WO2021196756A1 - 空气放大式吹风机 - Google Patents

空气放大式吹风机 Download PDF

Info

Publication number
WO2021196756A1
WO2021196756A1 PCT/CN2020/137645 CN2020137645W WO2021196756A1 WO 2021196756 A1 WO2021196756 A1 WO 2021196756A1 CN 2020137645 W CN2020137645 W CN 2020137645W WO 2021196756 A1 WO2021196756 A1 WO 2021196756A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
fan
handle
inner cylinder
annular cavity
Prior art date
Application number
PCT/CN2020/137645
Other languages
English (en)
French (fr)
Inventor
陈翌旸
Original Assignee
广东省无叶科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东省无叶科技有限公司 filed Critical 广东省无叶科技有限公司
Priority to US17/426,089 priority Critical patent/US20220312925A1/en
Publication of WO2021196756A1 publication Critical patent/WO2021196756A1/zh

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/084—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation hand fans
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
    • A45D2020/126—Stands therefor
    • A45D2020/128—Stands therefor involving features of the hand-held hair dryer

Definitions

  • the invention relates to the technical field of hair dryers, in particular to a hair dryer adopting an air amplification type.
  • the air-amplified blower is mainly composed of a handle, an outer cylinder, an inner cylinder, a fan and a control circuit.
  • the handle has an inner cavity as an air duct, and the fan is installed in the air duct of the handle.
  • the outer cylinder and the inner cylinder constitute an air amplifier, an annular cavity communicating with the air duct is formed between the outer cylinder and the inner cylinder, an annular nozzle is formed at the front end of the annular cavity, and the control circuit is housed in the end section of the annular cavity.
  • the electric heating element is installed in the annular cavity.
  • the air is sucked into the air duct of the handle by the fan, forming a high-speed airflow into the annular duct of the air amplifier, and finally ejected from the annular nozzle.
  • the ejected high-speed annular airflow makes the inner cylinder form a negative pressure zone, so a large amount of surrounding air will be sucked into the inner cylinder, and combined with the high-speed annular airflow into a high-speed, high-flow airflow and blown out from the air amplifier.
  • the current air-amplified hair dryer is still a new product, and there is a lot of room for improvement in terms of noise, wind blowing range, and amplified air volume.
  • the technical problem to be solved by the present invention is to provide an air amplification type blower that can reduce noise, expand the blowing range of the wind, and increase the air volume.
  • an air-amplified blower including a handle, an outer cylinder, an inner cylinder, a fan, and a control circuit.
  • the fan is installed in the air duct of the handle, and a connection is formed between the outer cylinder and the inner cylinder.
  • the front end of the annular cavity forms an annular nozzle
  • the control circuit is housed in the end section of the annular cavity.
  • the fan is set in the muffler tube, and the air inlet section of the muffler tube shrinks in steps.
  • the inner tube is provided with a number of circumferentially arranged spray holes inclined toward the air outlet at the middle section, and from the spray hole to the
  • the section of the inner cylinder of the outlet is set in the shape of a bell-mouth that expands slightly.
  • a filter screen is installed on the surface of the handle air duct of the tunnel-shaped hole.
  • the outer cylinder is formed with a baffle that isolates the control circuit from the annular cavity and the handle air duct.
  • the fan is sleeved in a rubber sleeve.
  • the air-amplifying blower of the present invention has a transverse tunnel-shaped hole in the handle as the air inlet, the direct transmission channel of fan noise is blocked, and the noise can be reduced to a certain extent;
  • the fan is set in the muffler tube, and the air inlet section of the muffler tube is set to shrink in a step shape, and the step can block a part of the noise from the source of the fan.
  • the oblique spray hole opened on the inner cylinder can further enhance the flow rate of the air drawn into the inner cylinder, thereby increasing the air volume; and the outlet section of the inner cylinder is set into a bell mouth shape, on the one hand, it can provide expansion for the airflow entering from the oblique spray hole
  • the channel on the other hand, can expand the angle of the wind, thereby expanding the range of the wind.
  • Figure 1 is a schematic diagram of the structure of the air amplification type blower of the present invention.
  • Figure 2 is a cross-sectional view of the air amplification type blower of the present invention.
