CN211550038U - Side outlet hanging neck fan - Google Patents

Abstract

The utility model discloses a side air outlet type hanging neck fan, which comprises a fan body and two air outlet arms. The fan body comprises a casing and a blower assembly, and the blower assembly includes a motor and a fan blade mounted on a shaft end of the motor; wherein One air outlet arm is connected to the left side of the housing, the other air outlet arm is connected to the right side of the housing, the inner walls of the two air outlet arms are hollow to form air cavities, and the air cavities of the two air outlet arms are respectively connected with the above-mentioned housing, and the two outlet The cross-sectional area of the air cavity of the air arm changes from large to small from the casing to the direction away from the casing; and a plurality of air holes are arranged at intervals on the air outlet arm to communicate with the air cavity for air outlet, and the motor drives the fan. The wind generated by the leaves is blown out from the air holes. By arranging the sensor and processor in the neck-mounted fan, the opening and gear adjustment of the fan are made more intelligent. At the same time, the side air outlet is adopted, so that the neck can be dissipated in all directions, and the experience of using the fan is improved. .

Description

Side outlet hanging neck fan

technical field

The utility model relates to the technology in the field of fans, in particular to a side-outlet type hanging neck fan.

Background technique

Fans are one of the most commonly used electrical appliances in daily life. They can not only accelerate the circulation of air, but also bring coolness to people. However, due to the relatively large size of traditional fans, they can only be placed indoors. At present, there are miniaturized hanging neck fans. Compared with traditional fans, the volume is significantly reduced and the weight is light. It is especially suitable for carrying out, especially when walking on the road in hot summer, which can bring coolness to people anytime, anywhere. This kind of hanging neck fan can only control the opening and closing of the fan by pressing the button, and cannot automatically start and stop according to the usage situation, which is not intelligent enough; in addition, this type of fan usually needs to adjust the gear position by pressing the button. After each shutdown, the fan returns to its original state. The gear position needs to be re-adjusted after re-opening, which is inconvenient to operate. Moreover, this type of fan usually relies on small fans hanging on both sides of the arc-shaped support for blowing air, and the lack of the annular support cannot ventilate air, resulting in insufficient cooling on both sides of a person's neck. Therefore, improvements should be made for such fans to solve the above problems.

Utility model content

In view of this, the main purpose of the present utility model is to provide a side vent type hanging neck fan, which can sense the temperature of the human body or the gap between the human body and the fan by being arranged in the hanging neck fan. The distance sensor and the processor that can store the last adjusted gear of the fan and restore the last gear when the fan is turned on again; make the opening and gear adjustment of the fan more intelligent, The neck of the person is dissipated in all directions, which improves the user experience of the fan.

To achieve the above object, the present invention adopts the following technical scheme:

A side air outlet type hanging neck fan includes a fan main body for providing an air source and two elastic air outlet arms, the fan main body includes a casing, and a blower assembly installed in the casing, the blower assembly includes The motor and the fan blade installed on the shaft end of the motor; one of the air outlet arms is connected to the left side of the casing, the other air outlet arm is connected to the right side of the casing, the inner walls of the two air outlet arms are hollow to form an air cavity, and the wind of the two air outlet arms The cavities are respectively communicated with the above-mentioned casings, and the cross-sectional areas of the air cavities of the two air outlet arms respectively change from large to small from the casing to the direction away from the casing; The air hole used for air outlet, the wind generated by the motor driven fan blades is blown out from the air hole.

As a preferred solution: it also includes a control device for controlling the start and stop of the fan, the control device is installed on the main body of the fan or on the air outlet arm, and includes a circuit board that senses the temperature of the human body or the distance between the human body and the fan. A sensor for controlling the start and stop of the motor and a button for manually turning off the fan and adjusting the gear; the circuit board is provided with a gear that can store the last running of the fan and restore the last gear and collect control commands when the fan is turned on again The controller, the sensor, the button and the motor are respectively connected with the controller; and a charging interface is arranged on the circuit board.

As a preferred solution: the sensor is an infrared sensor, a distance sensor or a temperature sensor.

As a preferred solution: the control device is installed on the main body of the fan.

As a preferred solution: a battery for supplying power to the motor is installed in the casing.

As a preferred solution: the fan also includes an indicator light, and an indicator light button for controlling the indicator light is arranged on the fan body or on the air outlet arm. The indicator light button is connected to the above-mentioned circuit board, and the brightness of the indicator light varies with the fan gear bit change.

As a preferred solution, the rear ends of the two air outlet arms are respectively provided with air holes for preventing the backflow of the air in the air cavity.

As a preferred solution, the plurality of air holes are arranged on the side of the air outlet arm facing the neck of the person, and the plurality of air holes are arranged obliquely downward.

As a preferred solution: the main body of the fan has a negative ion generator for generating negative ions, and the negative ions generated by the negative ion generator are blown out by the air outlet component through the air hole.

