CN211323420U - Wiring structure of hair drier - Google Patents

Abstract

The utility model discloses a wiring structure of a hair drier, which comprises an electric insulator positioned inside the hair drier; a plurality of penetrating conductors which play a role of transition connection are arranged in the electric insulator; the cables at the two ends of the conductor in the blower are connected through the conductor. The cable is reasonably arranged in the hair drier, so that the ventilation area of the hair drier occupied by the cable line is reduced, more air can pass through the hair drier, and the efficiency is higher; the swinging of the cable in the blower is avoided, and the service life of the cable is prolonged.

Description

Wiring structure of hair drier

Technical Field

The utility model relates to a hair-dryer field, concretely relates to wiring structure of hair-dryer.

Background

The blower is composed of a group of electric heating wires and a high-speed small fan. When the fan is electrified, the heating wire can generate heat, and the air blown out by the fan passes through the heating wire and is changed into hot air. If only the small fan rotates and the heating wire is not hot, only wind but not heat is blown out. The wind that the hair-dryer blew belongs to the drier, if the time overlength of using, can cause the loss of moisture very easily, causes the thermal injury, falls to the secret formula of minimumly to the damage and is exactly: patting the hair dry with a towel, combing the hair gently with a hand, and then with a hair dryer.

An external cable penetrates into the hair drier to be connected with an internal control unit, a heating unit, a fan unit and the like, so that the hair drier has multiple and complex circuits, is disordered in wiring in the hair drier and inconvenient to assemble and disassemble, and can reduce the ventilation area in the hair drier so as to reduce the air volume of the hair drier; the air flow passes the surface of the cable line for a long time, causing the cable to swing inside the hair dryer, and also shortening the service life of the cable inside the hair dryer.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wiring structure of hair-dryer.

In order to achieve the above object, the utility model provides a following technical scheme: a wiring structure of a hair dryer includes an electric insulator located inside the hair dryer; a plurality of penetrating conductors which play a role of transition connection are arranged in the electric insulator; the cables at the two ends of the conductor in the blower are connected through the conductor.

Further, a first terminal end of the conductor extends out from an end of the electrical insulator that is upstream of the main airflow path; the second terminal end of the conductor extends out of the electrical insulator at an end thereof downstream of the main air flow path.

Further, the electrical insulator has a plate-like structure.

Further, an electrical insulator is located between the heat insulation means of the heater in the hair dryer and the inner wall of the hair dryer body.

Furthermore, the electric insulator is provided with a sealing surface which is attached and sealed with the inner wall of the blower.

Further, a key area is disposed on the electrical insulator.

The technical effects of the utility model are as follows: a plurality of power or signal wires are transmitted through the very thin circular wall, the smaller the wall thickness is, the more the air volume is passed through, and the smaller the diameter of the handle can be made, so that people can hold the handle conveniently. Make the cable in the handle not mixed and disorderly, the cable need not pass through inside the heater to avoid the cable to be heated up by the heater and shorten the life of cable, guarantee simultaneously that the inside amount of wind that passes through of heater is more. In addition, the heat can be isolated and not transferred to the handle, thereby avoiding hot air leakage and isolating the electric safety belt; the cable is reasonably arranged in the hair drier, so that the ventilation area of the hair drier occupied by the cable line is reduced, more air can pass through the hair drier, and the efficiency is higher; the swinging of the cable in the blower is avoided, and the service life of the cable is prolonged.

Drawings

FIG. 1 is a schematic structural view of an electrical insulator in an embodiment;

FIG. 2 is a cross-sectional view of an electrical insulator in an embodiment;

figure 3 is a cross-sectional view of an electrical insulator and heater in an embodiment of a hair dryer.

Reference numerals: 1. an electrical insulator; 2. a sealing surface; 3. a conductor; 4. a key area; 5. a ceramic thermoelectric insulator; 6. a heater; 7. a blower body; 8. an insulating material.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, a wiring structure for a hair dryer includes an electrical insulator 1 located inside the hair dryer; a plurality of penetrating conductors 3 which play a role of transition connection are arranged in the electric insulator 1; the cables in the hairdryer at both ends of the conductor 3 are connected by the conductor 3.

The first terminal of conductor 3 passes out of the end of insulator 1 upstream of the main gas flow path; the second terminal end of the conductor 3 passes out of the end of the electrical insulator 1 downstream of the main air flow path.

The electrical insulator 1 is of plate-like construction. The electrical insulator 1 is located between the insulation of the heater 6 in the hair dryer and the inner wall of the hair dryer body 7. The electric insulator 1 is provided with a sealing surface 2 which is attached and sealed with the inner wall of the blower. The electric insulator 1 is provided with a key area 4, and the buttons of the key area 4 extend out of the blower.

