WO2023078365A1

WO2023078365A1 - Accessory and hair care device

Info

Publication number: WO2023078365A1
Application number: PCT/CN2022/129622
Authority: WO
Inventors: 邱云峰; 牛康; 蒲立恒
Original assignee: 深圳素士科技股份有限公司
Priority date: 2021-11-05
Filing date: 2022-11-03
Publication date: 2023-05-11
Also published as: CN114098257A

Abstract

An accessory and a hair care device. The accessory is provided with a fluid channel (100) and a communication cavity (200). The accessory comprises a sound-absorbing piece (10) that is provided with a sound-absorbing cavity (300). The communication cavity (200) is used for communicating the fluid channel (100) with the sound-absorbing cavity (300). The hair care device comprises a body portion and an accessory. When the hair care device is in operation, acoustic waves formed by a generated fluid passing through the fluid channel (100) may be transmitted to the communication cavity (200), so that the fluid column in the communication cavity (200) generates vibrations and forms resonance with the acoustic waves, and then the acoustic energy of the acoustic wave is converted into heat energy by means of friction damping generated by the vibration of the fluid column, thereby reducing the noise generated when the fluid passes through the fluid channel (100). Furthermore, the communication cavity communicates with the sound-absorbing cavity, so that the fluid column may be extended and expanded in volume, thereby expanding the volume of a resonance system which resonates with the acoustic waves, and further improving the noise reduction effect of the accessory. Meanwhile, the sound-absorbing cavity and the communication cavity may be designed to achieve quantitative elimination of noise of a specific frequency.

Description

Accessories and hair care equipment

This application claims the priority of the Chinese invention patent application with the application number "202111307668.7", the application date is "November 5, 2021", and the invention title is "Accessories and Hair Care Equipment".

technical field

The present application relates to the field of hair care equipment, in particular to an accessory and hair care equipment.

Background technique

Hair care devices can generate loud noises as fluid passes through the fluid channels, resulting in a poor user experience with the hair care device.

Contents of the invention

Based on this, it is necessary to provide an accessory and a hair care device, aiming at solving the technical problem of high noise generated when the fluid passes through the fluid channel.

In order to solve the above-mentioned technical problems, the technical scheme 1 adopted by this application is as follows:

An accessory for hair care equipment, the accessory is provided with a fluid channel and a communication cavity, the fluid channel runs through the accessory, the accessory includes a sound-absorbing part, the sound-absorbing part is provided with a sound-absorbing cavity, and the communicating cavity Used to communicate the fluid channel with the sound-absorbing cavity.

In some embodiments of the accessory, an end of the communicating cavity away from the fluid channel is pierced through the sound-absorbing member to communicate with the sound-absorbing cavity.

In some embodiments of the accessory, one of the fluid channel and the muffler cavity surrounds the other.

In some embodiments of the accessory, the sound-absorbing member includes at least one of a first sound-absorbing member and a second sound-absorbing member, the first sound-absorbing member is arranged around the fluid passage, and the fluid passage is arranged around on the second sound-absorbing element.

In some embodiments of the accessory, when the sound-absorbing member includes the first sound-absorbing member, the sound-absorbing chamber includes a first sound-absorbing chamber provided in the first sound-absorbing member, and the communicating chamber includes a A first communication cavity between the fluid channel and the first sound-absorbing cavity.

In some embodiments of the accessory, the first sound-absorbing cavity is annular and arranged around the fluid channel; and/or

The number of the first communication cavity is one or more.

In some embodiments of the accessory, the first muffler includes a plurality of first mufflers, the multiple first mufflers are ring-shaped and arranged around the fluid channel, and the first muffler cavity Formed in the first muffler part, the number of the first communication cavities is plural, one end of the plurality of first communication cavities communicates with the fluid channel, and each of the first muffler cavities communicates with at least one of the first muffler cavities. The end of the first communication cavity away from the fluid channel is connected.

In some embodiments of the accessory, the accessory includes a first housing, the first sound-absorbing member is disposed on the first housing, and the first housing ring is disposed on the fluid passage, the The first communication cavity is formed in the first casing.

In some embodiments of the accessory, the first housing includes a first body and a first protrusion, and the first communication cavity sequentially passes through the first body and the first body from the side of the fluid channel. The first protruding part communicates with the first muffler cavity, and the first protruding part is inserted into the first muffler part.

In some embodiments of the accessory, the first sound-absorbing member is spaced apart from the first body.

In some embodiments of the accessory, a second protrusion is provided on the first sound-absorbing member, and the second protrusion abuts against the first body, so that the first sound-absorbing member and The first bodies are arranged at intervals.

In some embodiments of the accessory, the second raised portion is disposed around the first raised portion.

In some embodiments of the accessory, the first casing further includes an attachment portion, the accessory further includes a second casing, and the first casing and the second casing surround to form a receiving space , the first sound-absorbing member is accommodated in the accommodation space and attached to the attached portion and the second housing respectively; and/or

The accessory also includes a third housing, the fluid passage is ring-shaped on the third housing, and the fluid passage is located between the first housing and the third housing.

In some embodiments of the accessory, the accessory further includes a third housing, the fluid passage is located between the first sound dampening member and the third housing.

In some embodiments of the accessory, a plurality of the first silencing parts are arranged at intervals, and the accessory further includes a spacer between adjacent first silencing parts, and the spacer is arranged on the first silencing part. a shell.

In some embodiments of the accessory, the accessory further includes a second housing, the first housing and the second housing surround and form a receiving space, and the first noise reduction part is accommodated in the receiving space. space and is attached to the second casing.

In some embodiments of the accessory, the second housing is provided with a mounting column, and the mounting column is passed between the adjacent first sound-absorbing parts, and the first housing is provided with Mounting holes corresponding to the mounting posts.

In some embodiments of the accessory, the mounting column is provided with an arc surface on a side facing the first noise reduction part.

In some embodiments of the accessory, when the sound-absorbing member includes the second sound-absorbing member, the sound-absorbing chamber includes a second sound-absorbing chamber provided in the second sound-absorbing member, and the communication chamber includes a A second communication cavity between the fluid channel and the second sound-absorbing cavity.

