Neck-hung fan

Abstract

The neck-hanging fan comprises an arc-shaped neck-hanging section in the middle and fan sections on the two sides, the neck-hanging section and the fan sections are connected through an adjusting device, the adjusting device comprises an aluminum plate located on the core portion and a silica gel covering layer wrapping the aluminum plate, and the two ends of the aluminum plate are inserted into the neck-hanging section and the fan sections respectively to be installed and fixed. The two ends of the silica gel covering layer extend into the neck hanging section and the fan section. The two aluminum plates are symmetrically arranged at the two ends of the neck hanging section, the overall bending degree and the direction of the fan section are adjusted through bending and twisting of the aluminum plates, each aluminum plate is of a flat structure and has a certain thickness, shaping after bending and twisting is facilitated, on one hand, the external silica gel covering layer plays a role in protecting the internal aluminum plate, and on the other hand, the external silica gel covering layer plays a role in protecting the external silica gel covering layer. On the other hand, the connecting ends of the neck hanging section and the fan section are sealed, so that sweat is prevented from entering and influencing an internal circuit.

Description

Technical Field

[0001] The utility model relates to the technical field of wearable electrical appliances, in particular to a neck-hanging fan for providing wind blowing and cooling on the body. Background Art

[0002] In recent years, with the development and application of new technologies, various portable fans have appeared on the market, including hand-held fans, small desktop fans, and neck fans that can be hung directly on the neck.

[0003] The neck-hanging fan provides the user with vertical airflow on both sides of the face by blowing air vertically on both sides of the neck, taking away the heat from the neck and face, thereby achieving a breeze and a cool feeling. In hot weather, the neck and chin are both areas that are prone to sweating and where facial sweat gathers downward. The sweat can evaporate quickly under the blowing of the neck-hanging fan. The process of sweat evaporating makes the user feel cooler. Therefore, this type of product has been loved by consumers, especially young consumers, as soon as it was launched.

[0004] After all, as an emerging product, there are still certain problems in the design of structural details. After use, it was found that the shape adjustment and shaping of some neck-hanging fans after adjustment are not very convenient, which affects the adjustment and control of the blowing airflow. In addition, the control of some airflow is not very ideal, resulting in inaccurate control of the air outlet direction and unsatisfactory airflow speed. It is necessary to modify and improve the machine. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems and provide a neck hanging fan and a drill bit thereof.

[0006] The technical solution of the utility model is:

[0007] A neck hanging fan, which is C-shaped as a whole, comprises an arc-shaped neck hanging section in the middle and fan sections on both sides, and the neck hanging section and the fan sections are connected by an adjustment device, and the adjustment device comprises an aluminum plate located in the core and a silicone covering layer wrapped on the outside of the aluminum plate, the width direction of the aluminum plate matches the width direction of the neck hanging section, one end of the aluminum plate is inserted into the inside of the neck hanging section and fixed with the neck hanging section, the other end of the aluminum plate is inserted into the inside of the fan section and fixed with the fan section, and the two ends of the silicone covering layer extend to the inside of the neck hanging section and the fan section. Two aluminum plates are symmetrically arranged at the two ends of the neck hanging section, and the overall bending degree and the orientation of the fan section are adjusted by bending and twisting the aluminum plates. The aluminum plate is a flat structure and has a certain thickness, which is conducive to shaping after bending and twisting. The external silicone covering layer protects the internal aluminum plate on the one hand, and seals the connection ends of the neck hanging section and the fan section on the other hand to prevent sweat from entering and affecting the internal circuit.

[0008] Preferably, the end of the neck section is the bevel end A, and the connecting end of the fan section is the bevel end B. The bevel end A and the center line direction of the neck section form an angle α, 30°≤α≤60°, and the inclination direction of the bevel end A matches the inclination direction of the bevel end B.

