Neck-hung fan capable of blowing air in multiple directions

Abstract

The utility model belongs to the technical field of neck-hanging fans, and particularly relates to a neck-hanging fan capable of blowing air in multiple directions. A multi-directional blowing neck-hanging fan comprises a neck-wearing frame, a fan body and a fan body, and air inlets are formed in the two ends of the neck-wearing frame; the fan is arranged in the neck-wearing frame and located at the air inlet; the air duct pipe is arranged in the neck wearing frame and extends in the length direction of the neck wearing frame, the air duct pipe communicates with the fan and is used for guiding air flow generated by the fan, and the air duct pipe is provided with a lower ventilation opening for guiding the air flow downwards; the upper branch flow pipe is arranged in the neck wearing frame and located on the upper side of the air duct pipe, the upper branch flow pipe communicates with the air duct pipe, and the upper branch flow pipe is provided with an upper ventilation opening for guiding air upwards; the side branch flow pipe is arranged in the neck wearing frame and located on the inner side of the air duct pipe, the side branch flow pipe is communicated with the air duct pipe, and the side branch flow pipe is provided with a side ventilation opening for guiding air flow to the inner side. The cooling device has the advantages of being capable of blowing air in multiple directions so as to achieve the comprehensive and uniform cooling effect.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of hanging neck fan, especially relate to a hanging neck fan of blowing in many directions. BACKGROUND

[0002] With the popularity of portable electronic devices, the demand for personal cooling devices is increasing, especially in outdoor activities, sports, commuting or office scenarios, users have high demand for portable, efficient and comfortable cooling devices. As a new type of personal cooling device, hanging neck fan gradually wins the market favor because of its portability and direct air supply characteristics.

[0003] However, the traditional hanging neck fan has the problems of uneven cooling and poor comfort due to the single air outlet direction. For example, the traditional hanging neck fan usually blows air only on the lower side of the neck support, and the air flow of such hanging neck fan is concentrated on the lower side, which may cause discomfort to the skin under the local neck for a long time, and even cause dryness or coldness. In addition, the middle side, upper side and head of the neck cannot blow air, which limits the cooling range and cannot achieve overall and uniform cooling effect. SUMMARY

[0004] To solve the problems in the prior art, a hanging neck fan capable of blowing air in multiple directions to achieve overall and uniform cooling effect is provided.

[0005] The utility model adopts the following technical scheme to be realized: a hanging neck fan of blowing in multiple directions, comprising:

[0006] A neck support is provided with an air inlet at both ends;

[0007] A fan is arranged in the neck support and located at the air inlet;

[0008] A duct pipe is arranged in the neck support and extends along the length direction of the neck support, the duct pipe is communicated with the fan and used for guiding the air flow generated by the fan, and the duct pipe is provided with a lower air vent for downward guiding the air flow;

[0009] An upper branch pipe is arranged in the neck support and located at the upper side of the duct pipe, the upper branch pipe is communicated with the duct pipe, and the upper branch pipe is provided with an upper air vent for upward guiding the air flow; and

[0010] A side branch pipe is arranged in the neck support and located at the inner side of the duct pipe, the side branch pipe is communicated with the duct pipe, and the side branch pipe is provided with a side air vent for inwardly guiding the air flow.

[0011] The lower side, upper side and inner side of the neck support are respectively provided with a lower air outlet, an upper air outlet and a side air outlet corresponding to the lower air vent, the upper air vent and the side air vent.

[0012] The wind channel pipe, the upper branch pipe and the side branch pipe are used to respectively guide the air flow, so that the air flow flows out from the lower air outlet, the upper air outlet and the side air outlet of the neck-wearing frame shell, and multi-area cooling of the neck and head of the wearer is realized. The lower air outlet can accurately guide the air flow to the lower side of the wearer's neck to provide basic cooling effect; the upper air outlet can extend the air flow to the upper side of the neck and the head to expand the cooling coverage; and the side air outlet can uniformly distribute the air flow to the middle side of the neck to supplement the cooling area and avoid local overheating. Through the multi-directional flow distribution design, the air flow is uniformly distributed to the upper, middle and lower areas of the neck and the head, avoiding the problem that the air flow is concentrated on the lower side in the traditional design. The design not only expands the cooling range, but also realizes comprehensive and uniform cooling effect, improving the comfort and use experience of the wearer.

