CN212465233U - Fan and hairdryer - Google Patents

Abstract

The application discloses fan and hairdryer, this fan includes: the inner part of the air duct is arranged along the axial direction of the air duct in a hollow mode so as to form a hollow cavity penetrating through the air duct, and the hollow cavity is an air duct of the air duct; the silicon controlled rectifier is detachably arranged on the side wall of the air duct; the lateral wall of the air duct is provided with an opening, and the opening is configured to be used for arranging the silicon controlled rectifier, so that the air flow in the air duct flows through the silicon controlled rectifier, and the temperature of the silicon controlled rectifier is further reduced. Through the mode, the silicon controlled rectifier's effective cooling can be realized to this application, has simple structure, advantage that the radiating effect is good.

Description

Fan and hairdryer

Technical Field

The application relates to the technical field of household appliances, in particular to a fan and an electric hair drier.

Background

With the improvement of living standard of people, the electric hair drier is widely used and is a common hairdressing tool. The electric hair drier is internally provided with an electric control element for controlling the electric hair drier to work, the silicon controlled rectifier is a more core element in the electric control element, and the silicon controlled rectifier can generate a large amount of heat in the working process of the electric hair drier. At present, most of the silicon controlled rectifiers blown by wind in the market are integrated on a circuit board positioned in the handle, the installation process is complex, the adopted heat dissipation mode is realized by increasing the area of the heat dissipation fins of the silicon controlled rectifiers, and the heat dissipation effect is poor. Therefore, there is a need to develop a blower and a hair dryer.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists in the above-mentioned technique, this application provides a fan and hairdryer, can improve the radiating effect to the silicon controlled rectifier.

In order to solve the technical problem, the technical scheme adopted by the application is as follows:

a blower, comprising: the air duct is internally and hollow arranged along the axial direction of the air duct so as to form a hollow cavity penetrating through the air duct, and the hollow cavity is an air duct of the air duct; the silicon controlled rectifier is detachably arranged on the side wall of the air duct; the side wall of the air duct is provided with an opening, and the opening is used for containing the controllable silicon, so that the airflow in the air duct flows through the controllable silicon, and the temperature of the controllable silicon is reduced.

Preferably, the controllable silicon is provided with a heat dissipation surface, and the heat dissipation surface is arranged at the opening.

Preferably, the outer side wall of the air duct is fixedly provided with a surrounding rib, and the surrounding rib is arranged along the edge of the opening to form a preset installation area for installing the silicon controlled rectifier.

Preferably, a handle is arranged below the air duct, and an electric control plate connected with the controlled silicon is arranged in the handle; the opening is close to the handle, so that the controllable silicon is close to the electric control board.

Preferably, the method further comprises the following steps: the air duct comprises a shell and an inner structure containing the air duct; the shell is provided with openings at two opposite ends and is hollow in the axial direction of the shell to form an accommodating cavity, and the shell is sleeved on the periphery of the internal structure; one end part of the internal structure is connected with the inner wall of the shell through a rotary buckle, and the other opposite end part of the internal structure is connected with the inner wall of the shell through a buckle.

Preferably, the shell is provided with an air inlet and an air outlet, and a flange which grows inwards along the radial direction of the air outlet is formed at the air outlet of the shell so as to form a limiting clamping shoulder; one end part of the inner structure is abutted against the flange and is connected with the inner wall of the shell through a rotary buckle.

Preferably, in the direction from the air inlet to the air outlet of the housing, the internal structure comprises an air inlet cover, the air duct, the heating wire assembly and an air outlet cover which are sequentially arranged in the accommodating cavity, the air outlet cover is detachably arranged at the air outlet of the housing, and the air inlet cover is detachably arranged at the air inlet of the housing; the air outlet cover is provided with a rotary buckle connected with the inner wall of the shell, and the air inlet cover is provided with a bayonet connected with the inner wall of the shell.

Preferably, a shock absorbing structure is further arranged between the outer shell and the inner structure.

Preferably, the shock-absorbing structure includes: the O-shaped sealing ring is annularly arranged on the outer side wall of the air duct and clamped between the outer side wall of the air duct and the inner wall of the shell so as to block the vibration of the air duct in the radial direction; and the plane damping soft rubber is sleeved at the air inlet of the air duct to block the vibration of the air duct in the axial direction.