  • Fig. 3 is an exploded view of the air amplification type blower of the present invention.
  • an air-amplified blower includes a handle 1, an outer cylinder 2, an inner cylinder 3, a fan 4, and a control circuit 5 (the fan 4 and the control circuit 5 are both conventional components, as shown in the figure It is the installation position, and its specific shape is not marked), the fan 4 is installed in the air duct of the handle 1, an annular cavity connecting the air duct is formed between the outer cylinder 2 and the inner cylinder 3, and the front end of the annular cavity forms an annular nozzle 6, and the control circuit 5 is housed at the end of the annular cavity.
  • a transverse tunnel-shaped hole 1.1 is opened at the end of the handle 1, and the peripheral wall of the tunnel-shaped hole 1.1 is set in a grille shape.
  • the inner cylinder 3 has a number of circumferentially arranged spray holes 3.1 inclined towards the air outlet in the middle position, and the section of the inner cylinder 3 from the spray hole 3.1 to the outlet is set as a slightly expanded horn Mouth-like.
  • the air is sucked into the air duct of the handle 1 from the transverse tunnel-shaped hole 1.1 by the fan 4, forming a high-speed airflow into the annular cavity between the outer cylinder 2 and the inner cylinder 3, and finally ejects from the annular nozzle 6.
  • the jetted high-speed annular air flow forms a negative pressure zone in the inner cylinder 3, so a large amount of surrounding air will be sucked into the inner cylinder 3, and combined with the high-speed annular air flow into a high-speed, high-flow airflow and blown out from the air amplifier.
  • the horizontal tunnel-like hole 1.1 is used as the air inlet of the handle 1, which can block the channel for the noise of the fan to pass directly to the outside, which can reduce the noise to a certain extent; in addition, the fan 4 is set in the muffler tube 7, and the muffler tube 7
  • the air inlet section 7.1 is set to shrink in a step shape, and the step can block a part of the noise from the source of the fan 4 to further reduce the noise.
  • the oblique spray hole 3.1 opened in the inner cylinder 3 can further enhance the flow rate of the air drawn into the inner cylinder 3, thereby increasing the air volume; and the outlet section 3.2 of the inner cylinder 3 is set into a bell mouth shape, on the one hand, it can be from the oblique spray hole 3.1
  • the incoming airflow provides an expansion channel, on the other hand, it can expand the angle of the blower wind bundle, thereby expanding the blowing range of the blower wind bundle.
  • a filter 8 is installed on the surface of the handle 1 of the tunnel-shaped hole 1.1 in the air duct.
  • the outer cylinder 2 is formed with a baffle 2.1 which isolates the control circuit 5 from the annular cavity and the handle air duct.
  • the fan 4 is sleeved in a rubber sleeve 9, for example, a silicone sleeve can be used.
  • each component of the hair dryer it can be specifically designed according to the functional structure of the machine to facilitate molding, processing and assembly, which is not the improvement and innovation of the present invention.
  • the main body housing 10 and the handle 1 are a conjoined structure.
  • the conjoined structure is divided into front and rear parts along the longitudinal section of the handle 1 and the transverse section of the main body housing 10 to facilitate the assembly of other internal components.
  • the tunnel-shaped hole 1.1 is set as an independent waist-shaped hole sleeve 11, a mesh is arranged on the peripheral wall, and the filter screen 8 is sleeved on the outer wall of the hole sleeve 11.
  • the muffler tube 7 can be designed into two upper and lower parts to facilitate the installation of the fan 4.
  • the outer cylinder 2 and the inner cylinder 3 are divided into front and rear parts.
  • the front part of the outer cylinder 2 and the front part of the inner cylinder 3 are integrally formed to form the annular nozzle 6 and the air duct part of the annular cavity.
  • the rear part of the outer cylinder 2 is formed independently , And form a ring cavity containing the control circuit 5.
  • the rear part of the inner cylinder 3 is formed independently and is embedded in the cavity of the outer cylinder 2 of the rear part.
  • the baffle 2.1 is formed independently and is assembled between the front and rear parts of the outer cylinder 2 to separate the annular cavity of the air duct part and the annular cavity of the part containing the control circuit 5.
  • the control button panel 12 can be installed on the top of the handle 1 for easy operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cleaning And Drying Hair (AREA)

