Neck fan

Abstract

To provide a neck-hanging fan having a simple structure, low cost, good ventilation and power saving. [Solution] A neck-hanging fan is provided, which includes a fan assembly 1 including a fan body and an attachment portion; a neck-hanging member for being worn around the neck of a human body, the neck-hanging member 2 being filled with a heat absorbing medium, the neck-hanging member including a first end, a second end, and an arc-shaped body sealed to each other, the neck-hanging member having an attachment hole provided in at least one of the first end and the second end; and at least one connection module 3, the connection module connects the fan assembly and the neck-hanging member, the first part being detachably connected to the neck-hanging member and the second part including a connection module that is detachable from the attachment portion of the fan assembly, the first part being provided with a mounting post and an attachment hole.

Description

[Technical field]

[0001] The present disclosure relates to a neck fan. [Background technology]

[0002] The fan accelerates and circulates the air by rotating the fan blades, and is used for cooling, reducing heat and lowering temperature. Conventional fans are large in size and difficult to carry. As people's living standards improve, more and more people are spending time outdoors exercising and playing, and the demand for portable fans is increasing.

[0003] A neck fan is a portable fan that is worn around a person's neck. Neck fans are known that have multiple fans attached to a neck hanging member that contacts the neck, and blow air onto multiple points on the user's neck. However, this type of neck fan requires the installation of complex airflow paths, which makes it expensive. In addition, the temperature of the airflow blown out of the neck fan is the ambient temperature, and in the summer outdoors when the ambient temperature is high, the temperature of the airflow blown out of the neck fan is also high, resulting in poor cooling effects.

[0004] In order to improve the cooling effect, it is known to provide a semiconductor cooling plate on the second member for active cooling, but the semiconductor cooling plate requires a large amount of power, which increases power consumption.

[0005] Therefore, there is a demand for a neck fan that has a simple structure, is low cost, provides good ventilation and cooling effects, and is energy-saving and environmentally friendly. Summary of the Invention [Problem to be solved by the invention]

[0006] In response to the above problems and needs, the present disclosure provides a new type of neck fan that solves the above problems and provides other technical effects by adopting the following technical features: [Means for solving the problem]

[0007] In one aspect, the present disclosure provides a neck-hanging fan comprising: a fan assembly including a fan body and an attachment portion provided on one side of the fan body; a neck-hanging member to be worn around the neck of a human body, the neck-hanging member being filled with a heat absorbing medium, the neck-hanging member including a first end and a second end sealed to each other, and an arc-shaped body between the first end and the second end, the neck-hanging member having an attachment hole provided in at least one of the first end and the second end; and at least one connection module connecting the fan assembly and the neck-hanging member, the at least one connection module including a first part and a second part, the first part being detachably connected to the neck-hanging member, and the second part being at least one connection module detachably connected to the attachment portion of the fan assembly, the first part being provided with a mounting post, and a mounting hole at least a portion of which passes through the first end and / or the second end.

[0008] In some examples, the at least one connection module is formed surrounding two housing halves, at least one of the two housing halves having a mounting post in the first portion and a connection portion in the second portion and arranged to be removably connected to a mounting portion of a fan assembly.

[0009] In some examples, the mounting hole is a through hole and the mounting post extends through the through hole and engages an inner wall of the through hole.

[0010] In some examples, the mounting hole is a stepped hole structure and includes a first countersunk portion, a second countersunk portion, and a through hole portion between the first and second countersunk portions, a diameter of the through hole portion being smaller than diameters of the first and second countersunk portions, a flange is formed between the through hole portion and the first and / or second countersunk portions, and the mounting post abuts at least one surface of the flange or the mounting post passes through the through hole portion.

[0011] In some examples, a connecting rod is provided on one of the connection part and the mounting part, a spherical connecting head is provided at an end of the connecting rod, and a spherical cavity for accommodating the spherical connecting head is provided on the other of the connection part and the mounting part, and the neck-hanging fan further includes a locking structure, wherein the spherical connecting head and the spherical cavity are locked or unlocked to each other by the locking structure, and when locked, the spherical connecting head is fixed within the spherical cavity, and when unlocked, the spherical connecting head is rotatable within the spherical cavity or separable from the spherical cavity.

[0012] In some examples, the locking structure includes an external thread at least partially surrounding the spherical cavity and a nut mating with the external thread, a spherical connection head is accommodated in the spherical cavity and can be locked by engaging with the external thread by the nut, the external thread has a number of grooves distributed along a circumferential direction, the number of grooves extending along an axial direction such that, when locked, the external thread tightens along a radial direction to fix the spherical connection head in the spherical cavity.

[0013] In some examples, the mounting portion is provided with the connecting rod, the connecting portion is provided with the spherical cavity, the connecting portion is provided with a slide groove along an axial direction and a slider movable within the slide groove, the slider is movable between a locked position and an unlocked position, in the locked position, the slider can engage with a spherical connecting head of the connecting rod to prevent the spherical connecting head from being separated from within the spherical cavity, and in the unlocked position, the slider can be separated from the spherical connecting head of the connecting rod, and the spherical connecting head can rotate within or be separated from the spherical cavity.

[0014] In some examples, the locking structure includes a magnetic body installed in a spherical cavity, the spherical connecting head is made of iron material, and the spherical connecting head is inserted into the spherical cavity and magnetically attracts with the magnetic body in the spherical cavity.

[0015] In some examples, a connecting rod is provided on one of the connection part and the mounting part, a spherical connecting head is provided at an end of the connecting rod, and a spherical cavity that receives the spherical connecting head is provided on the other of the connection part and the mounting part, and the spherical connecting head and the spherical cavity are joined via an interference fit or soft rubber.

[0016] In some examples, the heat absorption medium is a phase change material, a gel material, or an oil. [Brief description of the drawings]

[0017] In order to more clearly explain the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments are briefly described below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure and are not intended to limit the present disclosure.

