking rack 2, ensuring the stability and accurate heating position of the battery cell 6. The universal wheel 4 at the bottom allows the entire baking rack 2 to move freely on a plane, making it easy to adjust the position and layout.

[0049] In one embodiment of the present application, the universal wheel 4 is provided with a locking member which can lock the universal wheel 4 to limit the rotation of the universal wheel 4 .

[0050] Specifically, the locking member is installed on each universal wheel 4 to lock the universal wheel 4 and limit its rotation. When necessary, the position of the baking rack 2 can be fixed to prevent unnecessary movement.

[0051] In one embodiment of the present application, the heating unit 3 includes:

[0052] An upper tray 10, the top of which is used to carry the battery cells 6;

[0053] A lower bottom plate 12 cooperates with the upper tray 10 to form a receiving cavity; and

[0054] The heating plate 11 is disposed in the accommodating cavity and is used for heating the battery core 6 located on the upper tray 10 .

[0055] Specifically, the upper tray 10 is located on the top of the heating unit 3 and is used to carry the battery cell 6. The upper tray 10 is a flat platform structure with sufficient strength and stability to support the battery cell 6. It is in direct contact with the battery cell 6 and is used to conduct heat to the battery cell 6.

[0056] The lower bottom plate 12 cooperates with the upper tray 10 to form a receiving cavity. The lower bottom plate 12 is a planar structure located at the bottom of the upper tray 10 and is tightly connected to the upper tray 10 to form a closed space.

[0057] The heating plate 11 is located inside the accommodating cavity and is used to heat the battery core 6 located on the upper tray 10. The heating plate 11 is made of a heat-conducting material and has good heat conductivity and heating uniformity.

[0058] With the above technical solution, the upper tray 10 has sufficient strength and stability to reliably carry the battery cell 6 and avoid deformation or distortion. The heating plate 11, as a heating source, can provide a uniform heating effect, ensure a uniform temperature distribution on the surface of the battery cell 6, and improve the baking effect and consistency.

[0059] In one embodiment of the present application, a temperature sensor 13 for detecting the temperature of the battery cell 6 is provided on the upper surface of the lower base plate 12 .

[0060] Specifically, there are multiple temperature sensors 13 , which are evenly distributed on the upper surface of the lower base plate 12 . The accuracy of temperature detection of the battery cell 6 can be improved through multi-angle temperature detection.

[0061] In one embodiment of the present application, a position sensor 14 for detecting the installation position of the lower base plate 12 is disposed on the lower surface of the lower base plate 12 .

[0062] Specifically, the position sensor 14 can accurately detect the installation position of the lower base plate 12. By measuring the relative position between the lower base plate 12 and other components, it can be ensured that the lower base plate 12 is correctly installed in the predetermined position, avoiding assembly errors or deviations, and ensuring that the heating plate moves into place.

[0063] In one embodiment of the present application, one side of the lower base plate 12 is further provided with an electrically connected probe contact plate 8 , and the temperature sensor 13 , the position sensor 14 , and the heating plate 11 are all electrically connected to the probe contact plate 8 .

[0064] Specifically, the temperature sensor 13, the position sensor 14 and the heating plate 11 can be conveniently electrically connected to a power source or other electronic devices through the probe contact plate 8. This simplifies the circuit wiring and connection process, making the connection between electronic components more efficient and reliable.

[0065] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A baking device for a battery cell, characterized in that: include: The baking rack has at least one set of cantilever roller strips on the inner wall; and The heating unit is used to carry the battery core and heat the battery core. The heating unit is provided with a slide groove which corresponds one-to-one with the cantilever roller bars in the cantilever roller bar group to facilitate the extraction or insertion of the heating unit.

2. The baking device for the battery cell according to claim 1, characterized in that: The cantilever roller strip group comprises a first cantilever roller strip and a second cantilever roller strip, and the first cantilever roller strip and the second cantilever roller strip are arranged opposite to each other; The heating unit is provided with a first slide groove and a second slide groove, the first slide groove is slidably connected to the first cantilever roller bar, and the second slide groove is slidably connected to the second cantilever roller bar.

3. The baking device for the battery cell according to claim 1, characterized in that: The bottom of the baking rack is provided with universal wheels for facilitating the movement of the baking rack.

4. The baking device for the battery cell according to claim 3, characterized in that: The universal wheel is provided with a locking member which can lock the universal wheel to limit the rotation of the universal wheel.

5. The baking device for a battery cell according to any one of claims 1 to 4, characterized in that: The heating unit comprises: Upper tray, the top is used to carry the battery cells; A lower bottom plate, cooperating with the upper tray to form a receiving cavity; and A heating plate is arranged in the accommodating cavity and is used for heating the battery core on the upper tray.

6. The baking device for the battery cell according to claim 5, characterized in that: A temperature sensor for detecting the temperature of the battery core is provided on the upper surface of the lower base plate.

7. The baking device for the battery cell according to claim 6, characterized in that: A position sensor for detecting the installation position of the lower base plate is provided on the lower surface of the lower base plate.

8. The baking device for the battery cell according to claim 7, characterized in that: A probe contact plate electrically connected to the bottom plate is also provided on one side of the bottom plate, and the temperature sensor, the position sensor, and the heating plate are all electrically connected to the probe contact plate.

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