As a preferred solution, the fan body has two air outlet assemblies, and the two air outlet assemblies are in one-to-one correspondence with the two air outlet arms.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solutions that a sensor that can sense the temperature of the human body or the distance between the human body and the fan is arranged in the neck-hung fan. , and set up a processor that can store the last adjusted gear of the fan and restore the last gear when the fan is turned on again. Therefore, when the fan is in use, as long as the fan is hung on the neck, the fan can be started, avoiding button-type operation, making the fan more intelligent; at the same time, it can automatically restore the last gear and enter the adjustment-free mode, so that the fan can adapt when it is turned on. user's usage habits. In addition, it is equipped with buttons for manual operation, which can meet the different needs of users and improve the experience of using the fan. Moreover, the hanging neck fan has a plurality of air holes on the side, which can cool down the neck of a person by blowing air, and improve the experience of the fan. In order to illustrate the structural features and effects of the present invention more clearly, it will be described in detail below with reference to the accompanying drawings and specific embodiments.

Description of drawings

1 is a schematic perspective view of a fan of the present invention;

FIG. 2 is a schematic diagram of the principle of the fan of the present invention.

Description of drawings:

10. Fan body 11. Housing

12. Blower assembly 121. Motor

122, fan blade 13, negative ion generator

14. Indicator light 15. Indicator light button

20. Air outlet arm 21. Air cavity

22. Air hole 30. Control device

31, circuit board 311, processor

312, plug-in interface 32, sensor

33. Button 40. Battery.

Detailed ways

As shown in Figures 1 and 2 of the present invention, a side-outlet type hanging neck fan includes a fan main body 10 for providing an air source, two elastic air outlet arms 20 and a fan for controlling the start and stop of the fan. Control device 30, wherein:

The fan main body 10 includes a casing 11 (the outer part of the casing 11 can be covered with a silicone coating), a blower assembly 12 installed in the casing 11 , and the blower assembly 12 includes a motor 121 and a fan blade 122 ( It should be noted that there may be two air outlet assemblies 12 in the fan body 10 , and the two air outlet assemblies 12 are in one-to-one correspondence with the two air outlet arms 20 ); one of the air outlet arms 20 is connected to the left side of the housing 11 , the other air outlet arm 20 is connected to the right side of the housing 11, the inner walls of the two air outlet arms 20 are hollow to form an air cavity 21, the air chambers 21 of the two air outlet arms 20 are respectively connected with the above-mentioned housing 11, and the two air outlet arms 20 The cross-sectional area of the air cavity 11 changes from large to small from the casing 11 to the direction away from the casing 11 respectively; and a plurality of air holes 22 which communicate with the air cavity 11 for air outlet are arranged on the air outlet arm 20 at intervals. (In this embodiment, the plurality of air holes 22 are arranged on the side of the air outlet arm 20 facing the neck of the person, and the plurality of air holes 22 are arranged obliquely downward, and the motor 121 drives the wind generated by the fan blades 122 by The air holes 22 are blown toward the neck of the person), and in addition, the rear ends of the two air outlet arms 20 are respectively provided with air holes 22 for preventing the backflow of the wind in the air cavity 21 . The fan body 10 is provided with a negative ion generator 13 for generating negative ions. The negative ions generated by the negative ion generator 13 are blown out by the air outlet assembly 12 through the air hole 22 , and the negative ion generator 13 is connected to the above-mentioned control device 30 .

The control device 30 is installed on the fan body 10 or the air outlet arm 20. (In this embodiment, the control device 30 is installed on the fan body 10; it can also be installed on one of the air outlet arms 20 or at the same time as required. The control device 30 includes a circuit board 31, a sensor 32 that senses the temperature of the human body or the distance between the human body and the fan, and a button 33 for manually operating the fan and adjusting the gear. .

The circuit board 31 is installed inside the main body of the fan 10, and is provided on the circuit board 31 for storing the last adjusted gear position of the fan and restoring the last gear position when the fan is turned on again, and can collect the commands of the sensor 32 and the button 33 to A processor 311 for controlling fan start-stop and gear adjustment (the processor 311 is a single-chip processor with a memory function) and a plug-in interface 312 for connecting to a power supply; the sensor 32 is arranged on the fan body 10 (also The sensor 32 is used to sense the temperature of the human body or the distance between the human body and the fan (the sensor 32 can be selected from an infrared sensor, a distance sensor or a temperature sensor) The button 33 is provided on the fan body 10 for manual operation of the fan, and the button 33 and the motor 121 are respectively connected to the processor 311. In addition, a battery 40 for supplying power to the motor 121 is installed in the fan body 10 , and the battery 40 is connected to the motor 121 , the processor 311 and the plug-in interface 312 respectively. And on the fan body 10 or the air outlet arm 20 is also provided with an indicator light 14 and an indicator light button 15 for controlling the indicator light 14, the indicator light button 15 is connected with the above-mentioned processor 311 and the indicator light 14, and the indicator light 14 is connected with the processing connected to the fan 311, and the brightness of the indicator light 14 changes with the fan gear.

