KR200417077Y1 - Heat generating mechanism for hair dryer - Google Patents

Abstract

Provided is a heating device for a hair dryer which can quickly detect a temperature during operation of a ceramic block heating element, prevents overheating of the hair dryer in advance, and extends the service life thereof.

A honeycomb with a motor and a fan embedded in the casing, a plurality of pores penetrated back and forth, conductive leads and a heat shield ring at each of the front and rear ends, and a main passage formed in the central portion through the major axis. The ceramic block of the shape was used as a heat generating element, and inside the main passage, a temperature sensor switch and an overheat protection fuse were inserted in the long axis direction to provide an overheating device for a hair dryer that detects overheating of the ceramic block and quickly cuts off the power supply.

Description

Heat generating mechanism for hair dryer

1 is a cross-sectional view of a heating device of a hair dryer according to the present invention.

Figure 2 is an overview of the heat generating device of the hair dryer according to the present invention.

3 is a three-dimensional exploded view of a heating device of the hair dryer according to the present invention.

Figure 4 is a front view of the heat generating device of the hair dryer according to the present invention.

<Description of the code>

1: casing

2: fan

3: motor

4: heating device

40: rod

410: edge of the bar

41: first ceramic block

42: second ceramic block

411, 421: honeycomb

412, 422: Main passage

43, 44: conductive lead

51, 52: heat shield ring

53: felling ring

531: connection rim

532: contacts

511: hook fixing

61: temperature sensor switch

62: overtemperature protection fuse

63: hook

71: 1 L type bracket

72: 2 L type bracket

The present invention relates to a heat generating device for a hair dryer using a ceramic block as a heat generating element, and the ceramic block has a honeycomb shape having a plurality of pores, and along the main passage inside the main passage penetrating in the longitudinal direction of the central portion thereof. The temperature sensor switch can be inserted to quickly detect the temperature of the ceramic block.

According to the recently announced hair dryer registered in Taiwan Utility Model No. M263023, the structure is combined with the left and right halves and the electric circuit control element, fan, motor, filter, motor in the casing where the air vents and the ventilation net are installed. The step-down element is housed. By operating an electric circuit control element to drive a motor and rotating the fan, air is introduced into the casing from the air absorption network, and exhausted out of the casing from the ventilation port. Each of the front and rear ends of the motor step-down element is provided with a ceramic block and an anion generator, and the front and rear ends of the ceramic block are covered with a conductive metal layer and a heat shielding layer. The ceramic block is fixed to the outside of the heat shield layer at both ends of the fixing mechanism. When the negative ion generator and both metal layers are activated, the negative ion group starts to blow from the tuyeres and keeps the user's hair moisture. Far infrared rays emitted from the ceramic block penetrate deeply into the user's skin to reach the inner tissue and promote blood movement.

It is a well-known technique to use a ceramic block as a heat generating element of a hair dryer. However, the ceramic block is easy to fall back and may burst completely when it is overheated. In addition, since the step-down element of a motor made of a conventional resistance wire is housed in a flat mica bag, the surface of the mica bag in contact with the high temperature resistance wire deteriorates and peels off over time, and the high temperature mica is decomposed. It produces difficult and irretrievable toxic particulates, which when inhaled into the lungs, are extremely detoxifying to the human body.

In view of the above circumstances, in order to improve the conventional drawbacks, the inventors of the present application have succeeded in the development of the present invention based on the results of a long time research based on the experience of working in the art for many years.

It is an object of the present invention to develop a hair dryer's heat generator that can quickly detect the temperature during operation of the ceramic block heating element, thereby preventing overheating of the hair dryer and extending its service life.

In order to achieve the above object, in the present invention, one motor and one fan are built together in the casing, a plurality of pores are formed through each other, and conductive leads and heat shield rings are installed at each of the front and rear ends. In the central part, a honeycomb-shaped ceramic block penetrating in the major axis direction is formed as a heat generating element, and inside the main path, there is provided a heat generating device for a hair dryer in which one temperature sensor / switch is inserted in the major axis direction.

Further, one overheat protection fuse is inserted in the major axis direction in the main passage in the center of the ceramic block.

In addition, the ceramic block was divided into first and second blocks, and the second block was used as the step-down element of the motor.

In addition, one or more first ceramic blocks used in the heating element may be installed.

Other features, advantages and operation of the heating device of the hair dryer according to the present invention will be described in the following embodiments with reference to the accompanying drawings.

See FIGS. 1 to 4. The casing 1 of the hair dryer according to the present invention includes a fan 2, a motor 3, and a heat generator 4. The heat generating device 4 includes a plurality of conductive leads 43 and 44 provided in the first ceramic block 41, the second ceramic block 42, and both blocks 41 and 42, and a plurality of the leads 43 and 44. It consists of the heat shield rings 51 and 52, and wraps the whole structure by the rod 40.

Each of the first and second ceramic blocks 41 and 42 is a honeycomb block through which a plurality of pores 411 and 421... Are formed, and each main portion has a main passage 412 penetrating in the major axis direction. And 422 are formed, and both main passages 412 and 422 communicate with each other, and a conductive ring 53 is interposed between the ceramic blocks 41 and 42. The conductive leads 43 and 44 are provided at outer ends of the first and second ceramic blocks 41 and 42, respectively, and the heat shield rings 51 and 52 are provided on opposite surfaces of the leads 43 and 44, respectively. Is fitted.