[0018] [Figure 1] FIG. 1 shows a front view of a neck fan in accordance with at least one embodiment of the present disclosure. [Diagram 2] FIG. 1 shows a perspective view of a neck fan in accordance with at least one embodiment of the present disclosure. [Diagram 3] 1 illustrates a front view of a neck hanging member in accordance with at least one embodiment of the present disclosure. [Figure 4] 4 shows a partial cross-sectional view taken along line AA in FIG. 3. [Diagram 5] FIG. 2 is a partial view of the neck-hanging fan shown in FIG. [Figure 6] 6 shows a cross-sectional view taken along line BB in FIG. 5. [Figure 7] 1 illustrates a side view of a neck-hanging fan in accordance with at least one embodiment of the present disclosure, with the neck-hanging member omitted. [Figure 8] 8 shows a cross-sectional view taken along line CC in FIG. 7, illustrating one embodiment of the locking mechanism, with the slider in an unlocked position. [Figure 9] Two positions of the slider of the embodiment shown in FIG. 8 are shown, with the slider shown in solid lines in the unlocked position and the slider shown in dashed lines in the locked position. [Figure 10] FIG. 1 illustrates a perspective view of a fan assembly in accordance with at least one embodiment of the present disclosure. [Figure 11] FIG. 11 shows a side view of the embodiment shown in FIG. [Figure 12] 11 shows another perspective view of the embodiment shown in FIG. 10, with the housing portion of the fan body omitted. [Figure 13] FIG. 13 shows a front view of a neck-mounted fan according to yet another embodiment of the present disclosure. [Figure 14] FIG. 14 is a partial cross-sectional view taken along line DD in FIG. [Figure 15] 14 shows a partial side view of the embodiment shown in FIG. 13. [Figure 16] FIG. 14 shows a parts view of the second housing of the embodiment shown in FIG. 13. [Figure 17] FIG. 13 shows a partial perspective view of a neck-hanging fan according to yet another embodiment of the present disclosure. [Figure 18] 13 shows a partial side view of a neck-mounted fan according to yet another embodiment of the present disclosure. [Figure 19] 19 shows a cross-sectional view taken along line EE in FIG. 18. [Figure 20] FIG. 13 shows a partial perspective view of a neck-hanging fan according to yet another embodiment of the present disclosure. [Figure 21] 13 shows a partial side view of a neck-mounted fan according to yet another embodiment of the present disclosure. [Figure 22] 22 shows a cross-sectional view taken along line FF in FIG. 21. [Figure 23] FIG. 13 shows a partial perspective view of a neck-hanging fan according to yet another embodiment of the present disclosure. [Figure 24] 13 shows a partial side view of a neck-mounted fan according to yet another embodiment of the present disclosure. [Diagram 25] 25 is a cross-sectional view taken along line GG in FIG. 24. [Figure 26] FIG. 13 shows a partial perspective view of a neck-hanging fan according to yet another embodiment of the present disclosure. [Figure 27] 13 shows a partial side view of a neck-mounted fan according to yet another embodiment of the present disclosure. [Figure 28]A cross-sectional view taken along line HH in FIG. 27 is shown. [Figure 29] FIG. 13 shows a partial perspective view of a neck-hanging fan according to yet another embodiment of the present disclosure. [Diagram 30] 13 shows a partial side view of a neck-mounted fan according to yet another embodiment of the present disclosure. [Diagram 31] A cross-sectional view taken along line II in FIG. 30 is shown. [Diagram 32] FIG. 13 shows a partial perspective view of a neck-hanging fan according to yet another embodiment of the present disclosure. [Diagram 33] 13 shows a partial side view of a neck-mounted fan according to yet another embodiment of the present disclosure. [Diagram 34] 34 is a cross-sectional view taken along line JJ in FIG. 33. [Diagram 35] FIG. 13 shows a partial perspective view of a neck-hanging fan according to yet another embodiment of the present disclosure. [Diagram 36] 13 shows a partial side view of a neck-mounted fan according to yet another embodiment of the present disclosure. [Figure 37] A cross-sectional view taken along line KK in FIG. 36 is shown. [Figure 38] FIG. 13 shows a partial perspective view of a neck-hanging fan according to yet another embodiment of the present disclosure. [Figure 39] 13 shows a partial side view of a neck-mounted fan according to yet another embodiment of the present disclosure. [Diagram 40] A cross-sectional view taken along line LL in FIG. 39 is shown. [Diagram 41] FIG. 13 shows a partial perspective view of a neck-hanging fan according to yet another embodiment of the present disclosure. [Diagram 42] 13 shows a partial side view of a neck-mounted fan according to yet another embodiment of the present disclosure. [Diagram 43] A cross-sectional view taken along line MM in FIG. 42 is shown. [Diagram 44] FIG. 13 shows a partial perspective view of a neck-hanging fan according to yet another embodiment of the present disclosure. [Diagram 45] 13 shows a partial side view of a neck-mounted fan according to yet another embodiment of the present disclosure. [Figure 46] A cross-sectional view taken along line NN in Figure 45 is shown. [Figure 47] FIG. 13 shows a partial perspective view of a neck-hanging fan according to yet another embodiment of the present disclosure. [Figure 48] 13 shows a partial side view of a neck-mounted fan according to yet another embodiment of the present disclosure. [Figure 49] A cross-sectional view taken along line OO in FIG. 48 is shown. [Figure 50] FIG. 13 shows a partial perspective view of a neck-hanging fan according to yet another embodiment of the present disclosure. [Figure 51] 13 shows a partial side view of a neck-mounted fan according to yet another embodiment of the present disclosure. [Figure 52] A cross-sectional view taken along line PP in Figure 51 is shown. [Figure 53] FIG. 13 shows a partial perspective view of a neck-hanging fan according to yet another embodiment of the present disclosure. [Figure 54] 13 shows a partial side view of a neck-mounted fan according to yet another embodiment of the present disclosure. [Figure 55] A cross-sectional view taken along line QQ in Figure 54 is shown. [Figure 56] FIG. 13 shows a partial perspective view of a neck-hanging fan according to yet another embodiment of the present disclosure. [Figure 57] 13 shows a partial side view of a neck-mounted fan according to yet another embodiment of the present disclosure. [Figure 58] A cross-sectional view taken along line RR in Figure 57 is shown. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] In order to make the objectives, technical solutions and advantages of the technical solution of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of specific embodiments of the present disclosure. The same reference numerals in the drawings indicate the same components. It should be noted that the described embodiments are only some of the embodiments of the present disclosure, and not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without requiring creative labor belong to the scope of protection of the present disclosure.

[0020] Unless otherwise defined, technical or scientific terms used herein have the common meaning as understood by a person of ordinary skill in the field to which this disclosure belongs. The terms "first", "second" and similar terms used in the patent application specification and claims of this disclosure do not indicate any order, quantity or importance, but are intended to distinguish different components. Similarly, similar terms such as "a" or "one" do not necessarily indicate a quantity limitation. Similar terms such as "comprise" or "include" mean that the element or item appearing before the term includes the element or item listed after the term and its equivalents, and do not exclude other elements or items. Similar terms such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, which may be direct or indirect. "Top", "bottom", "left", "right", etc. are merely intended to indicate relative positional relationships, and if the absolute position of the described object changes, the relative positional relationships may change correspondingly.

