Drying device

Abstract

The utility model belongs to the technical field of vacuum drying, and relates to a drying device which comprises a shell and a pipeline assembly arranged on the shell, a cavity is formed in the shell, a bearing assembly is rotationally arranged in the cavity, and the bearing assembly is used for bearing products. According to the vacuum drying device, the product is driven to rotate through the bearing assembly, so that the drying uniformity is improved when the product is subjected to vacuum drying treatment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vacuum drying, in particular to a drying device. BACKGROUND

[0002] In the development process of electronic devices, display panels are usually prepared by using a solution method process, but uneven drying often occurs during drying.

[0003] Therefore, the prior art still needs to be improved and developed. CONTENT OF THE INVENTION

[0004] Therefore, the present application provides a drying device, which adopts the technical scheme as follows:

[0005] A drying device comprises a shell and a pipeline assembly arranged on the shell, a cavity is arranged in the shell, a supporting assembly is rotatably arranged in the cavity, and the supporting assembly is used for carrying products.

[0006] Further, the drying device further comprises a driving device, a driving wheel is arranged on an output end of the driving device, and the driving wheel is in transmission connection with the supporting assembly.

[0007] Further, the supporting assembly comprises a supporting frame and a plurality of fixing seats arranged on the supporting frame, and the products are fixed on the supporting frame through the fixing seats.

[0008] Further, the supporting frame comprises a connecting portion and a plurality of supporting portions arranged on the connecting portion, the fixing seats are arranged on the supporting portions, and the driving wheel is in transmission connection with the connecting portion.

[0009] Further, the fixing seat is provided with a fixing groove for clamping the product, and the supporting portion is provided with a supporting groove for clamping the fixing seat.

[0010] Further, the shell comprises a plurality of side plates, a bottom plate and a top plate, and the plurality of side plates, the bottom plate and the top plate form the cavity in a closed manner.

[0011] Further, the pipeline assembly comprises a plurality of first connecting pipes and a plurality of second connecting pipes arranged on the side plates, and the first connecting pipes are in communication with the cavity through the connecting pieces and the second connecting pipes.

[0012] Further, a pressure sensor is further arranged in the cavity.

[0013] Further, the shell further comprises a fixing plate, a side plate groove is formed in the side plate, an accommodating groove is formed in the fixing plate, the connecting piece is arranged in the accommodating groove, and the connecting piece and the fixing plate are arranged in the side plate groove.

[0014] Further, the bottom plate and the top plate are respectively provided with clamping grooves for clamping the side plates, and the side plates are respectively inserted into the bottom plate and the top plate; and / or,

[0015] One of the two adjacent side plates is provided with an insertion part, and the other side plate is provided with an insertion groove, and the two adjacent side plates are inserted into each other.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] The product is driven to rotate by the supporting assembly, so that the uniformity of drying is improved when the product is subjected to vacuum drying treatment. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the scheme of the present application, the drawings needed in the following embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 is a structural schematic diagram of a drying device of an embodiment of the present application;

[0020] Figure 2 is an exploded view of the drying device of the embodiment of the present application;

[0021] Figure 3 is a sectional view of the drying device of the embodiment of the present application;

[0022] Figure 4 is Figure 3 is an enlarged schematic diagram of A in FIG.

[0023] Figure 5 is a structural schematic diagram of a supporting bracket;

[0024] Figure 6 is a structural schematic diagram of the supporting bracket;

[0025] Figure 7 is a structural schematic diagram of a side plate;

[0026] Figure 8 is a structural schematic diagram of the side plate;

[0027] Figure 9 is a structural schematic diagram of a connecting piece;

[0028] Figure 10 is a structural schematic diagram of the side plate.

