CN211354208U

CN211354208U - PTC heating hair-dryer

Info

Publication number: CN211354208U
Application number: CN201922033812.7U
Authority: CN
Inventors: 刘清海
Original assignee: Xiamen Dide Electric Appliance Co ltd
Current assignee: Xiamen Dide Electric Appliance Co ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-08-28
Anticipated expiration: 2029-11-22

Abstract

The utility model discloses a PTC heating blower, relating to the technical field of blowers, which comprises a shell, a fixing piece and an air draft device, wherein the fixing piece is provided with a PTC heating module; the PTC heating module is characterized by comprising two groups of PTC ceramic heaters, each group of PTC ceramic heaters is provided with a heating body, a first heat dissipation plate and a second heat dissipation plate, the first heat dissipation plate and the second heat dissipation plate are respectively provided with a heat conduction end and a heat dissipation end, the heat conduction ends are attached to the surfaces of the two sides of the heating body, the heat dissipation ends are provided with heat dissipation fins, and the two sides of the heat dissipation end of the second heat dissipation plate are provided with a connecting column and a connecting groove; thus, through the design of the assembling post and the assembling groove of the two groups of PTC ceramic heaters, the two groups of PTC ceramic heaters can be oppositely and correspondingly assembled into a whole. The present invention utilizes PTC ceramic thermistor as the heating element of hair drier and heat sink as the heat sink, and has the advantages of stable working performance, fast temperature raising speed, no heat resistance, no electromagnetic wave, large heat transfer area, long service life, etc.

Description

PTC heating hair-dryer

Technical Field

The utility model relates to a hair-dryer technical field, in particular to PTC heating hair-dryer.

Background

Conventional hair dryers, such as those used for blowing hair, typically have a helical nichrome resistive coil wound around the hair dryer, which has the following disadvantages: 1. the nichrome wire is easily broken by heat or during oscillation, and thus cannot be used. 2. The hot air blown by the traditional nickel-chromium coil is easy to generate turbulence phenomenon due to the lack of a flow guiding device, and when the hair washed by water is dried and blown, the hair is easy to be disordered due to turbulence, so that the hair is not easy to be shaped. 3. The conventional electric heating wire can generate unpleasant metal odor after being electrified and heated to be sprayed out along with hot wind, so that the defect is particularly obvious for modern people to pursue elegant living taste except influencing human health.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a PTC heating hair drier which has the advantages of stable working performance, high temperature rising speed, no thermal resistance, no electromagnetic wave, large heat transfer area, long service life and the like.

The technical scheme adopted for achieving the purpose is as follows:

a PTC heating blower comprises a shell, a fixing piece and an air draft device, wherein the shell is provided with a handle, an air inlet and an air outlet, the handle is provided with a power supply controller, the fixing piece is arranged in the shell, the air draft device is arranged at the end, located at the air inlet, of the fixing piece, and a PTC heating module is arranged at the end, located at the air outlet, of the fixing piece; the PTC heating module consists of two groups of PTC ceramic heaters with the same structure, wherein each group of PTC ceramic heaters comprises a heating body, a first heat dissipation plate and a second heat dissipation plate, the first heat dissipation plate and the second heat dissipation plate are attached to the surfaces of the two sides of the heating body and respectively comprise a heat conduction end and a heat dissipation end, the heat conduction ends of the first heat dissipation plate and the second heat dissipation plate are respectively attached to the surfaces of the two sides of the heating body, and the heat dissipation ends of the first heat dissipation plate and the second heat dissipation plate are formed by a plurality of heat dissipation fins; the two sides of the heat dissipation end of the second heat dissipation plate are provided with an assembly post and an assembly groove, and the assembly post and the assembly groove are mutually corresponding to a convex part and a concave part; two groups of PTC ceramic heaters provided with the assembly posts and the assembly grooves are oppositely and correspondingly assembled to form the PTC heating module.

Preferably, the PTC heating modules are two groups of PTC ceramic heaters which are oppositely and correspondingly assembled to form one of a circle, an ellipse, a rectangle and a polygon.

Preferably, the heat generating body is constituted by at least one PTC ceramic heat generating component.

Preferably, the PTC ceramic heat generating element is one of circular, oval, square and polygonal.

Preferably, the outer edges of the heat dissipation fins of the first heat dissipation plate and the second heat dissipation plate are one of parallel shapes, circular arc shapes and irregular shapes.

Preferably, the shape of the radiating fins on the first radiating plate and the second radiating plate is one of a straight shape, a wavy shape, a curved arc shape, a sawtooth shape and an irregular shape.