Abstract

一种空气放大式吹风机，包括有手柄（1）、外筒（2）、内筒（3）、风机（4）以及控制电路（5），风机（4）安装在手柄（1）的风道内，外筒（2）和内筒（3）之间形成连通风道的环形腔，环形腔的前端形成环形喷嘴（6），控制电路（5）容置在环形腔的末段，手柄（1）的末段开设横向的隧道状孔（1.1）作为进风口，阻挡了风机（4）噪音的直传通道，可在一定的程度上减低噪音；再将风机（4）套装在消音筒（7）内，并将消音筒（7）的进风段（7.1）设成台阶状收缩，该台阶可从风机（4）的源头上挡住一部分噪音外传；内筒（3）上开设斜喷孔（3.1）可进一步地加强吸入内筒（3）气流的流速，从而增大风量；而将内筒（3）的出口段（3.2）设成喇叭口状，一方面可为从斜喷孔（3.1）进入的气流提供扩容通道，另一方面可扩大风束的角度，从而扩大风束吹拂范围。

Description

空气放大式吹风机 技术领域
本发明涉及吹风机技术领域，具体是指采用空气放大式的吹风机。
背景技术
空气放大式吹风机主要由手柄、外筒、内筒、风机以及控制电路构成。手柄具有作为风道的内腔，风机安装在手柄的风道内。外筒和内筒构成空气放大器，外筒和内筒之间形成连通风道的环形腔，环形腔的前端形成环形喷嘴，控制电路容置在环形腔的末段。带有热风功能的，就在环形腔内安装电热元件。手柄的末端开有进风口。空气被风机吸入手柄的风道内，形成高速气流进入空气放大器的环形风道，最后从环形喷嘴喷出。喷出的高速环形气流使内筒形成负压区，因而会吸入周围大量的空气进入内筒，与高速环形气流汇合成高速、高流量的气流从空气放大器吹出。而目前的空气放大式吹风机还属于新兴产品，在噪音、风束吹拂范围及放大的风量等方面都有很大的提升空间。
发明内容
本发明要解决的技术问题是提供一种可降低噪音、扩大风束吹拂 范围、增大风量的空气放大式吹风机。
为解决上述技术问题所采用的技术方案：一种空气放大式吹风机，包括有手柄、外筒、内筒、风机以及控制电路，风机安装在手柄的风道内，外筒和内筒之间形成连通风道的环形腔，环形腔的前端形成环形喷嘴，控制电路容置在环形腔的末段，其特征在于：所述手柄的末段开一横向的隧道状孔，隧道状孔的周壁设成格栅状，风机套装在消音筒内，且消音筒的进风段呈台阶状收缩，所述内筒在中段位置开有若干周向布设的向着出风口倾斜的喷孔，且从喷孔到出口的这段内筒设成稍外扩的喇叭口状。
在上述基础上，所述隧道状孔的手柄风道内的表面安装过滤网。
在上述基础上，所述外筒形成有把控制电路与环形腔和手柄风道隔离的挡板。
在上述基础上，所述风机套装在胶套筒内。
采用本发明所带来的有益效果：由于本发明空气放大式吹风机在手柄开设横向的隧道状孔作为进风口，阻挡了风机噪音的直传通道，可在一定的程度上减低噪音；再加上风机套装在消音筒内，并将消音筒的进风段设成台阶状收缩，该台阶可从风机的源头上挡住一部分噪音外传。内筒上开设的斜喷孔可进一步地加强吸入内筒气流的流速，从而增大风量；而将内筒的出口段设成喇叭口状，一方面可为从斜喷孔进入的气流提供扩容通道，另一方面可扩大风束的角度，从而扩大风束吹拂范围。
