Drying device and safe drying system

Abstract

The utility model provides a drying device which can be used for drying a piece to be dried and comprises a shell and an electromagnetic wave emitting plate. The shell and the to-be-dried piece are arranged at an interval; a ventilation air duct is formed in the shell, an air outlet of the ventilation air duct is formed in the side, close to a to-be-dried piece, of the shell, and airflow output by the air outlet of the ventilation air duct can flow to the to-be-dried piece; the electromagnetic wave emitting plate is arranged on the side, facing the to-be-dried piece, of the shell and can emit electromagnetic waves and project the electromagnetic waves to the to-be-dried piece, so that the to-be-dried piece is heated, and water vapor is emitted. Air flow output by the ventilation air channel can drive water vapor to flow to the outside. The drying device can improve the drying efficiency and the drying uniformity so as to improve the production efficiency of the battery, reduce the manufacturing cost of the battery and guarantee the overall performance of batch production of the battery.

Description

Technical Field

[0001] The utility model relates to the technical field of drying, in particular to a drying device and a safe drying system. Background Art

[0002] With the rapid development of the new energy industry, the power and energy storage battery industries have begun to enter the era of large-scale manufacturing, thereby meeting the growing market demand for power and energy storage batteries.

[0003] The mass production of power and energy storage batteries will require higher standards for battery manufacturing efficiency and quality consistency. Especially the drying process of battery pole preparation. Traditional battery pole drying adopts the method of blowing drying, which has low drying efficiency, high energy consumption and poor drying uniformity. This directly affects the production efficiency, manufacturing cost and overall performance of the battery. Utility Model Content

[0004] The purpose of this application is to provide a drying device and a safe drying system with high drying efficiency and good drying uniformity, so as to improve the production efficiency of batteries, reduce the manufacturing cost of batteries, and ensure the overall performance of battery mass production.

[0005] In order to solve the above technical problems, this application adopts the following technical solutions:

[0006] According to one aspect of the present application, the present application provides a drying device, which can be used to dry items to be dried, and the drying device includes: a shell and an electromagnetic wave emitting plate; the shell and the items to be dried are arranged at a distance; a ventilation duct is opened in the shell, and the air outlet of the ventilation duct is arranged on a side of the shell close to the items to be dried, and the airflow output from the air outlet of the ventilation duct can flow onto the items to be dried; the electromagnetic wave emitting plate is arranged on a side of the shell facing the items to be dried, and the electromagnetic wave emitting plate can emit electromagnetic waves and project them onto the items to be dried, so that the items to be dried are heated and emit water vapor; wherein the airflow output by the ventilation duct can drive the water vapor to flow to the outside.

[0007] In some embodiments, the electromagnetic wave emitting plate is arranged obliquely relative to the object to be dried; and the distance from the electromagnetic wave emitting plate to the object to be dried gradually increases along the flow direction of the water vapor.

[0008] In some embodiments, an angle α is formed between the electromagnetic wave emitting plate and the object to be dried, and the angle α ranges from 0° to 45°.

[0009] In some embodiments, there are at least two electromagnetic wave emitting plates, at least two of which are arranged opposite to each other, and the ventilation duct can be located between any two adjacent electromagnetic wave emitting plates.

[0010] In some embodiments, there are two electromagnetic wave emitting plates; the ventilation duct includes at least two air outlet ducts, and the distance between the two air outlet ducts gradually increases in the direction toward the object to be dried.

[0011] In some embodiments, an angle β is formed between the air outlet duct and the object to be dried, and the angle β is in the range of 90° to 135°.

[0012] In some embodiments, the ventilation duct further includes a supplementary air duct, and the supplementary air duct is located between the two air outlet ducts to drive the water vapor flow between the two electromagnetic wave emitting plates.

[0013] In some embodiments, a guide surface is formed on a side of the shell facing the object to be dried, an air outlet of the ventilation duct is opened in the middle of the guide surface, and the guide surface is used to form a guide duct with the object to be dried.

[0014] In some embodiments, the ventilation duct further comprises an air inlet duct, and the diameter of the air inlet duct gradually decreases in the direction toward the object to be dried.

[0015] In some embodiments, the electromagnetic wave emitting plate is an infrared emitting plate or a laser emitting plate.

