Neck fan

Abstract

The utility model discloses a kind of neck-hung fans, including shell, accommodating cavity is equipped in shell, fan is equipped in accommodating cavity;Shell has shell inside;Skin protrusion is formed with on shell inside outward bulge;Air inlet and air outlet are equipped on shell, air inlet is communicated with the fan air inlet side of fan;Air outlet is located in skin protrusion, at least part air outlet is located on the circumferential side of skin protrusion;Air duct structure is equipped in shell, air duct structure is communicated fan air outlet side of fan and air outlet.By setting skin protrusion on shell inside, air outlet is located on skin protrusion, the distance of air outlet and skin can be significantly shortened, ensure that airflow more directly, efficiently blow to neck skin, can reduce airflow in transmission process by external environment interference, reduce air volume dispersion and energy loss, to greatly improve cooling effect, and also by at least part air outlet setting on the circumferential side of skin protrusion, these air outlets can not be easily blocked by skin or clothing, guarantee air outlet effect.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and in particular to a neck-hanging fan. Background Technology

[0002] With the widespread use of portable cooling devices, neck fans have become a mainstream cooling product in summer due to their hands-free feature. Among them, the top-and-bottom airflow neck fan is the most common type on the market due to its simple structure and ease of use. This type of product uses the design of top and bottom airflow to achieve targeted cooling of the neck skin, providing users with a cool experience. However, there are still significant shortcomings in the existing technology that limit the improvement of its cooling effect.

[0003] Specifically, current neck fans with top and bottom airflow have their air outlets located on the top and bottom sides of the casing. This design results in a significant gap between the air outlet and the skin, making the airflow susceptible to interference from the external environment during transmission, leading to airflow dispersion and energy loss. Especially in high-temperature environments, the long-distance airflow is difficult to effectively cover the neck skin, resulting in low cooling efficiency and a poor perceived cooling effect for the user. Utility Model Content

[0004] In view of this, the present invention provides a neck fan that solves the problem that the air outlet of the existing neck fan is set on the upper and lower sides of the shell along the vertical direction, resulting in a large gap between the air outlet and the skin. The airflow is easily affected by the external environment during transmission, causing air volume dispersion and energy loss.

[0005] This application provides a neck fan, including a housing having a length direction and a thickness direction, a receiving cavity inside the housing, and a fan disposed within the receiving cavity; the housing has an inner side located on one side of the housing along the thickness direction, and the housing is bent along the length direction to form a wearing space on the side where the inner side is located; a skin-contact protrusion is formed on the upper part of the inner side of the housing; the housing has an air inlet and an air outlet, the air inlet communicating with the air inlet side of the fan; the air outlet is disposed on the skin-contact protrusion, at least a portion of the air outlet being located on the peripheral side of the skin-contact protrusion; the housing has an air duct structure inside, the air duct structure communicating with the air outlet side of the fan and the air outlet.

[0006] In one embodiment of this application, the housing has a width direction perpendicular to the length direction and the thickness direction, and the air outlet includes a first air outlet and a second air outlet, the first air outlet and the second air outlet being located on opposite sides of the skin-contact protrusion along the width direction.

[0007] In one embodiment of this application, the number of the first air outlet and the second air outlet are both even numbers. The first air outlet is divided into two groups, and the two groups of air outlets are symmetrically arranged along the length direction. The second air outlet is also divided into two groups, and the two groups of air outlets are symmetrically arranged along the length direction.

[0008] In one embodiment of this application, both the first air outlet and the second air outlet are elongated holes extending circumferentially along the skin-contact protrusion.

[0009] In one embodiment of this application, the air outlet includes an inner air outlet, which is located on the side of the skin-contact protrusion facing the wearing space.

[0010] In one embodiment of this application, the number of internal air outlets is an even number, and the internal air outlets are divided into two groups, with the two groups of internal air outlets symmetrically arranged along the length direction.

