CN113633085A - Handheld blower and control method - Google Patents
Handheld blower and control method Download PDFInfo
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- CN113633085A CN113633085A CN202111013796.0A CN202111013796A CN113633085A CN 113633085 A CN113633085 A CN 113633085A CN 202111013796 A CN202111013796 A CN 202111013796A CN 113633085 A CN113633085 A CN 113633085A
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/04—Hot-air producers
- A45D20/08—Hot-air producers heated electrically
- A45D20/10—Hand-held drying devices, e.g. air douches
- A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/04—Hot-air producers
- A45D20/08—Hot-air producers heated electrically
- A45D20/10—Hand-held drying devices, e.g. air douches
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- Cleaning And Drying Hair (AREA)
Abstract
The patent relates to a hand-held hair dryer and a control method, wherein the hand-held hair dryer comprises a shell; a controller; the controller comprises a first data acquisition module, a second data acquisition module and a control module, wherein the first data acquisition module is connected with the capacitance sensing film and is used for acquiring contact information of a human body and the handheld blower, which is detected by the capacitance sensing film; the second data acquisition module is connected with the attitude sensor and used for acquiring the attitude information of the blower; the third data acquisition module is connected with an infrared sensor, and the infrared sensor is arranged on one side of the air outlet to acquire the human body distance information around the air outlet; and the control module is used for controlling the operation of the handheld blower through the information acquired by the first data acquisition module, the second data acquisition module and the third data acquisition module. The patent provides a handheld hair drier and a control method thereof, which reduce the risk caused by improper placement or use in the use process or after use.
Description
Technical Field
The patent relates to the field of household appliances, in particular to a handheld blower and a control method.
Background
The hair dryer is a common household appliance in daily life and is mainly used for drying hair or in scenes with drying requirements. In the prior art, the drying device usually comprises a heating device such as a heating wire for improving the air outlet temperature, and the heating device is matched with the fan to improve the drying efficiency.
The hair drier brings convenience to daily life, and meanwhile, the occurrence rate of fire caused by improper placement in the using process or after use is continuously improved, so that economic loss and even casualties are caused to a certain degree.
Disclosure of Invention
The present patent is based on the above-mentioned needs of the prior art, and the technical problem to be solved by the present patent is to provide a hand-held hair dryer and a control method thereof, which can reduce the risk caused by improper placement during or after use.
In order to solve the above problem, the technical scheme provided by the patent comprises:
there is provided a hand held hair dryer comprising: the air conditioner comprises a shell, a fan blade and a fan blade, wherein the shell is integrally cylindrical, one end of the shell is provided with an air outlet, and the other end of the shell is provided with an air inlet; the circuit board is provided with a controller; the controller comprises a first data acquisition module, a second data acquisition module and a control module, wherein the first data acquisition module is connected with the capacitance sensing film and is used for acquiring contact information of a human body and the handheld blower, which is detected by the capacitance sensing film; the second data acquisition module is connected with the attitude sensor and used for acquiring the attitude information of the blower; the third data acquisition module is connected with an infrared sensor, and the infrared sensor is arranged on one side of the air outlet to acquire the human body distance information around the air outlet; and the control module is used for judging whether the handheld blower is held, whether the posture changes and whether the handheld blower faces and approaches the human body or not through the information acquired by the first data acquisition module, the second data acquisition module and the third data acquisition module so as to control the operation of the handheld blower. The controller judges the use condition of the handheld blower by acquiring the information of the capacitance sensing film, the attitude sensor and the infrared sensor, and controls the handheld blower according to the corresponding use condition.
Preferably, the handheld blower comprises a switch key, and the switch key controls the on-off of the handheld blower and has the highest priority.
Preferably, the hand-held hair dryer has an object blowing mode, when the hand-held hair dryer is in an on state and the object blowing mode is used, the infrared sensor is in an off state, and the controller controls the work of the hand-held hair dryer according to at least one signal of the capacitance sensing film and the attitude sensor.
