Neck fan

Abstract

This invention provides a neck fan, comprising: a housing having an air inlet and an air outlet; a fan assembly housed within the housing, wherein an air inlet channel is formed between the air inlet and the fan assembly, and an air outlet channel is formed between the air outlet and the fan assembly; and a negative ion generator housed within the housing, the negative ion generator having an electronic release port, wherein the negative ion generator and the fan assembly are independently controlled. By incorporating the negative ion generator on the neck fan, impurities, dust, germs, etc., in the air are effectively removed, resulting in purer air and protecting user health. Since the negative ion generator and the fan assembly are independently controlled, the negative ion function can be used independently even when the fan is not in use, saving energy and increasing the product's reusability.

Description

Technical Field

[0001] This invention relates to the field of fan technology, and more specifically to a neck fan equipped with a negative ion generator. Background Technology

[0002] Common cooling devices such as air conditioners and floor fans cannot adequately meet the needs of outdoor activities or other daily life scenarios due to their weight and size. As a result, various portable fans have gradually appeared on the market. However, existing portable fans only have the function of driving airflow to remove heat from the surface of the human skin, thereby cooling down. The effect is poor and limited.

[0003] However, existing portable fans are small in size and can only carry a limited amount of air, so their cooling effect is not obvious. Furthermore, because they directly introduce outside air and then blow it out, they are prone to bringing in impurities, dust, and germs from the air. On the one hand, these impurities, dust, and germs are likely to remain inside the portable fan, affecting the airflow effect; on the other hand, these impurities, dust, and germs are blown directly onto the human body, posing a threat to the user's health. Summary of the Invention

[0004] In view of this, the present invention provides a neck fan that effectively removes impurities, dust, germs, etc. from the air by incorporating a negative ion generator, resulting in purer air and protecting user health. The negative ion generator and the fan assembly are independently controlled, allowing the negative ion function to be used independently even when the fan is not in use, thus saving energy and increasing the product's reusability.

[0005] The present invention provides a neck fan, comprising: a housing having an air inlet and an air outlet; a fan assembly housed within the housing, wherein an air inlet channel is formed between the air inlet and the fan assembly, and an air outlet channel is formed between the air outlet and the fan assembly; and a negative ion generator housed within the housing, wherein the negative ion generator has an electron release port, wherein the negative ion generator and the fan assembly are independently controlled.

[0006] Furthermore, the housing includes a middle section and two clamping arms installed at both ends of the middle section. Each clamping arm includes an air inlet and an air outlet. The fan assembly is provided in each clamping arm. The negative ion generator is housed in at least one clamping arm. Each clamping arm includes a first shell facing the neck of the human body and a second shell facing away from the neck of the human body. The first shell and the second shell are fastened together. The air inlet includes a first air inlet on the first shell and a second air inlet on the second shell. The electronic release port is provided corresponding to the first air inlet and / or the second air inlet.

[0007] Furthermore, an outlet is provided at the connection between the air outlet channel and the receiving cavity. The outlet is used to guide the air generated by the fan assembly to the air duct and block the backflow from the air duct to the receiving cavity. The fan assembly is located in the middle of the clamping arm. The outlet divides the space inside the clamping arm into two parts. One part includes the receiving cavity for accommodating the fan assembly and the air outlet channel. The other part includes a wiring cavity and a receiving cavity for accommodating the negative ion generator. The wiring cavity is located on the side of the clamping arm closer to the middle part, and the receiving cavity is located on the side of the clamping arm away from the middle part.

[0008] Furthermore, it also includes wires and a cover plate covering the air inlet, with a gap between the cover plate and the clamping arm, the electronic release port being located in the gap, a portion of the wires passing through the receiving cavity into the gap, passing through the air inlet and entering the circuit cavity, and a portion of the wires passing through the receiving cavity into the gap and connecting to the electronic release port.

[0009] Furthermore, the electronic release port corresponds to the edge of the air inlet and is disposed facing the air inlet; at least two electronic release ports are provided for each fan assembly; the cover plate is provided with multiple through slots corresponding to the air inlet, and the through slots do not expose the electronic release ports.