[0011] In one embodiment of this application, the housing has a width direction perpendicular to the length direction and the thickness direction, and the inner air outlet is elongated and extends along the width direction.

[0012] In one embodiment of this application, the air inlet includes an inner air inlet, which is disposed on the skin-contact protrusion.

[0013] In one embodiment of this application, the inner air inlet includes a first inner air inlet, which is located on the side of the skin-contact protrusion facing the wearing space.

[0014] In one embodiment of this application, the inner air inlet includes a second inner air inlet, which is disposed on the peripheral side of the skin-contact protrusion.

[0015] In one embodiment of this application, the inner air inlet includes a first inner air inlet and a second inner air inlet. The first inner air inlet is located on the side of the skin-contact protrusion facing the wearing space; the second inner air inlet is located on the peripheral side of the skin-contact protrusion.

[0016] In one embodiment of this application, the first inner air inlet is disposed at the end of the skin-contact protrusion along the length direction, and the second inner air inlet is arranged around the periphery of the first inner air inlet.

[0017] Compared with the prior art, the neck fan provided by this utility model has at least the following beneficial effects: The neck fan provided by this utility model has a skin-friendly protrusion on the inner side of the shell, and the air outlet for blowing air is located on the skin-friendly protrusion. This can significantly shorten the distance between the air outlet and the skin, ensuring that the airflow blows more directly and efficiently onto the neck skin. It can reduce the interference of the external environment during the airflow transmission process, reduce air volume dispersion and energy loss, thereby greatly improving the cooling effect. Moreover, by setting at least some of the air outlets on the peripheral side of the skin-friendly protrusion, these air outlets are not easily blocked by skin or clothing, ensuring the airflow effect. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of a neck fan provided in an embodiment of this application; Figure 2 for Figure 1 A three-dimensional structural diagram of the neck fan from another angle; Figure 3 for Figure 1 The exploded view of the neck fan shown. Figure 4 A three-dimensional structural schematic diagram of the housing provided in an embodiment of this application; Figure 5 Rear view of the first shell provided for an embodiment of this application; Figure 6 An enlarged schematic diagram of the first housing portion where the first partition is located, as provided in an embodiment of this application; Figure 7 This is a schematic diagram of the three-dimensional structure after removing the second shell, provided in an embodiment of this application. Figure 8 This is a three-dimensional structural diagram of the mounting bracket provided in an embodiment of this application.

[0019] In the picture: 10. Shell; 101. Inner side of shell; 102. Outer side of shell; 20. First shell; 21. Skin-fitting protrusion; 221. Inner air outlet; 222. First air outlet; 223. Second air outlet; 224. First inner air inlet; 225. Second inner air inlet; 226. Heat dissipation air outlet; 227. Shell perforation; 23. First airflow channel; 24. Second airflow channel; 241. First airflow segment; 242. Second airflow segment; 251. First baffle sidewall; 252. Second baffle sidewall; 26. Shell guide plate; 27. 28. Outer baffle; 291. Inner wall structure; 292. First partition; 293. Second partition; 294. Diversion guide plate; 30. Second shell; 31. External air inlet; 40. Fan; 50. Mounting bracket; 51. First mounting part; 52. Fan outlet; 53. Mounting plate; 54. Sealing plate; 541. Plate perforation; 55. First cooling baffle; 56. Second cooling baffle; 57. Cooling diversion guide plate; 60. Cooling structure; 61. Radiator; 62. Cooling element; 63. Cooling fin; 631. Cooling protrusion. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, inside, outside, top, bottom, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship between the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] It should also be noted that when a component is referred to as "fixed to" or "set on" another component, the component may be directly on the other component or there may be an intervening component present. When a component is referred to as "connected to" another component, it may be directly connected to the other component or there may be an intervening component present.

[0023] Please see Figures 1 to 8 This embodiment of the present invention provides a neck fan, comprising a housing 10 and a fan 40 disposed within the housing 10. The fan 40 is used to drive outside air to form a breeze that blows towards the user's neck, thereby achieving cooling.

