WO2020087710A1 - 过温保护结构及毛发干燥装置 - Google Patents

过温保护结构及毛发干燥装置 Download PDF

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Publication number
WO2020087710A1
WO2020087710A1 PCT/CN2018/122865 CN2018122865W WO2020087710A1 WO 2020087710 A1 WO2020087710 A1 WO 2020087710A1 CN 2018122865 W CN2018122865 W CN 2018122865W WO 2020087710 A1 WO2020087710 A1 WO 2020087710A1
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WO
WIPO (PCT)
Prior art keywords
over
temperature protection
heater
temperature
inner layer
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Application number
PCT/CN2018/122865
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English (en)
French (fr)
Inventor
陈旭
孟凡迪
Original Assignee
舒可士（深圳）科技有限公司
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Application filed by 舒可士（深圳）科技有限公司 filed Critical 舒可士（深圳）科技有限公司
Publication of WO2020087710A1 publication Critical patent/WO2020087710A1/zh

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Classifications

    • 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

Definitions

  • the present application belongs to the technical field of hand-held appliances, and particularly relates to an over-temperature protection structure and a hair drying device.
  • Hair drying devices are mostly used for hair drying and shaping, and can also be used for other aspects of drying and art.
  • the existing hair drying device generally directly drives the fan to rotate by the motor. When the fan rotates, air can enter from the fluid inlet and then blow out from the fluid outlet to form a fluid, so as to achieve the purposes of drying and shaping.
  • the heater is used to heat the fluid entering from the fluid inlet, so that the fluid flowing out of the fluid outlet has a certain temperature.
  • the temperature of the parts around the heater will follow Increase, when the temperature of the fluid and the heater rises to a certain temperature, it will affect the surrounding parts and even cause damage to the parts.
  • the technical problem to be solved by the present application is to provide an over-temperature protection structure and a hair drying device for the technical defects of the existing blower whose heater temperature is too high, which may cause damage to surrounding parts.
  • an over-temperature protection structure for a hair drying device including a body, a heater, and a first over-temperature protection member, and a fluid channel is formed in the body,
  • the heater is disposed in the fluid channel and is used to heat the fluid medium in the fluid channel;
  • the heater includes an inner layer and a heating element, the inner layer is located inside the heating element and is used to support the heating element, and the first over-temperature protection member is disposed inside the heating element.
  • the inner layer is a plastic layer
  • a first through hole is formed in the inner layer
  • the first over-temperature protection member is disposed in the first through hole
  • a first mounting post is provided on the outer wall of the inner layer, and the first overtemperature protection member includes a first temperature measuring part and a first connecting part connected to the first temperature measuring part, the The first temperature measuring part is disposed in the first through hole, and the first connecting part is connected to the first mounting post.
  • the over-temperature protection structure further includes a second over-temperature protection member, and the second over-temperature protection member is disposed inside the heating element.
  • the first over-temperature protection member is used to cut off the connection between the heater and the power supply when the temperature in the heater is above a first preset value
  • the second over-temperature protection member is used to When the temperature in the heater is above the second preset value, the connection between the heater and the power supply is cut off, and when the temperature inside the heater is less than the second preset value, the heater and the heater are restored Power connection
  • the second preset value is smaller than the first preset value.
  • a second through hole is formed in the inner layer, and the second over-temperature protection member is provided in the second through hole.
  • a second mounting post is provided on the outer wall of the inner layer, and the second over-temperature protection member includes a second temperature measuring part and a second connecting part connected to the second temperature measuring part.
  • the second temperature measuring part is disposed in the second through hole, and the first connecting part is connected to the second mounting post.
  • a support member is provided on the outer wall of the inner layer, and the heating element is erected on the support member.
  • the inner layer is a cylinder, there are a plurality of support members, the heating element includes a plurality of heating wires, and the plurality of support members are arranged at intervals in the circumferential direction of the inner layer, the The support member extends along the axial direction of the inner layer, and the support member is provided with a plurality of positioning grooves extending along the radial direction of the inner layer;
  • a plurality of the heating wires are arranged at intervals along the axial direction of the inner layer, and the heating wires are formed with positioning portions that can be accommodated in the positioning grooves.
  • a first escape space for accommodating the first over-temperature protection member is formed on the heating wire.
  • a second escape space for accommodating the second over-temperature protection member is formed on the heating wire.
  • At least one support member is provided between the first escape space and the second escape space in the circumferential direction of the inner layer, and the heating wire is located between the first escape space and At least one positioning portion is provided between the second escape spaces.
  • the heater further includes an outer layer, and the heating element is located between the inner layer and the outer layer.
  • the first over-temperature protection member is provided in the heater, so that when the temperature of the heater is high, the heater is disconnected from the power supply, The heater stops working, avoiding damage to the heater and surrounding parts due to overheating, and thus protecting the entire over-temperature protection structure and hair drying device.
  • the first over-temperature protection member of the hair drying device is provided in the heater, so that the temperature standard of the first over-temperature protection member to cut off the power supply is the temperature inside the heater, thereby more intuitively reflecting the heating The temperature of the dryer to improve the safety performance and performance of the hair drying device.