附图说明
图1为本发明空气放大式吹风机的结构示意图；
图2为本发明空气放大式吹风机的剖视图；
图3为本发明空气放大式吹风机的爆炸图。
具体实施方式
如图1-3所示，一种空气放大式吹风机，包括有手柄1、外筒2、内筒3、风机4以及控制电路5(风机4和控制电路5均为常规部件，图中标示的是安装位置，并未标示其具体形状)，风机4安装在手柄1的风道内，外筒2和内筒3之间形成连通风道的环形腔，环形腔的前端形成环形喷嘴6，控制电路5容置在环形腔的末段。在本发明中，所述手柄1的末段开一横向的隧道状孔1.1，隧道状孔1.1的周壁设成格栅状，风机4套装在消音筒7内，且消音筒7的进风段7.1呈台阶状收缩，所述内筒3在中段位置开有若干周向布设的向着出风口倾斜的喷孔3.1，且从喷孔3.1到出口的这段内筒3设成稍外扩的喇叭口状。
空气被风机4从横向的隧道状孔1.1吸入手柄1的风道内，形成高速气流进入外筒2和内筒3之间的环形腔，最后从环形喷嘴6喷出。喷出的高速环形气流使内筒3形成负压区，因而会吸入周围大量的空气进入内筒3，与高速环形气流汇合成高速、高流量的气流从空气放大器吹出。横向的隧道状孔1.1作为手柄1的进风口，可阻挡风机噪音直向外传的通道，可在一定的程度上降低噪音；再加上风机4 套装在消音筒7内，并将消音筒7的进风段7.1设成台阶状收缩，该台阶可从风机4的源头上挡住一部分噪音外传，进一步降低噪音。内筒3上开设的斜喷孔3.1可进一步地增强吸入内筒3气流的流速，从而增大风量；而将内筒3的出口段3.2设成喇叭口状，一方面可为从斜喷孔3.1进入的气流提供扩容通道，另一方面可扩大吹风机风束的角度，从而扩大吹风机风束的吹拂范围。
为防止更加细小的异物吸入风机内，所述隧道状孔1.1的手柄1风道内的表面安装过滤网8。为的使得气流在风机内的流动更加顺畅，所述外筒2形成有把控制电路5与环形腔和手柄风道隔离的挡板2.1。为进一步降低风机的振动与噪音，所述风机4套装在胶套筒9内，比如可采用硅胶套筒。
至于吹风机的各个零部件的结构形式可根据该机的功能结构进行具体设计，以便于成型、加工及装配，这并非本发明改进创新所在。在本实施例中，主体外壳10和手柄1为连体结构，沿着手柄1的纵切面和主体外壳10的横切面把该连体结构分成前后两部分，以便于其它内部零部件的装配。隧道状孔1.1设成一个独立的腰型孔的孔套11，周壁布设网孔，过滤网8套在孔套11的外壁。消音筒7可设计成上下两部分，以便于装嵌风机4。外筒2和内筒3均分成前后两部分，外筒2的前部分和内筒3的前部分一体成型，并形成环形喷嘴6和环形腔的风道部分，外筒2的后部分独立成型，并形成容置控制电路5的环形腔。内筒3的后部分独立成型，嵌装在后部分外筒2的腔孔内。挡板2.1独立成型，装配在外筒2的前后两部分之间，把风道部分的 环形腔和容置控制电路5部分的环形腔分隔开来。控制按键面板12则可安装在便于操作的手柄1的顶端。

Claims (4)