In some embodiments of the accessory, the number of the second communication cavity is one or more.

In some embodiments of the accessory, when there are multiple second communication cavities, the plurality of second communication cavities are arranged staggered along the radial direction of the second muffler cavity.

In some embodiments of the accessory, the second sound-absorbing member includes a plurality of second sound-absorbing parts, the second sound-absorbing chamber is formed in the second sound-absorbing part, and the number of the second communicating chambers is a plurality of One end of the plurality of second communication cavities communicates with the fluid channel, and each of the second mufflers communicates with an end of at least one second communication cavity away from the fluid channel.

In some embodiments of the accessory, the accessory includes a third housing, the second noise reduction member is arranged on the third housing, the fluid channel ring is arranged on the third housing, the The second communication cavity is formed in the third housing.

In some embodiments of the accessory, the accessory further includes a first housing, the fluid channel is located between the first housing and the second sound dampening member.

In some embodiments of the accessory, the accessory further includes a first housing, the fluid channel being located between the first housing and the third housing.

In some embodiments of the accessory, a connecting portion is provided on the third housing, and the connecting portion protrudes outward relative to the fluid channel in a direction away from the air outlet end of the accessory.

In some embodiments of the accessory, the first shell and the third shell of the accessory are spaced apart to form the fluid channel, and the first shell and the third shell are detachable connect.

In some embodiments of the accessory, sound-absorbing materials are accommodated in the sound-absorbing cavity.

In some embodiments of the accessory, the structure of the sound-absorbing cavity and/or the communicating cavity can be designed to achieve quantitative elimination of sound waves of a specific frequency.

In some embodiments of the accessory, the number of the sound-absorbing cavities is multiple, and the multiple sound-absorbing cavities and the communicating cavities connected thereto form multiple resonance systems, and multiple resonance systems can eliminate the same frequency sound waves or sound waves of different frequencies.

In order to solve the above technical problems, the second technical solution adopted by the application is:

A hair care device, comprising: a body; and an accessory according to any one of the above embodiments, the accessory being connected to the body.

Implementing the embodiment of the present application will have the following beneficial effects:

The accessories of the above solution are applied to the hair care equipment. In addition to making the hair care equipment have excellent styling care performance, it also has a noise reduction effect, which can reduce the noise generated when the fluid passes through the fluid channel, thereby improving user experience. Specifically, the accessory is provided with a fluid channel and a communication chamber. The fluid passage runs through the attachment such that fluid can flow out of the attachment through the fluid passage for styling hair care. Further, the accessory includes a sound-absorbing member provided with a sound-absorbing cavity. The communication cavity is used to communicate the fluid channel with the sound-absorbing cavity. When the hair care equipment is working, the generated fluid passes through the fluid channel to form sound waves that can be transmitted to the communication cavity, causing the fluid column in the communication cavity to vibrate and resonate with the sound wave, and then the frictional damping generated by the fluid column vibration converts the sound energy of the sound wave into heat energy, thereby reducing the noise generated when the fluid passes through the fluid channel. Furthermore, the communication cavity communicates with the sound-absorbing cavity, which can extend the fluid column and enlarge the volume, thereby expanding the volume of the resonance system resonating with the sound wave, and further improving the noise reduction effect of the accessory. At the same time, the anechoic chamber and the connecting chamber can be designed to achieve quantitative elimination of noise of a specific frequency.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

in:

Figure 1 is an axial view of an accessory in one embodiment;

Fig. 2 is an explosion schematic diagram of the accessory shown in Fig. 1;

Fig. 3 is a schematic diagram of the enlarged structure of part A in Fig. 2;

Fig. 4 is a schematic diagram of the enlarged structure of part B in Fig. 2;

Fig. 5 is a schematic diagram of the enlarged structure of part C in Fig. 2;

Fig. 6 is a half-sectional view of the accessory shown in Fig. 1;

FIG. 7 is a schematic diagram of an enlarged structure of part D in FIG. 6 .

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

It should be noted that, in the case of no conflict, the features in the embodiments of the present application may be combined with each other.

In order to solve the above technical problems, the present application provides a hair care device. The hair care appliance includes a body (not shown) and accessories. The attachment is connected to the body. The body is capable of providing fluid to the accessory. Fluids include, but are not limited to, hot fluids and/or cold fluids. For example, gas or steam heated to a predetermined temperature. The gas can be a single component gas or a multicomponent gas. Of course, in other embodiments of the present application, the hair care device can also be used for styling and caring for beards, or for styling and processing of workpieces, which is not limited here.

Specifically, please refer to FIG. 1 , FIG. 2 and FIG. 6 . The accessory is provided with a fluid channel 100 and a communication cavity 200 , the fluid channel 100 runs through the accessory, and the accessory includes a sound-absorbing member 10 , and the sound-absorbing member 10 is provided with a sound-absorbing chamber 300 . The communication cavity 200 is used to communicate the fluid channel 100 with the sound-absorbing cavity 300 .

To sum up, the implementation of the embodiment of the present application will have the following beneficial effects: when the accessories of the above scheme are applied to the hair care equipment, in addition to making the hair care equipment have excellent styling care performance, it also has a noise reduction effect, which can The noise generated when the fluid passes through the fluid channel 100 is reduced, thereby improving user experience. Specifically, the accessory is provided with a fluid channel 100 and a communication chamber 200 . The fluid channel 100 runs through the accessory, so that fluid can flow out of the accessory through the fluid channel 100 for hair styling care. Further, the accessory includes a sound-absorbing member 10 provided with a sound-absorbing chamber 300 . The communication cavity 200 is used to communicate the fluid channel 100 with the sound-absorbing cavity 300 . When the hair care device is working, the generated fluid passes through the fluid channel 100 to form sound waves that can be transmitted to the communication cavity 200, causing the fluid column in the communication cavity 200 to vibrate and resonate with the sound waves, and then frictional damping is generated by the vibration of the fluid column to reduce the sound waves. The acoustic energy is converted into thermal energy, thereby reducing the noise generated by the fluid passing through the fluid channel 100 . Furthermore, the communication chamber 200 communicates with the sound-absorbing chamber 300 , which can extend the fluid column and enlarge the volume, thereby expanding the volume of the resonance system that resonates with the sound wave, and further improving the noise reduction effect of the accessory. At the same time, the structure of the sound-absorbing cavity 300 and/or the communicating cavity 200 can be designed to achieve quantitative elimination of sound waves of a specific frequency. In this embodiment, the fluid column is an air column.