Preferably, after the handheld blower is started, when the first data acquisition module receives contact information of a human body and the handheld blower, which is detected by the capacitance sensing film, and the contact information indicates that the handheld blower is not held, the whole handheld blower is in a standby state. The fire risk caused by continuous work of the handheld blower in the state that no human hand holds the blower is effectively reduced.
Preferably, after the handheld blower is started, the first data acquisition module receives contact information of a human body and the handheld blower, which is detected by the capacitance sensing film, and indicates that the handheld blower is held, and the posture information acquired by the second data acquisition module within the first time threshold indicates that no posture change exists in the handheld blower, the handheld blower is in a standby state. The arrangement can effectively reduce the risk caused by continuously heating a certain area due to the fact that the hand holds the hair drier without shaking.
Preferably, after the hand-held hair dryer is started, when the first data acquisition module receives contact information of a human body and the hand-held hair dryer, which is detected by the capacitance sensing film, indicating that the hand-held hair dryer is held, the posture information acquired by the second data acquisition module indicates that the posture of the hand-held hair dryer is changed, and the third data acquisition module acquires human body distance information around the air outlet within a second time threshold value, indicating that the hand-held hair dryer is not facing and close to the human body, the hand-held hair dryer is in a standby state. So set up and can effectively reduce the user and touch by mistake and make handheld hair-dryer continuous work, and then cause the hair-dryer to generate heat seriously and the fire accident that produces.
Preferably, the hand-held hair dryer is kept in a standby state and exceeds a second time threshold, and the hand-held hair dryer is turned off. The user does not use the handheld blower within a period of time, the handheld blower can be automatically closed, resources can be saved, and meanwhile, fire caused by excessive heating of the heating wire due to long-time work of the blower is prevented.
Preferably, the handheld blower is kept in a standby state and within a second threshold value, the condition that the first data acquisition module receives contact information of a human body and the handheld blower detected by the capacitance sensing film and indicates that the handheld blower is held is met, the second data acquisition module acquires posture information of the handheld blower and indicates that the handheld blower has posture change, and the third data acquisition module acquires human body distance information around the air outlet and indicates that the handheld blower faces and is close to the human body, the handheld blower restores the setting before standby and continues to work.
There is provided a method of controlling a hand held hair dryer comprising: monitoring human body holding information of the handheld blower; acquiring posture information of the handheld blower; acquiring orientation information of the handheld blower; when the handheld blower is held, the posture change of the handheld blower meets a first characteristic, and the handheld blower faces and approaches a human body, an executing device of the handheld blower is started. Information, gesture information and orientation information are held through the human body of gathering handheld hair-dryer respectively, and will information integration is with the start-up of controlling handheld hair-dryer, and the handheld hair-dryer of multiple information common control can reduce the risk that handheld hair-dryer used the appearance, prevents the conflagration that arouses because of user's wrong use mode.
Preferably, the first feature includes: the hand-held hair drier moves for a distance greater than a first distance and/or rotates for an angle greater than a first angle.
Compared with the prior art, this patent adopts above-mentioned technical scheme, through the mutual cooperation of capacitive sensing membrane and attitude sensor, reduces the possibility of taking place the risk, can avoid the possibility of taking place the conflagration ground in the use for the user as far as possible.
Drawings
In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present specification, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a sectional view showing a structure of a hand-held hair dryer according to the present embodiment;
FIG. 2 is an external structural view of a hand-held hair dryer according to the present embodiment;
FIG. 3 is a bottom view of the hand held hair dryer of this embodiment;
FIG. 4 is a block diagram of the electrical connections of the hand held hair dryer of this embodiment;
fig. 5 is a block diagram of a flow chart of a method of controlling a hand-held hair dryer in accordance with the present embodiment.