[0016] A safe drying system, comprising: an electrode sheet and a drying device as described above; the electrode sheet is laid flat in a horizontal direction; the drying device is arranged opposite to the electrode sheet, and the drying device comprises the electromagnetic wave emitting plate and the ventilation duct; the electromagnetic wave emitting plate emits electromagnetic waves and projects them onto the electrode sheet, so that the electrode sheet is heated and emits water vapor; the airflow output by the ventilation duct can drive the water vapor to flow to the outside.

[0017] It can be seen from the above technical solution that the present application has at least the following advantages and positive effects:

[0018] In the present application, when the drying device dries the workpiece to be dried, the electromagnetic wave emitting plate emits electromagnetic waves to the workpiece to be dried to heat and dry the workpiece to be dried. The workpiece to be dried is heated to generate water vapor. The ventilation duct in the shell is ventilated so that the airflow flows to the workpiece to be dried through the air outlet of the ventilation duct. When the gas flows through the workpiece to be dried, the airflow can flow toward the outside of the electromagnetic wave emitting plate to drive the water vapor to flow out; it can also facilitate the conversion of liquid in the workpiece to be dried into water vapor. The drying device can improve the drying efficiency and the uniformity of drying, so as to improve the production efficiency of the battery, reduce the manufacturing cost of the battery, and ensure the overall performance of the battery mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the front view of the drying device of the utility model.

[0020] Figure 2 It is a bottom view of the drying device of the utility model.

[0021] Figure 3 It is a side view of the drying device of the utility model.

[0022] Figure 4 It is a test diagram when the drying device of the utility model is arranged relative to the object to be dried.

[0023] Figure 5 yes Figure 4 A cross-sectional view of the structure shown in FIG.

[0024] The following are the descriptions of the reference numerals:

[0025] 10. Parts to be dried; 20. Drying device; 300. Shell; 310. Ventilation duct; 311. Air inlet duct; 312. Air outlet duct; 313. Air supply duct; 321. Front side wall; 322. Rear side wall; 323. End wall; 331. Guide surface; 332. Guide wind; 340. Limiting structure; 400. Electromagnetic wave transmitting plate. DETAILED DESCRIPTION

[0026] Typical implementations that embody the features and advantages of the present application will be described in detail in the following description. It should be understood that the present application can have various changes in different implementations without departing from the scope of the present application, and the descriptions and illustrations therein are essentially used for illustrative purposes rather than for limiting the present application.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0028] Figure 1It is the front view of the drying device of the utility model. Figure 2 It is a bottom view of the drying device of the utility model. Figure 3 It is a side view of the drying device of the utility model. Figure 4 It is a test diagram when the drying device of the utility model is arranged relative to the object to be dried.

[0029] In the related art, the object to be dried 10 includes but is not limited to battery pole pieces, battery cells and other components. The object to be dried 10 can be laid flat in the horizontal direction, so as to facilitate the placement, movement and drying of the battery pole pieces. The object to be dried 10 is arranged opposite to the drying device 20, so that the drying device 20 can dry the object to be dried 10.

[0030] In some embodiments, the object to be dried 10 can be laid flat in the vertical direction so that the object to be dried 10 and the drying device 20 are arranged opposite to each other, so as to improve the drying efficiency of the drying device 20 .

[0031] See also Figure 4 For ease of description and understanding, the direction of the dried object 10 relative to the drying device 20 is referred to as the lower side below, and the direction away from the lower side is referred to as the upper side below; the length direction of the drying device 20 is referred to as the left-right direction below; and the direction perpendicular to the up-down direction and the left-right direction is referred to as the front-back direction below.

[0032] Figure 5 yes Figure 4 A cross-sectional view of the structure shown in FIG.

[0033] See also Figures 1 to 5 The present application provides a drying device 20, which can be used to dry the object to be dried 10. The drying device 20 may include: a shell 300 and an electromagnetic wave emitting plate 400. The shell 300 may be spaced apart from the object to be dried 10. A ventilation duct 310 may be provided in the shell 300. The air outlet of the ventilation duct 310 may be provided on a side of the shell 300 close to the object to be dried 10, so that the airflow output from the air outlet of the ventilation duct 310 can flow onto the object to be dried 10. The electromagnetic wave emitting plate 400 may be provided on a side of the shell 300 facing the object to be dried 10, and the electromagnetic wave emitting plate 400 can emit electromagnetic waves and project them onto the object to be dried 10. Among them, the airflow output from the ventilation duct 310 can drive water vapor to flow to the outside.

