Neck-hanging fan capable of dissipating heat from neck

Abstract

The utility model discloses a neck heat dissipation neck hanging fan which comprises a support capable of being worn on the neck of a human body, the support is provided with a shell located on the two sides of the neck of the human body, an air channel and a fan assembly are arranged in the shell, an air inlet and an air outlet which are communicated with the air channel are formed in the shell, and the fan assembly is arranged between the air channel and the air inlet. A groove is formed in the side, facing the neck of the human body, of the shell, the groove is sunken in the direction away from the neck of the human body, the groove extends in the length direction of the shell, the air outlet is formed in the groove, an air circulation gap is formed between the groove and the neck of the human body during wearing, the heat dissipation efficiency of the neck of the human body can be improved, and the air blowing effect is better.

Description

Technical Field

[0001] This utility model relates to the field of neck-hanging fan technology, specifically to a neck-hanging fan for heat dissipation. Background Technology

[0002] A neck fan is a wearable device that blows air around a user's neck. It moves with the user and frees up the user's hands, cooling the face and neck by blowing air onto them.

[0003] Neckband fans typically consist of a wearable neck support with shells on either side of the neck. Inside the shells are air ducts and a fan assembly, while outside are air inlets and outlets. The fan assembly draws in outside air through the inlets, delivers it to the air ducts, and then blows it out through the outlets. However, traditional neckband fans are inefficient at dissipating heat from the neck and provide poor airflow when worn. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a neck-mounted cooling fan that improves the heat dissipation efficiency of the neck and provides a better airflow effect.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A neck cooling fan includes a support that can be worn on the neck. The support has a shell located on both sides of the neck. The shell has an air duct and a fan assembly inside. The shell has an air inlet and an air outlet communicating with the air duct. The fan assembly is located between the air duct and the air inlet. The shell has a groove on the side facing the neck. The groove is recessed away from the neck and extends along the length of the shell. The air outlet is located in the groove. When worn, an air flow gap is formed between the groove and the neck.

[0007] By setting a groove on the side of the shell facing the human neck, and the groove being recessed away from the human neck, the air outlet is located in the groove. When worn, an air flow gap is formed between the groove and the human neck. The air blown out of the air outlet enters the air flow gap and flows along the air flow gap, thereby better driving the air flow around the human neck, resulting in higher heat dissipation efficiency and better blowing effect.

[0008] As a preferred embodiment, a trumpet-shaped air-gathering cavity is provided between the air duct and the fan assembly, with the larger end of the air-gathering cavity close to the fan assembly and the smaller end of the air-gathering cavity connected to the inlet of the air duct.

[0009] The shell is provided with at least one partition plate, and the partition plate and the inner wall of the shell form the air duct.

[0010] As a preferred solution, the shell is provided with a plurality of partition plates, the plurality of partition plates include a first partition plate, a second partition plate and a third partition plate, the second partition plate and the third partition plate are spaced apart, the first partition plate, the second partition plate, the third partition plate and the inner wall of the shell form the air duct, the distance between the second partition plate and the third partition plate is b1, the distance between the first partition plate and the inner wall of the shell close to the air outlet is b2, and b1 is greater than b2.

[0011] As a preferred solution, 8mm≤b1≤30mm.

[0012] As a preferred solution, 1mm≤b2≤7mm.

[0013] As a preferred solution, the air duct is provided with at least one air baffle, the air baffle divides the air duct into at least two sub-air ducts, and the air outlet is provided with at least two air outlets, each air outlet is communicated with a corresponding sub-air duct.

[0014] As a preferred solution, the sub-air duct is provided with a baffle at the entrance of the sub-air duct, and the baffle limits the reverse flow of air in the sub-air duct.

[0015] As a preferred solution, the baffle is connected with the air baffle, the baffle is inclined to extend into the sub-air duct along the flow direction of the air, and the included angle β between the baffle and the air baffle is an acute angle.