[0021] Hereinafter, preferred embodiments of the neck-hanging fan according to the present disclosure will be described in detail with reference to the drawings.

[0022] Compared with the examples shown in the drawings, viable embodiments within the scope of protection of the present disclosure may have fewer components, other components not shown in the drawings, different components, components in different arrangements, or components connected differently, etc. Furthermore, two or more components in the drawings may be realized as one component, or one illustrated component may be realized as multiple separate components, without departing from the spirit of the present disclosure.

[0023] A neck fan is a portable fan that is worn around a person's neck. Neck fans are known that have multiple fans attached to a neck hanging member that contacts the neck, and blow air onto multiple points on the user's neck. However, this type of neck fan requires the installation of complex airflow paths, which makes it expensive. In addition, the temperature of the airflow blown out of the neck fan is the ambient temperature, and in the summer outdoors when the ambient temperature is high, the temperature of the airflow blown out of the neck fan is also high, resulting in poor cooling effects.

[0024] Also, in order to improve the cooling effect, it is known to provide active cooling by installing a semiconductor cooling plate on the neck hanging member, but this requires a large amount of power and increases power consumption.

[0025] An element filled with a heat absorbing medium such as a phase change material, gel material or oil can absorb heat by converting solid-liquid properties or by its own high specific heat capacity, and such a heat absorbing element can be attached to the human body to play the role of cooling and cooling.

[0026] In response to the deficiencies of the prior art, the present disclosure provides a new type of neck-hanging fan that achieves good ventilation and temperature reduction effects with a simple structure and low cost, and is energy-saving and environmentally friendly by removably connecting a neck-hanging member filled with a heat absorbing medium and a fan. Hereinafter, an embodiment of the neck-hanging fan proposed in the present disclosure will be described by way of example with reference to the drawings.

[0027] 1-6 show a neck-hanging fan according to at least one embodiment of the present disclosure. As shown in FIG. 1, the neck-hanging fan includes a fan assembly 1, a neck-hanging member 2, and at least one connection module 3 connecting the fan assembly 1 and the neck-hanging member 2. In the embodiment shown in FIG. 1 and FIG. 2, two fan assemblies 1 and two corresponding connection modules 3 are shown, but the number of fan assemblies and connection modules may be more or less, and the present disclosure is not limited thereto. The connection module 3 removably connects both the fan assembly 1 and the neck-hanging member 2.

[0028] The neck hanging member 2 is formed in an arc shape that fits the neck of the human body as a whole, and is comfortable to wear around the neck of the human body and fits the skin surface of the neck. The neck hanging member 2 is made of a polymer material such as polyurethane (TPU) filled with a heat absorbing medium. The heat absorbing medium may be, for example, a phase change material, a gel material, or oil.

[0029] A phase change material (PCM) is a material that can change form and provide latent heat when the temperature changes. The process in which a phase change material changes from solid to liquid or liquid to solid is called the phase change process, during which the phase change material absorbs or releases a large amount of latent heat. Water is the most common phase change material, and when the temperature is as low as 0°C, water turns from liquid to solid (freezes). When the temperature exceeds 0°C, water turns from solid to liquid (melts). During the freezing process, it absorbs and stores a large amount of cold energy, and during the melting process, it absorbs a large amount of heat energy. In this embodiment, other than water, the preferred phase change material may be a solid-liquid phase change material, whose phase change temperature (also called freezing point) is about room temperature (16°C-33°C), such as higher aliphatic hydrocarbons (n-hexadecane, n-octadecane, paraffin, etc.), fatty acids and their esters (stearic acid, palmitic acid, etc.), crystalline hydrated salts (Na2SO4·10H2O, Mn(NO3)2·6H2O, etc.), molten salts (LiF, NaF, CaF2, etc.), metals and alloys (such as lead-tin alloys), and polymers (such as polyethylene glycol).

[0030] In actual use, the neck hanging member 2 filled with the phase change material may be stored at low temperature for a certain period of time and then removed, during which time the phase change material is in a solid state. The neck hanging member 2 can be connected to the fan assembly 1 via the connection module 3 and hung around the neck of the human body to lower the temperature and ventilate. Since the neck hanging member 2 is detachably connected to the connection module 3, when the temperature of the phase change material in the neck hanging member 2 is close to room temperature and the temperature-reducing effect decreases, the neck hanging member 2 can be removed and replaced with a new neck hanging member 2 stored at low temperature, which is convenient.

[0031] It is a technical problem to be solved to simply and removably connect the neck hanging member 2 to the connection module 3 at low cost. First, the TPU filled with phase change material is difficult to form a connection housing by itself, and the housing used for connection may need to be circumscribed and wrapped with the TPU material by itself, and additional elastic members provide compliance and flexibility, which leads to a complex structure and higher costs. In addition, the temperature-reducing effect is also affected because the TPU material cannot be directly attached to the skin of the human body.

[0032] Therefore, the present disclosure provides a new connection method in which at least one end of the neck hanging member is provided with a mounting hole, and the end and the connection module are connected by joining via a hole-post, which is simple and cost-effective, and does not require an additional housing or connection member to be provided on the neck hanging member.

[0033] The present disclosure also provides a process method for manufacturing such a neck hanging member.

[0034] S1, providing a hollow TPU material having at least one open end. S2. Inject the heat absorbing medium into the TPU material. S3, the open end of the TPU material is crimped and integrated by ultrasonic welding. S4: Drill a through hole in the fused part.

[0035] It is also possible to connect the neck hanging member and the connection module using adhesive or gel, without providing mounting holes in the neck hanging member.

[0036] 3 and 4 further illustrate the structure of the mounting hole 5 of the neck hanging member 2. As shown in FIG. 4, the mounting hole 5 may have a stepped hole structure including a first countersunk portion 51, a second countersunk portion 52, and a through-hole portion 53 between the first countersunk portion 51 and the second countersunk portion 52. In order to form a flange 54 between the through-hole portion 53 and the first countersunk portion 51 and / or the second countersunk portion 52, the through-hole portion 53 has a smaller diameter than the first countersunk portion 51 and the second countersunk portion 52. Exemplarily, the first countersunk portion 51 and the second countersunk portion 52 may be provided symmetrically with respect to the through-hole portion 53.

[0037] Returning to the embodiment of Figures 1-6, the connection module 3 includes a first part 31 and a second part 32 that respectively connect the neck hanging member 2 and the fan assembly 1 along the axial direction, with the first part 31 being removably connected to the neck hanging member 2 and the second part 32 being removably connected to the fan assembly 1.

