Noise reduction blower

Abstract

The utility model relates to the technical field of hair dryer equipment, and discloses a noise reduction hair dryer which comprises a shell, a noise reduction device and a noise reduction device, the shell comprises a hair dryer part and a handheld part, the hair dryer part is provided with an air outlet, and the handheld part is provided with an air inlet; the air suction mechanism is arranged in the handheld part, and the air suction mechanism is used for sucking air from the air inlet and exhausting the air from the air outlet; the temperature control mechanism is arranged in the air duct part, and the temperature control mechanism can heat the air sucked by the air suction mechanism; the noise reduction mechanism is arranged in the shell, the noise reduction mechanism can generate reverse-phase waves in the shell, the waveform of the reverse-phase waves is opposite to that of noise, and the reverse-phase waves can be counteracted with the noise. According to the noise reduction blower provided by the embodiment of the invention, active noise reduction can be carried out at the air inlet and the air outlet, and the noise generated in the using process of the blower is reduced through the anti-phase waves which are emitted by the noise reduction mechanism and have the waveform opposite to that of the noise.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hair dryer equipment, and in particular to a noise reduction hair dryer. BACKGROUND

[0002] Traditional hair dryers often produce a lot of noise when running at high speed, which not only affects the comfort of the user, but also may cause inconvenience in situations such as at night or in shared living spaces. Therefore, the research and application of noise reduction technology has become an important direction in the design of hair dryers.

[0003] Some noise reduction hair dryers on the market use physical noise reduction, which is a technology that reduces noise levels by energy dissipation and sound wave absorption during sound wave propagation. Others use digital signal processors to analyze and modify noise signals to reduce the impact of noise. However, the noise reduction effect of both methods is not obvious, and the sources of wind noise are the air inlet and the air outlet. Existing noise reduction hair dryers only reduce noise at one of the noise sources, resulting in unsatisfactory noise reduction effect. CONTENT OF THE INVENTION

[0004] The present application discloses a noise reduction hair dryer that can reduce noise in the hair dryer by identifying noise and generating an inverted wave, thereby increasing the noise reduction effect.

[0005] To achieve the above-mentioned purpose, the present application discloses a noise reduction hair dryer, comprising: a shell, the shell comprising a wind tube part and a handheld part, the wind tube part being provided with an air outlet, and the handheld part being provided with an air inlet; an air suction mechanism, the air suction mechanism being arranged in the handheld part, and the air suction mechanism being used for sucking air from the air inlet and discharging the air from the air outlet; a temperature control mechanism, the temperature control mechanism being arranged in the wind tube part, and the temperature control mechanism being capable of heating the air sucked by the air suction mechanism; and a noise reduction mechanism, the noise reduction mechanism being arranged in the shell, and the noise reduction mechanism being capable of generating an inverted wave with a wave shape opposite to that of noise in the shell, and the inverted wave being capable of canceling out the noise.

[0006] As an optional implementation, the noise reduction mechanism comprises: a collection microphone, the collection microphone being arranged close to the air inlet and the air outlet, and the collection microphone being capable of collecting the noise; a noise reduction module, the noise reduction module being arranged in the shell, the noise reduction module being electrically connected with the collection microphone, and the noise reduction module being capable of receiving the noise collected by the collection microphone and generating an inverted wave signal; and a noise reduction horn, the noise reduction horn being electrically connected with the noise reduction module, and the noise reduction horn being capable of receiving the inverted wave signal and emitting the inverted wave.

[0007] As an optional implementation, the noise reduction module further comprises a power amplifier, and the power amplifier is capable of amplifying the inverted wave signal.

[0008] As an optional implementation, the collecting microphone comprises a first collecting microphone and a second collecting microphone, the noise reduction horn comprises a first noise reduction horn and a second noise reduction horn, the first collecting microphone and the first noise reduction horn are arranged in the air duct part, and the second collecting microphone and the second noise reduction horn are arranged in the handheld part.

[0009] As an optional implementation, the number of the first collecting microphone and the second collecting microphone is one or more.

[0010] As an optional implementation, the plurality of collecting microphones are annularly and spacedly distributed around the air duct part axis.

[0011] As an optional implementation, the air outlet is an annular air outlet.

