Large-air-volume electric hair drier

Abstract

Air enters from the rear end of the electric hair drier, air exits from the front end of the electric hair drier, a motor support is arranged in a machine shell, a motor and an air inlet filter screen are sequentially installed in the motor support from front to back, a screen cover assembly part surrounding the outer side of the motor support is installed at the rear end of the machine shell, a filter screen cover is installed on the screen cover assembly part, and the filter screen cover is located on the rear side of the air inlet filter screen. An air inlet gap leading to the outer side wall of the motor support is reserved between the outer side wall of the motor support and the inner side wall of the net cover assembly part, and an air inlet side through hole leading to the position between the motor and the air inlet filter screen is formed in the outer side wall of the motor support, so that a main air inlet channel leading to the motor through the air inlet filter screen from the filter net cover is formed. And the air inlet auxiliary channel is communicated to the motor through the air inlet gap and the air inlet side through hole in sequence. On the basis that double filtration of the filter screen cover and the air inlet filter screen is kept, namely, the air inlet main channel is reserved, the air inlet auxiliary channel is additionally arranged and is one more than that in the prior art, and the air inlet amount is larger than that in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of hair dryers, in particular to a hair dryer with large air volume. Background Art

[0002] The air enters the hair dryer from the rear end and exits from the front end. A motor bracket is provided in the hair dryer housing, a motor is installed in the motor bracket, and an air inlet filter is installed on the rear side of the motor. A mesh cover assembly surrounding the outside of the motor bracket is installed at the rear end of the housing, and a filter cover is installed on the mesh cover assembly. The filter cover is located behind the air inlet filter, forming a main air inlet channel starting from the filter cover, passing through the air inlet filter to the motor; when the motor rotates, the air at the rear forms wind that passes through the main air inlet channel and then blows forward. The filter cover and the air inlet filter play a dual filtering role, but this will hinder the air intake, resulting in a small air intake volume. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a hair dryer with large air volume on the basis of maintaining double filtering of the filter screen cover and the air inlet filter screen.

[0004] In order to solve the above technical problems, the utility model provides a hair dryer with large air volume, which has air intake at the rear end and air outlet at the front end. A motor bracket is provided in a casing, and a motor and an air inlet filter are installed in the motor bracket from front to back in sequence. A mesh cover assembly surrounding the outside of the motor bracket is installed in the rear end of the casing, and a filter cover is installed on the mesh cover assembly. The filter cover is located on the rear side of the air inlet filter, forming a main air inlet channel starting from the filter cover and passing through the air inlet filter to the motor. An air inlet gap leading to the outer wall of the motor bracket is left between the outer wall of the motor bracket and the inner wall of the mesh cover assembly. An air inlet side through hole is opened on the outer wall of the motor bracket to connect to the motor and the air inlet filter, forming an air inlet secondary channel starting from the filter cover and passing through the air inlet gap and the air inlet side through hole to the motor in sequence.

[0005] Furthermore, a notch is provided at the junction of the outer wall of the motor bracket and the rear wall so as to form an air inlet gap provided by the utility model between the inner wall of the mesh cover assembly.

[0006] Furthermore, the utility model provides at least 4 notches arranged circumferentially.

[0007] Furthermore, the casing comprises a casing body, a ring screen is installed on the rear wall of the casing body, the casing extends backward from the hollow of the ring screen, and the rear end of the casing is located behind the inner side of the ring screen.

[0008] Furthermore, the air inlet filter is located behind the inner side of the annular screen.

[0009] Furthermore, the air inlet side through hole is located at the inner rear of the annular screen.

[0010] Furthermore, the housing body has a gripping portion for a person to hold.

[0011] Furthermore, the motor comprises a motor casing which penetrates front to back, wherein a motor body, a motor shaft extending backward from the motor body and a fan blade sleeved on the motor shaft are arranged in the motor casing.

[0012] Furthermore, the filter screen cover provided by the utility model has a double-layer filter screen.

