CN221241944U - Double-air-duct blower - Google Patents

Abstract

The utility model discloses a double-air-channel blower, which comprises a body, a handheld part and a gel module, wherein the body is provided with an inner tube and an outer wall extending around the inner tube, a first air channel for passing a main fluid is formed between the outer wall and the inner tube, and a second air channel for passing a secondary fluid is formed in the inner tube; the handheld part is connected with the body and internally communicated with the first air duct so as to discharge the sucked main fluid from the first air duct to the outside; the gel module is arranged on the body so that the secondary fluid passing through the second air duct brings out the effective components of the gel module; wherein a heater is arranged in the first air duct. In the technical scheme, the main fluid roll is sucked into the first air channel through the handheld part, the annular channel accelerates the airflow and discharges the airflow to the outside, the secondary fluid is driven to be sprayed out from the second air channel together under the action of air pressure, the effective components of the gel module are dispersed outwards along with the secondary fluid and are not heated by the heater, the chemical property of the gel module is stable, and the hair care function is well utilized.

Description

Double-air-duct blower

Technical Field

The utility model belongs to the technical field of filtering equipment, and particularly relates to a double-air-duct blower.

Background

Blowers are used in a variety of settings, such as drying hair or paint, and cleaning or stripping surface layers. The blower in the market at present has single function, and a specific gel module is required to be added in an air duct, wherein gel contains volatile hair care factors such as ethanol, deionized water, perfume and the like, and the air flow drives the hair care factors to emit odor components so as to improve user experience or hair quality.

Patent (publication number: CN 217487891U) discloses a blower with a gel module and convenient to assemble and disassemble, wherein the gel module is not arranged in an air inlet, but arranged in a tuyere of an air outlet. However, for some blowers, if the gel module is arranged at the air outlet, the gel can deform or even melt under the long-term heating of high-temperature air flow; if the gel module is added at the air inlet, the chemical properties of the effective components are changed after the effective components pass through the heater along with the airflow, so that the functions of the gel module are disabled.

Disclosure of utility model

The utility model mainly aims to provide a double-air-duct blower, and aims to solve the technical problem that a gel module is easy to fail in the existing blower with the gel module.

To achieve the above object, the present utility model provides a double-duct blower, including:

The device comprises a body, a first air channel and a second air channel, wherein the body is provided with an inner pipe and an outer wall extending around the inner pipe, a first air channel for passing primary fluid is formed between the outer wall and the inner pipe, and a second air channel for passing secondary fluid is formed in the inner pipe;

The handheld part is connected with the body and is internally communicated with the first air duct so as to discharge the sucked main fluid from the first air duct to the outside; and

The gel module is arranged on the body so that the secondary fluid passing through the second air duct brings out the effective components of the gel module;

Wherein, be provided with the heater in the first wind channel.

Optionally, a fan unit and a main fluid inlet into the interior of the hand-held part are provided in the interior of the hand-held part for drawing main fluid into the interior of the hand-held part.

Optionally, the end of the outer wall is tapered and extends continuously around the common end of the inner tube, forming a primary fluid outlet of the first duct therebetween.

Optionally, the other common end of the outer wall and the inner tube are connected to each other and closed.

Optionally, a secondary fluid inlet and a secondary fluid outlet of the second air duct are formed at two ends of the inner tube.

Optionally, the gel module comprises a housing and a gel provided on the housing, and the housing is provided on the secondary fluid inlet.

Optionally, the shell is hollow and has an annular mounting portion, and the annular mounting portion is connected to the inner side wall of the inner tube.

Optionally, a mounting space for accommodating the gel is formed inside the annular mounting portion.

Optionally, the annular mounting portion is provided with a plurality of dissipation holes, and each dissipation hole is communicated with the mounting space and the second air duct, so that the secondary fluid drives the gel to volatilize the effective components.

Optionally, the ratio of the annular width to the inner circle radius of the annular mounting portion is (0.4-0.8): 1.

