Neck-hung fan comfortable to wear

Abstract

The utility model discloses a neck-hanging fan comfortable to wear, which comprises a support capable of being worn on the neck of a human body, the support is provided with shells positioned on two sides of the neck of the human body, each shell is provided with a front section and a rear section which extend along the length direction of the shell, the rear section is close to the rear side of the neck of the human body, and an air inlet cavity and a fan assembly are arranged in the rear section. An air inlet is formed in the outer surface of the rear section, an air supply cavity is formed in the front section, an air outlet is formed in the outer surface of the front section, the air inlet, the air inlet cavity, the air supply cavity and the air outlet are sequentially communicated, and the fan assembly conveys air in the air inlet cavity forwards to the air supply cavity. And the user can wear more comfortably.

Description

Technical Field

[0001] The utility model relates to the technical field of neck-hanging fans, in particular to a neck-hanging fan that is comfortable to wear. Background Art

[0002] A neck-hanging fan is a blower device that can be worn around the user's neck. It can move with the user and free the user's hands. It achieves the purpose of cooling and heat dissipation by blowing air towards the face and neck.

[0003] A neck-hanging fan typically consists of a bracket that can be worn around the neck. The bracket has a housing that is positioned on either side of the neck. The housing houses an air duct and fan assembly, while the housing has an air inlet and an air outlet. The fan assembly draws in outside air through the inlet, transports it to the duct, and finally blows it out through the outlet. However, in traditional neck-hanging fans, because the fan assembly is located at the extended end of the housing, wearing the fan can feel heavy and uncomfortable. Utility Model Content

[0004] The utility model aims to solve the deficiencies in the prior art and provides a neck-hanging fan that is comfortable to wear. The neck-hanging fan adopts a rearward center of gravity method to avoid a heavy feeling on the user when wearing it, making the user more comfortable to wear.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A neck-hanging fan that is comfortable to wear comprises a bracket that can be worn on the human neck, the bracket having shells located on both sides of the human neck, each of the shells having a front section and a rear section extending along the length direction of the shell, the rear section being close to the rear side of the human neck, an air inlet chamber and a fan assembly being provided in the rear section, an air inlet being provided on the outer surface of the rear section, an air supply chamber being provided in the front section, and an air outlet being provided on the outer surface of the front section, the air inlet, the air inlet chamber, the air supply chamber and the air outlet being connected in sequence, and the fan assembly transports the air in the air inlet chamber forward to the air supply chamber.

[0007] By arranging a front section and a rear section extending along the length direction of the shell on the shell, an air inlet chamber, a fan assembly and an air inlet are arranged on the rear section, and an air supply chamber and an air outlet are arranged on the front section, the air inlet, the air inlet chamber, the air supply chamber and the air outlet are connected in sequence, and the fan assembly transports the air in the air inlet chamber forward to the air supply chamber. The fan assembly is arranged on the rear section, so that the center of gravity of the neck hanging fan is placed backward, which avoids the user's feeling of heaviness when worn, making the user more comfortable to wear.

[0008] As a preferred solution, the cross section of the air supply cavity gradually decreases along the direction of air flow.

[0009] As a preferred solution, a first air guide plate extending obliquely is provided in the front section, and the first air guide plate and the inner wall of the front section form the air supply cavity.

[0010] As a preferred solution, a plurality of second air guide plates are spaced apart along the air flow direction in the air supply cavity, and the second air guide plates are located below the air outlet.

[0011] As a preferred solution, the heights of the plurality of second air guide plates gradually decrease along the air flow direction. As a preferred solution, the second air guide plates are arc-shaped air guide plates, and the arc-shaped air guide plates protrude in the air flow direction.

[0012] As a preferred solution, the air inlet includes a first air inlet, and the first air inlet is arranged on the outer surface of the rear section away from the human neck.

[0013] As a preferred solution, the air inlet further includes a second air inlet, and the second air inlet is arranged on the outer surface of the rear section facing the human neck.

[0014] As a preferred solution, the air outlet is a single strip-shaped hole extending along the length direction of the shell, or a plurality of strip-shaped holes distributed along the length direction of the shell, or a plurality of small holes arranged at close intervals.

[0015] As a preferred solution, the fan assembly has an air guide tube, a first impeller, a second impeller and a motor. The first impeller is arranged at one end of the air guide tube close to the air inlet. The motor drives the first impeller to rotate. The second impeller is arranged at one end of the air guide tube close to the air supply chamber. The spiral direction of the first blade on the first impeller is opposite to that of the second blade on the second impeller.

[0016] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, by arranging a front section and a rear section extending along the length direction of the shell on the shell, an air inlet chamber, a fan assembly and an air inlet are arranged on the rear section, and an air supply chamber and an air outlet are arranged on the front section. The air inlet, the air inlet chamber, the air supply chamber and the air outlet are connected in sequence, and the fan assembly transports the air in the air inlet chamber forward to the air supply chamber. The fan assembly is arranged on the rear section, so that the center of gravity of the neck hanging fan is placed backward, which avoids the user's feeling of heaviness when worn, making the user more comfortable to wear.