[0009] Preferably, the neck hanging section includes an inner shell and an outer shell, the two ends of the outer shell are provided with screw cylinders A, the two ends of the inner shell are provided with corresponding screw cylinders B, the upper end of the aluminum plate is clamped between screw cylinders A and B, the fixing screw passes through screw cylinder B and is screwed into screw cylinder A to fix the two shells and the ends of the aluminum plate, and the inner shell and the outer shell are provided with corresponding hooks and tongues. The combination of screw and buckle structure for installation is convenient for installation and also achieves firmness after installation at the end.

[0010] Preferably, the fan section is an arc-shaped section bending inward, and the fan section includes an inner airflow guide shell and an outer side cover body. A circular fan chamber and a long strip-shaped guide channel connected to the fan chamber are provided inside the airflow guide shell. The fan chamber is located inside the lower section of the airflow guide shell. The guide channel leads out from the fan chamber and extends along the part close to the upper side surface of the airflow guide shell to the end where the fan section is connected to the aluminum plate. The guide channel distributes the wind sent by the fan along the length direction, and then discharges it through the strip-shaped air outlet to form a wind curtain that blows upward, thereby expanding the coverage area of ​​the wind and enhancing the cooling effect on the human neck and face.

[0011] A strip-shaped air outlet connected to the guide channel is provided on the upper edge of the airflow guide housing, and a wind control protrusion protruding inward is provided at the connection position between the fan chamber and the guide channel, so that the air outlet of the fan chamber is in a whistle shape. The wind control protrusion has a certain ability to increase pressure and speed. The air outlets of most fans are tangent to the guide surface for air outlet, and do not have the wind control protrusion. A centrifugal fan is provided in the fan chamber, and an air inlet grid is provided on the airflow guide housing at the end face of the fan chamber.

[0012] Preferably, the inner surface of the side cover body is provided with a circular fan chamber cover ring corresponding to the fan chamber on the inner surface of the airflow guide housing, and a cover rib corresponding to the guide channel, and a fan mounting seat is provided in the middle of the fan chamber cover ring, and the centrifugal fan is mounted on the mounting seat. The side cover plate structure matches the airflow guide housing structure to form a complete fan chamber and guide channel.

[0013] Preferably, an auxiliary air inlet inclined downward is provided on the outer side surface of the lower section of the side cover body.

[0014] Preferably, the guide channel is inclined upward after being led out from the fan chamber to form a gradually shrinking structure. The centrifugal fan takes in air from both sides, balancing the axial forces on both sides of the fan, and reducing the vibration or movement of the lower end of the fan section due to the unbalanced axial force of the fan. Since the air outlet is on the side of the guide channel, the air volume in the guide channel is gradually reduced, so the pressure and wind speed of the air flow are increased by the gradually shrinking air duct, reducing the wind force at the tail of the air duct, reducing the wind speed, and causing the problem of uneven distribution of the outlet air flow.

[0015] Preferably, 2-4 partition inserts are evenly distributed along the edge of the air outlet of the airflow guide housing, and the corresponding edge of the side cover body extends with corresponding positions and numbers of inclined partitions, and the ends of the inclined partitions are inserted into the corresponding partition sleeves. The matching installation structure of the partitions and the partition sleeves is used to solve the problem of relatively stable structure between the airflow guide housing and the side cover at the long strip air outlet to avoid deformation under pressure, and on the other hand, the inclined arrangement of the partitions is used to guide the airflow upward to turn into vertical wind, thereby improving the covering effect of blowing.

[0016] Preferably, the lower edges of the airflow guide shell and the side cover plate are provided with corresponding tongues and hooks, and are connected to each other through the tongues and hooks. The inner surface of one end of the airflow guide shell close to the neck section is provided with a screw column C, and the inner surface of the corresponding side cover plate is provided with a screw column D. The lower end of the aluminum plate is clamped between screw columns C and D, and the fixing screw passes through screw column C and is screwed into screw column D to fix the airflow guide shell, the side cover plate and the end of the aluminum plate.