[0013] On the basis of maintaining the double filtration of the filter cover and the air inlet filter, that is, retaining the main air inlet channel starting from the filter cover and passing through the air inlet filter to the motor, the utility model leaves an air inlet gap leading to the outer wall of the motor bracket between the outer wall of the motor bracket and the inner wall of the mesh cover assembly, and the outer wall of the motor bracket is provided with an air inlet side through hole leading to the motor and the air inlet filter, thereby forming an air inlet side channel starting from the filter cover and passing through the air inlet gap and the air inlet side through hole to the motor in sequence. When the motor rotates, the air at the rear forms wind, part of which passes through the main air inlet channel and part of which passes through the air inlet side channel. The utility model has two air inlet channels, one more than the background technology, and the air intake volume is larger than the background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the hair dryer of the utility model;

[0015] Figure 2 It is an exploded view of the hair dryer of the utility model;

[0016] Figure 3 It is a schematic diagram of the hair dryer of the utility model after the net cover assembly and the double-layer filter cover are hidden;

[0017] Figure 4 is along Figure 1 Section symbol: Section view with longitudinal section;

[0018] Figure 5 yes Figure 3 The enlarged view of point A in the middle;

[0019] Figure 6 yes Figure 4 The enlarged view of point B in the middle;

[0020] Figure 7 This is a schematic diagram of the motor bracket and motor.

[0021] Explanation of the reference numerals: 1. motor bracket; 11. notch; 12. air inlet side through hole; 2. motor; 21. motor body; 22. motor shaft; 23. fan blade; 24. motor housing; 3. double-layer filter screen cover; 31. outer filter screen cover; 32. inner filter screen cover; 4. casing; 41. front casing; 411. front casing grip; 42. rear casing; 421. rear casing grip; 43. extension cylinder casing; 44. rear end of casing; 45. assembly through hole; 5. mesh cover assembly; 61. air inlet end; 62. air outlet end; 7. air inlet filter; 8. air inlet gap; 9. annular screen; 10. grip. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with specific implementation methods.

[0023] See Figure 1 The hair dryer comprises a front housing 41 and a rear housing 42 connected front and back, the front housing 41 has a front housing grip 411 extending downward, the rear housing 42 has a rear housing grip 421 extending downward, the front housing grip 411 and the rear housing grip 421 are connected front and back to form a grip 10 for a person to hold. Figure 2 The rear wall of the rear housing 42 is provided with an annular screen 9, and the rear housing 42 is provided with an assembly through hole 45 in the hollow of the annular screen 9. The hair dryer includes an extended cylinder shell 43 passing through the assembly through hole 45, such as Figure 3 As shown, the front end of the extension shell 43 is buckled on the inner wall of the rear shell 42 and the rear end 44 is located behind the inner side of the annular screen 9. The front shell 41 and the rear shell 42 form a shell body, and the gripping portion 10 formed by the front shell gripping portion 411 and the rear shell gripping portion 421 is the gripping portion 10 of the shell body; the shell body and the extension shell 43 form the shell 4, and the rear end 44 of the extension shell 43 is the rear end 44 of the shell 4. Figure 3 The rear end 44 of the housing is provided with a net cover assembly 5, on which a double-layer filter net cover 3 is installed, and the double-layer filter net cover 3 plays a first filtering role. Figure 2 , which includes an outer filter screen cover 31 and an inner filter screen cover 32. Figure 4 The housing 4 is provided with a motor bracket 1, and the motor bracket 1 is provided with a motor 2. Figure 6 The motor 2 includes a motor housing 24 that is through from front to back, and the motor housing 24 is provided with a motor body 21, a motor shaft 22 extending backward from the motor body 21, and a fan blade 23 sleeved on the motor shaft 22. The motor bracket 1 is provided with an air inlet filter 7 at the rear side of the motor 2, and the air inlet filter 7 plays a second filtering role, and is located behind the inner side of the annular screen 9. Figure 7There are four gaps 11 arranged around the junction of the outer wall of the motor bracket 1 and the rear wall; the outer wall of the motor bracket 1 is provided with air inlet side through holes 12 leading to between the motor 2 and the air inlet filter 7, and there are four air inlet side through holes 12, and the positions correspond to the four gaps 11 respectively; the four gaps 11 all lead to the outer wall of the motor bracket 1, and lead to the four air inlet side through holes 12 respectively. Figure 5 The mesh cover assembly 5 surrounds the outside of the motor bracket 1, and four air inlet gaps 8 are formed between the four notches 11 on the outer wall of the motor bracket 1 and the inner wall of the mesh cover assembly 5. Similarly, the four air inlet gaps 8 lead to four air inlet side through holes 12 respectively.

