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Low-radiation electric hair drier

A hair dryer and conductive layer technology, applied in clothing, hairdressing equipment, hair drying devices, etc., can solve problems such as user health effects, excessive electromagnetic radiation, and injury to pregnant women, to improve structural adaptability, reduce electromagnetic radiation, reduce effect of influence

Pending Publication Date: 2020-08-21
LESHOW ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Excessive electromagnetic radiation does not meet the EMC standard on the one hand, and on the other hand, it will have a subtle impact on the health of users, especially for pregnant women.

Method used

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  • Low-radiation electric hair drier
  • Low-radiation electric hair drier
  • Low-radiation electric hair drier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as Figure 1 to 5 As shown, a low-radiation hair dryer includes a housing 1, a handle assembly connected to the housing 1, an air inlet 3, an air outlet 4, a motor 7 for sucking air from the air inlet 3 into the hair dryer, and A heating unit (not shown in the figure) that heats the air flow, wherein the electric hair dryer further includes an EMC shielding structure, and the EMC shielding structure includes a circuit board 6 that controls the operation of the electric hair dryer and a conductive circuit electrically connected to the circuit board 6 Layer 5, the motor 7 is electrically connected to the circuit board 6, and the circuit board 6, the conductive layer 5, and the motor 7 form a closed loop circuit. EMC is electromagnetic compatibility, which means that the equipment or system can work normally in its electromagnetic environment and does not constitute the ability to withstand electromagnetic disturbance to anything in the environment. By making the circ...

Embodiment 2

[0054] The difference between this embodiment and the first embodiment is as follows: Image 6 As shown, the motor 7 includes a metal casing 101, the conductive layer 5 is the metal casing 101, and the metal casing 101 is provided with a ground terminal 11, and the ground terminal 11 is electrically connected to the circuit board 6. The electromagnetic radiation signal of the motor 7 is transmitted to the circuit board 6 through the metal casing 101, thereby achieving the purpose of absorbing electromagnetic radiation. The electrical connection between the ground terminal 11 and the circuit board 6 can be through the connection terminal 12, or through riveting, welding, or the like.

[0055] In this example, the EMC shielding structure further includes a connection terminal 12, and the connection terminal 12 is connected to the ground terminal 11. The structure of the connection terminal 12 is simple and easy to implement. The wall thickness of the connection terminal 12 is small...

Embodiment 3

[0059] The difference between this embodiment and the second or third embodiment is that the solution in this example is a combination of the solution in the first embodiment and the second embodiment.

[0060] In this example, the motor is arranged in the handle assembly 2, the motor 7 includes a magnet, a bearing assembly, fan blades 8 and a shaft; the stator assembly 20 includes a stator core and a spool; the motor 7 also includes a bracket, the bracket has The first cylinder 13 and the second cylinder 14, the first cylinder 13 and the second cylinder 14 are connected by connecting blades 15; the first cylinder 13 defines a through hole for supporting the rotor assembly 21; the second cylinder 14 A accommodating space is defined for accommodating the fan blade 8. The circuit board 6 is located in the housing 1, and the power cord of the motor 7 extends from the handle assembly 2 to the housing 1. The handle assembly 2 includes an inner handle 201 and an outer handle 202 sleev...

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PUM

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Abstract

The invention relates to the field of household appliances, aims to solve the problem of electromagnetic radiation of the electric hair drier, and relates to a low-radiation electric hair drier. The low-radiation electric hair drier comprises a shell, a handle assembly connected with the shell, an air inlet, an air outlet, a motor used for sucking air flow into the electric hair drier from the airinlet, and a heating unit used for heating the air flow. The electric hair drier further comprises an EMC shielding structure, the EMC shielding structure comprises a circuit board controlling the electric hair drier to work and a conducting layer electrically connected with the circuit board, the motor is electrically connected with the circuit board, and the circuit board, the conducting layerand the motor form a closed loop circuit. And electromagnetic radiation generated by the motor in the working process is reduced.

Description

Technical field [0001] The invention relates to the field of household appliances, in particular to a low-radiation hair dryer. Background technique [0002] The hair dryer generally includes a shell assembly and a handle assembly connected with the shell assembly, and an electrode used to suck airflow into the hair dryer, so that the hair dryer can be used to dry or style the hair. The hair dryer generates electromagnetic waves when it works. Radiation, the size of electromagnetic radiation is related to the power of the motor. The greater the power of the motor, the greater the electromagnetic radiation. In particular, in order to meet the needs of users for large air volume and high wind piezoelectric blowing, high-power motors are required. Excessive electromagnetic radiation does not meet the EMC standards on the one hand, and on the other hand, it has a subtle impact on the health of users, especially to pregnant women. Summary of the invention [0003] In order to solve th...

Claims

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Application Information

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IPC IPC(8): A45D20/10A45D20/12
CPCA45D20/10A45D20/12
Inventor 喻金明叶志文肖林张敏
Owner LESHOW ELECTRONICS TECH CO LTD
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