Lithium battery drying oven and sealing door thereof

Abstract

The utility model discloses a lithium battery drying oven and a sealing door, and belongs to the technical field of lithium battery production, the lithium battery drying oven comprises an upper side support frame, a lower side support frame and a plurality of door plate assemblies arranged between the upper side support frame and the lower side support frame, and the upper side support frame and the lower side support frame are both provided with guide rail assemblies corresponding to the door plate assemblies. The guide rail assemblies of every two adjacent door plate assemblies are arranged in a staggered mode in the first direction, and the door plate assemblies can reciprocate on the guide rail assemblies in the first direction. The upper side supporting frame and the lower side supporting frame are each provided with a driving assembly, the driving assemblies drive the door plate assembly to reciprocate in the second direction, and the second direction is perpendicular to the first direction. The utility model can solve the problem that the loading capacity of the cavity is possibly influenced because the two door bodies of the left door and the right door of the drying oven occupy a certain space when being opened and closed in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a lithium battery drying oven and a sealing door. Background Art

[0002] At present, lithium-ion batteries are mainly dried in vacuum drying ovens. The vacuum drying process is to place the lithium battery in a closed drying chamber, evacuate the vacuum system and continuously heat the lithium battery, so that the water inside the lithium battery diffuses to the surface through pressure difference or concentration difference. The water molecules gain enough kinetic energy on the surface of the lithium battery, and after overcoming the mutual attraction between molecules, they escape to the low-pressure space of the vacuum chamber and are then pumped away by the vacuum pump.

[0003] The traditional drying line oven door opening method is to open the door up and down, which makes the volume of the oven loaded with batteries relatively small. The up and down door opening is regulated and controlled by the cylinders on both sides. The cylinder control is prone to problems such as slow door opening speed and low work efficiency due to inconsistent air pressure of the cylinders at both ends. Since the up and down door opening method has limitations, the door opening method has also been improved in the prior art. For example, the Chinese patent document with announcement number CN115654853B discloses an oven and battery drying system, including a box body, a material tray, a heating module and an electric door, the box body is provided with at least two accommodating chambers, and one side of the accommodating chamber forms a door; the material tray is provided with a accommodating groove, the battery is inserted in the accommodating groove, and the material tray is inserted into the accommodating chamber from the door; the heating module slides relative to the box body below the material tray, and the heating module is used to heat and dry the battery; the electric door includes at least two door bodies, a support frame, a drive module, and a limit module, the drive module is arranged on the support frame, and the drive module is used to drive the door body; the limit module is arranged on the support frame, and the limit module is used to lock or unlock the door body on the support frame. The two doors of the electric door of the oven are opened left and right, and the movement of the door can be controlled to close the corresponding storage door, and then the heating module in the storage cavity is controlled to dry the battery. However, the two doors of the oven open left and right will occupy a certain space when opening and closing, which may affect the loading capacity of the cavity. Utility Model Content

[0004] The utility model aims to provide a lithium battery drying oven and a sealed door, so as to solve the problem in the prior art that the two doors of the oven on the left and right sides take up a certain space when opening and closing, which may affect the loading capacity of the cavity.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a sealed door of a lithium battery drying oven, comprising an upper support frame, a lower support frame and a plurality of door panel assemblies arranged therebetween, the upper support frame and the lower support frame are both provided with guide rail assemblies corresponding to the door panel assemblies, and is characterized in that the guide rail assemblies of two adjacent door panel assemblies are staggered in a first direction, and the door panel assembly can reciprocate on the guide rail assembly along the first direction; the upper support frame and the lower support frame are both provided with a driving assembly, and the driving assembly drives the door panel assembly to reciprocate in a second direction, and the second direction is perpendicular to the first direction.

[0006] Furthermore, the door panel assembly is driven in a first direction by a servo mechanism, the servo mechanism includes a servo motor, a synchronous belt and a pulley, the servo motor drives the pulley to rotate to drive the synchronous belt to move, and the synchronous belt is connected to the door panel assembly.

