CN216568806U

CN216568806U - Hair care device

Info

Publication number: CN216568806U
Application number: CN202122730649.7U
Authority: CN
Inventors: 何阳阳; 潘俊; 马加华
Original assignee: Kingclean Electric Co Ltd; Lexy Electric Green Energy Technology Suzhou Co Ltd
Current assignee: Kingclean Electric Co Ltd; Lexy Electric Green Energy Technology Suzhou Co Ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-05-24
Anticipated expiration: 2031-11-09

Abstract

The utility model relates to a hair care device. The hair care device comprises a complete machine with an air supply channel, air flow in the environment is used for hair drying operation after passing through the air supply channel, and the air flow is absorbed into hot air flow under the action of a heating group in the air supply channel, so that the hair drying effect is improved. In practical use, at least one wire in a circuit formed among the heating group, the temperature fuse and the power supply can be arranged and wired from the internal wiring cavity of the barrel. According to the arrangement, on the basis of meeting the requirement of electric connection, a special space is provided for wiring layout, and meanwhile, the part of wires do not need to occupy the space outside the wiring cavity. Therefore, redundant space for wiring does not need to be reserved in the heating cavity of the barrel, the radial size of the barrel is reduced, and the size of the whole machine is further reduced. And just because the wire is walked the line from the line chamber of walking inside the barrel, can not cause the installation of wire and heating intracavity structure to interfere to the simplification assembly.

Description

Hair care device

Technical Field

The utility model relates to the technical field of household small appliances, in particular to a hair care device.

Background

In daily life, hair drying is often accelerated by using a hair dryer after washing the hair. When arranging heating wires, particularly under the condition of double-layer heating wires, an existing common hair drier is generally wound from one side close to a power supply to one side close to an air outlet, then wound from one side close to the air outlet to one side close to the power supply, and then connected with a temperature control structure. Because, the fuse setting in the temperature control structure is in the position department that the heater outside just is close to the air outlet, leads to the fuse to need electrically conductive piece just can connect heater and/or power, and the heater strip not only electrically conducts and can release the heat in heating process, leads to electrically conductive piece to set up to have the difficulty, needs to electrically conductive apart from the heater outside distance, just can realize electrically conductive setting, and then can lead to the hair-dryer structure great.

SUMMERY OF THE UTILITY MODEL

Based on this, provide a hair care implement, when satisfying the line demand of walking, can also ensure that the complete machine assembly is simple and convenient, the size is less.

A hair care implement comprising: the whole machine is provided with an air supply channel, and the air supply channel comprises an air inlet and an air outlet; a power supply disposed proximate to the air inlet; the complete machine includes: the heating unit, the temperature safety piece and the cylinder body; the barrel is provided with a wiring cavity and a heating cavity which radially surrounds the outside of the wiring cavity, the heating group and the temperature safety piece are both arranged in the heating cavity, and airflow flowing in from an air inlet of the air supply channel flows out from an air outlet of the air supply channel after passing through the heating group; the temperature fuse is arranged close to the air outlet and used for detecting the ambient temperature at the installation position of the temperature fuse and regulating and controlling the electric connection state of the heating group and the power supply according to the ambient temperature; the heating group is provided with a first electrode port and a second electrode port, and the first electrode port and the second electrode port are both arranged close to the air inlet or the air outlet; the heating group, the temperature fuse and the power supply are connected to form a loop, the loop comprises at least one wire, the at least one wire penetrates through the wiring cavity and is connected with a first unconnected electrode, close to the air outlet, in the first electrode port, the second electrode port and the temperature fuse to a second unconnected electrode, close to the air inlet, in the first electrode port, the second electrode port and the power supply.

In one embodiment, when the ambient temperature detected by the temperature fuse is greater than a second preset temperature threshold, the temperature fuse is in an off state, and the heating group is disconnected from the power supply.

In one embodiment, the first electrode port and the second electrode port are both close to the air inlet, the two terminals of the temperature fuse are close to the air outlet, the loop comprises two wires, one terminal of the temperature fuse is connected with the first electrode port through one wire, the other terminal of the temperature fuse is connected with one end of the power supply through the other wire, and the other end of the power supply is connected with the second electrode port; or, first electrode port with the second electrode port all is close to the air outlet, two terminals of temperature insurance piece are close to the air outlet, the return circuit includes two wires, a terminal of temperature insurance piece with first electrode port directly links, another terminal of temperature insurance piece through a wire with the one end of power is connected, the other end of power through another wire with the second electrode port is connected.

In one embodiment, the system comprises; the whole machine further comprises a temperature adjusting part, wherein the temperature adjusting part is used for acquiring a first temperature on the peripheral side of the temperature adjusting part in the heating cavity and regulating and controlling the electric connection state of the heating group and the power supply according to the first temperature; when the first temperature is higher than a first preset temperature threshold value, the temperature adjusting piece is in a disconnected state, so that the connection between the heating group and the power supply is disconnected; when the first temperature is less than or equal to the first preset temperature threshold, the temperature adjusting piece is in a conducting state, so that the connection between the heating group and the power supply is recovered; preferably, an inwardly recessed installation cavity is formed at a side of the heating cavity radially inwards, the installation cavity is communicated with the heating cavity, and the temperature regulating member is installed in the installation cavity.

In one embodiment, the length of the installation cavity extends along the axis of the cylinder, the temperature adjusting piece is arranged in the installation cavity along the axial direction of the cylinder, one end of the temperature adjusting piece is close to the air inlet, and the other end of the temperature adjusting piece is close to the air outlet.

In one embodiment, the first electrode port and the second electrode port are both close to the air inlet, the two terminals of the temperature fuse are close to the air outlet, the loop comprises a wire, one terminal of the temperature fuse is connected with the first electrode port through a wire, the other terminal of the temperature fuse is connected with one end of the temperature adjusting piece, the other end of the temperature adjusting piece is connected with one end of the power supply, and the other end of the power supply is connected with the second electrode port; or, the first electrode port and the second electrode port are both close to the air inlet, two terminals of the temperature safety piece are close to the air outlet, the loop comprises a wire, the first electrode port is directly connected with one end of the power supply, the second electrode port is connected with one end of the temperature adjusting piece, one end of the temperature adjusting piece is connected with one terminal of the temperature safety piece, and the other terminal of the temperature safety piece is connected with the other end of the power supply through the wire; or the first electrode port and the second electrode port are both close to the air outlet, two terminals of the temperature safety piece are close to the air outlet, the loop comprises a lead, one terminal of the temperature safety piece is connected with one end of the power supply through the lead, the other terminal of the temperature safety piece is directly connected with the first electrode port, the second electrode port is connected with one end of the temperature adjusting piece, and the other end of the temperature adjusting piece is connected with the other end of the power supply; or, first electrode port with the second electrode port all is close to the air outlet, two terminals of temperature insurance spare are close to the air outlet, the return circuit includes a wire, first electrode port passes through the wire with the one end of power is connected, the second electrode port with a terminal of temperature insurance spare directly links, another terminal of temperature insurance spare with the one end of temperature regulation spare is connected, the other end of temperature regulation spare with the other end of power is connected.

In one embodiment, the first preset temperature threshold is in the range of 150 ℃ -160 ℃; and/or the second preset temperature threshold is in the range of 199.6-200.4 ℃.

In one embodiment, the temperature fuse pieces are arranged at intervals along the circumference of the barrel; the temperature insurance piece is clamped at the end part of the barrel and/or the heating group facing the air outlet.

In one embodiment, the wire extends along an axial length of the heating group that exceeds at least 50% of its own axial length.

In one embodiment, the heating group comprises heating layers arranged in a regular even number layer and a supporting frame for supporting the heating layers, and the heating layers in the regular even number layer are overlapped along the radial direction of the cylinder; each layer of the heating layer is correspondingly provided with the support frame.

In one embodiment, the number of the heat generating layers is two, the two heat generating layers are respectively a first heat generating layer and a second heat generating layer, and the two heat generating layers are sequentially overlapped outwards along the radial direction of the routing cavity; and a first heat insulation sheet is arranged between the first heat generation layer and the second heat generation layer.

