CN212325743U

CN212325743U - Hair dryer

Info

Publication number: CN212325743U
Application number: CN202021719234.9U
Authority: CN
Inventors: 林勇
Original assignee: Wenzhou Pritech Trade Co ltd
Current assignee: Wenzhou Pritech Trade Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-01-12
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses a hair dryer, including the dryer with the handle that the dryer is connected, be provided with fan assembly, its characterized in that in the handle: the front end of dryer is the air-out end, the rear end of dryer seals, the front end periphery of dryer is formed with annular air outlet, the front end center of dryer is formed with central exhaust vent, the inside high velocity air flow of dryer follows respectively annular air outlet with central exhaust vent blows out, the air current that annular air outlet blew out with the air current that central exhaust vent blew out mixes the cylindricality laminar flow air current that forms the wind pressure reinforcing after specific distance. The utility model discloses an air-out structure comprises annular air outlet and central exhaust vent, and the air current that blows off mixes the cylindricality laminar flow air current that forms the wind pressure reinforcing after specific distance, and this reinforcing section just in time is the normal use section of hair-dryer, the utility model discloses an above-mentioned structure makes the air current reach the highest wind pressure in the use section, has improved the utilization ratio of wind pressure.

Description

Hair dryer

Technical Field

The utility model relates to a small household electrical appliance especially relates to a hair dryer for blowing.

Background

Traditional hair-dryer includes dryer and handle, installs a fan unit in the dryer, during the use, often has the hair to be inhaled in the dryer, twines on the fan unit. There is a solution in the prior art to provide a fan assembly in a handle, such as utility model chinese patent No. 201310111469.8, published as 2016/8/3, and a hair dryer comprising a body, a fan unit and a duct for conveying an air flow to the body, wherein the duct comprises an air flow inlet positioned at or near an end of the duct remote from the body, and the fan unit is disposed in the duct between the inlet and the body, wherein a portion of the duct is lined with a material, and wherein the lined portion of the duct is disposed between the fan assembly and the body, wherein the hair dryer comprises an air flow path extending through the body, and a primary air flow path extending from the air flow inlet to an air flow outlet, wherein the air flow path is nested or embedded in the primary air flow path, and a heater is provided, the heater being located in the primary air flow path in the body, and the airflow flow path is in thermal communication with the heater. In the above scheme, the middle part of the body is of a hollow structure, air is exhausted from the periphery of the body, the front end of the hollow structure of the body is an air outlet end, the rear end of the hollow structure of the body is an air inlet end, and natural air can be supplemented to the air outlet by utilizing the coanda effect. The air outlet structure in the prior art gradually reduces the air pressure from the air outlet, and needs larger air pressure to meet the requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome above-mentioned prior art not enough, provide a wind pressure and strengthen, convenient to use, small mixed air-out hair dryer using section.

According to the utility model provides a pair of hair dryer, including the dryer with the handle that the dryer is connected, be provided with fan unit in the handle, the front end of dryer is the air-out end, the rear end of dryer is sealed, the front end periphery of dryer is formed with annular air outlet, the front end center of dryer is formed with central exhaust vent, the inside high velocity air of dryer is followed respectively annular air outlet with central exhaust vent blows out, the air current that annular air outlet blew out with the air current that central exhaust vent blew out mixes the cylindricality laminar flow air that forms the wind pressure reinforcing after specific distance.

According to the utility model provides a pair of hair dryer still has following attached technical characterstic:

further comprising, the air current that the annular air outlet blew out with the air current that the central exhaust vent blew out mixes behind 14cm and forms the cylindricality laminar flow air current of wind pressure reinforcing.

Further comprising that the length of the cylindrical laminar airflow with the enhanced wind pressure is 5cm-20 cm.

Further comprises that the aperture of the central air outlet is 2.0mm-3.0 mm.

The air duct is internally provided with an annular air duct communicated with the annular air outlet, the air duct is internally provided with a central air duct communicated with the central air outlet, and the high-speed air flow in the air duct respectively enters the annular air duct and the central air duct.