[0010] Furthermore, the air outlet channel includes a first air outlet duct near the middle portion and a second air outlet duct away from the middle portion, a portion of the outlet portion separates the first air outlet duct from the circuit cavity, and a portion of the outlet portion separates the second air outlet duct from the receiving cavity.

[0011] Furthermore, it also includes a continuously variable speed control module, which is used to adjust the wind speed of the fan assembly according to at least one of the fan assembly noise, external ambient noise, external ambient temperature, external ambient airflow, user body temperature, and user skin humidity.

[0012] The present invention also provides a neck fan, comprising: a housing having an air inlet, an air outlet, and a negative ion section, wherein the negative ion section is partially adjacent to the air outlet; a fan assembly housed within the housing; a negative ion generator housed within the housing, the negative ion generator having an electron release port; and a separator housed within the housing, separating the air outlet and the negative ion section, and correspondingly separating and forming an adjacent air outlet channel and a negative ion chamber, wherein the fan assembly blows air out from the air outlet through the air outlet channel, and the electron release port is located in the negative ion chamber near the negative ion section to increase the negative ion content of the air around the air outlet.

[0013] Furthermore, the housing includes a middle section and two clamping arms mounted at both ends of the middle section. A fan assembly is provided at the middle position of the middle section. The middle section forms an air inlet and an air outlet. The air outlet channel includes a third air outlet duct facing one of the clamping arms and a fourth air outlet duct facing the other clamping arm. A fan assembly is provided at the free end of each clamping arm. Each clamping arm forms an air inlet, an air outlet, and a negative ion section. The negative ion generator is housed in at least one clamping arm. The air inlet includes a first air inlet and a second air inlet provided on opposite sides of each fan assembly.

[0014] Furthermore, the housing includes a first sidewall facing the neck, a second sidewall facing away from the neck, a third sidewall connecting the first sidewall and the second sidewall and facing the top of the head, and a fourth sidewall connecting the first sidewall and the second sidewall and facing the back. On the middle portion, the air outlet includes a first air outlet disposed on the third sidewall and a second air outlet disposed on the first sidewall. The middle portion and the clamping arm are pivotally connected, and the middle portion and the clamping arm can pivot steplessly.

[0015] Compared with existing technologies, the neck fan of this invention has the following beneficial effects: By incorporating a negative ion generator, on the one hand, the negative ions generated by the generator can sterilize the air, thus making the air blown out from the air outlet not only have a cooling effect but also be purer, ensuring the user's health; on the other hand, the negative ions generated by the generator also neutralize static electricity, preventing dust attracted by static electricity from entering the neck fan, thereby further improving the quality of the final blown air. The negative ion generator and the fan assembly are independently controlled, and the negative ion function can be used independently when the fan is not in use, saving energy and increasing the product's reusability. Attached Figure Description

[0016] Figure 1 This is a perspective view of the first embodiment of the neck fan of the present invention;

[0017] Figure 2 This is an exploded perspective view of the first embodiment of the neck fan of the present invention;

[0018] Figure 3 This is a partial exploded view of the first embodiment of the neck fan of the present invention;

[0019] Figure 4 This is a cross-sectional view of the first embodiment of the neck fan of the present invention;

[0020] Figure 5 yes Figure 4 Enlarged view of section C;

[0021] Figure 6This is a perspective view of the second embodiment of the neck fan of the present invention;

[0022] Figure 7 This is a perspective view of the third embodiment of the neck fan of the present invention;

[0023] Figure 8 This is a perspective view of the fourth embodiment of the neck fan of the present invention;

[0024] Figure 9 This is a three-dimensional exploded view of the neck fan of the present invention from one direction;

[0025] Figure 10 This is an exploded perspective view of the neck fan of the present invention from another direction;

[0026] Figure 11 This is an exploded perspective view of the neck fan of the present invention from another direction. Detailed Implementation

[0027] To facilitate a better understanding of the purpose, structure, features, and effects of this invention, the neck fan 100 of this invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0028] like Figures 1 to 3 The diagram shown is a schematic representation of a first embodiment of the neck fan 100 of the present invention. The neck fan 100 includes a housing 1, a fan assembly 2, a circuit board 3, and a continuously variable speed control module 4. The fan assembly 2 and the circuit board 3 are both housed within the housing 1. The circuit board 3 is electrically connected to the fan assembly 2, and the continuously variable speed control module 4 is electrically connected to the circuit board 3. The continuously variable speed control module 4 is used to adjust the wind speed of the fan assembly 2 based on at least one of the following: fan assembly 2 noise, external ambient noise, external ambient temperature, external ambient airflow, user body temperature, and user skin humidity.