[0017] In order to more clearly illustrate the structural features, technical means and specific purposes and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the utility model;

[0019] Figure 2 It is a cross-sectional schematic diagram of an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of an embodiment of the present utility model;

[0021] Figure 4 yes Figure 3 Side view of

[0022] Figure 5 This is a schematic diagram of the assembly of a fan assembly according to an embodiment of the present invention;

[0023] Figure 6 This is an exploded schematic diagram of a fan assembly according to an embodiment of the present invention.

[0024] Description of the accompanying drawings:

[0025] 10-bracket, 11-shell, 111-inner shell, 112-outer shell, 12-front section, 13-rear section, 14-air inlet chamber, 15-air inlet, 16-air supply chamber, 17-air outlet, 18-first air guide plate, 19-second air guide plate, 20-fan assembly, 21-air guide tube, 22-first impeller, 221-first blade, 23-second impeller, 231-second blade, 232-first ventilation hole, 24-air guide cover, 241-second ventilation hole. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0028] like Figure 1-6 As shown, the utility model discloses a neck-hanging fan that is comfortable to wear, comprising a bracket 10 that can be worn on the human neck, and the bracket 10 has a shell 11 located on both sides of the human neck.

[0029] Each of the shells 11 has a front section 12 and a rear section 13 extending along the length direction of the shell 11 , and the rear section 13 is close to the back side of the human neck.

[0030] An air inlet cavity 14 and a fan assembly 20 are provided in the rear section 13 , and an air inlet 15 is provided on an outer surface of the rear section 13 .

[0031] An air supply cavity 16 is provided in the front section 12 , and an air outlet 17 is provided on the outer surface of the front section 12 .

[0032] The air inlet 15 , the air inlet cavity 14 , the air supply cavity 16 and the air outlet 17 are connected in sequence, and the fan assembly 20 transports the air in the air inlet cavity 14 forward to the air supply cavity 16 .

[0033] The cross-section of the air supply cavity 16 gradually decreases along the direction of air flow; by setting the air supply cavity 16 with a cross-section gradually decreasing along the direction of air flow, the air pressure at various locations in the air supply cavity 16 is kept consistent, thereby making the air volume and air speed of the air outlet 14 uniform, and the blowing effect is better.

[0034] The front section 13 is provided with an inclined first air guide plate 18 , which together with the inner wall of the front section 13 form the air supply cavity 16 . The inclined first air guide plate 18 is provided to guide air to flow smoothly in the air supply cavity 16 .

[0035] A plurality of second air guide plates 19 are spaced apart in the air supply cavity 16 along the air flow direction. The second air guide plates 19 are located below the air outlet 17, and the distance L between two adjacent second air guide plates 19 is 10 mm to 50 mm. By setting the second air guide plates, the second air guide plates 19 are located below the air outlet 17, and the second air guide plates 19 are used to guide the air in the air supply cavity 16 to flow toward the air outlet 17, so that the air flow is smoother.

[0036] The height h of the multiple second air guide plates 19 along the air flow direction gradually decreases. The height h of the second air guide plates 19 is defined as the distance between the end of the second air guide plate 19 close to the air outlet 17 and the end away from the air outlet 17. The height h of the second air guide plate 19 is 3mm to 10mm. By setting multiple second air guide plates 19, the height h along the air flow direction gradually decreases, so that the air outlet 17 at each position along the length of the shell 11 has good uniformity.

[0037] The second air guide plate 19 is an arc-shaped air guide plate, which protrudes in an arc shape toward the flow direction of the air. By adopting the arc-shaped air guide plate, the air guiding effect is improved.

[0038] The housing 11 includes an inner shell 111 and an outer shell 112 . The inner shell 111 and the outer shell 112 can be connected by screws or by snapping. The first air deflector 18 and the second air deflector 19 are both provided on the inner shell.

[0039] The air inlet 15 includes a first air inlet 151 . The first air inlet 151 is located on the outer surface of the rear section 13 away from the human neck. The first air inlet 151 has a plurality of circular holes.

[0040] The air inlet 15 also includes a second air inlet 152, which is arranged on the outer surface of the rear section 13 facing the human neck, and the second air inlet 152 has a plurality of long holes arranged side by side; by arranging the second air inlet 152 on the outer surface of the rear section 13 facing the human neck, when the second air inlet 152 inhales air, it can drive the air flow on the back side of the human neck, thereby improving the heat dissipation effect on the back side of the human neck.

[0041] The air outlet 17 is a single strip-shaped hole extending along the length direction of the housing 11 .

[0042] The air outlet 17 may also be a plurality of strip-shaped holes distributed along the length direction of the housing 11 , or a plurality of small holes arranged at close intervals.

