Drying device
By using multi-stage guiding technology, including fan components, flow guide components, and shroud components, the problem of temperature affecting the drying efficiency of solar cells has been solved, achieving efficient and heat-loss-free drying of solar cells and improving the performance of solar cells.
Patent Information
- Application Number
- CN202422108755.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-08-29
AI Technical Summary
In existing technologies, the drying efficiency of solar cells is easily affected by the light source; efficiency is low when the temperature is too low, and performance is affected when the temperature is too high.
The device employs a drying unit, including a fan assembly, a flow guide assembly, and a flow shield. Through the flow guide holes and channels, it provides multi-stage guidance to precisely blow the air onto the areas with residual water stains on the battery cells. Combined with electric heating wires, it increases the air temperature and prevents overheating.
This improves the drying efficiency of the solar cells, reduces heat loss, and enhances the performance and photoelectric conversion efficiency of solar cells.
Smart Images
Figure CN223361036U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of solar cells, and in particular to a drying device. Background Art
[0002] With the development of modern industry, the global energy crisis and air pollution problems are becoming increasingly prominent, and traditional fuel energy is decreasing day by day. Since abundant solar radiation energy is an important renewable energy source, solar cells have become the focus of people's attention because of their function and advantage of converting solar radiation energy into electrical energy. In the process of preparing solar cells, it is necessary to use a laser to perform a water-free non-destructive slicing operation on the cell wafers, and after the slicing is completed, the cell wafers need to be dried. However, in the related art, most of the cell wafers are dried by stringing high-temperature lamps, which makes the drying efficiency of the cell wafers easily affected by the lamp source. When the temperature is too low, the drying efficiency is slow, and when the temperature is too high, it will have a certain impact on the performance of the cell wafers. Utility Model Content
[0003] Based on this, it is necessary to provide a drying device to address the problem that the drying efficiency is easily affected and the performance of the battery cell is easily affected when the battery cell is dried after the water non-destructive dicing operation.
[0004] A drying device, comprising:
[0005] A drying box, wherein the drying box is configured with a drying chamber;
[0006] A fan assembly, the fan assembly being installed in the drying chamber;
[0007] A flow guide assembly, the flow guide assembly being arranged on one side of the air outlet of the fan assembly, the flow guide assembly comprising a first flow guide member and a second flow guide member; the first flow guide member and the second flow guide member are respectively connected to the cavity wall of the drying chamber; and the second flow guide member is arranged on a side of the first flow guide member facing away from the fan assembly;
[0008] The first flow guide member is configured with a flow guide hole, and the second flow guide member is configured with a flow guide channel. The flow guide hole and the flow guide channel are arranged opposite to each other and are connected to each other.
[0009] In some embodiments, the first flow guide member is configured with a plurality of flow guide holes spaced apart along the first direction; at least one of the flow guide holes is disposed opposite to one of the flow guide channels.
[0010] In some embodiments, the orthographic projection of the diversion channel along the second direction is a long strip structure extending along the first direction;
[0011] The second direction is set at an angle to the first direction, and the second direction is the direction from the first flow guide member to the second flow guide member.
[0012] In some embodiments, the long sides d1 of the guide channel along the first direction meet the following conditions:
[0013] 12cm≤d1≤42cm;
[0014] The short side d2 of the diversion channel along the third direction meets the following conditions:
[0015] 4cm≤d2≤6cm;
[0016] Wherein, the third direction is set at an angle to the first direction and the second direction.
[0017] In some embodiments, outer contours of the orthographic projections of the guide channels arranged opposite to each other along the second direction are located outside the outer contours of the orthographic projections of the guide holes along the second direction.
[0018] In some embodiments, there are multiple second flow guide members, and the multiple second flow guide members are spaced apart along the first direction; each of the second flow guide members is configured with at least one flow guide channel.
[0019] In some embodiments, the drying device further comprises a hood flow member, the hood flow member being arranged on a side of the flow guide assembly away from the fan assembly; the hood flow member being configured with a hood flow channel extending along a first direction;
[0020] The second flow guide member is connected to the flow cover member, and the flow guide channel is communicated with the flow cover channel.
[0021] In some embodiments, the shroud flow member includes a first shroud flow plate, a second shroud flow plate, and a third shroud flow plate connected in sequence; the first shroud flow plate, the second shroud flow plate, and the third shroud flow plate are collectively arranged to form the shroud flow channel;
[0022] The first flow cover plate and the third flow cover plate are arranged opposite to each other along a third direction; the second flow guide member passes through the second flow cover plate.