[0013] Among them, the above-mentioned inner side refers to the outer inner side of the wind channel pipe, that is, the direction close to the inner side of the neck-wearing frame, not the inner inner side of the wind channel pipe.

[0014] Among them, the wind channel pipe can extend to the back side of the neck or to the position corresponding to the shoulder of the neck.

[0015] Preferably, the internal diameter of the wind channel pipe gradually decreases along the internal air flow direction thereof.

[0016] The internal diameter of the wind channel pipe gradually decreases along the internal air flow direction thereof to achieve the effect of concentrating air flow and improve the wind speed when the air flows out.

[0017] Preferably, the wind channel pipe includes a lower side wall and an upper side wall located on the upper and lower sides of the wind channel pipe respectively, the lower side wall is arranged in parallel with the inner wall of the neck-wearing frame, and the upper side wall is arranged inclined to the inner wall of the neck-wearing frame, and the distance between the upper side wall and the lower side wall gradually decreases along the air flow direction inside the wind channel pipe, so as to realize that the internal diameter of the wind channel pipe gradually decreases along the internal air flow direction thereof.

[0018] Since the lower air outlet is used to ensure basic cooling, its length is usually longer, so arranging the lower side wall in parallel with the inner wall of the neck-wearing frame is more in line with the air exhaust demand of the lower air outlet, and the internal diameter of the wind channel pipe gradually decreases along the internal air flow direction thereof by arranging the upper side wall inclined and gradually reducing the distance between the upper side wall and the lower side wall.

[0019] Preferably, the upper branch pipe and the side branch pipe are arranged at one end of the wind channel pipe close to the fan.

[0020] The wind speed gradually decreases during the transmission of the wind flow in the air duct pipe. In order to ensure that the wind speed in the upper branch pipe and the side branch pipe remains at a high level, the upper branch pipe and the side branch pipe are arranged at the end of the air duct pipe close to the fan. This design can maximize the wind speed in the upper branch pipe and the side branch pipe, thereby ensuring that the wind of the upper air outlet and the side air outlet has sufficient wind speed to effectively cover the head and face area of the wearer, achieving the ideal cooling effect.

[0021] Preferably, the internal diameter of the upper branch pipe and the side branch pipe gradually increases along the wind flow direction thereof.

[0022] Through the above arrangement, the wind of the upper branch pipe and the side branch pipe can cover a larger area when blown out.

[0023] Preferably, the upper branch pipe and the side branch pipe are respectively provided with an upper branch pipe rear side wall and a side branch pipe rear side wall facing away from the fan side, and the upper branch pipe rear side wall and the side branch pipe rear side wall both extend to the end side of the air duct pipe so that the internal diameter of the upper branch pipe and the side branch pipe gradually increases along the wind flow direction thereof.

[0024] Since the shape and extension direction of the air duct pipe determine the direction of the wind flow, the upper branch pipe rear side wall and the side branch pipe rear side wall both extend to the end side of the air duct pipe so that the internal diameter of the upper branch pipe and the side branch pipe gradually increases along the wind flow direction thereof; this design is more in line with the direction of the wind flow, and can reduce the energy loss of the wind flow. The end close to the fan of the air duct pipe is the first end, and the end away from the fan is the end.

[0025] Preferably, the air duct pipe comprises an inner side wall, and a wind guide protrusion extending to the inside of the air duct pipe is arranged between the connection between the side branch pipe rear side wall and the inside of the air duct pipe.

[0026] Since the upper side wall of the air duct pipe is inclined, and the upper branch pipe is arranged on the upper side wall, the opening at the connection between the upper branch pipe and the upper side wall has a height difference between the end close to the fan and the end away from the fan, so the wind can easily enter the upper branch pipe; the inner side wall of the air duct pipe has an arc, but is not inclined, so the opening at the connection between the side branch pipe and the inner side wall does not have a height difference between the end close to the fan and the end away from the fan, so the wind is not easy to enter the side branch pipe, so by arranging the wind guide protrusion, the wind guide protrusion can hinder part of the wind flow, facilitating the wind flow to enter the side branch pipe, to achieve the effect of air outlet on the inner side of the neck-wearing frame.