[0034] When the drying device 20 dries the object to be dried 10, the electromagnetic wave emitting plate 400 emits electromagnetic waves to project onto the object to be dried 10, thereby heating and drying the object to be dried 10. The object to be dried 10 generates water vapor after being heated. The ventilation duct 310 in the housing 300 is ventilated so that the air flow flows to the object to be dried 10 through the air outlet of the ventilation duct 310. Afterwards, the air flow flows toward the outside of the electromagnetic wave emitting plate 400 to drive and remove the water vapor on the object to be dried 10. Thereby, the drying device 20 can improve the drying efficiency and the uniformity of drying, so as to improve the production efficiency of the battery, reduce the manufacturing cost of the battery, and ensure the overall performance of the battery mass production.

[0035] See also Figure 1 , Figure 2 and Figure 5 In this embodiment, the drying device 20 may include an electromagnetic wave emitting plate 400. The electromagnetic wave emitting plate 400 is detachably connected to a side of the housing 300 facing the object to be dried 10. The electromagnetic wave emitting plate 400 can emit electromagnetic waves to project the object to be dried 10, so that the object to be dried 10 generates heat to dry the object to be dried 10.

[0036] The electromagnetic emitting plate can emit electromagnetic waves and project them onto the object to be dried 10. After the object to be dried 10 receives the electromagnetic waves, the temperature of the object to be dried 10 increases, and the liquid in the object to be dried 10 is converted into water vapor to be dispersed to the surface of the object to be dried 10. In some embodiments, the electromagnetic waves can cause the water molecules in the object to be dried 10 to vibrate and be converted into water vapor.

[0037] In some embodiments, the electromagnetic wave emitting plate 400 may be an infrared emitting plate or a laser emitting plate. The infrared emitting plate can emit infrared light toward the object to be dried 10 to heat the object to be dried 10. The laser emitting plate can emit laser toward the object to be dried 10 to heat the object to be dried 10.

[0038] In some embodiments, the electromagnetic wave emitting plate 400 can be arranged obliquely relative to the object to be dried 10. The distance between the electromagnetic wave emitting plate 400 and the object to be dried 10 gradually increases along the flow direction of the water vapor, so that the water vapor can flow out to the outside and the efficiency of converting the liquid into water vapor can be improved. Thus, the drying efficiency of the drying device 20 can be improved.

[0039] In some embodiments, the electromagnetic wave emitting plate 400 may have an angle α with the object to be dried 10. The angle α ranges from 0° to 45°. In other embodiments, the electromagnetic wave emitting plate 400 may be arranged parallel to the object to be dried 10, so that the angle α between the electromagnetic wave emitting plate 400 and the object to be dried 10 is 0°. In other embodiments, the electromagnetic wave emitting plate 400 may have an angle of 45° with the object to be dried 10.

[0040] There is an angle α between the electromagnetic wave emitting plate 400 and the workpiece to be dried 10, so that the electromagnetic waves are reflected outward after being projected onto the workpiece to be dried 10, avoiding the electromagnetic waves from vertically returning and gathering between the workpiece to be dried 10 and the electromagnetic wave emitting plate 400, thereby preventing temperature runaway, improving the drying uniformity of the workpiece to be dried 10, and ensuring the reliability and stability of the drying device 20.

[0041] When the distance between the electromagnetic wave emitting plate 400 and the object to be dried is small, the angle α is large, so that the electromagnetic waves emitted by the electromagnetic wave emitting plate 400 are reflected outwards to avoid the temperature runaway of the object to be dried 10. When the distance between the electromagnetic wave emitting plate 400 and the object to be dried 10 is large, the angle α is small, so that the electromagnetic waves are reflected back and forth between the object to be dried 10 and the electromagnetic wave emitting plate 400, so that the drying efficiency of the electromagnetic wave emitting plate 400 can be improved, and the drying effect of the drying device 20 can be guaranteed.