Reference numerals:
1. a housing; 2. a vortex chamber; 3. an air inlet; 4. an air outlet; 5. a capacitive sensing film; 6. a circuit board; 7. a fan; 8. a heating wire.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the term "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection, which may be a mechanical connection, an electrical connection, which may be a direct connection, or an indirect connection via an intermediate medium. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The terms "top," "bottom," "above … …," "below," and "on … …" as used throughout the description are relative positions with respect to components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are multifunctional, regardless of their orientation in space.
For the purpose of facilitating understanding of the embodiments of the present application, the following description will be made in terms of specific embodiments with reference to the accompanying drawings, which are not intended to limit the embodiments of the present application.
Example 1
The embodiment provides a handheld blower, and the handheld blower is shown in figures 1-4.
The hand-held hair drier comprises a shell 1, a fan 7, a heating device, a circuit board 6, a capacitance induction film 5 and the like.
The casing 1, the casing 1 is the tube-shape as a whole, the section of thick bamboo can be the drum, approximate drum, oval section of thick bamboo, the curved surface section of thick bamboo similar to circle or ellipse. An air outlet 4 is arranged on the side wall of one end of the shell 1, and an air inlet 3 is arranged on the side wall of the other end. The end face of the end provided with the air inlet 3 is closed, and the interior of the end provided with the air outlet 4 is hollow, so that a vortex chamber 2 is formed.
Because the shell 1 is in a cylindrical shape, the upper part of the shell is closed, the side wall of the shell is provided with an opening, namely the air outlet 4, when the hand-held hair drier runs, air is injected into the shell 1 from the lower part, positive pressure is formed inside the shell and is discharged to the outside, and because the upper end of the shell is closed, the air enters the shell 1 and is discharged to the air outlet 4 of the side wall, and the air flowing mode inside the shell 1 rotates in a vortex mode and flows out.
The vortex chamber 2 is in a capsule shape, and the arrangement can reduce the volume of the handheld blower and increase the pressure to provide larger air volume.
The air outlet 4 is provided on the outer peripheral surface of the one end of the housing 1.
The cross section of the housing 1 has a first curvature and a second curvature, the first curvature is a curvature of a side close to the air outlet 4, the second curvature is a curvature of a side far from the air outlet 4, and the second curvature is larger than the first curvature. So be provided with and do benefit to the gripping of staff, can effectual promotion user's use experience.
When the object is held by the hand, the joints connected with the palm at the tail ends of the fingers are folded, the positions usually have larger curvature relative to other parts of the hand, and when the hair drier is operated by a person, the air outlet of the hair drier deviates from the palm, so that the safety and the operation convenience are facilitated, and the orientation of the hair drier is easy to distinguish when the hair drier is held by the person due to the fact that the curvature of the shell 1 arranged at the two sides of the air outlet 4 is different, and the safety is guaranteed.
Because shell 1 is the tube-shape, when the staff grips completely, is inconvenient with the switch of finger control hair-dryer, can influence user's use and experience, so this patent set up on the handheld hair-dryer capacitance induction membrane 5 and attitude sensor, it is right to realize through the sensor the control of handheld hair-dryer promotes user's use and experiences, makes its more convenient right the behavior of handheld hair-dryer is controlled, reduces the risk that causes the conflagration.
And the fan 7 is used for providing power for the handheld blower. The fan 7 is located the circuit board 6 with between the heater strip 8, and include air inlet end and air-out end, the air inlet end with the air intake 3 of handheld hair-dryer is linked together, the air-out end with vortex cavity 2 is linked together. The fan 7 injects gas into the vortex chamber 2 to form a vortex.
The shell 1 of the fan 7 is cylindrical, and at least part of the shell is attached to the shell 1 with the first curvature; therefore, the motor can be fixed without extra space while wiring, and the stable position of the fan can be kept by utilizing the change of the curved surface of the shell 1.
In this embodiment, a lead is disposed in the gap to connect electrical components at two ends of the fan 7. Further, the blower 7 is electrically connected to the circuit board 6. The space can be effectively saved by arranging the conducting wire in the gap, and the space utilization rate inside the handheld blower is greatly improved.