[0023] In some embodiments, the width d3 of the shroud flow channel along the third direction satisfies the following condition:
[0024] 8cm≤d3≤10cm.
[0025] In some embodiments, the drying device further includes a transmission member and a drive assembly;
[0026] The transmission member is arranged on a side of the cover flow member away from the fan assembly; the transmission member is used to carry the object to be supported;
[0027] The driving assembly is in driving connection with the transmission member;
[0028] The transmission member can drive the object to be supported to move along the first direction under the drive of the driving assembly.
[0029] In some embodiments, the condition is satisfied between the long side d1 of the guide channel along the first direction and the short side d2 of the guide channel along the third direction:
[0030] 3d2≤d1≤7d2.
[0031] In some embodiments, the distance d4 between two adjacent second flow guide members satisfies the following condition:
[0032] 2cm≤d4≤4cm.
[0033] In some embodiments, an electric heating wire is provided in the fan assembly.
[0034] When the battery cells are dried by the above-mentioned drying device, the battery cells are placed in the drying chamber and the blower assembly is used to perform a blowing operation. The guide assembly guides the wind blown out by the fan assembly through the guide holes and guide channels that are connected to each other in a multi-stage operation, so that the wind can be blown accurately to the residual water stain area of the battery cell. This has a higher drying efficiency for the battery cell and is not prone to overheating and causing heat loss. Ultimately, the prepared solar cell has better performance and higher photoelectric conversion efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] Figure 1 Schematic diagram of a drying device provided in some embodiments of the present application.
[0036] Figure 2 for Figure 1 Schematic diagram of the cooperation between the second flow guide member, the flow cover member and the battery sheet in the drying device shown.
[0037] Figure 3 Schematic diagram of the structure of the battery cell undergoing water-free dicing operation.
[0038] Figure markings: 100-drying box; 110-drying chamber; 200-fan assembly; 210-electric heating wire; 300-flow guide assembly; 310-first flow guide member; 320-second flow guide member; 321-flow guide channel; 400-flow cover member; 410-first flow cover plate; 420-second flow cover plate; 430-third flow cover plate; 440-flow cover channel; 500-transmission member; 600-base; 700-battery cell; 710-first area; 720-second area. DETAILED DESCRIPTION
[0039] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.
[0040] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply 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 this application.
[0041] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.
[0042] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.
[0043] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0044] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.
[0045] See Figure 1 and Figure 2 , Figure 1 A schematic diagram of a drying device provided in some embodiments of the present application is shown. Figure 2 Shown Figure 1 The diagram of the cooperation between the second air guide 320, the air cover 400 and the battery cell 700 in the drying device is shown. The drying device provided by one embodiment of the present application includes a drying box 100, a fan assembly 200 and an air guide assembly 300. The drying box 100 is constructed with a drying chamber 110; the fan assembly 200 is installed in the drying chamber 110; the air guide assembly 300 is arranged on the air outlet side of the fan assembly 200; specifically, the air outlet side of the fan assembly 200 is below the fan assembly 200 and is automatically Figure 1The z in the figure points to the side in the z' direction; the guide assembly 300 includes a first guide member 310 and a second guide member 320; the first guide member 310 and the second guide member 320 are respectively connected to the cavity wall of the drying chamber 110; and the second guide member 320 is arranged on the side of the first guide member 310 away from the fan assembly 200; wherein, the first guide member 310 is configured with a guide hole, and the second guide member 320 is configured with a guide channel 321, and the guide hole and the guide channel 321 are arranged opposite to each other and are connected to each other.
[0046] When the battery cell 700 is dried by the above-mentioned drying device, the battery cell 700 is placed in the drying chamber 110, and the fan assembly 200 is used for blowing air, while the guide assembly 300 guides the air blown out by the fan assembly 200 through the guide holes and guide channels 321 that are connected to each other in a multi-stage manner, so that the air can be accurately blown to the residual water stain area of the battery cell 700. In this way, the drying efficiency of the battery cell 700 is higher, and it is not easy to cause the battery cell 700 to overheat and produce heat loss. Ultimately, the performance of the prepared solar cell is better and the photoelectric conversion efficiency is higher.
