Mounting structure of an electric hair dryer

Abstract

The utility model discloses a kind of mounting structure of electric hair dryer, including air duct, handle and the motor installation cylinder being arranged in air duct, the motor installation cylinder includes upper semicircular shell and lower semicircular shell, the upper semicircular shell and the lower semicircular shell are spliced to form motor positioning cavity with larger inner diameter than both sides, motor is fixed in the motor positioning cavity, the first positioning hole is provided in the bottom of the motor installation cylinder, the side of the handle is provided with positioning part on air duct, the second positioning hole is provided on the positioning part, and the first positioning hole and the second positioning hole are inserted and fixed with screw.The electric hair dryer is reliable while ensuring impact resistance, with compact layout and convenient assembly characteristics.

Description

Technical Field

[0001] This utility model belongs to the field of hair dryer technology, specifically a hair dryer installation structure, which optimizes the positioning stability and structural compactness of the motor mounting components inside the hair dryer. Background Technology

[0002] In hair dryer product design, the motor, as the core power component, directly affects the safety and lifespan of the entire machine due to the reliability of its fixing structure. Traditional fixing solutions mainly involve two technical approaches: 1. Clip-on positioning structure: Current technology commonly uses a motor mounting cylinder nested within the motor body for fixing. The positioning groove or limiting ring on the outer wall of the motor mounting cylinder aligns with a pre-set elastic clip on the inner wall of the hair dryer. While this structure offers the advantage of convenient assembly, stress concentration can easily occur at the interface between the clip and the groove when the product is subjected to accidental drop impact, leading to clip breakage or plastic deformation, posing a risk of the motor assembly detaching from the hair dryer. 2. Screw-fastened positioning ring structure: To improve fixing reliability, some models use a positioning ring fitted around the outer circumference of the motor, secured to the inner wall of the hair dryer by multiple circumferentially distributed screws. While this solution enhances structural rigidity, it introduces significant drawbacks. The addition of the positioning ring and screws forces an increase in the radial dimension of the hair dryer, and the narrow internal operating space of the hair dryer restricts the accessibility of assembly tools, significantly impacting production efficiency. Summary of the Invention

[0003] This utility model addresses the shortcomings of existing technologies by providing an installation structure for a hair dryer that ensures impact resistance and reliability while also featuring a compact layout and convenient assembly.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a hair dryer mounting structure, including a blower tube, a handle, and a motor mounting cylinder disposed within the blower tube. The motor mounting cylinder includes an upper semi-circular shell and a lower semi-circular shell, which are joined together to form a motor positioning cavity with an inner diameter larger than the sides. A motor is fixed inside the motor positioning cavity. A first positioning hole is provided at the bottom of the motor mounting cylinder. A positioning part is provided on the side of the blower tube connected to the handle, and a second positioning hole is provided on the positioning part. A screw is inserted and fixed between the first positioning hole and the second positioning hole. During assembly, the motor is placed into the motor positioning cavity of the upper or lower semi-circular shell, then the upper and lower semi-circular shells are joined together to form the motor mounting cylinder. The motor mounting cylinder is then inserted into the blower tube, the first and second positioning holes are aligned, and a screw is inserted from the bottom of the second positioning hole and screwed into the first positioning hole to complete the assembly of the motor mounting cylinder. This design ensures impact resistance and reliability while also featuring a compact layout and convenient assembly.

[0005] In the above technical solution, preferably, the handle includes a central stem portion integrally formed with the handle, a through hole communicating with the handle is provided on the side of the air duct near the handle, an opening is provided on the rear side of the central stem portion, a rear stem portion is covered by the opening, and the positioning part is located at the top of the opening. This structure makes the opening position convenient for screw installation tools to operate, making installation more convenient.

[0006] In the above technical solution, preferably, a circuit board is provided between the rear handle and the middle handle.

[0007] In the above technical solution, preferably, the rear handle and the middle handle are fixed by screws.

[0008] In the above technical solution, preferably, an air guide tube is provided inside the air duct, one end of which abuts against a convex ring on the inner wall of the air duct, and the other end of which abuts against the motor mounting cylinder. This structure secures the air guide tube while simultaneously fixing the motor mounting cylinder.