A heating device comprising a frame and a heating wire 8. The frame is in a shape adapted to the vortex chamber. The heating wire 8 is wound around the frame in a certain direction, the winding shape is also matched with the shape of the vortex chamber 2, and the gas can be heated while forming a vortex in the vortex chamber 2.
The circuit board 6 is arranged on one side, close to the air inlet 3, inside the shell 1, and the circuit board 6 is provided with a controller.
The controller is respectively electrically connected with the fan 7 and the heating wire 8.
The controller is respectively and electrically connected with the capacitance induction film 5, the attitude sensor and the infrared sensor.
The electric capacity response membrane 5, the electric capacity response membrane 5 is used for receiving the user in the use hand to the contact condition of handheld hair-dryer, and when it reaches certain degree, the controller is to fan 7 and the control that heater strip 8 responded.
The capacitance sensing film 5 is arranged on one side close to the air inlet 3. In this embodiment, the capacitance sensing film 5 is a metal conductive device having ductility connected to the circuit board 6, and may be a conductive material having conductivity, such as a copper foil or an aluminum foil.
Further, the controller collects the capacitance value of the capacitance sensing film 5 in real time, and when the capacitance value reaches a certain value, the controller determines that the handheld blower is held at the moment.
The utility model discloses a handheld hair-dryer, including the handheld hair-dryer, the electric capacity response membrane 5 is in the bottom with the certain distance is reserved at 3 tops of air intake, can prevent effectively that the user from holding when using this handheld hair-dryer, for holding as far as possible 5 position of electric capacity response membrane and cover 3 covers 3 air intake 3 easily makes handheld hair-dryer temperature rises rapidly and causes the inside harm of handheld hair-dryer can lead to user's hand scald even, and more serious can cause the conflagration.
The top of the capacitance sensing film 5 and the bottom of the fan 7 are reserved with a certain distance, on one hand, the vibration of the fan 7 during operation flows out a certain space, and on the other hand, the heat generated during the operation of the fan 7 is effectively prevented from affecting the capacitance sensing film 5 to a certain extent, so that the sensing result of the capacitance sensing film 5 is inaccurate.
Further, the capacitance sensing film 5 is malleable and can be bent. The capacitance sensing film 5 is arranged on one side with the second curvature and has the second curvature.
Further, the capacitance sensing film 5 is formed on the outer side of the housing or on the inner side of the housing. If the handheld blower is arranged on the outer side of the shell, whether the handheld blower is held or not can be detected more sensitively, and the improvement of sensitivity is facilitated, so that a user has better use experience; if the capacitor induction film 5 is arranged on the inner side of the shell, the service life of the capacitor induction film 5 can be prolonged, and the capacitor induction film 5 can be effectively protected from being damaged when the capacitor induction film is arranged inside the shell 1. Further increasing the service life of the hand-held hair dryer.
When the capacitance sensing film 5 is disposed inside the housing 1, the capacitance sensing film 5 may be disposed closely to the inner wall of the housing, or may be disposed at a position having a certain distance from the housing 1. It is noted that the closer the distance between the capacitance-sensitive membrane 5 and the inner wall of the housing, the better.
The capacitance sensing film 5 is arranged close to the inner wall of the shell, so that the sensitivity of the capacitance sensing film is ensured, and the capacitance sensing film is protected from being interfered and damaged by the outside.
The distance between the capacitance sensing film 5 and the inner wall of the housing is made as close as possible because the sensitivity of the capacitance sensing film 5 is related to the distance between the capacitance sensing film 5 and its trigger part and the medium, and the closer the distance, the higher the sensitivity.
This embodiment compromise user's experience and the quality and the life of handheld hair-dryer, will capacitive sensing membrane 5 is hugged closely the shell inner wall is placed.