  • another embodiment of the present application further provides a hair drying device, including the above-mentioned over-temperature protection structure.
  • FIG. 1 is a schematic structural diagram of a hair drying device provided by an embodiment of the present application.
  • FIG. 2 is a schematic cross-sectional view of a hair drying device provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a heater of a hair drying device provided by an embodiment of the present application.
  • Figure 4 is a side view of Figure 3;
  • FIG. 5 is a schematic structural view of a heater drying device provided by an embodiment of the present application in which a heater removes an outer layer;
  • Figure 6 is a side view of Figure 5;
  • FIG. 7 is a schematic diagram of the structure of the inner layer of a hair drying device provided by an embodiment of the present application.
  • 100 handle; 101, first fluid channel; 103, first segment; 105, second segment; 110, first end; 120, second end; 112, first fluid inlet;
  • 200 body; 201, second fluid channel; 210, first end; 212, second fluid inlet; 220, second end; 222, first fluid outlet; 224, second fluid outlet; 230, shell Body; 240, tube body;
  • Figure 3 is designated as the abstract drawing.
  • the hair drying device 10 in an embodiment includes a handle 100 and a body 200.
  • the body 200 is connected to the handle 100.
  • the handle 100 and the body 200 are provided with a first fluid channel 101 for fluid flow.
  • the handle 100 has a first fluid inlet 112.
  • the body 200 has a first fluid outlet 222.
  • the first fluid inlet 112 and the first fluid outlet 222 communicate to form a first fluid channel 101.
  • the first fluid inlet 112 and the first fluid outlet 222 are used for fluid to flow in and out of the first fluid channel 101, respectively.
  • the handle 100 includes a first end 110 and a second end 120 that are oppositely disposed.
  • the second end 120 of the handle 100 is connected to the body 200.
  • the first fluid inlet 112 is provided at the first end 110 of the handle 100.
  • the body 200 includes a first end 210 and a second end 220 disposed oppositely.
  • the first fluid outlet 222 is provided at the second end 220 of the body 200.
  • the first fluid channel 101 is non-linear.
  • the first fluid channel 101 includes a first section 103 and a second section 105 that are in communication.
  • the extending direction of the first segment 103 is perpendicular to the extending direction of the second segment 105.
  • the first section 103 is located inside the handle 100.
  • the second section 105 is located within the body 200. That is, fluid flows through the handle 100 along the first section 103 of the first fluid channel 101 and through the body 200 along the second section 105 of the first fluid channel 101.
  • the hair drying device 10 further includes a fan assembly 300.
  • the fan assembly 300 is disposed in the first fluid channel 101.
  • the fan assembly 300 is located in the first section 103 of the first fluid channel 101.
  • the fan assembly 300 is used to draw fluid through the first fluid inlet 112 into the first fluid channel 101.
  • the body 200 further has a second fluid inlet 212 and a second fluid outlet 224.
  • the second fluid inlet 212 and the second fluid outlet 224 communicate to form a second fluid channel 201.
  • the second fluid inlet 212 and the second fluid outlet 224 are used for another fluid to flow in and out of the second fluid channel 201, respectively.
  • the second fluid inlet 212 is provided at the first end 210 of the body 200.
  • the second fluid outlet 224 is provided at the second end 220 of the body 200.
  • the fan assembly 300 draws fluid through the first fluid inlet 112 into the first fluid channel 101 and reaches the first fluid outlet 222, flows through the body 200 and from the first fluid outlet 222
  • the effect of the outflowing fluid causes another fluid to be entrained or drawn into the second fluid channel 201 at the second fluid inlet 212 and flow along the second fluid channel 201 toward the second fluid outlet 224.
  • the other fluid flowing out through the second fluid outlet 224 merges with the fluid flowing out through the first fluid outlet 222 at the second end 220 of the body 200, thereby increasing the fluid outflow of the hair drying device 10.
  • the body 200 includes a housing 230 and a tube 240 disposed on the housing 230.
  • the second fluid channel 201 is defined by the tube body 240.
  • the second fluid channel 201 extends from the second fluid inlet 212 to the second fluid outlet 224 within the tube body 240.
  • the second section 105 of the first fluid channel 101 is defined by the gap between the tube 240 and the side wall of the housing 230.
  • the cross section of the first fluid outlet 222 has a ring shape. The first fluid outlet 222 extends around the second fluid channel 201.
  • the hair drying device 10 further includes a heater 400.
  • the heater 400 is provided in the first fluid channel 101.
  • the heater 400 is located in the second section 105 of the first fluid channel 101.
  • the heater 400 extends around the tube body 240. The heater 400 is used to heat the fluid in the first fluid channel 101.
  • the end of the heater 400 near the first fluid outlet 222 is defined as the downstream end of the heater 400, and the end of the heater 400 away from the first fluid outlet 222 is the upstream end of the heater 400.
  • the fluid enters the first fluid channel 101 via the first fluid inlet 112 and flows from the upstream end of the heater 400 through the downstream end of the heater 400, and then continues to flow along the first fluid channel 101 and reach the first fluid outlet 222, thereby achieving
  • the heater 400 selectively directly heats the fluid in the first fluid channel 101.