[0012] As an optional implementation, the collecting microphone is located in the annular air outlet.

[0013] As an optional implementation, the noise reduction module is located in the handheld part, and the noise reduction module is arranged away from the air inlet.

[0014] As an optional implementation, the noise reduction hair dryer further comprises an air inlet filter cover, and the air inlet filter cover is magnetically adsorbed to the air inlet.

[0015] Compared with the prior art, the beneficial effects of the present application are:

[0016] The noise reduction hair dryer provided by the embodiment of the present application can suck air from the air inlet through the air suction mechanism and blow it out from the air outlet after heating by the temperature control mechanism during use. The noise generated in this process can be mutually offset with the opposite phase waves generated by the noise reduction mechanism, so that the noise reduction hair dryer can eliminate noise through the noise reduction mechanism while generating noise due to turbulence, vortex and other phenomena. The noise reduction hair dryer can adjust the opposite phase waves according to the real-time changes of the environmental noise, providing more personalized and more accurate noise reduction effect, and adapting to various different noise environments. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 Structure diagram of the noise reduction hair dryer disclosed by the embodiment of the present application;

[0019] Figure 2Structure schematic diagram two of the noise reduction hair dryer disclosed by the embodiment of the present application;

[0020] Figure 3 For Figure 2 Sectional view along direction A-A.

[0021] Explanation of reference signs:

[0022] 100-noise reduction hair dryer; 1-housing; 11-hair cylinder part; 11a-air outlet; 12-handheld part; 12a-air inlet; 2-temperature control mechanism; 3-noise reduction mechanism; 311-first collection microphone; 312-second collection microphone; 32-noise reduction module; 331-first noise reduction horn; 332-second noise reduction horn; 4-air inlet filter cover. DETAILED DESCRIPTION

[0023] 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. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0024] In the present application, the terms "upper", "lower", "inner", "vertical" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0025] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. Those of ordinary skill in the art can understand the specific meaning of these terms in the present application according to the specific situation.

[0026] In addition, the terms "provided with", "provided with", "connected" should be understood broadly. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication between two devices, elements or components. Those of ordinary skill in the art can understand the specific meaning of the above-mentioned terms in the present application according to the specific situation.

[0027] In addition, the terms "first", "second", and the like are used primarily for the purpose of differentiating one device, element or component from another device, element or component, and do not imply or denote relative importance or quantity of the indicated device, element or component. The meaning of "a plurality" is two or more, unless otherwise specified.

[0028] As an indispensable electrical product in daily life, the performance and user experience of hair dryer are very important. While pursuing high-efficiency drying function, how to improve the comfort of users during use has become one of the important directions of hair dryer design.

[0029] The mechanical noise generated by the rotation of the fan blades driven by the motor and the air noise caused by turbulence and vortex when the air passes through the air inlet and air outlet of the traditional hair dryer during high-speed operation constitute the main noise source of the hair dryer. These noises not only interfere with the user's hearing, but also may interfere with the surrounding environment, especially in situations where silence needs to be maintained, such as at night or in shared living spaces, the noise generated by the hair dryer during use will cause inconvenience to the user.

[0030] Currently, most of the noise reduction technologies for hair dryers use physical noise reduction technology, which reduces energy loss during sound wave propagation or absorbs part of the sound wave energy by using material properties through means such as optimizing product structure, using sound-absorbing and sound-insulating materials, etc., thereby reducing the noise level generated by the hair dryer. However, due to the limitations of material performance, cost factors and the complexity of hair dryer design, the effect of physical noise reduction technology in practical application is limited, and it is difficult to meet the user's demand for low noise. And the source of hair dryer noise is mostly generated at the air inlet and air outlet, and most of the current physical noise reduction technology only reduces noise at one of the sources, and the noise reduction effect is not ideal.

[0031] Based on this, the embodiments of the present application disclose a noise reduction hair dryer, which can solve the problem of noise generated by the hair dryer during use.

[0032] The technical solutions of the present application will be further described below in conjunction with the embodiments and the drawings.