  1. 一种空气放大式吹风机，包括有手柄、外筒、内筒、风机以及控制电路，风机安装在手柄的风道内，外筒和内筒之间形成连通风道的环形腔，环形腔的前端形成环形喷嘴，控制电路容置在环形腔的末段，其特征在于：所述手柄的末段开一横向的隧道状孔，隧道状孔的周壁设成格栅状，风机套装在消音筒内，且消音筒的进风段呈台阶状收缩，所述内筒在中段位置开有若干周向布设的向着出风口倾斜的喷孔，且从喷孔到出口的这段内筒设成稍外扩的喇叭口状。
  2. 根据权利要求1所述的空气放大式吹风机，其特征在于：所述隧道状孔的手柄风道内的表面安装过滤网。
  3. 根据权利要求1所述的空气放大式吹风机，其特征在于：所述外筒形成有把控制电路与环形腔和手柄风道隔离的挡板。
  4. 根据权利要求1-3任一所述的空气放大式吹风机，其特征在于：所述风机套装在胶套筒内。
PCT/CN2020/137645 2020-04-03 2020-12-18 空气放大式吹风机 WO2021196756A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/426,089 US20220312925A1 (en) 2020-04-03 2020-12-18 Amplification type hair dryer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010259406.7 2020-04-03
CN202010259406.7A CN111336123A (zh) 2020-04-03 2020-04-03 空气放大式吹风机

Publications (1)

Publication Number Publication Date
WO2021196756A1 true WO2021196756A1 (zh) 2021-10-07

Family

ID=71182989

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/137645 WO2021196756A1 (zh) 2020-04-03 2020-12-18 空气放大式吹风机

Country Status (3)

Country Link
US (1) US20220312925A1 (zh)
CN (1) CN111336123A (zh)
WO (1) WO2021196756A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220312925A1 (en) * 2020-04-03 2022-10-06 Guangdong Wuye Technology Co., Ltd. Amplification type hair dryer

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113261763A (zh) * 2021-06-03 2021-08-17 广东省无叶科技有限公司 吹风机的防尘网装置
USD1035133S1 (en) * 2022-11-22 2024-07-09 Babyliss FACO SRL Hair dryer
USD1013266S1 (en) * 2023-06-20 2024-01-30 Dejun Li Hair dryer
USD1004191S1 (en) * 2023-07-21 2023-11-07 Rongfeng Jiang Hair dryer

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104687707A (zh) * 2013-12-10 2015-06-10 戴森技术有限公司 手持式器具
CN105795675A (zh) * 2016-05-17 2016-07-27 杭州清稞节能环保科技有限公司 无叶风扇型纳米水离子吹风机
CN206129653U (zh) * 2016-09-27 2017-04-26 甘玉纯 一种无叶电吹风机
WO2018012897A1 (ko) * 2016-07-13 2018-01-18 이강선 송풍기
CN109156966A (zh) * 2018-10-31 2019-01-08 舒可士（深圳）科技有限公司 毛发干燥装置
CN208676494U (zh) * 2018-05-22 2019-04-02 长沙梦龙智能科技有限责任公司 一种吹风机
CN111336123A (zh) * 2020-04-03 2020-06-26 广东省无叶科技有限公司 空气放大式吹风机
CN211950926U (zh) * 2020-04-03 2020-11-17 广东省无叶科技有限公司 空气放大式吹风机

