CN201303688Y

CN201303688Y - Hair dryer

Info

Publication number: CN201303688Y
Application number: CNU2008201692692U
Authority: CN
Inventors: 应平祥
Original assignee: SHANGHAI SUPERMAN ELECTRIC CO Ltd
Current assignee: SHANGHAI SUPERMAN ELECTRIC CO Ltd
Priority date: 2008-11-28
Filing date: 2008-11-28
Publication date: 2009-09-09
Anticipated expiration: 2018-11-28

Abstract

The utility model discloses an electric hot air device, particularly a hair dryer, and aims to solve the problems that a hair dryer with small size and high power is difficult to make with the prior machine core structure. The structure of the hair dryer of the utility model is as follows: the heating element of the hair dryer is made by winding heating wires; the cross section of the heating element is elliptic coil spring-shaped; the heating element is wound at the outer edge of a bracket; and the major axis direction of the cross section of the heating element points to the internal of the machine core which is formed by winding. As the heating element with an elliptic coil spring-shaped cross section is formed by winding the heating wires, the power of the hair dryer can be adjusted by changing the ratio of the major axis and the short axis of the ellipse of the cross section of the heating element without being limited by the space of the wind hole; as the power increases and the major axis of the ellipse of the cross section of the coil spring-shaped heating element lengthens, the heat dissipation of the machine core is evener, the temperature deviation of the wind hole is smaller, and the temperature distribution of the wind hole port of the hair dryer is evener. Therefore, the utility model reduces the conditions that the heating wires are deformed because of uneven heating, and prolongs the service life of the hair dryer.

Description

Hair dryer

Technical field

The utility model relates to a kind of electric heating wind apparatus, especially a kind of cassette mechanism structure is improved to adapt to high-power and to make the movement uniform hair dryer that dispels the heat.

Background technology

At present, typical hair dryer comprises shell, fan, the drive fan motor rotating of similar tubular and the movement that is used to generate heat; Described movement has two kinds in the prior art:

First kind is that the straight line heating wire is broken into the broken line string.Its advantage is that movement wind area in air duct is wide, radiating state good; Its shortcoming is, owing to adopt the broken line heating wire, has limited the length of heating wire to a great extent, the cost height that gives a discount simultaneously, and yields is low, can only be applicable to low power hair dryer.

Second kind is that heating wire is processed into circular straight spring shape, around the outer of support.The advantage of this structure is because heating wire is processed into circular straight shape spring shape, can increase the length of heating wire, effectively increases the power of hair dryer.The shortcoming of this structure is the increase along with power, is subjected to the wind-tunnel spatial constraints, and the diameter of the spring shape that heating wire is made is limited, has limited the length of heating wire, is difficult to realize on the small size hair dryer powerful design; And, because heating wire around the outer of support, is unfavorable for heat radiation.

The utility model content

The technical assignment of the technical problems to be solved in the utility model and proposition is to overcome the defective that existing cassette mechanism structure is not suitable for making small size, large power, electrically blowing, provides a kind of movement has been made the improved new hair dryer of structure.For this reason, the utility model is by the following technical solutions:

Hair dryer, it comprises the shell with approximate tubular wind-tunnel and is arranged on fan in the described wind-tunnel, is used to the movement that drives the fan motor rotating, be used to generate heat, described movement comprises support and the heater on this support, it is characterized in that: described heater is oval-shaped coil spring shape for turning to cross section with heating wire, this heater is around the outer rim of described support, and the long axis direction of this heater cross section points to the inside of the movement that turns to.

The beneficial effects of the utility model are:

1, because heater is oval-shaped coil spring shape for turning to cross section with heating wire, can adjust the power of hair dryer by the ratio that changes coil spring shape heater cross section transverse and minor axis, be not subjected to the restriction in wind-tunnel space.

2, along with the increase of power, the lengthening of coil spring shape heater cross section transverse makes the movement heat radiation more even, temperature deviation is littler during wind-tunnel, make the Temperature Distribution of hair dryer wind-tunnel mouth more even, thereby reduced heating wire owing to the irregular state that is out of shape of heat, prolonged the service life of hair dryer.

Description of drawings

Fig. 1 is the sectional structure schematic diagram of an embodiment of the present utility model.

Fig. 2 forms axial schematic diagram (omitting the support that constitutes movement among the figure) behind the movement for the coil spring shape heater.

Fig. 3 is the shape of cross section schematic diagram of the coil spring shape heater that turned to by heating wire.

Fig. 4 forms schematic perspective view (omitting the support that constitutes movement among the figure) behind the movement for the coil spring shape heater.

Fig. 5 is positioned at the axial schematic diagram of shell for movement of the present utility model.

Fig. 6 is the sectional structure schematic diagram along its axis direction that movement of the present utility model and motor, fan fit together.

Fig. 7 is the cutaway view along its axis of the utility model support.

Among the figure: 1-movement, 2-shell, 3-motor, 4-fan, 5-support, 6-heating wire, 7-groove, 8-handle, 9-switch, 10-air outlet plate washer, 11-heater, the long axis direction of 1-1-heater 11 cross sections, the short-axis direction of s-s-heater 11 cross sections.