In one embodiment, the cartridge body comprises an inner cartridge and an outer cartridge surrounding the outer side of the inner cartridge, the heating cavity is arranged between the outer cartridge and the inner cartridge, the cartridge cavity of the inner cartridge forms the wiring cavity, and the mounting cavity is configured on the inner cartridge; the distance between the cylinder body and the outer cylinder is 1.5cm-3 cm.

In one embodiment, the outer wall of the inner barrel is circumferentially provided with a second heat insulation sheet.

In one embodiment, one end of the inner cylinder facing the power supply is provided with a first wiring hole communicated with the wiring cavity; the wire which is connected between the temperature fuse and the power supply and passes through the wire cavity is taken as a first wire, the wire which is connected between the heating group and the power supply and passes through the wire cavity is taken as a second wire, and the first wire and/or the second wire pass through the first wire routing hole via the wire cavity and are connected with the power supply.

In one embodiment, a wire clamping buckle is arranged on the wall of the routing cavity, and the wire clamping buckle is used for installing the first lead and/or the second lead on the inner wall of the inner barrel.

In one embodiment, the complete machine further comprises a circuit board group connected to the power supply, and the heating group and the temperature fuse are both connected to the power supply through the circuit board group; the circuit board group comprises a circuit board frame and a circuit board arranged on the circuit board frame; the circuit board frame with the urceolus deviates from the one end sealing connection of air outlet, circuit board frame structure have with the second wire hole of first wire hole intercommunication.

In one embodiment, the circuit board is disposed on a side of the circuit board frame away from the air supply channel, a wire plug is disposed at the second routing hole, and the first wire and/or the second wire are connected to the circuit board through the wire plug.

In one embodiment, the complete machine further comprises a complete machine shell covering the outer cylinder and the outer side of the circuit board group, a first gap is formed between the complete machine shell and the outer cylinder, and the width of the first gap along the radial direction of the outer cylinder is 0.5mm-2 mm.

In one embodiment, the complete machine further comprises an ion assembly arranged in the inner barrel; the ion assembly has a mount for connection with the inner barrel, the mount configured with a routing channel for routing the wires.

In one embodiment, the whole machine further comprises a temperature detection piece which is arranged in the heating cavity and connected with the power supply; the temperature detection part is used for collecting a third temperature on the peripheral side of the temperature detection part in the heating cavity and feeding the third temperature back to the complete machine controller, and the complete machine controller controls the third temperature to be constant.

The utility model has the beneficial effects that: when the hair care device is actually used, air flow in the environment is used for hair drying operation after passing through the air supply channel, and the air flow is absorbed into hot air flow under the action of the heating group in the air supply channel, so that the hair drying effect is improved. In practical use, at least one wire in a circuit formed among the temperature fuse, the heating group and the power supply can be arranged and wired from the internal wiring cavity of the barrel. Such setting is equivalent to walk the line chamber and be located the inboard of heating group, and above-mentioned at least one wire can pass in order to walk the line from the line chamber of heating group inboard to on satisfying the basis of electric connection, there is special space to be convenient for walk the line overall arrangement, makes this part wire need not to occupy the space outside walking the line chamber simultaneously. Therefore, redundant space for wiring does not need to be reserved in the heating cavity of the barrel, the radial size of the barrel is reduced, and the size of the whole machine is further reduced. In addition, the wires are routed from the routing cavity on the inner side of the heating group, so that the installation interference of the wires and the structure in the heating cavity can not be caused, and the assembly is simplified.

Drawings

FIG. 1 is a schematic view of a hair care appliance provided by an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A-A;

FIG. 3 is a partial cross-sectional view of the hair care appliance provided in FIG. 2;

FIG. 4 is a first partial isometric view of the hair care appliance provided in FIG. 2;

FIG. 5 is an enlarged view of a portion B-B of FIG. 4;

FIG. 6 is a first partial schematic view of the hair care appliance provided in FIG. 4;

FIG. 7 is a second partial schematic view of the hair care appliance provided in FIG. 4;

FIG. 8a is a schematic view of a first current circuit of the overall device in the hair care appliance of FIG. 1;

FIG. 8b is a schematic view of a second current circuit of the whole unit in the hair care device of FIG. 1;

FIG. 9a is a schematic view of a third current circuit of the overall hair care appliance of FIG. 1;

FIG. 9b is a schematic view of a fourth current circuit of the overall hair care appliance of FIG. 1;

FIG. 9c is a schematic view of a fifth current circuit of the overall hair care appliance of FIG. 1;

FIG. 9d is a schematic view of a sixth current circuit of the overall hair care appliance of FIG. 1;

FIG. 10 is a second partial isometric view of the hair care appliance provided in FIG. 2;

fig. 11 is an isometric view of a wiring board rack in the hair care appliance provided in fig. 2;

fig. 12 is an isometric view of an ionic assembly of the hair care appliance provided in fig. 2.

Reference numerals: 10-a group of circuit boards; 11-a circuit board frame; 12-a circuit board; 20-heating group; 21-a heat-generating layer; 22-a support frame; 23-a first insulating sheet; 30-a barrel body; 31-inner cylinder; 32-an outer barrel; 41-temperature regulating member; 42-temperature fuse; 50-an ionic component; 51-a fixed mount; 52-a transmitting needle; 53-electrode slice; 60-electrical connection lines; 61-a wire; 62-conductor three; 70-a temperature detection member; 100-a complete machine shell; 101-a first gap; 111-a second wire hole; 112-line plug; 201-a support plate; 202-a heating wire; 211-a first heat-generating layer; 212-a second heat generating layer; 301-routing cavity; 302-a heating chamber; 311-a mounting cavity; 312-a first wire hole; 321-a second insulating sheet; 511-avoidance slot; 512-wiring groove; 611, a first lead; 614-conductor four; 701-connecting arm; 1000-complete machine; 1001-air supply channel; 1002-air inlet; 1003-air outlet; 2011-avoidance holes.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

When the double-layer heating frame is manufactured, the two ends of the heating wire form a positive electrode port and a negative electrode port of the heating wire, a first electrode port of the positive electrode port and the negative electrode port starts to be wound from a first initial position, the first initial position is far away from the air outlet until the first electrode port is wound to a target position, and the target position is close to the air outlet and has a distance with the first initial position. At this time, the first layer of heating wire is formed. And continuously winding the steel wire from the first target position to a second initial position in an inclined upward manner, wherein the second initial position is close to the air outlet, and the steel wire is wound from the second initial position to the termination position in a direction away from the air outlet to form a second layer of heating wire. Therefore, the winding of the heating wire in the double-layer heating frame is completed. At this time, the second electrode port of the two positive and negative electrode ports of the heating wire is located at the termination position. It can be seen that the first start position and the end position are both located on one side away from the air outlet, the first electrode port located at the first start position and the second electrode port located at the end position are both located on one side away from the air outlet, and the temperature control fuse needs to be disposed at a position close to the air outlet. Therefore, the temperature control fuse cannot be directly electrically connected with the heating wire due to a certain distance between the temperature control fuse and any one of the positive and negative electrode ports of the heating wire, and cannot be directly electrically connected with the power supply due to a certain distance between the temperature control fuse and the power supply, and the temperature control fuse needs to be electrically connected with the heating wire and/or the power supply through a conductive piece (such as an electric wire or a metal strip). And the heater not only electrically conducts and the heater during operation, the heat that sends can cause the harm to electrically conductive piece, and electrical components all sets up and is located the heater outside, generally think that sets up electrically conductive piece in the heater outside or distolateral, increase clearance (make electrically conductive piece apart from the heater outside long distance) this moment and solve the problem of electrically conductive piece damage, electrically conductive piece is damaged easily moreover, and need set up bearing structure just can not contact with the heater, just also need increase whole quick-witted size, can have the problem of space waste. In order to reduce the size, a mica sheet is arranged between the outer side of the heating wire and the electric conductor, the size of the whole blower is reduced by utilizing the heat insulation function of the mica sheet, but the heat insulation capacity of the mica sheet is limited, only a metal band is utilized, a certain gap is required to be left between the heating wires of the metal band, the metal band is required to be made into a specific shape to meet the requirement of the connection of the metal band and each electronic element which needs to be connected in a circuit, and the manufacturing and the assembling are complex.