[0007] Furthermore, the pulley is provided with gear teeth, the synchronous belt is a toothed belt, and the synchronous belt and the pulley are meshed with each other.

[0008] Furthermore, it also includes a servo control unit, which is electrically connected to the servo motor.

[0009] Furthermore, the driving assembly includes a cylinder mechanism and a pressure regulating valve, the cylinder mechanism is connected to the door panel assembly, the pressure regulating valve is arranged on the outside of the cylinder mechanism and connected to the cylinder mechanism, and the pressure regulating valve adjusts the operating speed of the cylinder mechanism.

[0010] Furthermore, the pressure regulating valve is provided with a locking structure, and the locking structure is used to lock when the air pressure is unstable during the operation of the cylinder mechanism.

[0011] Furthermore, the lower support frame is provided with a plurality of photoelectric sensing mechanisms, and the photoelectric sensing mechanisms are used to detect the moving position of the door panel assembly in the first direction or the second direction.

[0012] Furthermore, a plurality of reinforcing ribs are provided on the back side of the door panel assembly, and the plurality of reinforcing ribs are staggered in the longitudinal and transverse directions.

[0013] The utility model also provides a lithium battery drying oven, comprising a box body, wherein a plurality of cavities for accommodating batteries are arranged in the box body, and the characteristic is that a sealing door as described above is arranged at the opening of the cavity, and the door panel assembly is used to seal the cavity.

[0014] Furthermore, the two cavities on the same side are arranged corresponding to adjacent door panel assemblies.

[0015] Compared with the existing known technologies, the technical solution provided by the utility model has the following beneficial effects:

[0016] The utility model discloses a sealed door of a lithium battery drying oven, wherein the guide rail assemblies of two adjacent door panel assemblies are staggered in a first direction, and the door panel assemblies can reciprocate on the guide rail assemblies along the first direction. When the door panel assemblies move to the adjacent door panel assemblies and stop, the staggered guide rails provide staggered spaces, and the two adjacent door panel assemblies can overlap in spatial positions, which saves space compared to the traditional left-right door-opening oven, so that the door panel assemblies do not affect the cavity loading capacity in the open and closed state, thereby improving the production capacity. The door panel assemblies reciprocate in the second direction, and the position of the door panel assemblies to the oven door can be adjusted to close or open the oven door.

[0017] It will be apparent that elements or features described above in the context of a single embodiment may be used alone or in combination in other embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the drawings, the sizes and proportions do not represent the sizes and proportions of actual products. The drawings are merely illustrative, and some non-essential elements or features are omitted for clarity.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0020] Figure 2 It is an embodiment of the utility model Figure 1 A schematic diagram of the front view structure of

[0021] Figure 3 It is an embodiment of the utility model Figure 1 Schematic diagram of the side structure.

[0022] Description of Reference Numerals

[0023] 100, upper support frame; 200, lower support frame; 300, door panel assembly; 400, guide rail assembly; 500, servo mechanism; 600, photoelectric sensing mechanism. DETAILED DESCRIPTION

[0024] The present invention will be described in detail with reference to the accompanying drawings. What is described here is only a preferred embodiment of the present invention, and those skilled in the art can think of other ways to implement the present invention based on the preferred embodiment, and other ways also fall within the scope of the present invention.

[0025] Example

[0026] Reference Figure 1-Figure 3The present embodiment provides a sealed door of a lithium battery drying oven, comprising an upper support frame 100, a lower support frame 200, and a plurality of door panel assemblies 300 disposed therebetween. The upper support frame 100 and the lower support frame 200 are both provided with guide rail assemblies 400 corresponding to the door panel assemblies 300, and the guide rail assemblies 400 corresponding to different door panel assemblies 300 are segmented guide rails. The guide rail assemblies 400 of two adjacent door panel assemblies 300 are staggered in a first direction, and the door panel assemblies 300 can reciprocate along the first direction on the guide rail assemblies 400. When the door panel assemblies 300 move to the position of the adjacent door panel assemblies 300 and stop, the staggered guide rail assemblies 400 provide staggered spaces, and the two adjacent door panel assemblies 300 can overlap in spatial position, which saves space compared to the traditional left-right door oven, so that the door panel assemblies 300 do not affect the cavity loading capacity in the open and closed state, thereby improving the production capacity. The upper support frame 100 and the lower support frame 200 are both provided with a driving assembly, which drives the door panel assembly 300 to reciprocate in the second direction. The door panel assembly 300 reciprocates in the second direction, and the position of the door panel assembly 300 to the oven door can be adjusted to close or open the oven door. The second direction is perpendicular to the first direction, and the movement of the door panel assembly 300 in the two directions does not interfere with each other, and different functions can be exerted.