[0024] like Figure 1 , Figure 2 and Figure 3As shown, the housing 10 has a length direction and a thickness direction. The housing 10 has an inner side 101 and an outer side 102, and the housing 10 has a cavity for housing the fan 40. The inner side 101 and the outer side 102 are arranged opposite each other along the thickness direction of the housing 10. The housing 10 is bent along the length direction and forms a wearing space on the side where the inner side 101 is located. The wearing space is used to accommodate the user's neck. A skin-fitting protrusion 21 is formed on the inner side 101. The housing 10 has an air inlet and an air outlet. The air inlet is provided corresponding to the fan 40 and is connected to the fan inlet side of the fan 40, so that the fan 40 drives the air outside the housing 10 to enter the housing 10 through the air inlet; the air outlet is provided on the skin-contact protrusion 21, and at least part of the air outlet is provided on the peripheral side of the skin-contact protrusion 21; the housing 10 is provided with an air duct structure, which connects the fan outlet side 52 of the fan 40 and each air outlet, and is used to guide the air entering the housing 10 to each air outlet, and the air then blows towards the user's neck through each air outlet.

[0025] Thus, by providing a skin-friendly protrusion 21 on the inner side 101 of the shell, and placing the air outlet for blowing air on the skin-friendly protrusion 21, the distance between the air outlet and the skin can be significantly shortened, ensuring that the airflow blows more directly and efficiently onto the neck skin. This reduces the interference of the external environment during airflow transmission, reduces air volume dispersion and energy loss, thereby greatly improving the cooling effect. Moreover, by placing at least some of the air outlets on the peripheral side of the skin-friendly protrusion 21, these air outlets are less likely to be blocked by skin or clothing, ensuring the airflow effect.

[0026] In some embodiments of this application, the housing 10 is generally in an arc shape that matches the neck. For example... Figure 3 As shown, the housing 10 includes a first housing 20 and a second housing 30; the first housing 20 and the second housing 30 are connected and arranged opposite each other along the thickness direction of the housing 10, forming a receiving cavity. The side of the first housing 20 facing away from the second housing 30 is the inner side 101, therefore the skin-contact protrusion 21 and all the air outlets are located on the first housing 20; as Figure 5 As shown, the first shell 20 has a first stop sidewall 251 and a second stop sidewall 252 that are disposed opposite to each other; the first stop sidewall 251 and the second stop sidewall 252 are disposed opposite to each other along the width direction of the first shell 20.

[0027] like Figure 4 As shown, the peripheral side of the skin-contact protrusion 21 is inclined relative to the inner side 101 of the shell, and the protrusion 21 gradually decreases in size from the outer side 102 of the shell to the inner side 101 of the shell. This arrangement increases the air outlet area of ​​the air outlet on the peripheral side of the skin-contact protrusion 21, and also allows part of the air outlet on the peripheral side of the skin-contact protrusion 21 to be directed towards the upper or lower part of the user's neck, while the other part is directed inward towards the user's skin.

[0028] In some embodiments of this application, such as Figure 4 As shown, the housing 10 has a width direction perpendicular to the length direction and the thickness direction. The air outlet includes a first air outlet 222 and a second air outlet 223. The first air outlet 222 and the second air outlet 223 are arranged on both sides of the skin-contact protrusion 21 along the width direction of the housing 10. This arrangement forms a vertical air supply channel by staggering the first air outlet and the second air outlet vertically: the first air outlet 222 is responsible for supplying air to the upper part of the user's neck, which is described below as upward air supply or upward blowing; the second air outlet 223 is responsible for supplying air to the lower part of the user's neck, which is described below as downward air supply or downward blowing. At the same time, the physical barrier of the skin-contact protrusion 21 effectively avoids direct obstruction of the air outlet by the skin or clothing, ensuring stable transmission of airflow from the upper and lower parts of the body.