In another embodiment of this embodiment, the capacitive sensing film 5 surrounds the outer side of the housing for a circle, that is, when the hand-held hair dryer can be held from any direction, the capacitive sensing film 5 can be triggered, so that the hand-held hair dryer operates.
The induction film is electrically connected with a first data acquisition module on the controller, the first data acquisition module acquires the capacitance value of the capacitance induction film 5 in real time, and when the capacitance value exceeds a specified threshold value, the handheld blower is considered to be in a held state.
The handheld blower can be used only when being held, and fire risks caused by the fact that a user forgets to close the handheld blower can be effectively avoided.
The attitude sensor is a high-performance three-dimensional motion attitude measurement system based on a micro-motor system technology. The system comprises auxiliary motion sensors such as a three-axis gyroscope, a three-axis accelerometer, a three-axis electronic compass and the like, outputs calibrated angular velocity, acceleration, magnetic data and the like through an embedded low-power-consumption ARM processor, measures the motion attitude through a sensor data algorithm based on quaternion, and outputs zero-drift three-dimensional attitude data expressed by quaternion, Euler angle and the like in real time.
In this embodiment, the attitude sensor is a gyroscope.
And the attitude sensor is arranged on the circuit board 6 and used for monitoring the attitude of the handheld blower.
The posture of the hand-held hair dryer comprises position change and rotation angle change.
The attitude sensor is electrically connected with a second data acquisition module of the controller, the second data acquisition module acquires attitude information of the attitude sensor in real time, the attitude information comprises displacement information and angle information of the hair dryer, and when the displacement of the handheld hair dryer exceeds a specified first distance and/or the rotating angle of the handheld hair dryer exceeds a specified first angle, the handheld hair dryer is considered to have attitude change.
In the present embodiment, the attitude sensor is provided with a first distance and a first angle. When the displacement of the handheld blower reaches a first distance or the rotation angle of the handheld blower reaches a first angle, the controller controls the handheld blower to make a corresponding response.
The first distance and the first angle are set in the attitude sensor to reduce false triggering of the handheld blower and prevent the change of the working state of the handheld blower caused by slight position change or angle change. Frequent changes in the operating state of the handheld hair dryer can reduce the service life of the handheld hair dryer, accelerate damage of the handheld hair dryer and influence the use experience of a user, and meanwhile reduce the fire risk caused by false triggering.
And the infrared sensor is arranged on one side of the air outlet 4 and can acquire the distance information of the human body around the air outlet 4.
The controller comprises a third data acquisition module for reading data of the infrared sensor, and the third data acquisition module is electrically connected with the infrared sensor. And when the obtained distance between the handheld blower and the human body is less than the second distance, the air outlet 4 is considered to be in a state of facing and being close to the human body.
The infrared sensor can effectively prevent the influence of the operation of the handheld blower caused by the mistaken touch of a user in the using process, so that the possibility of fire risks caused by the mistaken touch is effectively reduced.
The hand-held hair drier is provided with the keys, different control effects can be generated through different operation modes, and illustratively, when the keys are pressed for a short time, the wind speed of the hand-held hair drier can be adjusted; when a key is pressed for a long time, the mode of the handheld blower can be switched.
The handheld blower comprises a switch key, and the switch key controls the on-off of the handheld blower and has the highest priority.
The hand-held hair drier has an object blowing mode, when the hand-held hair drier is in a starting state and in the object blowing mode, the infrared sensor is in a closing state, and the controller controls the work of the hand-held hair drier according to at least one signal of the capacitance sensing film 5 and the attitude sensor.
In this embodiment, the handheld blower is powered on and then defaults to a hair blowing mode, the infrared sensor is in an on state at this time, when a user needs to dry an object, the infrared sensor is turned off, and a key provided on the handheld blower controls the operation of the handheld blower.
After the handheld hair drier is started, when the first data acquisition module receives contact information of a human body and the handheld hair drier, which is detected by the capacitance sensing film 5, and the contact information indicates that the handheld hair drier is not held, the whole handheld hair drier is in a standby state.