[0029] 100, housing; 200, pipeline assembly; 101, cavity; 300, supporting assembly; 1, product; 2, driving device; 21, driving wheel; 3, supporting frame; 31, connecting part; 32, supporting part; 33, connecting hole; 321, supporting slot; 4, fixing seat; 41, fixing slot; 5, side plate; 51, side plate slot; 52, insertion part; 53, insertion slot; 54, pressure sensor; 6, connecting piece; 61, first connecting pipe; 62, second connecting pipe; 63, communicating cavity; 64, connecting hole; 7, fixing plate; 71, containing slot; 8, bottom plate; 80, clamping slot; 9, top plate. DETAILED DESCRIPTION

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the present application will be described with reference to the drawings described above and the specification set forth herein, and the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the terms "including", "comprising" and "having" and variations thereof herein are intended to be broad and encompass the terms "consisting of" and "consisting essentially of" and variations thereof. The terms "first", "second", and the like, as used herein do not have any specific meaning and are used only to distinguish one element from another.

[0031] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase that in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that the embodiments described herein are merely examples from a multitude of possible embodiments, which can be literally combined or otherwise combined to create additional embodiments.

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application. In addition, it should be understood that the specific implementation manners described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0033] In the present application, the orientation words such as "upper" and "lower" are generally used to refer to the upper and lower in the actual use or working state of the device, and specifically refer to the drawing direction in the drawings, and "inner" and "outer" refer to the outline of the device. In addition, in the description of the present application, the term "comprising" means "including but not limited to". The terms first, second, third, etc. are only used as labels and do not impose numerical requirements or establish sequences.

[0034] In the present application, the relationship between the objects described by "and / or" represents that there can be three kinds of relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone. Wherein A and B can be singular or plural.

[0035] In the present application, "at least one" means one or more, and "multiple" means two or more. "At least one", "at least one of the following" or the like means any combination of the items, including single item or any combination of multiple items. For example, "at least one of a, b, or c", or "at least one of a, b, and c" can represent a, b, c, a-b (i.e. a and b), a-c, b-c, or a-b-c, wherein a, b, and c can be single or multiple.

[0036] Various embodiments of the present application can exist in the form of a range; it should be understood that the description in the form of a range is only for the convenience and brevity, and should not be understood as a hard limit on the scope of the present application; therefore, it should be considered that the described range has been specifically disclosed all possible sub-ranges and single values within the range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5, and 6, regardless of the range. In addition, whenever a numerical range is indicated in the present application, it refers to any cited number (fraction or integer) within the indicated range.

[0037] In order for those skilled in the art to better understand the scheme of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings.

[0038] The deposition methods of light-emitting layer in light-emitting devices mainly include vacuum evaporation and solution process. Vacuum evaporation is suitable for small organic molecules, and has the advantages of uniform and good film formation, relatively mature technology, but large equipment investment, low material utilization rate, and low mask alignment accuracy for large-size products. Solution process includes spin coating, inkjet printing, nozzle coating method, etc., which is suitable for polymer materials and soluble small molecules, and has the advantages of low equipment cost, outstanding advantages in large-scale and large-size production, especially the inkjet printing technology, which can accurately spray ink solution into the pixel area to form an organic thin film. After inkjet printing is completed, the product still needs to be vacuum dried.

[0039] However, the existing vacuum drying process has the following problem: the solvent in the printed film layer located around the product evaporates faster, while the solvent in the printed film layer located in the middle of the product evaporates slower. As a result, after the vacuum drying process, the printed film layer in the middle area is often thicker (more moist), while the printed film layer in the surrounding area is thinner (drier), resulting in uneven film thickness and affecting the display effect.

[0040] As attached Figure 1 To be continued Figure 10 As shown, this application provides a drying device that adopts the following technical solution:

[0041] A drying apparatus includes a housing 100 and a pipe assembly 200 disposed on the housing 100. A cavity 101 is provided within the housing 100, and a support assembly 300 is rotatably disposed within the cavity 101. The support assembly 300 is used to support a product 1. This application improves the uniformity of drying during vacuum drying by using the support assembly 300 to rotate the product 1.

[0042] For example, product 1 is a display substrate that is to be dried after the deposition solution is applied.

[0043] Furthermore, the pipe assembly 200 is used to connect to a vacuum pump, and during operation, the cavity 101 is a vacuum environment under the operation of the vacuum pump. The drying device is used to perform vacuum drying treatment on the display panel.