[0029] Optionally, both the first air outlet 222 and the second air outlet 223 are elongated holes extending circumferentially along the skin-contact protrusion 21. This arrangement can expand the air outlet coverage of the first air outlet 222 and the second air outlet 223, allowing the airflow to spread more widely to the surrounding area.

[0030] Furthermore, the number of first air outlets 222 and second air outlets 223 is even, and each of the first air outlets 222 and second air outlets 223 is divided into two groups. Both groups of first air outlets 222 and two groups of second air outlets 223 are symmetrically arranged along the length of the housing 10. This arrangement increases the airflow range and enhances the aesthetics of the neck fan 40. For example, there can be two first air outlets 222 and two second air outlets 223, symmetrically arranged along the length of the housing 10.

[0031] Optionally, the air outlet also includes an inner air outlet 221, which is located on the side of the skin-contact protrusion 21 facing the wearing space, to achieve inward airflow. This configuration allows the neck fan 40 to not only achieve vertical airflow but also inward airflow, greatly increasing the airflow range.

[0032] Furthermore, the number of internal air outlets 221 is even, and each internal air outlet 221 is divided into two groups, with the two groups of internal air outlets 221 symmetrically arranged along the length of the housing 10. This arrangement also increases the airflow range and enhances the aesthetics of the neck fan 40.

[0033] Furthermore, the internal air outlet 221 is an elongated hole extending along the width of the housing 10, thereby covering a larger area in the neck height direction.

[0034] In some feasible embodiments of this application, such as Figure 1 and Figure 3As shown, the air inlet has an external air inlet 31, which is located on the outer side 102 of the shell, specifically on the side of the second shell 30 facing away from the first shell 20.

[0035] There is at least one external air inlet 31, which may be round, square, or other shapes. For example, Figure 1 As shown, there is one external air inlet, which is arranged in a circle.

[0036] Optionally, the air inlet may also have an inner air inlet, which is located on the skin-contact protrusion 21. This design shortens the distance between the inner air inlet and the skin, allowing the inner air inlet to quickly remove heat from the skin through airflow, achieving a better cooling effect.

[0037] In one specific embodiment, such as Figure 3 and Figure 4 As shown, the inner air inlet has a first inner air inlet 224 and a second inner air inlet 225. The first inner air inlet 224 is located on the side of the skin-contact protrusion 21 facing the wearing space, and the second inner air inlet 225 is located on the peripheral side of the skin-contact protrusion 21. This arrangement helps to increase the air intake area of ​​the inner air inlet. In other feasible embodiments, the inner air inlet can be configured to include only the first inner air inlet 224 located on the side of the skin-contact protrusion 21 facing the wearing space, or it can be configured to include only the second inner air inlet 225 located on the peripheral side of the skin-contact protrusion 21.

[0038] Optional, such as Figure 4 As shown, the first inner air inlet 224 is located at the end of the skin-contact protrusion 21 along the length of the housing 10, and the second inner air inlet 225 is arranged around the periphery of the first inner air inlet 224. This arrangement not only ensures concentrated airflow and improves cooling efficiency, but also enhances the overall aesthetics of the neck fan 40, making the neck fan 40 achieve better results in both function and appearance.

[0039] Furthermore, the number of the first internal air inlet 224 and the second internal air inlet 225 is even, and each of the first internal air inlet 224 and the second internal air inlet 225 is divided into two groups. The two groups of first internal air inlets 224 and the two groups of second internal air inlets 225 are symmetrically arranged along the length of the housing 10. The symmetrical arrangement further enhances the aesthetics of the neck fan 40.

[0040] Each group has several first internal air inlets 224, which are evenly distributed on the side of the skin-contact protrusion 21 facing the wearing space. This arrangement ensures that the first internal air inlets 224 do not cause discomfort to the skin, while increasing the uniformity of airflow into the housing 10.

