Single-sided hand dryer

Abstract

The utility model discloses solve the problem that dismounts inconveniently of the built-in heating structure in the existing dry hand and provide a single face dry hand, including shell, filter structure, blow structure, control structure and heating structure, wherein filter structure, blow structure, control structure and heating structure are fixed respectively in the inside of shell, the air inlet end of blow structure is connected with filter structure, and the air outlet end of blow structure is fixedly connected with heating structure, and the opposite air outlet hole of heating structure is also respectively arranged on the shell, control structure is electrically connected with blow structure and heating structure respectively, heating structure includes heating plate and mounting plate, and mounting plate is fixedly arranged on the side of heating plate, the middle area of heating plate is provided with the air hole for passing through the airflow, and the heating wire on heating plate crosses the air hole and is wound on the two side edges of air hole, mounting plate and blow structure are detachably fixedly connected, the heating structure of convenient dismounting reduces the maintenance and maintenance difficulty to heating structure.

Description

Technical Field

[0001] This utility model relates to the field of hand dryer technology, and in particular to a single-sided hand dryer. Background Technology

[0002] Automatic hand dryers are bathroom appliances used to dry hands and are widely used in hotels, hospitals, shopping malls, research institutions, and other places. Existing automatic hand dryers typically consist of a blower and a heater, with the heater embedded within the air duct below the blower, as shown in patent CN210249666U. However, heaters in public places operate in high-temperature and high-humidity environments for extended periods, making them prone to aging and oxidation, affecting their heating efficiency and potentially causing short circuits and damage. Therefore, timely maintenance or replacement is necessary. The installation method of the heater in existing hand dryers makes disassembly and assembly inconvenient, increasing the difficulty of maintenance and repair and affecting the overall lifespan. Therefore, a single-sided hand dryer with an easily detachable heater is needed. Summary of the Invention

[0003] This invention addresses the problem in existing technologies where the heater is located inside the fan, making it inconvenient to replace. It provides a single-sided hand dryer that facilitates easy replacement of the heater.

[0004] To solve the above problems, the present invention adopts the following solution: A single-sided hand dryer includes a housing, a filter structure, a blowing structure, a control structure, and a heating structure. The filter structure, blowing structure, control structure, and heating structure are all fixedly installed inside the housing. The air inlet of the blowing structure is connected to the filter structure, and the air outlet of the blowing structure is fixedly connected to the heating structure. The housing also has corresponding air outlets for the heating structure. The control structure is electrically connected to both the blowing structure and the heating structure. The heating structure includes a heating plate and a mounting plate, with the mounting plate fixedly installed on the side of the heating plate. A vent is provided in the middle area of ​​the heating plate for airflow to pass through, and heating wires on the heating plate cross the vent and are wound around the two edges of the vent. The mounting plate is detachably and fixedly connected to the blowing structure.

[0005] Furthermore, the blowing structure includes a power component and a blowing housing, wherein the power component is fixedly installed inside the blowing housing; the upper end of the blowing housing is configured as an air inlet end connected to the filter structure, and the lower end is configured as an air outlet end corresponding to the heating structure; a mounting hole is provided on the outer side of the air outlet end of the blowing housing for detachable connection with the mounting plate.

[0006] Furthermore, the air outlet end of the blower housing is also provided with an air outlet cover for centralized airflow guidance, and the heating structure is located between the air outlet cover and the blower housing; a through hole for inserting the heating structure is also provided on the mating edge of the air outlet cover and the blower housing, the heating structure is inserted into the through hole, and the upper and lower parts of the mounting plate are fixedly connected to the outer side of the blower housing and the air outlet cover, respectively.

[0007] Furthermore, the air outlet cover gradually narrows from top to bottom, and the bottom of the air outlet cover is provided with an opening corresponding to the air outlet hole on the outer shell.

[0008] Furthermore, the power component in the blower structure is a brushless motor or a brushed motor.

[0009] Furthermore, the mounting plate is also provided with U-shaped holes for embedding wires of the heating structure; the U-shaped holes are located at the upper edge and / or lower edge of the mounting plate.