  • another fluid flowing through the second fluid channel 201 can also be indirectly heated by the heater 400.
  • the over-temperature protection structure of this embodiment includes a first over-temperature protection member 500 and the above-mentioned body 200 and heater 400.
  • the first over-temperature protection member 500 is disposed in the heater 400, and the first over-temperature protection member 500 is used for When the temperature in the heater 400 is above the first preset value, the heater 400 is disconnected from the power source.
  • the first over-temperature protection member is provided in the heater 400, so that when the temperature of the heater is high, the heater 400 is disconnected from the power supply, and the heater 400 Stopping work prevents the heater 400 and surrounding parts from being damaged due to overheating, thereby protecting the entire over-temperature protection structure and the hair drying device 10.
  • the first over-temperature protection member 500 of the hair drying device 10 is provided in the heater 400, so that the temperature standard of the first over-temperature protection member 500 to cut off the power supply is the temperature inside the heater 400, which can more intuitively reflect The temperature of the heater 400 can improve the safety performance and performance of the hair drying device 10.
  • the fluid channel of the over-temperature protection structure in this embodiment is the second segment 105 formed in the body 200 of the first fluid channel 101.
  • the heater 400 includes an inner layer 410, an outer layer 420, and a heating element 430.
  • the heating element 430 is disposed between the inner layer 410 and the outer layer 420.
  • the inner layer 410 is located inside the heating element 430 and is used for support Heating element 430.
  • the heater 400 may also omit the outer layer 420 provided outside the heating element 430.
  • the inner layer 410 is provided with a first mounting hole 4102 penetrating the wall of the inner layer 410.
  • the first overtemperature protection member 500 includes a first temperature measuring part 510 and a first temperature measuring part 510 connected to the first temperature measuring part 510.
  • the first connecting portion 520, the first mounting post 4104 is provided on the outer wall of the inner layer 410, the number of the first connecting portion 520 and the first mounting post 4104 are two, and the two first connecting portions 520 are respectively connected to the first At both ends of the temperature measuring portion 510, the first connecting portion 520 is fixed on the corresponding first mounting post 4104, so that the first temperature measuring portion 510 can be suspended in the first mounting hole 4102.
  • the temperature detected by the first overtemperature protection member 500 is the temperature in the inner layer 410.
  • the hair drying device 10 of the above embodiment it can more intuitively reflect the temperature of the heater 400 to increase The safety performance and use performance of the hair drying device 10.
  • the over-temperature protection structure further includes a second over-temperature protection member 600, and the second over-temperature protection member 600 is disposed in the heater 400.
  • the second over-temperature protection 600 is used to cut off the connection between the heater 400 and the power supply when the temperature in the heater 400 is above the second preset value, and when the temperature in the heater 400 is less than the second preset value The connection between the heater 400 and the power source is restored, and the second preset value is less than the first preset value.
  • the first over-temperature protection member 500 includes but is not limited to a thermal fuse
  • the second over-temperature protection member 600 may be a temperature switch, a metal dome, or the like.
  • the second over-temperature protection member 600 is disposed on the outer wall of the inner layer 410, wherein the second over-temperature protection member 600 includes a second temperature measurement part 610 and is connected to the second measurement
  • the second connecting portion 620 on the temperature portion 610 and the outer wall of the inner layer 410 are provided with second mounting posts 4106, the number of the second connecting portion 620 and the second mounting posts 4106 are two, and two second connecting portions 620 They are respectively connected to the two ends of the second temperature measuring part 610, and the second connecting part 620 is fixed on the corresponding second mounting post 4106, wherein the second temperature measuring part 610 is exposed on the outer wall of the inner layer 410.
  • the temperature standard for the second over-temperature protection 600 to disconnect or connect the heater 400 and the power source is the temperature between the inner layer 410 and the heating element 430.
  • the second over-temperature protection member 600 may be similar to the first over-temperature protection member 500, that is, a second mounting hole is provided on the outer wall of the inner layer 410, and the second over-temperature protection member The second temperature measuring part 610 of 600 is suspended in the second mounting hole. At this time, the temperature standard for the second overtemperature protection member 600 to disconnect or connect the heater 400 and the power source is the temperature in the inner layer 410.
  • the first temperature measuring part 510 of the first over-temperature protection member 500 is exposed to the outer wall of the inner layer 410, and at this time, the temperature standard for the first over-temperature protection member 500 to disconnect the heater 400 and the power source is to be located in the heating The temperature between the element 430 and the inner layer 410.
  • the specific installation methods of the first over-temperature protection member 500 and the second over-temperature protection member 600 are not limited to each other, that is, the specific installation methods of the first over-temperature protection member 500 and the specific installation of the second over-temperature protection member 600 The method can be the same or different.
  • the inner layer 410 is made of plastic material.
  • the plastic material has better plasticity and higher hardness than the traditional mica material, which is advantageous for setting the inner layer 410 for supporting the heating element 430 into other shapes and relatively fixed, and is favorable for opening on the inner layer 410
  • the first mounting hole 4102 and the second mounting hole realize the installation and fixing of the first over-temperature protection member 500 and the second over-temperature protection member 600 in the heater 400, which greatly improves the bearing adaptability of the heater 400.