[0041] The number of second internal air inlets 225 in each group can be one, two, three, four, etc., for example, such as Figure 4As shown, there are three second internal air inlets 225. One second internal air inlet 225 is located on one side of the corresponding first internal air inlet 224 along the length of the housing 10, and the other two second internal air inlets 225 are located on both sides of the corresponding first internal air inlet 224 along the width of the housing 10.

[0042] In some feasible embodiments of this application, such as Figure 5 As shown, the air duct structure has a first air intake channel 23 and a second air intake channel 24, both of which are connected to the fan outlet side 52 of the fan 40; the first air intake channel 23 passes through and connects to the first air outlet 222 in sequence; the second air intake channel 24 passes through and connects to the inner air outlet 221 and the second air outlet 223 in sequence.

[0043] The first air outlet 222 is designed to blow air downwards, and the second air outlet 223 is designed to blow air upwards. After the fan 40 is working, the outside air is driven by the fan 40 to form wind, which enters the housing 10 from the air inlet, and then enters the first air intake channel 23 and the second air intake channel 24 from the fan outlet side 52. The air entering the first air intake channel 23 is guided by the first air intake channel 23 and passes through the first air outlet 222, and is blown upwards through the first air outlet 222. The air entering the second air intake channel 24 is guided by the second air intake channel 24 and flows through each inner air outlet 221 and each second air outlet 223, and is blown inwards and downwards through the inner air outlet 221 and the second air outlet 223, respectively, thereby realizing airflow from both upwards and downwards and airflow from inwards.

[0044] Optionally, the first airflow channel 23 extends along the length of the housing 10; the second airflow channel 24 has a first airflow section 241 passing through the inner air outlet 221 and a second airflow section 242 passing through the second air outlet 223. The first airflow section 241 extends along the width of the housing 10, and the second airflow section 242 extends along the length of the housing 10. This arrangement allows for a relatively short length of the first airflow channel 23 and the second airflow channel 24, effectively reducing wind resistance loss caused by the meandering path during airflow, thereby improving airflow efficiency.

[0045] Optionally, a shell guide plate 26 is provided inside the housing 10. The shell guide plate 26 is located between the first air intake channel 23 and the second air intake channel 24. The shell guide plate 26 is used to divert the air generated by the fan 40 into the first air intake channel 23 and the second air intake channel 24. Preferably, the end of the shell guide plate 26 near the fan 40 extends into the fan outlet side 52 to reduce air loss. Specifically, the shell guide plate 26 is disposed inside the first housing 20 and extends along the length direction of the housing 10; the first air intake channel 23 is formed between the first baffle side wall 251 and the shell guide plate 26.

[0046] Optionally, the housing 10 also includes an outer baffle 27 and an inner enclosure wall structure 28. The outer baffle 27 is located between the fan 40 and the inner enclosure wall structure 28, and between the second baffle sidewall 252 and the housing guide plate 26. The outer baffle 27 and the second baffle sidewall 252 form an outer wall structure, which is located around the inner enclosure wall structure 28. The second drainage channel 24 is formed between the outer wall structure and the inner enclosure wall structure 28. Both the outer baffle 27 and the inner enclosure wall structure 28 are located on the first housing 20.

[0047] Furthermore, the outer baffle 27 and the inner enclosure structure 28 are both connected to the shell guide plate 26 at the ends near the fan outlet side 52. This arrangement increases the strength of the shell guide plate 26.