[0033] Please refer to Figures 1 to 3 , Figure 1 is one of the structure schematic diagrams of the noise reduction hair dryer 100 disclosed by the embodiments of the present application; Figure 2 is one of the structure schematic diagrams of the noise reduction hair dryer 100 disclosed by the embodiments of the present application; Figure 3 is Figure 2A-A direction. The embodiments of the present application disclose a noise reduction hair dryer 100, which comprises a shell 1, the shell 1 comprising a wind pipe part 11 and a handheld part 12, the wind pipe part 11 being provided with an air outlet 11a, and the handheld part 12 being provided with an air inlet 12a; an air suction mechanism arranged in the handheld part 12, the air suction mechanism being used for sucking air from the air inlet 12a and discharging the air from the air outlet 11a; a temperature control mechanism 2 arranged in the wind pipe part 11, the temperature control mechanism 2 being capable of heating the air sucked by the air suction mechanism; and a noise reduction mechanism 3 arranged in the shell 1, the noise reduction mechanism 3 being capable of generating an anti-phase wave opposite to a noise wave in the shell 1, and the anti-phase wave being capable of canceling the noise wave.

[0034] The shell 1 is a basic structure of the noise reduction hair dryer 100, which can protect other internal components from dust, moisture and other substances, thereby protecting the noise reduction hair dryer 100 from being damaged and prolonging the service life of the noise reduction hair dryer 100. Meanwhile, the shell 1 can support and fix some components in the noise reduction hair dryer 100.

[0035] The shell 1 comprises the wind pipe part 11 and the handheld part 12. The wind pipe part 11 can guide the flow of air, so that the heated air is effectively blown to a target desired to be dried by a user, thereby achieving the effect of rapid drying. The handheld part 12 is a part of the noise reduction hair dryer 100 held by the user, so that the user can keep a comfortable feeling during a long time of using the noise reduction hair dryer 100.

[0036] Optionally, the surface of the handheld part 12 can be provided with an anti-skid surface, so that the noise reduction hair dryer 100 cannot slip from the user's hand during use of the noise reduction hair dryer 100, thereby preventing damage of the noise reduction hair dryer 100 and improving the user experience and reducing the fatigue of the user during a long time of using the noise reduction hair dryer 100.

[0037] The wind pipe part 11 is provided with the air outlet 11a, which is responsible for blowing the air after being heated and reduced in noise. The handheld part 12 is provided with the air inlet 12a, and the air is sucked into the noise reduction hair dryer 100 from the air inlet 12a. During use of the noise reduction hair dryer 100, the air is sucked into the handheld part 12 from the air inlet 12a, and then flows to the wind pipe part 11 after being heated, filtered or dried in the noise reduction hair dryer 100 and is blown out from the air outlet 11a.

[0038] The noise reduction hair dryer 100 further comprises the air suction mechanism arranged in the handheld part 12, which is used for sucking air from the air inlet 12a and discharging the air from the air outlet 11a. The main function of the air suction mechanism is to generate negative pressure by rotation, suck air from the air inlet 12a of the handheld part 12, and finally blow the air out through the air outlet 11a of the wind pipe part 11 after being heated and filtered.

[0039] Specifically, the air suction mechanism can include one or more fans, and the fans are driven to rotate by the motor. When the fans rotate, the blades of the fans push the surrounding air, thereby forming a low pressure area at the air inlet 12a to attract external air into the handheld portion 12. The air entering the air inlet 12a is then guided to the internal passage of the noise reduction hair dryer 100 for heating, filtering, etc. The processed air is then transported from the internal passage to the air cylinder portion 11 by the rotation of the fan of the air suction mechanism, and blown out from the air outlet 11a.

[0040] The noise reduction hair dryer 100 further comprises a temperature control mechanism 2 arranged in the air cylinder portion 11. When the noise reduction hair dryer 100 is working, external air is sucked into the air inlet 12a by the air suction mechanism and transmitted to the temperature control mechanism 2 through the internal passage. The temperature control mechanism 2 can heat the external air to ensure that the noise reduction hair dryer 100 can blow out heated air and improve the drying efficiency of the noise reduction hair dryer 100.

[0041] Specifically, the temperature control mechanism 2 can include a heating element that can generate heat when powered on and heat the surrounding air. The temperature control mechanism 2 can also include a temperature sensor to monitor the temperature of the heating element or the air in the internal passage in real time, ensuring that the temperature is controlled within a safe and comfortable range.