The utility model provides a pair of PTC heating hair-dryer, its beneficial effect lies in: (1) the PTC ceramic heating element does not generate the phenomenon of 'red' on the surface of an electric heating tube heater, does not cause potential safety hazards such as scalding and fire disasters, and has good safety performance. (2) The PTC ceramic heating body uses the PTC ceramic thermistor, and the self thermal power output is mainly adjusted according to the change of the environmental temperature, so the PTC ceramic heating body can optimally control the electric energy consumption of the heater to be minimum, is an automatic constant-temperature and electricity-saving electric heater, and has the service life longer than other heaters. (3) The PTC ceramic heater is formed by sticking high-surface-area radiating fins on the surfaces of two sides of the PTC ceramic heating body, so that the PTC ceramic heater can greatly improve the utilization efficiency of electric energy. (4) The PTC heating module consisting of two groups of modularized PTC ceramic heaters has the advantages of small thermal resistance and high heat exchange efficiency. (5) Any two groups of modularized PTC ceramic heaters can be quickly assembled into a group of PTC heating modules, and the PTC ceramic heaters have the advantages of being easy to machine and assemble and saving manufacturing cost.

Drawings

FIG. 1 is a perspective view of a PTC heating module of a PTC heating blower of the present invention;

FIG. 2 is a schematic perspective exploded view of a PTC heating module of the PTC heating blower of the present invention;

FIG. 3 is a schematic cross-sectional view of a PTC heating module of the PTC heating blower of the present invention;

FIG. 4 is a schematic sectional view of the PTC heating module of the PTC heating blower of the present invention in a combined state;

fig. 5 is a schematic sectional view of the PTC heating blower according to the present invention in use.

In the figure: 10-a PTC heating module; 20-an air draft device; 30-a fixing member; 40-a housing; 41-a handle; 42-air inlet; 43-air outlet; 44-a power supply controller; 50-PTC ceramic heater; 51-a heating element; 511-PTC ceramic heating element; 52-first heat sink; 53-second heat sink; 521. 531-thermally conductive end; 522. 532-heat dissipation end; 533-group of connecting columns; 534-assembling slot.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 4, the PTC heating module of the present embodiment has a three-dimensional combination, exploded, and sectional structure of the respective components. In the drawing, the PTC heating module 10 is composed of two groups of PTC ceramic heaters 50 of the same structure, and the two groups of PTC ceramic heaters 50 are oppositely and correspondingly combined to form a circular tube shape. The PTC heating module 10 of the present invention is mainly used in a hair dryer, and since the air of the hair dryer is usually in a circular tube shape, the shape of the PTC heating module 10 of the present invention is designed to be in a circular tube shape, but the shape of the PTC heating module 10 of the present invention can be set to other shapes according to the requirement, and is not limited to the circular tube shape in the drawings, such as a square shape, an oval shape, a polygon shape, or other irregular shapes.

Each group of PTC ceramic heaters 50 includes a heating element 51 composed of four sheet-like PTC ceramic heating elements 511, and a first heat dissipation plate 52 and a second heat dissipation plate 53 attached to both side surfaces of the heating element 51.

In the embodiment, the PTC ceramic heating element 511 is composed of four sheet-shaped PTC ceramic thermistors, but the number, shape, proportion and arrangement of the elements in the actual implementation of the present invention can be selected according to the requirement, and not only the four PTC ceramic heating elements 511 in the drawings are limited, but also the shape of each sheet-shaped PTC ceramic heating element 511 can be selected according to the requirement, and other shapes such as square, circle, ellipse, polygon or other irregular shapes do not hinder the implementation of the present invention.

In the present embodiment, the first heat sink 52 and the second heat sink 53 respectively include heat conducting ends 521 and 531 and heat dissipating ends 522 and 532; the heat conduction 521 and 531 ends of the first heat dissipation plate 52 and the second heat dissipation plate 53 are respectively attached to the two side surfaces of the heating element 51, and the heat dissipation ends 522 and 532 of the first heat dissipation plate 52 and the second heat dissipation plate 53 are composed of a plurality of heat dissipation fins; the second heat sink 53 has a set of posts 533 and a set of grooves 534 on both sides of the heat sink end, the set of posts 533 and the set of grooves 534 are convex and concave; thus, two groups of PTC ceramic heaters 5 can be oppositely and correspondingly assembled to form the PTC heating module 10 through two groups of PTC ceramic heaters 50 having the assembling posts 533 and the assembling grooves 534.

