Neck-hung fan

Abstract

The utility model discloses a neck hanging fan which comprises a neck hanging piece and two fan assemblies detachably connected to the two opposite ends of the neck hanging piece, the whole neck hanging piece is in a C shape or a U shape, the structure mirror images of the two fan assemblies are the same, and the neck hanging piece is made of PCM materials. The neck hanging piece and the fan assemblies are arranged in a split mode and detachably connected, and when any fan assembly breaks down, only the fan assembly with the fault needs to be replaced; the two fan assemblies can operate independently, the on-off state can be freely selected, and the fan can be suitable for more different application scenes; the fan assembly can be independently used as a handheld fan after being detached, and is very practical; the neck hanging piece is made of the PCM material, has a heat storage effect, and can absorb heat of a human body after being in contact with the skin of the human body in use, so that the neck hanging piece is more comfortable to wear.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of small electric appliances, in particular to a neck-hung fan. BACKGROUND

[0002] Traditional fans need to be plugged in for use, are inconvenient to carry and have limited use scenarios, are not suitable for outdoor use, and are not suitable for places without sockets. For this reason, someone has invented a handheld fan with a battery, which is convenient to carry and can be used in an environment without electricity. However, the handheld fan needs to occupy one hand, greatly limiting the convenience of the user in performing other activities while using the fan, such as being difficult to freely operate a mobile phone, flip through a book, or carry objects while holding the handheld fan. In order to solve this problem, someone has invented a neck-hung fan.

[0003] The structure of neck-hung fans on the market is various, such as the neck-hung fan provided by the utility model patent with application number 202120504721.1, the neck-hung fan provided by the utility model patent with application number 202121189333.5, and the neck-hung fan provided by the utility model patent with application number 202320153191.X. These neck-hung fans have multiple air outlets, can cool the chest, neck, face, and other parts of the human body, can effectively convect heat at the back of the user's neck through an air flow channel, overcoming the stuffy feeling caused by some neck-hung fans being attached to the back of the user's neck, and can adjust the opening angle of the two air supply mechanisms relative to the neck-wearing part, suitable for different users, and more stable to wear.

[0004] However, the neck-hung part and the fan assembly of the above three kinds of neck-hung fans are integrally provided, and once any fan assembly fails, such as motor damage or fan blade deformation, it is not only inconvenient to repair, but often needs to replace the entire device, causing resource waste. Moreover, the fan assembly cannot be used alone, and the use scenario is limited. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a neck-hung fan, aiming to improve the problem that the neck-hung part and the fan assembly of the existing neck-hung fan are integrally provided, causing inconvenience in repair, resource waste, and the fan assembly cannot be used alone.

[0006] The utility model is implemented in the following manner: a neck-hung fan includes a neck-hung part and two fan assemblies that are detachably connected to opposite ends of the neck-hung part, the structures of the two fan assemblies are mirror images of each other, and the neck-hung part is made of PCM material.

[0007] Further, the fan assembly comprises a housing, a circuit board arranged in the housing, a battery and a fan, the neck hanging piece is detachably connected with the housing, and the housing is provided with an air inlet and an air outlet; the battery and the fan are electrically connected with the circuit board, and the battery supplies power for the fan and the circuit board.

[0008] Further, the circuit board is provided with a charging socket for charging the battery, the housing is provided with a socket hole corresponding to the position of the charging socket, and the charging socket is located in the socket hole.

[0009] Further, the circuit board is provided with a control button for controlling the start and stop of the fan and the gear, the housing is provided with a button hole corresponding to the position of the control button and matched with the key cap of the control button, and the key cap of the control button is located in the button hole.

[0010] Further, the housing comprises an upper housing and a lower housing, and the upper housing and the lower housing are detachably connected through screws.

[0011] Further, the lower housing is provided with a plurality of first connecting columns, and the upper housing is provided with a plurality of second connecting columns corresponding to the first connecting columns one by one; the first connecting column is provided with a connecting through hole, and the second connecting column is provided with a connecting threaded hole; the screw is located in the connecting through hole of the first connecting column, and the threaded shank of the screw passes through the connecting through hole of the first connecting column and is screwed into the connecting threaded hole of the second connecting column, so as to connect the upper housing and the lower housing into one whole.

[0012] Further, the lower housing is provided with a first partition plate and a second partition plate, the first partition plate divides the inner cavity of the lower housing into a first accommodating cavity and a second accommodating cavity, the first accommodating cavity is a fan mounting cavity for mounting the fan, and the second partition plate divides the second accommodating cavity into an electrical element mounting cavity and a neck hanging piece connecting cavity, the circuit board and the battery are arranged in the electrical element mounting cavity, and the end of the neck hanging piece is connected in the neck hanging piece connecting cavity.