[0042] Optionally, the temperature control mechanism 2 can be provided with different temperature levels, and the user can adjust the degree of air heating by the temperature control mechanism 2 to adjust the temperature of the air blown out by the noise reduction hair dryer 100, so that the temperature of the hot air blown out by the noise reduction hair dryer 100 is stable and appropriate, avoiding damage to the hair and scalp caused by overheating or overcooling, and improving the user's experience of using the noise reduction hair dryer 100.

[0043] Optionally, the temperature control mechanism 2 can be an element such as an electric heating wire and a ceramic heating element that can heat the surrounding air, and the present embodiment does not limit this.

[0044] The noise reduction hair dryer 100 further comprises a noise reduction mechanism 3 arranged in the housing 1. The noise reduction mechanism 3 can generate anti-phase waves opposite to the noise waves in the housing 1. These anti-phase waves have opposite phases and similar amplitudes to the noise waves. When the anti-phase waves meet the noise waves generated during the operation of the noise reduction hair dryer 100, they will cancel each other out, thereby eliminating the noise waves generated during the use of the noise reduction hair dryer 100, reducing the noise generated during the use of the noise reduction hair dryer 100, and improving the comfort of the user using the noise reduction hair dryer 100.

[0045] It can be understood that, compared with physical structure noise reduction, the noise reduction hair dryer 100 provided by the embodiments of the present application has less restriction on the physical design of the device, and can design the appearance and structure of the device more freely without sacrificing the noise reduction effect, thereby improving the portability and aesthetics. Compared with achieving noise reduction by increasing physical structures, the noise reduction hair dryer 100 provided by the embodiments of the present application can avoid adding too many physical components, thereby maintaining the miniaturization and lightness of the noise reduction hair dryer 100.

[0046] Optionally, the noise reduction mechanism 3 can include a device for real-time detection of noise to ensure that the anti-phase wave generated by the noise reduction mechanism 3 can maintain the opposite phase and similar amplitude of the noise, thereby ensuring that the anti-phase wave and the noise can effectively cancel each other out, improving the user's experience.

[0047] In this way, the noise reduction hair dryer 100 provided by the embodiments of the present application can suck air from the air inlet 12a during use and blow it out from the air outlet 11a after heating by the temperature control mechanism 2. The noise generated in this process can be canceled by the anti-phase wave generated by the noise reduction mechanism 3, so that the noise reduction hair dryer 100 can eliminate noise through the noise reduction mechanism 3 while generating noise due to turbulence, vortex and other phenomena. The noise reduction hair dryer 100 can adjust the anti-phase wave according to the real-time changes of the environmental noise, providing more personalized and more accurate noise reduction effect, adapting to various different noise environments.

[0048] Please refer to Figure 3 In some embodiments, the noise reduction mechanism 3 includes a collection microphone, which is arranged close to the air inlet 12a and the air outlet 11a. The collection microphone is responsible for collecting the noise generated by the noise reduction hair dryer 100 during operation.

[0049] The air inlet 12a is one of the main sources of noise of the noise reduction hair dryer 100. When air is sucked in at high speed by the air suction mechanism, noise may be generated due to turbulence, vortex and other phenomena. The air outlet 11a may generate noise when air is blown out at high speed by the air suction mechanism.

[0050] The collection microphone is arranged close to the air inlet 12a and the air outlet 11a to ensure that the collection microphone can comprehensively capture the noise generated by the noise reduction hair dryer 100, improve the collection accuracy of the noise signal, prevent incomplete noise collection due to the collection microphone being too far away from the air inlet 12a and the air outlet 11a, and avoid signal attenuation and distortion due to the distance being too far, thereby ensuring the accuracy and effectiveness of subsequent noise reduction processing.

[0051] The collection microphone can convert the collected noise into an electrical signal and transmit it to the noise reduction module 32 for processing. The noise reduction module 32 is arranged in the shell 1, and the noise reduction module 32 is electrically connected with the collection microphone. The noise reduction module 32 can receive the electrical signal transmitted by the collection microphone.

