Air knife assembly and glass cleaning machine
By incorporating heating wires into the air knife assembly and setting air knives at the top and bottom, the problems of low heat utilization efficiency and large structure in existing glass drying devices are solved, achieving the effects of high-efficiency heating and cost reduction.
Patent Information
- Application Number
- CN202423161197.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing glass drying equipment has low thermal efficiency and a large structure, resulting in energy waste and increased equipment costs.
It adopts an air knife assembly, with an air outlet chamber inside the air knife and a built-in heating wire for direct heating of the air. The air duct does not need to be modified, and the air knife is set up at the top and bottom to form a temperature difference. The heating wire and the fan work together to achieve efficient heating.
It improves heat utilization, reduces energy consumption and equipment costs, and avoids glass deformation caused by temperature differences, thus improving the drying effect of the glass surface.
Smart Images
Figure CN223826735U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of photovoltaic thin-film battery manufacturing technology, and in particular to a wind knife assembly and a glass cleaning machine. Background Technology
[0002] In the production of photovoltaic thin-film batteries, one step is to transport the glass to a glass cleaning machine for cleaning, which requires both cleaning and drying. Existing glass drying devices generally use a blower to generate air that blows water stains off the glass surface through air knives. At the same time, to improve the drying effect, the air knives in existing glass drying devices are connected to a hot air blower; the hot air blower generates heat, which causes the air blown out by the air knives to reach a certain temperature.
[0003] However, because the hot air generated by the hot air blower needs to pass through the air duct, some heat will be lost from the air duct; at the same time, the installation of the hot air blower makes the device relatively large in the overall structure. Utility Model Content
[0004] In view of this, the purpose of this application is to provide an air knife assembly and a glass washing machine to solve the problems of low thermal efficiency and large structure of existing glass drying devices.
[0005] To achieve the above-mentioned technical objectives, the first aspect of this application provides an air knife assembly, including: an air knife, an air duct, and a heating wire;
[0006] The air knife is directed towards the glass;
[0007] The air knife has an air outlet chamber inside;
[0008] The air duct is connected to the air outlet cavity;
[0009] The heating wire is disposed inside the air outlet cavity.
[0010] Furthermore, the air knife comprises two sets;
[0011] The two sets of air knives are respectively positioned above and below the glass.
[0012] Furthermore, the heating wire is disposed in one of the two sets of air knives.
[0013] Furthermore, the heating wire is disposed in the air knife located above the glass.
[0014] Furthermore, the air knife is provided with an air outlet that communicates with the air outlet cavity;
[0015] The air outlet is elongated;
[0016] The heating wire extends through the air outlet along its length.
[0017] Furthermore, the heating wire is spiral-shaped.
[0018] Furthermore, the heating wire is connected to a temperature sensor.
[0019] A second aspect of this application provides a glass cleaning machine, comprising: a cabinet and an air knife assembly as described in any one of the above claims;
[0020] The cabinet is equipped with a conveying channel for conveying glass;
[0021] The air knife in the air knife assembly is mounted on the cabinet.
[0022] Furthermore, the air knife is connected to support shafts at both ends;
[0023] The support shaft is rotatably connected to the cabinet.
[0024] Furthermore, the cabinet is equipped with multiple conveyor rollers;
[0025] The conveying roller is equipped with multiple rollers.
[0026] As can be seen from the above technical solutions, this application provides an air knife assembly and a glass cleaning machine; wherein, an air knife assembly includes: an air knife, an air duct and a heating wire; the air knife faces the glass; an air outlet cavity is provided inside the air knife; the air duct is connected to the air outlet cavity; and the heating wire is disposed in the air outlet cavity.