A plurality of power or signal wires are transmitted through the very thin circular wall, the smaller the wall thickness is, the more the air volume is passed through, and the smaller the diameter of the handle can be made, so that people can hold the handle conveniently. Make the cable in the handle not mixed and disorderly, the cable need not pass through inside the heater to avoid the cable to be heated by heater 6 and heat up and shorten the life of cable, guarantee simultaneously that the inside amount of wind that passes through of heater 6 is more. In addition, can keep apart the heat and can not transmit the handle, avoid hot-blast leakage, keep apart the electric safety belt.

The air blower comprises a handle and an air duct, wherein a main air flow inlet is formed in the handle, an upstream main air flow channel communicated with the main air flow inlet is formed in the handle, a fan unit used for enabling outside air to be sucked from the main air flow inlet to form main air flow and a heater 6 used for heating the main air flow are arranged in the upstream main air flow channel, and the air duct is provided with a downstream main air flow channel connected with the outlet end of the upstream main air flow channel and a main air flow outlet communicated with the downstream main air flow channel.

Compared with the existing blower in which the heater 6 is arranged at the head, the heater 6 of the product is arranged in the handle, so that the length of the handle is increased, the length of the handle held by people is longer, and the hand is not easy to block the main airflow inlet at the bottom; meanwhile, the gravity center of the heater 6 is reduced, so that the gravity center of the hair drier is concentrated at the handle, the hair drier is held more stably, the body is not easy to feel tired after the hair drier is used for a long time, and the hair drier is more comfortable to use.

The fan unit is located between the heater 6 and the main air flow inlet.

To ensure that the primary air flow is sufficiently heated, a heater 6 extends in the axial direction of the handle. Preferably, the heater 6 has a length of 1/3 to 2/3 times the length of the handle.

The fan unit comprises a first cover body penetrating through the fan unit; the outer side wall of the first cover body is hermetically connected with the inner side wall of the handle; the interior of the first shroud forms part of the upstream main airflow path.

The air duct comprises an annular area formed by a first annular wall and a second annular wall in a surrounding mode; the downstream main gas flow path is located in the annular region; one end of the downstream main air flow channel is connected with the outlet end of the upstream main air flow channel, and the other end of the downstream main air flow channel is connected with the main air flow outlet; the front end of the annular area is provided with an annular main air outlet; the rear end of the annular area is provided with an annular sealing cover; the first annular wall is positioned inside the second annular wall; a through hollow channel is formed inside the first annular wall; a first secondary airflow channel is formed in the hollow channel from the rear end to the front end.

The air inlet end from the main airflow inlet to the heater 6 is a cold air area; the air outlet end of the heater 6 to the main air outlet is a hot air area; the control space is isolated from the hot air area; a control unit is arranged in the control space. The control unit is prevented from being damaged after hot air flow enters the control space.

The control space comprises a main board area and a control area; the main board area is communicated with the control area.

The control area is arranged on the outer side of the handle, and the control area is isolated from the hot air area. An operation button is arranged in the control area; the operating button part extends out of the control area, so that people can conveniently operate and control the operating button.

The main board area is arranged in the annular area; a partition plate for separating the main plate area and the hot air area is arranged in the annular area; the inner side of the partition plate is hermetically connected with the outer side of the first annular wall; the outer side of the partition plate is hermetically connected with the inner side of the second annular wall. The division board is used for avoiding hot-blast entering mainboard district to damage the circuit board to the life of extension circuit board.

An airflow guide structure is arranged on one side of the partition plate, which is positioned in the hot air area; the airflow guide structure comprises a first annular guide surface and a second annular guide surface; the first annular guide surface is formed by axially extending on the partition plate; the partition plate between the first annular guide surface and the second annular wall forms a second annular guide surface; the air inlet end of the first annular guide surface is provided with a circumferential diffuser; an axial concentrator is arranged at the air outlet end of the second annular guide surface; the distance of the circumferential diffuser from the main air flow outlet is greater than the distance of the axial concentrator from the main air flow outlet.

The air quantity is firstly divided into two paths through the circumferential diffuser, then the air quantity is collected to the axial concentrator through the first annular guide surface and the second annular guide surface in the circumferential direction and blown out along the axial direction, so that 90-degree air guiding can be realized, the air guiding effect is good, the turbulent flow and the vortex of air are reduced, the noise is reduced, and the equipment works more quietly.

The second annular guide surface is an arc concave surface. The air guiding effect is better.

The first annular wall is provided with an air outlet hole for communicating the main plate area with the hollow channel; the second annular wall is provided with an air inlet hole for communicating the main plate area with the outside; the air inlet hole, the main board area, the air outlet hole and the front end of the hollow channel are sequentially connected to form a second auxiliary airflow channel.

Preferably, the air inlet holes are a plurality of dense small holes positioned at the left side and the right side of the second annular wall; the exhaust vent sets up 8 along first rampart circumference, and the amount of wind is more even.