[0016] As a preferred solution, the recess is provided with an arc surface away from the neck of the human body, the arc surface protrudes away from the neck of the human body, the air outlet is arranged on the arc surface, and the arc surface and the neck of the human body form the air flow gap.

[0017] As a preferred solution, the air outlet is a long strip-shaped air outlet, and the long strip-shaped air outlet extends along the length direction of the shell.

[0018] Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically, the recess is provided on the side of the shell facing the neck of the human body, the recess is recessed away from the neck of the human body, the recess extends along the length direction of the shell, the air outlet is arranged in the recess, when wearing, the air flow gap is formed between the recess and the neck of the human body, the air blown out by the air outlet enters the air flow gap and flows along the air flow gap, so that the air flow around the neck of the human body is better driven, the heat dissipation efficiency of the neck of the human body is higher, and the blowing effect is better.

[0019] In order to more clearly set forth the structural features, technical means and the specific purposes and functions reached by the present application, the present application will be further described in detail below in conjunction with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the assembly structure schematic diagram of the embodiment of the present application;

[0021] Figure 2 is the top view of the embodiment of the present application;

[0022] Figure 3 is Figure 2 the cross-sectional schematic diagram of A-A in figure;

[0023] Figure 4 is the exploded schematic diagram of the embodiment of the present application;

[0024] Figure 5 is the exploded view of the inner shell and the first partition plate of the embodiment of the present application;

[0025] Figure 6 is the air duct structure schematic diagram of the embodiment of the present application;

[0026] Figure 7 is Figure 6 the local enlarged schematic diagram of B part in figure;

[0027] Figure 8 is the cross-sectional schematic diagram of the embodiment of the present application.

[0028] EXPLANATION OF THE DRAWINGS:

[0029] 10 - support, 101 - shell, 102 - inner shell, 103 - outer shell, 11 - air duct, 111 - sub air duct, 112 - inlet, 12 - fan assembly, 121 - air duct, 122 - impeller, 13 - air inlet, 131 - air inlet mesh, 14 - air outlet, 15 - groove, 151 - arc surface, 16 - extension end, 17 - air inlet mesh cover, 30 - air gathering cavity, 20 - first partition plate, 21 - second partition plate, 22 - third partition plate, 23 - air guide plate, 24 - baffle. DETAILED DESCRIPTION

[0030] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the present application.

[0031] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, term '' install '' '' link '' '' connect '' should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through intermediate medium, can be two element internal intercommunication. For ordinary skilled person in the art, the above-mentioned term can be understood as the specific meaning in the utility model according to specific circumstances.

[0032] As Figures 1-8 The utility model discloses a neck radiating neck fan, including the support 10 that can be worn on the human neck, the support 10 has the shell 101 located human neck both sides, the shell 101 is equipped with air duct 11 and fan assembly, the shell 101 is equipped with the air inlet 13 and the air outlet 14 with air duct 11 intercommunication, the fan assembly is located between air duct 11 and air inlet 13.

[0033] The side of shell 101 towards human neck is equipped with recess 15, the recess 15 recesses away from human neck's direction, the recess 15 extends along the length direction of shell 101, the air outlet 14 is located in recess 15, when wearing, the recess 15 and human neck form air flow gap (not shown) between.

[0034] The side of recess 15 away from human neck is equipped with arc face 151, the arc face 151 protrudes away from human neck's direction, the air outlet 14 is located on arc face 151, the arc face 151 and human neck form the air flow gap between, when the air in the air flow gap gathers to a certain degree, part of the air in the air flow gap will flow in the up-down direction, and the air flowing in the up-down direction blows to the human neck after being guided by the arc face 151, so that the heat dissipation effect of the human neck is better.

[0035] The air duct 11 and fan assembly are equipped with horn-shaped wind collecting cavity 30, the larger end of wind collecting cavity 30 is close to fan assembly, and the smaller end of wind collecting cavity 30 is in intercommunication with the inlet 112 of air duct 11, by setting horn-shaped wind collecting cavity 30, the pressure of air increases when flowing through wind collecting cavity 30, so that the flowing speed of air is faster after entering air duct 11, thereby improving the air outlet speed of air outlet 14, and the blowing effect is better.