[0038] As shown in the cross-sectional view of Fig. 6, the connection module 3 is formed by enclosing two housing halves, respectively called a first housing 33 and a second housing 34. Each housing 33, 34 may include a cover and a body provided with mounting posts 61, 62, between which a snap-fit ​​connection may be adopted, for example. In the embodiment shown in Fig. 6, the first mounting post 61 abuts against one side of the flange 54 of the mounting hole 5, and the second mounting post 62 abuts against the other side opposite to the first side of the flange 54 of the mounting hole 5.

[0039] FIG. 6 shows two alternative embodiments of the mounting post 6 respectively.

[0040] The side wall of the first mounting post 61 of the first housing 33 has an arc-shaped surface that comes into close contact with the first countersunk portion 51 and / or the second countersunk portion 52 of the first end portion 21 or the second end portion 22, and one end that comes into contact with the flange 54 of the first mounting post 61 has a diameter substantially equal to the size of the flange 54, and the other end on the opposite side has an open structure. The lid can cover this open structure.

[0041] The side wall of the second mounting post 62 of the second housing 34 has an arc-shaped surface that is in close contact with the first countersunk portion 51 and / or the second countersunk portion 52 of the first end 21 or the second end 22 of the neck hanging member 2, and one end of the second mounting post 62 that contacts the flange 54 also has a diameter approximately equal to the size of the flange 54. The difference is that the second mounting post 62 has a through-hole structure through which the second mounting post 62 penetrates, and the through-hole structure is provided coaxially with the second mounting post 62, and accommodates a third mounting post 63 provided on the cover that engages with the through-hole structure. The third mounting post 63 penetrates the through-hole structure of the second mounting post 62 and abuts against one surface of the flange 54 together with the end of the second mounting post 62. Preferably, the first mounting post 61, the second mounting post 62, the third mounting post 63, and the through-hole portion 53 are coaxial with each other.

[0042] The above two types of mounting posts 6 may be used in combination or individually. Preferably, when the two types of mounting posts 6 are used in combination, two mirror-symmetrical connection modules 3 can multiplex the two types of mounting posts 6, with the difference being that the order of the two can be exchanged, and the order of the first housing 33 and the second housing 34 can be exchanged accordingly, thus saving the cost of mold manufacturing and allowing one set of molds to produce all the parts used in the two connection modules 3.

[0043] When attaching the neck hanging member 2, first, the first countersunk portion 51 of the first end or the second end 22 of the neck hanging member 2 is engaged with the first mounting post 61 of the first housing 33, then the second mounting post 62 of the second housing 34 is engaged with the second countersunk portion 52, and finally the third mounting post 63 of the cover of the second housing 34 is inserted into the through hole of the second mounting post 62 to hold down the flange 54. Conversely, when removing the neck hanging member 2, first, the cover of the second housing 34 and the third mounting post 63 are pulled out from the through hole structure of the second mounting post 62, and then the second mounting post 62 is separated from the second countersunk portion 52, whereby the first end 21 or the second end 22 of the neck hanging member 2 can be separated from the first housing 33.

[0044] In an alternative embodiment, the mounting holes 5 are provided as through holes and the mounting posts 6 pass directly through the through holes and engage the inner walls of the through holes.

[0045] In addition to the connection between the end of the neck hanging assembly and the connection module, the present disclosure further provides several connection methods between the fan assembly and the connection module, which will be described in detail below with reference to the drawings, and those skilled in the art may adopt one or more of the connection methods disclosed in the present disclosure, or a combination thereof.

[0046] 7-12 are exemplary illustrations of a neck-mounted fan in accordance with at least one embodiment of the present disclosure, illustrating alternative connection methods between the fan assembly and the connection module.

[0047] As shown in Figs. 10-12, the fan assembly 1 may include a fan body 11 and a mounting portion 12 provided on one side of the fan body. The fan body 11 has a generally cylindrical profile, and is provided thereon with an air inlet 13 and an air outlet 14. The air inlet 13 is provided in an opening on the top surface of the fan body 11 and is surrounded by a top cover 15 that partially covers the opening, and there is a gap between the top cover 15 and the opening on the top surface of the fan body 11, through which air can enter the fan body 11. The air outlet 14 is provided around the circumferential side wall of the fan body 11 and is preferably directed toward the neck or face of the human body. Exemplarily, the air outlet 14 includes a plurality of parallel-arranged through grooves provided along the circumferential side wall.

[0048] As shown in Fig. 12, a fan blade assembly 111 and a driving motor 112 are provided in the fan body 11, and the driving motor 112 drives and rotates the fan blade assembly 111 to generate airflow and continuously output the airflow to the human body. In order to facilitate the wind to be blown out from the side wall of the fan body 11, the fan blade assembly 111 is preferably installed non-concentrically with the fan body 11, and the distance from the edge of the fan blade assembly 111 to the inner wall of the fan body 11 exhibits an involute distribution and reaches a maximum distance at the air outlet 14. For the sake of brevity, the present disclosure omits other elements of the fan assembly 1 that are less relevant to the concept of the present disclosure, such as a battery, a control circuit board, electric wires, and other common elements of a fan assembly, and those skilled in the art can adjust and install them according to actual needs.

[0049] 8 and 10, the mounting part 12 is provided with a connecting rod 7 that protrudes from the side wall of the fan body 11 and has a spherical connecting head 71 at its end. As shown in the cross-sectional view of Fig. 8, a screw hole is provided at the bottom of the connecting rod 7, so that it can be attached to the fan body 11 by a screw.

[0050] As shown in FIG. 7 , the second part 32 of the connection module 3 is provided with a connection part 35, the side of the connection part 35 has an opening, and a spherical cavity 8 is provided to accommodate the spherical connection head 71, the size of the spherical cavity 8 is basically matched with the spherical connection head 71, the spherical connection head 7 can enter the spherical cavity 8 from the side opening of the connection part 35, and allow the spherical connection head 7 to rotate freely along the surface of the spherical cavity 8, so as to flexibly adjust the spatial angle of the fan assembly 1 relative to the connection module 3, and adjust the appropriate blowing angle to the human body.

[0051] In order to fix the position of the spherical connecting head 71, the neck-hanging fan further includes a locking structure 9, and the spherical connecting head 71 and the spherical cavity 8 are locked or unlocked from each other by the locking structure 9. Specifically, when locked, the spherical connecting head 71 is fixed in the spherical cavity 8, and when unlocked, the spherical connecting head 71 can rotate in the spherical cavity 8 or can be separated from the spherical cavity 8.