The circumferential diffuser comprises a first tip extending radially outward on the air intake end of the first annular guide surface; the outer side surface of the first tip end is smoothly connected with the first annular guide surface.

The axial concentrator comprises a second tip extending axially on the air outlet end of the second annular guide surface; the outer side surface of the second tip end is smoothly connected with the second annular guide surface; the second tips are provided in one or more.

The handle and the air duct form a blower body 7; the blower body 7 is formed by splicing a first shell, a second shell and a third shell; the first shell comprises a main air outlet, a front section of the second annular wall and a first handle half shell which are integrally formed; the second shell comprises a front section of the first annular wall, a rear section of the second annular wall, a partition plate and a second handle half shell which are integrally formed; the third shell comprises a rear section of the first annular wall and a sealing cover which are integrally formed. Simple structure, few parts, low manufacturing cost and convenient disassembly and assembly. The main air flow outlet is preferably an annular outlet extending along the inner circumference of the first annular wall to form an annular air volume.

The partition plate is provided with a through pipe for communicating the downstream main gas flow channel with the main plate area; a negative ion emitter and a temperature sensor are arranged in the downstream main airflow channel; the negative ion emitter, the temperature sensor and the circuit in the handle are connected with the circuit board in the main board area after penetrating through the through pipe; the line is connected with the through pipe in a sealing way. The negative ion emitters are arranged in two numbers and are respectively arranged on two opposite sides of the downstream main airflow channel, so that the negative ions are mixed with the air more uniformly.

Preferably, the through pipe can be sealed by adopting the heat shrinkable pipe, and the sealing effect is good.

The temperature sensor is arranged in the mounting groove on the inner side surface of the first annular wall.

And the outer surface of the first annular wall and the inner surface of the second annular wall are provided with heat insulation sleeves. Avoid first rampart and second rampart to be heated and scald the human body or be heated and damage, avoid hot-blast calorific loss simultaneously, influence the result of use.

The bottom of the handle is provided with an expansion part which extends outwards in the radial direction, and an installation space which is axially communicated with the upstream main air flow channel and has a radial size larger than that of the handle is formed in the expansion part; detachably installs a apron in the installation space, and the apron has the face that is evagination arc form, and main air inlet is a plurality of air inlet apertures of densely covered on this face to in order to filter the impurity in the air, main air inlet's inboard can also set up the filter. In the structure, the radial size of the installation space is larger than the arc-shaped convex structures of the handle and the cover plate surface, so that the air inlet area and the air inlet amount can be increased. And the main air inlet is arranged at the bottom of the handle, so that the space for holding the handle is larger, and the use comfort is good.

A cable is arranged in the handle in a penetrating way; the inner wall of the handle is provided with a first branch line groove and a second branch line groove at two sides of the fan unit; a first wire on the cable is embedded into the first split groove; the second wire on the cable is embedded in the second drop slot.

A deconcentrator is fixedly arranged in the handle; the deconcentrator is provided with a wire inlet hole and a wire distributing pipe; the wire distributing pipe is provided with a wire outlet hole; the distributing pipes comprise a first distributing pipe and a second distributing pipe; the wire outlet holes comprise a first wire outlet hole and a second wire outlet hole; a first wire outlet hole aligned with the end part of the first wire distributing groove is formed in the first wire distributing pipe; and a second wire outlet hole aligned with the end part of the second branch groove is formed in the second branch pipe.

Specifically, the middle part of the cover plate is provided with a through hole for a cable to pass through; the via holes are aligned with the wire inlet holes of the wire dividers. The cable passes through the through hole and the wire inlet hole and then enters the deconcentrator. The cable is divided into a first wire and a second wire in the splitter; a first wire of the cable passes through the first branch pipe and penetrates out of the first wire outlet hole; and a second wire of the cable passes through the second branch pipe and penetrates out of the second wire outlet hole.

The deconcentrator is formed by splicing two symmetrical half shells; set up the screw hole on the casing of handle, set up the mounting hole that aligns with the screw hole matching on the deconcentrator to fix the deconcentrator in the handle casing through the screw, improve the stability of cable in the handle.

And a plurality of sealing sleeves for the corresponding first electric wire and the second electric wire to pass through are arranged in the first branch groove and the second branch groove. Four sealing sleeves are sleeved on the first wire and the second wire respectively, so that the situation that air passes through the first distributing groove and the second distributing groove is avoided, and the phenomenon that the air in the handle flows back to cause the hair drier to work normally is avoided.

The end part of the sealing sleeve is provided with a coaxial annular slot; the inner side surface of the slot is connected with the outer side surface of the sealing sleeve. Therefore, the air quantity passing through the end part of the sealing sleeve is guided into the groove, so that the air quantity passing through the outer side surface of the sealing sleeve is reduced, and the sealing effect is better.