The use method and principle of the fan are as follows: after the fan is put on the neck, the sensor 32 senses a signal (there is an obstruction or senses a signal consistent with the set temperature or distance range), and the sensor 32 sends a signal to the processor 311 command, the processor 311 controls the motor 121 to start. At the same time, the user can directly control the start and stop of the motor 121 through the operation of the button 33 . The processor 311 of the fan can store the last adjusted gear position of the fan and restore the last gear position when the fan is turned on again, so when the fan is started, the last fan gear position will be automatically restored, so as to satisfy the user's usage habits. Instead of re-adjusting the fan gear.

At the same time, the manual mode adjustment can be performed through the button 33. When the fan has been activated by induction, press the button 33 to enter the next gear. After adjusting to the maximum gear, press again and the fan will be turned off. If the button 33 is used to start the fan, the operation of the button 33 is as follows: press once to turn on the fan, this time is the gear mode of the last use; press again to enter the next gear mode; after adjusting to the maximum gear, press again The fan will be turned off (the number of gears can be set as required). When the fan is turned off, remove the fan from the neck (when the sensor 32 cannot sense the obstruction or the temperature or distance is not within the preset range, the sensor 32 sends an instruction to the processor 311, and the processor 311 turns off the fan) or directly Use the button 33 to operate. The above-mentioned indicator light 14 can change the brightness with the change of the gear position, and the indicator light button 15 can control the brightness and opening and closing of the indicator light 14 . When charging, just use a charging cable to connect the power source and the plug-in interface 312 .

The key point of the design of the present utility model is that a sensor that can sense the temperature of the human body or the distance between the human body and the fan is arranged in the hanging neck fan, and a sensor that can store the last adjusted gear position of the fan and is restored when the fan is turned on again The processor of the last gear. Therefore, when the fan is in use, as long as the fan is hung on the neck, the fan can be started, avoiding button-type operation, making the fan more intelligent; at the same time, it can automatically restore the last gear and enter the adjustment-free mode, so that the fan can adapt when it is turned on. user's usage habits. In addition, it is equipped with buttons for manual operation, which can meet the different needs of users and improve the experience of using the fan. Moreover, the hanging neck fan has a plurality of air holes on the side, which can cool down the neck of a person by blowing air, and improve the experience of the fan.

The above descriptions are only preferred embodiments of the present invention, and do not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and Modifications still fall within the scope of the technical solution of the present invention.

Claims (10)

1. A side air outlet type hanging neck fan is characterized in that: it comprises a fan body for providing an air source and two elastic air outlet arms, the fan body comprises a casing and a blower assembly installed in the casing , the blower assembly includes a motor and a fan blade mounted on the shaft end of the motor; one of the air outlet arms is connected to the left side of the housing, the other air outlet arm is connected to the right side of the housing, and the inner walls of the two air outlet arms are hollow to form an air cavity, and two air outlet arms are hollow to form an air cavity. The air cavities of the air outlet arms are respectively communicated with the above-mentioned casings, and the cross-sectional areas of the air cavities of the two air outlet arms respectively change from large to small from the casing to the direction away from the casing; An air hole communicated with the air cavity for air outlet, and the wind generated by the fan blades driven by the motor is blown out from the air hole. 2. The side air outlet type hanging neck fan according to claim 1, characterized in that: it further comprises a control device for controlling the start and stop of the fan, the control device is installed on the fan body or on the air outlet arm, and includes a A circuit board, a sensor for controlling the start and stop of the motor by sensing the temperature of the human body or the distance between the human body and the fan, and a button for manually turning off the fan and adjusting the gear; the circuit board is provided with a gear that can store the last running position of the fan and When the fan is turned on again, it restores the last gear and collects the control command. The sensor, the button and the motor are respectively connected to the controller; and a charging interface is arranged on the circuit board. 3 . The side-outlet type hanging neck fan according to claim 2 , wherein the sensor is an infrared sensor, a distance sensor or a temperature sensor. 4 . 4 . The side-outlet type hanging neck fan according to claim 2 , wherein the control device is mounted on the fan body. 5 . 5 . The side-outlet type hanging neck fan according to claim 4 , wherein a battery for supplying power to the motor is installed in the casing. 6 . 6 . The side-venting neck hanging fan according to claim 2 , wherein the fan further comprises an indicator light, and an indicator light button for controlling the indicator light is arranged on the fan body or the air outlet arm, and the The indicator button is connected to the above circuit board, and the brightness of the indicator varies with the fan gear. 7 . The side air outlet type hanging neck fan according to claim 1 , wherein the rear ends of the two air outlet arms are respectively provided with air holes for preventing the backflow of air in the air cavity. 8 . 8 . The side air outlet type hanging neck fan according to claim 1 , wherein the plurality of air holes are arranged on the side of the air outlet arm facing the neck of the person, and the plurality of air holes are oblique. 9 . under Settings. 9. The side air outlet type hanging neck fan according to claim 1, wherein the main body of the fan has a negative ion generator for generating negative ions, and the negative ions generated by the negative ion generator are passed through the air hole by the air outlet assembly. blow out. 10 . The side-outlet type hanging neck fan according to claim 1 , wherein the fan body has two air outlet assemblies, and the two air outlet assemblies are in one-to-one correspondence with the two air outlet arms. 11 .

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