Oven and coating apparatus

Abstract

The application provides an oven and a coating device. The oven comprises a box body, a first sealing element and a passing roller. The box body is provided with a containing cavity. The side wall of the box body is provided with a mounting hole communicating with the containing cavity. The first sealing element is arranged in the mounting hole. The first sealing element is provided with a avoiding hole. The hole wall of the avoiding hole is provided with a sealing groove. The passing roller is rotatably arranged in the avoiding hole. On the one hand, the first sealing element can physically block the debris generated during the rotation of the passing roller in the mounting hole, thereby reducing or avoiding the debris from falling into the containing cavity from the mounting hole, avoiding the debris from polluting the battery pole piece, thereby improving the production quality of the battery pole piece, improving the performance of the battery. On the other hand, by arranging the sealing groove on the hole wall of the avoiding hole, the sealing effect of the first sealing element on the passing roller and the mounting hole can be improved, and the debris can be accommodated through the sealing groove, thereby reducing the floating of the debris and reducing or avoiding the debris from entering the containing cavity.

Description

Technical Field

[0001] This application relates to the field of battery electrode drying technology, and more particularly to a drying device. Background Technology

[0002] In the production of battery electrodes, after the slurry is coated onto the substrate, it needs to be dried in an oven. In traditional ovens, rollers are installed on the oven body. However, during the rotation of the rollers, debris is generated. This debris can easily enter the oven through the installation gap between the rollers and the oven body, causing contamination of the battery electrodes. Utility Model Content

[0003] This application provides an oven and coating equipment to solve the problem that debris generated during the rotation of the roller can easily enter the interior of the oven through the installation gap between the roller and the oven body.

[0004] In a first aspect, this application provides an oven, the oven including a chamber, a first sealing element, and a roller. The chamber has a receiving cavity, and a mounting hole communicating with the receiving cavity is provided on the side wall of the chamber. The first sealing element is disposed in the mounting hole and has a clearance hole, the wall of which has a sealing groove. The roller is rotatably inserted through the clearance hole.

[0005] In some embodiments, the sealing groove includes a plurality of sub-grooves, which are spaced apart along the axial direction of the roller; or, the sealing groove is a first spiral groove.

[0006] In some embodiments, the oven further includes a limiting member, which is fixedly connected to the oven body and located at the opening of the mounting hole near the receiving cavity, and the first sealing member is fixedly connected to the limiting member.

[0007] In some embodiments, the first seal is a non-metallic component.

[0008] In some embodiments, at least one roller is provided, the number of mounting holes is twice the number of rollers, the two ends of each roller pass through the mounting hole respectively, and at least one mounting hole is provided with the first seal.

[0009] In some embodiments, the oven further includes a second seal located in the mounting hole, the second seal being fixedly connected to the roller and located on the side of the first seal away from the receiving cavity, the roller being spaced apart from the wall of the clearance hole, and on a plane perpendicular to the axial direction of the roller, the orthographic projection of the second seal at least partially covers the gap between the roller and the wall of the clearance hole.

[0010] In some embodiments, a second spiral groove is provided on the outer wall of the second seal on the side facing the mounting hole, and / or a third spiral groove is provided on the wall of the mounting hole opposite to the second seal.

[0011] In some embodiments, the oven further includes a first adjustment structure mounted on the oven body, the first adjustment structure being used to adjust the installation position of the roller relative to the oven body, and / or, the oven further includes a second adjustment structure mounted on the oven body, the second adjustment structure being used to adjust the installation position of the roller relative to the oven body, the adjustment direction of the first adjustment structure being set at an angle to the adjustment direction of the second adjustment structure.

[0012] In some embodiments, the oven further includes a first hull and a second hull, the first hull and the second hull being respectively installed in the accommodating cavity, and the roller being located between the first hull and the second hull.

[0013] Secondly, this application provides a coating apparatus, the coating apparatus including a coating device as described in any of the preceding claims, the coating device being used to coat a slurry onto a substrate, the oven being disposed downstream of the substrate in the conveying direction of the substrate, the oven being used to dry the substrate coated with the slurry.