In view of the above problems, as shown in fig. 2 to 4, an embodiment of the present invention provides a hair care device, in which terminals of electrical components located near an air outlet and near an air inlet are connected by wires, the terminals need to cross over a heating wire to connect the terminals, and the wires are disposed inside the heating wire, so that there is no need to dispose electrical conductors outside the heating wire, and thus the wiring can be implemented without increasing the size of the whole hair dryer, the wires are also well protected, and the wires do not need to be manufactured into a specific shape, and the connection between the terminals can be satisfied by bending, and the manufacturing and assembly are simple. Specifically, the hair care device provided by the utility model comprises a complete machine 1000 with an air supply channel 1001 and a power supply arranged at an air inlet 1002 of the air supply channel 1001. The whole machine 1000 comprises a heating group 20, a temperature fuse 42 and a cylinder 30. The cartridge 30 has a routing cavity 301 and a heating cavity 302 radially surrounding the routing cavity 301, and the heating assembly 20 and the temperature fuse 42 are disposed in the heating cavity 302. The airflow flowing in from the air inlet 1002 of the air supply duct 1001 passes through the heating unit 20 and then flows out from the air outlet 1003 of the air supply duct 1001. The temperature fuse 42 is installed near the air outlet 1003, and the temperature fuse 42 detects the ambient temperature at the installation position thereof and regulates the electrical connection state of the heating unit 20 and the power supply according to the ambient temperature. The heating group 20 has a first electrode port and a second electrode port, both of which are disposed near the air inlet 1002 or the air outlet 1003. The heating group 20, the temperature fuse 42 and the power supply form a loop, the loop includes at least one wire 61, the at least one wire 61 passes through the wire from the wire cavity 301, the at least one wire 61 connects the first unconnected electrode near the air outlet 1003 in the first electrode port, the second electrode port and the temperature fuse to the second unconnected electrode near the air inlet 1002 in the first electrode port, the second electrode port and the power supply.

As shown in fig. 1-4, in actual use, the heating chamber 302 serves as part of the air supply passage 1001. The air flow in the environment enters through the air inlet 1002 of the air supply channel 1001, flows along the air supply channel 1001, and flows out from the air outlet 1003 thereof for drying hair. And at the same time, the air flows in the air supply passage 1001, and is changed into hot air by the heating action of the heating group 20 in the heating cavity 302, so as to improve the hair drying effect. In this process, because the temperature fuse 42, the heating group 20 and the power supply always form a current loop, the temperature fuse 42 always monitors the temperature in the heating cavity 302 to regulate and control the electrical connection state between the heating group 20 and the power supply, and the heating group 20 can be ensured to have better use safety while meeting different heating requirements. The routing cavity 301 is located inside the heating group 20, wherein at least one wire 61 in the loop that is electrically connected to the heating group 20 can pass through the routing cavity 301 inside the heating group 20 for routing. That is, by using the routing cavity 301 disposed inside the heating group 20 to route the wires 61, there is a special space for routing layout on the basis of satisfying the electrical connection, so that the wires 61 do not occupy the space outside the routing cavity 301. Therefore, no space for wiring needs to be reserved in the heating cavity 302 of the cylinder 30, the radial size of the cylinder 30 is reduced, and the radial size of the whole machine 1000 is further reduced. In addition, the wire 61 is routed from the routing cavity 301 arranged inside the heating group 20, so that the installation interference of the wire 61 and the structure inside the heating cavity 302 is avoided, the assembly is simplified, and the wire 61 is well protected.

For convenience of description of the first electrode port and the second electrode port, the following description will be made on the structure of the heating group 20. The method comprises the following specific steps:

as shown in fig. 4, 5, 7 and 10, in some embodiments, the heating group 20 includes the heat generating layers 21 arranged in a regular even number of layers and the supporting frames 22 for supporting the heat generating layers 21, and the heat generating layers 21 in the regular even number of layers are stacked in a radial direction of the cylinder 30. Each heating layer 21 is correspondingly provided with a support frame 22. Specifically, the heat generation efficiency of the heating group 20 is improved by the arrangement of the plurality of heat generation layers 21, so that the hair drying operation can be performed more quickly and efficiently. Meanwhile, the even-numbered heating layers 21 meet the wiring requirement of wiring from the wiring cavity 301 inside the barrel 30.

As shown in fig. 4, 5, 7 and 10, in a specific embodiment, the number of the heat generating layers 21 is two, and the two heat generating layers are respectively the first heat generating layer 211 and the second heat generating layer 212, and the two heat generating layers are sequentially stacked along the routing cavity 301 radially outward, and the first heat insulating sheet 23 is disposed between the first heat generating layer 211 and the second heat generating layer 212. The heating power is improved by the arrangement of the double-layer heating layer 21. And the first heat-generating layer 211 and the second heat-generating layer 212 are arranged so as not to cause a short circuit therebetween by the first heat-insulating sheet 23. In yet another specific embodiment, the first thermal insulating sheet 23 is a mica sheet. Wherein the first electrode port and the second electrode port may be located at the first heat generating layer 211 and the second heat generating layer 212, respectively. When the first heat generating layer 211 is at the inner periphery of the stack, the second heat generating layer 212 is at the outer periphery, and vice versa.

The arrangement of the internally routed wires 61 is described below in detail with respect to the arrangement of the temperature fuse 42.

As shown in fig. 4 and 7, in some embodiments, when the temperature fuse 42 detects an ambient temperature greater than a second preset temperature threshold, the temperature fuse 42 is in an open state and the heating group 20 is disconnected from the power source. That is, in the present embodiment, the temperature fuse 42 is provided to regulate the heating state of the heating unit 20, thereby improving the safety of the hair care device. The second temperature is referred to as the ambient temperature detected by the temperature fuse 42, and the second preset temperature threshold is the limit temperature at which the temperature fuse 42 operates. Specifically, when the temperature fuse 42 detects that the second temperature is greater than the second preset temperature threshold, the temperature fuse 42 is fused, so that the circuit between the temperature fuse 42, the heating unit 20 and the power supply is broken, and the power supply cannot continuously supply the working current to the heating unit 20, so as to protect the heating unit 20, prevent the heating unit 20, other electrical components or structural members from being burnt out due to the excessive current, and prevent the hair or other dried objects from being damaged.

In one particular embodiment, the temperature fuse 42 is a fuse, as shown in fig. 4 and 7. Wherein, the temperature safety member 42 is arranged along the circumference of the barrel 30, and the temperature safety member 42 is clamped at the end of the heating unit 20 facing the air outlet 1003. That is, the temperature fuse 42 is disposed transversely with respect to the cylinder 30 so as to be more fully contacted by the hot air flowing through the outlet 1003. Furthermore, the support frame 22 of the heating unit 20 is provided with a slot so that the pin of the temperature fuse 42 can be inserted into the slot. Of course, a clamping groove may be provided on the cylinder 30 to fix the temperature fuse 42.

As shown in fig. 4 and 7, when the loop only includes the temperature fuse 42, the arrangement of the wires 61 routed from the routing cavity 301 will be described in detail. The first wire 61 connected between the temperature fuse 42 and the power source and passing through the routing cavity 301 is taken as a first wire 611, the second wire 61 connected between the heating set 20 and the power source and passing through the routing cavity 301 is taken as a second wire, and the fourth wire 614 is taken as a second wire 611 connected between the temperature fuse 42 and the heating set 20 and passing through the routing cavity 301. The method comprises the following specific steps:

as shown in fig. 8a, in some embodiments, the power source, the first electrode port, and the second electrode port are all close to the air inlet 1002, and the two terminals of the temperature fuse 42 are close to the air outlet 1003. In this case, the first remaining electrode ports are two terminals of the temperature fuse 42, and the second remaining electrode ports are an electrode port on the second heat generating layer 212 and one end of the power supply for connecting with the temperature fuse 42. The loop comprises two wires 61, in particular: one terminal of the temperature fuse 42 is connected to the first electrode port through a fourth conducting wire 614, the other terminal of the temperature fuse 42 is connected to one end of the power supply through a first conducting wire 611, and the other end of the power supply is connected to the second electrode port. Specifically, the second heat generation layer 212 having the first electrode port located at the outer ring and the first heat generation layer 211 having the second electrode port located at the inner ring will be described as an example. It is assumed that the current of the power supply flows to the second heat generating layer 212 through the temperature fuse 42 and then flows to the power supply through the first heat generating layer 211. At this time, because there is a large distance between the thermal fuse 42 and the first electrode port, and between the thermal fuse 42 and the power supply, the four conducting wires 614 and the one conducting wire 611 connected therebetween are disposed through the routing cavity 301. In other embodiments, the current of the power supply may flow to the temperature fuse 42 through the second heat-generating layer 212 and the first heat-generating layer 211 sequentially, and then flow to the power supply through the temperature fuse 42, where the first electrode port is located at the first heat-generating layer 211 of the inner ring, and the second electrode port is located at the second heat-generating layer 212 of the outer ring.