[0010] Furthermore, the heating structure also includes a sealing partition; the sealing partition is fixedly disposed on the side of the mounting plate away from the heating plate.

[0011] Furthermore, the mounting plate is made of metal; the sealing partition is made of high-temperature resistant rubber.

[0012] Furthermore, the outer shell includes two parts: a mounting plate and a protective cover; the edges of the protective cover and the mounting plate have gaps for air intake; a self-locking mechanism is also provided between the mounting plate and the protective cover, the self-locking mechanism including a first card located on both sides of the mounting plate and a second card located on both sides of the protective cover closer to the inside; when the mounting plate and the protective cover are connected, the first card and the second card abut against each other.

[0013] The beneficial effects of this utility model are as follows: By incorporating a heating structure that is easy to disassemble and assemble into the air-blowing structure, the difficulty of repairing and maintaining the heating structure is reduced, ensuring that the hand-drying equipment can operate stably for a long time. By fixing and connecting the mounting plate to the outside of the air outlet cover of the blower housing, the heating structure can be removed or installed without opening the blower structure. The structure is simple and easy to use. By setting a sealing partition on the mounting plate, the installation part between the heating structure and the blowing structure is sealed, ensuring the air outlet effect below. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of Example 1; Figure 2 This is a rear view of the overall structure of Example 1; Figure 3 This is a schematic diagram of the internal structure of the hand dryer in Example 1; Figure 4This is an exploded view of the internal structure of the hand dryer in Example 1; Figure 5 This is a schematic diagram of the heating structure in Example 1; Figure 6 This is an exploded view of the heating structure in Example 1; Figure 7 This is a schematic diagram of the self-locking mechanism between the protective cover and the hanging plate in Example 1.

[0015] Explanation of the reference numerals in the attached diagram: 1. Outer shell; 11. Air outlet; 12. Protective cover; 13. Hanging plate; 14. Self-locking mechanism; 2. Filter structure; 21. Metal filter layer; 22. HEPA filter layer; 3. Blowing structure; 3. Power component; 31. Blowing housing; 32. Air outlet cover; 33. Control structure; 4. Heating structure; 5. Heating plate; 51. Mounting plate; 52. Heating wire; 53. Sealing partition; 54. Wire; 55. Detailed Implementation

[0016] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0017] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the figures only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex. Example 1

[0018] like Figures 1-7As shown, a single-sided hand dryer includes a housing 1, a filter structure 2, a blowing structure 3, a control structure 4, and a heating structure 5; wherein the filter structure 2, the blowing structure 3, the control structure 4, and the heating structure 5 are respectively fixedly disposed inside the housing 1; the air inlet of the blowing structure 3 is connected to the filter structure 2, and the air outlet of the blowing structure 3 is fixedly connected to the heating structure 5; the housing 1 is also provided with an air outlet 11 opposite to the heating structure 5; the control structure 4 is electrically connected to both the blowing structure 3 and the heating structure 5. It should be noted that the control structure 4 uses an existing method to control the blowing structure 3 and the heating structure 5; the heating structure... 5 includes a heating plate 51 and a mounting plate 52, with the mounting plate 52 fixedly disposed on the side of the heating plate 51. In this example, the heating plate 51 and the mounting plate 52 are fixed by welding to ensure a stable connection even under high temperature conditions. The middle area of ​​the heating plate 51 is provided with an air hole for airflow to pass through. The heating wire 53 on the heating plate 51 crosses the air hole and is wound around the two sides of the air hole. It should be noted that in this example, the heating wire 53 has a spring-like structure, which increases the distribution density of the heating wire 53 on the one hand, and leaves gaps between the heating wires 53 on the other hand, allowing airflow to pass through. The mounting plate 52 is detachably fixedly connected to the blowing structure 3.