[0047] The structure of the drying device is described in detail below. In some embodiments, the first guide member 310 is configured with a plurality of guide holes spaced apart along a first direction; specifically, the first direction is Figure 1 and Figure 2 In the yy' direction, at least one guide hole is disposed opposite to one guide channel 321. By providing multiple guide holes and arranging at least one guide hole opposite to the guide channel 321, the wind blown out by the fan assembly 200 can be guided through the at least one guide hole and the guide channel 321. This allows the wind to be more concentrated during transmission and less likely to be blown away. The wind speed ultimately reaching the surface of the battery cell 700 is higher, resulting in higher drying efficiency.
[0048] See also Figure 2 In some embodiments, the orthographic projection of the guide channel 321 along the second direction is a long strip structure extending along the first direction; wherein the second direction is set at an angle to the first direction, and the second direction is the direction from the first guide member 310 to the second guide member 320; specifically, the second direction is Figure 1 and Figure 2 By setting the positive projection of the guide channel 321 along the second direction to a long strip structure, the battery cell 700 can be cut along the direction of the guide channel 321 along the second direction. Figure 1 and Figure 2 When transporting in the xx' direction, it can cover a larger area of residual water stains and achieve better drying effect.
[0049] See also Figure 1 and Figure 2 In some embodiments, the long side d1 of the guide channel 321 along the first direction satisfies the condition: 12 cm ≤ d1 ≤ 42 cm. By setting the long side dimension d1 of the guide channel 321 along the first direction to be greater than or equal to 12 cm and less than or equal to 42 cm, the length of the guide channel 321 along the first direction is longer, making it easier to cover a larger area of residual water stains on the battery cell 700. In one specific embodiment, the long side d1 of the guide channel 321 along the first direction is 12 cm. In another specific embodiment, the long side d1 of the guide channel 321 along the first direction is 42 cm. In another specific embodiment, the long side d1 of the guide channel 321 along the first direction is 30 cm.
[0050] See also Figure 2 In some embodiments, the short side d2 of the guide channel 321 along the third direction satisfies the condition: 4cm≤d2≤6cm; wherein the third direction is set at an angle to the first direction and the second direction; specifically, the third direction is Figure 2 xx' direction in . See Figure 3 , Figure 3 A schematic diagram of the structure of a cell 700 undergoing a water-free dicing operation is shown. After water-free dicing, the cell 700 is divided into a first region 710 and a second region 720. The first region 710 is the area with residual water stains, and the second region 720 is the area without water stains. Generally, the width of the first region 710, or the area with residual water stains, along the third direction is between 1 cm and 3 cm. By setting the short side d2 of the guide channel 321 along the third direction to be greater than 4 cm and less than 6 cm, the short side d2 of the guide channel 321 along the third direction can completely cover the area with residual water stains along the third direction without being too wide, thereby achieving a better drying effect on the area with residual water stains. In one specific embodiment, the short side d2 of the guide channel 321 along the third direction is 4 cm. In another specific embodiment, the short side d2 of the guide channel 321 along the third direction is 6 cm. In yet another specific embodiment, the short side d2 of the guide channel 321 along the third direction is 5 cm.
[0051] See also Figure 2In some embodiments, the condition between the long side d1 of the guide channel 321 along the first direction and the short side d2 of the guide channel 321 along the third direction is satisfied: 3d2≤d1≤7d2. By setting the size of d1 to be greater than 3 times the size of d2 and less than 7 times the size of d2, the length and width of the entire guide channel 321 is optimized, neither too large nor too small, which is beneficial for guiding the wind blown out by the fan assembly 200 and can better dry the residual water stain area of the battery cell 700. In one specific embodiment, the size of d1 is equal to 3 times the size of d2. In another specific embodiment, the size of d1 is equal to 7 times the size of d2. In another embodiment, the size of d1 is equal to 5 times the size of d2.
[0052] See also Figure 2 In some embodiments, the distance d4 between two adjacent second flow guides 320 satisfies the condition: 2cm≤d4≤4cm. By setting the distance d4 between two adjacent second flow guides 320 to be greater than or equal to 2cm and less than or equal to 4cm, the battery cell 700 can be cut along the direction of the water-free dicing operation. Figure 1 and Figure 2 When moving in the yy' direction, the guide member 320 can quickly move from under the guide channel 321 of one guide member to under the guide channel 321 of the next guide member, effectively ensuring the drying effect of the battery cells 700. In one specific embodiment, the distance d4 between two adjacent second guide members 320 is 2 cm. In another specific embodiment, the distance d4 between two adjacent second guide members 320 is 4 cm. In another specific embodiment, the distance d4 between two adjacent second guide members 320 is 3 cm.