In one embodiment, the hair care device is a hair dryer, and the accessory is a nozzle with noise reduction function. The air nozzle and the hair dryer are integrally formed, or the air nozzle and the hair dryer are detachably connected (such as magnetic connection, buckle connection). It should be noted that the hair dryer is only an example of hair care equipment, and should not be used as a limitation to the hair care equipment of this application. Likewise, the tuyere is only an example of an accessory, and cannot be used as a limitation to the accessory of the present application.

In one embodiment, as shown in FIG. 6 and FIG. 7 , the end of the communication cavity 200 away from the fluid channel 100 is pierced through the sound-absorbing member 10 to communicate with the sound-absorbing cavity 300 . That is, there is an overlapping area between the sound-absorbing member 10 and the communication cavity 200 along the sound wave transmission direction, and the sound-absorbing member 10 can wrap the above-mentioned overlapping area, so that the vibration generated by the fluid column can not only be transmitted to the sound-absorbing chamber 300 through the fluid, but also Vibration is transmitted to the sound-absorbing chamber 300 through the fluid column acting on the sound-absorbing member 10, which further improves the resonance effect and further improves the noise reduction effect of the accessory. At the same time, wrapping the overlapping area by the sound-absorbing member 10 can also prevent the vibration of the sound-absorbing member 10 from being restricted, for example, by the structure forming the communication cavity 200 . It can be understood that in other embodiments, the sound-absorbing chamber 300 can also extend into the communication chamber 200 to form an overlapping area to communicate with the communication chamber 200 . The vibration is mainly swinging around the overlapping area. In addition, there may be no overlapping area between the communicating chamber 200 and the muffler chamber 300 , and only the fluid transmits the vibration into the muffler chamber 300 . Further, by designing the sound-absorbing cavity 300 and the communicating cavity 200, the frequency of the sound wave is the same as the natural frequency of the resonant system, that is, the Helmholtz resonant cavity, and the vibration of the air column is the strongest. Noise works best. The design of the muffler chamber 300 and the communication chamber 200 includes but not limited to the design of the shape, the volume of the muffler chamber 300 , the diameter of the communication chamber 200 , and the depth of the communication chamber 200 . It should be noted that, in actual design, only one of the above parameters may be designed, or multiple parameters among the above parameters may be designed, which is not limited here.

In one embodiment, one of the fluid passage 100 and the muffler chamber 300 is disposed around the other, that is, the fluid passage 100 may be disposed around the muffler chamber 300 or the muffler chamber 300 may be disposed around the fluid passage 100 . When there are two sound-absorbing chambers 300 , one of the sound-absorbing chambers 300 is arranged around the fluid passage 100 , and the fluid passage 100 is arranged around the other sound-absorbing chamber 300 . When the number of fluid passages 100 is two, one of the fluid passages 100 is arranged around the muffler chamber 300 , and the muffler chamber 300 is arranged around the other fluid passage 100 . When the number of muffler chambers 300 is multiple and the number of fluid channels 100 is multiple, a plurality of muffler cavities 300 are provided one-to-one around a plurality of fluid channels 100 or a plurality of fluid channels 100 are arranged one-to-one around a plurality of muffler cavities 300 set up. Of course, the positional relationship between the muffler chamber 300 and the fluid channel 100 may not be such that one surrounds the other. For example, in other embodiments, the muffler cavity 300 and the fluid channel 100 may also be placed in a left-right positional relationship, which is not limited herein.

Further, the sound-absorbing member 10 includes at least one of a first sound-absorbing member 10 a and a second sound-absorbing member, the first sound-absorbing member 10 a is arranged around the fluid passage 100 , and the fluid passage 100 is arranged around the second sound-absorbing member. That is, the sound-absorbing element 10 may only include the first sound-absorbing element 10a, or only include the second sound-absorbing element, or include both the first sound-absorbing element 10a and the second sound-absorbing element. Wherein, when the sound-absorbing member 10 includes the first sound-absorbing member 10a and the second sound-absorbing member, the accessory includes two sound-absorbing chambers 300, and the two sound-absorbing chambers 300 are respectively provided with a communication chamber 200 communicating with the fluid channel 100, thereby forming a Two interconnected resonance systems of the muffler cavity 300 and the communication cavity 200 . By designing the two resonance systems separately, the two resonance systems can eliminate sound waves of the same frequency or sound waves of different frequencies. That is, when there are multiple sound-absorbing cavities 300 , the multiple sound-absorbing cavities 300 and the communicating cavities 200 connected thereto form multiple resonance systems. Multiple resonance systems can cancel sound waves of the same frequency or sound waves of different frequencies. For the convenience of description, the silencing cavity 300 located on the first silencing member 10a is referred to as the first silencing cavity 300a, the silencing cavity 300 located on the second silencing component is called the second silencing cavity, and the silencing cavity 300 connected to the first silencing cavity 300a is called the first silencing cavity 300a. The communicating chamber 200 is the first communicating chamber 200a, and the communicating chamber 200 communicating with the second muffler chamber is called the second communicating chamber.

In one embodiment, when the sound-absorbing element 10 includes the first sound-absorbing element 10a, the sound-absorbing chamber 300 includes the first sound-absorbing chamber 300a disposed on the first sound-absorbing element 10a. The communication chamber 200 includes a first communication chamber 200a communicating between the fluid channel 100 and the first muffler chamber 300a. Further, the first noise-absorbing member 10a is a continuous annular structure, and its specific shape can match the outer edge of the fluid channel 100, so as to be closer to the fluid channel 100, so that the first communication cavity 200a connects the first noise-absorbing cavity 300a with the fluid channel. 100 communication, at the same time, the first communication cavity 200a can be shortened, the contact area between the fluid column and the accessory can be reduced, and the vibration of the fluid column can prevent the accessory from vibrating too much and affecting the user experience. Further, the first sound-absorbing member 10a can be used to limit the outer edge of the fluid passage 100, and at this time, the first communication chamber 200a is formed on the first sound-absorbing member 10a.