[0019] The outer casing 1 comprises two parts: a mounting plate 13 and a protective cover 12. The mounting plate 13 is used to fix the filter structure 2, the blowing structure 3, and the control structure 4 to the external wall. The protective cover 12 is fixedly mounted on the mounting plate 13, covering the filter structure 2, the blowing structure 3, the control structure 4, and the heating structure 5 inside it. It should be noted that a gap is left between the edges of the protective cover 12 and the mounting plate 13 for air intake. Air intake through this gap effectively prevents large particles from being sucked into the filter structure 2, increasing its service life. The bottom of the protective cover 12 has an air outlet 11 opposite to the heating structure 5. A self-locking mechanism 14 is also provided between the mounting plate 13 and the protective cover 12. The self-locking mechanism 14 includes first clips on both sides of the mounting plate and second clips on both sides of the protective cover, located closer to the inside. When the mounting plate and the protective cover are connected, the first and second clips abut against each other, preventing the protective cover from detaching away from the mounting plate, thus achieving self-locking. It should also be noted that screws are provided between the protective cover and the mounting plate for fixed connection.

[0020] The filter structure 2 includes a metal filter layer 21 and a HEPA filter layer 22; the metal filter layer 21 is respectively disposed on the upper and lower sides of the HEPA filter layer 22; the filter paper in the HEPA filter is arranged in a triangular shape along the horizontal direction, so that the airflow entering the blowing structure 3 will pass through the first metal filter layer 21, the HEPA filter layer 22 and the second metal filter layer 21 respectively, to isolate dust and debris and other impurities, and avoid affecting the normal operation of the filter structure 2.

[0021] The blowing structure 3 includes a power component 31 and a blowing housing 32, wherein the power component 31 is fixedly installed inside the blowing housing 32; in this example, the power component 31 can be a brushless motor or a brushed motor; the upper end of the blowing housing 32 is set as the air inlet end connected to the filter structure 2, and the lower end is set as the air outlet end corresponding to the heating structure 5; the outer side of the air outlet end of the blowing housing 32 is provided with mounting holes that can be detachably connected to the mounting plate 52, and these mounting holes are used to connect screws.

[0022] The air outlet end of the blower housing 32 is also provided with an air outlet cover 33 for concentrating and guiding the air outlet. The heating structure 5 is located between the air outlet cover 33 and the blower housing 32. A through hole for inserting the heating structure 5 is also provided on the mating edge of the air outlet cover 33 and the blower housing 32. The heating structure 5 is inserted into the through hole and is opposite to the air outlet end of the blower structure 3. The upper and lower parts of the mounting plate 52 are fixedly connected to the outer side of the blower housing 32 and the air outlet cover 33, respectively. The air outlet cover 33 gradually narrows from top to bottom to enhance the air volume. The bottom of the air outlet cover 33 is provided with an opening corresponding to the air outlet hole 11 on the outer shell 1.

[0023] The mounting plate 52 is also provided with U-shaped holes for embedding the wires 55 of the heating structure 5. In this example, there are two U-shaped holes, located at the upper edge and the lower edge of the mounting plate 52 respectively, corresponding to the wires 55 connected to the two electrodes in the heating wire 53, to fix the wires 55 and prevent the wires 55 from shaking or deforming due to airflow, which could cause them to come into contact with the heating wire and cause damage.

[0024] The heating structure 5 also includes a sealing partition 54; the sealing partition 54 is fixedly disposed on the side of the mounting plate 52 away from the heating plate 51; wherein the mounting plate 52 is made of metal material, which is convenient for welding and fixing to the heating plate 51, but the metal mounting plate 52 is prone to gaps between itself and the blower housing 32 and the air outlet cover 33, which may cause airflow to be drawn in or overflowed during blowing, affecting the air outlet effect of the air outlet 11 at the bottom of the housing 1; the sealing partition 54 is made of high temperature resistant rubber material; in this example, screws pass through the sealing partition 54 and the mounting plate 52 respectively and are fixedly connected to the blower housing 32 and the air outlet cover 33.

[0025] During implementation, by setting a heating structure 5 on the blower structure 3 that is easy to disassemble and assemble, the difficulty of maintenance and repair of the heating structure 5 is reduced, ensuring that the hand dryer can operate stably for a long time. By fixing and connecting the mounting plate 52 to the outside of the air outlet cover 33 of the blower housing 32, the heating structure 5 can be removed or installed without opening the blower structure 3, which is simple in structure and easy to use. By setting a sealing partition 54 on the mounting plate 52, the installation part between the heating structure 5 and the blower structure 3 is sealed, ensuring the air outlet effect of the lower air outlet.