[0014] In the oven and coating equipment provided in this application, a first sealing element is provided in the mounting hole. The first sealing element has a clearance hole, and a sealing groove is provided on the wall of the clearance hole. The roller is rotatably inserted through the clearance hole. On the one hand, by providing the first sealing element in the mounting hole, the first sealing element can form a physical barrier for the debris generated during the rotation of the roller in the mounting hole, thereby reducing or preventing debris from falling from the mounting hole into the receiving cavity, preventing debris from contaminating the battery electrode, and thus improving the production quality of the battery electrode and improving the performance of the battery. On the other hand, by providing a sealing groove on the wall of the clearance hole, the sealing effect of the first sealing element between the roller and the mounting hole can be improved, preventing obstruction of the rotation of the roller, and by containing debris through the sealing groove, the floating of debris can be reduced, and the entry of debris into the receiving cavity can be reduced or prevented. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a schematic diagram of the coating equipment provided in the embodiments of this application.

[0017] Figure 2 This is a cross-sectional view of the oven provided in the embodiments of this application.

[0018] Figure 3 yes Figure 2 Enlarged view of point I in the middle.

[0019] Figure 4 This is a partial cross-sectional view of an oven provided in some embodiments of this application.

[0020] Figure 5 This is a partial cross-sectional view of an oven provided in some other embodiments of this application.

[0021] Figure 6 This is a side view of a partial structure of the oven provided in an embodiment of this application.

[0022] Key reference numerals in the drawings: Coating equipment 1000; Oven 100; Box body 11; Receiving cavity 101; Mounting hole 102; Third spiral groove 103; First hull 12; Second hull 13; First seal 21; Clearance hole 2101; Sealing groove 2102; Sub-groove 2103; First spiral groove 2104; Limiting element 22; Second seal 23; Second spiral groove 2301; Overhead roller 30; Roller body 31; Shaft end 32; Drive connector 33; Mounting base 41; Bearing 42; Protective cover 43; Bearing seat 44; First locking fastener 441; Second locking fastener 442; First adjusting structure 451; Second adjusting structure 452; Coating device 200; Substrate 300; Axial direction X; Radial direction Y.

[0023] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] In this document, references to "embodiment" or "implementation" mean that a particular feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] It should be noted that the terminology in the specification, claims, and accompanying drawings of this application is for describing specific embodiments only and is not intended to limit this application. The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. The term "and / or" as used in this application refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0027] In the embodiments of this application, for the purpose of clearer description, Figure 1 and Figure 2 For reference, in this application, the X-axis is defined as the axial direction of the roller 30 (i.e., the length extension direction of the roller 30), and the Y-axis is defined as the radial direction of the roller 30. The axial direction X of the roller 30 is set perpendicular to the radial direction Y.

[0028] Please refer to the following: Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a schematic diagram of the coating equipment 1000 provided in the embodiments of this application. Figure 2 This is a cross-sectional view of the oven 100 provided in the embodiments of this application. Figure 3 yes Figure 2 Enlarged view at point I. The coating equipment 1000 includes an oven 100 and a coating apparatus 200. The coating equipment 1000 is used in the field of battery manufacturing technology. The coating apparatus 200 is used to coat a slurry onto a substrate 300. The oven 100 is located downstream of the substrate 300 along the conveying direction. The oven 100 is used to dry the slurry-coated substrate 300 to form battery electrodes, facilitating battery production based on the battery electrodes in subsequent processes.

[0029] The oven 100 includes a chamber 11, a first sealing element 21, and a conveying roller 30. The chamber 11 has a receiving cavity 101. A mounting hole 102 communicating with the receiving cavity 101 is provided on the side wall of the chamber 11. The first sealing element 21 is disposed in the mounting hole 102. The first sealing element 21 has a clearance hole 2101. A sealing groove 2102 is formed on the wall of the clearance hole 2101. The conveying roller 30 is rotatably disposed in the clearance hole 2101. The first sealing element 21 is located between the conveying roller 30 and the chamber 11. The conveying roller 30 is used to support and convey the substrate 300. In this embodiment, on the one hand, by providing a first sealing member 21 in the mounting hole 102, the first sealing member 21 can physically block the debris generated during the rotation of the roller 30 in the mounting hole 102, thereby reducing or preventing debris from falling from the mounting hole 102 into the receiving cavity 101, preventing debris from contaminating the battery electrode, and thus improving the production quality of the battery electrode and improving the performance of the battery. On the other hand, by providing a sealing groove 2102 on the wall of the clearance hole 2101, the sealing effect of the first sealing member 21 between the roller 30 and the mounting hole 102 can be improved, avoiding obstruction of the rotation of the roller 30, and by containing debris through the sealing groove 2102, the floating of debris can be reduced, and the entry of debris into the receiving cavity 101 can be reduced or prevented.