[0052] After the noise signal is collected by the noise reduction module 32, the noise signal is first pre-processed (for example: filtering, amplification, noise reduction, etc.) to improve the quality of the noise signal and reduce the impact of noise on the electrical signal. Then the noise reduction module 32 can analyze and process the extracted noise spectrum, amplitude and phase parameters, and establish a noise model to describe the statistical characteristics and time-varying nature of the noise.

[0053] The noise reduction module 32 can generate a waveform opposite to the noise based on the established noise model and the characteristic parameters of the noise, that is, a waveform opposite in phase and similar in amplitude to the noise, for canceling the noise sound wave and achieving the purpose of eliminating noise.

[0054] The noise reduction mechanism 3 also includes a noise reduction horn, which is arranged inside the noise reduction blower 100 and is electrically connected to the noise reduction module 32. The noise reduction horn can receive the anti-phase wave signal and emit the anti-phase wave. After the noise reduction module 32 generates the anti-phase wave, it can transmit the anti-phase wave signal to the noise reduction horn, which converts the received anti-phase wave signal into a sound wave signal and transmits it to the outside.

[0055] When the noise reduction horn emits the anti-phase wave sound signal, the anti-phase wave sound wave will meet the original noise sound wave in space. Since the anti-phase wave and the noise sound wave are opposite in phase, they will interfere with each other, thereby canceling the noise sound wave and achieving the purpose of noise reduction.

[0056] Please refer to Figure 3 In some embodiments, the noise reduction module 32 also includes a power amplifier that can amplify the anti-phase wave signal. The power amplifier is used to amplify the anti-phase wave signal generated by the noise reduction module 32 to ensure that the anti-phase wave signal has sufficient strength and energy when emitted through the noise reduction horn, thereby effectively canceling the original noise.

[0057] Specifically, the power amplifier receives the anti-phase wave electrical signal output by the noise reduction module 32 and uses electronic components (such as transistors, integrated circuits, etc.) inside the power amplifier to perform signal amplification processing. During amplification, the power amplifier maintains the phase and waveform of the anti-phase wave signal unchanged, and only increases the amplitude of the anti-phase wave signal, that is, only increases the size of the anti-phase wave signal voltage or current, to ensure that the anti-phase wave signal can match the original noise when emitted and effectively cancel it.

[0058] Please refer to Figure 3 In some embodiments, the collection microphone includes a first collection microphone 311 and a second collection microphone 312, and the noise reduction horn includes a first noise reduction horn 331 and a second noise reduction horn 332. The first collection microphone 311 and the first noise reduction horn 331 are arranged in the air duct part 11, and the second collection microphone 312 and the second noise reduction horn 332 are arranged in the handheld part 12.

[0059] The first collection microphone 311 is arranged inside the air duct part 11 to collect the noise generated at the air outlet 11a, so that the noise at the air outlet 11a can be transmitted to the noise reduction module 32. The first noise reduction horn 331 is also arranged inside the air duct part 11 to convert the anti-phase wave signal generated by the noise reduction module 32 into a sound wave signal and cancel the noise at the air outlet 11a.

[0060] The second collection microphone 312 is arranged inside the handheld part 12 to collect the noise generated at the air inlet 12a, so that the noise at the air inlet 12a can be transmitted to the noise reduction module 32. The second noise reduction horn 332 is also arranged inside the handheld part 12 to convert the anti-phase wave signal generated by the noise reduction module 32 into a sound wave signal and cancel the noise at the air inlet 12a.

[0061] The air inlet 12a and the air outlet 11a use the first collection microphone 311, the second collection microphone 312, and the first noise reduction horn 331, the second noise reduction horn 332 to enable the noise reduction module 32 to simultaneously receive the noise signals at the air outlet 11a and the air inlet 12a, so as to simultaneously perform active noise reduction processing at the air outlet 11a and the air inlet 12a, thereby improving the noise reduction effect of the noise reduction hair dryer 100 and avoiding the problem of incomplete noise elimination caused by only performing noise reduction processing at the air outlet 11a or the air inlet 12a.

[0062] Please refer to Figure 3 In some embodiments, the number of first collection microphones 311 and second collection microphones 312 is one or more. By increasing the number of first collection microphones 311 and second collection microphones 312, more comprehensive noise capture and more accurate noise reduction effect can be achieved. Multiple first collection microphones 311 can work cooperatively to ensure that the noise at the air outlet 11a can be completely collected. At the same time, multiple second collection microphones 312 can work cooperatively to ensure that the noise at the air inlet 12a can also be completely collected.