[0017] The utility model neck hanging fan comprises an arc neck hanging section in the middle and fan sections on both sides, the neck hanging section and the fan sections are connected by an adjustment device, the adjustment device comprises an aluminum plate located in the core and a silicone covering layer wrapped on the outside of the aluminum plate, the two ends of the aluminum plate are respectively inserted into the neck hanging section and the fan section for installation and fixation, and the two ends of the silicone covering layer extend to the inside of the neck hanging section and the fan section. Two aluminum plates are symmetrically arranged at the two ends of the neck hanging section, and the overall bending degree and the orientation of the fan section are adjusted by bending and twisting the aluminum plates. The aluminum plate is a flat structure and has a certain thickness, which is conducive to shaping after bending and twisting. The external silicone covering layer protects the internal aluminum plate on the one hand, and seals the connection ends of the neck hanging section and the fan section on the other hand to prevent sweat from entering and affecting the internal circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view of the neck hanging fan in the first embodiment;

[0019] Figure 2 for Figure 1 Left view structural diagram;

[0020] Figure 3 for Figure 2AA cross-sectional structural diagram;

[0021] Figure 4 This is one of the three-dimensional structural schematic diagrams of the neck hanging fan in the first embodiment;

[0022] Figure 5 This is the second schematic diagram of the three-dimensional structure of the neck hanging fan in the first embodiment;

[0023] Figure 6 It is a schematic diagram of the main structure of the fan section of the neck hanging fan;

[0024] Figure 7 for Figure 6 Schematic diagram of the three-dimensional structure;

[0025] Figure 8 for Figure 6 One of the three-dimensional structural diagrams of the mid-air flow guide housing;

[0026] Fig. 9 for Figure 6 The second schematic diagram of the three-dimensional structure of the mid-air flow guide housing;

[0027] Fig.10 for Figure 6 One of the three-dimensional structural diagrams of the middle side cover;

[0028] Fig.11 for Figure 6 The second schematic diagram of the three-dimensional structure of the middle side cover;

[0029] Fig.12 It is a top view structural schematic diagram of the neck hanging section and the adjustment device of the neck hanging fan;

[0030] Fig.13 for Fig.12 BB cross-sectional structure diagram;

[0031] Fig.14 for Fig.12 Schematic diagram of the three-dimensional structure;

[0032] Fig.15 for Fig.12 A schematic diagram of the three-dimensional structure of the inner shell;

[0033] Fig.16 for Fig.12 A schematic diagram of the three-dimensional structure of the outer shell in FIG.

[0034] Fig.17 It is a schematic diagram of the three-dimensional structure of the silicone covering layer;

[0035] Fig.18 Schematic diagram of the three-dimensional structure of the aluminum plate;

[0036] In the figure:

[0037] 1. Neck section, 2. Fan section, 3. Adjustment device,

[0038] 11. Inner shell, 111. Screw column B, 112. Tab,

[0039] 12. Outer shell, 121. Screw column A, 122. Hook, 13. Screw,

[0040] 31. Silicone cover, 32. Aluminum plate,

[0041] 21. air flow guide housing, 211. fan chamber, 212. wind control protrusion, 213. air flow guide channel, 214. partition plate sleeve, 215. latch, 216. screw column C;

[0042] 22. side cover body, 221. fan mounting seat, 222. fan chamber cover ring, 223. cover rib, 224. screw column, 225. partition, 226. hook;

[0043] 23. Strip air outlet, 24. Air inlet grille, 25. Auxiliary air inlet. DETAILED DESCRIPTION