[0030] The roller 30 and the first seal 21 are spaced apart to prevent the first seal 21 from obstructing the rotation of the roller 30, thus avoiding an increase in the power consumption of the oven 100, and to prevent the first seal 21 and the roller 30 from generating new debris due to mutual friction, thereby reducing the debris entering the accommodating cavity 101.

[0031] Along the axial direction X of the roller 30, the first seal 21 is located at one end of the mounting hole 102 near the receiving cavity 101, so as to facilitate the assembly of the first seal 21 and the disassembly of the first seal 21 when maintenance and repair are required, thereby reducing the difficulty of disassembling and assembling the first seal 21.

[0032] In this embodiment, the sealing groove 2102 extends along the radial direction Y of the roller 30. The sealing groove 2102 can be configured as an annular groove. The sealing groove 2102 includes multiple sub-grooves 2103. These sub-grooves 2103 are arranged at intervals along the axial direction X of the roller 30. Thus, the multiple sub-grooves 2103 can form a labyrinth seal structure, thereby improving the sealing effect of the first seal 21 between the roller 30 and the mounting hole 102, reducing debris passing between the roller 30 and the clearance hole 2101, and improving the sealing groove 2102's ability to contain debris, thereby reducing debris entering the receiving cavity 101. Each sub-groove 2103 can be configured as an annular groove.

[0033] Please see Figure 4 , Figure 4 This is a partial cross-sectional view of the oven 100 provided in some embodiments of this application. In some embodiments, the sealing groove 2102 is a first spiral groove 2104, so that when the roller 30 rotates relative to the first seal 21, the airflow brought up by the rotation of the roller 30 forms a spiral airflow under the guidance of the first spiral groove 2104, thereby blocking debris from entering the receiving cavity 101 through the spiral airflow. The spiral direction of the first spiral groove 2104 corresponds to the rotation direction of the roller 30, so that the spiral airflow flows from the side of the clearance hole 2101 near the receiving cavity 101 towards the side of the clearance hole 2101 away from the receiving cavity 101, so that the spiral airflow forms an airflow barrier against the debris.

[0034] The first spiral groove 2104 can be provided through the end face of the first seal 21 away from the accommodating cavity 101, so as to improve the airflow intensity of the spiral airflow and blow out the debris in the first spiral groove 2104 through the spiral airflow, reduce or avoid the gap between the debris and the roller 30 through the clearance hole 2101, and improve the sealing ability of the first seal 21.

[0035] In some embodiments, the first seal 21 may be configured to be interference-fitted with the mounting hole 102 so that the first seal 21 is fixed relative to the housing 11.

[0036] Please refer to the following: Figure 2 and Figure 3 In some embodiments, the oven 100 further includes a limiting member 22. The limiting member 22 is fixedly connected to the chamber body 11 and is located at the opening of the mounting hole 102 near the receiving cavity 101. The first sealing member 21 is fixedly connected to the limiting member 22. The limiting member 22 is used to fix the first sealing member 21 relative to the chamber body 11. Thus, by setting the limiting member 22 to fix the first sealing member 21, the first sealing member 21 can be transitionally fitted with the mounting hole 102, reducing the processing and assembly difficulty of the first sealing member 21 and the chamber body 11. The limiting member 22 can be configured as an annular member with a through hole, through which the roller 30 passes.

[0037] In this embodiment, the first seal 21 is a non-metallic component to prevent metal debris from being generated during assembly and use, thus avoiding metal contamination of the battery electrodes. For example, the first seal 21 can be a rubber seal, a silicone seal, etc. The first seal 21 can be configured as an elastic seal to prevent rigid collisions between the first seal 21 and the roller 30 during assembly, and to prevent rigid collisions between the roller 30 and the housing 11, thus preventing damage to the roller 30 during assembly.