The wind tunnel is characterized in that a wind guide piece is arranged in an inner cavity at the front end of the wind tunnel, an annular air duct is formed on the periphery of the wind guide piece, an annular air outlet is formed on the periphery of the front end of the wind guide piece, a central air duct is formed in the center of the wind guide piece, and a central air outlet hole is formed in the center of the front end of the wind guide piece.

Further included, the air guide includes an outer wall and an inner wall, the outer wall with form between the inner wall annular wind channel, the front end of outer wall forms inside arc portion, the front end of inner wall forms outside arc portion, two arc portion sets up relatively and forms annular air outlet, annular air outlet is annular crack structure.

Further comprises that the arc part is a flow guide surface consisting of a plurality of sections of arc surface structures.

The air guide device is characterized in that an inner cavity is formed in the middle of the air guide piece, an air inlet hole is formed in the rear end of the inner cavity of the air guide piece, and the central air outlet hole is formed in the front end of the inner cavity of the air guide piece.

The air guide piece is characterized in that a horn mouth is formed in the middle of the front end of the air guide piece, and the central air outlet hole is located in the center of the horn mouth.

According to the utility model provides a pair of hair dryer compares with prior art and has following advantage: first, the utility model discloses an air-out structure comprises annular air outlet and central exhaust vent, and the air current that blows off mixes the cylindricality laminar flow air current that forms the wind pressure reinforcing after specific distance, and this reinforcing section just in time is the normal use section of hair-dryer, the utility model discloses an above-mentioned structure makes the air current reach the highest wind pressure in the use section, has improved the utilization ratio of wind pressure. Secondly, the utility model provides a hair dryer of brand-new structure, the dryer rear end of hair dryer is sealed, does not utilize the coanda effect to mix natural wind and hot-blast, and the hot-blast temperature that consequently blew off can be set for at will, easy control, not only safe and reliable, convenient to use.

Drawings

Fig. 1 is a sectional view of the present invention.

Fig. 2 is a cross-sectional view of the middle wind tube of the present invention.

Fig. 3 is a front view of the middle wind guide of the present invention.

Fig. 4 is a sectional view of the air guide of the present invention.

Fig. 5 is a rear view of the present invention.

Fig. 6 is an enlarged view of fig. 1 at a.

Fig. 7 is an exploded perspective view of the air guide of the present invention.

Fig. 8 is a schematic diagram of the middle blowing of the present invention.

Fig. 9 is a front view of the handle of the present invention.

Fig. 10 is a perspective view of the lower cover of the middle handle of the present invention.

Fig. 11 is a partial perspective view of the handle lower cover and the handle upper cover of the present invention.

Fig. 12 is a partial perspective view of the middle handle and the air duct of the present invention.

Fig. 13 is a perspective view of the upper handle cover and the lower handle cover of the present invention.

Fig. 14 is a perspective view of the upper handle cover, the lower handle cover and the fixing base of the present invention.

Fig. 15 is a cross-sectional view of a closure of the present invention.

Detailed Description

For the purpose of clearly illustrating the aspects of the present invention, preferred embodiments are given below in conjunction with the accompanying drawings. The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

As shown in fig. 1 to 15, the utility model provides a pair of hair dryer, including dryer 1 with the handle 2 that dryer 1 is connected, be provided with fan assembly 3 in the handle 2, the front end of dryer 1 is the air-out end, the rear end of dryer 1 is sealed, the front end periphery of dryer 1 is formed with annular air outlet 10, the front end center of dryer 1 is formed with central exhaust vent 20, the inside high-speed air current of dryer 1 is followed respectively annular air outlet 10 with central exhaust vent 20 blows out, the air current that annular air outlet 10 blew out with the air current that central exhaust vent 20 blew out mixes the cylindricality laminar air current that forms the wind pressure reinforcing after specific distance. The specific distance in this embodiment is the shortest distance between the air outlet of the hair dryer and the hair when the user is in regular use. The air-out of prior art hair-dryer is that the air outlet wind pressure is the highest usually, then reduces gradually, and the wind pressure of use section is the wind pressure that is less than air outlet department, in order to improve the wind pressure of use section, then needs improve the wind pressure of air outlet, and the increase of wind pressure not only needs the motor of higher rotational speed, still need improve the structure in whole wind channel, and high wind pressure also means the noise increase of hair-dryer. The utility model discloses utilize annular air-out and central air-out integrated configuration for the air-out is mixing in the use section, makes the wind pressure of use section reach the highest, make full use of air current.