[0027] Preferably, the wind guide protrusion extends along the extension direction of the side branch pipe rear side wall, and the two are smoothly connected.

[0028] Through the above arrangement, the wind flow can be further guided, and the energy loss of the wind flow can be reduced.

[0029] As preferred, the neck-wearing frame comprises side shells constituting left and right sections of the neck-wearing frame and a rear shell constituting a rear section of the neck-wearing frame, the wind channel pipe is fixed in the side shell; the rear shell is rotationally connected with the two side shells, the rear shell is hollow and internally provided with a baffle extending along the length direction thereof and separating the inner cavity of the rear shell into an upper cavity and a lower cavity, the end of the wind channel pipe is aligned with the lower cavity and supplies air to the lower cavity, and the rear shell is provided with a rear air outlet communicating with the lower cavity.

[0030] The rotationally connecting of the rear shell with the side shells can adapt to the thickness of necks of different wearers, and the rear shell can guide air to the rear side of the neck to improve the coverage range of the air. The rear shell is divided into the upper cavity and the lower cavity by the baffle, and only the lower cavity is aligned with the wind channel pipe to reduce the aperture of the wind channel, so as to ensure that the air blown out of the rear shell has a large speed to improve the comfort of the wearer during use.

[0031] As preferred, the aperture of the end of the lower cavity along the air flow direction is smaller than the aperture of the beginning of the lower cavity along the air flow direction.

[0032] The aperture of the lower cavity along the air flow direction is further reduced to ensure that air can be blown to the rear neck of the wearer to improve the comfort of the wearer during use. The way that the aperture of the end of the lower cavity is smaller than the aperture of the beginning of the lower cavity can be that the baffle is bent to the side of the lower cavity to reduce the aperture of the lower cavity, or the thickness of the baffle changes to reduce the aperture of the lower cavity.

[0033] Compared with the prior art, the utility model has the advantages that the multi-directional air outlet not only enlarges the cooling range, but also realizes comprehensive and uniform cooling effect, and improves the comfort and use experience of the wearer. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a structure schematic view of the upper side of the neck-wearing frame of the utility model;

[0035] Figure 2 It is a structure schematic view of the lower side of the neck-wearing frame of the utility model;

[0036] Figure 3 It is a structure schematic view of the rear shell of the utility model;

[0037] Figure 4 It is a structure schematic view of the rear shell of the utility model; Figure 3 It is a structure schematic view of the rear shell of the utility model;

[0038] Figure 5 It is a structure schematic view of the fan and the wind channel pipe;

[0039] Figure 6 It is a structure schematic view of the fan and the wind channel pipe;

[0040] Figure 7 for Figure 5 A sectional view.

[0041] Reference numerals: 1. Neck brace; 11. Side shell; 12. Rear shell; 2. Air inlet; 21. Lower air outlet; 22. Upper air outlet; 23. Side air outlet; 24. Rear air outlet; 3. Air duct; 31. Upper side wall; 32. Lower side wall; 33. Inner side wall; 34. Lower vent; 4. Upper branch pipe; 41. Rear side wall of upper branch pipe; 42. Upper vent; 5. Side branch pipe; 51. Rear side wall of side branch pipe; 52. Side vent; 53. Air guide protrusion; 6. Baffle; 61. Lower cavity; 62. Upper cavity; 7. Fan. Detailed Implementation

[0042] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0043] like Figures 1 to 3 As shown, this embodiment discloses a multi-directional airflow neck fan, including a neck frame 1. The neck frame 1 is generally U-shaped and includes side shells 11 forming the left and right sections of the neck frame 1 and a rear shell 12 forming the rear section of the neck frame 1. The two side shells 11 are rotatably connected to the rear shell 12 to accommodate different neck sizes of wearers. Each side shell 11 is equipped with a fan 7 and an air duct 3. The end of the side shell 11 is an air inlet 2, and the fan 7 is located at the air inlet 2. The air duct 3 is hollow and extends along the length of the side shell 11. The air duct 3 communicates with the fan 7 and is used to guide the airflow generated by the fan 7. The fan 7 is a conventional cylindrical fan.