[0027] It should be noted that, in this embodiment, for ease of understanding, Figure 1 As shown, the first direction represents the X-axis direction of the coordinate space, representing the left-right direction; the second direction represents the Y-axis direction of the coordinate space, representing the front-back direction; and the Z-axis direction represents the up-down direction.

[0028] Furthermore, the door panel assembly 300 is driven in the first direction by a servo mechanism 500, and the servo mechanism 500 includes a servo motor, a synchronous belt and a pulley. The servo motor drives the pulley to rotate to drive the synchronous belt to move, and the synchronous belt is connected to the door panel assembly 300. The servo control unit is electrically connected to the servo motor. The servo motor can rotate forward or reverse under the control of the servo control unit, and the door panel assembly 300 can reciprocate in the first direction. Specifically, the pulley is provided with gear teeth, and the synchronous belt is a toothed belt, and the synchronous belt and the pulley are meshed with each other. This toothed belt and gear transmission structure has the advantages of simple structure, smooth transmission, buffering and vibration absorption, etc., and can transmit power between large axis spacing and multiple axes; and it also has the characteristics of low cost, no need for lubrication, and easy maintenance.

[0029] In this embodiment, as a further improvement, the driving assembly includes a cylinder mechanism and a pressure regulating valve. The cylinder mechanism is connected to the door panel assembly 300. The pressure regulating valve is arranged on the outside of the cylinder mechanism and connected to the cylinder mechanism. The pressure regulating valve adjusts the running speed of the cylinder mechanism. Each cylinder mechanism is equipped with two independent pressure regulating valves, which are arranged on the outside of the cylinder mechanism for convenient operation and adjustment. The pressure regulating valve is provided with a locking structure, which is used to lock when the air pressure is unstable during the operation of the cylinder mechanism to prevent the unstable air pressure from having an adverse effect on the operation of the cylinder mechanism.

[0030] In order to maintain the accuracy of the door panel assembly 300 during the movement process and ensure that the door panel assembly 300 can move to the corresponding position, it is necessary to detect the moving position of the door panel assembly 300 through a position detection mechanism. In this embodiment, the lower support frame 200 is provided with a plurality of photoelectric sensing mechanisms 600, which are used to detect the moving position of the door panel assembly 300 in the first direction or the second direction. The photoelectric sensing mechanism 600 is mainly a slot-type photoelectric switch, which detects the running position of the door panel assembly 300 and feeds back to the control terminal with an I / O signal. In addition, the structural strength of the door panel assembly 300 will also affect the sealing of the drying oven. The door panel assembly 300 has good structural strength and is not easy to deform, so that it can be closely combined with the drying oven. For this reason, a plurality of reinforcing ribs are provided on the back of the door panel assembly 300, and the plurality of reinforcing ribs are arranged in a staggered manner longitudinally and transversely. The reinforcing ribs are welded to form a nine-square design, and the door panel assembly 300 can be operated for a long time in a negative pressure and high temperature environment to achieve a non-deformed state, thereby ensuring the flatness consistency of the door panel assembly 300, and at the same time ensuring the pressure-maintaining and non-leakage requirements of the drying oven.