[0029] By setting the stepless speed regulation module 4, the user can steplessly adjust the wind speed of the fan assembly 2 according to at least one of the following: fan assembly 2 noise, external ambient noise, external ambient temperature, external ambient airflow, user body temperature, and user skin humidity. This achieves stepless wind speed adjustment, a wide wind speed adjustment range, and greater autonomy and scientific rigor.

[0030] like Figures 1 to 5As shown, the housing 1 includes a central portion 11 and two clamping arms 12 respectively installed at both ends of the central portion 11. Each clamping arm 12 includes an air inlet 51, a receiving cavity 53, an air outlet channel 54, and an air outlet 55 connected in sequence. The fan assembly 2 is located in the receiving cavity 53. An air inlet channel 52 is formed between the air inlet 51 and the fan assembly 2, and an air outlet channel 54 is formed between the air outlet 55 and the fan assembly 2. The clamping arm 12 is also provided with an outlet 56, which is located at the connection between the receiving cavity 53 and the air outlet channel 54. The outlet 56 is used to guide the air generated by the fan assembly 2 towards the air outlet channel 54 and prevent the air from flowing back from the air outlet channel 54 to the receiving cavity 53.

[0031] like Figures 2 to 5 As shown, each clamping arm 12 includes a first shell 12A facing the neck of the human body and a second shell 12B facing away from the neck of the human body. The first shell 12A and the second shell 12B are fastened together. The air inlet 51 includes a first air inlet 511 disposed on the first shell 12A and a second air inlet 512 disposed on the second shell 12B. When the first shell 12A and the second shell 12B are fastened together, the outlet 56 divides the space inside the clamping arm 12 into two parts. One part includes the receiving cavity 53 and the air outlet channel 54, and the other part includes the wiring cavity 58 and the receiving cavity 57. The receiving cavity 53 is located in the middle of the clamping arm 12, the wiring cavity 58 is located on the side of the clamping arm 12 near the middle portion 11, and the receiving cavity 57 is located on the side of the clamping arm 12 away from the middle portion 11. The air outlet channel 54 includes a first air outlet duct 541 near the middle portion 11 and a second air outlet duct 542 away from the middle portion 11. A portion of the lead-out portion 56 separates the first air outlet duct 541 and the wiring cavity 58, and a portion of the lead-out portion separates the second air outlet duct 542 and the receiving cavity 57. The shell wall of the first housing 12A is recessed inward corresponding to the lead-out portion 56 near the middle portion 11 to form a wire passage space 13, so that the power supply line 7 passes through and enters the wiring cavity 58, which is used for wiring. In this embodiment, the accommodating cavity 57 of one clamping arm 12 is used to accommodate the circuit board 3 and the stepless speed control module 4, and the accommodating cavity 57 of the other clamping arm 12 is used to accommodate the negative ion generator 6, but this is not a limitation.

[0032] like Figure 2 As shown, in this embodiment, the stepless speed control module 4 is a columnar physical structure button. The stepless speed control module 4 includes an arc-shaped side 41, which is used to realize the stepless adjustment of the fan assembly 2 from minimum to maximum, so that the user can customize the noise and wind speed.

[0033] The continuously variable speed control module 4 is exposed outward from the housing 1. Multiple ribs 411 are formed on the arc-shaped side surface 41 to facilitate hand adjustment. At least a radial portion of the arc-shaped side surface 41 is exposed outward from the housing 1, specifically, from the clamping arm 12, allowing the user to adjust the speed by sliding the arc-shaped side surface 41 with a single finger. In this embodiment, the continuously variable speed control module 4 is located at the end of the clamping arm 12 away from the middle portion 11, and on the end face of the clamping arm 12, which facilitates adjustment when worn around the neck. Of course, the position of the continuously variable speed control module 4 is not limited to this.