The specific test data can be seen in the following table, from which it can be seen that the wind pressure in the prior art is gradually reduced, whereas the wind pressure in the present invention is increased after 14cm and starts to be reduced after 28 cm. From the air-out sketch map that fig. 8 gave, also can see that the utility model discloses a wind pressure reachs the highest when the service section.

The utility model provides a dryer 1 rear end is confined, does not utilize the coanda effect, just also does not have the natural wind to supply to hot-blast, and the hot-blast temperature that blows off is controllable.

Referring to fig. 1 to 4, in the above embodiments of the present invention, it is further included that the air flow blown out from the annular air outlet 10 and the air flow blown out from the central air outlet 20 are mixed after passing through 14cm to form a cylindrical laminar air flow with enhanced air pressure. The utility model discloses well 14cm is the shortest distance of use section usually, and the distance of use section and scalp is too short, and hot-blast can cause the discomfort to the scalp, also inconvenient use. The above distance is an optimum distance.

Referring to fig. 1 to 4, in the above embodiments of the present invention, it is further included that the length of the cylindrical laminar airflow with the enhanced wind pressure is 5cm to 20 cm. This example is 14cm, starting from 14cm and ending at 28cm, with a total length of 14 cm. The above size satisfies the use of hair dryer, namely the utility model has an effective use section of 5cm-20 cm. The wind pressure in this section is enhanced to the maximum.

Referring to fig. 1 to 4, in the above embodiment of the present invention, it is further included that the aperture of the central air outlet 20 is 2.0mm to 3.0 mm. This example is 2.5 mm. The specific distance is adjusted by controlling the aperture of the central air outlet 20, the aperture of 2.5mm in the embodiment is made to be 14cm, and the cylindrical laminar air flow starts from 14cm to end at 28cm, so that an effective use section is formed. The central air outlet 20 of the present invention is in the shape of a circle, a triangle, a polygon, an ellipse or a pentagram.

Referring to fig. 1 to 4, the above embodiments provided in the present invention further include that an annular air duct 101 is disposed in the air duct 1 and communicates with the annular air outlet 10, a central air duct 201 is disposed in the air duct 1 and communicates with the central air outlet 20, and the high-speed air inside the air duct 1 enters the annular air duct 101 and the central air duct 201 respectively. The utility model discloses a divide into two parts with same high-speed air current in the dryer 1, one of them most part gets into in the annular wind channel 101, a small part gets into in the central wind channel 201. The two parts of high-speed airflow are respectively blown out through the annular air outlet 10 and the central air outlet 20, so that cylindrical laminar airflow for enhancing air pressure can be formed after a specific distance. The annular air duct 101 and the central air duct 201 are isolated from each other to form an independent passage.

Referring to fig. 1 to 4, the above embodiment of the present invention further includes that a wind guide 4 is disposed in the front end inner cavity of the wind barrel 1, the periphery of the wind guide 4 forms the annular wind channel 101, the front end periphery of the wind guide 4 forms the annular wind outlet 10, the center of the wind guide 4 forms the central wind channel 201, and the front end center of the wind guide 4 forms the central wind outlet 20. The utility model discloses a wind-guiding 4 forms above-mentioned air-out structure, convenient processing, also easy to assemble.

Referring to fig. 1 to 4, in the above embodiment of the present invention, it is further included that the wind guiding member 4 includes an outer wall 43 and an inner wall 44, the annular wind channel 101 is formed between the outer wall 43 and the inner wall 44, a front end of the outer wall 43 forms an inward arc portion 431, a front end of the inner wall 44 forms an outward arc portion 441, two of the arc portions are oppositely disposed to form the annular wind outlet 10, and the annular wind outlet 10 is in an annular crack structure. The utility model provides an annular air outlet 10 comprises two arc portions, is favorable to the wind-guiding for the air current blows off more smoothly. Annular air outlet 10 is annular crack structure for the high velocity air can blow off the use section that specific distance reformed air pressure strengthened.