Further, the number of the first communication cavity 200a is one or more. If there are multiple first communication cavities 200a, the plurality of first communication cavities 200a are evenly distributed around the fluid channel 100, and the specific shape of the aforementioned first muffler 10a can match the outer edge of the fluid channel 100 And the specific shape of the first muffler cavity 300a can match with the outer edge of the fluid channel 100 to ensure that the noise reduction effect of the peripheral direction of the fluid channel 100 is similar, further improving the overall noise reduction effect.

Further, if there are multiple first communication cavities 200a, in addition to the first communication cavities 200a surrounding the fluid channel 100, the plurality of first communication cavities 200a also include axial distribution along the fluid channel 100 and/or The first communication cavities 200 a are staggered along the axial direction of the fluid channel 100 .

In one embodiment, the first muffler cavity 300 a is annular and disposed around the fluid channel 100 , and the specific shape of the first muffler cavity 300 a can match the outer edge of the fluid channel 100 . Exemplarily, as shown in FIG. 2 and FIG. 6 , the first noise-absorbing member 10 a includes a plurality of first noise-absorbing portions 10 a 1 . The plurality of first mufflers 10 a 1 are annular and arranged around the fluid channel 100 . The first muffler cavity 300a is formed in the first muffler portion 10a1. There are multiple first communication cavities 200a, and one end of the plurality of first communication cavities 200a communicates with the fluid channel 100 . Each first muffler cavity 300 a communicates with an end of at least one first communication cavity 200 a away from the fluid channel 100 . In this embodiment, each first muffler cavity 300a communicates with one end of each first communication cavity 200a away from the fluid channel 100 one by one. The plurality of first mufflers 10a1 are distributed in a ring shape and are spaced apart from each other. The fluid channel 100 is in the shape of a ring, and the shapes of the first silencing parts 10a1, the shapes of the first silencing cavities 300a, and the shapes of the first communicating cavities 200a are all the same, which can ensure the noise reduction effect of the fluid channel 100 in all directions. Similarly, the best noise reduction effect can be achieved by designing the first noise reduction chamber 300a and the first communication chamber 200a. It can be understood that in other embodiments, the shape of each first silencing portion 10a1, the shape of each first silencing cavity 300a, and the shape of each first communicating cavity 200a may be different, so as to form multiple resonance systems with different structures, so as to Ability to cancel sound waves of different frequencies. In addition, in other embodiments, each first muffler chamber 300a may also communicate with two or more first communicating chambers 200a at ends away from the fluid channel 100 .

In one embodiment, please refer to FIG. 1 , FIG. 2 and FIG. 6 , the accessory includes a first housing 20 . The first muffler 10 a is disposed on the first housing 20 . The first shell 20 is disposed around the fluid channel 100 , so that the shape of the outer edge of the fluid channel 100 can be limited. Further, the first communication chamber 200 a is formed in the first housing 20 . The arrangement of the first housing 20 can ensure the stability of the outer shape of the fluid passage 100, avoid the vibration of the first noise reduction member 10a from affecting the shape of the fluid passage 100, generate sound waves of extra frequencies, and reduce the noise reduction effect. Further, the first sound-absorbing member 10a can be a continuous ring structure or include a plurality of first sound-absorbing parts 10a1 distributed in a ring and spaced apart from each other.

In one embodiment, please refer to FIG. 2 and FIG. 6 , the first housing 20 includes a first body 21 and a first protrusion 22 . The first communication chamber 200a passes through the first body 21 and the first protrusion 22 sequentially from the side of the fluid channel 100 to communicate with the first muffler chamber 300a, and the first protrusion 22 is inserted into the first muffler 10a. In this way, the setting of the first raised portion 22 can ensure that the first communicating chamber 200a extends to the first muffler chamber 300a and communicates with the first muffled chamber 300a, and at the same time, the first raised portion 22 also serves to connect the first body 21 to the first muffler chamber 300a. The function of the connection of a sound-absorbing member 10 a ensures that the first sound-absorbing member 10 a can vibrate within a certain range and ensures that the position between the first sound-absorbing cavity 300 a and the fluid channel 100 is stable. Further, the first raised portion 22 and the first sound-absorbing member 10a are in an interference fit and/or a sealed connection is achieved between the first raised portion 22 and the first sound-absorbing member 10a through gluing or ultrasonic welding. At the same time, it can further ensure the stability of the position of the first muffler 10a and the sealing of the first muffler cavity 300a.

In one embodiment, as shown in FIG. 6 , the first sound-absorbing member 10 a is spaced apart from the first body 21 . In this way, it can be ensured that the first sound-absorbing member 10a can swing relative to the first body 21 when it vibrates, and that the first sound-absorbing member 10a can have a certain vibration range.

In one embodiment, as shown in FIG. 3 , FIG. 6 and FIG. 7 , a second protrusion 10 a 2 is provided on the first sound-absorbing member 10 a. The second protruding portion 10 a 2 abuts against the first body 21 , so that the first sound-absorbing member 10 a is spaced apart from the first body 21 . In this way, the arrangement of the second protrusion 10a2 can ensure the existence of a gap between the first sound-absorbing member 10a and the first body 21, and ensure that the first sound-absorbing member 10a has a certain vibration range. Further, the second raised portion 10 a 2 is disposed around the first raised portion 22 . Since the first sound-absorbing member 10a is connected to the first body 21 through the first raised portion 22, and the second raised portion 10a2 is arranged around the first raised portion 22, it can ensure that the first sound-absorbing member 10a is positioned at the first raised portion 22. The force is evenly applied to ensure the stability of the vibration of the first muffler 10a. In this embodiment, the second protruding portion 10 a 2 is annular and disposed close to the first protruding portion 22 so as to form an annular gap with the first protruding portion 22 . It can be understood that in other embodiments, the second raised portion 10a2 may also be a split structure, including a plurality of ring-shaped raised segments. Further, the noise reduction effect of the accessory can be changed by adjusting the position of the second raised portion 10a2. Meanwhile, the second protruding portion 10a2 can also have other shapes, and the position of the second protruding portion 10a2 on the first sound dampening member 10a is also far away from the first protruding portion 22 .