After the handheld blower is started, the first data acquisition module receives contact information of a human body and the handheld blower, which is detected by the capacitance sensing film 5, and the first data acquisition module indicates that the handheld blower is held, and when posture information acquired by the second data acquisition module within a first time threshold indicates that no posture change exists in the handheld blower, the handheld blower is in a standby state.
After the handheld blower is started, when the first data acquisition module receives contact information of a human body and the handheld blower, detected by the capacitance sensing film 5, indicating that the handheld blower is held, the posture information acquired by the second data acquisition module indicates that the handheld blower has posture change, and the third data acquisition module acquires human body distance information around the air outlet within a second time threshold value, indicating that the handheld blower does not face and is close to the human body, the handheld blower is in standby.
And when the handheld blower is kept in a standby state and exceeds a second time threshold, the handheld blower is turned off.
The handheld blower is kept in a standby state and within a second threshold value, the condition that the first data acquisition module receives contact information of a human body and the handheld blower, which is detected by the capacitance sensing film 5, indicates that the handheld blower is held, the second data acquisition module acquires posture information of the handheld blower, which indicates that the handheld blower has posture change, and the third data acquisition module acquires human body distance information around the air outlet, which indicates that the handheld blower faces and is close to the human body, and the handheld blower restores to the setting before standby and continues to work is met.
In this embodiment, the logic control module on the controller determines and processes the information acquired by the first data module, the second data acquisition module and the third data acquisition module, and when the capacitance value exceeds a predetermined threshold value, and there is a posture change and the air outlet 4 faces and approaches the human body, the controller controls the operation of the hand-held hair dryer.
And a logic control module on the controller judges and processes the information acquired by the first data module, the second data acquisition module and the third data acquisition module, and when the capacitance value exceeds a specified threshold value, posture change exists and the air outlet 4 faces and is close to a human body, the controller controls the handheld blower to operate.
Further, when the capacitance value of the capacitance sensing film 5 collected by the controller exceeds a threshold value set in advance, it indicates that the handheld blower is in a held state at the moment, in this case, the attitude sensor monitors that the displacement of the handheld blower exceeds a first distance or the rotation angle of the handheld blower exceeds a first angle, it indicates that the handheld blower is in a held and moved state at the moment, it can be determined that the user is going to use the handheld blower, meanwhile, the infrared sensor detects that the distance between the human body and the air outlet 4 is smaller than a second distance, it is determined that the air outlet 4 is in a state facing and close to the human body, the handheld blower starts to operate, that is, the fan 7 is turned on, and the heating wire 8 starts to heat.
Further, only when the capacitance value of the capacitance sensing film 5 exceeds a preset threshold value, and the attitude sensor detects that the handheld blower moves a first distance or rotates a first angle, and meanwhile, the distance between the air outlet 4 and the human body is smaller than a second distance, the controller controls the handheld blower to operate.
In other cases, the hand held dryer is not operational. The arrangement improves the safety of the handheld blower and reduces the risk of fire caused by accidental touch or other reasons.
When the user suspends the use of the handheld blower, the controller detects that the capacitance of the capacitance sensing film 5 is lower than the threshold value, or the gesture sensor does not detect that the gesture of the handheld blower is changed, the handheld blower operates for a short time. If the capacitance sensing film 5, the attitude sensor and the infrared sensor are not changed in the period, the controller controls the handheld blower to stop working; if the capacitance sensing film 5, the attitude sensor and the infrared sensor are changed during the period, the hand-held hair dryer will continue to work.
It should be noted that, in this embodiment, the controller controls the blower and the heating wire 8 by collecting data of the capacitance sensing film 5 and the attitude sensor, and the control is performed in a state where the hand-held hair dryer is stopped, that is, the hair dryer is already running, and the hair dryer is not operated due to interruption of use for some reason, but the hand-held hair dryer and the power supply are still in an electrically connected state.