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1669569A (en) * 1928-01-09 1928-05-15 Meyer William Hair drier
US2503113A (en) * 1947-04-24 1950-04-04 Victor F Hribar Vacuum hair drier
US3006079A (en) * 1957-04-17 1961-10-31 Sunbeam Corp Hair dryer
US4977690A (en) * 1989-08-03 1990-12-18 Davis Jr Albert H Drier with blower motor-heated air and flow recirculation
US5568691A (en) * 1992-09-22 1996-10-29 Secajo, Ltd. Hair dryer apparatus adapted for multi-functional usage
US6212790B1 (en) * 1999-04-15 2001-04-10 Delia Stetson Protective cover for hairdryer
CN103375440B (zh) * 2012-04-26 2016-04-13 杨丁平 一种无叶风扇
GB2533323B (en) * 2014-12-16 2017-12-20 Dyson Technology Ltd Hand held appliance
JP2016135229A (ja) * 2015-01-23 2016-07-28 日本電産株式会社 ヘアードライヤー
US20170105502A1 (en) * 2015-10-15 2017-04-20 Andis Company Hair dryer
US20180042356A1 (en) * 2016-08-12 2018-02-15 Mohawk Innovations Limited Hairdryer Assembly with Interchangeable Styling Cartridges
CN106640772A (zh) * 2016-11-23 2017-05-10 山西巨龙风机有限公司 一种特级低噪声隧道施工用风机
CN207067921U (zh) * 2017-08-08 2018-03-02 广州番禺职业技术学院 一种高效水冷式计算机机箱
CN109907461A (zh) * 2018-05-31 2019-06-21 周超强 防儿童式智能吹风机
CN208534721U (zh) * 2018-08-02 2019-02-22 苏州豹驰声学科技有限公司 一种空压机消音器
CN209557351U (zh) * 2019-01-10 2019-10-29 厦门米海智能科技有限公司 一种风机消声装置
US11622611B2 (en) * 2020-05-07 2023-04-11 Jacques Depoyian Hair dryer apparatus
USD1000701S1 (en) * 2023-04-05 2023-10-03 Foshan Sufei Technology Co., Ltd. Hair dryer

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104687707A (zh) * 2013-12-10 2015-06-10 戴森技术有限公司 手持式器具
CN105795675A (zh) * 2016-05-17 2016-07-27 杭州清稞节能环保科技有限公司 无叶风扇型纳米水离子吹风机
WO2018012897A1 (ko) * 2016-07-13 2018-01-18 이강선 송풍기
CN206129653U (zh) * 2016-09-27 2017-04-26 甘玉纯 一种无叶电吹风机
CN208676494U (zh) * 2018-05-22 2019-04-02 长沙梦龙智能科技有限责任公司 一种吹风机
CN109156966A (zh) * 2018-10-31 2019-01-08 舒可士（深圳）科技有限公司 毛发干燥装置
CN111336123A (zh) * 2020-04-03 2020-06-26 广东省无叶科技有限公司 空气放大式吹风机
CN211950926U (zh) * 2020-04-03 2020-11-17 广东省无叶科技有限公司 空气放大式吹风机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220312925A1 (en) * 2020-04-03 2022-10-06 Guangdong Wuye Technology Co., Ltd. Amplification type hair dryer

Also Published As

Publication number Publication date
US20220312925A1 (en) 2022-10-06
CN111336123A (zh) 2020-06-26

Similar Documents

Publication Publication Date Title
WO2021196756A1 (zh) 空气放大式吹风机
KR200471716Y1 (ko) 헤어 드라이어의 소음 감소 구조
JPH07190443A (ja) 送風装置
CN110074718B (zh) 手持式吸尘器
JP2013514112A5 (zh)
CN211950926U (zh) 空气放大式吹风机
KR102312083B1 (ko) 송풍기
CN211950998U (zh) 吹风机的消音装置
CN108180748B (zh) 一种烘干机通风装置及烘干机
CN111288017A (zh) 吹风机的空气放大装置
KR102096778B1 (ko) 전후방 다중 공기분출부를 갖는 날개없는 선풍기
CN210153002U (zh) 柱流背喷扩流装置
JPH06159754A (ja) 人工竜巻式排気装置
CN111271325A (zh) 吹风机的消音装置
CN211747563U (zh) 一种高速静音吹风机
CN113040502A (zh) 一种高风速的吹风机
CN211950978U (zh) 吹风机的空气放大装置
CN210353626U (zh) 一种自冷却型吹风机机头
CN216907750U (zh) 一种吹干机
WO2014156091A1 (ja) 手乾燥装置
CN213248795U (zh) 一种干手机
JPH07190441A (ja) 換気装置
CN206291285U (zh) 一种吸油烟机的引射辅助装置
JP2776735B2 (ja) 誘引換気装置
KR20020060034A (ko) 브러시가 부착된 드라이어

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20929266

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205N DATED 24.11.2022)

122 Ep: pct application non-entry in european phase

Ref document number: 20929266

Country of ref document: EP

Kind code of ref document: A1