[0052] In addition, "the spherical connection head 71 is fixed in the spherical cavity 8" may include a case where the spherical connection head 71 is completely fixed in the spherical cavity 8, so that the spherical connection head 71 cannot move or rotate relative to the spherical cavity 8, and a case where the spherical connection head 71 cannot be separated from the spherical cavity 8 but can rotate at a certain angle.

[0053] 8 and 9 show an example of the lock structure 9. The connecting portion 35 is provided with a slide groove 921 along the axial direction and a slider 922 movable within the slide groove 921, and the slider 922 is movable between a locked position and an unlocked position. In this embodiment, the slider 922 is provided above an opening on the side of the connecting portion 35.

[0054] 8 , in the unlocked position, the slider 922 can be separated from the spherical connecting head 71 of the connecting rod 7, and the spherical connecting head 71 can be separated from the spherical cavity 8. In other words, in the unlocked position, the spherical connecting head 71 can be attached to the spherical cavity 8.

[0055] After the spherical connecting head 71 is inserted into the spherical cavity 8, it can move downward along the axial direction (the direction of the arrow in FIG. 9) by a certain distance d, at which time the slider 922 reaches the lower limit position (shown by the broken line in FIG. 9) in the slide groove, and the locking structure 9 is in the locking position. In the locking position, the slider 922 can engage with the spherical connecting head 71 of the connecting rod 7 to prevent the spherical connecting head 71 from being separated from the spherical cavity 8, and in particular, the spherical connecting head 71 cannot be removed from the side opening of the connecting part 35 due to the restriction of the slider 922.

[0056] 13-16 exemplarily show a neck fan according to another embodiment of the present disclosure. For the sake of brevity, the following mainly describes the differences between this embodiment and the previous embodiment, and the structures of the parts not described can be referred to the previous embodiment, and the description will be omitted here, and this description method also applies to all the embodiments described below.

[0057] In this embodiment, the locking structure 9 includes a male thread 911 that at least partially surrounds the spherical cavity 8 and a nut 912 that engages with the male thread 911, and the spherical connecting head 71 is accommodated in the spherical cavity 8 and can be locked by engaging with the male thread 911 through the nut 912. The male thread 911 has a plurality of grooves 913 distributed along the circumferential direction, and the plurality of grooves 913 extend along the axial direction, allowing the male thread 911 to move a certain amount along the radial direction, so that the male thread 911 can be tightened along the radial direction when locked to fix the spherical connecting head 71 in the spherical cavity 8. The male thread 911 is, for example, made of hard plastic having a certain elasticity.

[0058] The groove 913 may also be formed by combining two half grooves of the two housing halves 33, 34 as shown in FIG.

[0059] The fan assembly 1 can be connected to the connection module 3 in the following steps: first, the nut 912 is screwed off the male thread 911 and fitted onto the connection rod 7, then the spherical connection head 71 of the fan assembly 1 is inserted into the spherical cavity 8, and finally the nut 912 is screwed onto the male thread 911, thereby radially tightening the male thread 911 to fix the spherical connection head 71 in the spherical cavity 8. Conversely, the spherical connection head 71 can be removed from the spherical cavity 8 by unscrewing the nut 912 from the male thread 911.

[0060] In this embodiment, a protrusion 64 may be provided on the end of the second mounting post 62 of the second housing 34, and the cross section of the protrusion 64 may be, for example, a cross-shape, a hexagonal shape, or a line shape. The protrusion 64 penetrates the through-hole portion 53 of the mounting hole 5 and engages with the inner wall of the through-hole portion 53, as shown in Figures 14 and 16.

[0061] 17-19 exemplarily show a neck-hanging fan according to yet another embodiment of the present disclosure. Different from the above embodiment, the locking structure 9 of this embodiment includes a magnetic body 931 installed in the spherical cavity 8, and the spherical connecting head 71 is made of iron material, so that the spherical connecting head 71 can be inserted into the spherical cavity 8 and magnetically attracted to the magnetic body 931 in the spherical cavity 8. When separating, the spherical connecting head 71 can be extracted by simply applying an external force to overcome the magnetic force.

[0062] In the embodiment of Figures 17-19, the connection part 35 of the connection module 3 is provided with a connection rod 7 having a spherical connection head 71 at its end, and the mounting part 12 of the fan assembly 1 is provided with a spherical cavity 8 for receiving the spherical connection head 71.

[0063] 20-22 exemplarily show a neck-mounted fan according to yet another embodiment of the present disclosure. Different from the previous embodiment, the spherical cavity 8 of this embodiment is provided at the connection part 35 of the connection module 3, and the connection rod 7 and the spherical connector 71 are provided at the mounting part 12 of the fan assembly 1.

[0064] 23-25 ​​exemplarily show a neck-hanging fan according to yet another embodiment of the present disclosure. Different from the above embodiment, the spherical connection head 71 of this embodiment is connected to the spherical cavity 8 via a soft rubber 941. The soft rubber 941 is a rubber, gel or plastic product that is deformable and has plasticity. Exemplarily, the soft rubber 941 may be fixedly installed on the inner wall of the spherical cavity 8, and when the spherical connection head 71 contacts and connects with the soft rubber 941, the soft rubber 941 deforms to encase the spherical connection head 71. The surface of the soft rubber 941 has a certain frictional force, which can fix the spherical connection head 71 in a predetermined position. When removal is required, the frictional force can be overcome to pull out the spherical connection head 71.

[0065] In the embodiment of Figures 23-25, the connection part 35 of the connection module 3 is provided with a connection rod 7 having a spherical connection head 71 at its end, and the mounting part 12 of the fan assembly 1 is provided with a spherical cavity 8 for receiving the spherical connection head 71.

[0066] 26-28 exemplarily show a neck-hanging fan according to yet another embodiment of the present disclosure. Different from the previous embodiment, the spherical cavity 8 of this embodiment is provided at the connection part 35 of the connection module 3, and the connection rod 7 and the spherical connection head 71 are provided at the mounting part 12 of the fan assembly 1.

[0067] 29-31 exemplarily show a neck-hanging fan according to yet another embodiment of the present disclosure. Different from the above embodiment, the spherical connection head 71 of this embodiment has an interference fit between it and the spherical cavity 8. To achieve the interference fit dimensions, a hard plastic 942 may be fixedly provided on the inner wall of the spherical cavity 8, for example. The interference fit can fix the spherical connection head 71 in a predetermined position in this embodiment. When removing, the spherical connection head 71 can be taken out by overcoming the interference fit resistance.

[0068] In the embodiment of Figures 29-31, the connection part 35 of the connection module 3 is provided with a connection rod 7 having a spherical connection head 71 at its end, and the mounting part 12 of the fan assembly 1 is provided with a spherical cavity 8 for receiving the spherical connection head 71.