[0044] like Figures 5 to 7 As shown, the duct 3 includes an upper sidewall 31 and a lower sidewall 32 located on the upper and lower sides of the duct 3, and an inner sidewall 33 located inside the duct 3. A lower ventilation opening 34 extending along the length of the lower sidewall 32 is provided on the lower sidewall 32, and the length of the lower ventilation opening 34 is approximately the same as the length of the entire duct 3. The lower sidewall 32 is parallel to the inner wall of the side shell 11, while the upper sidewall 31 is inclined relative to the inner wall of the side shell 11. The distance between the upper sidewall 31 and the lower sidewall 32 gradually decreases along the airflow direction inside the duct 3, so that the internal diameter of the duct 3 gradually decreases along its internal airflow direction.

[0045] An upper branch pipe 4 is arranged on the upper side wall 31, and a side branch pipe 5 is arranged on the inner side wall 33. The upper branch pipe 4 and the side branch pipe 5 are arranged at the end of the air duct pipe 3 close to the fan 7. The upper branch pipe 4 extends upward as a whole and is provided with an upper air vent 42 opening upward, and the side branch pipe 5 extends inward as a whole and is provided with a side air vent 52 opening inward. The lower side wall 32, the upper side wall 31 and the inner side wall 33 of the side shell 11 are respectively provided with a lower air outlet 21, an upper air outlet 22 and a side air outlet 23 corresponding to the lower air vent 34, the upper air vent 42 and the side air vent 52. The upper branch pipe 4 and the side branch pipe 5 are integrally formed with the air duct pipe 3.

[0046] The upper branch pipe 4 and the side branch pipe 5 are respectively provided with an upper branch pipe rear side wall 41 and a side branch pipe rear side wall 51 facing away from the side of the fan 7. The upper branch pipe rear side wall 41 and the side branch pipe rear side wall 51 extend to the end side of the air duct pipe 3 so that the internal aperture of the upper branch pipe 4 and the side branch pipe 5 gradually increases along the air flow direction thereof.

[0047] The side branch pipe rear side wall 51 and the connection between the side branch pipe rear side wall 51 and the inside of the air duct pipe 3 are provided with a wind guide protrusion 53 extending to the inside of the air duct pipe 3. The wind guide protrusion 53 extends along the extension direction of the side branch pipe rear side wall 51 and smoothly connects the side branch pipe rear side wall 51.

[0048] As shown in Figs. 1 and 2, the rear shell 12 is hollow and internally provided with a baffle 6 extending along the length direction thereof and separating the inner cavity of the rear shell 12 into an upper cavity 62 and a lower cavity 61. The end of the air duct pipe 3 is aligned with the lower cavity 61 and supplies air to the lower cavity 61 so that the lower cavity 61 forms a rear air duct for guiding air to the rear side of the neck. No air enters the upper cavity 62. The lower side of the rear shell 12 is provided with a rear air outlet 24 communicating with the lower cavity 61. The plate body of the baffle 6 is arranged to be bent to the side of the lower cavity 61, so that the aperture of the end of the lower cavity 61 along the air flow direction is smaller than the aperture of the beginning of the lower cavity 61 along the air flow direction. Figure 2 and Figure 4 As shown in Figs. 1 and 2, the rear shell 12 is hollow and internally provided with a baffle 6 extending along the length direction thereof and separating the inner cavity of the rear shell 12 into an upper cavity 62 and a lower cavity 61. The end of the air duct pipe 3 is aligned with the lower cavity 61 and supplies air to the lower cavity 61 so that the lower cavity 61 forms a rear air duct for guiding air to the rear side of the neck. No air enters the upper cavity 62. The lower side of the rear shell 12 is provided with a rear air outlet 24 communicating with the lower cavity 61. The plate body of the baffle 6 is arranged to be bent to the side of the lower cavity 61, so that the aperture of the end of the lower cavity 61 along the air flow direction is smaller than the aperture of the beginning of the lower cavity 61 along the air flow direction.