[0034] The continuously variable adjustment module 4 includes a sensing unit and a control unit. The sensing unit is located inside the housing 1 and electrically connected to the circuit board 3, and is used to monitor at least one of the following: fan assembly 2 noise, external ambient noise, external ambient temperature, external ambient airflow, user body temperature, and user skin humidity. The control unit is used to automatically control and adjust the fan speed of the fan assembly 2 based on the values ​​monitored by the sensing unit, making the airflow more comfortable and scientific, and improving the user experience.

[0035] The stepless speed control module 4 also includes an initialization unit. The initialization unit is used to control the fan assembly 2 to start at one of the following speeds when the neck fan 100 is started: a custom default startup speed between minimum and maximum, a historical speed when it was last stopped, a short-term commonly used speed that the user uses most frequently in a short period, and a long-term commonly used speed that the user uses most frequently in a long period. This makes it easy for the user to get a suitable wind speed when starting the fan.

[0036] like Figure 3 and Figure 4As shown, the neck fan 100 also includes a negative ion generator 6, which is housed within the housing 1. Specifically, the negative ion generator 6 is housed within at least one of the clamping arms 12. The negative ion generator 6 has an electronic release port 61, which is positioned corresponding to the air inlet 51. Alternatively, the electronic release port 61 can also be positioned corresponding to the air inlet channel 52 or the air outlet channel 54. In this embodiment, the negative ion generator 6 is linked to the fan assembly 2 for control. By operating the stepless adjustment module 4, the wind speed of the fan assembly 2 and the on / off state of the negative ion generator 6 can be controlled simultaneously. In other embodiments, the negative ion generator 6 and the fan assembly 2 can be controlled independently. When the fan assembly 2 is not in use, the negative ion function can be used independently, saving energy and increasing the product's reusability. By setting up the negative ion generator 6, on the one hand, the negative ions generated by the negative ion generator 6 can sterilize the air, so that the air blown out from the air outlet 55 not only has a cooling effect, but is also purer, ensuring the health of users; on the other hand, the negative ions generated by the negative ion generator 6 also have the function of neutralizing static electricity, which can prevent dust attracted by static electricity from entering the neck fan 100, thereby further improving the quality of the final blown air.

[0037] like Figures 3 to 5 As shown, optionally, the electronic release port 61 is provided corresponding to the first air inlet 511 and / or the second air inlet 512. In this embodiment, the electronic release port 61 is only provided corresponding to the first air inlet 511. The neck fan 100 also includes a cover plate 14 covering the air inlet 51, with a gap 141 between the cover plate 14 and the clamping arm 12, and the electronic release port 61 is located in the gap 141 between the cover plate 14 and the clamping arm 12 corresponding to the first air inlet 511. The electronic release port 61 corresponds to the edge of the first air inlet 511, and the electronic release port 61 is provided facing the first air inlet 511. At least two electronic release ports 61 are provided for each fan assembly 2, but the number of electronic release ports 61 shown is not limited thereto. The cover plate 14 is provided with a plurality of through slots 142 corresponding to the first air inlet 511. The through slots 142 do not expose the electronic release port 61, so that the electronic release port 61 is provided in relation to the first air inlet 511 and is hidden relative to the through slots 142, thereby enhancing safety performance and technological feel.

[0038] like Figures 3 to 5As shown, a portion of the wire 7 passes through the receiving cavity 57 into the interval 141, passes through the first air inlet 511, and enters the circuit cavity 58. Another portion of the wire 7 passes through the receiving cavity 57 into the interval 141 and connects to the electronic release port 61. The first air inlet 511 forms a cover 15, a connecting portion 16, and air vents 17. The fan assembly 2 includes a motor 21. The cover 15 is disposed corresponding to the motor 21. The cover 15 is connected to the housing 1 via the connecting portion 16, and multiple air vents 17 are formed between the cover 15 and the connecting portion 16. The connecting portion 16 has a first wire groove 161, and the cover 15 has a second wire groove 151, to simultaneously protect the motor 21 and facilitate wire routing.

[0039] like Figure 6 The image shows a second embodiment of the neck fan 100 of the present invention. The difference from the first embodiment is that the stepless speed control module 4 is located at the end of the clamping arm 12 away from the middle portion 11 and is exposed outwards in the second shell 12B, which facilitates adjustment when worn around the neck. Other structures and performance are basically the same as the first embodiment and will not be described further here.