[0009] In the above technical solution, preferably, the inner wall of the air duct is provided with an elastic limiting protrusion, and the outer wall of the motor mounting cylinder is provided with a limiting ring, the side of the limiting ring away from the air duct abutting against the limiting protrusion. This structure further improves the installation stability between the air duct and the motor mounting cylinder.

[0010] In the above technical solution, preferably, the upper semicircular shell and the lower semicircular shell are fastened together by a snap fastener.

[0011] In the above technical solution, preferably, the upper semi-circular shell and the lower semi-circular shell are joined together on the outer wall to form an annular groove, and a sealing ring is provided in the annular groove. This structure can further prevent the upper and lower semi-circular shells from separating.

[0012] In the above technical solution, preferably, an air inlet mesh cover is fastened to the tail end of the air duct. This structure allows for convenient installation of the air inlet mesh cover.

[0013] Compared with the prior art, this utility model has the following advantages: When assembling this hair dryer, the motor is placed in the motor positioning cavity of the upper or lower semi-circular shell, and then the upper and lower semi-circular shells are joined together to form a motor mounting cylinder. The motor mounting cylinder is then inserted into the blower tube, the first positioning hole and the second positioning hole are aligned, and a screw is inserted from the bottom of the second positioning hole and screwed into the first positioning hole to complete the assembly of the motor mounting cylinder. While ensuring impact resistance and reliability, it also has a compact layout and convenient assembly characteristics. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0015] Figure 2 This is an exploded structural diagram of an embodiment of the present utility model.

[0016] Figure 3 This is a cross-sectional structural diagram of an embodiment of the present utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the air duct in an embodiment of this utility model.

[0018] Figure 5 This is a schematic diagram of the structure of the air duct from another direction in an embodiment of this utility model.

[0019] Figure 6 This is a schematic diagram of the structure of the motor mounting cylinder in an embodiment of this utility model. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: See below Figures 1 to 6 A hair dryer mounting structure includes a blower tube 1, a handle 2, and a motor mounting tube 3 disposed within the blower tube 1. The motor mounting tube 3 includes an upper semi-circular shell 4 and a lower semi-circular shell 5. The upper semi-circular shell 4 and the lower semi-circular shell 5 are joined together to form a motor positioning cavity 6 with an inner diameter larger than the sides. A motor 7 is fixed inside the motor positioning cavity 6. A first positioning hole 8 is provided at the bottom of the motor mounting tube 3. A positioning part 9 is provided on the side of the blower tube 1 connected to the handle 2. A second positioning hole 10 is provided on the positioning part 9. A screw is inserted and fixed between the first positioning hole 8 and the second positioning hole 10. When assembling this hair dryer, the motor is placed into the motor positioning cavity 6 of the upper semi-circular shell 4 or the lower semi-circular shell 5. Then, the upper semi-circular shell 4 and the lower semi-circular shell 5 are joined together to form the motor mounting cylinder 3. The motor mounting cylinder 3 is then inserted into the blower tube 1. The first positioning hole 8 and the second positioning hole 10 are aligned, and a screw is inserted from the bottom of the second positioning hole 10 and screwed into the first positioning hole 8 to complete the assembly of the motor mounting cylinder 3. This design ensures impact resistance and reliability while also featuring a compact layout and convenient assembly.

[0021] In this embodiment, the upper semicircular shell 4 and the lower semicircular shell 5 are arranged vertically after assembly, and the two first positioning holes 8 are located on the lower semicircular shell 5. In other embodiments, the upper semicircular shell 4 and the lower semicircular shell 5 can also be arranged horizontally, and the first positioning holes 8 can be set at the bottom of the upper semicircular shell 4 and the lower semicircular shell 5.

[0022] In this embodiment, the handle 2 includes a central stem portion 11 integrally formed with the handle 2. A through hole 12 communicating with the handle 2 is provided on the side of the air duct 1 near the handle 2. An opening 13 is provided on the rear side of the central stem portion 11, and a rear stem portion 14 is covered by the opening 13. The positioning part 9 is located at the top of the opening 13. This structure allows for convenient operation of screw installation tools at the opening 13, making installation more convenient.

[0023] In this embodiment, a circuit board 15 is provided between the rear handle portion 14 and the middle handle portion 11.