[0044] As attached Figure 2 To be continued Figure 3 and attached Figure 5 To be continued Figure 6 As shown, the drying device further includes a driving device 2, with a driving wheel 21 mounted on its output end. The driving wheel 21 is connected to the support assembly 300 via a transmission connection. During drying, the driving device 2 is activated, causing it to rotate the support assembly 300 via the driving wheel 21. This, in turn, causes the product 1 to rotate, ensuring that the solvent evaporation rate of the printed film layer in the middle area and the printed film layer in the peripheral area of ​​the product 1 is the same, improving the uniformity of drying and resulting in a uniform printed film layer.

[0045] As attached Figure 2 To be continued Figure 6As shown, further, the supporting assembly 300 comprises a supporting frame 3 and a plurality of fixing seats 4 arranged on the supporting frame 3, and the product 1 is fixed on the supporting frame 3 through the fixing seats 4. The plurality of products 1 are fixed on the supporting frame 3, which is stable and reliable, improves the operation stability, dries the product 1 in a stable state, improves the uniformity of drying, and further makes the film thickness after drying more uniform.

[0046] As shown in the accompanying drawings, Figure 2 to the accompanying drawings, Figure 6 As shown, further, the supporting frame 3 comprises a connecting part 31 and a plurality of supporting parts 32 arranged on the connecting part 31, and the fixing seat 4 is arranged on the supporting part 32, and the driving wheel 21 is in transmission connection with the connecting part 31. The plurality of supporting parts 32 improve the stability of the product 1, dry the product 1 in a stable state, improve the uniformity of drying, and further make the film thickness after drying more uniform.

[0047] Further, the supporting part 32 is arranged as four, and the four supporting parts 32 are arranged vertically on the connecting part 31, and the supporting frame 3 is in a symmetrical structure.

[0048] Further, the connecting part 31 is further provided with a connecting hole 33, the driving wheel 21 is configured as a gear, and the inner wall of the connecting hole 33 is provided with a driving tooth in meshing connection with the gear.

[0049] As shown in the accompanying drawings, Figure 2 to the accompanying drawings, Figure 6 As shown, further, the fixing seat 4 is provided with a fixing groove 41 for clamping the product 1, and the supporting part 32 is provided with a supporting groove 321 for clamping the fixing seat 4. The clamping connection mode facilitates the connection of the product 1 and the supporting part 32, and facilitates the removal of the plurality of products 1 after drying, and the clamping connection mode can improve the connection stability.

[0050] Further, during installation, the product 1 is first placed into the installation space formed by the four supporting parts 32, so that the product 1 is aligned with the supporting groove 321, and then the fixing seat 4 is clamped in sequence, so that the fixing seat 4 is clamped in the supporting groove 321 and the product 1 is clamped in the fixing groove 41, and the installation is completed. During disassembly, the product 1 can be removed by pulling out all the fixing seats 4.

[0051] Further, the supporting frame 3 is provided with a plurality of supporting grooves 321, and the fixing seat 4 is arranged in the supporting groove 321.

[0052] It is understandable that by setting multiple support slots 321, the support frame 3 can support multiple products 1. Specifically, the multiple products 1 have a plane, and the arrangement direction of the multiple products 1 is perpendicular to the extension direction of the plane of the products 1, which can improve drying efficiency.

[0053] As attached Figure 1 To be continued Figure 4 and attached Figure 7 To be continued Figure 9 As shown, the housing 100 further includes a plurality of side plates 5, a bottom plate 8, and a top plate 9. The plurality of side plates 5, bottom plates 8, and top plates 9 enclose the cavity 101. The bottom plate 8 and top plate 9 are interlocked with the side plates 5 and are sealed together for easy assembly. At the same time, when a vacuum environment is formed inside the cavity 101, atmospheric pressure continuously acts on the outer peripheral surfaces of the bottom plate 8 and top plate 9, making the interlocking joints more secure and ensuring the airtightness of the cavity 101.