[0040] like Figure 7 The image shows a third embodiment of the neck fan 100 of the present invention. The difference from the first embodiment is that at least a portion of the arc-shaped side surface 41 in the height direction is exposed outwards from the housing 1, specifically, from the second housing 12B, so that the user can twist the arc-shaped side surface 41 with two fingers to adjust the speed. Other structures and performance are basically the same as the first embodiment and will not be described again here.

[0041] like Figures 8 to 11 The image shows a fourth embodiment of the neck fan 100 of the present invention. The difference from the first embodiment is that the housing 1 has an air inlet 51, an air outlet 55, and a negative ion generator 59, with the negative ion generator 59 partially adjacent to the air outlet 55. In this embodiment, the housing 1 also houses a separator 8, and the outlet portion 56 is part of the separator 8. The separator 8 separates the air outlet 55 and the negative ion generator 59, and correspondingly separates and forms adjacent air outlet channels 54 and negative ion chambers 581. The fan assembly 2 blows air out of the air outlet 55 through the air outlet channel 54. The electron release port 61 is located in the negative ion chamber 581 near the negative ion generator 59 to increase the negative ion content of the air around the air outlet 55.

[0042] like Figures 8 to 11As shown, the housing 1 includes a first sidewall 1a facing the neck, a second sidewall 1b facing away from the neck, a third sidewall 1c connecting the first sidewall 1a and the second sidewall 1b and facing the top of the head, and a fourth sidewall 1d connecting the first sidewall 1a and the second sidewall 1b and facing the back. In this embodiment, the housing 1 also includes the middle portion 11 and two clamping arms 12 mounted at both ends of the middle portion 11. The difference is that in this embodiment, the fan assembly 2 is located in the middle of the middle portion 11, and the air inlet 51 includes a first air inlet 511 and a second air inlet 512 disposed on opposite sides of the fan assembly 2. The first air inlet 511 is formed on the first sidewall 1a, and the second air inlet 512 is formed on the second sidewall 1b. The middle portion 11 and the clamping arms 12 are pivotally connected, and the middle portion 11 and the clamping arms 12 can pivot continuously.

[0043] like Figures 9 to 11 As shown, in the middle section 11, the air outlet channel 54 includes a third air outlet 543 facing one of the clamping arms 12 and a fourth air outlet 544 facing the other clamping arm 12, and the air outlet 55 includes a first air outlet 551 provided on the third side wall 1c and a second air outlet 552 provided on the first side wall 1a. The middle section 11, corresponding to the user's back neck area, has dual air outlets, and each air outlet has two air outlets 55 in different directions, making the user's back neck area cooler and more comfortable. Furthermore, corresponding to the second air outlet 552 provided on the first side wall 1a, the first side wall 1a also has a ring-shaped support portion facing the user's back neck. This ring-shaped support portion enhances the wearing comfort of the neck fan 100 and also creates distance between the first side wall 1a and the user's back neck, without obstructing the second air outlet 552, allowing air to blow more effectively from the second air outlet 552 to the back of the neck.

[0044] like Figures 8 to 11As shown, in this embodiment, each clamping arm 12 has a fan assembly 2 at its free end. Each clamping arm 12 has an air inlet 51, an air outlet 55, and a negative ion generator 59. The negative ion generator 6 is housed within at least one clamping arm 12. The air inlet 51 includes a first air inlet 511 and a second air inlet 512 located on opposite sides of the fan assembly 2. The first air inlet 511 is located on the first side wall 1a, and the second air inlet 512 is located on the second side wall 1b. The separator 8 and the cavity wall of the receiving cavity 53 divide the space within the clamping arm 12 into two parts. One part includes the receiving cavity 53 and the air outlet channel 54, and the other part includes the wiring cavity 58. The receiving cavity 53 is located at the free end of the clamping arm 12, and the air outlet channel 54 extends from the receiving cavity 53 toward the middle portion 11. The circuit cavity 58 is located adjacent to the air outlet channel 54. The circuit cavity 58 houses the circuit board 3, the stepless speed regulation module 4, and the negative ion generator 6. The circuit cavity 58 includes the negative ion cavity 581. The electron release port 61 of the negative ion generator 6 is located in the negative ion cavity 581 near the negative ion section 59.