As shown in fig. 8b, in some embodiments, the power source is near the air inlet 1002, the first electrode port and the second electrode port are both near the air outlet 1003, and the two terminals of the temperature fuse 42 are near the air outlet 1003. In this case, one end of the temperature fuse 42 is directly connected to the electrode port on the second heat generating layer 212, the first remaining electrode port is a terminal of the temperature fuse 42 connected to the power supply and an electrode port on the first heat generating layer 211, and the second remaining electrode port is two ends of the power supply. The loop comprises two wires 61, one terminal of the temperature fuse 42 is directly connected with the first electrode port, the other terminal of the temperature fuse 42 is connected with one end of the power supply through a first wire 611, and the other end of the power supply is connected with the second electrode port through a second wire. Specifically, the current of the power supply flows to the second heat generating layer 212 through the temperature fuse 42 and then flows to the power supply through the first heat generating layer 211. At this time, the first electrode port is located at the second heat generation layer 212 of the outer ring, and the second electrode port is located at the first heat generation layer 211 of the inner ring. Of course, the current of the power supply may flow to the temperature fuse 42 through the second heat generating layer 212 and the first heat generating layer 211 sequentially, and then flow to the power supply through the temperature fuse 42; at this time, the second electrode port is located at the second heat generation layer 212 of the outer ring, and the first electrode port is located at the first heat generation layer 211 of the inner ring.

To sum up, the first electrode port and the second electrode port are always located on the same side on the two layers of heating layers 21, and are arranged in different ways relative to the air outlet 1003 and the air inlet 1002, so that multiple current circulation conditions exist in the loop between the temperature fuse 42, the two layers of heating layers 21 and the power supply, and therefore two wires 61 in the loop can be arranged through the wiring cavity 301 inside the barrel 30, and the radial size of the barrel 30 is reduced. It should be noted that the first conducting wire, the second conducting wire and the fourth conducting wire are named for convenience of description.

It should be added that the length of the wire 61 routed from the routing cavity 301 along the axial direction of the heating group 20 exceeds at least 50% of the axial length of the heating group 20 itself. That is, if the electrical components existing in the heat generating cavity 302 are located relatively close to each other, the electrical components are connected at a short distance, and at this time, the connection can be realized by means of the pins. Therefore, the connection manner of the wire 61 exists in the remote connection state. In a particular implementation, the extension of the wire 61 in the axial direction of the heating group 20 is more than 50% of the axial length of the heating group 20 itself. Of course, the ratio may be 55% or 60%.

As shown in fig. 2, 3, 5 and 6, in some embodiments, a radially inward side of the heating cavity 302 is configured with an inwardly recessed mounting cavity 311, and the mounting cavity 311 communicates with the heating cavity 302. The whole machine 1000 further comprises a temperature adjusting part 41 connected to the power supply, and the temperature adjusting part 41 is installed in the installation cavity 311. The temperature adjusting member 41 is used for acquiring a first temperature around the temperature adjusting member 41 in the heating cavity 302, and adjusting and controlling an electrical connection state between the heating group 20 and the power supply according to the first temperature. When the first temperature is higher than the first preset temperature threshold, the temperature adjusting member 41 is in a disconnected state, so that the heating unit 20 is disconnected from the power supply. When the first temperature is lower than the first preset temperature threshold, the temperature adjusting member 41 is in a conducting state, so that the connection between the heating unit 20 and the power supply is recovered.

Specifically, the mounting cavity 311 is formed recessed radially inward on the heating cavity 302, reducing the radial dimension of the cartridge 30. The opening of the mounting cavity 311 is located at a side facing the heating cavity 302, and the arrangement is such that the mounting cavity 311 is communicated with the heating cavity 302, not only facilitating the assembly of the temperature adjusting member 41, but also reducing interference in the assembly of the temperature adjusting member 41 and the heating group 20. Moreover, it is because the installation cavity 311 is communicated with the heating cavity 302 that there is no obstacle between the temperature adjustment member 41 and the heating cavity 302, so that the temperature in the heating cavity 302 can be sensed more fully. It should be noted that the temperature adjusting member 41 detects the ambient temperature (i.e., the first temperature) around the heating cavity 302, and senses the ambient temperature to regulate the electrical connection state between the heating group 20 and the power supply. Wherein the first preset temperature threshold is actually the safe working temperature of the temperature adjusting member 41, thereby improving the safety of the hair care device. That is, in the present embodiment, the heating group 20 is doubly protected by the cooperative use of the temperature adjustment member 41 and the temperature safety member 42, thereby improving the safety of the hair care device. The temperature adjusting part 41 and the temperature safety part 42 jointly form a temperature control group.

As shown in fig. 5 and 6, in some embodiments, the length of the mounting cavity 311 extends in the axial direction of the cylinder 30, and the temperature adjustment member 41 is disposed in the mounting cavity 311 in the axial direction of the cylinder 30. The arrangement is such that the current inside the temperature adjusting member 41 is substantially parallel to the axis of the barrel 30, and the temperature detected by the temperature adjusting member 41 is more uniform, including the temperature near the air outlet 1003 and the temperature near the air inlet 1002, so that the detection result is more accurate. The length of the mounting cavity 311 extends in the axial direction of the cylinder 30, and the width of the mounting cavity 311 extends in the circumferential direction of the cylinder 30, so that the temperature adjusting member 41 is accommodated in the mounting cavity 311. If the thermostat 41 is a large-sized thermostat, the length direction of the thermostat may be arranged along the axial direction of the cylinder 30. Compared with the temperature controller transversely arranged relative to the cylinder 30, the arrangement mode has more sufficient space, and the temperature controller is more convenient to mount. Moreover, because the structure setting of temperature controller, it can not appear the condition of bending. Therefore, the temperature controller is arranged along the axis of the barrel 30 in the length direction, so that the temperature monitoring is satisfied, meanwhile, the temperature controller is prevented from being bent, a few conducting wires can be arranged, and the structure is simplified. In one embodiment, the temperature adjustment element 41 has two engaging lugs, which are fixed to the wall of the mounting cavity 311 by screws.

As shown in fig. 4 and 7, in one particular embodiment, the first predetermined temperature threshold ranges from 150 ℃ to 160 ℃. This temperature range is set to a safe use temperature while the hair care appliance has a sufficient dry hair working temperature. For example, the first temperature is 150 ℃, 156 ℃, 160 ℃, etc. The second preset temperature threshold is 199.6-200.4 deg.C, such as 199.6 deg.C, 200 deg.C, 200.4 deg.C. The second preset temperature threshold is higher than the first preset temperature threshold, the second preset temperature threshold is the use critical temperature of the hair care device, and if the second preset temperature threshold is exceeded, the hair care device is damaged. In fact, the difference between the first preset temperature threshold and the second preset temperature threshold is only about 60 ℃, and this difference is set to meet the working requirements without the heating group 20 being suddenly disconnected.