[0036] The shell 101 is provided with at least one partition plate, the partition plate and the inner wall of the shell 101 form the air duct 11, the partition plate is provided with a plurality of partition plates, the plurality of partition plates include a first partition plate 20, a second partition plate 21 and a third partition plate 22, the second partition plate 21 and the third partition plate 22 are spaced apart, the first partition plate 20, the second partition plate 21, the third partition plate 22 and the inner wall of the shell 101 form the air duct 11, the distance between the second partition plate 21 and the third partition plate 22 is b1, the distance between the first partition plate 20 and the inner wall of the shell 101 close to the air outlet 14 is b2, and b1 is greater than b2; by setting b1 greater than b2, the air duct 11 is in a flat structure, the air pressure in the air duct 11 can be increased, the air speed of the air outlet 1414 is larger, and the blowing effect is better. The flat air duct 11 is used in cooperation with the horn-shaped air collecting cavity 30, and the air flow speed in the air duct 11 is higher.

[0037] Specifically, 8mm≤b1≤30mm, 1mm≤b2≤7mm.

[0038] The air duct 11 is provided with at least one air baffle 23, the air baffle 23 divides the air duct 11 into at least two sub-air ducts 111, the air outlet 14 is provided with at least two, each air outlet 14 is communicated with the corresponding sub-air duct 111, and the number of air baffles 23 is two, the air duct 11 is divided into three sub-air ducts 111 by the two air baffles 23; by setting the air baffle 23, the air baffle 23 divides the air duct 11 into a plurality of sub-air ducts 111, and a plurality of air outlets 14 are arranged, the air outlet 14 is communicated with the corresponding sub-air duct 111, the air in each sub-air duct 111 is blown out from the corresponding air outlet 14, the air outlet is large, and the air outlet is uniform.

[0039] The air baffle 24 is arranged at the inlet 112 of the sub-air duct 111, the air baffle 24 limits the air reverse flow in the sub-air duct 111, and the air reverse flow is defined as the air flow direction of the air duct 11; by arranging the air baffle 24 in the sub-air duct 111, the air baffle 24 limits the air reverse flow in the sub-air duct 111, the air pressure in the sub-air duct 111 is increased, and the air outlet of the air outlet 14 is improved.

[0040] The air baffle 24 is connected with the air baffle 23, the air baffle 24 is inclined to extend into the sub-air duct 111 along the flow direction of the air, the included angle β between the air baffle 24 and the air baffle 23 is an acute angle, the included angle β is ≤60°, and specifically, each air baffle 23 is connected with two air baffles 24; the air baffle 24 is inclined to extend into the sub-air duct 111, the included angle between the air baffle 24 and the air baffle 23 is an acute angle, the air baffle 24 can limit the air reverse flow in the sub-air duct 111, and is helpful to the forward flow of the air into the sub-air duct 111.

[0041] One side of the baffle 24 extends to the inner wall of the shell 101, and the other side of the baffle 24 abuts against the first partition plate 20; by arranging that one side of the baffle 24 extends to the inner wall of the shell 101 and the other side of the baffle 24 abuts against the first partition plate 20, the sealing between the partition plate, the baffle 24 and the shell 101 is maintained, and the air backflow prevention effect is better.

[0042] The first partition plate 20 extends in an arc shape along the extension direction of the shell 101, and the first partition plate 20 is detachably connected with the shell 101; by adopting detachable connection, the first partition plate 20 and the shell 101 are conveniently formed and manufactured separately, and production is facilitated.

[0043] The shell 101 has an inner shell 102 and an outer shell 103, the recess 15 is arranged on the inner shell 102, the air outlet 14 extends along the length direction of the shell 101, the first partition plate 20 is detachably connected with the inner shell 102, and the second partition plate 21, the third partition plate 22 and the inner shell 102 are integrally formed.