[0048] The first air intake channel 23 and the second air intake channel 24 are each configured in a one-to-one correspondence with the fan 40. Therefore, when there is one fan 40, there is also one first air intake channel 23 and one second air intake channel 24. When there are two fans 40, there are also two first air intake channels 23 and two second air intake channels 24. The number of the first air outlet 222, the second air outlet 223, the first internal air inlet 224, and the second internal air inlet 225 are also two sets. In a specific embodiment, as shown... Figure 3 and Figure 5 As shown, there are two fans 40, which are symmetrically arranged at both ends of the housing 10 along the length of the housing 10. There are also two first air intake channels 23 and two second air intake channels 24. The air intake ends of the two first air intake channels 23 are connected to the air outlet sides of the two fans 40 respectively; the air intake ends of the two second air intake channels 24 are connected to the air outlet sides of the two fans 40 respectively. There are two internal air outlets 221, two first air outlets 222, and two second air outlets 223. The two first air outlets 222 are set one-to-one with the two first air intake channels 23, so each first air intake channel 23 corresponds to one first air outlet 222. The two internal air outlets 221 and the two second air outlets 223 are set one-to-one with the second air intake channels 24, so each second air intake channel 24 corresponds to one internal air outlet 221 and one second air outlet 223. There are two external air inlets 31. The first internal air inlet 224 and the second internal air inlet 225 are each divided into two groups. The two external air inlets 31, the two groups of first internal air inlets 224 and the two groups of second internal air inlets 225 are all set one-to-one with the two fans 40, and are all connected to the fan air intake side of the two fans 40 respectively. Of course, in this application, the number of internal air outlet 221, first air outlet 222 and second air outlet 223 is not limited to two. In other feasible embodiments, the number of first air outlet 222 corresponding to each first drainage channel 23 can be two or more, and the number of internal air outlet 221 and second air outlet 223 corresponding to each second drainage channel 24 can also be two or more.

[0049] Furthermore, the two first drainage channels 23 together form the passage between the shell guide plate 26 and the first baffle sidewall 251, and are separated by the first partition 291. The two second drainage channels 24 together form the passage between the outer wall structure and the inner wall structure 28, and are separated by the second partition 292. This arrangement allows the two first drainage channels 23 to share a shell guide plate 26 and a first baffle sidewall 251, and also allows the two second drainage channels 24 to share an outer baffle 27 and an inner wall structure 28, which simplifies the structure and manufacturing process of the shell 10 and reduces manufacturing costs.

[0050] Furthermore, the number of first partitions 291 is two, such as... Figure 6 As shown, the two first partitions 291 are symmetrically arranged along the length of the housing 10 and are bent toward each other. This arrangement enables each first partition 291 and its corresponding first airflow channel 23 to form a guiding structure. When the wind hits the first partition 291, its direction is precisely turned toward the first air outlet 222, thereby effectively reducing airflow diffusion and significantly improving airflow efficiency.

[0051] In some feasible embodiments of this application, such as Figure 7 As shown, the fan 40 device also includes a mounting bracket 50. Both the first airflow channel 23 and the second airflow channel 24 are groove structures located within the first housing 20. The opening of the first airflow channel 23 is sealed by the second housing 30; the opening of the second airflow channel 24 is sealed by the mounting bracket 50. The mounting bracket 50 is spaced apart from the end of the outer baffle 27 near the housing guide plate 26, allowing airflow entering the housing guide plate 26 near the outer baffle 27 to pass through this gap into the second airflow channel 24. Setting the first airflow channel 23 and the second airflow channel 24 as groove structures facilitates the machining of the inner walls of the first airflow channel 23 and the second airflow channel 24, improving the machining accuracy of the first airflow channel 23 and the second airflow channel 24.