[0054] As attached Figure 1 To be continued Figure 4 and attached Figure 7 To be continued Figure 9 As shown, the piping assembly 200 further includes a plurality of first connecting pipes 61 and a plurality of second connecting pipes 62 disposed on the side plate 5. The first connecting pipes 61 are connected to the cavity 101 via connectors 6 and the second connecting pipes 62. The first connecting pipes 61 are used to connect to a vacuum pump. After the vacuum pump is started, low-pressure air is formed in the cavity 101. Due to the decrease in external pressure, the solvent in the product 1 diffuses to the surface of the product 1 through pressure difference or concentration difference. The solvent gains sufficient kinetic energy on the film surface and, after overcoming the intermolecular attraction, escapes into the low-pressure air in the cavity 101, where it is then removed by the vacuum pump, thus drying the product 1. At the same time, the first connecting pipes 61 and the second connecting pipes 62 disposed on the side plate 5 can make the gas atmosphere in the cavity more uniform, improving the drying uniformity of multiple products 1.

[0055] Furthermore, this application adopts a modular structure, namely, the first connecting pipe 61 is used to connect the vacuum pump, the second connecting pipe 62 is used to connect the cavity 101, and the connector 6 is used to connect the first connecting pipe 61 and the second connecting pipe 62. The modular structure facilitates disassembly and cleaning of the internal parts one by one. At the same time, it does not affect the actual installation while facilitating cleaning, thus ensuring the stability of the connection.

[0056] Further, the side plate 5 is provided with four first connecting pipes 61, four second connecting pipes 62 and a connecting piece 6, and the vacuum pump works from four sides of the drying device, which is beneficial to the formation of a vacuum environment with uniform pressure in the cavity 101, improves the uniformity of drying, and further makes the printed film layer display uniformly.

[0057] As shown in FIGS. 1 to 3, further, the cavity 101 is provided with a pressure sensor 54. Figure 1 Figure 4 As shown in FIGS. 1 to 3, further, the cavity 101 is provided with a pressure sensor 54.

[0058] The pressure sensor 54 is convenient for obtaining the pressure in the cavity 101 in time, which is beneficial to timely adjustment and improves the uniformity and drying rate of drying.

[0059] Optionally, the pressure sensor 54 is arranged on the side plate 5.

[0060] As shown in FIGS. 1 to 3, further, the cavity 101 is provided with a pressure sensor 54. Figure 2 Figure 4 As shown in FIGS. 1 to 3, further, the cavity 101 is provided with a pressure sensor 54. Figure 7 Figure 10 As shown in FIGS. 1 to 3, further, the cavity 101 is provided with a pressure sensor 54.

[0061] Further, the number of the first connecting pipes 61 and the second connecting pipes 62 is different, the connecting piece 6 is provided with a connecting hole 64 for connecting the first connecting pipes 61 and the second connecting pipes 62, and optionally, the first connecting pipes 61 are provided with three, and the second connecting pipes 62 are provided with four. The modular structure does not affect the actual installation under the premise of facilitating cleaning, and ensures the stability of connection.

[0062] Further, the connecting piece 6 is provided with a communication cavity 63 for communicating the first connecting pipes 61 and the second connecting pipes 62, which is beneficial to the formation of a vacuum environment with uniform pressure in the cavity 101, improves the uniformity of drying, and further makes the printed film layer display uniformly.

[0063] As shown in FIGS. 1 to 3, further, the cavity 101 is provided with a pressure sensor 54. Figure 2 Figure 7 As shown in FIGS. 1 to 3, further, the cavity 101 is provided with a pressure sensor 54. Figure 8 As shown in FIGS. 1 to 3, further, the cavity 101 is provided with a pressure sensor 54. ​​​​