[0027] The air knife assembly provided in this application directly heats the air blown out by the air knife during the air drying process of the glass. This results in higher heat utilization of the heating wire, eliminates the need for modifications to the air duct and other structures, and eliminates the need for an external hot air blower. It can effectively solve the problems of low heat utilization efficiency and large structure of existing glass drying devices. Attached Figure Description
[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0029] Figure 1 A side view of a wind knife assembly and glass provided for an embodiment of this application;
[0030] Figure 2 A schematic diagram of an air knife assembly provided in this application embodiment;
[0031] Figure 3A perspective view of a glass cleaning machine provided in an embodiment of this application;
[0032] In the diagram: 10, air knife; 11, air outlet cavity; 12, air outlet; 20, air duct; 30, heating wire; 40, glass; 50, cabinet; 51, conveying channel; 52, conveying roller; 53, roller. Detailed Implementation
[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in this application specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.
[0034] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0035] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.
[0036] Please see Figure 1 and Figure 2 In the first aspect of this application, an air knife assembly is provided, including: an air knife 10, an air duct 20, and a heating wire 30.
[0037] The air knife 10 is directed toward the glass 40 and is used to blow air onto the glass 40 to dry the water stains on the surface of the glass 40.
[0038] The air knife 10 has an air outlet chamber 11 inside; the air duct 20 is connected to the air outlet chamber 11. The air duct 20 is connected to the blower and can guide the air blown by the blower to the air outlet chamber 11.
[0039] The heating wire 30 is set inside the air outlet cavity 11, which can directly heat the air blown out by the air knife 10, so that the air blown out by the air knife 10 can quickly reach the required temperature, and has the effect of rapid heating and high heat utilization.
[0040] The air knife assembly provided in this embodiment can quickly remove water stains from the glass surface without the need for external hot air blowers or other equipment that increases the structural volume, or for adding insulation to the air duct 20, thus simplifying the equipment and reducing equipment costs.
[0041] In one embodiment, such as Figure 1 As shown, the air knife 10 includes two sets; the two sets of air knives 10 are respectively arranged above and below the glass 40, so that the air knife assembly provided in this embodiment can dry the upper and lower surfaces of the glass 40 at the same time.
[0042] In one embodiment, the heating wire 30 is disposed in one of the two sets of air blades 10. That is, in this embodiment, the air blown out by one set of air blades 10 is slightly warm air, and the air blown out by the other set is hot air. A set of air blades 10 may include multiple air blades.
[0043] In this embodiment, a temperature difference can be created between the upper and lower surfaces of the glass 40, which can balance the thermal stress on the glass surface. Specifically, as a brittle material, glass expands outwards simultaneously on both its upper and lower surfaces when heated. Because the molecular structure inside the glass restricts this expansion, stress resisting expansion is generated within the glass. When a temperature difference is created between the upper and lower surfaces of the glass 40, the side with the lower temperature expands less, thus limiting the expansion of the other side and reducing the degree of glass deformation. Especially in the photovoltaic thin-film field, where higher surface precision is required, using two sets of air knives 10 with different outlet temperatures helps balance the thermal stress inside the glass 40, preventing any impact on the thin-film fabrication effect.
[0044] Based on the above, by setting heating wires 30 in only one set of air blades 10, energy consumption can be effectively reduced, thereby reducing energy costs and equipment investment costs.
[0045] It should be noted that the heat of the hot air is provided by the heating wire 30, and its temperature can be 50℃ to 80℃; the heat of the micro-hot air is generated by the fan itself, and the temperature of the micro-hot air can be 30℃ to 40℃.
[0046] In a more specific embodiment, the heating wire 30 is disposed in the air knife 10 located above the glass 40. That is, when drying the glass 40, the upper surface of the glass 40 is exposed to hot air.
[0047] In practical applications, water stains on glass 40 are generally left on the upper surface of glass 40; therefore, in this embodiment, the heating wire 30 is placed above the air knife 10 above glass 40 to ensure the removal effect of water stains on glass 40.
[0048] In one embodiment, see Figure 2 The air knife 10 is provided with an air outlet 12 that connects to the air outlet cavity 11; the air outlet 12 is elongated; the heating wire 30 passes through the air outlet 12 along its length.
[0049] In this embodiment, the heating wire 30 can be adapted to the air outlet 12 and is also configured as a long strip. The heating wire 30 passing through the air outlet 12 can ensure its heating effect on the air blown out of the air outlet 12.