[0069] 32-34 exemplarily show a neck-mounted fan according to yet another embodiment of the present disclosure. Different from the previous embodiment, the spherical cavity 8 of this embodiment is provided at the connection part 35 of the connection module 3, and the connection rod 7 and the spherical connector 71 are provided at the mounting part 12 of the fan assembly 1.

[0070] 35 to 37 exemplarily show a neck-hanging fan according to yet another embodiment of the present disclosure. Different from the above embodiment, the neck-hanging fan of this embodiment has a substantially cylindrical body, and further includes an intermediate connecting member 95 installed between the connecting part 35 and the mounting part 12, a pair of hinge parts 952 facing each other are installed at one end of the intermediate connecting member 95, a mounting gap is defined between the pair of hinge parts 952, and a pin hole is installed through the pair of hinge parts 952 along a first axis A perpendicular to the axial direction, and a connecting part mounting hole 953 for accommodating a connecting part is installed at the other end of the intermediate connecting member 95 along a second axis B parallel to the axial direction.

[0071] In this embodiment, the connection part 35 is provided with a connecting rod 7 that is inserted into the connection part mounting hole 953 and is rotatable along the second axis B. The connecting rod 7 may be provided with a locking structure arranged to prevent the connecting rod 7 from being separated from the connection part mounting hole 953 after the connecting rod 7 is inserted into the connection part mounting hole 953. In this embodiment, the locking structure includes a protrusion 72 provided on a circumferential side wall of the connecting rod 7, and an annular groove 951 that engages with the protrusion 72 is provided on an inner wall of the connection part mounting hole 953.

[0072] Correspondingly, the connection portion 35 is provided with a rotating portion 96, which is inserted into the mounting gap and has a through hole along the first axis A. The rotating portion 96 and the pair of hinge portions 952 are connected by a pin 961, and the rotating portion 96 is rotatable along the first axis A relative to the intermediate connecting member 95.

[0073] When the fan assembly 1 and the connection module 3 need to be connected, the rotating part 96 is first inserted into the mounting gap between the pair of hinge parts 952, and then the two are connected by the pin 961. Then, the connecting rod 7 of the fan assembly 1 can be inserted into the connecting part mounting hole 953, and when it is mounted in a predetermined position, the protrusion 72 is engaged with the annular groove 951, so that the connecting rod 7 is not easily separated from the connecting part mounting hole 953. The order of the above steps may be reversed, i.e., the connecting rod 7 is first inserted into the connecting part mounting hole 953, and then the rotating part 96 is inserted into the mounting gap between the pair of hinge parts 952.

[0074] After being mounted in position, the fan assembly 1 and the connection module 3 can be rotated about a first axis A by adjusting the rotating portion 96 and the pair of hinge portions 952, respectively, or rotated about a second axis B by adjusting the connecting rod 7, thereby allowing the spatial angle between the fan assembly 1 and the connection module 3 to be flexibly adjusted with degrees of freedom along two axes.

[0075] 38-40 exemplarily show a neck-hanging fan according to yet another embodiment of the present disclosure. Different from the previous embodiment, the connecting rod 7 of this embodiment is provided at the connecting part 35 of the connecting module 3, and the rotating part 96 is provided at the mounting part 12 of the fan assembly 1.

[0076] 41-43 exemplarily show a neck-hanging fan according to yet another embodiment of the present disclosure. Different from the above embodiment, the locking structure includes at least one through hole provided on the circumferential side wall of the connecting rod 7, at least one steel ball 76 that can penetrate the through hole, and a restoring elastic member 73 connected to the at least one steel ball 76, and the restoring elastic member 73 applies an elastic force to the steel ball 76 to protrude from the through hole. In this embodiment, the locking structure includes two steel balls 76, and the restoring elastic member 73 may adopt a plate spring, a leaf spring, a disc spring, an annular spring, or a rubber elastic ring, etc., and both ends of the restoring elastic member 73 are respectively connected to the two steel balls 76. The diameter of the through hole is preferably smaller than the diameter of the steel ball 76 and larger than half the diameter of the steel ball 76, and the depth of the through hole is also smaller than the diameter of the steel ball 76, so that at least a part of the steel ball 76 can be exposed from the circumferential side wall of the connecting rod 7.

[0077] Correspondingly, an annular groove 951 that engages with the steel ball 76 is provided on the inner wall of the connection portion mounting hole 953 .

[0078] When the fan assembly 1 and the connection module 3 need to be connected, first, the connecting rod 7 is inserted into the connection part mounting hole 953, and the steel ball 76 is constrained by the connection part mounting hole 953 and drawn into the circumferential side wall of the connecting rod 7, so that the connecting rod 7 is mounted in a predetermined position. At this time, the steel ball 76 engages with the annular groove 951 and is inserted into the annular groove 951. The elastic force applied to the steel ball 76 by the elastic return member 73 holds the steel ball 76 in the annular groove 951, preventing the connecting rod 7 from slipping out of the connection part mounting hole 953. The step of inserting the rotating part 96 at the other end into the mounting gap between the pair of hinge parts 952 is the same as in the previous embodiment, and therefore will not be described here.

[0079] In this embodiment, the rotating part 96 is provided at the connection part 35 of the connection module 3 , and the connection rod 7 is provided at the mounting part 12 of the fan module 1 .

[0080] 44-46 exemplarily show a neck-hanging fan according to yet another embodiment of the present disclosure. The difference from the previous embodiment is that the connecting rod 7 of this embodiment is provided at the connecting portion 35 of the connecting module 3, and the rotating portion 96 is provided at the mounting portion 12 of the fan assembly 1.

[0081] 47 to 49 exemplarily show a neck-hanging fan according to yet another embodiment of the present disclosure. The difference from the above embodiment is that the locking structure includes a buckle 74 provided on a circumferential side wall of the connecting rod 7, an annular groove 951 that engages with the buckle 74 is provided on the inner wall of the connection part mounting hole 953, and an unlocking button 75 is further provided on the side of the buckle 74 away from the connection part mounting hole 953, the unlocking button 75 is connected to the buckle 74, and when the unlocking button 75 is pressed, the buckle 74 is tightened radially to allow the buckle 74 to be separated from the annular groove 951.

[0082] In the embodiment shown in FIGS. 47 to 49, the rotating part 96 is provided on the connection part 35 of the connection module 3 and the connection lever 7 is provided on the mounting part 12 of the fan assembly 1 .