[0024] In this embodiment, the rear handle 14 and the middle handle 11 are fixed together by screws. Of course, in other embodiments, the rear handle 14 and the middle handle 11 can also be fixed together by snap-fit.

[0025] In this embodiment, an air guide duct 21 is provided inside the air duct 1. One end of the air guide duct 21 abuts against the protruding ring 22 on the inner wall of the air duct 1, and the other end of the air guide duct 21 abuts against the motor mounting cylinder 3. This structure fixes the air guide duct 21 while simultaneously fixing the motor mounting cylinder 3.

[0026] In this embodiment, the inner wall of the air duct 1 is provided with an elastic limiting protrusion 17, and the outer wall of the motor mounting cylinder 3 is provided with a limiting ring 16. The side of the limiting ring 16 away from the air guide duct 21 abuts against the elastic limiting protrusion 17. This structure further improves the installation stability between the air duct 1 and the motor mounting cylinder 3.

[0027] In this embodiment, the upper semicircular shell 4 and the lower semicircular shell 5 are fastened together by a snap fastener.

[0028] In this embodiment, the upper semi-circular shell 4 and the lower semi-circular shell 5 are joined together on the outer wall to form an annular groove 18, and a sealing ring 19 is provided in the annular groove 18. This structure can further prevent the upper semi-circular shell 4 and the lower semi-circular shell 5 from separating.

[0029] In this embodiment, an air inlet mesh cover 20 is fastened to the tail end of the air duct 1. This structure allows for convenient installation of the air inlet mesh cover 20.

[0030] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A mounting structure for a hair dryer, comprising a blower tube (1), a handle (2), and a motor mounting tube (3) disposed within the blower tube (1), characterized in that: The motor mounting cylinder (3) includes an upper semi-circular shell (4) and a lower semi-circular shell (5). The upper semi-circular shell (4) and the lower semi-circular shell (5) are joined together to form a motor positioning cavity (6) with an inner diameter larger than the two sides. A motor (7) is fixed in the motor positioning cavity (6). A first positioning hole (8) is provided at the bottom of the motor mounting cylinder (3). A positioning part (9) is provided on the side of the air duct (1) connected to the handle (2). A second positioning hole (10) is provided on the positioning part (9). A screw is inserted and fixed between the first positioning hole (8) and the second positioning hole (10).

2. The installation structure of a hair dryer as described in claim 1, characterized in that: The handle (2) includes a middle stem (11) integrally formed with the handle (2). The air duct (1) is provided with a through hole (12) communicating with the handle (2) on one side near the handle (2). The middle stem (11) is provided with an opening (13) on the rear side. The opening (13) is covered with a rear stem (14). The positioning part (9) is located at the top of the opening (13).

3. The installation structure of a hair dryer as described in claim 2, characterized in that: A circuit board (15) is provided between the rear handle (14) and the middle handle (11).

4. The installation structure of a hair dryer as described in claim 2, characterized in that: The rear handle (14) and the middle handle (11) are fixed together by screws.

5. The installation structure of a hair dryer as described in claim 1, characterized in that: A guide tube (21) is provided inside the air duct (1). One end of the guide tube (21) abuts against the protruding ring (22) on the inner wall of the air duct (1), and the other end of the guide tube (21) abuts against the motor mounting cylinder (3).

6. The installation structure of a hair dryer as described in claim 5, characterized in that: The inner wall of the air duct (1) is provided with an elastic limiting protrusion (17), and the outer wall of the motor mounting cylinder (3) is provided with a limiting ring (16). The side of the limiting ring (16) away from the air duct (21) abuts against the elastic limiting protrusion (17).

7. The installation structure of a hair dryer as described in claim 1, characterized in that: The upper semicircular shell (4) and the lower semicircular shell (5) are fastened together by snap fasteners.

8. The installation structure of a hair dryer as described in claim 1, characterized in that: The upper semicircular shell (4) and the lower semicircular shell (5) are joined together on the outer wall to form an annular groove (18), and a sealing ring (19) is provided in the annular groove (18).

9. The installation structure of a hair dryer as described in claim 1, characterized in that: The air duct (1) is fitted with an air inlet mesh cover (20) at its tail.

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