As shown in fig. 4 and 7, it can be understood that the temperature adjusting member 41 and the temperature securing member 42 are connected in series to the heating block 20. Meanwhile, compared with the temperature adjusting part 41 and the temperature safety part 42, after the heating group 20 is disconnected from the power supply under the action of the temperature adjusting part 41, when the first temperature is lower than the first preset temperature threshold, the connection can be restored, so as to facilitate the continuous use; when the second temperature detected by the temperature fuse 42 reaches the second predetermined temperature threshold, the disconnection of the heating unit 20 from the power source is not recoverable. Meanwhile, the temperature fuse 42 is generally operated after the temperature adjusting member 41 is failed. The temperature safety member 42 is disposed at the air outlet 1003, because the air at the air outlet 1003 is heated by the heating unit 20 and the temperature is in the highest state. Namely: and the use safety is improved through double protection.

The following description will be made for the arrangement of the wires 61 routed from the routing cavity 301 when the temperature control unit in the loop includes the temperature fuse 42 and the temperature adjusting element 41. The method comprises the following specific steps:

as shown in fig. 9a, in some embodiments, the power source, the first electrode port and the second electrode port are close to the air inlet 1002, two terminals of the temperature safety member 42 are close to the air outlet 1003, the temperature safety member 42 is directly connected to the temperature adjusting member 41, the first remaining electrode port is a terminal of the temperature safety member 42 connected to the electrode port of the second heat generating layer 212, and the second remaining electrode port is an electrode port of the second heat generating layer 212. The circuit comprises a wire 61, in particular: one terminal of the temperature fuse 42 is connected to the first electrode port through the fourth conducting wire 614, the other terminal of the temperature fuse 42 is connected to one end of the temperature adjusting element 41, the other end of the temperature adjusting element 41 is connected to one end of the power supply, and the other end of the power supply is connected to the second electrode port. Specifically, the current of the power supply flows to the temperature fuse 42 through the temperature adjusting member 41, and then flows to the power supply through the temperature fuse 42, the second heat generating layer 212, and the first heat generating layer 211 in sequence. At this time, the first electrode port is located at the second heat generation layer 212 of the outer ring. The second electrode port is located at the first heat-generating layer 211 of the inner circle. Of course, the current of the power supply may flow to the temperature safety member 42 through the second heat generating layer 212 and the first heat generating layer 211 sequentially, and then flow to the temperature adjusting member 41 through the temperature safety member 42, so as to flow to the power supply; at this time, the first electrode port is located at the first heat generation layer 211 of the inner ring, and the second electrode port is located at the second heat generation layer 212 of the outer ring.

As shown in fig. 9b, in another embodiment, the power supply, the first electrode port and the second electrode port are both close to the air inlet 1002, two terminals of the temperature safety member 42 are close to the air outlet 1003, the temperature safety member 42 is directly connected to the temperature adjusting member 41, the first remaining electrode port is a terminal of the temperature safety member 42 connected to the power supply, and the second remaining electrode port is an end of the power supply connected to the temperature safety member 42. The circuit comprises a wire 61, in particular: the first electrode port is directly connected with one end of a power supply, the second electrode port is connected with one end of the temperature adjusting piece 41, one end of the temperature adjusting piece 41 is connected with one terminal of the temperature safety piece 42, and the other terminal of the temperature safety piece 42 is connected with the other end of the power supply through a first wire 611. Specifically, the current of the power supply flows to the temperature adjusting member 41 through the second heat generating layer 212 and the first heat generating layer 211 in sequence, and then flows to the power supply through the temperature fuse member 42. At this time, the first electrode port is located at the second heat generation layer 212 of the outer ring, and the second electrode port is located at the first heat generation layer 211 of the inner ring. Of course, the flow direction can be reversed, and then, the first electrode port is located at the first heat generating layer 211 of the inner ring, and the second electrode port is located at the second heat generating layer 212 of the outer ring.

As shown in fig. 9c, in another embodiment, the first electrode port and the second electrode port are both close to the air outlet 1003, two terminals of the temperature safety member 42 are close to the air outlet 1003, one end of the temperature safety member 42 is directly connected to the electrode port on the second heat generating layer 212, the first remaining electrode port is a terminal of the temperature safety member 42 connected to a power supply, and the second remaining electrode port is a terminal of the power supply connected to the temperature safety member 42. The circuit comprises a wire 61, in particular: one terminal of the temperature fuse 42 is connected with one end of the power supply through a first conducting wire 611, the other terminal of the temperature fuse 42 is directly connected with the first electrode port, the second electrode port is connected with one end of the temperature adjusting part 41, and the other end of the temperature adjusting part 41 is connected with the other end of the power supply. Specifically, the current of the power may flow to the second heat generating layer 212 through the temperature fuse 42, to the temperature adjusting member 41 through the first heat generating layer 211, and then to the power. At this time, the first electrode port is located at the second heat generation layer 212 of the outer ring, and the second electrode port is located at the first heat generation layer 211 of the inner ring. Alternatively, the current of the power supply flows to the second heat generating layer 212 through the temperature adjusting member 41, flows to the temperature fuse 42 through the first heat generating layer 211, and then flows to the power supply. At this time, the second electrode port is located at the second heat generation layer 212 of the outer ring, and the first electrode port is located at the first heat generation layer 211 of the inner ring.

As shown in fig. 9d, in another embodiment, the first electrode port and the second electrode port are both close to the air outlet 1003, two terminals of the temperature safety member 42 are close to the air outlet 1003, one end of the temperature safety member 42 is directly connected to the electrode port on the first heat-generating layer 211, the first remaining electrode port is an electrode port on the second heat-generating layer 212, and the second remaining electrode port is an end of the power supply connected to the second heat-generating layer 212. The circuit comprises a wire 61, in particular: the first electrode port is connected with one end of a power supply through a second lead, the second electrode port is directly connected with one terminal of the temperature fuse 42, the other terminal of the temperature fuse 42 is connected with one end of the temperature adjusting piece 41, and the other end of the temperature adjusting piece 41 is connected with the other end of the power supply. Specifically, the current of the power supply flows to the temperature fuse 42 through the second heat generating layer 212 and the first heat generating layer 211 in sequence, and then flows to the power supply through the temperature adjusting member 41. At this time, the first electrode port is located at the second heat generation layer 212 of the outer ring, and the second electrode port is located at the first heat generation layer 211 of the inner ring.

In addition, when the temperature fuse 42 and the temperature adjustment element 41 exist at the same time and the loop includes two wires 61, the two terminals of the temperature fuse 42 may be connected to one end of the power supply and one end of the heating group 20 through a wire 611 and a wire 614, respectively, and the temperature adjustment element 41 may be connected between the other end of the power supply and the other end of the heating group 20; it is also possible that the temperature control element 41 is connected between the temperature fuse element 42 and the directly connected heating group 20.

In summary, the circuit is composed of a power supply, a temperature adjusting member 41, a temperature safety member 42 and two heat generating layers 21. At this moment, the positions of the first electrode port and the second electrode port in the double-layer heating layer 21 relative to the air outlet 1003 and the air inlet 1002 can be adjusted, and the positions of the temperature adjusting part 41, the temperature safety part 42 and the two-layer heating layer 21 can be changed, so that at least one wire 61 is always arranged in the loop through the wiring cavity 301 inside the cylinder 30, and the radial size of the cylinder 30 is reduced.

As shown in fig. 4 and 7, in some embodiments, the complete machine 1000 further includes a temperature detecting element 70 disposed in the heating cavity 302 and connected to the power supply, the temperature detecting element 70 is configured to collect a third temperature around the temperature detecting element 70 in the heating cavity 302, and feed the third temperature back to the complete machine controller, and the complete machine controller controls the third temperature to be constant. Specifically, the temperature detecting element 70 monitors the ambient temperature in the heating cavity 302 and feeds back the ambient temperature to the overall controller, and the overall controller sends an instruction to the power supply to adjust the current transmitted to the heating group 20 to be in a relatively stable state, so as to ensure that the heating group 20 can stably output heat. The temperature detecting element 70 is connected to the power supply through the third wire 62, and because the temperature detecting element 70 is spaced from any one of the positive and negative electrode ports of the power supply, the third wire 62 passes through the wire from the temperature detecting element 70 from the wire cavity 301 inside the barrel 30 and is connected to the power supply. The temperature detecting member 70 is connected in parallel with the temperature control unit. In one specific embodiment, the temperature sensing member 70 employs a negative temperature coefficient thermistor.