According to the technical scheme, the main fluid roll is sucked into the first air channel through the handheld part, the annular channel accelerates air flow and discharges the air flow to the outside, the secondary fluid is driven to be sprayed out from the second air channel together under the action of air pressure, the effective components of the gel module are dispersed outwards along with the secondary fluid and are not heated by the heater, the chemical property of the gel module is stable, and the hair care function is well utilized.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other related drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of an embodiment of a dual duct blower provided by the present utility model;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a perspective view of the alternate view of FIG. 1;

FIG. 4 is a top view of FIG. 1;

FIG. 5 is a cross-sectional view taken along section A-A of FIG. 4;

FIG. 6 is a perspective view of the gel module of FIG. 1;

FIG. 7 is an exploded view of FIG. 6;

Fig. 8 is a perspective view of the second end plate of fig. 6.

In the figure: the double-duct blower comprises a double-duct blower body-100, a body-1, an inner pipe-11, an outer wall-12, a first duct-1 a, a main fluid outlet-1 b, a second duct-1 c, a secondary fluid inlet-1 d, a secondary fluid outlet-1 e, a hand-held part-2, a main fluid inlet-2 a, an outer air inlet net-21, a fan unit-22, a rectifying grid-23, a sponge-24, a gel module-3, a gel-31, a shell-32, a vent-32 a, a mounting space-32 b, an annular mounting part-321, a dissipation hole-321 a, a first end disc-322, a buckle-322 a, a mounting wall-323, a groove-323 a, a notch-323 b, a second end disc-324, an annular sink-324 a, a bayonet-324 b, a magnetic piece-325, a heater-4, a circuit board-5 and a shell-6.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

For a better description and illustration of embodiments of the utility model, reference should be made to one or more of the accompanying drawings, but the additional details or examples used to describe the drawings should not be construed as limiting the scope of any of the inventive, presently described embodiments or preferred modes of carrying out the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are positional relationships based on the drawings, are merely for convenience of describing the present utility model, and do not indicate that the apparatus referred to must have a specific orientation or operate in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

In the existing blowers in the market, if a gel module is arranged at an air outlet, gel can deform or even melt under the long-time heating of high-temperature air; if the gel module is added at the air inlet, the chemical properties of the effective components are changed after the effective components pass through the heater, so that the functions of the gel module are disabled.

In view of this, the present utility model provides a dual-air-duct blower, and fig. 1-8 are schematic views showing an embodiment of a dual-air-duct blower according to the present utility model, referring to fig. 1-8, the dual-air-duct blower 100 includes a body 1, a hand-held portion 2, and a gel module 3.

Specifically, the body 1 has an inner tube 11 and an outer wall 12 extending around the inner tube 11, a first air passage 1a for the passage of a primary fluid is formed between the outer wall 12 and the inner tube 11, and a second air passage 1c for the passage of a secondary fluid is formed in the inner tube 11; the hand-held part 2 is connected with the body 1, the inside of the hand-held part is of a hollow structure and is communicated with the first air duct 1a, and air flow enters the first air duct 1a through the inside of the hand-held part 2 by sucking main fluid, and then is discharged to the outside; the gel module 3 is arranged on the body 1 and at least partially arranged on the second air duct 1c, and the secondary fluid passing through the second air duct 1c brings out the volatile active ingredients of the gel module 3 under the drive of the primary fluid; in order to provide the air flow temperature rising function, a heater 4 is disposed in the first air duct 1a, so that the main fluid passing through the first air duct 1a is heated. The volatile cost of the gel module 3 includes ethanol, deionized water, perfume, and the like.

In the technical scheme of the utility model, the main fluid is sucked into the first air duct 1a through the hand-held part 2, and the annular channel accelerates the air flow and discharges the air flow to the outside; according to Bernoulli's principle, the air velocity is big, and pressure just is little, therefore under the effect of atmospheric pressure, the main fluid has driven secondary fluid to follow the second wind channel 1c and has sprayed out jointly, wherein the active ingredient of gel module 3 gives off outwards along with secondary fluid, and it does not pass through the heater 4 intensifies, and the chemical nature is stable, and the hair care function obtains fine utilization.