In one embodiment, as shown in FIG. 1 , FIG. 2 and FIG. 6 , the first housing 20 further includes an attaching portion 23 . The accessory also includes a second housing 30 . The first housing 20 and the second housing 30 surround and form a receiving space, and the first sound-absorbing member 10 a is accommodated in the receiving space and is attached to the attaching part 23 and the second housing 30 respectively. In this embodiment, the affixing means that the first sound-absorbing member 10 a can be in contact with the affixing portion 23 and the second housing 30 respectively (the contact can be full or partial). In this way, the attached part 23 , the second housing 30 and the second protruding part 10 a 2 together ensure the position of the first sound-absorbing member 10 a is relatively stable, and at the same time enable the first sound-absorbing member 10 a to have a certain vibration range. Specifically, the first body 21 is ring-shaped, and the attaching portion 23 is close to one end of the first body 21 and extends from the first body 21 to a side away from the first body 21 along the radial direction of the first body 21 . Likewise, the attaching portion 23 is in the shape of a ring. Further, the second housing 30 includes a side wall 31 and a top wall 32 . Both the side wall 31 and the top wall 32 are attached to the first sound absorbing member 10a. The side wall 31 is arranged coaxially with the first body 21 , and one end is connected with the attaching portion 23 . The top wall 32 is located at one end of the side wall 31 away from the attached portion 23, and the top wall 32 extends from the side wall 31 to the side of the first body 21 along the radial direction of the first body 21 (or, the top wall 32 extends from the side wall 31 along the direction of the first body 21). The side wall 31 extends radially inward) and is connected to a side of the first body 21 away from the attached portion 23 . The storage space is formed by surrounding the first body 21 , the attaching portion 23 , the side wall 31 and the top wall 32 , and the storage space is annular. In this embodiment, the first body 21 and the attaching portion 23 are integrally formed. The side wall 31 and the top wall 32 are integrally formed. The connection between the side wall 31 and the attaching portion 23 and between the top wall 32 and the first body 21 can be through bonding, ultrasonic welding, buckling and the like. In another embodiment, the first housing 20 and the second housing 30 are detachably connected. In order to facilitate disassembly of the second housing 30 , the affixed portion 23 is arranged close to the body, that is, the affixed portion 23 is arranged near the inlet end of the fluid channel 100 , and the top wall 32 is arranged near the outlet end of the fluid channel 100 .

In one embodiment, as shown in FIG. 1, FIG. 2 and FIG. Between the three housings 40 . The first shell 20 and the third shell 40 are spaced apart to form a fluid channel 100 . In one example, a fixed connection between the first housing 20 and the third housing 40 can be realized through the connecting piece 41, and the connecting piece 41 divides the continuous annular fluid channel 100 into a plurality of annular and surrounding third housings. The fluid channels 100 distributed in the body 40. In another example, the first housing 20 is detachably connected to the third housing 40 . That is, when the third housing 40 is detached, the shape of the fluid channel 100 can be changed from a ring shape to a hollow structure passing through the attachment. The arrangement of the third housing 40 can ensure the stability of the inner edge of the fluid channel 100 . In another embodiment, the fluid passage 100 is located between the first sound dampening member 10 a and the third housing 40 . That is to say, in this embodiment, the first housing 20 is not provided, and the fluid channel 100 is formed by surrounding the first muffler 10 a and the third housing 40 .

In one embodiment, as shown in FIG. 2 , a plurality of first silencing portions 10a1 are arranged at intervals, and the accessory further includes a spacer 50 located between adjacent first silencing portions 10a1 , and the spacer 50 is arranged on the first housing 20 . The arrangement of the spacer 50 makes the first noise reduction parts 10a1 independent from each other and does not interfere with each other during the noise reduction process. At the same time, the adjacent spacers 50 can also ensure that the position of the first sound absorbing portion 10a1 is relatively stable. Further, the adjacent spacer 50 can generate a clamping force on the first sound-absorbing portion 10a1, so as to ensure the stability of the connection between the first sound-absorbing portion 10a1 and the first raised portion 22, and prevent the first sound-absorbing portion 10a1 from facing the first raised portion 22. The lifting part 22 moves. In this embodiment, the spacers 50 are disposed on the first body 21 , and at least one first communication cavity 200 a is provided between adjacent spacers 50 to communicate the first muffler cavity 300 a with the fluid channel 100 . In this embodiment, the installation direction of the first noise reduction part 10a1 is parallel to the axial direction of the fluid channel 100. In order to facilitate the installation of the first noise reduction part 10a1 and prevent the first noise reduction part 10a1 from being skewed, the spacer 50 is designed to be parallel to the fluid channel 100 Axially extending strip-like structure. It can be understood that in other embodiments, the spacer 50 can also have other shapes, for example, the spacer 50 can have an arc-shaped claw structure, and the adjacent spacer 50 can also clamp the first noise reduction part 10a1 The first noise reduction portion 10a1 abuts against the first body 21 . Furthermore, a groove structure can also be provided on the first body 21 to function as a spacer 50, and the first noise-absorbing part 10a1 can be accommodated in the groove structure, so as to ensure that the adjacent first noise-absorbing parts 10a can be arranged at intervals, and at the same time The position stability of the first sound-absorbing member 10a can be ensured.