[0083] 50-52 exemplarily show a neck-hanging fan according to yet another embodiment of the present disclosure. Different from the previous embodiment, the connecting rod 7 of this embodiment is provided at the connecting portion 35 of the connecting module 3, and the rotating portion 96 is provided at the mounting portion 12 of the fan assembly 1.

[0084] 53-55 exemplarily show a neck-hanging fan according to yet another embodiment of the present disclosure. Different from the above embodiment, the locking structure includes a magnetic body 931 provided at the end of the connecting rod 7, and another magnetic body 932 opposite to the magnetic pole of the magnetic body 931 is provided at the bottom wall of the connecting part mounting hole 953. Alternatively, an iron block or other iron member may be provided at the bottom wall of the connecting part mounting hole 953. Therefore, the end of the connecting rod 7 and the bottom wall of the connecting part mounting hole 953 are attracted to each other by magnetic force. When it is necessary to remove the fan, the magnetic force can be overcome to separate the connecting rod 7 and the connecting part mounting hole 953.

[0085] An example of a neck fan disclosed in this specification is shown in the following paragraphs.

[0086] Clause 1: A fan assembly including a fan body and a mounting portion provided on one side of the fan body; A neck hanging member to be worn around the neck of a human body, the neck hanging member being filled with a heat absorbing medium, the neck hanging member including a first end and a second end sealed to each other, and an arc-shaped body between the first end and the second end, and an attachment hole being provided in at least one of the first end and the second end; at least one connection module, the at least one connection module connecting the fan assembly and the neck hanging member, the at least one connection module including a first portion and a second portion, the first portion being removably connected to the neck hanging member and the second portion being removably connected to a mounting portion of the fan assembly; A neck-mounted fan, characterized in that the first part is provided with a mounting post and a mounting hole that at least partially penetrates the first end and / or the second end.

[0087] Clause 2: The neck-mounted fan described in Clause 1, wherein the at least one connection module is formed surrounding two housing halves, at least one of the two housing halves being provided with a mounting post in the first portion and a connection portion in the second portion and arranged to be removably connected to a mounting portion of the fan assembly.

[0088] Clause 3: A neck-mounted fan described in clause 1 or 2, wherein the mounting hole is a through hole, and the mounting post passes through the through hole and engages with the inner wall of the through hole.

[0089] Clause 4: The mounting hole has a stepped hole structure including a first counterbore portion, a second counterbore portion, and a through-hole portion between the first counterbore portion and the second counterbore portion, the diameter of the through-hole portion is smaller than the diameters of the first counterbore portion and the second counterbore portion, and a flange is formed between the through-hole portion and the first counterbore portion and / or the second counterbore portion, The mounting post abuts at least one surface of the flange; or 3. The neck-hanging fan described in clause 1 or 2, wherein the mounting post passes through the through-hole portion.

[0090] Clause 5: A connecting rod is provided on one of the connection part and the mounting part, a spherical connecting head is provided on an end of the connecting rod, and a spherical cavity for receiving the spherical connecting head is provided on the other of the connection part and the mounting part; The neck-hanging fan described in clause 2, wherein the neck-hanging fan further includes a locking structure, wherein the spherical connecting head and the spherical cavity are locked or unlocked to each other by the locking structure, and when locked, the spherical connecting head is fixed within the spherical cavity, and when unlocked, the spherical connecting head is rotatable within the spherical cavity or separable from the spherical cavity.

[0091] Clause 6: The locking structure includes a male thread that at least partially surrounds the spherical cavity, and a nut that engages with the male thread, and a spherical connection head is accommodated in the spherical cavity and can be locked by engaging with the male thread by the nut; 6. The neck-hanging fan described in clause 5, wherein the male screw has a number of grooves distributed along a circumferential direction, the number of grooves extending along an axial direction such that, when locked, the male screw tightens along a radial direction to fix the spherical connection head within the spherical cavity.

[0092] Clause 7: The mounting portion is provided with the connecting rod, the connection portion is provided with the spherical cavity, the connection portion is provided with a slide groove along an axial direction and a slider movable within the slide groove, the slider is movable between a locked position and an unlocked position, In a locked position, the slider can engage the spherical connecting head of the connecting rod and prevent the spherical connecting head from separating from within the spherical cavity; 6. The neck-hung fan according to clause 5, wherein in an unlocked position, the slider is separable from the spherical connecting head of said connecting rod, and said spherical connecting head is separable from said spherical cavity.

[0093] Clause 8: The neck-hanging fan described in Clause 5, wherein the locking structure includes a magnetic body installed in a spherical cavity, the spherical connecting head is made of iron material, the spherical connecting head is inserted into the spherical cavity and magnetically attracts with the magnetic body in the spherical cavity.

[0094] Clause 9: A connecting rod is provided on one of the connection part and the mounting part, a spherical connecting head is provided at an end of the connecting rod, and a spherical cavity for receiving the spherical connecting head is provided on the other of the connection part and the mounting part; 3. The neck-hanging fan according to claim 2, wherein the joint between the spherical connection head and the spherical cavity is via an interference fit or soft rubber.

[0095] Clause 10: The neck fan described in clause 1, wherein the heat absorption medium is a phase change material, a gel material or an oil.

[0096] Clause 11: The intermediate connection member further includes an intermediate connection member having a substantially cylindrical body and provided between the connection portion and the mounting portion, a pair of hinge portions facing each other are provided at one end of the intermediate connection member, a mounting gap is defined between the pair of hinge portions, and a pin hole is provided through the intermediate connection member along a first axis perpendicular to the axial direction, and a connection portion mounting hole for accommodating the connection portion is provided at the other end of the intermediate connection member along a second axis parallel to the axial direction, a connecting rod is provided in one of the connection portion and the mounting portion, the connecting rod is inserted into the connection portion mounting hole and is rotatable along the second axis, and a locking structure is provided on the connecting rod, the locking structure being arranged to prevent the connecting rod from being separated from the connection portion mounting hole after the connecting rod is inserted into the connection portion mounting hole; A neck-hanging fan as described in clause 2, wherein a rotating part is provided on the other of the connection part and the mounting part, the rotating part corresponds to within the mounting gap and has a through hole along the first axis, and the rotating part and the pair of hinge parts are connected by a pin, thereby allowing the rotating part to rotate along the first axis relative to the intermediate connecting member.

[0097] Clause 12: A neck-hanging fan as described in Clause 11, wherein the locking structure includes a protrusion provided on the circumferential side wall of the connecting rod, and the inner wall of the connecting part mounting hole is provided with an annular groove that engages with the protrusion.