In order to solve the above technical problem, another technical solution adopted by the present application is:

a hair drier comprises the fan.

Compared with the prior art, the application has the beneficial effects that: the application provides a fan and hairdryer, its mounted position through changing the silicon controlled rectifier separates the silicon controlled rectifier from the circuit board alone to install on the inside lateral wall that is formed with the dryer in wind channel, utilize the air current in the wind channel to dispel the heat to the silicon controlled rectifier, thereby realized the heat dissipation purpose of silicon controlled rectifier low-cost high-effect.

Drawings

FIG. 1 is a schematic diagram of the position relationship between an air duct and a thyristor in the present application;

FIG. 2 is an exploded view of the air duct and the thyristor in the present application;

FIG. 3 is a perspective view of the present application showing the relationship between the position of the thyristor and the hair dryer;

fig. 4 is a schematic structural view of the hair dryer of the present application;

FIG. 5 is a schematic view of the interior of a housing in the present application;

FIG. 6 is an exploded view of FIG. 5;

FIG. 7 is an enlarged schematic view of region A in FIG. 5;

FIG. 8 is an enlarged schematic view of region B in FIG. 5;

FIG. 9 is an enlarged schematic view of region C of FIG. 6;

FIG. 10 is an enlarged schematic view of region D of FIG. 6;

FIG. 11 is a schematic cross-sectional view of a housing of the present application;

FIG. 12 is a schematic view of the position relationship between the clip and the guide strip in the present application;

fig. 13 is a structural schematic diagram of the soft planar damping rubber in the present application.

Detailed Description

The present application will now be described in further detail with reference to the accompanying drawings, whereby one skilled in the art can, with reference to the description, make an implementation. If in the embodiments of the present application there is a description referring to "first", "second", etc., the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In the description of the present application, it is also to be noted that, unless otherwise specified or limited more specifically, the terms "disposed" and "connected" are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those of ordinary skill in the art.

In addition, if the meaning of "and/or" appears in the application, three parallel schemes are included, and the example of "A and/or B" includes the scheme A, the scheme B or the scheme A and the scheme B which are satisfied simultaneously. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

The existing electric wind blower is internally provided with a silicon controlled rectifier, which is a short name of a silicon controlled rectifier element, and the silicon controlled rectifier not only has the function of rectification, but also can be used as a contactless switch to quickly switch on or off a circuit, so that the inversion of converting direct current into alternating current is realized. The thyristor that blows can self produce a large amount of heats when using, consequently, need dispel the heat to the thyristor, and the thyristor that most electric wind blows on the market at present still is integrated on the circuit board through the welded mode, and the installation is more complicated, and the radiating mode who adopts realizes through the mode of the fin area of increase thyristor self, and the radiating effect is poor.

In view of the above, referring to fig. 1 and fig. 2, fig. 1 is a schematic diagram of a position relationship between the wind pipe 100 and the thyristor 600, and fig. 2 is an exploded schematic diagram of the wind pipe 100 and the thyristor 600, and the present application provides a fan, including: the air duct 100 is arranged in a hollow manner along the axial direction of the air duct 100 so as to form a hollow cavity penetrating through the air duct 100; and a thyristor 600 detachably disposed on a sidewall of the air duct 100; the side wall of the air duct 100 is provided with an opening 140, and the opening 140 is used for accommodating the thyristor 600, so that the airflow in the air duct flows through the thyristor 600, and the temperature of the thyristor 600 is further reduced.

In this way, the silicon controlled rectifier 600 is arranged on the side wall of the air duct 100 by changing the installation position of the silicon controlled rectifier 600 in the application, and the silicon controlled rectifier 600 is cooled by utilizing the air flow in the air duct, so that the purpose of low-cost and high-efficiency heat dissipation of the silicon controlled rectifier 600 is realized.

It can be understood that, the air duct 100 and the thyristor 600 can be connected by screws or buckles, and the present application is not limited thereto, and can also be in other detachable connection modes that can realize the air duct 100 and the thyristor 600.