As shown in fig. 4 and 7, in some embodiments, the temperature fuse 42 and the temperature sensing member 70 are spaced apart along the circumference of the barrel 30. That is, the temperature fuse 42 and the temperature detector 70 are both located at the air outlet 1003 of the air supply channel 1001 to detect the temperature at the air outlet 1003. Moreover, the temperature safety member 42 and the temperature detecting member 70 are spaced apart from each other to ensure that no installation interference occurs therebetween, thereby facilitating the respective assembly and reducing the temperature detection interference. In a specific embodiment, the temperature detecting element 70 has two connecting arms 701 spaced apart from each other along the circumferential direction of the barrel 30, and the corresponding supporting frame 22 is provided with a connecting slot, and the connecting arms 701 are clamped in the connecting slot, so as to assemble the temperature detecting element 70 with respect to the supporting frame 22. Correspondingly, the temperature fuse 42 can also be connected in the same manner. In yet another specific embodiment, the temperature sensing element 70 and the temperature fuse 42 are disposed at a 120 degree angle. In other embodiments, the two may be disposed opposite to each other. In another embodiment, the temperature safety member 42 and the temperature detecting member 70 can be connected to the cylinder 30 by a connecting arm 701, and the connecting groove is disposed on the cylinder 30. Of course, the temperature safety member 42 may be clamped to the supporting frame 22, and the temperature detecting member 70 may be clamped to the barrel 30. In any arrangement, the temperature protector 42 and the temperature detector 70 may be stably attached.

Therefore, in this embodiment, the whole machine 1000 has at least two current loops, the first current loop is the power supply, the heating unit 20 and the temperature control unit, and the second current loop is the power supply and the temperature detecting element 70. The two current loops work independently. The first current loop mainly regulates and controls the connection state of the heating group 20 and the power supply through the setting of the temperature control group, and the second current loop mainly regulates and controls the heating power of the heating group 20 to be constant through the setting of the temperature detection piece 70.

As shown in fig. 4, 5 and 7, when the third wire 62 and one or two or three of the first wire 611, the second wire and the fourth wire 614 are present in the routing cavity 301, they can be bundled together, so as to improve the neatness of the routing and the overall accommodation of the routing. In a specific embodiment, the wall of the routing cavity 301 is provided with a wire clip, and the wire clip is used to fix the electrical connection wire 60 (refer to at least one or more of the first wire 611, the second wire, the third wire 62 and the fourth wire 614, which are routed from inside, and are referred to as the electrical connection wire 60 hereinafter for convenience of description) that needs to be routed inside with respect to the wall of the routing cavity 301. Particularly, the wire clamping buckle is fixedly arranged on the wall of the wiring cavity 301 and is provided with a wire clamping groove, and the electric connecting wire 60 is clamped through the wire clamping groove relative to the wire clamping buckle, so that the electric connecting wire 60 is convenient to fix when being wired, and the neatness of wiring is improved.

It should be noted that, when the electrical connection line 60 is routed in the routing cavity 301, it may be a straight line type, a curved line type, or a spiral type. Which is mainly determined according to the actual wiring situation.

As shown in fig. 2, 3 and 6, in some embodiments, the barrel 30 includes an inner barrel 31 and an outer barrel 32 surrounding the inner barrel 31, a heating cavity 302 is disposed between an inner wall of the outer barrel 32 and an outer wall of the inner barrel 31, the barrel cavity of the inner barrel 31 forms the routing cavity 301, a mounting cavity 311 is formed on the inner barrel 31, and the mounting cavity 311 is formed by recessing radially inward along the outer wall of the inner barrel 31. The distance between the inner cylinder 31 and the outer cylinder 32 is 1.5cm-3 cm. Specifically, the inner cylinder 31 and the outer cylinder 32 are arranged to separate the heating cavity 302 and the routing cavity 301, so as to ensure that the heating cavity 302 and the routing cavity 301 do not interfere with each other. The restriction on the distance between the inner cylinder 31 and the outer cylinder 32 directly affects the size of the space for installing the heating unit 20. When the space is small, it is inconvenient to install a structure for routing on the outer cylinder 32, thereby facilitating the routing of the inner cylinder 31. Meanwhile, the arrangement ensures stable assembly among the inner cylinder 31, the heating group 20 and the outer cylinder 32, and cannot easily generate shaking. Moreover, when the distance between the inner cylinder 31 and the outer cylinder 32 is small, the cylinder diameter of the outer cylinder 32 can be reduced appropriately in the case of the inner cylinder 31 of the same size.

In summary, the temperature adjusting member 41, the temperature securing member 42, the double-layer heating layer 21 and the temperature detecting member 70 are disposed in the heating chamber 302, i.e., outside the inner cylinder 31. Therefore, the above-described lead for connection to the power supply, if provided in the heating chamber 302, may be easily damaged due to an excessively high temperature within the heating chamber 302. If an insulating space is provided between the heating group 20 and the wires, it will cause a waste of space. Therefore, the arrangement of the routing cavity 301 inside the inner barrel 31 is adopted in the application, so that the wires can pass through the routing cavity 301, the routing arrangement is facilitated, and the radial size of the whole barrel 30 is reduced.

As shown in fig. 4 and 5, in a specific embodiment, the distance between the first heat generating layer 211 of the inner ring and the outer wall of the inner cylinder 31 is between 0.1mm and 0.5mm, while the distance between the second heat generating layer 212 of the outer ring and the inner wall of the outer cylinder 32 is between 0.1mm and 0.5 mm. By limiting the distance between the heating group 20 and the radial two sides of the cylinder 30, the heating group 20 is ensured to have sufficient installation space. Moreover, because the above-mentioned spacing is limited, the radial two sides of the heating group 20 do not have enough space for routing, so the electrical connection wires 60 can be routed from the internal routing cavities 301. In a further specific embodiment, the second thermal insulation sheet 321 is disposed around both the inner wall of the outer cylinder 32 and the outer wall of the inner cylinder 31, so as to reduce the heat transferred from the heating set 20 to the outer cylinder 32 and the inner cylinder 31, and thus reduce the heat dissipation of the heating set 20. Wherein, the second heat insulation sheet 321 on the outer wall of the inner barrel 31 is located at the opening of the installation cavity 311, so that the temperature adjusting member 41 can detect the ambient temperature in the heating cavity 302. The second heat insulation sheet 321 is a mica sheet. The outer wall of the inner cylinder 31 is provided with the second heat insulation sheet 321 in a surrounding manner, so as to protect the inner cylinder 31, and at the same time, electrical components can be arranged in the inner cylinder 31 and wires can be arranged in the routing cavity in the inner cylinder 31, because the electrical components and the wires can be protected by the second heat insulation sheet 321, and further cannot be influenced by the heat of the heating group 20.

As shown in fig. 2, 3, 6 and 10, in some embodiments, an end of the inner barrel 31 facing the power supply is provided with a first wire hole 312 communicated with the wire cavity 301, and the first wire 611, the second wire and the third wire 62 all pass through the first wire hole 312 via the wire cavity 301 to be connected to the power supply. Specifically, the first wire hole 312 is provided to facilitate the storage of the wires, thereby reducing the disorder in the wire routing. In a specific embodiment, the end of the inner cylinder 31 facing away from the air outlet 1003 is reduced in diameter to a first wire hole 312. Or, a baffle is arranged at an end of one side of the inner cylinder 31 away from the air outlet 1003, and the first wire hole 312 is arranged in the middle of the baffle. It should be noted that the fourth lead 614 connected between the temperature fuse 42 and the heating group 20 also passes through the first wire hole 312, but it is not necessarily connected to a power source. Meanwhile, according to the different wiring manners in the different embodiments, the wires passing through the first wire holes 312 are different, and this cannot be generally understood.