In one embodiment, as shown in FIG. 3 and FIG. 4 , an abutting portion 10a3 is provided on the first noise-absorbing portion 10a1 . The abutting portion 10a3 abuts against the spacer 50 so that the first noise reduction portion 10a1 is spaced apart from the spacer 50 . In this way, the spacer 50 can only restrict part of the vibration of the first sound-absorbing part 10a, and outside the restricted area of the spacer 50, the first sound-absorbing part 10a1 still has a relatively large vibration range, while ensuring a stable position, it has a better Noise reduction effect. In this embodiment, the abutting portion 10 a 3 protrudes from the first noise reduction portion 10 a 1 , and its shape matches the shape of the spacer 50 . In this embodiment, as shown in FIG. 1 , FIG. 2 , FIG. 5 and FIG. 6 , the accessory also includes the aforementioned second casing 30 , and the first noise reduction part 10 a 1 is accommodated in the storage space and attached to the second casing 30 . set up. Further, the second housing 30 is provided with a mounting post 60, which is inserted between the adjacent first silencing parts 10a1, and the mounting post 60 is provided with an arc surface 61 on the side facing the first silencing part 10a1. A housing 20 defines a mounting hole 231 corresponding to the mounting post 60 . In this way, the mounting post 60 corresponds to the mounting hole 231 and can be inserted into the mounting hole 231 through the mounting post 60 and/or connected to the mounting post 60 through the connecting piece 41 through the mounting hole 231, so as to connect the first housing 20 to the second housing 20. The two casings 30 are connected. The setting of the arc surface 61 enables the first sound absorbing part 10a1 to abut against the arc face 61 during the swinging process of vibration or in the later stage of the swinging process of vibration, while ensuring that the first sound absorbing part 10a has a certain vibration range, Ensure that its position is relatively stable, and avoid relative movement or even separation between the vibration amplitude and the first protrusion 22 due to excessive vibration amplitude, resulting in seal failure of the first muffler chamber 300a. In this embodiment, the installation hole 231 is formed in the attaching portion 23 .

In one embodiment, when the sound-absorbing member includes a second sound-absorbing member, the sound-absorbing chamber includes a second sound-absorbing chamber provided on the second sound-absorbing member, and the communication chamber includes a second communication chamber connected between the fluid channel and the second sound-absorbing chamber . Further, the second sound-absorbing member can be used to limit the inner edge of the fluid passage, and at this time, the second communication chamber is formed on the second sound-absorbing member. Further, the number of the second communicating cavity is one or more. If there are multiple second communicating cavities, the multiple second communicating cavities are distributed around the second muffler cavity. In this embodiment, a plurality of second communicating cavities are arranged in a staggered manner along the radial direction of the second muffler cavity. The radially staggered arrangement specifically refers to that any two second communication cavities in the plurality of second communication cavities are not located in the same radial direction of the second muffler cavity. In this way, the fluid entering the second muffler chamber from one second communication chamber can be prevented from directly flowing out from the other radially opposite second communication chamber, which will affect the noise reduction effect. In this embodiment, the plurality of second communication cavities are arranged in a spiral along the circumference of the second muffler cavity. Of course, the arrangement of the plurality of second communication cavities is not limited thereto, as long as the aforesaid plurality of second communication cavities are staggered along the radial direction of the second muffler cavity.

In one embodiment, the second sound absorbing member includes a plurality of second sound absorbing parts. The second muffler cavity is formed in the second muffler part. There are multiple second communicating cavities. One end of the plurality of second communication cavities communicates with the fluid channel. Each second muffler cavity communicates with an end of at least one second communication cavity away from the fluid passage. In order to make the vibrations between the second mufflers relatively independent, adjacent second mufflers are arranged at intervals. In this embodiment, each of the second sound-absorbing chambers communicates with an end of each of the second communicating chambers away from the fluid passage. A plurality of second mufflers are distributed in a ring shape and are spaced apart from each other. The fluid channel is in the shape of a ring, and the shapes of the second silencing parts, the second silencing cavities, and the second communication cavities are all the same, which can ensure that the noise reduction effect of the fluid channel is similar at all places in the circumferential direction. The second muffler cavity and the second communication cavity are designed to achieve the best noise reduction effect. It can be understood that in other embodiments, the shapes of the second silencing parts, the shapes of the second silencing cavities, and the shapes of the second communicating cavities can be different, so as to form multiple resonance systems with different structures, so as to be able to eliminate different frequency of sound waves. In this embodiment, the second muffler cavity and the second communicating cavity, and the first muffler cavity and the first communicating cavity can form multiple resonance systems, which can work together to improve the noise reduction effect of the accessories. Multiple resonance systems can eliminate noise of different frequencies. In this embodiment, the accessory further includes a first housing, and the fluid channel is located between the first housing and the second sound-absorbing member. In addition, in other embodiments, each second sound-absorbing chamber may also communicate with ends of two or more second communication chambers away from the fluid passage.

In one embodiment, the accessory includes a third housing. The second muffler is disposed on the third casing. The fluid passage ring is disposed on the third housing. In this way, the shape of the inner edge of the fluid channel can be restricted. Further, the second communication cavity is formed in the third casing. The arrangement of the third housing can ensure the stability of the shape of the inner edge of the fluid channel, prevent the vibration of the second sound-absorbing member from affecting the shape of the fluid channel, generate sound waves of extra frequencies, and reduce the noise reduction effect. Further, the second sound-absorbing member may be a continuous structure or include a plurality of second sound-absorbing parts arranged at intervals. Further, the first shell and the third shell are spaced apart to form a fluid channel, and the first shell and the third shell are detachably connected. A connecting piece may be provided between the first housing and the third housing to form a fluid channel. That is, when the third housing is detached, the fluid channel can be changed from a ring shape to a hollow structure penetrating the accessory.

In one embodiment, the third housing includes a second body and a third protrusion, and the second communication chamber passes through the second body and the third protrusion from the side of the fluid channel to communicate with the second sound-absorbing chamber. The protruding part is inserted into the second sound-absorbing member. In this way, the setting of the third protrusion can ensure that the second communication chamber extends to the second sound-absorbing chamber and communicates with the second sound-absorbing chamber, and at the same time, the third protrusion also plays the role of connecting the second body with the second sound-absorbing member , to ensure that the second muffler can vibrate within a certain range and ensure a stable position between the second muffler chamber and the fluid channel. Further, an interference fit is used between the third protruding part and the second muffling part, and/or a sealed connection is achieved between the third protruding part and the second muffling part by means of gluing or ultrasonic welding, and at the same time The stability of the position of the second sound-absorbing member and the sealing performance of the second sound-absorbing cavity can be further ensured.