[0024] See Figure 1 The rear end of the hair dryer is an air inlet end 61, and the front end is an air outlet end 62. Figure 6 The double-layer filter cover 3 is arranged at the air inlet end 61 of the hair dryer, and is located at the rear side of the air inlet filter 7, forming a main air inlet passage starting from the double-layer filter cover 3, passing through the air inlet filter 7 to the motor 2; the double-layer filter cover 3 is also located at the rear side of the air inlet gap 8, forming a secondary air inlet passage starting from the double-layer filter cover 3, passing through the air inlet gap 8 and the air inlet side through hole 12 to the motor 2 in sequence. The motor body 21 drives the fan blade 23 to rotate through the motor shaft 22, and the air behind forms wind, part of which passes through the main air inlet passage and part of which passes through the secondary air inlet passage. The hair dryer has two air inlet passages, and the air intake is large.

[0025] In other embodiments, the number of the notches 11 can be changed to be greater than 4, such as 5, 6, 7, etc.

[0026] The above is only an implementation method of the invention, and does not limit the scope of patent protection. Those skilled in the art can make non-substantial changes or substitutions based on the invention, which still fall within the scope of patent protection.

Claims

1. A hair dryer with a large air volume, wherein the rear end (61) of the hair dryer is for air intake and the front end (62) is for air discharge. A motor bracket (1) is provided in a housing (4). A motor (2) and an air inlet filter (7) are installed in the motor bracket (1) from front to back. A mesh cover assembly (5) surrounding the outside of the motor bracket (1) is installed at the rear end (44) of the housing. A filter cover (3) is installed on the mesh cover assembly (5). The filter cover (3) is located at the rear side of the air inlet filter (7), forming a main air inlet passage starting from the filter cover (3) and passing through the air inlet filter (7) to the motor (2). The hair dryer is characterized in that: An air inlet gap (8) leading to the outer wall of the motor bracket (1) is left between the outer wall of the motor bracket (1) and the inner wall of the mesh cover assembly (5). An air inlet side through hole (12) is opened on the outer wall of the motor bracket (1) leading to between the motor (2) and the air inlet filter (7), thereby forming an air inlet secondary channel starting from the filter cover (3) and sequentially passing through the air inlet gap (8) and the air inlet side through hole (12) to the motor (2).

2. The hair dryer with high air volume according to claim 1, characterized in that the motor A notch (11) is provided at the junction of the outer wall of the bracket (1) and the rear wall, thereby forming the air inlet gap (8) between the bracket and the inner wall of the net cover assembly part (5).

3. The hair dryer with high air volume according to claim 2, characterized in that: There are at least four notches (11) arranged circumferentially.

4. The hair dryer with large air volume according to claim 1, characterized in that: The casing (4) comprises a casing body (41, 42), a ring screen (9) is installed on the rear wall of the casing body (41, 42), the casing (4) extends backward from the hollow of the ring screen (9), and the casing rear end (44) is located behind the inner side of the ring screen (9).

5. The hair dryer with large air volume according to claim 4, characterized in that: The air inlet filter (7) is located at the inner rear of the annular screen (9).

6. The hair dryer with high air volume according to claim 5, characterized in that: The air inlet side through hole (12) is located at the inner rear of the annular screen (9).

7. The hair dryer with large air volume according to claim 4, characterized in that: The casing body (41, 42) has a gripping portion (10) for a person to hold.

8. The hair dryer with large air volume according to claim 1, characterized in that: The motor (2) comprises a motor housing (24) which penetrates from front to back, wherein a motor body (21), a motor shaft (22) extending backward from the motor body (21), and a fan blade (23) sleeved on the motor shaft (22) are arranged in the motor housing (24).

9. The hair dryer with large air volume according to claim 1, characterized in that: The filter screen cover (3) has a double-layer filter screen.

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