Portable mini hair dryer

Abstract

The portable mini blower comprises an outer shell, an inner cylinder, a fan body, a circuit board, a switch assembly and a rear shell, the outer shell is arranged on the outer side of the inner cylinder in a sleeved mode, the inner cylinder comprises a heat insulation cylinder and a supporting cylinder, the heat insulation cylinder is arranged at the front end of the supporting cylinder, the fan body is arranged in the supporting cylinder, and the switch assembly is arranged on the outer side of the supporting cylinder. The circuit board is arranged at the rear end of the supporting cylinder, the circuit board is of an annular structure and electrically connected with the fan body and the switch assembly, a plurality of electronic components extending in the axial direction are arranged on the two sides of the circuit board, and gaps for containing the electronic components extending in the axial direction are reserved between the supporting cylinder and the shell. The rear shell is arranged at the rear end of the shell. According to the portable mini hair dryer, the circuit board is designed, limited space is reasonably utilized, the surface area of the circuit board is reduced, the overall structure of the hair dryer is smaller, and the portable mini hair dryer is convenient to carry and use when people go out.

Description

Technical Field

[0001] This utility model belongs to the field of hair dryer technology, and specifically relates to a portable mini hair dryer. Background Technology

[0002] Hair dryers are common household appliances, typically consisting of a casing and a handle, and are shaped like a hammer. However, current hair dryers on the market are limited by their shape and the size of the electrical components on the circuit board, with most having a diameter of 75mm or more. This prevents hair dryers from being further reduced in size, making them lightweight and easy to store. Utility Model Content

[0003] In view of this, the purpose of this utility model is to address the shortcomings of the existing technology by providing a portable mini hair dryer. Through reasonable design, the product size can be further reduced, making it convenient to carry and store when going out.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A portable mini hair dryer includes a shell, an inner tube, a fan body, a circuit board, a switch assembly, and a rear shell. The shell is fitted over the outer side of the inner tube. The inner tube includes a heat insulation tube and a support tube. The heat insulation tube is located at the front end of the support tube. The fan body is located inside the support tube. The switch assembly is located outside the support tube and extends upward through the shell. The circuit board is located at the rear end of the support tube. The circuit board has a ring structure and electrically connects the fan body and the switch assembly. Multiple electronic components extending in the axial direction are provided on both sides of the circuit board. A gap is left between the support tube and the shell to accommodate the axial extension of the multiple electronic components. The rear shell is located at the rear end of the shell.

[0006] To better realize this utility model, the above structure is further optimized by providing a power socket on the rear shell, and the circuit board is electrically connected to the power socket.

[0007] To better realize this utility model, the above structure is further optimized by embedding the power socket in the rear shell.

[0008] To better realize this utility model, the above structure is further optimized by providing multiple air guide holes at the front end of the heat insulation cylinder.

[0009] To better realize this utility model, the above structure is further optimized by providing a dustproof net on the back cover.

[0010] To better realize this utility model, the above structure is further optimized by providing an air inlet metal filter between the rear shell and the dust filter.

[0011] To better realize this utility model, the above structure is further optimized by providing a nozzle accessory at the front end of the outer shell.

[0012] To better realize this utility model, the above structure is further optimized, and the outer diameter of the shell is 52.5mm.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] This portable mini hair dryer utilizes a redesigned circuit board that makes efficient use of limited space. Large electronic components (such as the motor starting capacitor) are placed in the gap between the support cylinder and the outer shell, reducing the surface area of ​​the circuit board and making the overall structure of the hair dryer more compact. The outer shell size can be reduced to 52.5mm, making it easy to carry. Simultaneously, the circuit board is positioned at the air inlet at the rear of the support cylinder, using airflow to dissipate heat from the circuit board, ensuring stable temperature of the electronic components and extending their lifespan. Furthermore, the traditional fixed power cord is removed, leaving only the power socket on the hair dryer for easy storage and portability. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the portable mini hair dryer of this utility model;

[0017] Figure 2 This is one of the exploded views of the portable mini hair dryer of this utility model;

[0018] Figure 3 This is the second exploded view of the portable mini hair dryer of this utility model;

[0019] Figure 4 This is an exploded structural diagram of the circuit board and support cylinder in this utility model.

[0020] In the picture:

[0021] 1-Outer shell, 2-Inner cylinder, 201-Insulation cylinder, 2011-Air guide hole, 202-Support cylinder, 3-Fan body, 4-Circuit board, 401-Electronic components, 5-Switch assembly, 6-Rear shell, 7-Power socket, 8-Dust filter, 9-Inlet metal filter, 10-Nozzle accessories, 11-Power cord. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Please refer to Figures 1-4The portable mini hair dryer provided by this utility model includes a shell 1, an inner cylinder 2, a blower body 3, a circuit board 4, a switch assembly 5, and a rear shell 6. The shell 1 is fitted onto the outside of the inner cylinder 2, and the outer diameter of the shell 1 is 52.5mm. Compared with hair dryers on the market, the mini hair dryer made by the technical solution of this application is more compact and small, making it very convenient to carry and use when going out. The inner cylinder 2 includes a heat insulation cylinder 201 and a support cylinder 202. The heat insulation cylinder 201 is located at the front end of the support cylinder 202, and the front end of the heat insulation cylinder 201 is provided with multiple air guide holes 2011. The reasonable design of the shape of the air guide holes 2011 makes the blown air smoother and gentler, and at the same time, it can also play a role in isolation to prevent users' fingers from being burned when they are inserted into the heat insulation cylinder 201. The blower body 3 is housed inside the support cylinder 202, and the switch assembly 5 is located outside the support cylinder 202, extending upwards through the outer casing 1. The circuit board 4 is located at the rear end of the support cylinder 202. When the blower is started, air enters from the rear end of the support cylinder 202, using the airflow to remove the heat generated by the various electronic components 401 on the circuit board 4, ensuring stable temperature of each electronic component 401 and extending its service life. The circuit board 4 has a ring structure with an air duct in the middle, which does not affect normal air intake. The circuit board 4 is electrically connected to the blower body 3 and the switch assembly 5, and the switch assembly 5 controls the blower body 3.

[0026] like Figure 4 As shown, multiple electronic components 401 extending in the axial direction are provided on both sides of the circuit board 4. A gap is left between the support cylinder 202 and the outer shell 1 to accommodate the axial extension of the multiple electronic components 401. In this embodiment, the gap is naturally generated by setting the outer diameter of the support cylinder 202 to be smaller than the outer diameter of the heat insulation cylinder 201, and then putting the outer shell 1 on.

[0027] The rear shell 6 is located at the rear end of the outer shell 1. The power socket 7 is embedded in the rear shell 6. The circuit board 4 is electrically connected to the power socket 7, separating the traditional fixed power cord. Only the power socket 7 is retained on the hair dryer. When in use, the power cord 11 is plugged into the power socket 7, which is convenient for storage and carrying. At the same time, there is no need to bend the connection between the power cord 11 and the hair dryer when storing it, which improves its service life.

[0028] A dust filter 8 is installed on the back cover 6, which serves as a preliminary barrier. An air inlet metal filter 9 is installed between the back cover 6 and the dust filter 8 for further filtration, preventing hair, paper scraps and other debris from entering the hair dryer.

[0029] The front end of the outer casing 1 is provided with a nozzle accessory 10. The nozzle accessory 10 shown in this embodiment is a hair styling nozzle. Users can choose to match related nozzle accessories according to their needs, such as high-pressure blower nozzles and comb accessories.

[0030] In use, air enters from the rear shell 6 at the rear end of the outer casing 1, then passes through the internal circuit board 4 into the inner cylinder 2, and is discharged from the nozzle accessory 10 at the front end of the outer casing 1. Compared with traditional hair dryers, this application has a more compact structure, with an external size reduced to 52.5mm. The power cord 11 is plugged into the power socket 7, making it easy to store and carry, highlighting the product's lightweight and miniaturized features; moreover, the through-flow air duct design improves the heat dissipation of the internal electronic components.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A portable mini hair dryer, characterized in that: The device includes an outer shell (1), an inner cylinder (2), a fan body (3), a circuit board (4), a switch assembly (5), and a rear shell (6). The outer shell (1) is fitted over the outer side of the inner cylinder (2). The inner cylinder (2) includes a heat insulation cylinder (201) and a support cylinder (202). The heat insulation cylinder (201) is located at the front end of the support cylinder (202). The fan body (3) is located inside the support cylinder (202). The switch assembly (5) is located outside the support cylinder (202) and extends upwards. Through the outer shell (1), the circuit board (4) is disposed at the rear end of the support cylinder (202). The circuit board (4) has a ring structure. The circuit board (4) is electrically connected to the fan body (3) and the switch assembly (5). Multiple electronic components (401) extending in the axial direction are disposed on both sides of the circuit board (4). A gap is left between the support cylinder (202) and the outer shell (1) to accommodate the axial extension of the multiple electronic components (401). The rear shell (6) is disposed at the rear end of the outer shell (1).

2. A portable mini hair dryer according to claim 1, characterized in that: A power socket (7) is provided on the rear shell (6), and the circuit board (4) is electrically connected to the power socket (7).

3. A portable mini hair dryer according to claim 2, characterized in that: The power socket (7) is embedded in the rear shell (6).

4. A portable mini hair dryer according to claim 1, characterized in that: The front end of the heat insulation cylinder (201) is provided with multiple air guide holes (2011).

5. A portable mini hair dryer according to claim 1, characterized in that: A dustproof net (8) is provided on the rear shell (6).

6. A portable mini hair dryer according to claim 5, characterized in that: An air inlet metal filter (9) is provided between the rear shell (6) and the dust filter (8).

7. A portable mini hair dryer according to claim 1, characterized in that: The front end of the outer casing (1) is provided with a nozzle accessory (10).

8. A portable mini hair dryer according to claim 1, characterized in that: The outer diameter of the outer shell (1) is 52.5 mm.

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