[0013] Further, the upper housing is provided with a third partition plate and a fourth partition plate, the third partition plate and the fourth partition plate correspond to the first partition plate and the second partition plate respectively, and the third partition plate and the fourth partition plate have the same functions as the first partition plate and the second partition plate respectively.

[0014] Further, the hanging neck piece is in a C shape or a U shape as a whole, the end of the hanging neck piece is inserted into the hanging neck piece connecting cavity of the shell body and is fixed by the fixing piece, a fixing through hole is arranged on the bottom wall of the hanging neck piece connecting cavity of the lower shell body, a sleeve is arranged on the top wall of the hanging neck piece connecting cavity of the upper shell body and corresponds to the position of the fixing through hole, the end of the hanging neck piece is provided with a mounting hole, the fixing piece is provided with a positioning rod part, the positioning rod part is sequentially inserted into the fixing through hole, the mounting hole and the sleeve, and then the hanging neck piece and the fan assembly are connected and fixed.

[0015] Further, the outer bottom wall of the lower shell body at the position of the fixing through hole is provided with a containing groove, the fixing piece is further provided with a dismounting head part, a limiting part, a first magnetic attraction part and a second magnetic attraction part, the dismounting head part and the second magnetic attraction part are respectively located at the two ends of the positioning rod part, the second magnetic attraction part is inserted into the sleeve, and the sleeve is provided with a structure that can be magnetically attracted to the second magnetic attraction part, the positioning rod part penetrates through the limiting part and the first magnetic attraction part, and the first magnetic attraction part is located between the dismounting head part and the limiting part, the first magnetic attraction part is in a circular ring shape, the limiting part is in a circular truncated cone shape, and the limiting part and the first magnetic attraction part share a common central axis with the positioning rod part, the outer diameter of the first magnetic attraction part is the same as the hole diameter of the fixing through hole of the lower shell body, when the fixing piece is used, the first magnetic attraction part is inserted into the fixing through hole, and the hole wall of the fixing through hole is provided with a structure that can be magnetically attracted to the first magnetic attraction part, a dismounting groove in a circular ring shape is arranged between the dismounting head part and the second magnetic attraction part, the limiting slot with a diameter larger than the mounting hole is arranged on the hanging neck piece at the position of the mounting hole, and when the fixing piece is used, the limiting part is partially inserted into the limiting slot, so that the limiting of the hanging neck piece and the fan assembly during connection is realized.

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] 1、The hanging neck piece and the fan assembly of the utility model are separately arranged and can be detachably connected, when any fan assembly fails, only the fan assembly with failure needs to be replaced.

[0018] 2、The two fan assemblies of the utility model can independently operate, the on-off state can be freely selected, and the utility model can be applied to more different application scenarios.

[0019] 3、The fan assembly of the utility model can be used as a handheld fan after being dismounted, and is very practical.

[0020] 4、The hanging neck piece of the utility model is made of PCM material and has a temperature storage effect, after contacting the human skin during use, the PCM material can absorb the heat of the human body, so that the wearing is more comfortable. DRAWINGS

[0021] Figure 1It is the three-dimensional structure schematic view of the utility model under the top view angle;

[0022] Figure 2 It is the three-dimensional structure schematic view of the utility model under the bottom view angle;

[0023] Figure 3 It is the three-dimensional structure schematic view of the utility model when removing the upper shell;

[0024] Figure 4 It is the three-dimensional structure schematic view of the neck hanging piece of the utility model;

[0025] Figure 5 It is the three-dimensional structure schematic view of the fan assembly of the utility model;

[0026] Figure 6 It is the three-dimensional structure schematic view of the upper shell of the utility model;

[0027] Figure 7 It is the three-dimensional structure schematic view of the lower shell of the utility model;

[0028] Figure 8 It is the three-dimensional structure schematic view of the fixing piece of the utility model.

[0029] In the drawing: 1, neck hanging piece;11, mounting hole;12, limiting groove;2, fan assembly;21, circuit board;22, battery;23, fan;24, upper shell;241, second connecting column;242, third partition;243, fourth partition;244, sleeve;25, lower shell;251, first connecting column;252, first partition;253, second partition;254, fixed through hole;255, accommodating recess;26, charging socket;27, control button;3, fixing piece;31, positioning rod part;32, dismounting head part;33, limiting part;34, first magnetic attraction part;35, second magnetic attraction part;36, dismounting recess. DETAILED DESCRIPTION

[0030] In the utility model, unless another explicit provision and limitation, the terms "installation", "connection", "connect", "fix" and so on should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integral;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can indirectly connect through the intermediate medium, can be the communication of two elements or the interaction of two elements.For ordinary skilled in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model.