[0043] The fan assembly 20 includes an air guide tube 21, a first impeller 22, a second impeller 23 and a motor (not shown). The air guide tube 21 is installed on the inner wall of the air inlet chamber 14. The first impeller 22 is arranged at one end of the air guide tube 21 close to the air inlet 15. The motor drives the first impeller 22 to rotate. The second impeller 23 is arranged at one end of the air guide tube 21 close to the air supply chamber 16. The first blade 221 on the first impeller 22 and the second blade 231 on the second impeller 23 have opposite spiral directions. A first ventilation hole 232 connected to the air supply chamber 16 is formed between two adjacent second blades 231. By arranging the second blade 231 and the first blade 221 with opposite spiral directions, the second blade 231 can prevent the air in the air supply chamber 16 from flowing back to the air guide tube 21, thereby enhancing the pressure of the air entering the air supply chamber 16 and improving the blowing effect.

[0044] The second blade 231 extends in a counterclockwise spiral toward the direction approaching the first impeller 22, and the first blade 221 extends in a clockwise spiral toward the direction away from the second impeller 23. It can be understood that the second blade 231 can also be set to extend in a clockwise spiral toward the direction approaching the first impeller 22, and the first blade 221 can be correspondingly set to extend in a clockwise spiral toward the direction away from the second impeller 23.

[0045] An air guide cover 24 is provided between the second impeller 23 and the air supply chamber 16. A plurality of second ventilation holes 241 are arranged on the air guide cover 24. The first ventilation holes 232, the second ventilation holes 241 and the air supply chamber 16 are connected in sequence. By providing the air guide cover 24, the air is dispersed and evenly output by utilizing the second ventilation holes 241 on the air guide cover 24.

[0046] The motor is a high-speed motor, and the rotation speed of the high-speed motor exceeds 6000 rpm; by adopting the high-speed motor, the air intake, air output and air output efficiency of the neck hanging fan are higher, and the blowing effect is better.

[0047] In summary, the utility model arranges a front section 12 and a rear section 13 extending along the length direction of the shell 11 on the shell 11, arranges an air inlet chamber 14, a fan assembly 20 and an air inlet 15 on the rear section 13, and arranges an air supply chamber 16 and an air outlet 17 on the front section 12. The air inlet 15, the air inlet chamber 14, the air supply chamber 16 and the air outlet 17 are connected in sequence. The fan assembly 20 transports the air in the air inlet chamber 14 forward to the air supply chamber 16. The fan assembly 20 is arranged on the rear section 13, so that the center of gravity of the neck hanging fan as a whole is placed backward, which avoids the user's feeling of heaviness when worn, making the user more comfortable to wear.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made to the above embodiments based on the technical practice of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A comfortable neck fan, comprising a bracket that can be worn on the human neck, the bracket having a shell located on both sides of the human neck, characterized in that: Each of the shells has a front section and a rear section extending along the length direction of the shell, and the rear section is close to the back side of the human neck; An air inlet cavity and a fan assembly are provided in the rear section, and an air inlet is provided on the outer surface of the rear section; An air supply cavity is provided in the front section, and an air outlet is provided on the outer surface of the front section; The air inlet, the air inlet cavity, the air supply cavity and the air outlet are connected in sequence, and the fan assembly transports the air in the air inlet cavity forward to the air supply cavity.

2. The comfortable neck fan according to claim 1, characterized in that: The cross section of the air supply cavity gradually decreases along the direction of air flow.

3. The comfortable-to-wear neck fan according to claim 1, characterized in that: A first air guide plate extending obliquely is provided in the front section, and the first air guide plate and the inner wall of the front section form the air supply cavity.

4. The comfortable neck fan according to claim 1, characterized in that: A plurality of second air guide plates are spaced apart in the air supply cavity along the air flow direction, and the second air guide plates are located below the air outlet.

5. The comfortable-to-wear neck fan according to claim 4, characterized in that: The heights of the plurality of second air guide plates gradually decrease along the air flow direction.

6. The comfortable neck fan according to claim 5, characterized in that: The second air guide plate is an arc-shaped air guide plate, and the arc-shaped air guide plate protrudes in an arc shape toward the flow direction of air.

7. The comfortable neck fan according to claim 1, characterized in that: The air inlet includes a first air inlet, which is arranged on the outer surface of the rear section away from the human neck.

8. The comfortable-to-wear neck fan according to claim 1, characterized in that: The air inlet further includes a second air inlet, which is arranged on the outer surface of the rear section facing the human neck.

9. The comfortable-to-wear neck fan according to claim 1, characterized in that: The air outlet is a single strip-shaped hole extending along the length direction of the shell, or a plurality of strip-shaped holes distributed along the length direction of the shell, or a plurality of small holes arranged at close intervals.

10. The comfortable-to-wear neck fan according to claim 1, characterized in that: The fan assembly includes an air guide tube, a first impeller, a second impeller and a motor. The first impeller is arranged at one end of the air guide tube close to the air inlet. The motor drives the first impeller to rotate. The second impeller is arranged at one end of the air guide tube close to the air supply chamber. The spiral direction of the first blade on the first impeller is opposite to that of the second blade on the second impeller.

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