[0026] The above description is merely a specific example of this utility model and does not constitute any limitation on this utility model. Obviously, those skilled in the art, after understanding the content and principle of this utility model, may make various modifications and changes in form and details without departing from the principle and structure of this utility model. However, these modifications and changes based on the concept of this utility model are still within the protection scope of the claims of this utility model.

Claims

1. A single-sided hand dryer, comprising a housing (1), a filter structure (2), a blowing structure (3), a control structure (4), and a heating structure (5); wherein the filter structure (2), the blowing structure (3), the control structure (4), and the heating structure (5) are respectively fixedly disposed inside the housing (1); the air inlet of the blowing structure (3) is connected to the filter structure (2), and the air outlet of the blowing structure (3) is fixedly connected to the heating structure (5); the housing (1) is also provided with an air outlet (11) opposite to the heating structure (5); the control structure (4) is electrically connected to the blowing structure (3) and the heating structure (5) respectively; characterized in that, The heating structure (5) includes a heating plate (51) and a mounting plate (52). The mounting plate (52) is fixedly disposed on the side of the heating plate (51). The middle area of ​​the heating plate (51) is provided with an air hole for airflow to pass through. The heating wire (53) on the heating plate (51) crosses the air hole and is wrapped around the two sides of the air hole. The mounting plate (52) is detachably fixedly connected to the blowing structure (3).

2. A single-sided hand dryer according to claim 1, characterized in that, The blowing structure (3) includes a power component (31) and a blowing housing (32), wherein the power component (31) is fixedly installed inside the blowing housing (32); the upper end of the blowing housing (32) is configured as an air inlet end connected to the filter structure (2), and the lower end is configured as an air outlet end corresponding to the heating structure (5); a mounting hole for detachable connection with the mounting plate (52) is provided on the outer side of the air outlet end of the blowing housing (32).

3. A single-sided hand dryer according to claim 2, characterized in that, The air outlet end of the blower housing (32) is also provided with an air outlet cover (33) for centralized airflow guidance. The heating structure (5) is located between the air outlet cover (33) and the blower housing (32). A through hole for inserting the heating structure (5) is also provided on the mating edge of the air outlet cover (33) and the blower housing (32). The heating structure (5) is inserted into the through hole. The upper and lower parts of the mounting plate (52) are fixedly connected to the outer side of the blower housing (32) and the air outlet cover (33), respectively.

4. A single-sided hand dryer according to claim 3, characterized in that, The air outlet cover (33) gradually narrows from top to bottom, and the bottom of the air outlet cover (33) is provided with an opening corresponding to the air outlet hole (11) on the outer shell (1).

5. A single-sided hand dryer according to claim 2, characterized in that, The power component (31) in the blower structure (3) is a brushless motor or a brushed motor.

6. A single-sided hand dryer according to claim 1, characterized in that, The mounting plate (52) is also provided with a U-shaped hole for embedding the wire (55) of the heating structure (5); the U-shaped hole is located at the upper edge and / or lower edge of the mounting plate (52).

7. A single-sided hand dryer according to claim 1, characterized in that, The heating structure (5) also includes a sealing partition (54); the sealing partition (54) is fixedly disposed on the side of the mounting plate (52) away from the heating plate (51).

8. A single-sided hand dryer according to claim 7, characterized in that, The mounting plate (52) is made of metal; the sealing partition (54) is made of high-temperature resistant rubber.

9. A single-sided hand dryer according to claim 1, characterized in that, The outer shell (1) includes two parts: a mounting plate (13) and a protective cover (12); the edges of the protective cover (12) and the mounting plate (13) are left with a gap for air intake; a self-locking mechanism (14) is also provided between the mounting plate (13) and the protective cover (12), the self-locking mechanism (14) includes a first card located on both sides of the mounting plate and a second card located on both sides of the protective cover; when the mounting plate and the protective cover are connected, the first card and the second card abut against each other.

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