[0031] The following will be further explained in combination with the drawings and specific embodiments:

[0032] As Figure 1 And Figure 2As shown, a neck-hanging fan includes a neck-hanging piece 1 and two fan assemblies 2 detachably connected at opposite ends of the neck-hanging piece 1, and the two fan assemblies 2 are mirror images of each other. The neck-hanging piece 1 is made of PCM material, and PCM is the English abbreviation of Phase Change Material. Phase Change Material is a kind of material that can absorb, store or release a large amount of heat when the temperature changes. PCM is mainly composed of two different materials, one is the matrix material, and the other is the phase change substance. The matrix material is usually a substance with good thermal conductivity and structural strength, which is used to fix and support the phase change substance, and the shell structure of the neck-hanging piece 1 is made of the matrix material. Common matrix materials include metals, ceramics, polymers, etc. The phase change substance refers to a substance that can undergo phase change within a certain temperature range, and the inside of the neck-hanging piece 1 is filled with the phase change substance. The phase change of the phase change substance can be a melting phase change from solid to liquid, or a solidification phase change from liquid to solid. Common phase change substances include phase change wax (such as paraffin wax, beeswax), phase change salt (such as sodium chloride, potassium nitrate), etc. The neck-hanging piece 1 is in the shape of C or U. When the utility model is used, the neck-hanging piece 1 is hung on the neck of the human body. Since the neck-hanging piece 1 is made of PCM material, it has a temperature storage effect. The effect is better when the neck-hanging piece 1 is frozen in the refrigerator, and it can also absorb human body heat when it comes into contact with the human body during use, making it more comfortable to wear.

[0033] As shown in Figure 5 , Figure 6 and Figure 7 , the fan assembly 2 includes a shell, and the shell includes an upper shell 24 and a lower shell 25, and the upper shell 24 and the lower shell 25 are detachably connected by screws. A plurality of first connecting columns 251 are provided on the lower shell 25, and a plurality of second connecting columns 241 corresponding to the first connecting columns 251 are provided on the upper shell 24. The first connecting column 251 is provided with a connecting through hole, and the second connecting column 241 is provided with a connecting threaded hole. The screw is located in the connecting through hole of the first connecting column 251, and the threaded rod of the screw passes through the connecting through hole of the first connecting column 251 and is screwed into the connecting threaded hole of the second connecting column 241, thereby connecting the upper shell 24 and the lower shell 25 into one body. The outer surface of the upper shell 24 and the lower shell 25 should be smooth without sharp corners to avoid scratching the human body.

[0034] As shown in Figure 3 , Figure 6 and Figure 7As shown, the lower shell 25 is provided with a first partition plate 252 and a second partition plate 253. The first partition plate 252 divides the inner cavity of the lower shell 25 into a first accommodating cavity and a second accommodating cavity. The first accommodating cavity is a fan mounting cavity, and the fan 23 is mounted in the first accommodating cavity. The upper shell 24 and the lower shell 25 are provided with an air inlet and an air outlet at positions corresponding to the fan mounting cavity. The second partition plate 253 divides the second accommodating cavity into an electrical element mounting cavity and a neck hanging piece connecting cavity. The circuit board 21 and the battery 22 are mounted in the electrical element mounting cavity. The battery 22 and the fan 23 are electrically connected to the circuit board 21, and the battery 22 supplies power to the fan 23 and the circuit board 21. The upper shell 24 is provided with a third partition plate 242 and a fourth partition plate 243. The third partition plate 242 and the fourth partition plate 243 correspond to the first partition plate 252 and the second partition plate 253, respectively, and have the same function as the first partition plate 252 and the second partition plate 253. That is, the third partition plate 242 and the fourth partition plate 243 also divide the inner cavity of the upper shell 24 into a fan mounting cavity, an electrical element mounting cavity and a neck hanging piece connecting cavity.