[0042] See also Figure 1 , Figure 2 and Figure 5 In this embodiment, the drying device 20 includes at least two electromagnetic wave emitting plates 400. The at least two electromagnetic wave emitting plates 400 are arranged at intervals along the front-to-back direction. The at least two electromagnetic wave emitting plates 400 can be arranged opposite to each other to perform drying treatment on the object to be dried 10 or different objects to be dried 10 respectively.

[0043] The ventilation duct 310 can be located between any two adjacent electromagnetic wave emitting plates 400 , so that the gas output from the ventilation duct 310 can remove the water vapor on the drying element 10 .

[0044] See also Figure 1 , Figure 2 and Figure 5 In this embodiment, there may be two electromagnetic wave emitting plates 400. The two electromagnetic wave emitting plates 400 may be located at the front and rear sides of the housing 300, respectively. The two electromagnetic wave emitting plates 400 may extend in the left and right directions. The two electromagnetic wave emitting plates 400 are arranged opposite to each other. The ventilation duct 310 may be arranged between the two electromagnetic wave emitting plates 400. The ventilation duct 310 may output airflow to remove water vapor on the to-be-dried parts 10 corresponding to the electromagnetic wave emitting plates 400 on both sides of the ventilation duct 310.

[0045] In some embodiments, the distance between the two electromagnetic wave emitting plates 400 increases gradually from bottom to top, so that the electromagnetic wave emitting plates 400 are tilted relative to the object to be dried 10, thereby preventing electromagnetic waves from being reflected back and forth and preventing temperature from getting out of control.

[0046] See also Figure 1 , Figure 2 and Figure 5In this embodiment, there may be at least two electromagnetic wave transmitting plates 400. In other embodiments, there may be 2, 3, 4, 5, or 6 electromagnetic wave transmitting plates 400. In other embodiments, the number of electromagnetic wave transmitting plates 400 may be more than 6.

[0047] In some embodiments, a plurality of electromagnetic wave emitting plates 400 are arranged at intervals along the front-to-back direction. In the direction from front to back, a plurality of electromagnetic wave emitting plates 400 are arranged extending from bottom to top. The flow direction of the gas outputted by the ventilation duct 310 is the same, so as to facilitate the removal of water vapor on the to-be-dried object 10. The collision between the gases outputted by different ventilation ducts 310 is prevented, the water vapor removal effect is improved, and the drying quality is guaranteed.

[0048] In other embodiments, at least two electromagnetic wave transmitting plates 400 may be arranged at intervals along the front-to-back direction. The at least two electromagnetic wave transmitting plates 400 include a plurality of electromagnetic wave transmitting plates 400 on the front side and a plurality of electromagnetic wave transmitting plates 400 on the rear side. The plurality of electromagnetic wave transmitting plates 400 on the front side are arranged opposite to the plurality of electromagnetic wave transmitting plates 400 on the rear side. An angle is formed between any electromagnetic wave transmitting plate 400 on the front side and any electromagnetic wave transmitting plate 400 on the rear side.

[0049] A ventilation duct 310 is provided between any two adjacent electromagnetic wave emitting plates 400. The ventilation duct 310 can output airflow toward the front electromagnetic wave emitting plate 400 and the rear electromagnetic wave emitting plate 400, so that the airflow flows forward and backward on the drying object 10, respectively, thereby removing water vapor on the drying object 10.

[0050] In other embodiments, the ventilation ducts 310 between the multiple electromagnetic wave emitting plates 400 on the front side have the same flow direction of the gas output to prevent the collision between the airflows on the same side. In other embodiments, the ventilation ducts 310 between the multiple electromagnetic wave emitting plates 400 on the rear side have the same flow direction of the gas output.

[0051] In some embodiments, a plurality of electromagnetic wave emitting plates 400 may be disposed on the housing 300. The plurality of electromagnetic wave emitting plates 400 are arranged at intervals along the front-to-back direction, and the plurality of electromagnetic wave emitting plates 400 may be arranged at intervals along the left-to-right direction.