In the present embodiment, the outer edges of the plurality of heat dissipation fins on the first heat dissipation plate 52 are arranged in an arc shape, and the outer edges of the plurality of heat dissipation fins on the second heat dissipation plate 53 are arranged in a parallel shape, but the arrangement shape in actual implementation can be selected to be other shapes according to requirements, and the arrangement manner in the drawings is not limited, for example, two heat dissipation fins are arranged in an arc shape (making the PTC ceramic heater 50 form a circle or an ellipse), one arc is arranged in parallel with another arc (making the PTC ceramic heater 50 form a semicircle or a semiellipse), or two heat dissipation fins are arranged in parallel (making the PTC ceramic heater 50 form a square or a rectangle), which does not hinder the implementation of the present invention.

In the present embodiment, the shape of each of the heat dissipation fins on the first heat dissipation plate 52 and the second heat dissipation plate 53 is a straight shape, but the actual implementation is not limited to the straight arrangement in the drawings, such as a wave shape, a curved arc shape, a sawtooth shape, and an irregular shape, and the implementation of the present invention is not hindered.

As shown in fig. 5, a sectional structure of the PTC heating module assembled in the blower in a use state is disclosed. In the illustration of the present embodiment, the present invention provides a PTC heating blower, which comprises a housing 40, a fixing member 30, an air extracting device 20 and a PTC heating module 10; the shell 40 is provided with a handle 41, an air inlet 42, an air outlet 43 and a power controller 44, the fixing piece 30 is assembled inside the shell 40, the fixing piece 30 is formed in a cross shape by two mica sheets, one end of the fixing piece is assembled with the air draft device 20, the other end of the fixing piece is assembled with the PTC heating module 10, the air draft device 20 is positioned at the air inlet 42 of the shell 40, the PTC heating module 10 is positioned at the air outlet 43 of the shell 40, when the power controller 44 is started, hot air with a set temperature can be sent out by the hair dryer through the PTC heating module 10, and meanwhile, because the surface of the PTC heating module 10 does not generate a red phenomenon, the danger of scalding and fire hazards can not be caused, and the safety; the PTC heating module 10 can be formed by quickly assembling any two groups of modular PTC ceramic heaters 50 into an integral PTC heating module 10, which has the advantages of easy processing and assembly and low manufacturing cost.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. A PTC heating blower comprises a shell, a fixing piece and an air draft device, wherein the shell is provided with a handle, an air inlet and an air outlet, the handle is provided with a power supply controller, the fixing piece is arranged in the shell, the air draft device is arranged at the end, located at the air inlet, of the fixing piece, and a PTC heating module is arranged at the end, located at the air outlet, of the fixing piece; the PTC heating module is characterized by comprising two groups of PTC ceramic heaters with the same structure, wherein each group of PTC ceramic heaters comprises a heating body, a first heat dissipation plate and a second heat dissipation plate, the first heat dissipation plate and the second heat dissipation plate are attached to the surfaces of the two sides of the heating body and respectively comprise a heat conduction end and a heat dissipation end, the heat conduction ends of the first heat dissipation plate and the second heat dissipation plate are respectively attached to the surfaces of the two sides of the heating body, and the heat dissipation ends of the first heat dissipation plate and the second heat dissipation plate are formed by a plurality of heat dissipation fins; the two sides of the heat dissipation end of the second heat dissipation plate are provided with an assembly post and an assembly groove, and the assembly post and the assembly groove are mutually corresponding to a convex part and a concave part; two groups of PTC ceramic heaters provided with the assembly posts and the assembly grooves are oppositely and correspondingly assembled to form the PTC heating module.

2. A PTC heated hair dryer as claimed in claim 1, wherein: the PTC heating module is formed by oppositely and correspondingly assembling two groups of PTC ceramic heaters into one of a circle, an ellipse, a rectangle and a polygon.

3. A PTC heated hair dryer as claimed in claim 1, wherein: the heating body is composed of at least one PTC ceramic heating component.

4. A PTC heated hair dryer according to claim 3, wherein: the PTC ceramic heating component is one of a circle, an ellipse, a square and a polygon.

5. A PTC heated hair dryer as claimed in claim 1, wherein: the outer edges of the heat dissipation fins of the first heat dissipation plate and the second heat dissipation plate are in one of a parallel shape, an arc shape and an irregular shape.

6. A PTC heated hair dryer as claimed in claim 1, wherein: the shape of the radiating fins on the first radiating plate and the second radiating plate is one of a straight shape, a wave shape, a bent arc shape, a sawtooth shape and an irregular shape.