[0063] The noise signals transmitted by the multiple first collection microphones 311 and the multiple second collection microphones 312 to the noise reduction module 32 enable the noise reduction module 32 to compare and analyze the noise signals captured at different positions, more accurately identify the noise sources that need to be eliminated, and generate corresponding anti-phase wave signals for anti-phase wave and noise sound wave cancellation.

[0064] Please refer to Figure 3In some embodiments, the plurality of collection microphones are annularly spaced around the axis of the air duct portion 11. The annularly spaced plurality of collection microphones around the air duct portion 11 can collect noise from different directions and angles, and convert the noise into electrical signals to the noise reduction module 32. The annularly spaced plurality of collection microphones around the axis of the air duct portion 11 can more accurately identify noise, providing data support for subsequent noise reduction processing.

[0065] By comparing and analyzing the noise signals captured by the collection microphones at different positions, the noise reduction module 32 can more accurately identify the noise components that need to be eliminated, so that the noise reduction module 32 generates more accurate anti-phase wave signals to achieve more efficient noise cancellation, reduce noise interference during use, and improve the user's experience.

[0066] Referring back to Fig. 10 Figure 1 In some embodiments, the air outlet 11a is an annular air outlet 11a. The annular air outlet 11a allows air to flow more concentratedly when leaving the noise reduction hair dryer 100, thereby better controlling the direction and speed of air flow, reducing air dispersion and turbulence, and improving the efficiency of the noise reduction hair dryer 100.

[0067] At the same time, the design of the annular air outlet 11a allows the air to form a relatively uniform air layer when blown out, reducing vortex and turbulence caused by uneven air. Vortex and turbulence are one of the main causes of noise, and the reduction of vortex and turbulence can reduce the noise at the air outlet 11a of the noise reduction hair dryer 100, and also improve the energy efficiency and stability of the noise reduction hair dryer 100.

[0068] In addition, the uniform air blown out by the annular air outlet 11a can also provide a more comfortable hair drying experience for the user, avoiding local overheating or overcooling caused by uneven air.

[0069] Referring back to Fig. 10 Figure 3 In some embodiments, the collection microphones are located within the annular air outlet 11a, so that the collection microphones are close to the source of noise generation, thereby ensuring that the collection microphones more accurately capture the noise generated by the air outlet 11a itself, including turbulence sound and vibration sound generated when air passes through the air outlet 11a, improving the accuracy and efficiency of noise reduction processing of the noise reduction hair dryer 100.

[0070] At the same time, placing the collection microphones near the noise source can make the noise reduction mechanism 3 respond and process noise signals faster, thereby ensuring that the noise reduction module 32 can generate more accurate anti-phase wave signals to cancel the noise generated by the air outlet 11a, and improve the user's experience during the hair drying process.

[0071] In addition, the collection of the microphone is placed in the air outlet 11a, can be in the premise of not interfering with the air flow, the noise is effectively captured and processed. This design in maintaining the air stability and uniformity, but also takes into account the demand for noise reduction effect.

[0072] Please refer to Figure 3 In some embodiments, the noise reduction module 32 is located in the handheld part 12, and the noise reduction module 32 is arranged away from the air inlet 12a. When the noise reduction hair dryer 100 is working, the air inlet 12a will suck a large amount of air, and these air will produce noise when passing through the motor and other components. Arranging the noise reduction module 32 away from the air inlet 12a can separate the air flow channel and the noise processing channel, avoid the air flow noise generated when the air inlet 12a directly interferes with the work of the noise reduction module 32, and improve the noise reduction effect.

[0073] At the same time, placing the noise reduction module 32 in the handheld part 12 can make full use of the space resources of the handheld part 12, so that the space inside the noise reduction hair dryer 100 is reasonably utilized, and the miniaturization of the noise reduction hair dryer 100 is achieved. In addition, placing the noise reduction module 32 in the handheld part 12 can also avoid interfering with other key components of the noise reduction hair dryer 100, so as to maximize the noise reduction effect.