[0050] As a further improvement, the heating wire 30 is spiral-shaped.
[0051] In this embodiment, the spiral heating wire 30 refers to the heating wire 30 being spiraled into a spring shape. The spiral heating wire 30 can increase the heating area of the heating wire 30 and improve its heating efficiency, ensuring that the heating wire 30 can quickly heat the gas in the air outlet cavity 11 to the required temperature.
[0052] In one embodiment, the heating wire 30 is connected to a temperature sensor.
[0053] The temperature sensor can limit the temperature of the heating wire 30, preventing the surface temperature of the glass 40 from becoming too high.
[0054] Please see Figures 1 to 3 The second aspect of this application provides a glass washing machine, including: a cabinet 50 and an air knife assembly of any of the above; the cabinet 50 is provided with a conveying channel 51 for conveying glass 40; the air knife 10 of the air knife assembly is disposed on the cabinet 50.
[0055] In practical applications, the cabinet 50 is equipped with inlet and outlet ports for the glass 40 to enter and exit at both ends along the conveying direction. A cover plate can be installed on the top of the cabinet 50 to seal its top surface. Specifically, the cabinet 50 can be configured such that, except for the inlet and outlet ports, all other parts are sealed. During the blowing process of the air knife 10, the residence time of hot air within the cabinet 50 can be extended, indirectly increasing the temperature within the conveying channel 51 and further improving the drying efficiency of the glass 40.
[0056] As a further improvement, the air blade 10 is connected to support shafts 13 at both ends; the support shafts 13 are rotatably connected to the cabinet 50.
[0057] In practical applications, the support shaft 13 can be connected to a driver such as a motor; the driver can drive the support shaft 13 and the air knife 10 to rotate, thereby changing the air outlet angle of the air knife 10 as needed.
[0058] In one embodiment, a plurality of conveyor rollers 52 are provided inside the cabinet 50; a plurality of rollers 53 are provided on the conveyor rollers 52.
[0059] Roller 53 can be a rubber roller, nylon roller or polyurethane roller, all of which have good wear resistance and are not likely to damage the glass 40.
[0060] The above are merely preferred embodiments of this application and are not intended to limit the present invention. Although the present application has been described in detail with reference to examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A wind knife assembly, characterized in that, include: Air knife (10), air duct (20) and heating wire (30); The air knife (10) faces the glass (40); The air knife (10) has an air outlet cavity (11) inside. The air duct (20) is connected to the air outlet cavity (11); The heating wire (30) is disposed inside the air outlet cavity (11).
2. The air knife assembly according to claim 1, characterized in that, The air knife (10) comprises two sets; The two sets of air knives (10) are respectively positioned above and below the glass (40).
3. The air knife assembly according to claim 2, characterized in that, The heating wire (30) is disposed in one of the two sets of air knives (10).
4. The air knife assembly according to claim 3, characterized in that, The heating wire (30) is disposed in the air knife (10) located above the glass (40).
5. The air knife assembly according to any one of claims 1 to 4, characterized in that, The air knife (10) is provided with an air outlet (12) that connects to the air outlet cavity (11). The air outlet (12) is elongated; The heating wire (30) extends through the air outlet (12) along the length of the air outlet (12).
6. The air knife assembly according to claim 5, characterized in that, The heating wire (30) is spiral-shaped.
7. The air knife assembly according to claim 5, characterized in that, The heating wire (30) is connected to a temperature sensor.
8. A glass washing machine, characterized in that, include: The cabinet (50) and the air knife assembly according to any one of claims 1 to 7; The cabinet (50) is provided with a conveying channel (51) for conveying glass (40). The air knife (10) in the air knife assembly is mounted on the cabinet (50).
9. The glass washing machine according to claim 8, characterized in that, The air knife (10) is connected to support shafts (13) at both ends. The support shaft (13) is rotatably connected to the cabinet (50).
10. The glass washing machine according to claim 8, characterized in that, The cabinet (50) is equipped with multiple conveyor rollers (52); The conveying roller (52) is provided with multiple rollers (53).