[0052] In other embodiments, four electromagnetic wave emitting plates 400 may be disposed on the housing 300. Two electromagnetic wave emitting plates 400 are disposed on the front side of the ventilation duct 310, and the other two electromagnetic wave emitting plates 400 are disposed on the rear side of the ventilation duct 310. The electromagnetic wave emitting plates 400 located on the same side are arranged at intervals along the left-right direction. This allows the electromagnetic wave emitting plates 400 to emit electromagnetic waves to heat the object to be dried 10, thereby improving the drying efficiency of the object to be dried 10.

[0053] In some embodiments, there may be one electromagnetic wave emitting plate 400. The electromagnetic wave emitting plate 400 is disposed on a side of the housing 300 close to the object to be dried 10 so as to irradiate the object to be dried 10. The ventilation duct 310 is located on one side of the electromagnetic wave emitting plate 400, and the ventilation duct 310 can output airflow so as to flow toward the object to be dried 10 corresponding to the electromagnetic wave emitting plate 400, thereby removing water vapor on the object to be dried 10.

[0054] In other embodiments, in a plane perpendicular to the up-down direction, the ventilation duct 310 is located within the enclosed range of the electromagnetic wave emitting plate 400. The electromagnetic wave emitting plate 400 is provided with an air outlet (not shown) relative to the air outlet of the ventilation duct 310. The airflow in the ventilation duct 310 flows toward the to-be-dried object 10 through the air outlet, thereby removing the water vapor on the to-be-dried object 10.

[0055] In some embodiments, the electromagnetic wave emitting plate 400 is connected to the housing 300 so that the angle α between the electromagnetic wave emitting plate 400 and the object to be dried 10 is fixed.

[0056] In some embodiments, an angle adjustment frame (not shown in the figure) is provided between the electromagnetic wave emitting plate 400 and the housing 300. The angle adjustment frame can adjust the angle between the electromagnetic wave emitting plate 400 and the housing 300, so as to adjust the angle α between the electromagnetic wave emitting plate 400 and the object to be dried 10. The electromagnetic wave emitting plate 400 can adjust the angle α of the electromagnetic wave emitting plate 400 relative to the object to be dried 10 according to the drying requirements of various objects to be dried 10 and the spacing between the objects to be dried 10 and the drying device 20. In this way, the vertical round-trip concentration degree of the electromagnetic wave between the object to be dried 10 and the electromagnetic wave emitting plate 400 is adjusted, and the drying efficiency of the drying device 20 is adjusted.

[0057] See also Figures 1 to 5 In this embodiment, the drying device 20 may include a housing 300. A ventilation duct 310 may be provided in the housing 300. The air outlet of the ventilation duct 310 is provided on a side wall of the housing 300 close to the object to be dried 10, so that the air flow can flow to the object to be dried 10 after passing through the ventilation duct 310, so as to blow the water vapor on the object to be dried 10 and improve the drying efficiency.

[0058] In some embodiments, the ventilation duct 310 extends toward the to-be-dried object 10. In other embodiments, the ventilation duct 310 extends in the up-down direction.

[0059] See also Figure 5In this embodiment, the ventilation duct 310 may include an air inlet duct 311. In the direction toward the object to be dried 10, the diameter of the air inlet duct 311 gradually decreases. Thus, the flow rate of the gas output from the air inlet duct 311 is increased, so that the gas can impact the object to be dried 10 faster, so as to improve the effect of the air flow driving the water vapor flow. Thus, the water vapor can be removed efficiently, the drying efficiency of the drying device 20 can be improved, the manufacturing cost of the battery can be reduced, and the overall performance of the battery mass production can be guaranteed.

[0060] In some embodiments, the air inlet duct 311 may extend in the up-down direction. In the direction from top to bottom, the diameter of the air inlet duct 311 gradually decreases. In the direction from top to bottom, the diameter of the lower part of the air inlet duct 311 gradually decreases.

[0061] In some embodiments, the air inlet duct 311 may include a front side wall 321, a rear side wall 322, and two end walls 323. The front side wall 321 and the rear side wall 322 of the air inlet duct 311 are arranged at intervals along the front-to-back direction. The front side wall 321 and the rear side wall 322 of the air inlet duct 311 both extend along the left-right direction. The two end walls 323 are respectively located at the two ends of the front side wall 321. The end portion extends along the front-to-back direction to connect the two ends of the rear side wall 322. The front side wall 321, the rear side wall 322, and the two end walls 323 enclose the air inlet duct 311.