As shown in fig. 2, 3 and 11, in some embodiments, the whole machine 1000 further includes a circuit board assembly 10 connected to a power supply, and the heating assembly 20 and the temperature control assembly are both connected to the power supply via the circuit board assembly 10. The circuit board group 10 includes a circuit board frame 11 and a circuit board 12 mounted to the circuit board frame 11. The circuit board frame 11 is hermetically connected to an end of the outer cylinder 32 facing away from the air outlet 1003, and the circuit board frame 11 is configured with a second wire hole 111 communicating with the first wire hole 312. Specifically, the circuit board frame 11 is used to support the circuit board 12, and the circuit board frame 11 is connected to the outer cylinder 32 in a sealing manner to improve the sealing performance of the air supply duct 1001. The cooperation of the second wiring hole 111 and the first wiring hole 312 provides a constraint on the extending track of the wires towards the circuit board 12, thereby improving the neatness of wiring. In a specific embodiment, the aperture of the first wire hole 312 is larger than that of the second wire hole 111 so that the extended end of the second wire hole 111 is inserted into the first wire hole 312.

As shown in fig. 2, 3 and 11, in a specific embodiment, the circuit board 12 is disposed on a side of the wiring board frame 11 away from the air supply channel 1001, and the wire plug 112 is disposed at the second wire hole 111, and the wire passing through the second wire hole 111 is connected to the circuit board 12 through the wire plug 112. This arrangement isolates the circuit board 12 from the air blowing duct 1001, thereby improving the protection of the circuit board 12. The wire plug 112 is arranged at the second wire hole 111, so that the sealing property between the second wire hole 111 and the conducting wire is improved. Specifically, in combination with the above-mentioned cooperation between the first wire hole 312 and the second wire hole 111 and the arrangement of the wire plug 112 at the second wire hole 111, the air supply channel 1001 is isolated from the wire cavity 301 on the barrel 30, that is, the air flow only flows in the heating cavity 302 of the barrel 30 and does not pass through the wire cavity 301, that is, the isolation between the air duct and the line is achieved. Due to the arrangement, the protection performance of structures such as wires arranged in the wiring cavity 301 is improved.

In general, when the circuit board 12 is provided, the circuit board 12 is connected to a power source through a switch, and an electrical connection state between the power source and the circuit board 12 is controlled through the switch. The wires connected to the power supply are all connected to the circuit board 12, and then control is achieved through a connecting line between the circuit board 12 and the power supply. Here, the circuit board 12 is a main circuit board. The whole machine 1000 further comprises a display screen circuit board located on one side of the circuit board 12, which is far away from the air outlet 1003, and the display screen circuit board is connected with a power supply through a main circuit board and a switch. The motor of the hair care device is electrically connected with the main circuit board.

As shown in fig. 1 and 2, in some embodiments, the complete machine 1000 further includes a complete machine shell 100 covering the outer cylinder 32 and the circuit board group 10, a first gap 101 is formed between the complete machine shell 100 and the outer cylinder 32, and the width of the first gap 101 in the radial direction of the outer cylinder 32 is between 0.5mm and 2 mm. Specifically, the whole housing 100 is provided to protect the outer tube 32, the circuit board assembly 10, the inner tube 31, the heating assembly 20, and the like, so that external impurities do not easily enter the hair care device. The provision of the first gap 101 between the outer cylinder 32 and the entire housing 100 allows the radial dimension of the outer cylinder 32 to be reduced appropriately while ensuring the same overall housing 100 size of the adjustment member. And the width of the first gap 101 is limited, so that an effective heat insulation space is provided between the outer cylinder 32 and the whole machine shell 100 while ensuring that the outer cylinder is stably installed with respect to the whole machine shell 100, thereby reducing heat dissipation of the heating group 20.

As shown in fig. 2, 4, 5, 7 and 12, in some embodiments, the hair care device further includes an ion assembly 50 mounted in the inner cylinder 31, the ion assembly 50 including a holder 51 and an emitter pin 52 mounted to the holder 51. The fixing frame 51 is fixedly connected with the inner cylinder 31, a wiring groove 512 is arranged on the fixing frame 51, the electric connection wire 60 extends in the wiring cavity 301 (namely the cylinder cavity of the inner cylinder 31) through the wiring groove 512, and meanwhile, the arrangement of the wiring groove 512 also has a fixing function on the electric connection wire 60. Wherein, a refrigeration sheet is arranged at the bottom of the emission needle 52 so as to condense the air on the emission needle 52 into condensation water drops. Two electrode plates 53 are respectively arranged on two sides of the emitter pin 52, wherein one electrode plate 53 is connected with a high-voltage wire, and the other electrode plate is connected with a low-voltage wire, so that electric arcs generated between the two electrode plates 53 in high and low voltage can be conveniently generated, and condensed water at the end part of the emitter pin 52 can be electrolyzed into water ions. Meanwhile, the hair care device further comprises an anion generator which is connected with an electrode plate 53 connected with a high-voltage lead, and anions are generated through the electrode plate 53 and then emitted together with water ions on the emitter pin 52 for hair drying care. In one embodiment, the fixing frame 51 is provided with an avoiding groove 511 to avoid the concave mounting cavity 311 on the inner cylinder 31.

Finally, as shown in fig. 4, 5, 7 and 10, in this embodiment, for example, the diameter of the second heat generating layer 212 is larger than that of the first heat generating layer 211, and the second heat generating layer 212 is sleeved outside the first heat generating layer 211. The first heat generating layer 211 and the second heat generating layer 212 are substantially identical in structure and each include a heat generating wire 202. The supporting frame 22 corresponding to each heating layer 21 comprises a plurality of supporting plates 201 arranged around the axis of the barrel 30 at intervals. The outer side of each support plate 201 is provided with a mounting groove, and the heating wire 202 is wound on the plurality of support plates 201 and fixed through the mounting grooves, thereby forming the whole heating unit 20. Wherein, the support plate 201 is a mica plate. In another embodiment, the temperature safety member 42 and the temperature detecting member 70 may be assembled by forming a groove in the supporting plate 201. An avoidance hole 2011 is formed in the support plate 201 arranged in the second heat-generating layer 212, so as to avoid the heating wire 202 in the first heat-generating layer 211.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims

1. A hair care implement, comprising:

the whole machine (1000) is provided with an air supply channel (1001), and the air supply channel (1001) comprises an air inlet (1002) and an air outlet (1003);

a power source disposed proximate to the air inlet (1002);

the complete machine (1000) comprises: a heating group (20), a temperature fuse (42) and a cylinder (30);

the barrel body (30) is provided with a wiring cavity (301) and a heating cavity (302) radially surrounding the outside of the wiring cavity (301), the heating group (20) and the temperature safety piece (42) are both arranged in the heating cavity (302), and air flow flowing in from an air inlet (1002) of the air supply channel (1001) flows out from an air outlet (1003) of the air supply channel (1001) after passing through the heating group (20);

the temperature insurance part (42) is installed close to the air outlet (1003), the temperature insurance part (42) detects the ambient temperature at the installation position of the temperature insurance part, and the electric connection state of the heating group (20) and the power supply is regulated and controlled according to the ambient temperature;

the heating group (20) is provided with a first electrode port and a second electrode port, and the first electrode port and the second electrode port are both arranged close to the air inlet (1002) or the air outlet (1003);

the heating group (20) and the temperature fuse (42) are connected with the power supply to form a loop, the loop comprises at least one wire (61), at least one wire (61) penetrates through the wiring cavity (301) to be wired, and at least one wire (61) is connected with the first electrode port, the second electrode port and a first unconnected electrode, close to the air outlet (1003), in the temperature fuse to the first electrode port, the second electrode port and a second unconnected electrode, close to the air inlet (1002), in the power supply.

2. A hair care appliance as claimed in claim 1, characterized in that the temperature fuse (42) is in an open state when the temperature fuse (42) detects an ambient temperature greater than a second preset temperature threshold, the heating group (20) being disconnected from the power supply.