[0098] Clause 13: A neck-hanging fan as described in Clause 11, wherein the locking structure includes at least one through hole provided in the circumferential side wall of the connecting rod, at least one steel ball capable of penetrating the through hole, and a restoring elastic member connected to the at least one steel ball, and the inner wall of the connection part mounting hole is provided with an annular groove that engages with the at least one steel ball, and the restoring elastic member applies an elastic force to the steel ball protruding from the through hole, so that the at least one steel ball engages with the annular groove when mounted in a predetermined position.

[0099] Clause 14: A neck-hanging fan as described in Clause 11, wherein the locking structure includes a buckle provided on the circumferential side wall of the connecting rod, the inner wall of the connection part mounting hole is provided with an annular groove that engages with the buckle, and the side of the buckle away from the connection part mounting hole is further provided with an unlocking button connected to the buckle, and when the unlocking button is pressed, the buckle is tightened radially, allowing the buckle to be separated from the annular groove.

[0100] Clause 15: A neck-hanging fan as described in Clause 11, wherein the locking structure includes a magnetic body provided at the end of the connecting rod, and the bottom wall of the connection mounting hole is provided with an iron block or another magnetic body with opposite magnetic poles.

[0101] Although the exemplary embodiment of the second neck fan according to the present disclosure has been described in detail above with reference to the preferred embodiment, those skilled in the art will understand that various modifications and changes can be made to the specific embodiment without departing from the spirit of the present disclosure. In addition, the various technical features and configurations provided by each aspect of the present disclosure can be combined in various ways without exceeding the scope of protection of the present disclosure, and the scope of protection of the present disclosure is determined by the scope of the accompanying claims. [Explanation of symbols]

[0102] 1 Fan Module 11 Fan body 111 Fan Blade Assembly 112 Drive motor 12 Mounting part 13 Air Intake 14 Ventilation vent 15 Top lid 2 Neck hanging parts 21 First end 22 Second end 23 Arc-shaped body 3 Connection Module 31 Part 1 32 Part 2 33 First Housing 34 Second Housing 35 Connection 4 Endothermic medium 5 Mounting holes 51 First counterbore 52 Second counterbore 53 Through hole 54 Flange 6 Mounting pole 61 First mounting post 62 Second mounting pole 63 Third mounting post 7 Connecting Rod 71 Spherical connection head 72 Protrusion 73 Returning elastic member 74 Buckle 75 Unlock button 76 Steel Ball 8 Spherical Cavity 9 Locking Structure 911 Male thread 912 Nut 913 Groove 921 Slide groove 922 Slider 931, 932 Magnetic material 941 Soft rubber 942 Hard Plastic 95 Intermediate connecting member 951 Circular groove 952 Hinge part 953 Connection mounting hole 96 Rotating Part 961 Pins A 1st axis B 2nd axis

Claims

1. a fan assembly including a fan body and a mounting portion provided on one side of the fan body; A neck hanging member to be worn around the neck of a human body, the neck hanging member being filled with a heat absorbing medium, the neck hanging member including a first end and a second end sealed to each other, and an arc-shaped body between the first end and the second end, the neck hanging member having an attachment hole in at least one of the first end and the second end; at least one connection module connecting the fan assembly and a neck hanging member, the at least one connection module including a first portion and a second portion, the first portion being removably connected to the neck hanging member and the second portion being removably connected to a mounting portion of the fan assembly; A neck-mounted fan, characterized in that the first part is provided with a mounting post and a mounting hole that at least partially passes through the first end and / or the second end.

2. 2. The neck-mounted fan of claim 1, wherein the at least one connection module is formed surrounding two housing halves, at least one of the two housing halves being provided with a mounting post in the first portion and a connection portion in the second portion, and being arranged to be removably connected to a mounting portion of a fan assembly.

3. 3. The neck-mounted fan according to claim 1 or 2, wherein the mounting hole is a through hole, and the mounting post passes through the through hole and engages with an inner wall of the through hole.

4. the mounting hole has a stepped hole structure including a first countersunk portion, a second countersunk portion, and a through-hole portion between the first countersunk portion and the second countersunk portion, a diameter of the through-hole portion is smaller than diameters of the first countersunk portion and the second countersunk portion, and a flange is formed between the through-hole portion and the first countersunk portion and / or the second countersunk portion, The mounting post abuts at least one surface of the flange; or The neck-mounted fan according to claim 1 or 2, wherein the mounting pole passes through the through-hole portion.

5. a connecting rod is provided on one of the connecting portion and the mounting portion, a spherical connecting head is provided on an end of the connecting rod, and a spherical cavity is provided on the other of the connecting portion and the mounting portion to receive the spherical connecting head; 3. The neck-hanging fan according to claim 2, further comprising a locking structure, wherein the spherical connecting head and the spherical cavity are locked or unlocked from each other by the locking structure, and when locked, the spherical connecting head is fixed in the spherical cavity, and when unlocked, the spherical connecting head is rotatable in the spherical cavity or separable from the spherical cavity.

6. The locking structure includes an external thread at least partially surrounding the spherical cavity and a nut mating with the external thread, and a spherical connection head is received in the spherical cavity and can be locked by engaging with the external thread by the nut; The neck-hanging fan according to claim 5, characterized in that the male screw has a plurality of grooves distributed along a circumferential direction, and the plurality of grooves extend along an axial direction, so that when locked, the male screw tightens along a radial direction to fix the spherical connection head in the spherical cavity.

7. the mounting portion is provided with the connecting rod, the connecting portion is provided with the spherical cavity, the connecting portion is provided with a slide groove along an axial direction and a slider movable within the slide groove, the slider is movable between a locked position and an unlocked position, In a locked position, the slider can engage the spherical connecting head of the connecting rod and prevent the spherical connecting head from separating from within the spherical cavity; 6. The neck-hanging fan according to claim 5, wherein in the unlocked position, the slider can be separated from the spherical connecting head of the connecting rod, and the spherical connecting head can be separated from the spherical cavity.

8. 6. The neck-hanging fan according to claim 5, wherein the locking structure includes a magnetic body installed in a spherical cavity, the spherical connecting head is made of iron material, the spherical connecting head is inserted into the spherical cavity, and is magnetically attracted to the magnetic body in the spherical cavity.

9. a connecting rod is provided on one of the connecting portion and the mounting portion, a spherical connecting head is provided on an end of the connecting rod, and a spherical cavity is provided on the other of the connecting portion and the mounting portion to receive the spherical connecting head; 3. The neck-hanging fan according to claim 2, wherein the spherical connection head and the spherical cavity are joined by an interference fit or soft rubber.

10. The neck fan according to claim 1 , wherein the heat absorbing medium is a phase change material, a gel material or an oil.

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