Claims

1. A multi-directional blowing hanging neck fan, characterized in that, The application relates to a neck-wearing frame, a fan, an air duct, an upper branch flow pipe and a side branch flow pipe. The neck-wearing frame is provided with air inlets at both ends. The fan is arranged in the neck-wearing frame and located at the air inlets. The air duct is arranged in the neck-wearing frame and extends along the length direction of the neck-wearing frame. The air duct is communicated with the fan and used for guiding the air flow generated by the fan. The air duct is provided with a lower air outlet for guiding the air flow downward. The upper branch flow pipe is arranged in the neck-wearing frame and located at the upper side of the air duct.

2. The multi-orientation blowing hanging neck fan of claim 1, characterized in that: The upper branch flow pipe is communicated with the air duct.

3. The multi-angle blowing hanging neck fan according to claim 2, characterized in that: The upper branch flow pipe is provided with an upper air outlet for guiding the air upward.

4. The multi-orientation blowing hanging neck fan of claim 1, wherein: The side branch flow pipe is arranged in the neck-wearing frame and located at the inner side of the air duct.

5. The multi-orientation blowing hanging neck fan according to claim 4, characterized in that: The side branch flow pipe is communicated with the air duct.

6. The multi-orientation blowing hanging neck fan according to claim 5, characterized in that: The side branch flow pipe is provided with a side air outlet for guiding the air flow to the inner side.

7. The multi-orientation blowing hanging neck fan according to claim 3, characterized in that: The lower side of the shell of the neck-wearing frame is provided with a lower air outlet corresponding to the lower air outlet.

8. The multi-orientation blowing hanging neck fan according to claim 7, characterized in that: The upper side of the shell of the neck-wearing frame is provided with an upper air outlet corresponding to the upper air outlet.

9. The multi-angle blowing hanging neck fan according to any one of claims 1-8, characterized in that: The inner side of the shell of the neck-wearing frame is provided with a side air outlet corresponding to the side air outlet.

10. The multi-orientation blowing hanging neck fan according to claim 9, characterized in that: The inner diameter of the air duct gradually decreases along the air flow direction. The air duct comprises a lower side wall and an upper side wall arranged at the upper and lower sides of the air duct respectively. The lower side wall is arranged in parallel to the inner wall of the neck-wearing frame. The upper side wall is arranged in an inclined manner to the inner wall of the neck-wearing frame. The distance between the upper side wall and the lower side wall gradually decreases along the air flow direction in the air duct. The upper branch flow pipe and the side branch flow pipe are arranged at the end of the air duct close to the fan. The inner diameter of the upper branch flow pipe and the side branch flow pipe gradually increases along the air flow direction. The upper branch flow pipe and the side branch flow pipe are respectively provided with a rear side wall of the upper branch flow pipe and a rear side wall of the side branch flow pipe which are arranged away from the side of the fan. The rear side wall of the upper branch flow pipe and the rear side wall of the side branch flow pipe extend to the end side of the air duct so that the inner diameter of the upper branch flow pipe and the side branch flow pipe gradually increases along the air flow direction. The rear side wall of the side branch flow pipe is provided with a wind guide protrusion extending to the inside of the air duct. The wind guide protrusion extends along the extension direction of the rear side wall of the side branch flow pipe and is smoothly connected with the rear side wall. The neck-wearing frame comprises side shells constituting the left and right sections of the neck-wearing frame and a rear shell constituting the rear section of the neck-wearing frame. The air duct is fixed in the side shells. The rear shell is rotationally connected with the two side shells. The rear shell is hollow and provided with a baffle extending along the length direction of the rear shell and separating the inner cavity of the rear shell into an upper cavity and a lower cavity. The end of the air duct is aligned with the lower cavity and supplies air to the lower cavity. The rear shell is provided with a rear air outlet communicated with the lower cavity. The inner diameter of the end of the lower cavity along the air flow direction is smaller than the inner diameter of the start end of the lower cavity along the air flow direction.

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