[0062] In some other embodiments, in the direction from top to bottom, the lower portion of the front side wall 321 and the lower portion of the rear side wall 322 extend obliquely toward each other to reduce the diameter of the air inlet duct 311. The lower portion of the air inlet duct 311 is in a prism shape.

[0063] In other embodiments, the two end walls 323 of the air inlet duct 311 are the two end walls 323 of the housing 300. In other embodiments, the two end walls 323 of the air inlet duct 311 are spaced from the two end walls 323 of the housing 300.

[0064] In some embodiments, an air inlet fan (not shown in the figure) may be provided in the air inlet duct 311 . The air inlet fan can drive the gas to flow into the air inlet duct 311 .

[0065] In other embodiments, the air inlet fan may be disposed outside the housing 300 to input external air into the air inlet duct 311 .

[0066] See also Figure 5 In this embodiment, the ventilation duct 310 may further include an outlet duct 312. The air inlet of the outlet duct 312 is connected to the air inlet duct 311. The air outlet of the outlet duct 312 is provided on a side wall of the housing 300 close to the drying object 10, so as to output airflow to the drying object 10, thereby driving the water vapor on the drying object 10 to flow to the outside.

[0067] In some embodiments, in the direction from top to bottom, the air outlet duct 312 extends obliquely toward the adjacent electromagnetic wave emitting plate 400, so that the airflow output by the air outlet duct 312 flows toward the adjacent electromagnetic wave emitting plate 400 and the object to be dried 10, so as to blow the water vapor generated after the electromagnetic wave emitting plate 400 dries the object to be dried 10, thereby improving the drying effect of the drying device 20 and ensuring the drying uniformity of the object to be dried 10.

[0068] In some embodiments, the left and right ends of the air outlet duct 312 extend to the two end walls 323 of the shell 300 so that the airflow output by the air outlet duct 312 can efficiently and stably flow to the object to be dried 10 to increase the drying range of the drying device 20.

[0069] In some embodiments, in a plane perpendicular to the left-right direction, the width of the air outlet duct 312 is 0.5 mm to 5 mm.

[0070] In some embodiments, an angle β may be formed between the air outlet duct 312 and the object to be dried 10. The angle β may range from 90° to 135°.

[0071] In some embodiments, a guide surface 331 is formed on one side of the housing 300 facing the object to be dried 10. An outlet of the air outlet duct 312 is provided in the middle of the guide surface 331. The guide surface 331 is used to form a guide air duct 332 between the guide surface 331 and the object to be dried 10. The guide air duct 332 can guide the airflow output from the air outlet duct 312 so that the airflow output from the air outlet duct 312 flows toward the outside along the surface to be dried, thereby removing water vapor on the surface of the object to be dried 10, improving the drying efficiency, and improving the drying efficiency and drying uniformity of the drying device 20.

[0072] In other embodiments, the distance between the guide surface 331 and the to-be-dried object 10 gradually increases along the flow direction of the water vapor, so that the cross-street area of ​​the guide air duct 332 gradually increases.

[0073] In other embodiments, the guide surface 331 near the air outlet of the air outlet duct 312 is arranged parallel to the to-be-dried object 10, so as to guide the airflow to flow toward the outside of the to-be-dried object 10. The guide surface 331 away from the air outlet of the air outlet duct 312 is arranged obliquely relative to the to-be-dried object 10, so that the distance between the guide surface 331 and the to-be-dried object 10 gradually increases along the flow direction of the water vapor. Thus, the cross-street area of ​​the guide duct 332 gradually increases, so that the airflow drives the water vapor to move to the outside.

[0074] See also Figure 5 In this embodiment, the ventilation duct 310 may further include two air outlet ducts 312. The air inlets of the two air outlet ducts 312 are both connected to the air outlet of the air inlet duct 311.

[0075] In some embodiments, the distance between the two air outlet ducts 312 gradually increases in the direction toward the drying object 10 , so that the gas output from the two air outlet ducts 312 can flow toward the front and rear sides respectively to blow the water vapor on the drying object 10 .

[0076] In a direction from top to bottom, the distance between the two air outlet ducts 312 gradually increases.