[0045] like Figures 8 to 11 As shown, in this embodiment, the negative ion generator 6 and the fan assembly 2 are controlled independently. The stepless speed regulation module 4 controls the wind speed of the fan assembly 2. A negative ion switch 62 is also provided, which controls the on / off state of the negative ion generator 6. The negative ion function can be used independently when the fan assembly 2 is not in use; similarly, the fan assembly 2 can be used independently when the negative ion generator 6 is not in use, saving energy and increasing the product's reusability.

[0046] It should be understood that, in addition to the four embodiments described above, the stepless speed control module 4 can also be a touch screen. By smoothly sliding on the stepless speed control module 4, the wind speed of the fan assembly 2 can be steplessly adjusted from minimum to maximum, allowing users to customize the noise and wind speed.

[0047] The above detailed description is only an illustration of a preferred embodiment of the present invention and is not intended to limit the patent scope of the present invention. Therefore, all equivalent technical changes made using the content of this invention's specification and illustrations are included within the patent scope of this invention.

Claims

1. A neck fan, characterized in that, include: The housing has an air inlet and an air outlet; the housing includes a middle section and two clamping arms installed at both ends of the middle section, each clamping arm including the air inlet and the air outlet; each clamping arm includes a first shell facing the neck of the human body and a second shell facing away from the neck of the human body, the first shell and the second shell being fastened together. A fan assembly is housed within the receiving cavity of the housing. Each of the clamping arms is provided with the fan assembly. An air inlet channel is formed between the air inlet and the fan assembly, and an air outlet channel is formed between the air outlet and the fan assembly. A negative ion generator is housed within the housing. The negative ion generator has an electron release port and is housed within at least one of the clamping arms. The negative ion generator and the fan assembly are independently controlled. An outlet is provided at the connection between the air outlet channel and the receiving cavity. The outlet guides the air generated by the fan assembly towards the air outlet channel and prevents backflow from the air outlet channel to the receiving cavity. The fan assembly is located in the middle of the clamping arm. The outlet divides the space within the clamping arm into two parts: one part includes the receiving cavity housing the fan assembly and the air outlet channel, and the other part includes the receiving cavity housing the negative ion generator. The receiving cavity is located on the side of the clamping arm away from the middle part. It also includes wires and a cover plate covering the air inlet, with a gap between the cover plate and the clamping arm, the electronic release port being located in the gap, and a portion of the wires passing through the receiving cavity into the gap and connecting to the electronic release port.

2. The neck fan as described in claim 1, characterized in that: The air inlet includes a first air inlet disposed on the first housing and a second air inlet disposed on the second housing, and the electronic release port is disposed corresponding to the first air inlet and / or the second air inlet.

3. The neck fan as described in claim 2, characterized in that: wherein, The lead-out portion divides the space inside the clamping arm into two parts. One part includes a receiving cavity for accommodating the fan assembly and the air outlet channel, while the other part includes a wiring cavity for routing the wires. The wiring cavity is located on the side of the clamping arm near the middle part.

4. The neck fan as described in claim 3, characterized in that: Part of the wire passes through the accommodating cavity into the interval, passes through the air inlet, and enters the circuit cavity.

5. The neck fan as described in claim 4, characterized in that: The electronic release port corresponds to the edge of the air inlet and is disposed facing the air inlet; at least two electronic release ports are provided for each fan assembly; the cover plate is provided with multiple through slots corresponding to the air inlet, and the through slots do not expose the electronic release ports.

6. The neck fan as described in claim 3, characterized in that: The air outlet channel includes a first air outlet duct near the middle portion and a second air outlet duct away from the middle portion. A portion of the outlet portion separates the first air outlet duct from the circuit cavity, and a portion of the outlet portion separates the second air outlet duct from the receiving cavity.

7. The neck fan as described in claim 1, characterized in that: It also includes a continuously variable speed control module, which is used to adjust the wind speed of the fan assembly according to at least one of the fan assembly noise, external ambient noise, external ambient temperature, external ambient airflow, user body temperature, and user skin humidity.

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