  • the outer layer 420 is made of insulating material, preferably, the outer layer 420 is made of mica.
  • the first over-temperature protection member 500 and the second over-temperature protection member 600 are not affected by the fluid medium in the first fluid channel 101 during normal use. However, when clogging and abnormal heat generation in the first fluid channel 101 cause the temperature in the heater 400 to be above the second preset value, that is, the temperature in the heater 400 is greater than or equal to the second preset value, the second overtemperature The protector 600 disconnects the heater 400 from the power supply. When the blockage and abnormal heat generation are eliminated, so that the temperature in the heater 400 is less than the second preset value, the second overtemperature protector 600 restores the heater 400 to the power supply When connected, the hair drying device 10 resumes use.
  • the second over-temperature protection member 600 fails, the first fluid passage 101 is blocked and abnormally generates heat so that the temperature in the heater 400 is above the first preset value.
  • the first over-temperature protection member 500 causes the heater 400 and the power supply to The connection is disconnected, thereby protecting the heater 400 and the components around the heater 400.
  • the heater 400 is connected to a controller.
  • the controller is located in the first fluid channel 101.
  • the first temperature measuring part 510 of the first over-temperature protection member 500 is connected to the controller through the first connecting part 520 and the wire Connected
  • the second temperature measuring part 610 of the second over-temperature protection member 600 is connected to the controller through the second connecting part 620 and the wire.
  • the first over-temperature protection member 500 and the second over-temperature protection member 600 are both provided on the connection path between the heater 400 and the controller, and the power supply supplies power to the heater 400 through the controller, so that the first over-temperature protection member 500 may disconnect or restore the connection between the heater 400 and the power source, and the second over-temperature protection 600 may disconnect or restore the connection between the heater 400 and the power source.
  • the hair drying device 10 further includes a temperature detector 700 electrically connected to the controller.
  • the controller may control the heating temperature of the heater 400 according to the detection result of the temperature detector 700.
  • a support 4108 is provided on the outer wall of the inner layer 410, and the heating element 430 is erected on the support 4108.
  • the heating element 430 includes a plurality of heating wires, the number of the supporting members 4108 is plural, and the heating wires are erected on the supporting members 4108 in a one-to-one correspondence.
  • the inner layer 410 and the outer layer 420 are cylindrical.
  • a plurality of support members 4108 are arranged at intervals along the circumferential direction of the inner layer 410.
  • the support members 4108 extend along the axial direction of the inner layer 410.
  • a plurality of positioning grooves 41082 extending radially of the inner layer 410 are arranged at intervals along the axial direction of the inner layer 410, and the heating wires are formed with positioning portions 4302 that can be accommodated in the positioning grooves 41082.
  • the heating wire is formed with a first escape space 4304 for accommodating the first over-temperature protection member 500 and a second escape space 4306 for accommodating the second over-temperature protection member 600.
  • the first escape space 4304 is a first U-shaped structure formed on the heating wire toward the inner layer 410
  • the second escape space 4306 is a second U-shaped structure formed on the heating wire toward the inner layer 410.
  • An over-temperature protection member 500 is disposed in the opening of the first U-shaped structure.
  • the second over-temperature protection member 600 is disposed in the opening of the second U-shaped structure.
  • the first escape space 4304 may also be a semi-circular structure or a semi-elliptical structure formed on the heating wire with an opening toward the inner layer 410, and similarly, the second escape space 4306 may also be on the heating wire The formed opening faces the semi-circular structure or semi-elliptical structure of the inner layer 410.
  • the specific implementation manners of the first avoidance space 4304 and the second avoidance space 4306 may be the same or different.
  • At least one support 4108 is provided between the first U-shaped structure and the second U-shaped structure in the circumferential direction of the inner layer 410, and the heating wire is located between the first U-shaped structure and the second U-shaped structure
  • At least one positioning portion 4302 is provided between the structures. That is, the first U-shaped structure and the second U-shaped structure may be arranged adjacently or at intervals. When the first U-shaped structure and the second U-shaped structure are adjacently arranged, the first U-shaped structure and the second U-shaped structure
  • a support frame is provided between the structures to strengthen the structural strength of the first U-shaped structure and the second U-shaped structure. That is, it is ensured that at least one support 4108 is provided between the first escape space 4304 and the second escape space 4306 in the circumferential direction of the inner layer 410.