[0035] As Figures 2-4 , Figures 6-8As shown, the end of the neck hanging piece 1 is connected in the neck hanging piece connecting cavity and is fixed by the fixing piece 3. The bottom wall of the neck hanging piece connecting cavity of the lower shell 25 is provided with a fixed through hole 254, and the top wall of the neck hanging piece connecting cavity of the upper shell 24 is provided with a sleeve 244 at a position corresponding to the fixed through hole 254. The end of the neck hanging piece 1 is provided with a mounting hole 11, and the fixing piece 3 has a positioning rod portion 31 which is inserted into the sleeve 244 through the fixed through hole 254 and the mounting hole 11 in sequence, thereby connecting and fixing the neck hanging piece 1 and the fan assembly 2. The outer bottom wall of the lower shell 25 at the position of the fixed through hole 254 is provided with a containing groove 255, and the fixing piece 3 further has a dismounting head portion 32, a limiting portion 33, a first magnetic attraction portion 34 and a second magnetic attraction portion 35. The dismounting head portion 32 and the second magnetic attraction portion 35 are respectively located at both ends of the positioning rod portion 31, and the second magnetic attraction portion 35 is inserted into the sleeve 244, and the sleeve 244 is provided with a structure which is magnetically attracted to the second magnetic attraction portion 35. The positioning rod portion 31 penetrates through the limiting portion 33 and the first magnetic attraction portion 34, and the first magnetic attraction portion 34 is located between the dismounting head portion 32 and the limiting portion 33. The first magnetic attraction portion 34 is circular ring-shaped, the limiting portion 33 is circular truncated cone-shaped, and the limiting portion 33 and the first magnetic attraction portion 34 have a common central axis with the positioning rod portion 31. The outer diameter of the first magnetic attraction portion 34 is the same as the hole diameter of the fixed through hole 254 of the lower shell 25, and when the fixing piece 3 is used, the first magnetic attraction portion 34 is inserted into the fixed through hole 254, and the hole wall of the fixed through hole 254 is provided with a structure which is magnetically attracted to the first magnetic attraction portion 34. The dismounting head portion 32 and the second magnetic attraction portion 35 are provided with a circular ring-shaped dismounting groove 36 for dismounting the fixing piece 3, and the dismounting of the fixing piece 3 is achieved by clamping the dismounting groove 36 with fingers. The neck hanging piece 1 is provided with a limiting groove 12 with a diameter larger than the mounting hole 11 at a position corresponding to the mounting hole 11, and when the fixing piece 3 is used, the limiting portion 33 is partially inserted into the limiting groove 12, thereby limiting the connection of the neck hanging piece 1 and the fan assembly 2 and preventing shaking therebetween.

[0036] Through the above technical solution, the fixing piece 3 is magnetically attracted to the upper shell 24 and the lower shell 25 respectively, the connection is stable enough, and the dismounting is very convenient. In addition to the above connection mode, the fixing piece 3 can also be connected to the neck hanging piece 1 by clamping or screwing to connect the neck hanging piece 1 and the fan assembly 2 as a whole. However, the dismounting is very laborious when clamping, and the dismounting is not convenient enough when screwing. Compared with the above two modes, the double magnetic attraction connection mode is the most convenient to use.

[0037] As Figure 1 and Figure 3As shown, the circuit board 21 is provided with a charging socket 26 for charging the battery 22, and the housing is provided with a socket corresponding to the position of the charging socket 26, and the charging socket 26 is located in the socket. The circuit board 21 is provided with a control button 27 for controlling the start and stop of the fan 23 and the gear, and the housing is provided with a button hole corresponding to the position of the control button 27, and the key cap of the control button 27 is located in the button hole. The control button 27 has the functions of start-stop control and gear control, for example, the fan 23 has three gears, when it is in the off state, press the control button 27 once, the fan 23 starts at low gear, press the control button 27 again, the gear of the fan 23 is adjusted to medium, press the control button 27 again, the gear of the fan 23 is adjusted to high, and finally press the control button 27 again, the fan 23 is turned off.

[0038] In summary, the neck hanging piece 1 and the fan assembly 2 of the utility model are separately arranged and detachably connected, when any one of the fan assemblies 2 fails, only the faulty fan assembly 2 needs to be replaced. The two fan assemblies 2 of the utility model can independently operate, and the on-off state can be freely selected, so that more different application scenarios can be applied. The fan assembly 2 can be used as a handheld fan after being detached, which is very practical. The neck hanging piece 1 is made of PCM material, has a temperature storage effect, and can absorb human body heat after being in contact with human skin during use, so that wearing is more comfortable.

[0039] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A neck fan, characterized in that, It includes a neck hanger (1) and two fan assemblies (2) detachably connected to opposite ends of the neck hanger (1). The two fan assemblies (2) have the same structure. The neck hanger (1) is made of PCM material.

2. A neck fan according to claim 1, characterized in that, The fan assembly (2) includes a housing, a circuit board (21) disposed in the housing, a battery (22) and a fan (23). The neck hanger (1) is detachably connected to the housing. The housing is provided with an air inlet and an air outlet. The battery (22) and the fan (23) are both electrically connected to the circuit board (21). The battery (22) supplies power to the fan (23) and the circuit board (21).