[0077] In some embodiments, the ventilation duct 310 may further include a supplementary air duct 313. The supplementary air duct 313 may be located between the two outlet air ducts 312. The supplementary air duct 313 may extend toward the to-be-dried object 10. The air inlet of the supplementary air duct 313 may be connected to the air outlet of the air inlet duct 311. The air outlet of the supplementary air duct 313 is located between the air outlets of the two outlet air ducts 312. The gas outputted from the supplementary air duct 313 can flow to the portion of the to-be-dried object 10 between the two outlet air ducts 312, so as to dry the to-be-dried object 10 between the air outlets of the two outlet air ducts 312, and ensure the drying uniformity and reliability of the to-be-dried object 10.

[0078] In some embodiments, the air supply duct 313 extends in the up-down direction. In other embodiments, the air supply duct 313 is perpendicular to the object 10 to be dried.

[0079] In some embodiments, the air outlet of the air supply duct 313 is opened on the guide surface 331 to blow the water vapor on the object to be dried 10 between the two electromagnetic wave emitting plates 400. This can ensure the drying effect of the drying device 20 and the drying uniformity of the drying device 20.

[0080] See 1 to Figure 4 In this embodiment, a limiting structure 340 may be further provided on the outer side of the housing 300. The limiting structure 340 is used to limit the housing 300 on the external placement rack. This facilitates the installation and limiting of the drying device 20. In some embodiments, the limiting structure 340 also facilitates the connection and arrangement of multiple drying devices 20, thereby improving the processing efficiency of multiple objects 10 to be dried.

[0081] In some embodiments, the limiting structure 340 may include structures such as bolts and pins to facilitate the installation and limiting of the drying device 20. In other embodiments, the limiting structure 340 may also realize the connection between multiple drying structures.

[0082] See also Figures 1 to 5 In this embodiment, when the object to be dried 10 needs to be dried, the object to be dried 10 is laid flat so that the object to be dried 10 and the drying device 20 are arranged opposite to each other.

[0083] The electromagnetic wave emitting plate 400 emits electromagnetic waves and projects them onto the object to be dried 10, so as to heat the object to be dried 10. The liquid in the object to be dried 10 is converted into water vapor and dispersed to the outside of the object to be dried 10. The electromagnetic wave emitting plate 400 can make the object to be dried 10 be heated uniformly, thereby improving the drying efficiency of the drying device 20 and improving the uniformity of drying.

[0084] When the electromagnetic wave emitting plate 400 emits electromagnetic waves to dry the object to be dried 10, the gas passes through the air inlet duct 311 and the air outlet duct 312 in sequence, and then flows to the surface of the object to be dried 10, thereby driving the water vapor on the surface of the object to be dried 10 to flow to the outside, thereby improving the drying efficiency of the drying device 20 and ensuring the uniformity of drying. In addition, when the gas flows on the object to be dried 10, the flow of the gas can also quickly convert the liquid in the object to be dried 10 into water vapor, so as to further improve the drying efficiency of the object to be dried 10. This can effectively reduce the manufacturing cost of the battery and ensure the overall performance of the battery mass production.

[0085] In the present application, when the drying device 20 dries the object to be dried 10, the electromagnetic wave emitting plate 400 emits electromagnetic waves to the object to be dried 10 to heat and dry the object to be dried 10. The object to be dried 10 is heated to generate water vapor. The ventilation duct 310 in the shell 300 is ventilated so that the airflow flows to the object to be dried 10 through the air outlet of the ventilation duct 310. When the gas flows through the object to be dried 10, the airflow can flow toward the outside of the electromagnetic wave emitting plate 400 to drive the water vapor to flow out; it can also facilitate the conversion of the liquid in the object to be dried 10 into water vapor. The drying device 20 can improve the drying efficiency and the uniformity of drying, so as to improve the production efficiency of the battery, reduce the manufacturing cost of the battery, and ensure the overall performance of the battery mass production.