The radial size of the outer wall end of the sealing sleeve is larger than that of the middle section of the outer wall, so that the production cost is reduced, and manual holding and dismounting are facilitated.

The radial dimension of the upstream main airflow channel in the handle from the main airflow inlet to the air inlet end of the fan unit decreases progressively; the radial dimension of the upstream main air flow path from the outlet end of the fan unit to the inlet end of the heater 6 increases gradually. The chimney-like main air flow channel increases the air flow.

The fan unit comprises a motor, a fan and a first cover body; the fan and the motor are positioned in the first cover body; the fan is close to the air inlet end of the fan unit, and the motor is close to the air outlet end of the fan unit; the main air inlet is positioned right below the air inlet end of the fan unit. The setting of the first cover body has reduced vibrations and the noise that the motor operation produced, makes simultaneously that the air that sucks in the handle at first all through first cover body inside, plays the cooling effect to the motor, the normal operating time of extension motor.

Preferably, the fan unit is arranged coaxially with the handle. And the middle part of the outer side surface of the air duct extends outwards along the radial direction to form a handle, and the radial dimension of the handle is smaller than that of the air duct.

The heater 6 comprises a heating frame, a heating wire, a heat insulation device and an overheating protection device; the heating wire, the heating frame and the overheating protection device are positioned in the heat insulation device; the outer side of the heat insulation device is connected with the inner wall of the handle; the heating wire is connected with the heating frame; the heating wire is positioned in the main air flow channel between the heat insulation device and the heating frame. The heat insulation device is arranged into two layers, so that the heat insulation effect is better. The heating wire is circumferentially wound on the heating frame and axially extends, so that the heating area is increased, and the heating effect of air is improved.

The heating frame comprises a plurality of heating plates which are circumferentially arranged, a structure which is outwardly divergent and axially extends is formed, the occupied space is small, and therefore more air can pass through the heating frame; a part of an upstream main air flow channel is formed between adjacent heating plates; the end parts of the plurality of heating plates are fixed together through matched divergent plastic connecting pieces; the outer side of the connecting piece is provided with an air guide surface for air flow to enter between the adjacent heating plates, so that more air flow passes through between the adjacent heating plates; two or more layers of heat generating plates, preferably mica plates, may be provided.

A wiring board extending along the upstream main air flow channel is arranged between the heater 6 and the inner wall of the handle in the upstream main air flow channel; the wiring board is provided with a wire inlet end connected with the wires of the cable, the fan unit and the heater 6 and a wire outlet end connected with the circuit board. Design like this makes the cable in the handle not mixed and disorderly, and the cable need not pass through inside heater 6 to avoid the cable to be heated by heater 6 and heat up and shorten the life of cable, guarantee simultaneously that the inside amount of wind that passes through of heater 6 is more.

The heat insulation device is arranged into two layers, and the heat insulation effect is good. The thermal insulation means comprises a ceramic thermoelectric insulator 5 and an insulating material 8.

The control unit comprises a circuit board and an operation button; the operation button is provided on the wiring board. Compact structure and no space occupation. The circuit board may also be disposed on the handle.

Air A around the bottom of the handle enters the interior of the handle through the main airflow inlet, and is blown out of the annular main airflow outlet after passing through the upstream and downstream main airflow channels to form annular air volume. The air A blown out from the main air flow outlet pushes the surrounding air to flow, and the air which is positioned outside the first annular wall and close to the main air flow outlet is gathered to the main air flow outlet and then is blown out axially. The outside air C enters the main board area through the air inlet hole, the air C cools the circuit board and then blows out the circuit board to the hollow channel from the air outlet hole, and finally blows out the circuit board from the front end of the hollow channel, the air A, the air B and the air C are overlapped, and the air output of the hair drier is increased by utilizing the air multiplication principle.

In conclusion, the utility model can be realized better.

Claims (6)

1. A wiring structure of a hair dryer is characterized by comprising an electric insulator positioned inside the hair dryer; a plurality of penetrating conductors which play a role of transition connection are arranged in the electric insulator; the cables at the two ends of the conductor in the blower are connected through the conductor.

2. A wiring structure for hair dryers as claimed in claim 1, wherein the first terminal end of the conductor extends out from an end of the electrical insulator located upstream of the main air flow path; the second terminal end of the conductor extends out of the electrical insulator at an end thereof downstream of the main air flow path.

3. The wiring structure of hair dryer according to claim 1, wherein said electric insulator is a plate-like structure.

4. Blower wiring structure according to claim 1, characterized in that an electrical insulator is located between the heat insulation means and the inner wall of the blower body in the blower.

5. A blower wiring structure according to claim 1, wherein the electrical insulator is provided with a sealing surface for sealing against an inner wall of the blower.

6. Blower wiring structure as claimed in claim 1, characterized in that a key area is provided on the electrical insulator.

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