[0044] Example 1: See Figure 1-5 , Figure 12-18 The figure shows a neck hanging fan, which is C-shaped as a whole. The neck hanging fan includes an arc-shaped neck hanging section 1 in the middle and fan sections 2 on both sides. The neck hanging section 1 and the fan section 2 are connected by an adjustment device 3. The adjustment device 3 includes an aluminum plate 32 located at the core and a silicone covering layer 31 wrapped around the outside of the aluminum plate 32. The width direction of the aluminum plate 32 matches the width direction of the neck hanging section 1. One end of the aluminum plate 32 is inserted into the interior of the neck hanging section 1 and fixed to the neck hanging section 1. The other end of the aluminum plate 32 is inserted into the interior of the fan section 2 and fixed to the fan section 2. Both ends of the silicone covering layer 31 extend to the inside of the neck hanging section 1 and the fan section 2. Two aluminum plates 32 are symmetrically arranged at both ends of the neck section 1. The overall bending degree and the orientation of the fan section 2 are adjusted by bending and twisting the aluminum plates 32. The aluminum plates 32 are flat structures and have a certain thickness, which is conducive to shaping after bending and twisting. The external silicone covering layer 31 protects the internal aluminum plates 32 on the one hand, and seals the connection ends of the neck section 1 and the fan section 2 on the other hand to prevent sweat from entering and affecting the internal circuit.

[0045] The end of the neck section 1 is the inclined surface end A, and the connecting end of the fan section 2 is the inclined surface end B. The inclined surface end A and the center line direction of the neck section 1 form an angle α, 30°≤α≤60°, and the inclined surface end A matches the inclined surface end B in inclination direction.

[0046] The neck hanging section 1 comprises an inner shell 11 and an outer shell 12, screw cylinders A 121 are provided inside the two ends of the outer shell 12, corresponding screw cylinders B 111 are provided at the two ends of the inner shell 11, the upper end of the aluminum plate 32 is clamped between the screw cylinders A 121 and B, and the fixing screws 13 pass through the screw cylinders B 111 and are screwed into the screw cylinders A 121 to fix the two shells and the ends of the aluminum plate 32, and the inner shell 11 and the outer shell 12 are provided with corresponding hooks 122 and tongues 112. The combination of the screws 13 and the buckle structure for installation not only has the convenience of installation, but also realizes the firmness after installation at the ends.

[0047] Usage process:

[0048] When in use, the neck-hanging fan is hung on the person's neck, with the neck-hanging section 1 located at the back of the person's neck and the fan section 2 located on both sides of the lower chin. According to the face shape of different people, the fan section 2 is held to bend or twist the aluminum plate 32 inside the adjustment device 3 and adjust the direction of the fan outlet to achieve the best blowing effect. The aluminum plate 32 itself has an adjusted shaping effect and is symmetrically arranged at both ends of the neck-hanging section 1 in a preferred bending position, which is more conducive to bending adjustment. The silicone covering layer 31 provides a soft appearance to enhance comfort.

[0049] Example 2: See Figure 1-11 The figure shows a neck hanging fan, which is C-shaped as a whole. The neck hanging fan includes an arc-shaped neck hanging section 1 in the middle and fan sections 2 on both sides. The neck hanging section 1 and the fan section 2 are connected by an adjustment device 3. The adjustment device 3 includes an aluminum plate 32 located at the core and a silicone covering layer 31 wrapped around the outside of the aluminum plate 32. The width direction of the aluminum plate 32 matches the width direction of the neck hanging section 1. One end of the aluminum plate 32 is inserted into the interior of the neck hanging section 1 and fixed to the neck hanging section 1. The other end of the aluminum plate 32 is inserted into the interior of the fan section 2 and fixed to the fan section 2. Both ends of the silicone covering layer 31 extend to the inside of the neck hanging section 1 and the fan section 2. Two aluminum plates 32 are symmetrically arranged at both ends of the neck section 1. The overall bending degree and the orientation of the fan section 2 are adjusted by bending and twisting the aluminum plates 32. The aluminum plates 32 are flat structures and have a certain thickness, which is conducive to shaping after bending and twisting. The external silicone covering layer 31 protects the internal aluminum plates 32 on the one hand, and seals the connection ends of the neck section 1 and the fan section 2 on the other hand to prevent sweat from entering and affecting the internal circuit.