[0031] Another aspect of the present application also proposes a lithium battery drying oven, including a box body, a plurality of cavities for accommodating batteries are arranged in the box body, the above-mentioned sealing door is arranged at the opening of the cavity, and the door panel assembly 300 is used to seal the cavity. The box body has a door opening mode of left and right translation, and the door panel assembly 300 is driven by a servo motor. The box body is provided with four cavities, and the sealing door of each cavity has an independent system control. The two cavities on the same side are arranged corresponding to the adjacent door panel assemblies 300, and the two cavities on the same side open the doors to utilize each other's space. When the door of cavity A is opened, the door panel assembly 300 moves to the position of cavity B and stops; when the door of cavity B is opened, the door panel assembly 300 moves to the cavity door of cavity A and stops, which fully improves the space utilization rate!

[0032] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "front", "rear", "left", "right", "up", "down", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The protection scope of the present invention is limited only by the claims. Thanks to the teachings of the present invention, those skilled in the art will easily recognize that alternative structures to the structures disclosed in the present invention can be used as feasible alternative embodiments, and the embodiments disclosed in the present invention can be combined to generate new embodiments, which also fall within the scope of the appended claims.

Claims

1. A sealed door of a lithium battery drying oven, comprising an upper support frame (100), a lower support frame (200) and a plurality of door panel assemblies (300) arranged therebetween, wherein the upper support frame (100) and the lower support frame (200) are both provided with guide rail assemblies (400) corresponding to the door panel assemblies (300), characterized in that: The guide rail assemblies (400) of two adjacent door panel assemblies (300) are staggered in a first direction, and the door panel assemblies (300) can reciprocate along the first direction on the guide rail assemblies (400); the upper support frame (100) and the lower support frame (200) are both provided with a driving assembly, and the driving assembly drives the door panel assemblies (300) to reciprocate in a second direction, and the second direction is perpendicular to the first direction.

2. The sealed door of a lithium battery drying oven according to claim 1, characterized in that: The door panel assembly (300) is driven in a first direction by a servo mechanism (500), wherein the servo mechanism (500) comprises a servo motor, a synchronous belt and a pulley, wherein the servo motor drives the pulley to rotate to drive the synchronous belt to move, and the synchronous belt is connected to the door panel assembly (300).

3. The sealed door of a lithium battery drying oven according to claim 2, characterized in that: The pulley is provided with gear teeth, the synchronous belt is a toothed belt, and the synchronous belt and the pulley are meshed with each other.

4. The sealed door of a lithium battery drying oven according to claim 2, characterized in that: It also includes a servo control unit, which is electrically connected to the servo motor.

5. The sealed door of a lithium battery drying oven according to claim 1, characterized in that: The driving assembly comprises a cylinder mechanism and a pressure regulating valve, wherein the cylinder mechanism is connected to the door panel assembly (300), the pressure regulating valve is arranged outside the cylinder mechanism and connected to the cylinder mechanism, and the pressure regulating valve adjusts the operating speed of the cylinder mechanism.

6. The sealed door of a lithium battery drying oven according to claim 5, characterized in that: The pressure regulating valve is provided with a locking structure, and the locking structure is used for locking when the air pressure is unstable during the operation of the cylinder mechanism.

7. The sealed door of a lithium battery drying oven according to claim 1, characterized in that: The lower support frame (200) is provided with a plurality of photoelectric sensing mechanisms (600), and the photoelectric sensing mechanisms (600) are used to detect the moving position of the door panel assembly (300) in the first direction or the second direction.

8. The sealed door of a lithium battery drying oven according to claim 1, characterized in that: The back of the door panel assembly (300) is provided with a plurality of reinforcing ribs, which are arranged in a staggered manner in the longitudinal direction and the transverse direction.

9. A lithium battery drying oven, comprising a box body, wherein a plurality of cavities for accommodating batteries are arranged in the box body, characterized in that: A sealing door as described in any one of claims 1 to 8 is provided at the opening of the cavity, and the door panel assembly (300) is used to seal the cavity.

10. A lithium battery drying oven according to claim 9, characterized in that: The two cavities on the same side are arranged corresponding to adjacent door panel assemblies (300).

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