It can be understood that, since the wind wheel 400, the motor 300 and the guide vane assembly 200 are disposed inside the wind tunnel 100, the space inside the wind tunnel 100 is relatively limited, and it is preferable that the thyristor 600 is disposed on the outer sidewall of the wind tunnel 100. Referring to fig. 1 and fig. 2, the air duct 100 is a hollow sleeve with two open ends, the air duct 100 is internally provided with a wind wheel 400, a motor 300 and a guide vane assembly 200 along an air inlet direction, and the wind wheel 400 is adjacent to the guide vane assembly 200. The guide vane assembly 200 comprises a motor fixing seat 210 supporting the motor 300 and a guide vane 220 arranged on the outer wall of the motor fixing seat 210, and the guide vane 220 is connected with the motor fixing seat 210 and the inner wall of the air duct 100 so as to fix the motor 300 inside the air duct 100; the guide vane 220 fixes the motor 300 in the wind duct 100, and guides the airflow in the wind wheel 400, thereby homogenizing the airflow. The wind wheel 400 is fastened on the output shaft of the motor 300, is completely nested in the wind barrel 100, and can rotate around the output shaft of the motor 300 in the wind barrel 100.

Further, referring to fig. 2, the thyristor 600 has a heat dissipation surface 610 for dissipating heat of the thyristor, and the heat dissipation surface 610 is disposed at the opening 140, so as to reduce the temperature of the thyristor 600. It can be understood that, the heat dissipation surface 610 of the thyristor 600 is blocked at the opening 140, so that strong wind in the wind channel of the wind tunnel 100 can blow over the heat dissipation surface 610, thereby realizing effective heat dissipation of the thyristor 600, and having the advantages of simple heat dissipation structure and good heat dissipation effect.

Further, considering that the outer side wall of the air duct 100 is substantially a circumferential wall, when the thyristor 600 is installed, if the thyristor is directly installed on the outer side wall of the air duct 100, the installation difficulty may be increased, therefore, the surrounding rib 150 is fixedly installed on the outer side wall of the air duct 100, please continue to refer to fig. 2, the surrounding rib 150 is arranged along the edge of the opening 140 to form a preset installation area for installing the thyristor 600. Therefore, the silicon controlled rectifier 600 can be conveniently installed on the air duct 100, and the air duct has the advantage of convenience in installation. It is understood that the surrounding rib 150 may be disposed on the outer side of the air duct 100 by way of integral molding, or may be welded, riveted, etc., and is not limited herein.

Further, in order to facilitate wiring of the thyristor 600, the thyristor 600 is installed on an outer sidewall below the air duct 100. Referring to fig. 3 and 4, in the installation process of the thyristor 600, the thyristor is connected to an electric control board embedded in the handle through a wire, and the handle is disposed below the air duct 100, so that the opening 140 is disposed on the outer sidewall of the air duct 100 and close to the handle to enable the thyristor 600 to be close to the electric control board in order to facilitate smooth routing of the thyristor 600. Therefore, the conducting wire on the controllable silicon 600 can smoothly enter the handle to be connected with the electric control board in the handle, and the controllable silicon electric hand-held device has the advantage of convenient wiring.

Further, referring to fig. 5 and 6, the blower further includes: a housing 500 and an inner structure including the air duct 100; the shell 500 is open at two opposite ends and is hollow along the axial direction to form an accommodating cavity, and the shell 500 is sleeved on the periphery of the internal structure; wherein, one end of the internal structure is connected with the inner wall of the housing 500 through a rotary buckle, and the other end opposite to the internal structure is connected with the inner wall of the housing 500 through a buckle. Specifically, the housing 500 has an air inlet and an air outlet, and a flange 510 growing inward along the radial direction of the housing is formed at the air outlet of the housing 500 to form a limiting shoulder; wherein, one end of the inner structure is abutted against the flange 510 and is connected with the inner wall of the housing 500 by screwing.