[0038] In this embodiment, at least one roller 30 is provided. The number of mounting holes 102 is twice the number of rollers 30. Each roller 30 has its two ends passing through a mounting hole 102. At least one mounting hole 102 is provided with a first seal 21. Exemplarily, in this embodiment, all mounting holes 102 are provided with a first seal 21 to improve the sealing effect of the mounting holes 102, effectively prevent debris from entering the receiving cavity 101, improve the production quality of the battery electrode sheets, and improve the performance of the produced battery. In some embodiments, the first seal 21 may be provided in some mounting holes 102 and not in others to reduce the manufacturing cost of the oven 100.

[0039] The guide roller 30 includes a roller body 31 and shaft ends 32. Two shaft ends 32 are provided, and the roller body 31 is connected between the two shaft ends 32. The diameter of the roller body 31 is larger than the diameter of the shaft ends 32. The shaft ends 32 pass through the mounting holes 102. The roller body 31 is located within the receiving cavity 101. The roller body 31 may be hollow to reduce the mass of the guide roller 30 and decrease rotational inertia.

[0040] Please see Figure 4 In some embodiments, the oven 100 further includes a second seal 23 located in the mounting hole 102. The second seal 23 is fixedly connected to the roller 30 and is located on the side of the first seal 21 away from the receiving cavity 101. The second seal 23 is spaced apart from the wall of the mounting hole 102 to avoid friction between the second seal 23 and the wall of the mounting hole 102 when the roller 30 drives the second seal 23 to rotate, thereby avoiding obstruction of the rotation of the roller 30 and avoiding the generation of new debris. Along the axial direction X of the roller 30, the second seal 23 and the first seal 21 are spaced apart to avoid mutual friction between the second seal 23 and the first seal 21.

[0041] On a plane perpendicular to the axial direction X of the roller 30, the orthographic projection of the second seal 23 at least partially covers the gap between the roller 30 and the wall of the clearance hole 2101. Thus, on the one hand, the blocking effect of the second seal 23 reduces or prevents debris from entering the receiving cavity 101 from the gap between the roller 30 and the wall of the clearance hole 2101; on the other hand, the second seal 23 and the first seal 21 form a labyrinth seal structure in the mounting hole 102, thereby effectively preventing debris from entering the receiving cavity 101 through the combined sealing effect of the first seal 21 and the second seal 23, improving the production quality of the battery electrode sheets. Exemplarily, the second seal 23 can be constructed as a disc-shaped component, and the second seal 23 is sleeved on the shaft end 32 of the roller 30.

[0042] The second seal 23 is a non-metallic component to prevent metal debris from being generated during assembly and use, thus avoiding metal contamination of the battery electrodes. For example, the second seal 23 can be a rubber seal, a silicone seal, etc.

[0043] Please see Figure 5 , Figure 5 This is a partial cross-sectional view of the oven 100 provided in some embodiments of this application. A second spiral groove 2301 is provided on the outer wall of the second seal 23 facing the hole wall of the mounting hole 102, and / or a third spiral groove 103 is provided on the hole wall of the mounting hole 102 opposite to the second seal 23. In some embodiments, the second spiral groove 2301 is provided on the outer wall of the second seal 23 facing the hole wall of the mounting hole 102. When the roller 30 drives the second seal 23 to rotate, the second spiral groove 2301 drives air movement and forms a spiral airflow. The spiral airflow can form an airflow barrier, thereby preventing debris from entering the receiving cavity 101. The spiral direction of the second spiral groove 2301 corresponds to the rotation direction of the roller 30, so that the spiral airflow flows from the side of the mounting hole 102 near the receiving cavity 101 towards the side of the mounting hole 102 away from the receiving cavity 101, thus forming an airflow barrier against debris.