[0086] See also Figures 1 to 5 The present application also provides a safe drying system, which may include an electrode sheet and a drying device 20 as described above. The electrode sheet is laid flat in the horizontal direction. The drying device 20 is arranged opposite to the electrode sheet. The drying device 20 may include an electromagnetic wave transmitting plate 400 and a ventilation duct 310. The electromagnetic wave transmitting plate 400 transmits electromagnetic waves and projects them onto the electrode sheet so that the electrode sheet is heated and emits water vapor. The airflow output by the ventilation duct 310 can drive the water vapor to flow to the outside.

[0087] In some embodiments, the electrode sheet can also be arranged vertically flat, so that the electrode sheet is arranged opposite to the drying device 20 .

[0088] In some embodiments, the safe drying system may include a carrier (not shown in the figure). The carrier extends in a horizontal direction. The carrier can carry and limit the electrode sheet to facilitate the placement and replacement of the electrode sheet, thereby improving the drying efficiency of the electrode sheet.

[0089] In other embodiments, an assembly line (not shown in the figure) may be provided on the support frame to facilitate the replacement of the electrode sheets and improve the drying efficiency of the electrode sheets.

[0090] In some embodiments, the safety drying system may include a mounting frame (not shown in the figure). The mounting frame may be used to connect the drying device 20 to improve the safety and reliability of the drying device 20.

[0091] In other embodiments, the mounting frame can be connected to multiple drying devices 20 so that the multiple drying devices 20 can process multiple electrode sheets at the same time.

[0092] Although the present application has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present application can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A drying device, characterized in that: It can be used to dry the items to be dried, and the drying device comprises: A housing is spaced apart from the object to be dried; a ventilation duct is provided in the housing, an air outlet of the ventilation duct is provided on a side of the housing close to the object to be dried, and airflow outputted from the air outlet of the ventilation duct can flow onto the object to be dried; An electromagnetic wave emitting plate, which is arranged on a side of the housing facing the object to be dried, and can emit electromagnetic waves and project them onto the object to be dried, so that the object to be dried is heated and emits water vapor; Wherein, the airflow output by the ventilation duct can drive the water vapor to flow to the outside.

2. The drying device according to claim 1, characterized in that: The electromagnetic wave emitting plate is arranged obliquely relative to the object to be dried; and the distance from the electromagnetic wave emitting plate to the object to be dried gradually increases along the flow direction of the water vapor.

3. The drying device according to claim 1, characterized in that: An angle α is formed between the electromagnetic wave emitting plate and the object to be dried, and the angle α ranges from 0° to 45°.

4. The drying device according to claim 1, characterized in that: There are at least two electromagnetic wave emitting plates, and at least two of the electromagnetic wave emitting plates are arranged opposite to each other. The ventilation duct can be located between any two adjacent electromagnetic wave emitting plates.

5. The drying device according to claim 4, characterized in that: There are two electromagnetic wave transmitting plates; The ventilation duct includes at least two air outlet ducts, and the distance between the two air outlet ducts gradually increases in the direction toward the object to be dried.

6. The drying device according to claim 5, characterized in that: An included angle β is formed between the air outlet duct and the object to be dried, and the angle β is in the range of 90° to 135°.

7. The drying device according to claim 5, characterized in that: The ventilation duct also includes an air supply duct, and the air supply duct is located between the two air outlet ducts to drive the water vapor to flow between the two electromagnetic wave emitting plates.

8. The drying device according to claim 1, characterized in that: A guide surface is formed on one side of the shell body facing the to-be-dried object, an air outlet of the ventilation duct is provided in the middle of the guide surface, and the guide surface is used to form a guide duct with the to-be-dried object.

9. The drying device according to claim 1, characterized in that: The ventilation duct also includes an air inlet duct, and the diameter of the air inlet duct gradually decreases in the direction toward the object to be dried.

10. The drying device according to claim 1, characterized in that: The electromagnetic wave emitting plate is an infrared emitting plate or a laser emitting plate.

11. A safe drying system, characterized in that: include: The electrode sheet is arranged flatly in the horizontal direction; The drying device according to any one of claims 1 to 10 is arranged opposite to the electrode sheet, and comprises the electromagnetic wave emitting plate and the ventilation duct; the electromagnetic wave emitting plate emits electromagnetic waves and projects them onto the electrode sheet so that the electrode sheet is heated and emits water vapor; the airflow output by the ventilation duct can drive the water vapor to flow to the outside.

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