Further, with continuing reference to fig. 5 and fig. 6, in a direction from the air inlet to the air outlet of the housing 500, the internal structure includes an air inlet cover 900, the air duct 100, the heater assembly 700 and an air outlet cover 800 sequentially disposed in the accommodating cavity, wherein the air outlet cover 800 is detachably disposed at the air outlet of the housing 500, and the air inlet cover 900 is detachably disposed at the air inlet of the housing 500. Inner structure when the installation, goes out fan housing 800 and passes through screw connection in one side of heater subassembly 700, and dryer 100 joint is in heater subassembly 700's opposite side, specifically, is located to be equipped with first joint structure on the motor fixing base 210 in dryer 100, is equipped with on heater subassembly 700 with first joint structure matched with second joint structure, and dryer 100 connects to heater subassembly 700 through the cooperation joint of first joint structure and second joint structure.

Specifically, referring to fig. 6 in combination with fig. 7, the outer wall of the air outlet cover 800 is provided with a turn buckle 810 connected with the inner wall of the housing 500, the inner wall of the housing 500 is provided with a blocking rib 520 engaged with the turn buckle 810, and the blocking ribs 520 are arranged in one-to-one correspondence with the turn buckle 810. The blocking rib 520 is of an L shape, and includes a long rib and a short rib, the long rib and the flange 510 limit the movement of the air outlet cover 800 in the axial direction of the casing 500, and the short rib limits the movement of the air outlet cover 800 in the circumferential direction of the casing 500. Referring to fig. 9 and fig. 10, an arc-shaped groove 811 is disposed on a side wall of the rotary buckle 810 opposite to the inner wall of the housing 500, a protruding edge 521 clamped with the arc-shaped groove 811 is disposed in an area surrounded by the blocking rib 520, the protruding edge 521 is parallel to the short rib, and the protruding edge 521 and the arc-shaped groove 811 together form a circumferential clamping structure of the air outlet cover 800. Referring to fig. 6 in combination with fig. 8, an arc-shaped piece extending toward the air duct 100 is disposed on a circumferential edge of the air inlet cover 900, a bayonet 910 connected to an inner wall of the outer casing 500 is disposed on the arc-shaped piece, a plurality of fasteners 530 engaged with the bayonet 910 are disposed on an inner wall of the outer casing 500 at equal intervals, and the fasteners 530 and the bayonet 910 are disposed in a one-to-one correspondence manner. Referring to fig. 11 and 12, at least one of the latches 530 is provided with a guide strip 531, the guide strips 531 are formed on an inner wall of the housing 500 and symmetrically located at two opposite sides of the latch 530, and the guide strip 531 is used for positioning the mounting of the latch 910 and the latch 530, so as to facilitate the engagement between the latch 910 and the latch 530.

Further, it is considered that most of the area between the air duct 100 and the casing 500 is hard contact, which cannot effectively block the basic noise generated by the operation vibration of the motor 300 and affect the hearing effect of the user. Accordingly, a shock absorbing structure is provided between the outer case 500 and the inner structure. Referring to fig. 5 in conjunction with fig. 6, the shock absorbing structure includes: an O-shaped sealing ring 160 and a plane damping soft rubber 170. The O-ring 160 is disposed around the outer sidewall of the wind barrel 100 and clamped between the outer sidewall of the wind barrel 100 and the inner wall of the casing 500 to block the vibration of the wind barrel 100 in the radial direction. The plane damping soft rubber 170 is sleeved at the air inlet of the air duct 100 to block the vibration of the air duct 100 in the axial direction. Referring to fig. 5 in combination with fig. 13, the plane damping soft rubber 170 includes an axial soft rubber ring and a radial soft rubber ring, and the axial soft rubber ring and the radial soft rubber ring are integrally formed; the axial soft rubber ring is arranged on the outer circumferential side wall of the air inlet of the air duct 100 in a surrounding way, and the radial soft rubber ring is propped against the end surface of the air inlet of the air duct 100. Wherein, the end face of the radial soft rubber ring close to the side of the air inlet cover 900 is formed with a groove 171, and when the air inlet cover 900 is installed to the air inlet of the shell 500, the groove 171 can make the plane damping soft rubber 170 have an extension space.

It is understood that the fan in the present application can be applied to different usage scenarios, which are illustrated below by way of example.

The blower in the present application can be applied to a hair dryer, please refer to fig. 3 and 4, and the hair dryer comprises the blower.