[0050] The fan section 2 is an arc-shaped body that bends inwards. The fan section 2 includes an inner airflow guide shell 21 and an outer side cover body 22. A circular fan chamber 211 and a long strip-shaped guide channel 213 connected to the fan chamber 211 are provided inside the airflow guide shell 21. The fan chamber 211 is located inside the lower section of the airflow guide shell 21. The guide channel 213 is led out from the fan chamber 211 and extends along the part close to the upper side of the airflow guide shell 21 to the end where the fan section 2 is connected to the aluminum plate 32. The guide channel 213 distributes the wind sent by the fan along the length direction, and then discharges it through the strip-shaped air outlet 23 to form a wind curtain that blows upward, thereby expanding the coverage area of ​​the wind and enhancing the cooling effect on the human neck and face.

[0051] A strip-shaped air outlet 23 connected to the guide channel 213 is provided on the upper edge of the airflow guide housing 21, and a wind control protrusion 212 protruding inward is provided at the portion where the fan chamber 211 is connected to the guide channel 213, so that the air outlet portion of the fan chamber 211 is in a whistle shape. The wind control protrusion 212 has a certain ability to increase pressure and speed. The air outlets of most fans are tangent to the guide surface for air outlet, and do not have the wind control protrusion 212. A centrifugal fan 26 is provided in the fan chamber 211, and an air inlet grille 24 is provided on the airflow guide housing 21 at the inner end surface of the fan chamber 211.

[0052] The inner surface of the side cover body 22 is provided with a circular fan chamber cover ring 222 corresponding to the fan chamber 211 on the inner surface of the airflow guide housing 21, and a cover rib 223 corresponding to the guide channel 213. A fan mounting seat 221 is provided in the middle of the fan chamber cover ring 222, and the centrifugal fan 26 is mounted on the mounting seat. The side cover plate structure matches the structure of the airflow guide housing 21 to form a complete fan chamber 211 and guide channel 213.

[0053] An auxiliary air inlet 25 inclined downward is provided on the outer side surface of the lower section of the side cover body 22 .

[0054] The guide channel 213 is led out from the fan chamber 211 and then tilts upward to form a gradually shrinking structure. The centrifugal fan 26 takes in air from both sides, balancing the axial forces on both sides of the fan, and reducing the vibration or movement of the lower end of the fan section 2 due to the unbalanced axial force of the fan. Since the air outlet is on the side of the guide channel 213, the air volume in the guide channel 213 is gradually reduced, so the pressure and wind speed of the air flow are increased by the gradually shrinking air duct, reducing the wind force at the tail of the air duct, reducing the wind speed, and causing the problem of uneven distribution of the air flow.

[0055] 2-4 partition plates 225 insert sleeves 214 are evenly distributed along the edge of the air outlet of the airflow guide housing 21, and the corresponding position and number of inclined partition plates 225 extend from the corresponding edge of the side cover 22, and the ends of the inclined partition plates 225 are inserted into the corresponding partition plate 225 sleeves. The matching installation structure of the partition plates 225 and the partition plate 225 sleeves is used to solve the problem of relatively stable structure between the airflow guide housing 21 and the side cover plate at the long strip air outlet 23 to avoid deformation under pressure, and on the other hand, the partition plates 225 are arranged obliquely to guide the airflow upward to turn into vertical wind, thereby improving the covering effect of blowing.

[0056] The lower edges of the airflow guide housing 21 and the side cover plate are provided with corresponding latches 215 and hooks 226, and are connected to each other through the latches 215 and the hooks 226. The inner surface of one end of the airflow guide housing 21 close to the neck section 1 is provided with a screw column C 216, and the inner surface of the corresponding side cover plate is provided with a screw column D 224. The lower end of the aluminum plate 32 is clamped between the screw columns C and D, and the fixing screw 13 passes through the screw column C and is screwed into the screw column D to fix the airflow guide housing 21, the side cover plate and the end of the aluminum plate 32.

[0057] When the neck-hanging fan is in use, as the internal centrifugal fan 26 rotates, the air entering from the air inlet grille 24 and the auxiliary air inlet 25 is thrown out by the fan into the guide channel 213, and the amount of gas blown out in the guide channel 213 gradually decreases. At the same time, the pressure and speed are gradually increased through the gradually reduced space, thereby ensuring the pressure and speed of the wind blown out at the tail of the guide channel 213 and controlling the air outlet balance of the strip air outlet 23.