As shown in FIG. 3, the temperature sensor switch 61 and the overheat protection fuse 62 are inserted along the major axis in the main passages 412 and 422 of the first and second ceramic blocks 41 and 42. It is. The temperature sensor switch 61 and the overheat protection fuse 62 are connected to each other, and the other end of the temperature sensor switch 61 is provided with a hook 63 extending laterally on the heat shield ring 51. It is coupled to a large government 511. The other end of the fuse 62 is coupled to the first L-shaped bracket 71 in which one end thereof protrudes from the heat generating device and the other end is inserted into the heat generating device.

Similarly, the second L-shaped bracket 72 protrudes one end from the heat generating device, extends the other end into the heat generating device, and is coupled to the heat transfer ring 53 interposed between the ceramic blocks 41 and 42. have.

The conductive ring 53 is formed in an annular shape, and the connecting rim 531 is extended from the center portion thereof to be electrically connected to the second L-shaped bracket 72. One contact portion 532 is provided at the edge portion of the ring 53, and from this point, it is connected to the motor 3 by a conductive wire.

In order of the heat shield ring 51, the conductive lead 43, the first ceramic block 41, the conductive ring 53, the second ceramic block 42, the conductive lead 44, the heat shield ring 52 Each part is assembled and finally wrapped in a rod 40, screwed on the inside of the edge portion 410 of the rod 40, the outside is coupled to both L-shaped brackets (71, 72).

The heat generating device assembled in this way uses the first ceramic block 41 as a heat generating element, and uses the second ceramic block 42 as a step-down element. The motor 3 is also fixed to the edge portion 410 of the rod 40 by a coupling part.

One hair dryer is completed by combining the fan 2, the motor 3, and the heat generator 4. The temperature sensor switch 61 and the overheat protection fuse 62 inserted into the main passages 412 and 422 of the two ceramic blocks 41 and 42 communicated with each other quickly and highly sensitively change the temperature state of the ceramic blocks 41 and 42. It is to be detected.

Once the overheat state of the ceramic blocks 41 and 42 is detected, the temperature sensor switch 61 and the overheat protection fuse operate to cut off the power supply, and the ceramic blocks 41 and 42 are protected. Although both protection elements 61 and 62 are normally connected in series, you may abnormally connect one of them to the intermediate | middle tap of a power supply line.

The surfaces of the conductive leads 43 and 44 attached to or between the ceramic blocks 41 and 42 are formed in a wave shape so as to securely support the ceramic blocks 41 and 42 by using a cushioning action.

In practice, the number of installation of the ceramic blocks 41 and 42 can be appropriately adjusted in accordance with the power of the hair dryer according to the regulations of each country. That can be one or plural.

When the motor 3 is started, the ceramic blocks 41 and 42 are elastically biased to generate heat, and blow the wind containing far infrared rays to the user's hair by the fan 2.

The present invention is certainly not only creative in form, but also adds more functions than conventional products, and fully meets the requirements of the new and progressive legal utility model registration claim.

The foregoing detailed description is a specific description of the practical embodiments of the present invention. However, the embodiments do not limit the scope of the registered claims of the present invention, and the implementation of equivalent effects made without departing from the spirit of the present invention or All changes shall be included within the scope of the claims of the present invention.

The heat generator of the hair dryer according to the present invention includes at least two honeycomb-shaped ceramic blocks, one of which uses a heating element and the other as a step-down element of the motor. The temperature sensor / switch and overheat protection fuse inserted in the main passage penetrating the center of both blocks keep the ceramic block at the proper temperature, and once the overheat occurs, the power is cut off quickly. And its life is extended.

Claims (9)

In the heat generating device built into the hair dryer, a casing is built with one motor and one fan, a plurality of pores are formed through the front and rear, and conductive leads and heat shield rings are provided at each of the front and rear ends. And a honeycomb-shaped ceramic block having a main passage formed in the central portion thereof as a heat generating element, and one temperature sensor / switch inserted into the major passage in the major axis direction of the hair dryer. Heating device The method of claim 1, And one overheat protection fuse is further inserted in a long axis direction in a main passage of the central portion of the ceramic block. The method according to claim 1 or 2, And the temperature sensor switch and the overheat protection fuse are connected in series, or one of them is connected to an intermediate tap of a power supply line. The method of claim 1, The ceramic block includes a first block and a second block, and a conductive ring is interposed between both of the ceramic blocks. The method of claim 4, wherein And the second ceramic block is used as a step-down element of the motor. The method of claim 4, wherein A conductive ring interposed between the first and second ceramic blocks extends the connecting rim from its center portion and is connected to an L-shaped bracket outside the ceramic blocks. The method of claim 3, The other end of the temperature sensor switch connected to the overheat protection fuse is connected to and fixed to a heat shield ring fitted to the front end of the ceramic block. The method of claim 1, Heat generating device for a hair dryer, characterized in that one or more than one first ceramic block used in the heating element. The method of claim 1, A surface of the conductive lead attached to or between the ceramic blocks or at both ends thereof is formed in a wavy shape.

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