In order to enable the main fluid to be sucked into the first air duct 1a, referring to fig. 3 and 5, in an embodiment of the present utility model, the hand-held portion 2 is connected to the surface of the outer wall 12 and is integrally injection molded therewith, the interior of the hand-held portion 2 is hollow, and a fan unit 22 is mounted, and the fan unit 22 is composed of a brushless motor and fan blades. The end of the hand-held part 2 far away from the body 1 is provided with a main fluid inlet 2a which enters the interior of the hand-held part 2, and negative pressure is formed by rotation of the fan unit, so that main fluid is sucked into the interior of the hand-held part 2 in a rolling way.

Further, to reduce the foreign matters from entering the interior of the hand-held portion 2, the main fluid inlet 2a is provided with a double air inlet net, wherein the outer air inlet net 21 is detachably disposed to take out the isolated foreign matters. As a preferred embodiment, the outer air intake net 21 is magnetically attached to the hand-held part 2.

Still further, in order to guide the airflow to be more uniformly sucked by the fan unit, referring to fig. 5, a rectification grating 23 is disposed downstream of the main fluid inlet 2a, that is, inside the hand-held portion 2 near the main fluid inlet 2a, and the rectification grating 23 has a plurality of honeycomb rectification holes to uniformly suck the airflow. In addition, in order to reduce noise, a sponge 24 is provided at the rectifying grid 23 to reduce noise generated by the main fluid during rectification.

Thereby, the main fluid is fed into the first air duct 1a through the communication between the hand-held portion 2 and the outer wall 12. Referring to fig. 5, a heater 4 and a circuit board 5 are respectively disposed between the inner tube 11 and the outer wall 12, wherein the heater 4 is disposed in the first air channel 1a, the circuit board 5 is disposed away from the heater 4, and an inclined plate (not shown) is disposed between the outer wall 12 and the inner tube 11 to prevent air flow from entering the circuit board 5, so that after the main fluid enters the annular first air channel 1a, part of the main fluid changes the air flow direction through the inclined plate and is sprayed toward the heater 4.

In order to more intensively spray the main fluid in the first air duct 1a, referring to fig. 3, in an embodiment of the present utility model, an end portion of the outer wall 12 is tapered and continuously extends around a common end portion of the inner tube 11, and an annular slit formed therebetween is the main fluid outlet 1b of the first air duct 1 a. It should be appreciated that for consumer convenience, only one outlet of the first duct 1a is shown in fig. 2 and 4, and in one embodiment of the present utility model, the other common ends of the outer wall 12 and the inner tube 11 are connected and closed so that the air flow is ejected only toward the main fluid outlet 1b.

When the main fluid passes the tapered end, the direction of the air flow is changed, and the air flow ejected from the main fluid outlet 1b is more concentrated, and the flow velocity of the main fluid is maximized at a distance from the main fluid outlet 1b (i.e., the bundling point of the main fluid).

In addition, referring to fig. 2, 3 and 5, in an embodiment of the present utility model, a secondary fluid inlet 1d and a secondary fluid outlet 1e of the second air duct 1c are formed at two ends of the inner tube 11, wherein the secondary fluid outlet 1e and the primary fluid outlet 1b are on the same side. When the primary fluid is ejected from the primary fluid outlet 1b, the bundling point thereof is just located at the downstream of the second air duct 1c, and the secondary fluid is continuously carried out from the secondary fluid inlet 1d of the second air duct 1c to the secondary fluid outlet 1e under the action of air pressure according to the bernoulli principle, and is converged with the primary fluid at the bundling point, so that the ejected air flow is greatly increased.