[0044] In some embodiments, a third spiral groove 103 is provided on the wall of the mounting hole 102 opposite to the second seal 23. When the roller 30 drives the second seal 23 to rotate, the airflow generated by the rotation of the second seal 23 forms a spiral airflow under the guidance of the third spiral groove 103, thereby blocking debris from entering the receiving cavity 101. The spiral direction of the third spiral groove 103 corresponds to the rotation direction of the roller 30, so that the spiral airflow flows from the side of the mounting hole 102 near the receiving cavity 101 towards the side of the mounting hole 102 away from the receiving cavity 101, thus blocking the debris. The outer peripheral surface of the second seal 23 facing the wall of the mounting hole 102 can be a cylindrical surface.

[0045] In some embodiments, a second spiral groove 2301 is provided on the outer wall of the second seal 23 facing the hole wall of the mounting hole 102, and a third spiral groove 103 is provided on the hole wall of the mounting hole 102 opposite to the second seal 23, so as to improve the ability of the second seal 23 to block debris.

[0046] Please refer to the following: Figure 2 and Figure 6 , Figure 6This is a side view of a partial structure of the oven 100 provided in this embodiment. The oven 100 also includes a mounting base 41, a bearing 42, and a protective cover 43. The mounting base 41 is fixedly connected to the side of the chamber 11 opposite to the receiving cavity 101 and is located near the mounting hole 102. The bearing 42 is mounted on the mounting base 41. The shaft end 32 of the roller 30 is connected to the bearing 42. The mounting base 41 is used to increase the installation space of the bearing 42, improve the ease of installation of the bearing 42, and help reduce the installation difficulty of the roller 30 and the chamber 11. The first seal 21 is also used to prevent metal dust generated by the roller 30 and the bearing 42 during rotation from entering the receiving cavity 101, thus avoiding metal contamination of the battery electrodes.

[0047] The protective cover 43 is connected to the mounting base 41 and seals the end of the roller 30. The protective cover 43 is used to protect the end of the roller 30 and the bearing 42, to prevent dust and other impurities from falling into the bearing 42, thus extending the service life of the bearing 42, and to prevent external dust and other impurities from entering the mounting hole 102.

[0048] The oven 100 also includes a first adjusting structure 451, which is mounted on the chamber 11 and is used to adjust the installation position of the roller 30 relative to the chamber 11. Alternatively, the oven 100 also includes a second adjusting structure 452, which is mounted on the chamber 11 and is used to adjust the installation position of the roller 30 relative to the chamber 11. The adjusting direction of the first adjusting structure 451 and the adjusting direction of the second adjusting structure 452 are set at an angle. Thus, by adjusting the installation position of the roller 30 relative to the housing 11 through the first adjustment structure 451 and / or the second adjustment structure 452, the installation position of the roller 30 can be easily adjusted, thereby improving the assembly accuracy of the roller 30, reducing the assembly difficulty, and when the process requirements change and the installation position of the roller 30 needs to be adjusted, the first adjustment structure 451 and / or the second adjustment structure 452 can be used to avoid redesigning the structure of the roller 30 and the housing 11, thereby improving the adaptability of the oven 100 to different process requirements and expanding the applicability of the oven 100.

[0049] In some embodiments, the oven 100 may include a first adjustment structure 451. The first adjustment structure 451 may be disposed on the chamber body 11 and may be used to adjust the mounting position of the mounting base 41 relative to the chamber body 11, thereby causing the roller 30 to move relative to the chamber body 11 via the mounting base 41. In some embodiments, the first adjustment structure 451 may be disposed on the mounting base 41 and may be used to adjust the mounting position of the bearing 42 relative to the mounting base 41, thereby causing the roller 30 to move relative to the chamber body 11 via the bearing 42.

[0050] In some embodiments, the oven 100 may include a second adjustment structure 452. The second adjustment structure 452 may be disposed on the mounting base 41 and may be used to adjust the mounting position of the bearing 42 relative to the mounting base 41, thereby causing the roller 30 to move relative to the chamber 11 via the bearing 42. In some embodiments, the second adjustment structure 452 may be disposed on the chamber 11 and may be used to adjust the mounting position of the mounting base 41 relative to the chamber 11, thereby causing the roller 30 to move relative to the chamber 11 via the mounting base 41.