3. The hair care appliance according to claim 1, characterized in that the first electrode port and the second electrode port are both close to the air inlet (1002), two terminals of the temperature fuse (42) are close to the air outlet (1003), the circuit comprises two wires (61), one terminal of the temperature fuse (42) is connected with the first electrode port through one wire (61), the other terminal of the temperature fuse (42) is connected with one end of the power supply through the other wire (61), and the other end of the power supply is connected with the second electrode port; or,

the first electrode port and the second electrode port are both close to the air outlet (1003), two terminals of the temperature fuse (42) are close to the air outlet (1003), the loop comprises two wires (61), one terminal of the temperature fuse (42) is directly connected with the first electrode port, the other terminal of the temperature fuse (42) is connected with one end of the power supply through one wire (61), and the other end of the power supply is connected with the second electrode port through the other wire (61).

4. The hair care device of claim 2, characterized in that the complete machine (1000) further comprises a temperature adjusting member (41), the temperature adjusting member (41) is used for collecting a first temperature at the periphery of the temperature adjusting member (41) in the heating cavity (302), and regulating the electric connection state of the heating group (20) and the power supply according to the first temperature;

when the first temperature is higher than a first preset temperature threshold value, the temperature adjusting piece (41) is in a disconnected state, so that the heating group (20) is disconnected from the power supply; when the first temperature is less than or equal to the first preset temperature threshold, the temperature adjusting piece (41) is in a conducting state, and connection between the heating group (20) and the power supply is recovered.

5. A hair care appliance as claimed in claim 4, characterized in that an inwardly recessed mounting chamber (311) is formed on a side radially inward of the heating chamber (302), and the mounting chamber (311) communicates with the heating chamber (302), the temperature regulating member (41) being mounted in the mounting chamber (311).

6. The hair care device of claim 5, wherein the length of the mounting cavity (311) extends along the axial direction of the cylinder (30), and the temperature adjusting member (41) is disposed in the mounting cavity (311) along the axial direction of the cylinder (30), one end of the temperature adjusting member (41) is close to the air inlet (1002), and the other end of the temperature adjusting member (41) is close to the air outlet (1003).

7. The hair care device according to claim 6, characterized in that the first electrode port and the second electrode port are both close to the air inlet (1002), two terminals of the temperature fuse (42) are close to the air outlet (1003), the circuit comprises a wire (61), one terminal of the temperature fuse (42) is connected with the first electrode port through the wire (61), the other terminal of the temperature fuse (42) is connected with one end of the temperature adjusting member (41), the other end of the temperature adjusting member (41) is connected with one end of the power supply, and the other end of the power supply is connected with the second electrode port;

or, the first electrode port and the second electrode port are both close to the air inlet (1002), two terminals of the temperature fuse (42) are close to the air outlet (1003), the loop comprises a wire (61), the first electrode port is directly connected with one end of the power supply, the second electrode port is connected with one end of the temperature adjusting piece (41), one end of the temperature adjusting piece (41) is connected with one terminal of the temperature fuse (42), and the other terminal of the temperature fuse (42) is connected with the other end of the power supply through the wire (61);

or, the first electrode port and the second electrode port are both close to the air outlet (1003), two terminals of the temperature fuse (42) are close to the air outlet (1003), the loop comprises a wire (61), one terminal of the temperature fuse (42) is connected with one end of the power supply through the wire (61), the other terminal of the temperature fuse (42) is directly connected with the first electrode port, the second electrode port is connected with one end of the temperature adjusting part (41), and the other end of the temperature adjusting part (41) is connected with the other end of the power supply;

or, the first electrode port and the second electrode port are both close to the air outlet (1003), two terminals of the temperature fuse (42) are close to the air outlet (1003), the loop comprises a wire (61), the first electrode port is connected with one end of the power supply through the wire (61), the second electrode port is directly connected with one terminal of the temperature fuse (42), the other terminal of the temperature fuse (42) is connected with one end of the temperature adjusting piece (41), and the other end of the temperature adjusting piece (41) is connected with the other end of the power supply.

8. A hair care appliance as claimed in claim 4, characterized in that said first preset temperature threshold is in the range of 150 ℃ -160 ℃ and said second preset temperature threshold is in the range of 199.6 ℃ -200.4 ℃.

9. The hair care appliance according to claim 2, characterized in that the temperature fuse (42) is arranged in the circumferential direction of the cartridge (30); the temperature insurance piece (42) is clamped at the end part of the cylinder body (30) and/or the heating group (20) facing the air outlet (1003).

10. The hair care appliance of claim 1, wherein the wire extends along an axial length of the heating group that exceeds at least 50% of its own axial length.

11. The hair care device according to claim 1, characterized in that the heating group (20) comprises a heat generating layer (21) arranged in a positive even number of layers and a supporting frame (22) for supporting the heat generating layer (21), and the heat generating layers (21) in the positive even number of layers are stacked in a radial direction of the cylinder (30); each heating layer (21) is correspondingly provided with the support frame (22).

12. The hair care device according to claim 11, wherein the number of the heat generating layers (21) is two, namely a first heat generating layer (211) and a second heat generating layer (212), which are sequentially stacked radially outward along the routing cavity (301); a first heat insulation sheet (23) is arranged between the first heat generation layer (211) and the second heat generation layer (212).

13. The hair care device of claim 5, characterized in that the cartridge body (30) comprises an inner cartridge (31) and an outer cartridge (32) enclosed outside the inner cartridge (31), the heating cavity (302) is arranged between the outer cartridge (32) and the inner cartridge (31), the cartridge cavity of the inner cartridge (31) forms the routing cavity (301), and the mounting cavity (311) is configured on the inner cartridge (31);

the distance between the inner cylinder (31) and the outer cylinder (32) is 1.5cm-3 cm.

14. The hair care appliance according to claim 13, characterized in that the outer wall of the inner cartridge (31) is provided circumferentially with a second heat insulating sheet (321).

15. The hair care device according to claim 13, characterized in that one end of the inner cylinder (31) facing the power supply is provided with a first wiring hole (312) communicated with the wiring cavity (301); the lead (61) which is connected between the temperature fuse (42) and the power supply and passes through the wiring cavity (301) is taken as a first lead (611), the lead (61) which is connected between the heating group (20) and the power supply and passes through the wiring cavity (301) is taken as a second lead, and the first lead (611) and/or the second lead pass through the first wiring hole (312) and are connected with the power supply.

16. The hair care device of claim 15, characterized in that a wall of the routing cavity (301) is provided with a snap fastener for mounting the first wire (611) and/or the second wire to an inner wall of the inner barrel (31).

17. The hair care appliance of claim 15, wherein the complete machine (1000) further comprises a circuit board set (10) connected to the power supply, the heating set (20) and the temperature fuse (42) being connected to the power supply via the circuit board set (10);

the circuit board group (10) comprises a circuit board frame (11) and a circuit board (12) arranged on the circuit board frame (11); circuit grillage (11) with urceolus (32) deviate from the one end sealing connection of air outlet (1003), circuit grillage (11) be constructed with second wire hole (111) of first wire hole (312) intercommunication.

18. A hair care appliance as claimed in claim 17, characterized in that the circuit board (12) is arranged on the side of the line board carrier (11) facing away from the supply air duct (1001), and a wire plug (112) is arranged at the second wire running hole (111), the first wire (611) and/or the second wire being connected to the circuit board (12) via the wire plug (112).

19. The hair care device of claim 17, characterized in that the complete machine (1000) further comprises a complete machine housing (100) covering the outer cylinder (32) and the circuit board group (10), a first gap (101) is formed between the complete machine housing (100) and the outer cylinder (32), and the width of the first gap (101) along the radial direction of the outer cylinder (32) is between 0.5mm and 2 mm.

20. The hair care appliance of claim 13, wherein the complete machine (1000) further comprises an ion assembly (50) mounted within the routing cavity (301); the ion assembly (50) has a holder (51) for connection to the inner cylinder (31), the holder (51) being configured with a routing groove (512) for routing the wires (61).

21. The hair care device of claim 1, wherein the complete machine (1000) further comprises a temperature detecting member (70) disposed in the heating chamber (302) and connected to the power supply;

the temperature detection piece (70) is used for collecting a third temperature on the peripheral side of the temperature detection piece (70) in the heating cavity (302), and feeding the third temperature back to the whole machine controller, and the whole machine controller controls the third temperature to be constant.