The specific embodiment

The hair dryer of an embodiment of the present utility model is now described according to Figure of description.Fig. 1 shows the structure according to the hair dryer of this embodiment, and it comprises: have the shell 2 of tubular wind-tunnel, fan 4 and be used to drive the motor 3 of fan 4, and the movement 1 that is used to generate heat.Movement 1 is supported on air outlet plate washer 10 inboards, and switch 9 is located on the handle 8, and process switch 9 starter motors 3 make fan 4 rotations and produce air-flow, and the heat that movement 1 produces is outside from air outlet plate washer 10 flow directions through the wind-tunnel of shell 2.

More detailed, direct or the indirect structure of having expressed movement 1 among Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, it comprises support 5 and the heater 11 (referring to Fig. 2,4) of shape on this support 5 in the shape of a spiral, and support 5 prevents fixedly that by the gear muscle in the wind-tunnel of shell 2 whole movement 1 from rotating or moving.Heater 11 is oval-shaped coil spring shape (shape of cross section is referring to Fig. 3) for turning to cross section with heating wire 6, this heater 11 is around the outer rim of support 5, and the long axis direction 1-1 of these heater 11 cross sections points to the inside of the movement 1 that turns to, and best implementation is the center that the long axis direction 1-1 of heater cross section points to the movement 1 that turns to.The main body of heater 11 is positioned at the inboard (referring to Fig. 5,6) of itself and support 5 contacts site, can occupy same space with support thus, makes whole movement 1 occupy the space of wind-tunnel in the less shell, is convenient to design the hair dryer of small-volume large-power.And being designed to its cross section, support 5 is radial, it shown in the figure " ten " word shape (referring to Fig. 5), offer the groove 7 (referring to Fig. 7) that is used for the heating wire location on the support 5, therefore with heater 11 on support 5 time, just after heating wire 6 being turned to spring, be hooked on (referring to Fig. 6) on the support 5, conserve space, the moving of all directions that can stop simultaneously heating wire 6, and be out of shape cause loosening after being used for supporting the electrothermal wire heating, all kinds of grooves 7 of support 5 can be finished by punching process, heating wire 6 by spiral filament forming machine directly on support 5, also can be by manual coiling.The cross section of heating wire 6 is circle, ellipse, triangle or polygon.Heater 11 is identical oval-shaped coil spring shape for turning to cross section with heating wire at length direction; Perhaps heater is the oval-shaped coil spring shape of size interval for turning to cross section with heating wire at length direction, and at this moment, the cross section of the size interval of heater can be arranged in order at length direction, also can lack of alignment.According to the size of the wind-tunnel of hair dryer watt level and shell 2, can suitably adjust the ratio of long axis of ellipse 1-1 and minor axis s-s.

The shape of cross section of the coil spring shape heater that turns to by heating wire shown in Figure 3, it is manufactured with two kinds: method 1 is directly to rotate coiling by machinery to form; Method 2 is by behind the coiled coil component spring, is processed into ellipse with the method for suppressing.More than two kinds of processing methods merits and demerits is all arranged: the advantage of method 1 is to finish by adjusting a coiling of central layer, and technology is simple; Its shortcoming is the difference owing to product specification, and the difference of oval long and short axis scale needs a lot of plugs to regulate, and operating efficiency reduces.The advantage of method 2 is after can unifying circular wire with the heating wire coiled, to carry out press forming according to the difference of transverse and minor axis; Its shortcoming is that arts demand just can be finished by several procedures, the technology more complicated.

Although by example with reference to the accompanying drawings the utility model is fully described, it should be understood that those skilled in the art can carry out various variations and remodeling; Therefore, every under the situation that does not break away from scope of the present utility model, the various variations and the remodeling that are carried out all are interpreted as being included in the scope of the present utility model.

Claims

1, hair dryer, it comprises the shell (2) with tubular wind-tunnel and is arranged on the interior fan (4) of described wind-tunnel, be used to drive fan (4) motor rotating (3), the movement that is used to generate heat (1), described movement (1) comprises support (5) and the heater (11) on this support (5), it is characterized in that: described heater (11) is oval-shaped coil spring shape for turning to cross section with heating wire (6), this heater (11) is around the outer rim of described support (5), and the long axis direction of this heater cross section (1-1) points to the inside of the movement (1) that turns to.

2, hair dryer according to claim 1 is characterized in that the long axis direction (1-1) of described heater (11) cross section points to the center of the movement (1) that turns to.

3, hair dryer according to claim 1 and 2, the main body that it is characterized in that described heater (11) are positioned at the inboard of itself and described support (5) contact site.

4, hair dryer according to claim 1 is characterized in that the cross section of described support (5) is radial.

5,, it is characterized in that offering on the described support (5) groove (7) that is used for described heating wire location according to claim 1 or 4 described hair dryers.

6, hair dryer according to claim 1 is characterized in that the cross section of described heating wire (6) is circular, ellipse, triangle or polygon.

7, hair dryer according to claim 1 is characterized in that described heater (11) is identical oval-shaped coil spring shape for turning to cross section with heating wire (6) at length direction.

8, hair dryer according to claim 1 is characterized in that described heater (11) is the oval-shaped coil spring shape of size interval at length direction for turning to cross section with heating wire (6).

9, hair dryer according to claim 8 is characterized in that the cross section of the size interval of described heater (11) is arranged in order at length direction.

10, hair dryer according to claim 1, it is characterized in that described heater (11) in the shape of a spiral shape on described support.