[0052] like Figure 7 and Figure 8As shown, the mounting bracket 50 includes a first mounting part 51, a second mounting part, and a cooling airflow structure. The first mounting part 51 and the second mounting part are connected by the cooling airflow structure, which covers the openings of the first airflow channel 23 and the second airflow channel 24. The neck fan also includes a cooling component. The cooling component and the fan 40 are respectively mounted on the first mounting part 51 and the second mounting part. The cooling component is located on the side of the shell guide plate 26 near the second air outlet 223. The cooling component includes a radiator 61, a cooling element 62, and a cooling fin 63 arranged sequentially along the direction from the outer side 102 of the shell to the inner side 101 of the shell. The radiator 61 is located inside the shell 10, the cooling fin 63 is attached to the skin-contact protrusion 21, and the cooling element 62 is located inside the shell 10 and is in contact with the radiator 61 and the cooling element 62, respectively. During operation, the cooling element 62 undergoes internal energy conversion. A portion of the cooling element 62 absorbs heat, generating a low-temperature effect, which is then conducted to the cooling plate 63, which in turn transfers the temperature to the skin, achieving localized cooling. Another portion of the cooling element 62 releases heat, creating a high-temperature area, which is then conducted to the radiator 61. The radiator 61 dissipates the heat to the external environment, ensuring the continuous and stable operation of the cooling assembly. A cooling airflow guiding structure is located between the fan 40 and the radiator 61, guiding the airflow entering the shell guide plate 26 near the second air outlet 223 to the radiator 61. The housing 10 has a heat dissipation vent 226 corresponding to the heat sink 61. The heat dissipation vent 226 is located on the side of the housing 10 away from the shell guide plate 26 along the width direction of the housing 10. This allows air to flow to the heat sink 61 under the guidance of the cooling airflow structure. The air passes through the heat sink 61, absorbs the heat from the heat sink 61, and then flows out of the housing 10 through the heat dissipation vent 226. In other feasible embodiments, the mounting bracket 50 may not have a first mounting part 51 and a second mounting part. The fan 40 and the cooling components may be directly mounted on the mounting structure provided on the first housing 20 or the second housing 30.

[0053] Specifically, the cooling drainage structure includes a sealing plate 54, a first cooling baffle 55, and a second cooling baffle 56. The sealing plate 54 is located on the same side of the inner wall structure 28 and the outer baffle 27, and covers the opening of the second drainage channel 24. The sealing plate 54 and the first cooling baffle 55 are both connected to the first mounting part 51 and the second mounting part. The first cooling baffle 55 is located on the side of the shell guide plate 26 near the heat dissipation outlet 226 and is opposite to the shell guide plate 26. The second cooling baffle 56 is located on the sealing plate 54 corresponding to the radiator 61 and is located on the side of the sealing plate 54 away from the second drainage channel 24. The sealing plate 54, the shell guide plate 26, the first cooling baffle 55, and the second cooling baffle 56 form a cooling drainage channel. The air inlet of the cooling drainage channel is connected to the fan outlet side 52, and the side of the cooling drainage channel away from the sealing plate 54 is covered by the second shell 30. Since the sealing plate 54 is located between the second air intake channel 24 and the cooling air intake channel, the sealing plate 54 can further divert the air entering the shell guide plate 26 near the outer baffle 27, so that the air enters the second air intake channel 24 and the cooling air intake channel respectively. The air entering the second air intake channel 24 is blown onto the skin through the inner air outlet 221 and the second air outlet 223 to cool the skin, while the air entering the cooling air intake channel flows to the cooling component to dissipate the high temperature heat generated by the cooling component when it is working.

[0054] Optionally, the first mounting portion 51 is cylindrical and extends along the thickness direction of the housing 10. The two ends of the cavity within the first mounting portion 51 are respectively connected to an external air inlet 31 and an internal air inlet, so that external airflow, driven by the fan 40, passes through the external air inlet 31 and the internal air inlet into the cavity of the first mounting portion 51. The first mounting portion 51 is provided with a fan outlet side 52 connecting the first airflow channel 23, the second airflow channel 24, and the cooling airflow channel. A notch is formed on the side wall of the cylindrical first mounting part 51; the second mounting part includes two mounting plates 53 disposed on the side of the sealing plate 54 facing away from the first drainage channel 23. The two mounting plates 53 are arranged opposite each other along the length direction of the housing 10, and a mounting cavity is formed between the mounting plates 53. The radiator 61 is installed in the mounting cavity and is detachably connected to the two mounting plates 53. The sealing plate 54 is provided with a plate through hole 541 corresponding to the radiator 61. The cooling element 62 passes through the plate through hole 541 and abuts against the radiator 61.