[0064] Two adjacent side plates 5 are provided with a plug-in part 52 on one of the side plates 5 and a plug-in slot 53 on the other side plate 5, and the two adjacent side plates 5 are plug-in matched with each other. The bottom plate 8, the top plate 9 and the side plates 5 form the cavity 101. The bottom plate 8 and the top plate 9 are plug-in matched with the side plates 5 and are sealingly connected, which is convenient for assembly, and when a vacuum environment is formed in the cavity 101, the atmospheric pressure continuously acts on the outer circumferential surface of the bottom plate 8 and the top plate 9, so that the plug-in matched part is more firm, and the sealing property of the cavity 101 is ensured. The side plates 5 are plug-in matched and sealingly connected, which is convenient for assembly, and the two adjacent side plates 5 are limited to each other, so that when a vacuum environment is formed in the cavity 101, the atmospheric pressure continuously acts on the outer circumferential surface of the side plates 5, so that the plug-in matched part is more firm, and the sealing property of the cavity 101 is ensured.

[0065] Further, the bottom plate 8 is provided with a mounting hole for mounting the driving device 2, and the driving device 2 is fixed in the mounting hole, and of course, the driving device 2 can also be fixed on the bottom plate 8.

[0066] Obviously, the above-described embodiments are only some of the embodiments of the present application, but not all the embodiments. The preferred embodiments of the present application are shown in the drawings, but do not limit the patent scope of the present application. The present application can be implemented in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or make equivalent replacements to some technical features. Any equivalent structure made by using the content of the specification and drawings, directly or indirectly applied to other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A drying apparatus, characterized by, The utility model provides a drying device, including shell (100) and pipeline assembly (200) set on shell (100), be provided with cavity (101) in shell (100), the supporting assembly (300) is rotationally arranged in cavity (101), and the supporting assembly (300) is used for carrying product (1).

2. The drying apparatus according to claim 1, characterized by The drying device further comprises a driving device (2), and a driving wheel (21) is arranged on an output end of the driving device (2). The driving wheel (21) is in transmission connection with the supporting assembly (300).

3. The drying apparatus of claim 2, wherein The supporting assembly (300) comprises a supporting frame (3) and a plurality of fixing seats (4) arranged on the supporting frame (3). The product (1) is fixed on the supporting frame (3) through the fixing seats (4).

4. The drying apparatus of claim 3, wherein The supporting frame (3) comprises a connecting portion (31) and a plurality of supporting portions (32) arranged on the connecting portion (31). The fixing seats (4) are arranged on the supporting portions (32). The driving wheel (21) is in transmission connection with the connecting portion (31).

5. The drying apparatus of claim 4, wherein The fixing seat (4) is provided with a fixing groove (41) for clamping the product (1). The supporting portion (32) is provided with a supporting groove (321) for clamping the fixing seat (4).

6. The drying apparatus according to any one of claims 1 to 5, characterized in that The shell (100) comprises a plurality of side plates (5), a bottom plate (8) and a top plate (9). The plurality of side plates (5), the bottom plate (8) and the top plate (9) form the cavity (101) in a closed manner.

7. The drying apparatus of claim 6, wherein The pipeline assembly (200) comprises a plurality of first connecting pipes (61) and a plurality of second connecting pipes (62) arranged on the side plates (5). The first connecting pipes (61) are in communication with the cavity (101) through the connecting pieces (6) and the second connecting pipes (62).

8. The drying apparatus of claim 1, wherein The cavity (101) is further provided with a pressure sensor (54).

9. The drying apparatus of claim 7, wherein The shell (100) further comprises a fixing plate (7). The side plate (5) is provided with a side plate groove (51). The fixing plate (7) is provided with a containing groove (71). The connecting piece (6) is arranged in the containing groove (71). The connecting piece (6) and the fixing plate (7) are arranged in the side plate groove (51).

10. The drying apparatus of claim 6, wherein The bottom plate (8) and the top plate (9) are respectively provided with clamping grooves (80) for clamping the side plates (5). The side plates (5) are respectively inserted and matched with the bottom plate (8) and the top plate (9); and / or Adjacent two side plates (5) are provided with an insertion portion (52) on one side plate (5) and an insertion groove (53) on the other side plate (5). The adjacent two side plates (5) are inserted and matched with each other.

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