Example 2
The present embodiment provides a control method of a hand-held hair dryer, and the flow chart is shown in fig. 5.
The controller of the handheld blower monitors a human body holding signal of the handheld blower, acquires posture change information of the handheld blower, and starts the executing device of the handheld blower when detecting that the handheld blower is held and the posture change of the handheld blower meets a first characteristic.
Specifically, the first characteristic includes the hand-held hair dryer moving a distance greater than a first distance and/or rotating an angle greater than a first value.
The control method of the handheld blower has real-time performance, so that the collected data are all real-time data.
The human body holding information comprises a capacitance value of a capacitance sensing film 5, the magnitude relation between the capacitance value and a specified threshold value is compared, when the capacitance value is smaller than the threshold value, the handheld blower is not held, and monitoring is continued; when the capacitance value is greater than the threshold value, the handheld blower is considered to be held and monitoring continues.
Specifically, the holding condition of the hand-held hair dryer is represented by the capacitance value, and a threshold value is defined as a critical value of the holding condition. Using the threshold to determine whether the hand-held hair dryer is in a held state.
Judge through capacitive sensing membrane 5 the state of gripping of handheld hair-dryer realizes that handheld hair-dryer is in the standby under the condition of not being gripped, can effectively reduce the risk that the conflagration took place, prevents to touch the conflagration that other reasons caused because of the mistake.
Judging whether the moving distance of the handheld blower is greater than a first distance and/or whether the rotating angle is greater than a first angle, if not, determining that no posture change exists, and continuing monitoring; if yes, the posture change is considered to exist, and monitoring is continued.
In this embodiment, the posture change of the hand-held hair dryer is judged by the posture sensor, and the hand-held hair dryer can be operated only when the posture change occurs.
The arrangement enables the handheld blower in the static state to be kept in a closed or standby state, and greatly reduces the fire risk caused by forgetting to close the handheld blower in the static state.
And judging the distance and the orientation relation between the air outlet 4 and the human body, and when the distance between the air outlet and the human body is less than a second distance, considering that the handheld blower faces and is close to the human body. The hand-held hair dryer may only be operated if the infrared sensor detects a human body in the vicinity.
The setting can effectively reduce the condition of mistakenly touching when the user uses, thereby reducing the fire risk caused by mistakenly touching.
And only when the capacitance value exceeds a preset threshold value, the handheld blower is detected to move a first distance or rotate a first angle, and meanwhile, the distance between the air outlet 4 and the human body is smaller than a second distance, the controller controls the handheld blower to operate.
In other cases, the hand held dryer is not operational. The arrangement improves the safety of the handheld blower and reduces the risk of fire caused by accidental touch or other reasons.
When the user suspends the use when handing the hair-dryer, the controller detects the electric capacity is less than the threshold value, or attitude sensor can't detect handheld hair-dryer's gesture changes, or when the distance between air outlet 4 and the human body is not less than the second distance, handheld hair-dryer will operate for a short period of time. If the capacitance, the posture information and the orientation information are not changed in the period, the controller controls the handheld blower to stop working; if the capacitance, attitude information and orientation information all satisfy the change of operating the handheld blower during the period, the handheld blower continues to work.
It should be noted that, in this embodiment, the controller controls the blower and the heating wire 8 by collecting data of the capacitance sensing film 5 and the attitude sensor, and the control is performed in a state where the hand-held hair dryer is stopped, that is, the hair dryer is already running, and the hair dryer is not operated due to interruption of use for some reason, but the hand-held hair dryer and the power supply are still in an electrically connected state.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention in any way, and it will be apparent to those skilled in the art that the above description of the present invention can be applied to various modifications, equivalent variations or modifications without departing from the spirit and scope of the present invention.