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  • Cleaning And Drying Hair (AREA)

Abstract

一种过温保护结构及毛发干燥装置（10），属于手持式器具的技术领域。该过温保护结构，包括体部（200）、加热器（400）及第一过温保护件（500），加热器（400）包括里层（410）及加热元件（430），里层（410）位于加热元件（430）的内侧且用于支撑加热元件（430），第一过温保护件（500）设置在加热元件（430）的内侧。这样，当加热器（400）的温度较高时，加热器（400）与电源断开，加热器（400）停止工作，避免了加热器（400）以及周围零部件由于过热导致的损坏，进而保护了整个毛发干燥装置（10）。相较于设置在加热器（400）外部的过温保护件而言，该毛发干燥装置（10）的第一过温保护件设置在加热器（400）内，这样，第一过温保护件（500）的切断电源的温度标准为加热器（400）内部的温度，从而更能直观地反映出加热器（400）的温度，以提升该毛发干燥装置（10）的安全性能及使用性能。

Description

过温保护结构及毛发干燥装置 技术领域
本申请属于手持式器具的技术领域，尤其涉及一种过温保护结构及毛发干燥装置。
 背景技术
毛发干燥装置多用于头发的干燥和整形，也可供其他方面的干燥、美工之用。现有的毛发干燥装置一般都是直接靠电机带动风扇旋转，风扇旋转时，空气能够从流体入口进入，再从流体出口吹出形成流体，以此来实现烘干、整形等目的。
 技术问题
加热器用于加热由流体入口进入的流体，从而使得由流体出口流出的流体具备一定的温度，经加热器加热后的流体在流出的过程中，会使位于加热器周围的零部件的温度随之升高，当流体及加热器的温度上升到一定温度后，会对周围的零部件产生影响，甚至导致零部件的损坏。
 技术解决方案
本申请所要解决的技术问题是：针对现有的吹风机其加热器的温度过高可能导致的周围零部件的损坏的技术缺陷，提供一种过温保护结构及毛发干燥装置。
为解决上述技术问题，一方面，本申请实施例提供一种过温保护结构，用于毛发干燥装置，包括体部、加热器及第一过温保护件，所述体部内形成有流体通道，所述加热器设置在所述流体通道内且用于加热所述流体通道内的流体介质；
所述加热器包括里层及加热元件，所述里层位于所述加热元件的内侧且用于支撑所述加热元件，所述第一过温保护件设置在所述加热元件的内侧。
可选地，所述里层为塑料层，所述里层上开设有第一通孔，所述第一过温保护件设置在所述第一通孔内。
可选地，所述里层的外壁上设置有第一安装柱，所述第一过温保护件包括第一测温部及连接在所述第一测温部上第一连接部，所述第一测温部设置在所述第一通孔内，所述第一连接部连接在所述第一安装柱上。
可选地，所述过温保护结构还包括第二过温保护件，所述第二过温保护件设置在所述加热元件的内侧。
可选地，所述第一过温保护件用于在所述加热器内的温度位于第一预设值以上时切断所述加热器与电源的连接，所述第二过温保护件用于在所述加热器内的温度位于第二预设值以上时切断所述加热器与电源的连接，在所述加热器的内侧的温度小于第二预设值时恢复所述加热器与所述电源的连接；
所述第二预设值小于所述第一预设值。
可选地，所述里层上开设有第二通孔，所述第二过温保护件设置在所述第二通孔内。
可选地，所述里层的外壁上设置有第二安装柱，所述第二过温保护件包括第二测温部及连接在所述第二测温部上的第二连接部，所述第二测温部设置在所述第二通孔内，所述第一连接部连接在所述第二安装柱上。
可选地，所述里层的外壁上设置有支撑件，所述加热元件架设在所述支撑件上。
可选地，所述里层为圆筒，所述支撑件有多个，所述加热元件包括多个加热丝，多个所述支撑件沿所述里层的周向间隔排布，所述支撑件沿所述里层的轴向延伸，所述支撑件上设置有沿所述里层的径向延伸的多个定位槽；
多个所述加热丝沿所述里层的轴向间隔排布，所述加热丝上形成有可容置于所述定位槽内的定位部。
可选地，所述加热丝上形成有用于容纳所述第一过温保护件的第一避让空间。
可选地，所述加热丝上形成有用于容纳所述第二过温保护件的第二避让空间。
可选地，所述里层的周向方向上位于所述第一避让空间与所述第二避让空间之间设置有至少一个所述支撑件，所述加热丝位于所述第一避让空间与所述第二避让空间之间设置有至少一个所述定位部。
可选地，所述加热器还包括外层，所述加热元件位于所述里层与所述外层之间。
 有益效果
上述实施例提供的毛发干燥装置的过温保护结构，第一过温保护件设置在所述加热器内，这样，当所述加热器的温度较高时，所述加热器与电源断开，加热器停止工作，避免了加热器以及周围零部件由于过热导致的损坏，进而保护了整个过温保护结构及毛发干燥装置。该毛发干燥装置的第一过温保护件设置在所述加热器内，这样，所述第一过温保护件的切断电源的温度标准为加热器内部的温度，从而更能直观地反映出加热器的温度，以提升该毛发干燥装置的安全性能及使用性能。
另一方面，本申请另一实施例还提供了一种毛发干燥装置，包括上述的过温保护结构。
 附图说明
图1是本申请一实施例提供的毛发干燥装置的结构示意图；
图2是本申请一实施例提供的毛发干燥装置的剖面示意图；
图3是本申请一实施例提供的毛发干燥装置其加热器的示意图；
图4是图3的侧视图；
图5是本申请一实施例提供的毛发干燥装置其加热器去除外层的结构示意图；
图6是图5的侧视图；