Referring to fig. 1 to 4, in the above embodiments of the present invention, it further includes that the

arc parts

431 and 441 are flow guide surfaces formed by multi-segment arc structures. The structure further improves the air guide effect.

Referring to fig. 1 to 4, the above embodiments of the present invention further include that the middle of the wind guide 4 forms an inner cavity, the rear end of the inner cavity of the wind guide 4 is provided with an air inlet 45, and the front end of the inner cavity is provided with the central air outlet 20. The middle inner cavity of the air guide member 4 is a central air duct 201, and the high-speed airflow in the air duct 1 enters the central air duct 201 through the air inlet hole 45 and is finally blown out from the central air outlet hole 20.

Referring to fig. 1 to 4, in the above embodiment of the present invention, it further includes that a bell mouth 47 is formed in the middle of the front end of the wind guide 4, and the central air outlet 20 is located in the center of the bell mouth 47. The bell mouth 47 guides the airflow blown out from the central air outlet 20, so that the airflow blown out from the central air outlet 20 is better mixed with the airflow blown out from the annular air outlet 10.

Referring to fig. 1 and 2, in the above embodiment of the present invention, it is further included that a heating assembly 5 is disposed between the outer wall 43 and the inner wall 44, and the heating assembly 5 is located in the annular air duct 101. The heating component 5 is composed of a plurality of sheet-shaped heating sheets and is clamped on the inner wall 44. The heating assembly 5 heats the air flow in the annular air duct 101. The outer wall 43 of the present invention is the outer shell of the wind guide 4, and the inner wall 44 may be an integral structure or may be composed of a plurality of components. In this embodiment, the inner wall 44 is formed by a support frame of the heating element 5 and a part of the inner wall connected to the outer wall 43, and the heating element 5 is first installed on the support frame, and then the support frame is clamped into the part of the inner wall, so that the support frame becomes a part of the inner wall. The above structure facilitates the installation of the heating assembly 5.

Referring to fig. 1, 2, 5 and 15, in the above embodiment of the present invention, it further includes that a sealing cover 6 is disposed at the rear end of the air duct 1, and the sealing cover 6 seals the rear end of the air duct 1. The sealing cover 6 is buckled at the rear end of the air duct 1, so that the rear end of the air duct 1 is sealed, and natural air is prevented from entering the air duct. The cover 6 is connected to the air duct 1 via a connecting member 60. A sealing strip 601 is arranged between the connecting piece 60 and the air duct 1 and the sealing cover 6. The utility model discloses a connecting piece 60 plays the effect of connecting closing cap 6 and dryer 1, through connecting piece 60 makes things convenient for the installation of two part structures for it is more firm to connect. The sealing strip 601 plays a role of sealing and prevents air leakage.

Referring to fig. 5 and 15, in the above embodiment of the present invention, it is further included that a power button 61 and a plurality of indicator light bars 62 located around the power button 61 are disposed on the cover 6. The power button 61 is used for controlling the on-off of the power supply. The indicator light bars 62 are provided with two, one is for temperature indication, and the other is for wind speed indication. The two indicator light bars 62 are arc-shaped and are lighted with different lengths according to sizes. The indicator light bar 62 is composed of a plurality of light sources and a light guide ring matched with the light sources, and the light guide ring scatters light of the light sources into a multi-section structure, so that the light is more attractive. The connector 60 is provided with a circuit board 63, the circuit board 63 is provided with a host switch 631, and the power button 61 abuts against the host switch 631. A recess 69 is formed in the cover 6, the power button 61 is disposed in the recess 69, and a sealing disc 68 is disposed between the power button 61 and the main body switch 631. The utility model discloses will circuit board 63 is fixed on the connecting piece 60, be provided with various circuits on the circuit board 63 for the work of control hair dryer. The utility model discloses be in with power button 61 setting on the closing cap 6, convenient operation. The recess 69 makes the whole more beautiful, and the power button 61 is installed in the recess 69 without misoperation. The sealing disc 68 seals the through hole at the power button 61 to prevent air leakage.