Claims (10)
1. A hand held hair dryer, comprising:
the air conditioner comprises a shell, a fan blade and a fan blade, wherein the shell is integrally cylindrical, one end of the shell is provided with an air outlet, and the other end of the shell is provided with an air inlet;
the circuit board is provided with a controller;
the controller comprises a first data acquisition module, a second data acquisition module and a control module, wherein the first data acquisition module is connected with the capacitance sensing film and is used for acquiring contact information of a human body and the handheld blower, which is detected by the capacitance sensing film;
the second data acquisition module is connected with the attitude sensor and used for acquiring the attitude information of the blower;
the third data acquisition module is connected with an infrared sensor, and the infrared sensor is arranged on one side of the air outlet to acquire the human body distance information around the air outlet;
and the control module is used for judging whether the handheld blower is held, whether the posture changes and whether the handheld blower faces and approaches the human body or not through the information acquired by the first data acquisition module, the second data acquisition module and the third data acquisition module so as to control the operation of the handheld blower.
2. A hand held hair dryer as claimed in claim 1, including a switch button, said switch button controlling the on/off of said hand held hair dryer, having the highest priority.
3. The hand-held hair dryer of claim 1, wherein the hand-held hair dryer has an object blowing mode, the infrared sensor is in an off state when the hand-held hair dryer is in an on state and the object blowing mode is used, and the controller controls the operation of the hand-held hair dryer according to at least one of the signals of the capacitive sensing film and the attitude sensor.
4. The handheld blower according to claim 1, wherein after the handheld blower is turned on, the first data acquisition module receives information of contact between a human body and the handheld blower, detected by the capacitive sensing film, and the first data acquisition module indicates that the handheld blower is not held, and the handheld blower is in a standby state.
5. The handheld blower according to claim 1, wherein after the handheld blower is turned on, the first data acquisition module receives contact information of a human body and the handheld blower, which is detected by the capacitive sensing film, and indicates that the handheld blower is held, and when posture information acquired by the second data acquisition module within a first time threshold indicates that there is no posture change in the handheld blower, the handheld blower is in a standby state.
6. The handheld blower according to claim 1, wherein after the handheld blower is turned on, when the first data acquisition module receives information that a human body is in contact with the handheld blower and detected by the capacitance sensing film, the first data acquisition module indicates that the handheld blower is held, the second data acquisition module acquires gesture information indicating that there is a gesture change in the handheld blower, and the third data acquisition module acquires information about a distance between a human body around the air outlet within a second time threshold, the second data acquisition module indicates that the handheld blower is not facing and approaching the human body, the handheld blower is in a standby state.
7. A hand held hair dryer as claimed in claim 1, wherein said hand held hair dryer is turned off when it remains in a standby state and exceeds a second time threshold.
8. The handheld blower according to claim 1, wherein the handheld blower is kept in a standby state and within a second time threshold, the condition that the first data acquisition module receives contact information of a human body and the handheld blower, which is detected by the capacitance sensing film, and indicates that the handheld blower is held, the second data acquisition module acquires posture information of the handheld blower and indicates that there is a posture change of the handheld blower, and the third data acquisition module acquires human body distance information around the air outlet and indicates that the handheld blower faces and approaches the human body, the handheld blower restores a setting before standby and continues to work.
9. A control method of a hand-held hair drier is characterized by comprising
Monitoring human body holding information of the handheld blower;
acquiring posture information of the handheld blower;
acquiring orientation information of the handheld blower;
when the handheld blower is held, the posture change of the handheld blower meets a first characteristic, and the handheld blower faces and approaches a human body, an executing device of the handheld blower is started.
10. A method of controlling a hand held hair dryer as claimed in claim 9, wherein said first feature comprises: the hand-held hair drier moves for a distance greater than a first distance and/or rotates for an angle greater than a first angle.
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| CN202111013796.0A CN113633085A (en) | 2021-08-31 | 2021-08-31 | Handheld blower and control method |
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| CN114947338B (en) * | 2022-05-31 | 2024-05-31 | 深圳盈特创智能科技有限公司 | Blower and intelligent control method thereof |
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