It can be understood that the above specific application is only an illustration of the fan in the present application, and those skilled in the art may make an adaptive adjustment according to actual situations, which is not described herein again.

In summary, in the application, the silicon controlled rectifier is separated from the circuit board independently by changing the installation position of the silicon controlled rectifier, and is installed on the side wall of the air duct, the air duct is formed inside the air duct, the opening is formed in the side wall of the air duct, the heat dissipation surface is blocked at the opening, and the silicon controlled rectifier is dissipated by utilizing the air flow in the air duct, so that the cost of more heat dissipation fins arranged outside the silicon controlled rectifier is saved, and the low-cost and high-efficiency heat dissipation effect of the silicon controlled rectifier is realized; secondly, the silicon controlled rectifier walks the line downwards, and the wire of being convenient for smoothly gets into the handle and is connected with the automatically controlled board in the handle, can realize high-efficient arrangement silicon controlled rectifier's walking the line. In addition, the shell is connected with the internal structure through the turnbuckle and the buckle, so that the installation is convenient and reliable; shock-absorbing structure can effectively reduce basic vibration noise, and the guarantee fan has good hearing effect.

While the embodiments of the present application have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in a variety of fields suitable for this application, and further modifications will be readily apparent to those skilled in the art, and it is therefore not intended to be limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (10)

1. A fan, comprising:

the air duct is internally and hollow arranged along the axial direction of the air duct so as to form a hollow cavity penetrating through the air duct, and the hollow cavity is an air duct of the air duct; and

the silicon controlled rectifier is detachably arranged on the side wall of the air duct;

the side wall of the air duct is provided with an opening, and the opening is used for containing the silicon controlled rectifier, so that air flow in the air duct can flow through the silicon controlled rectifier, and the temperature of the silicon controlled rectifier is reduced.

2. The fan as set forth in claim 1,

the controllable silicon has the cooling surface, the cooling surface set up in the opening part is used for the shutoff the opening.

3. The fan as set forth in claim 1,

and the outer side wall of the air duct is fixedly provided with a surrounding rib, and the surrounding rib is arranged along the edge of the opening to form a preset installation area for installing the silicon controlled rectifier.

4. The fan as set forth in claim 1,

a handle is arranged below the air duct, and an electric control plate connected with the controlled silicon is arranged in the handle; the opening is close to the handle, so that the controllable silicon is close to the electric control board.

5. The fan of claim 1, further comprising: the air duct comprises a shell and an inner structure containing the air duct; the shell is provided with openings at two opposite ends and is hollow in the axial direction of the shell to form an accommodating cavity, and the shell is sleeved on the periphery of the internal structure;

one end part of the internal structure is connected with the inner wall of the shell through a rotary buckle, and the other opposite end part of the internal structure is connected with the inner wall of the shell through a buckle.

6. The fan as recited in claim 5,

the shell is provided with an air inlet and an air outlet, and a flange which grows inwards along the radial direction of the air outlet is formed at the air outlet of the shell so as to form a limiting clamping shoulder;

one end part of the inner structure is abutted against the flange and is connected with the inner wall of the shell through a rotary buckle.

7. The fan as recited in claim 5,

in the direction from the air inlet to the air outlet of the shell, the internal structure comprises an air inlet cover, the air duct, the heating wire assembly and an air outlet cover which are sequentially arranged in the accommodating cavity, the air outlet cover is detachably arranged at the air outlet of the shell, and the air inlet cover is detachably arranged at the air inlet of the shell;

the air outlet cover is provided with a rotary buckle connected with the inner wall of the shell, and the air inlet cover is provided with a bayonet connected with the inner wall of the shell.

8. The fan as claimed in claim 7 wherein a shock absorbing structure is further disposed between the outer casing and the inner structure.

9. The fan of claim 8, wherein the shock absorbing structure comprises:

the O-shaped sealing ring is annularly arranged on the outer side wall of the air duct and clamped between the outer side wall of the air duct and the inner wall of the shell so as to block the vibration of the air duct in the radial direction; and

the plane damping soft rubber is sleeved at the air inlet of the air duct to block the vibration of the air duct in the axial direction.

10. A hair dryer, characterized in that it comprises a blower as claimed in any one of claims 1 to 9.

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