It should be understood that the sucked secondary fluid can cool the circuit board 5 when passing through the second air duct 1c, so as to avoid overheat damage of components therein. Wherein, a functional switch (not shown in the figure) is arranged on the hand-held part 2, and the electric wire is connected to the circuit board 5 through the communication part of the hand-held part 2 and the outer wall 12; in addition, in order to avoid air leakage of the air duct, a soft rubber piece is further arranged at the wiring position to seal, and a shell 6 is further arranged at the periphery of the handle portion to protect. In addition, the circuit board 5 and the inner tube 11 and the outer wall 12 are also provided with sealing structures.

Referring to fig. 2 and 7, the secondary fluid inlet 1d is formed at an end of the inner tube 11, and the end and a common end of the outer wall 12 are connected and closed, and the gel module 3 is provided at the secondary fluid inlet 1d. Specifically, in the present embodiment, the gel module 3 includes a housing 32 and a gel 31 provided on the housing 32, and the housing 32 is connected to an end of the inner tube 11 and is close to a closing position of the inner tube 11 and the outer wall 12.

Further, referring to fig. 6, in an embodiment of the present utility model, the housing 32 is generally disc-shaped, and the middle portion is hollow to form a ventilation hole 32a, so that the air flow enters the second air duct 1c from the ventilation hole 32a of the housing 32. Wherein, in order to facilitate the installation of the housing 32, the housing 32 protrudes outwards along the axial direction of the vent hole 32a to form an annular protrusion, namely an annular installation portion 321, and the annular installation portion 321 is adapted to the secondary fluid inlet 1d so as to be connected to the inner side wall of the inner tube 11. Preferably, the outer periphery of the annular mounting portion 321 is connected to the inner side wall of the inner tube 11 in an interference manner, and the gel module 3 may be mounted by magnetic attraction.

In order to facilitate placement of the gel 31, referring to fig. 5, in an embodiment of the present utility model, a mounting space 32b for accommodating the gel 31 is formed inside the annular mounting portion 321. Specifically, referring to fig. 7 and 8, the housing 32 includes a first end plate 322 and a second end plate 324 that are connected to each other, and both are hollow, so as to form the ventilation hole 32a; the annular mounting portion 321 is formed on the second end plate 324, wherein the second end plate 324 is recessed inward toward the annular mounting portion 321 to form an annular recess 324a, the first end plate 322 axially protrudes outward along the edge of the vent hole 32a to form an annular mounting wall 323, and the mounting wall 323 is connected with the inner periphery of the annular recess 324a to form the mounting space.

In a preferred embodiment, the gel 31 is annular and is sleeved on the outer periphery of the mounting wall 323 so as to better emit the active ingredient. Of course, embodiments of the present utility model are not limited thereto, and the gel 31 may be directly placed in the annular sink 324 a.

In order to avoid the gel 31 being tightly adsorbed on the mounting wall 323, referring to fig. 7, the mounting wall 323 has a plurality of grooves 323a, and each groove 323a leaves a gap between the gel 31 and the mounting wall 323, so that the gel 31 is easier to be guided out without damaging the gel 31 when being replaced. Of course, the embodiment of the present utility model is not limited thereto, and the shape of the installation wall 323 may be square, bar-shaped, or the like, depending on the shape of the vent hole 32 a.

Further, referring to fig. 7, in an embodiment of the present utility model, the grooves 323a are uniformly distributed along the circumference of the mounting wall 323, so that the contact area between the gel 31 and the mounting wall 323 is small, and thus the friction force during replacement is smaller. In addition, in order to facilitate the removal of the gel 31, a plurality of notches 323b are uniformly formed at the end of the mounting wall 323 to facilitate the clamping of the gel 31.

In order to facilitate the dispersion of the active ingredient of the gel 31, referring to fig. 7, in an embodiment of the present utility model, the grooves 323a are bar-shaped and extend along the direction of the second air duct 1c, so as to increase the contact area between the gel 31 and the air flow, and further facilitate the volatilization of the active ingredient.