In one embodiment, the second sound-absorbing member is spaced apart from the second body. In this way, it can ensure that the second sound-absorbing member can swing relative to the second body when it vibrates, ensuring that the second sound-absorbing member can have a certain vibration range.

In one embodiment, the second sound-absorbing member is provided with a fourth protrusion, and the fourth protrusion abuts against the second body, so that the second sound-absorbing member is spaced apart from the second body. In this way, the arrangement of the fourth protrusion can ensure the existence of a gap between the second sound-absorbing member and the second body, and ensure that the second sound-absorbing member has a certain vibration range. Further, the fourth raised portion is arranged around the third raised portion. Since the second sound-absorbing part is connected to the second body through the third protrusion, and the fourth protrusion is arranged around the third protrusion, it can ensure that the second sound-absorbing part is evenly stressed at the third protrusion, ensuring that the second Stability of the vibration of the muffler. In this embodiment, the fourth protruding part is annular and disposed close to the third protruding part, so as to form an annular gap with the third protruding part. It can be understood that in other embodiments, the fourth protruding part may also be a split structure, including a plurality of protruding segments distributed in a ring shape. Further, the noise reduction effect of the accessory can be changed by adjusting the position of the fourth protrusion. At the same time, the fourth protruding portion can also be in other shapes, and the position of the fourth protruding portion on the second sound dampening member is also far away from the third protruding portion. In this embodiment, the accessory further includes a first housing, and the fluid channel 100 is located between the first housing and the third housing.

In one embodiment, as shown in FIG. 6 , the third housing 40 includes a connecting portion 41 , and the connecting portion 41 protrudes outward relative to the fluid channel 100 in a direction away from the air outlet end of the accessory. The connecting portion 41 is used for connecting or positioning with the body. In this embodiment, the connecting part 41 is a protruding structure, and the body is provided with a groove structure matching the connecting part 41, and the connecting part 41 cooperates with the groove structure to ensure that the relative position between the accessory and the body is limited. If the connection part 41 is used to connect with the body, the connection between the connection part 41 and the body can be achieved by means of magnetic attraction, buckle and the like.

In one embodiment, as shown in FIGS. 1 , 2 and 6 , the accessory further includes a cover plate 70 . The third casing 40 and the cover plate 70 surround and form a receiving cavity 400 . The accommodating cavity 400 can be used for accommodating the second sound-absorbing element. The cover plate 70 can be fixed on the third housing 40 by means of ultrasonic welding, buckling, bonding and the like. In this embodiment, the cover plate 70 is disposed on a side of the third casing 40 away from the connecting portion 41 .

In one embodiment, as shown in FIG. 2 , FIG. 4 , FIG. 6 and FIG. 7 , sound-absorbing material is accommodated in the sound-absorbing chamber 300 . In this way, the setting of the sound-absorbing material can widen the frequency range of effective noise reduction, further improving the noise reduction effect. In this embodiment, the sound-absorbing material may be sound-absorbing cotton, but it is not limited thereto.

Further, as shown in FIG. 2 and FIG. 6 , a through groove is provided on the sound-absorbing member 10 . The sound-absorbing material can be accommodated in the sound-absorbing chamber 300 through the through groove 10a4. The accessory also includes a cover body 80 that covers the through slot 10a4. The cover body 80 can be fixed on the sound-absorbing member 10 by means of ultrasonic welding, buckling, bonding and the like. In this embodiment, the accessory only includes the first sound-absorbing member 10a. Further, the first sound-absorbing member 10a includes a plurality of first sound-absorbing portions 10a1, and the through grooves 10a4 are formed on the first sound-absorbing portions 10a1. It can be understood that in other embodiments, the first sound-absorbing member 10a is in the shape of a ring as a whole, and at least one through slot 10a4 can be opened on the first sound-absorbing member 10a. In another embodiment, the accessory can also only include the second sound-absorbing element, in which case the channel is formed on the second sound-absorbing element. If the second silencing element includes a plurality of second silencing parts, the through groove is formed on the second silencing parts. In addition, when the accessory includes one or more first silencing parts 10a and one or more second silencing parts, you can choose to fill part of the first silencing cavity 300a and/or part of the second silencing cavity with sound-absorbing material to The whole accessory can eliminate the noise of different frequencies, further improving the noise reduction effect.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

Claims

An accessory for hair care equipment, characterized in that the accessory is provided with a fluid channel (100) and a communication cavity (200), the fluid channel (100) runs through the accessory, and the accessory includes a sound-absorbing member ( 10), the noise reduction member (10) is provided with a noise reduction cavity (300), and the communication cavity (200) is used to communicate the fluid channel (100) with the noise reduction cavity (300).
The accessory according to claim 1, characterized in that, the end of the communication cavity (200) away from the fluid passage (100) is pierced through the sound-absorbing member (10) so as to communicate with the sound-absorbing cavity (300) connected.
The accessory according to claim 1, characterized in that, one of the fluid channel (100) and the sound-absorbing cavity (300) is arranged around the other.
The accessory according to claim 3, characterized in that, the noise-absorbing member (10) includes at least one of a first sound-absorbing member (10a) and a second sound-absorbing member, and the first sound-absorbing member (10a) is surrounded by In the fluid channel (100), the fluid channel (100) is arranged around the second sound-absorbing member.
The accessory according to claim 4, characterized in that, when the sound-absorbing member (10) includes the first sound-absorbing member (10a), the sound-absorbing cavity (300) includes a wall located on the first sound-absorbing member ( 10a) of the first muffler chamber (300a), the communication chamber (200) includes a first communication chamber (200a) communicating between the fluid channel (100) and the first muffler chamber (300a).
The accessory according to claim 5, characterized in that, the first sound-absorbing cavity (300a) is annular and arranged around the fluid channel (100); and/or