[0053] In some embodiments, the outer contours of the orthographic projections of the oppositely disposed flow channels 321 along the second direction are located outside the outer contours of the orthographic projections of the flow guide holes along the second direction. By arranging the outer contours of the orthographic projections of the oppositely disposed flow channels 321 along the second direction outside the outer contours of the orthographic projections of the flow guide holes along the second direction, more air flowing out of the flow guide holes can enter the flow channels 321, thereby increasing the air volume for drying the battery cells 700 and achieving a better drying effect.
[0054] See also Figure 2 In some embodiments, there are multiple second flow guides 320, and the multiple second flow guides 320 are spaced apart along the first direction; each second flow guide 320 is configured with at least one flow guide channel 321. Figure 1 and Figure 2The yy' direction of the second guide members 320 is arranged at intervals, so that the number of the second guide members 320 can be set according to the size of the different battery cells 700, which has better adaptability.
[0055] See also Figure 1 and Figure 2 In some embodiments, the drying device further includes a shroud member 400, which is disposed on a side of the flow guide assembly 300 away from the fan assembly 200. The shroud member 400 is configured with a shroud flow channel 440 extending along a first direction. The second flow guide 320 is connected to the shroud member 400, and the flow guide channel 321 is in communication with the shroud flow channel 440. By providing the shroud member 400, after the wind blown by the fan assembly 200 passes through the flow guide channel 321, the wind can be more accurately blown to the area covered by the shroud member 400, that is, the first area 710 of the battery cell 700, through the shroud flow effect of the shroud member 400, thereby improving the drying effect on the battery cell 700.
[0056] See also Figure 2 In some embodiments, the shroud member 400 includes a first shroud plate 410, a second shroud plate 420, and a third shroud plate 430, which are connected in sequence. The first shroud plate 410, the second shroud plate 420, and the third shroud plate 430 collectively enclose a shroud flow channel 440. The first shroud plate 410 and the third shroud plate 430 are disposed opposite each other along a third direction. The second air guide member 320 penetrates the second shroud plate 420. The first shroud plate 410, the second shroud plate 420, and the third shroud plate 430 collectively enclose a shroud flow channel 440, thereby providing a shroud flow effect on the wind. The entire shroud member 400 has a relatively simple structure and is easy to manufacture. In one specific embodiment, the shroud member 400 utilizes a bending process to form the first shroud plate 410, the second shroud plate 420, and the third shroud plate 430. In one specific embodiment, the third air shield plate 430 is tilted to guide the wind flowing into the air shield channel 440 , thereby better performing a blow-drying operation on the battery cells 700 .
[0057] See also Figure 2 In some embodiments, the width d3 of the shroud flow channel 440 along the third direction satisfies the condition: 8 cm ≤ d3 ≤ 10 cm. By setting the width d3 of the shroud flow channel 440 along the third direction to be greater than or equal to 8 cm and less than or equal to 10 cm, the shroud flow channel 440 can completely cover the first region 710 of the battery cell 700. This improves the drying effect on the first region 710 of the battery cell 700 (the width of the first region 710 along the third direction is between 1 cm and 3 cm), that is, the area where residual water stains remain.
[0058] See also Figure 1In some embodiments, the drying device further includes a transmission member 500 and a drive assembly (not shown in the figure); the transmission member 500 is arranged on the side of the hood member 400 away from the fan assembly 200; the transmission member 500 is used to carry the object to be supported; the drive assembly is in transmission connection with the transmission member 500; the transmission member 500 can drive the object to be supported to move along the first direction under the drive of the drive assembly. By providing the transmission member 500 and the drive assembly, the object to be supported, that is, the battery cell 700, can be moved along the first direction under the transmission action of the transmission member 500, and the drying operation is achieved during the moving transmission process. Optionally, the transmission member 500 can be a transmission roller or a transmission belt, etc. The drive assembly can be a rotating motor or a slider chute, etc.
[0059] It should be noted that the support may be the battery cell 700 after the water non-destructive scribing operation, or may be other structures that require a drying operation, and there is no special limitation on this.