[0074] Please refer to Figure 3 In some embodiments, the noise reduction hair dryer 100 further comprises an air inlet 12a filter cover. The main function of the air inlet 12a filter cover is to filter the dust, hair and other impurities in the air entering the inside of the noise reduction hair dryer 100, so as to protect the key components such as the air suction mechanism, the temperature control mechanism 2 and the noise reduction mechanism 3 inside the noise reduction hair dryer 100 from being polluted, thereby prolonging the service life of the noise reduction hair dryer 100.

[0075] The air inlet 12a filter cover is magnetically adsorbed to the air inlet 12a. The design of magnetic adsorption makes the installation and disassembly of the air inlet 12a filter cover more simple and fast. The user does not need to use tools or complex operation steps, but only needs to approach the filter cover to the air inlet 12a, and can be fixed by using magnetic force. Similarly, when it is necessary to clean or replace the filter cover, the air inlet 12a filter cover can also be taken down by gently pulling. The simple installation and disassembly process reduces the maintenance difficulty of the air inlet 12a filter cover of the noise reduction hair dryer 100, and improves the user's experience.

[0076] At the same time, the magnetic adsorption of the air inlet 12a filter cover ensures that the air inlet 12a filter cover can be stably fixed on the air inlet 12a during use, so as to prevent the air inlet 12a filter cover from shaking or falling off due to air flow or vibration generated during use of the noise reduction hair dryer 100, thereby ensuring the normal work and filtering effect of the noise reduction hair dryer 100.

[0077] In addition, the magnetic adsorption of the air inlet 12a filter cover can also reduce the noise caused by the loosening or displacement of the air inlet 12a filter cover, further reducing the possibility of noise generated by the noise reduction hair dryer 100.

[0078] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A noise-reducing hair dryer, characterized in that, The noise reduction hair dryer comprises: a housing comprising a barrel portion and a hand-held portion, the barrel portion being provided with an air outlet, and the hand-held portion being provided with an air inlet; an air suction mechanism arranged in the hand-held portion, the air suction mechanism being configured to suck air from the air inlet and discharge the air from the air outlet; a temperature control mechanism arranged in the barrel portion, the temperature control mechanism being configured to heat the air sucked by the air suction mechanism; a noise reduction mechanism arranged in the housing, the noise reduction mechanism being configured to generate an anti-phase wave with an opposite waveform to the noise in the housing, and the anti-phase wave being configured to cancel the noise.

2. The noise reducing hair dryer of claim 1, wherein, The noise reduction mechanism comprises: a collection microphone arranged close to the air inlet and the air outlet, the collection microphone being configured to collect the noise; a noise reduction module arranged in the housing, the noise reduction module being electrically connected to the collection microphone, the noise reduction module being configured to receive the noise collected by the collection microphone and generate an anti-phase wave signal; a noise reduction horn electrically connected to the noise reduction module, the noise reduction horn being configured to receive the anti-phase wave signal and emit the anti-phase wave.

3. The noise reducing hair dryer of claim 2, wherein, The noise reduction module further comprises a power amplifier configured to amplify the anti-phase wave signal.

4. The noise reducing hair dryer of claim 2, wherein, The collection microphone comprises a first collection microphone and a second collection microphone, and the noise reduction horn comprises a first noise reduction horn and a second noise reduction horn, the first collection microphone and the first noise reduction horn being arranged in the barrel portion, and the second collection microphone and the second noise reduction horn being arranged in the hand-held portion.

5. The noise reducing hair dryer of claim 4, wherein, The number of the first collection microphone and the second collection microphone is one or more.

6. The noise reducing hair dryer of claim 5, wherein, The plurality of collection microphones are annularly and spacedly distributed around an axis of the barrel portion.

7. The noise reducing hair dryer of claim 2, wherein, The air outlet is an annular air outlet.

8. The noise reducing hair dryer of claim 7, wherein, The collection microphone is located in the annular air outlet.

9. The noise reducing hair dryer of claim 2, wherein, The noise reduction module is located in the hand-held portion, and the noise reduction module is arranged away from the air inlet.

10. The noise reducing hair dryer of claim 1, wherein, The noise reduction hair dryer further comprises an air inlet filter cover, and the air inlet filter cover is magnetically adsorbed to the air inlet.

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