[0058] Example 3: See Figure 1-18 , Embodiment 3 is a superposition combination of Embodiments 1 and 2, and the specific contents of the solution will not be repeated. The method of use thereof can refer to Embodiments 1 and 2.

Claims

1. A neck hanging fan, which is C-shaped as a whole, comprises an arc-shaped neck hanging section in the middle and fan sections on both sides, and the neck hanging section and the fan sections are connected by an adjustment device, and is characterized by: The adjustment device includes an aluminum plate located at the core and a silicone covering layer wrapped around the outside of the aluminum plate. The width direction of the aluminum plate matches the width direction of the neck section. One end of the aluminum plate is inserted into the interior of the neck section and fixed to the neck section. The other end of the aluminum plate is inserted into the interior of the fan section and fixed to the fan section. Both ends of the silicone covering layer extend to the interior of the neck section and the fan section.

2. The neck hanging fan according to claim 1 is characterized in that: The neck hanging section includes an inner shell and an outer shell. Screw cylinders A are provided inside the two ends of the outer shell, and corresponding screw cylinders B are provided at the two ends of the inner shell. The upper end of the aluminum plate is clamped between screw cylinders A and B. The fixing screw passes through screw cylinder B and is screwed into screw cylinder A to fix the two shells and the ends of the aluminum plate. Corresponding hooks and tongues are provided on the inner shell and the outer shell.

3. The neck hanging fan according to claim 1 is characterized in that: The fan section is in the shape of an arc that bends inwardly, and the fan section includes an inner airflow guide shell and an outer side cover body. A circular fan chamber and an elongated air guide channel connected to the fan chamber are provided inside the airflow guide shell. The fan chamber is located inside the lower section of the airflow guide shell, and the air guide channel leads out from the fan chamber and extends along the part close to the upper side surface of the airflow guide shell to the end where the fan section is connected to the aluminum plate. An elongated air outlet connected to the air guide channel is provided on the upper edge of the airflow guide shell, and a wind control protrusion protruding inwardly is provided at the position where the fan chamber is connected to the air guide channel so that the air outlet portion of the fan chamber is in the shape of a whistle. A centrifugal fan is provided in the fan chamber, and an air inlet grille is provided on the airflow guide shell on the end face of the fan chamber.

4. The neck hanging fan according to claim 3 is characterized in that: The inner surface of the side cover body is provided with a circular fan chamber cover ring corresponding to the fan chamber on the inner surface of the airflow guide housing, and a cover rib corresponding to the guide channel. A fan mounting seat is provided in the middle of the fan chamber cover ring, and the centrifugal fan is mounted on the mounting seat.

5. The neck hanging fan according to claim 4 is characterized in that: An auxiliary air inlet inclined downward is arranged on the outer side surface of the lower section of the side cover body.

6. The neck hanging fan according to claim 3 is characterized in that: The guide channel is led out from the fan chamber and then tilts upward to present a gradually shrinking structure.

7. The neck hanging fan according to claim 3 is characterized in that: 2-4 partition insert sleeves are evenly distributed along the edge of the air outlet of the airflow guide shell, and corresponding positions and numbers of inclined partitions extend from the corresponding edges of the side cover body, and the ends of the inclined partitions are inserted into the corresponding partition sleeves.

8. The neck hanging fan according to claim 7, characterized in that: The lower edges of the airflow guide shell and the side cover plate are provided with corresponding tongues and hooks, and are connected to each other through the tongues and hooks. The inner surface of one end of the airflow guide shell close to the neck section is provided with a screw column C, and the inner surface of the corresponding side cover plate is provided with a screw column D. The lower end of the aluminum plate is clamped between screw columns C and D, and the fixing screw passes through screw column C and is screwed into screw column D to fix the airflow guide shell, the side cover plate and the end of the aluminum plate.

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