In order to enable the active ingredient to flow along with the secondary fluid, referring to fig. 5 to 8, in an embodiment of the present utility model, the annular mounting portion 321 (i.e. the bottom surface of the sink) is provided with a plurality of dissipation holes 321a, and each of the dissipation holes 321a communicates with the mounting space and the second air duct 1c, so as to facilitate the outward dissipation of the active ingredient of the gel 31. Thus, when the blower 100 is turned on, the secondary fluid passes through the second air duct 1c, and drives the active ingredient emitted from the emission hole 321a to increase. It should be understood that the opening direction of the dissipation hole 321a is consistent with the extending direction of the second air duct 1 c.

In addition, referring to fig. 7, in order to facilitate assembling the housing 32, in an embodiment of the present utility model, the first end plate 322 and the second end plate 324 are respectively provided with a magnetic member 325, typically a magnet or an iron block, so that the two end plates are connected to each other by the attraction of the magnetic member 325. Wherein, the magnetic members 325 are provided in plurality and are uniformly distributed along the circumferential directions of the first end disk 322 and the second end disk 324, respectively.

As a preferred embodiment, to make the connection between the first end plate 322 and the second end plate 324 more tight, referring to fig. 7, the first end plate 322 and the second end plate 324 are respectively provided with a plurality of snap-fit hooks 322a and snap-fit hooks 324b. Wherein, each of the fastener 322a and the bayonet 324b are uniformly distributed along the circumferential direction of the first end disc 322 and the second end disc 324, respectively.

In an embodiment of the present utility model, the ratio of the annular width to the inner radius of the annular mounting portion 321 is (0.4-0.8): 1, under this structural design, the inflow of secondary fluid into the second air duct 1c is not affected, and the hair care effect of the active ingredient of the gel 31 is ensured. In addition, the outer periphery of the vent hole 32a is provided with obvious fillets, so that the turbulence of air can be reduced, and abnormal sound generated by the second air duct 1c can be reduced.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A double-duct blower, the blower comprising:

The device comprises a body, a first air channel and a second air channel, wherein the body is provided with an inner pipe and an outer wall extending around the inner pipe, a first air channel for passing primary fluid is formed between the outer wall and the inner pipe, and a second air channel for passing secondary fluid is formed in the inner pipe;

The handheld part is connected with the body and is internally communicated with the first air duct so as to discharge the sucked main fluid from the first air duct to the outside; and

The gel module is arranged on the body so that the secondary fluid passing through the second air duct brings out the effective components of the gel module;

Wherein, be provided with the heater in the first wind channel.

2. The twin tunnel blower of claim 1 wherein a fan unit is provided within the interior of the handpiece and a primary fluid inlet into the interior of the handpiece for drawing primary fluid into the interior of the handpiece.

3. The dual tunnel blower of claim 1 wherein the end of the outer wall is tapered and extends continuously about the common end of the inner tube forming a primary fluid outlet of the first tunnel therebetween.

4. A twin tunnel blower as defined in claim 3, wherein the other common ends of the outer wall and the inner tube are interconnected and closed.

5. The twin tunnel blower of claim 1 wherein the inner tube is formed with a secondary fluid inlet and a secondary fluid outlet at both ends of the second tunnel.

6. The dual stack blower of claim 5 wherein said gel module comprises a housing and a gel disposed in said housing, said housing being disposed in said secondary fluid inlet.

7. The twin tunnel blower of claim 6 wherein the housing is hollow and has an annular mounting portion connected to the inner sidewall of the inner tube.

8. The twin tunnel blower of claim 7 wherein the annular mounting portion defines a mounting space therein for receiving the gel.

9. The twin air duct blower of claim 8, wherein the annular mounting portion defines a plurality of dissipation apertures, each of the dissipation apertures communicating the mounting space with the second air duct to permit secondary fluid to drive the active ingredient volatilized from the gel.

10. The twin tunnel blower of claim 7 wherein the ratio of the annular mounting portion's annular width to the inner circular radius is (0.4-0.8): 1.