Referring to fig. 2, in the above embodiment of the present invention, it is further included that a circuit board 63 is installed on the inner side of the cover 6, and a negative ion generating device 64 is disposed on the circuit board 63. The negative ion generating device 64 faces the air duct 1, a negative ion head 641 of the negative ion generating device 64 is located in the central air duct 201, and negative ions are blown out through the central air outlet 20.

Referring to fig. 2, the above embodiment of the present invention further includes that a water ion structure 65 is disposed in the central air duct 201, the water ion structure 65 is a water condensation structure using temperature difference, and the formed water is scattered by the high-speed airflow and blown out through the central air outlet 20. The utility model provides an anion generator and water ion structure all belong to ripe structure, and here no longer gives unnecessary details to its theory of operation.

Referring to fig. 1, 6, 13 and 14, in the above embodiments of the present invention, it further includes that the casing of the handle 2 is a double-layer structure, and includes a main casing 21 located in an inner layer and a decorative casing 22 located outside the main casing 21, an inclined portion 23 is formed on an upper portion of the main casing 21, an accommodating space is formed between the inclined portion 23 and the decorative casing 22, and a button switch 24 is disposed in the accommodating space. Form the main wind channel in the main casing body 21, be provided with the air inlet structure on the handle 2, air inlet structure department is provided with the filter screen. The utility model discloses slope 23 has been set up, slope 23 with decorate shell 22 and can form the accommodation space to for button switch 24's installation provides installation space, button switch 24 can not insert the main air duct, also can not cause destruction to the main air duct, consequently need not set up seal structure specially, do sealed processing to button switch 24 installation department. The above structure makes the installation of the push button switch 24 more convenient and also provides a sealing effect.

Referring to fig. 13 and 14, in the above embodiment of the present invention, it is further included that a fixing post 231 is disposed on the inclined portion 23, a fixing frame 232 is mounted on the fixing post 231, and the button switch 24 is mounted on the fixing frame 232. The fixing frame 232 facilitates the installation of the button switch 24, so that the structure is more stable.

Referring to fig. 6, 9, 13 and 14, in the above embodiment of the present invention, it is further included that the main housing 21 includes an upper handle cover 211 and a lower handle cover 212, and the upper handle cover 211 and the lower handle cover 212 are fastened together. The upper section of the handle lower cover 212 is provided with a sealing strip 213, and the sealing strip 213 is fixed on the handle lower cover 212 through a secondary injection molding process. The handle upper cover 211 is provided with a groove 214 matched with the sealing strip 213, and the sealing strip 213 is clamped in the groove 214. The utility model discloses well main casing body 21's thickness is than thinner, and sealing strip 213 is difficult to fix, also does not fix a position, and sealed effect is relatively poor. The utility model discloses will main casing body 21 moulds plastics and accomplishes the back, and the rethread secondary technology of moulding plastics is in sealing strip 213 mould plastics on the handle lower cover 212, sealing strip 213 with handle lower cover 212 formula structure as an organic whole, sealing strip 213 is difficult for breaking away from, can not take place the displacement yet, and is easy to assemble, and sealed effect is better.

Referring to fig. 10 to 12, in the above embodiment of the present invention, it is further included that the sealing strip 213 includes two straight sections 214 located at two sides and an arc section 215 connecting the two straight sections 214, the straight sections 214 are located at the side ends of the handle lower cover 212, and the arc section 215 is located on the inner wall of the handle lower cover 212. The above structure of the present invention is just the position of the fan assembly, and the main air duct in the handle 2 is formed at this position, so the sealing strip 213 can seal this position to prevent air leakage.

Referring to fig. 10 to 12, in the above embodiment of the present invention, a groove matching with the linear section 214 is further provided on the handle upper cover 211, the linear section 214 is clamped into the groove, and the arc section 215 is clamped into the clamping groove 216 on the lower connecting section of the air duct 1. The upper ends of the handle upper cover 211 and the handle lower cover 212 are fastened to the lower connecting section of the air duct 1, and the arc-shaped section 215 can seal the connection, providing a sealing effect.