[0060] See also Figure 1 In some embodiments, the drying device further includes a base 600, which is installed in the drying chamber 110 and connected to the side wall of the drying chamber 110, and the transmission member 500 is installed and fixed on the base 600, thereby supporting and fixing the transmission member 500 through the base 600.
[0061] See also Figure 1 In some embodiments, an electric heating wire 210 is provided in the fan assembly 200. By providing the electric heating wire 210 in the fan assembly 200, the air blown out by the fan assembly 200 can be heated by the electric heating wire 210, thereby making the temperature of the air finally blown to the surface of the battery cell 700 higher, effectively improving the drying efficiency of the battery cell 700.
[0062] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0063] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.
Claims
1. A drying device, characterized in that: The drying device comprises: A drying box (100), wherein the drying box (100) is configured with a drying chamber (110); a fan assembly (200), the fan assembly (200) being installed in the drying chamber (110); A flow guide assembly (300), the flow guide assembly (300) being arranged on one side of the air outlet of the fan assembly (200), the flow guide assembly (300) comprising a first flow guide member (310) and a second flow guide member (320); the first flow guide member (310) and the second flow guide member (320) being respectively connected to the cavity wall of the drying cavity (110); and the second flow guide member (320) being arranged on a side of the first flow guide member (310) facing away from the fan assembly (200); The first flow guide member (310) is configured with a flow guide hole, and the second flow guide member (320) is configured with a flow guide channel (321), wherein the flow guide hole and the flow guide channel (321) are arranged opposite to each other and are in communication with each other.
2. The drying device according to claim 1, characterized in that: The first flow guide member (310) is provided with a plurality of flow guide holes spaced apart along a first direction; at least one of the flow guide holes is arranged opposite to one of the flow guide channels (321).
3. The drying device according to claim 2, characterized in that: The orthographic projection of the guide channel (321) along the second direction is a long strip structure extending along the first direction; The second direction is arranged at an angle to the first direction, and the second direction is the direction from the first flow guide member (310) to the second flow guide member (320).
4. The drying device according to claim 3, characterized in that: The long side d1 of the guide channel (321) along the first direction satisfies the following conditions: 12cm≤d1≤42cm; The short side d2 of the guide channel (321) along the third direction meets the following conditions: 4cm≤d2≤6cm; Wherein, the third direction is set at an angle to the first direction and the second direction.
5. The drying device according to claim 3, characterized in that: The outer contours of the positive projections of the guide channels (321) arranged opposite to each other in the second direction are located at the periphery of the outer contour of the positive projection of the guide hole in the second direction.
6. The drying device according to any one of claims 1 to 5, characterized in that: There are multiple second flow guide members (320), and the multiple second flow guide members (320) are arranged at intervals along the first direction; each second flow guide member (320) is configured with at least one flow guide channel (321).
7. The drying device according to any one of claims 1 to 5, characterized in that: The drying device further comprises a hood flow member (400), the hood flow member (400) being arranged on a side of the flow guide assembly (300) away from the fan assembly (200); the hood flow member (400) being configured with a hood flow channel (440) extending along a first direction; The second flow guide member (320) is connected to the flow cover member (400), and the flow guide channel (321) is in communication with the flow cover channel (440).
8. The drying device according to claim 7, characterized in that: The shroud flow member (400) comprises a first shroud flow plate (410), a second shroud flow plate (420), and a third shroud flow plate (430) connected in sequence; the first shroud flow plate (410), the second shroud flow plate (420), and the third shroud flow plate (430) are jointly arranged to form the shroud flow channel (440); The first flow shield plate (410) and the third flow shield plate (430) are arranged opposite to each other along a third direction; and the second flow guide member (320) passes through the second flow shield plate (420).
9. The drying device according to claim 8, characterized in that: The width d3 of the shroud flow channel (440) along the third direction satisfies the condition: 8cm≤d3≤10cm.
10. The drying device according to claim 7, characterized in that: The drying device further comprises a transmission member (500) and a driving assembly; The transmission member (500) is arranged on a side of the cover flow member (400) facing away from the fan assembly (200); the transmission member (500) is used to carry objects to be supported; The driving assembly is in transmission connection with the transmission member (500); The transmission member (500) can drive the object to be supported to move along a first direction under the drive of the driving component.