[0044] The air outlet 14 is a long strip-shaped air outlet 14, the long strip-shaped air outlet 14 extends along the length direction of the shell 101, or the air outlet 14 can also be a plurality of small holes arranged in a row along the length direction of the shell 101.

[0045] The extension end 16 of the shell 101 is provided with an air inlet mesh cover 17, and the air inlet 13 is a plurality of air inlet mesh holes 131 distributed on the outer surface of the air inlet mesh cover 17.

[0046] The fan assembly has a wind guide cylinder 121, an impeller 122 and a high-speed motor (not shown) for driving the impeller 122 to rotate, the impeller 122 is arranged in the wind guide cylinder 121, the high-speed motor drives the impeller 122 to rotate, and the rotating speed of the high-speed motor is more than 6000 revolutions per minute; by adopting the high-speed motor, the air inlet amount can be improved, and the blowing effect is further improved.

[0047] The working principle of the utility model is as follows: starting the high-speed motor, the high-speed motor drives the impeller 122 to rotate, external air successively passes through the air inlet 13, the wind guide cylinder 121, the air collecting cavity 30 and the air duct 11, and is finally blown out from the air outlet 14.

[0048] In summary, the utility model discloses a recess 15 is arranged on the side of the shell 101 facing the human neck, the recess 15 is recessed away from the human neck, the recess 15 extends along the length direction of the shell 101, the air outlet 14 is arranged in the recess 15, when wearing, the recess 15 and the human neck form an air flow gap, the air blown out by the air outlet 14 enters the air flow gap and flows along the air flow gap, so that the air flow around the human neck is better driven, the heat dissipation efficiency of the human neck is higher, and the blowing effect is better.

[0049] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and thus any modification, equivalent replacement, improvement, etc. made to the above embodiments according to the technical spirit of the present application still falls within the scope of the technical scheme of the present application.

Claims

1. A neck cooling fan, comprising a support that can be worn on the neck of a person, the support having a shell located on both sides of the neck, the shell having an air duct and a fan assembly inside, the shell having an air inlet and an air outlet communicating with the air duct, the fan assembly being disposed between the air duct and the air inlet, characterized in that: The shell has a groove on the side facing the human neck, the groove is recessed away from the human neck, the groove extends along the length of the shell, and the air outlet is located in the groove. When worn, an air flow gap is formed between the groove and the human neck. The housing is provided with multiple partitions, including a first partition, a second partition, and a third partition. The second partition and the third partition are spaced apart. The first partition, the second partition, the third partition, and the inner wall of the housing form the air duct. The distance between the second partition and the third partition is b1, and the distance between the first partition and the inner wall of the housing near the air outlet is b2. The distance between b1 and b2 is greater than b2.

2. The neck cooling fan according to claim 1, characterized in that, A trumpet-shaped air-gathering cavity is provided between the air duct and the fan assembly. The larger end of the air-gathering cavity is close to the fan assembly, and the smaller end of the air-gathering cavity is connected to the inlet of the air duct.

3. The neck cooling fan according to claim 1, characterized in that, 8mm≤b1≤30mm.

4. The neck cooling fan according to claim 1, characterized in that, 1mm≤b2≤7mm.

5. The neck cooling fan according to claim 1, characterized in that, The air duct is provided with at least one air guide plate, which divides the air duct into at least two sub-air ducts. The air outlet is provided with at least two outlets, and each outlet is connected to the corresponding sub-air duct.

6. The neck cooling fan according to claim 5, characterized in that, A baffle is provided at the entrance of the sub-duct to restrict the backflow of air within the sub-duct.

7. The neck cooling fan according to claim 6, characterized in that, The baffle is connected to the air guide plate. The baffle extends into the sub-air duct at an angle along the direction of air flow. The included angle β between the baffle and the air guide plate is an acute angle.

8. The neck cooling fan according to claim 1, characterized in that, The groove has an arc-shaped surface on the side away from the human neck, the arc-shaped surface protrudes in the direction away from the human neck, the air outlet is located on the arc-shaped surface, and the air flow gap is formed between the arc-shaped surface and the human neck.

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