图7是本申请一实施例提供的毛发干燥装置其里层的结构示意图。
说明书中的附图标记如下：
10、毛发干燥装置；
100、手柄； 101、第一流体通道；103、第一段；105、第二段； 110、第一端；120、第二端；112、第一流体入口；
200、体部；201、第二流体通道；210、第一端部；212、第二流体入口；220、第二端部；222、第一流体出口；224、第二流体出口；230、壳体；240、管体；
300、风扇组件；
400、加热器；410、里层；4102、第一安装孔；4104、第一安装柱；4106、第二安装柱；4108、支撑件；41082、定位槽；420、外层；430、加热丝；4302、定位部；4304、第一U型结构；4306、第二U型结构；
500、第一过温保护件；510、第一测温部；520、第一连接部；
600、第二过温保护件；610、第二测温部；620、第二连接部；
700、温度检测器；
其中，指定图3为摘要附图。
 本发明的实施方式
为了便于理解本申请，下面将参照相关附图对本申请进行更全面的描述。附图中给出了本申请的较佳实施方式。但是，本申请可以以许多不同的形式来实现，并不限于本文所描述的实施方式。相反地，提供这些实施方式的目的是使对本申请的公开内容理解的更加透彻全面。
如图1及图2所示，一实施例中的毛发干燥装置10包括手柄100和体部200。体部200与手柄100连接。手柄100和体部200上设有用于供流体流动的第一流体通道101。手柄100具有第一流体入口112。体部200具有第一流体出口222。第一流体入口112和第一流体出口222连通形成第一流体通道101。第一流体入口112和第一流体出口222分别用于供流体流入和流出第一流体通道101。
如图1及图2所示，在一实施例中，手柄100包括相对设置的第一端110和第二端120。手柄100的第二端120与体部200连接。第一流体入口112设于手柄100的第一端110。体部200包括相对设置的第一端部210和第二端部220。第一流体出口222设于体部200的第二端部220。
进一步地，在本实施例中，第一流体通道101是非线性的。第一流体通道101包括相连通的第一段103和第二段105。第一段103的延伸方向与第二段105的延伸方向垂直。第一段103位于手柄100内。第二段105位于体部200内。即流体沿第一流体通道101的第一段103流动穿过手柄100并沿第一流体通道101的第二段105流动穿过体部200。
如图1及图2所示，在一实施例中，毛发干燥装置10还包括风扇组件300。风扇组件300设于第一流体通道101内。在本实施例中，风扇组件300位于第一流体通道101的第一段103内。风扇组件300用于抽吸流体穿过第一流体入口112进入第一流体通道101。       
如图2所示，在一实施例中，体部200还具有第二流体入口212和第二流体出口224。第二流体入口212和第二流体出口224连通形成第二流体通道201。第二流体入口212和第二流体出口224分别用于供另一股流体流入和流出第二流体通道201。在本实施例中，第二流体入口212设于体部200的第一端部210。第二流体出口224设于体部200的第二端部220。
在风扇组件300运行时，风扇组件300抽吸流体，使其穿过第一流体入口112进入第一流体通道101并到达第一流体出口222，流动穿过体部200且从第一流体出口222流出的流体的作用使得另一股流体在第二流体入口212处被卷吸或拉入到第二流体通道201内，且沿着第二流体通道201朝向第二流体出口224流动。该经由第二流体出口224流出的另一股流体与经由第一流体出口222流出的流体在体部200的第二端部220处汇合，从而使得毛发干燥装置10的流体的出流量增强。
如图2所示，在一实施例中，体部200包括壳体230及穿设于壳体230的管体240。第二流体通道201由管体240限定。第二流体通道201在管体240内从第二流体入口212延伸到第二流体出口224。第一流体通道101的第二段105由管体240和壳体230的侧壁之间的间隙限定。第一流体出口222的截面呈环形状。第一流体出口222围绕第二流体通道201延伸。
如图2所示，在一实施例中，毛发干燥装置10还包括加热器400。加热器400设于第一流体通道101内。在本实施例中，加热器400位于第一流体通道101的第二段105内。加热器400绕管体240延伸。加热器400用于加热第一流体通道101中的流体。
在本实施例中，为便于描述，定义加热器400靠近第一流体出口222的一端为加热器400的下游端，加热器400远离第一流体出口222的一端为加热器400的上游端。流体经由第一流体入口112进入第一流体通道101且从加热器400的上游端流动穿过加热器400的下游端，然后继续沿第一流体通道101流动并到达第一流体出口222，从而实现加热器400对该第一流体通道101内的流体的可选择性地直接加热。此外，流过第二流体通道201的另一股流体也可通过该加热器400进行间接地加热。
本实施例的过温保护结构包括第一过温保护件500以及上述的体部200及加热器400，第一过温保护件500设置在加热器400内，第一过温保护件500用于在加热器400内的温度位于第一预设值以上时切断加热器400与电源的连接。