Referring to fig. 9, in the above embodiments of the present invention, it further includes that the decoration shell 22 is a cylindrical structure formed by integral injection molding, and the decoration shell 22 is sleeved outside the main housing 21. The utility model discloses in main casing body 21 adopts upper and lower two half structures, makes things convenient for the installation of internals. The decorative shell 22 is of an integral injection molding structure, and is more attractive and good in hand feeling.

Referring to fig. 2 and 7, in the above embodiment of the present invention, it is further included that an annular light guiding ring 71 and a light source 72 corresponding to the annular light guiding ring 71 are disposed at the front end of the air duct 1. The annular light guide ring 71 and the light source 72 form an annular light ring, which not only plays a role in indicating, but also makes the whole body more beautiful. The annular light guide ring 71 can scatter the point light source 72 to form a continuous aperture. The material of the annular light guide ring 71 is made by adding diffusant into plastic. The light source 72 includes a ring-shaped circuit board and a plurality of indicator lights disposed on the ring-shaped circuit board. The circuit board is used for fixedly mounting the indicator lights, and the indicator lights are circularly distributed on the circuit board.

In summary, the above-mentioned embodiments are only examples of the present invention, which are only used for illustrating the principles of the present invention and are not used for limiting the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a hair dryer, including the dryer with the handle that the dryer is connected, be provided with fan assembly in the handle, its characterized in that: the front end of dryer is the air-out end, the rear end of dryer seals, the front end periphery of dryer is formed with annular air outlet, the front end center of dryer is formed with central exhaust vent, the inside high velocity air flow of dryer follows respectively annular air outlet with central exhaust vent blows out, the air current that annular air outlet blew out with the air current that central exhaust vent blew out mixes the cylindricality laminar flow air current that forms the wind pressure reinforcing after specific distance.

2. A hair dryer as claimed in claim 1, wherein: and the airflow blown out from the annular air outlet and the airflow blown out from the central air outlet are mixed after passing through 14cm to form cylindrical laminar airflow with enhanced air pressure.

3. A hair dryer as claimed in claim 1, wherein: the length of the cylindrical laminar airflow with the enhanced wind pressure is 5cm-20 cm.

4. A hair dryer as claimed in claim 1, wherein: the aperture of the central air outlet is 2.0mm-3.0 mm.

5. A hair dryer as claimed in claim 1, wherein: the air duct is internally provided with an annular air duct communicated with the annular air outlet, the air duct is internally provided with a central air duct communicated with the central air outlet, and high-speed air flow in the air duct respectively enters the annular air duct and the central air duct.

6. A hair dryer as claimed in claim 5, wherein: the air duct is characterized in that an air guide member is arranged in an inner cavity at the front end of the air duct, the annular air duct is formed on the periphery of the air guide member, the annular air outlet is formed on the periphery of the front end of the air guide member, a central air duct is formed in the center of the air guide member, and a central air outlet hole is formed in the center of the front end of the air guide member.

7. A hair dryer as claimed in claim 6, wherein: the air guide piece comprises an outer wall and an inner wall, the outer wall and the annular air channel is formed between the inner walls, the front end of the outer wall forms an inward arc-shaped portion, the front end of the inner wall forms an outward arc-shaped portion, the two arc-shaped portions are oppositely arranged to form the annular air outlet, and the annular air outlet is of an annular crack structure.

8. A hair dryer as claimed in claim 7, wherein: the arc-shaped part is a flow guide surface consisting of a plurality of sections of arc-shaped structures.

9. A hair dryer as claimed in claim 7, wherein: the middle part of the air guide member forms an inner cavity, the rear end of the inner cavity of the air guide member is provided with an air inlet hole, and the front end of the inner cavity of the air guide member is provided with the central air outlet hole.

10. A hair dryer as claimed in claim 6, wherein: the front end middle part of air guide forms a horn mouth, central exhaust vent is located the center of horn mouth.