The number of the first communication cavity (200a) is one or more.
The accessory according to claim 5, characterized in that, the first noise-absorbing member (10a) comprises a plurality of first noise-absorbing parts (10a1), and the plurality of first noise-absorbing parts (10a1) are annular and arranged around In the fluid channel (100), the first muffler cavity (300a) is formed in the first muffler portion (10a1), the number of the first communication cavities (200a) is multiple, and the multiple One end of the first communication chamber (200a) communicates with the fluid passage (100), and each of the first mufflers (300a) communicates with at least one of the first communication chambers (200a) away from the fluid passage (100). ) is connected at one end.
The accessory according to claim 5, characterized in that, the accessory comprises a first casing (20), the first sound-absorbing member (10a) is arranged on the first casing (20), and the first The casing (20) is arranged around the fluid channel (100), and the first communication cavity (200a) is formed in the first casing (20).
The accessory according to claim 8, characterized in that, the first housing (20) comprises a first body (21) and a first protrusion (22), and the first communicating chamber (200a) One side of the fluid channel (100) runs through the first body (21) and the first protrusion (22) in order to communicate with the first muffler cavity (300a), and the first protrusion ( 22) Inserting into the first sound-absorbing member (10a).
The accessory according to claim 9, characterized in that, the first sound-absorbing member (10a) is spaced apart from the first body (21).
The accessory according to claim 10, characterized in that, the first noise reduction member (10a) is provided with a second protrusion (10a2), and the second protrusion (10a2) abuts against the first A body (21), such that the first sound-absorbing member (10a) is spaced apart from the first body (21).
The accessory according to claim 11, characterized in that, the second raised portion (10a2) is arranged around the first raised portion (22).
The accessory according to claim 8, characterized in that, the first casing (20) further includes an attachment portion (23), the accessory also includes a second casing (30), and the first casing (20) and the second casing (30) are surrounded to form a storage space, the first noise-absorbing member (10a) is stored in the storage space and is respectively connected with the sticking part (23) and the second The housing (30) is attached; and/or

The accessory also includes a third housing (40), the fluid channel (100) is arranged around the third housing (40), and the fluid channel (100) is located in the first housing (20) and the third housing (40).
The accessory according to claim 5, characterized in that, the accessory further comprises a third housing (40), and the fluid channel (100) is located between the first sound-absorbing member (10a) and the third housing (40).
The accessory according to claim 8, characterized in that, the first sound-absorbing member (10a) comprises a plurality of first sound-absorbing parts (10a1), and the plurality of first sound-absorbing parts (10a1) are ring-shaped and encircled In the fluid channel (100), the first muffler cavity (300a) is formed in the first muffler portion (10a1), the number of the first communication cavities (200a) is multiple, and the multiple One end of the first communication chamber (200a) communicates with the fluid passage (100), and each of the first mufflers (300a) communicates with at least one of the first communication chambers (200a) away from the fluid passage (100). ) is connected at one end.
The accessory according to claim 15, characterized in that, a plurality of the first silencing parts (10a1) are arranged at intervals, and the accessory further comprises a spacer ( 50), the spacer (50) is arranged on the first casing (20).
The accessory according to claim 16, characterized in that, the accessory further comprises a second casing (30), and the first casing (20) and the second casing (30) surround to form a receiving space , the first noise reduction part (10a1) is accommodated in the accommodation space and attached to the second casing (30).
The accessory according to claim 17, characterized in that, the second casing (30) is provided with a mounting column (60), and the mounting column (60) is passed through the adjacent first sound-absorbing part Between (10a1), the first housing (20) is provided with installation holes (231) corresponding to the installation columns (60).
The accessory according to claim 18, characterized in that, the installation column (60) is provided with an arc surface (61) on a side facing the first noise reduction part (10a1).
The accessory according to claim 4, characterized in that, when the sound-absorbing member (10) includes the second sound-absorbing member, the sound-absorbing cavity (300) includes a second sound-absorbing member provided on the second sound-absorbing member The communication cavity (200) includes a second communication cavity connected between the fluid channel (100) and the second sound-absorbing cavity.
The accessory according to claim 20, wherein the number of the second communicating chambers is one or more.
The accessory according to claim 21, wherein when there are multiple second communication cavities, the plurality of second communication cavities are arranged staggeredly along the radial direction of the second muffler cavity.
The accessory according to claim 20, wherein the second noise reduction member includes a plurality of second noise reduction parts, the second noise reduction chambers are formed in the second noise reduction parts, and the number of the second communication chambers There are multiple, one end of the plurality of second communication chambers communicates with the fluid passage (100), and each of the second mufflers communicates with at least one of the second communication chambers that is far away from the fluid passage (100). connected at one end.
The accessory according to claim 20, characterized in that, the accessory comprises a third housing (40), the second sound-absorbing member is arranged on the third housing (40), and the fluid channel (100) The ring is arranged on the third casing (40), and the second communication cavity is formed on the third casing (40).
The accessory according to claim 20, characterized in that, the accessory further comprises a first housing (20), and the fluid passage (100) is located between the first housing (20) and the second sound-absorbing member between.
The accessory according to claim 24, characterized in that, the accessory further comprises a first housing (20), and the fluid channel (100) is located between the first housing (20) and the third housing (40).
The accessory according to claim 13, 14 or 24, characterized in that, the third housing (40) is provided with a connection part (41), and the connection part (41) is relatively to the fluid channel (100 ) protrudes outward in a direction away from the air outlet end of the accessory.
The accessory according to claim 13 or 26, characterized in that, the first housing (20) is spaced apart from the third housing (40) of the accessory to form the fluid passage (100), so The first casing (20) is detachably connected to the third casing (40).
The accessory according to claim 1, characterized in that, the sound-absorbing cavity (300) contains sound-absorbing materials.
The accessory according to claim 1, characterized in that the structure of the sound-absorbing chamber (300) and/or the communicating chamber (200) can be designed to achieve quantitative elimination of sound waves of a specific frequency.
The accessory according to claim 1, characterized in that, the number of the sound-absorbing cavities (300) is multiple, and the multiple sound-absorbing cavities (300) and the communicating cavities (200) connected thereto form multiple resonances system, a plurality of said resonant systems can eliminate sound waves of the same frequency or sound waves of different frequencies.
A hair care device, characterized in that it comprises:

body; and

31. An accessory as claimed in any one of claims 1 to 31 connected to the body.