上述实施例提供的毛发干燥装置10的过温保护结构，第一过温保护件设置在加热器400内，这样，当加热器的温度较高时，加热器400与电源断开，加热器400停止工作，避免了加热器400以及周围零部件由于过热导致的损坏，进而保护了整个过温保护结构及毛发干燥装置10。该毛发干燥装置10的第一过温保护件500设置在加热器400内，这样，第一过温保护件500的切断电源的温度标准为加热器400内部的温度，从而更能直观地反映出加热器400的温度，以提升该毛发干燥装置10的安全性能及使用性能。
本实施例中的过温保护结构的流体通道为形成在第一流体通道101的体部200内的第二段105。
如图3所示，加热器400包括里层410、外层420及加热元件430，加热元件430设置在里层410与外层420之间，里层410位于加热元件430的内侧且用于支撑加热元件430。
然而，在其他实施例中，加热器400还可以省略设置在加热元件430的外侧的外层420。
如图7所示，里层410上设置有贯穿里层410的壁的第一安装孔4102，第一过温保护件500包括第一测温部510及连接在第一测温部510上的第一连接部520，里层410的外壁上设置有第一安装柱4104，第一连接部520及第一安装柱4104的数量均为两个，两个第一连接部520分别连接在第一测温部510的两端，第一连接部520固定在对应的第一安装柱4104上，从而使得第一测温部510能够悬置于第一安装孔4102内。优选地，第一测温部510的至少部分结构位于里层410内壁的内侧。这样，第一过温保护件500检测的温度为里层410内的温度，当上述实施例的毛发干燥装置10在使用过程中，从而更能直观地反映出加热器400的温度，以提升该毛发干燥装置10的安全性能及使用性能。
如图2、图3及图7所示，过温保护结构还包括第二过温保护件600，第二过温保护件600设置在加热器400内。其中，第二过温保护件600用于在加热器400内的温度位于第二预设值以上时切断加热器400与电源的连接，且在加热器400内的温度小于第二预设值时恢复加热器400与电源的连接，第二预设值小于第一预设值。
本实施例中，第一过温保护件500包括但不限于热熔丝，第二过温保护件600可以是温度开关、金属弹片等部件。
如图2、图3及图7所示，第二过温保护件600设置在里层410的外壁上，其中，第二过温保护件600包括第二测温部610及连接在第二测温部610上的第二连接部620，里层410的外壁上设置有第二安装柱4106，第二连接部620及第二安装柱4106的数量均为两个，两个第二连接部620分别连接在第二测温部610的两端，第二连接部620固定在对应的第二安装柱4106上，其中第二测温部610外露于里层410的外壁上。此时，第二过温保护件600断开或连接加热器400与电源的温度标准是里层410与加热元件430之间的温度。
然而，在其他实施例中，第二过温保护件600还可以与第一过温保护件500的设置类似，即，里层410的外壁上设置有第二安装孔，第二过温保护件600的第二测温部610悬置于第二安装孔内，此时，第二过温保护件600断开或连接加热器400与电源的温度标准是里层410内的温度。
还可以是，第一过温保护件500的第一测温部510外露于里层410的外壁，此时，第一过温保护件500断开加热器400与电源的温度标准是为位于加热元件430与里层410之间的温度。其中，第一过温保护件500及第二过温保护件600的具体安装方式互相不受限制，即，第一过温保护件500的具体安装方式与第二过温保护件600的具体安装方式可以相同，也可以不同。
具体地，本实施例中，里层410由塑料材质制成。塑料材质相比传统的云母材质而言具有更好的可塑性，硬度更高，有利于将用于支撑加热元件430的里层410设置成其他形状以及相对固定，且有利于在里层410上开设第一安装孔4102及第二安装孔，从而实现了第一过温保护件500及第二过温保护件600在加热器400内的安装固定，大大提高了加热器400的承载适应性。外层420由绝缘材质制成，优选地，外层420由云母制成。
第一过温保护件500及第二过温保护件600在正常使用中不受第一流体通道101内的流体介质的影响。然而，当第一流体通道101内发生堵塞及异常发热以致加热器400内的温度处于第二预设值以上，即加热器400内的温度大于或等于第二预设值时，第二过温保护件600使得加热器400与电源的连接断开，当堵塞及异常发热排除，使得加热器400内的温度小于第二预设值时，第二过温保护件600恢复加热器400与电源的连接，毛发干燥装置10恢复使用。
当第二过温保护件600失效，第一流体通道101内发生堵塞及异常发热以致加热器400内的温度位于第一预设值以上，第一过温保护件500使得加热器400与电源的连接断开，进而保护加热器400及位于加热器400周围的零部件。
在本实施例中，加热器400与一控制器连接，控制器位于第一流体通道101内，第一过温保护件500的第一测温部510通过第一连接部520及导线与控制器连接，第二过温保护件600的第二测温部610通过第二连接部620及导线与控制器连接。具体地，第一过温保护件500及第二过温保护件600均设置在加热器400与控制器的连接路径上，电源通过控制器向加热器400供电，以使第一过温保护件500可以断开或恢复加热器400与电源的连接，以及，第二过温保护件600可以断开或恢复加热器400与电源的连接。
在如图3至图7所示的实施例中，毛发干燥装置10还包括与控制器电连接的温度检测器700，控制器可根据温度检测器700的检测结果控制加热器400的加热温度。