[0055] The first mounting part 51 and the fan 40 are arranged in a one-to-one correspondence. When there is one fan 40, there is also one first mounting part 51. When there are two fans 40, there are also two second mounting parts, which are symmetrically arranged along the length of the housing 10. When there are two fans 40 and two mounting parts, the mounting frame 50 can be an integral structure or a split structure. If it is a split structure, the mounting frame 50 is divided into two mounting frames along the middle part of the sealing plate 54.

[0056] Optional, such as Figure 7 As shown, the cooling flow structure also includes a cooling flow guide plate 57. The cooling flow guide plate 57 is located in the cooling flow channel and is positioned near the radiator 61. The cooling flow guide plate 57 can further divert the air in the cooling flow channel, making the air blow more evenly towards the radiator 61 and improving the cooling effect.

[0057] The cooling element 62 is installed in the shell mounting hole formed by the inner wall structure 28 and the shell guide plate 26. The cooling fin 63 is attached to the entire skin-contact protrusion 21. The inner air inlet, inner air outlet 221, first air outlet 222, and second air outlet 223 all penetrate the skin-contact protrusion 21. The cooling fin 63 has a cooling protrusion 631 on the side facing the skin-contact protrusion 21. The cooling protrusion 631 is inserted into the shell mounting hole and abuts against the cooling element 62.

[0058] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A neck fan, characterized in that, The device includes a housing having a length direction and a thickness direction, and a receiving cavity within the housing containing a fan. The housing has an inner side located on one side along the thickness direction, and the housing is bent along the length direction to form a wearing space on the side containing the inner side. A skin-contact protrusion is formed on the inner side of the housing. The housing has an air inlet and an air outlet, the air inlet communicating with the fan's air inlet side. The air outlet is located on the skin-contact protrusion, with at least a portion of the air outlet located on the peripheral side of the skin-contact protrusion. The housing has an air duct structure connecting the fan's air outlet side and the air outlet.

2. The neck fan according to claim 1, characterized in that, The housing has a width direction perpendicular to the length direction and the thickness direction, and the air outlet includes a first air outlet and a second air outlet, which are located on opposite sides of the skin-fitting protrusion along the width direction.

3. The neck fan according to claim 2, characterized in that, The number of the first air outlet and the second air outlet is even. The first air outlet is divided into two groups, and the two groups of air outlets are symmetrically arranged along the length direction. The second air outlet is also divided into two groups, and the two groups of air outlets are symmetrically arranged along the length direction.

4. The neck fan according to claim 2, characterized in that, Both the first air outlet and the second air outlet are elongated holes extending circumferentially along the skin-contact protrusion.

5. The neck fan according to claim 1, characterized in that, The air outlet includes an inner air outlet, which is located on the side of the skin-contact protrusion facing the wearing space.

6. The neck fan according to claim 5, characterized in that, The number of internal air outlets is even, and each internal air outlet is divided into two groups, with the two groups of internal air outlets arranged symmetrically along the length direction.

7. The neck fan according to claim 5, characterized in that, The housing has a width direction perpendicular to the length direction and the thickness direction, and the inner air outlet is elongated and extends along the width direction.

8. The neck fan according to claim 1, characterized in that, The air inlet includes an inner air inlet, which is located on the skin-contact protrusion.

9. The neck fan according to claim 8, characterized in that, The internal air inlet includes a first internal air inlet, which is located on the side of the skin-contact protrusion facing the wearing space.

10. The neck fan according to claim 8, characterized in that, The internal air inlet includes a second internal air inlet, which is located on the peripheral side of the skin-contact protrusion.

11. The neck fan according to claim 10, characterized in that, The internal air inlet includes a first internal air inlet and a second internal air inlet. The first internal air inlet is located on the side of the skin-contact protrusion facing the wearing space; the second internal air inlet is located on the peripheral side of the skin-contact protrusion.

12. The neck fan according to claim 11, characterized in that, The first inner air inlet is located at the end of the skin-contact protrusion along the length direction, and the second inner air inlet is arranged around the periphery of the first inner air inlet.

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