[0051] In some embodiments, the oven 100 may include a first adjustment structure 451 and a second adjustment structure 452 to improve the flexibility of adjusting the mounting position of the roller 30. One of the first adjustment structure 451 and the second adjustment structure 452 is disposed on the housing 11 and is used to adjust the mounting position of the mounting base 41 relative to the housing 11, thereby driving the roller 30 to move relative to the housing 11 through the mounting base 41. The other of the first adjustment structure 451 and the second adjustment structure 452 is disposed on the mounting base 41 and is used to adjust the mounting position of the bearing 42 relative to the mounting base 41, thereby driving the roller 30 to move relative to the housing 11 through the bearing 42.

[0052] The angle between the adjustment direction of the first adjustment structure 451 and the adjustment direction of the second adjustment structure 452 can be an acute angle, a right angle, or an obtuse angle. Exemplarily, in this embodiment, the angle between the adjustment direction of the first adjustment structure 451 and the adjustment direction of the second adjustment structure 452 is a right angle. The first adjustment structure 451 can be used to adjust the installation position of the roller 30 relative to the housing 11 along the height direction of the oven 100. The second adjustment structure 452 can be used to adjust the installation position of the roller 30 relative to the housing 11 along the horizontal direction of the oven 100. In some embodiments, both the first adjustment structure 451 and the second adjustment structure 452 can also be used to adjust the installation position of the roller 30 relative to the housing 11 along other directions; this application does not specifically limit this.

[0053] The oven 100 also includes a bearing housing 44, a first locking fastener 441, and a second locking fastener 442. The bearing 44 is mounted on the bearing housing 42. A protective cover 43 is connected to the bearing housing 44. The protective cover 43 is connected to the mounting base 41 via the bearing housing 44. The first locking fastener 441 and the second locking fastener 442 are respectively connected to the bearing housing 44 and the mounting base 41. Both the first locking fastener 441 and the second locking fastener 442 have a locked state and an unlocked state. When both the first locking fastener 441 and the second locking fastener 442 are in the locked state, they together fix the bearing housing 44 to the mounting base 41. When both the first locking fastener 441 and the second locking fastener 442 are in the unlocked state, the bearing housing 44 is rotatable relative to the mounting base 41 around the first locking fastener 441. The bearing housing 44 has a through hole at one end near the first locking fastener 441, through which the first locking fastener 441 passes. The bearing housing 44 also has an arc-shaped groove at one end near the second locking fastener 442, within which the second locking fastener 442 is positioned. Both the first locking fastener 441 and the second locking fastener 442 can be configured as screws, retaining pins, etc.

[0054] In this embodiment, the second adjustment structure 452 can be disposed on the mounting base 41 and used to adjust the installation position of the bearing seat 44 relative to the mounting base 41, thereby driving the roller 30 to move relative to the box body 11 through the bearing 42. When it is necessary to adjust the installation position of the roller 30 relative to the box body 11 in the horizontal direction of the oven, the first locking fastener 441 and the second locking fastener 442 are adjusted from the locked state to the unlocked state. The position of the bearing seat 44 relative to the mounting base 41 is adjusted by the second adjustment structure 452. When the bearing seat 44 moves, it drives the roller 30 to move relative to the box body 11, thereby realizing the adjustment of the installation position of the roller 30 relative to the box body 11. After the installation position of the roller 30 is adjusted, the first locking fastener 441 and the second locking fastener 442 are adjusted from the unlocked state to the locked state, fixing the bearing seat 44 relative to the mounting base 41, thereby adjusting the installation position of the roller 30 relative to the box body 11 to the required position and maintaining it in that position.

[0055] Please see Figure 1In some embodiments, the oven 100 further includes a first hull 12 and a second hull 13. The first hull 12 and the second hull 13 are respectively installed in the receiving cavity 101. The first hull 12 and the second hull 13 are arranged at intervals along the height direction of the oven 100. The first hull 12 is located on the side of the second hull 13 away from the ground, or the second hull 13 is located on the side of the first hull 12 away from the ground. A roller 30 is located between the first hull 12 and the second hull 13. The roller 30 is used to drive the substrate 300 coated with slurry through the space between the first hull 12 and the second hull 13, which are used to dry the slurry to form a dried battery electrode. Air outlets are provided on the side of the first hull 12 facing the second hull 13 and on the side of the second hull 13 facing the first hull 12, and hot air blown from the air outlets is used to dry the slurry. The first hull 12 and the second hull 13 are also used to uniformly distribute the airflow, so that the air outlet blows out uniform and stable hot air, thereby improving the drying consistency of the slurry at different locations on the substrate 300, so that the slurry dries uniformly, and avoids problems such as wrinkling and cracking of the substrate 300 due to insufficient uniformity of drying rate.