如图7所示，里层410的外壁上设置有支撑件4108，加热元件430架设在支撑件4108上。其中，加热元件430包括多个加热丝，支撑件4108的数量为多个，加热丝一一对应地架设在支撑件4108上。
具体地，里层410及外层420为圆筒状，多个支撑件4108沿里层410的周向间隔排布，支撑件4108沿里层410的轴向延伸，支撑件4108上设置有沿里层410的径向延伸的多个定位槽41082，多个加热丝沿里层410的轴向间隔排布，加热丝上形成有可容置于定位槽41082内的定位部4302。
如图4及图6所示，加热丝上形成有用于容纳第一过温保护件500的第一避让空间4304及用于容纳第二过温保护件600的第二避让空间4306。具体地，第一避让空间4304为加热丝上形成的开口朝向里层410的第一U型结构，第二避让空间4306为加热丝上形成的开口朝向里层410的第二U型结构，第一过温保护件500设置在第一U型结构的开口内。第二过温保护件600设置在第二U型结构的开口内。
然而，在其他实施例中，第一避让空间4304还可以是加热丝上形成的开口朝向里层410的半圆形结构或半椭圆结构，类似地，第二避让空间4306也可以是加热丝上形成的开口朝向里层410的半圆形结构或半椭圆结构。其中，第一避让空间4304与第二避让空间4306的具体实施方式可以相同也可以不同。
如图7所示，里层410的周向方向上位于第一U型结构与第二U型结构之间设置有至少一个支撑件4108，加热丝的位于第一U型结构与第二U型结构之间设置有至少一个定位部4302。即，第一U型结构与第二U型结构可以相邻设置，也可以间隔设置，当第一U型结构与第二U型结构相邻设置时，第一U型结构与第二U型结构之间设置有一支撑架，以加强第一U型结构与第二U型结构的结构强度。即，保证里层410的周向方向上位于第一避让空间4304与第二避让空间4306之间设置有至少一个支撑件4108。
以上实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (14)

  1. 一种过温保护结构，用于毛发干燥装置，其特征在于，包括体部、加热器及第一过温保护件，所述体部内形成有流体通道，所述加热器设置在所述流体通道内且用于加热所述流体通道内的流体介质；
    所述加热器包括里层及加热元件，所述里层位于所述加热元件的内侧且用于支撑所述加热元件，所述第一过温保护件设置在所述加热元件的内侧。
  2. 根据权利要求1所述的过温保护结构，其特征在于，所述里层为塑料层，所述里层上开设有第一通孔，所述第一过温保护件设置在所述第一通孔内。
  3. 根据权利要求2所述的过温保护结构，其特征在于，所述里层的外壁上设置有第一安装柱，所述第一过温保护件包括第一测温部及连接在所述第一测温部上第一连接部，所述第一测温部设置在所述第一通孔内，所述第一连接部连接在所述第一安装柱上。
  4. 根据权利要求2所述的过温保护结构，其特征在于，所述过温保护结构还包括第二过温保护件，所述第二过温保护件设置在所述加热元件的内侧。
  5. 根据权利要求4所述的过温保护结构，其特征在于，所述第一过温保护件用于在所述加热器内的温度位于第一预设值以上时切断所述加热器与电源的连接，所述第二过温保护件用于在所述加热器内的温度位于第二预设值以上时切断所述加热器与电源的连接，在所述加热器的内侧的温度小于第二预设值时恢复所述加热器与所述电源的连接；
    所述第二预设值小于所述第一预设值。
  6. 根据权利要求5所述的过温保护结构，其特征在于，所述里层上开设有第二通孔，所述第二过温保护件设置在所述第二通孔内。
  7. 根据权利要求6所述的过温保护结构，其特征在于，所述里层的外壁上设置有第二安装柱，所述第二过温保护件包括第二测温部及连接在所述第二测温部上的第二连接部，所述第二测温部设置在所述第二通孔内，所述第一连接部连接在所述第二安装柱上。
  8. 根据权利要求4所述的过温保护结构，其特征在于，所述里层的外壁上设置有支撑件，所述加热元件架设在所述支撑件上。
  9. 根据权利要求8所述的过温保护结构，其特征在于，所述里层为圆筒，所述支撑件有多个，所述加热元件包括多个加热丝，多个所述支撑件沿所述里层的周向间隔排布，所述支撑件沿所述里层的轴向延伸，所述支撑件上设置有沿所述里层的径向延伸的多个定位槽；
    多个所述加热丝沿所述里层的轴向间隔排布，所述加热丝上形成有可容置于所述定位槽内的定位部。
  10. 根据权利要求9所述的过温保护结构，其特征在于，所述加热丝上形成有用于容纳所述第一过温保护件的第一避让空间。
  11. 根据权利要求10所述的过温保护结构，其特征在于，所述加热丝上形成有用于容纳所述第二过温保护件的第二避让空间。
  12. 根据权利要求11所述的过温保护结构，其特征在于，所述里层的周向方向上位于所述第一避让空间与所述第二避让空间之间设置有至少一个所述支撑件，所述加热丝位于所述第一避让空间与所述第二避让空间之间设置有至少一个所述定位部。
  13. 根据权利要求1-12任一项所述的过温保护结构，其特征在于，所述加热器还包括外层，所述加热元件位于所述里层与所述外层之间。
  14. 一种毛发干燥装置，其特征在于，包括权利要求1-13任意一项所述的过温保护结构。
PCT/CN2018/122865 2018-10-31 2018-12-21 过温保护结构及毛发干燥装置 WO2020087710A1 (zh)

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