3. A neck fan according to claim 2, characterized in that, The circuit board (21) is provided with a charging socket (26) for charging the battery (22), and the housing is provided with a socket corresponding to the position of the charging socket (26), and the charging socket (26) is located in the socket.

4. A neck fan according to claim 2, characterized in that, The circuit board (21) is provided with a control button (27) for controlling the start and stop of the fan (23) and the speed. The housing is provided with a key hole that matches the keycap of the control button (27) at the position corresponding to the control button (27). The keycap of the control button (27) is located in the key hole.

5. A neck fan according to claim 2, characterized in that, The housing includes an upper housing (24) and a lower housing (25), which are detachably connected by screws.

6. A neck fan according to claim 5, characterized in that, The lower housing (25) is provided with a plurality of first connecting posts (251), and the upper housing (24) is provided with a plurality of second connecting posts (241) corresponding one-to-one with each of the first connecting posts (251). The first connecting posts (251) are provided with connecting through holes, and the second connecting posts (241) are provided with connecting threaded holes. The screw is located in the connecting through hole of the first connecting post (251), and the threaded part of the screw passes through the connecting through hole of the first connecting post (251) and is screwed into the connecting threaded hole of the second connecting post (241), thereby connecting the upper housing (24) and the lower housing (25) into a whole.

7. A neck fan according to claim 5, characterized in that, The lower housing (25) is provided with a first partition (252) and a second partition (253). The first partition (252) divides the inner cavity of the lower housing (25) into a first accommodating cavity and a second accommodating cavity. The first accommodating cavity is a fan mounting cavity for mounting a fan (23). The second partition (253) divides the second accommodating cavity into an electrical component mounting cavity and a neck-hanging component connecting cavity. The circuit board (21) and the battery (22) are arranged in the electrical component mounting cavity, and the end of the neck-hanging component (1) is connected to the neck-hanging component connecting cavity.

8. A neck fan according to claim 7, characterized in that, The upper housing (24) is provided with a third partition (242) and a fourth partition (243), which correspond to the first partition (252) and the second partition (253) respectively, and the third partition (242) and the fourth partition (243) have the same function as the first partition (252) and the second partition (253).

9. A neck fan according to claim 8, characterized in that, The neck hanger (1) is C-shaped or U-shaped. The end of the neck hanger (1) is inserted into the neck hanger connection cavity of the housing and fixed by the fastener (3). The bottom wall of the neck hanger connection cavity of the lower housing (25) is provided with a fixing through hole (254). The top wall of the neck hanger connection cavity of the upper housing (24) is provided with a sleeve (244) corresponding to the fixing through hole (254). The end of the neck hanger (1) is provided with an installation hole (11). The fastener (3) has a positioning rod (31). The positioning rod (31) passes through the fixing through hole (254) and the installation hole (11) in sequence and is inserted into the sleeve (244) to connect and fix the neck hanger (1) to the fan assembly (2).

10. A neck fan according to claim 9, characterized in that, The lower housing (25) has a receiving groove (255) on its outer bottom wall at the location of the fixing through hole (254). The fixing member (3) also has a disassembly head (32), a limiting part (33), a first magnetic attraction part (34), and a second magnetic attraction part (35). The disassembly head (32) and the second magnetic attraction part (35) are located at the two ends of the positioning rod part (31), and the second magnetic attraction part (35) is inserted into the sleeve (244). The sleeve (244) is provided with a structure that magnetically attracts the second magnetic attraction part (35). The positioning rod part (31) passes through the limiting part (33) and the first magnetic attraction part (34), and the first magnetic attraction part (34) is located between the disassembly head (32) and the limiting part (33). The first magnetic attraction part (34) is annular, and the limiting part (33) is frustum-shaped. 3) The first magnetic suction part (34) and the positioning rod part (31) share the same central axis; the outer diameter of the first magnetic suction part (34) is the same as the diameter of the fixing through hole (254) of the lower housing (25). When the fixing part (3) is used, the first magnetic suction part (34) is inserted into the fixing through hole (254). The wall of the fixing through hole (254) is provided with a structure that can magnetically attract the first magnetic suction part (34); a circular disassembly groove (36) is provided between the disassembly head (32) and the second magnetic suction part (35); a limiting groove (12) with a diameter larger than the mounting hole (11) is provided on the neck hanger (1) at the position of its mounting hole (11). When the fixing part (3) is used, the limiting part (33) is partially inserted into the limiting groove (12) to realize the limiting when the neck hanger (1) is connected to the fan assembly (2).

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