[0056] In some embodiments, the guide roller 30 can be configured as a passive rotating roller, supporting the substrate 300 and rotating under the drag of the substrate 300. In some embodiments, the guide roller 30 can be configured as an active rotating roller, driving the substrate 300 to move along the conveying direction when the guide roller 300 rotates. The oven 100 also includes a drive connector 33, which is disposed at the end of the guide roller 30. The drive connector 33 is used to connect to a drive structure to drive the guide roller 30 to rotate.

[0057] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An oven (100), characterized in that, include: The box (11) has a receiving cavity (101) and the side wall of the box (11) has a mounting hole (102) communicating with the receiving cavity (101). The first sealing element (21) is disposed in the mounting hole (102). The first sealing element (21) is provided with a clearance hole (2101). A sealing groove (2102) is provided on the hole wall of the clearance hole (2101). The roller (30) is rotatably inserted into the clearance hole (2101).

2. The oven (100) according to claim 1, characterized in that, The sealing groove (2102) includes a plurality of sub-grooves (2103), which are arranged at intervals along the axial direction (X) of the roller (30), or the sealing groove (2102) is a first spiral groove (2104).

3. The oven (100) according to claim 1, characterized in that, The oven (100) also includes a limiting member (22), which is fixedly connected to the box body (11) and located at the opening of the mounting hole (102) near the receiving cavity (101). The first sealing member (21) is fixedly connected to the limiting member (22).

4. The oven (100) according to claim 1, characterized in that, The first sealing element (21) is a non-metallic part.

5. The oven (100) according to claim 1, characterized in that, The roller (30) is configured to be at least one, the number of mounting holes (102) is configured to be twice the number of rollers (30), the two ends of each roller (30) are respectively inserted into the mounting holes (102), and at least one mounting hole (102) is provided with the first seal (21).

6. The oven (100) according to claim 1, characterized in that, The oven (100) further includes a second seal (23) located in the mounting hole (102). The second seal (23) is fixedly connected to the roller (30) and located on the side of the first seal (21) away from the receiving cavity (101). The roller (30) and the wall of the clearance hole (2101) are spaced apart. On a plane perpendicular to the axial direction (X) of the roller (30), the orthographic projection of the second seal (23) at least partially covers the gap between the roller (30) and the wall of the clearance hole (2101).

7. The oven (100) according to claim 6, characterized in that, The second seal (23) has a second spiral groove (2301) on the outer wall of the side facing the mounting hole (102), and / or the mounting hole (102) has a third spiral groove (103) on the wall opposite to the second seal (23).

8. The oven (100) according to claim 1, characterized in that, The oven (100) further includes a first adjustment structure (451), which is mounted on the box body (11) and is used to adjust the installation position of the roller (30) relative to the box body (11). Alternatively, the oven (100) further includes a second adjustment structure (452), which is mounted on the box body (11) and is used to adjust the installation position of the roller (30) relative to the box body (11). The adjustment direction of the first adjustment structure (451) is set at an angle to the adjustment direction of the second adjustment structure (452).

9. The oven (100) according to claim 1, characterized in that, The oven (100) also includes a first hull (12) and a second hull (13), which are respectively installed in the accommodating cavity (101), and the roller (30) is located between the first hull (12) and the second hull (13).

10. A coating apparatus (1000), characterized in that, The device includes a coating apparatus (200) and an oven (100) as described in any one of claims 1 to 9, the coating apparatus (200) being used to coat a slurry onto a substrate (300), the oven (100) being disposed downstream of the substrate (300) in the conveying direction of the substrate (300), the oven (100) being used to dry the substrate (300) coated with the slurry.

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