CN211397991U

CN211397991U - Novel forced draught fan

Info

Publication number: CN211397991U
Application number: CN201922403438.5U
Authority: CN
Inventors: 金新榜
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-09-01
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a novel forced draught fan, which comprises a casing, wherein the left end of the casing is provided with a mesh enclosure for air inlet, the right end of the casing is detachably provided with an air pipe, the outer wall of the casing is molded to form a handle, a push type driving switch is arranged at the inner side of the handle, a power line connected with the driving switch is arranged at the outer side of the handle, a power part is arranged in the casing, the power part comprises a casing, and the casing is provided with a bullet-shaped air guide cover; the product can utilize high-speed airflow to take away the heat of the motor, thereby realizing long-time operation.

Description

Novel forced draught fan

Technical Field

The utility model relates to a novel fan of blowing out.

Background

The air blower is used for increasing the wind speed, generating high-speed airflow and achieving the purposes of dust removal and the like. However, due to the high-speed rotation of the motor, the interior of the storm fan generates accumulated heat, so that the shell of the storm fan also generates heat, a hot melting phenomenon is generated, the storm fan is dangerous, and meanwhile, the service life of the storm fan is also shortened.

Based on the problems, a novel forced draft fan capable of utilizing high-speed airflow to take away heat of a motor and achieving long-time operation is designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a can utilize high-speed air current to take away the motor heat, realize the novel fan of blowing out of long-time operation is provided.

The utility model discloses a realize through following technical scheme:

a novel forced draught fan comprises a casing, wherein a mesh enclosure for air inlet is arranged at the left end of the casing, an air pipe is detachably arranged at the right end of the casing, a handle is formed at the outer wall of the casing in an injection molding mode, a push type driving switch is arranged on the inner side of the handle, a power line connected with the driving switch is arranged on the outer side of the handle, a power part is arranged in the casing and comprises a shell, the shell is provided with a bullet-shaped air guide cover, an end cover is connected to the right side of the shell in a flange mode, an air outlet is formed in the axis center of the end cover and is coaxial with the air pipe, a motor is arranged in the air guide cover, part of the motor extends into the shell, the motor is connected with the driving switch, the motor is provided with an output shaft, and the output shaft is arranged rightwards, the fan blades are fixedly mounted on the output shaft, and a plurality of connecting pieces for connecting the machine shell are formed at the right end face of the shell in an injection molding mode.

Preferably, an auxiliary air hole is formed in the end of the air guide cover, when the fan blade rotates, the fan blade drives the air flow to move, and part of the air flow can enter through the auxiliary air hole and can better contact with the motor, the heat of the motor is taken away, and the motor is cooled.

Preferably, an air inlet gap is formed between the air guiding cover and the shell, air inlet guide vanes are installed at the air inlet gap 603, and a spiral gap is formed between two adjacent air inlet guide vanes; the air inlet guide vane is arranged at the air inlet gap, when air flow passes through the air inlet guide vane, the movement direction of the air flow is changed, vortex can be formed in the shell, then the air flow can run more smoothly under the action of the fan blade, and meanwhile the air speed of air outlet is increased.

Preferably, the diameter of the air duct is gradually reduced toward the right side.

Preferably, the handle is provided with an anti-slip surface which contacts with the palm; the above structure is convenient for being controlled by hands.

The utility model has the advantages that: in this product, the motor is installed in the wind scooper, and the wind scooper can reduce the resistance of intaking, and the air current after the wind scooper is straightened out can be used in the surface of motor after getting into, takes away the heat on the motor, and this product adopts built-in casing, can avoid heat direct transfer to give the casing, avoids the hot melt phenomenon of casing, and the structure of this product is comparatively simple, and the cost is comparatively cheap, is fit for using widely.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a power unit;

FIG. 3 is a left side view of the power unit;

FIG. 4 is a right side view of the end cap;

fig. 5 is a right side view of the fan blade.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "set", "coupled", "connected", "penetrating", "plugging", and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The novel forced draft fan shown in fig. 1 to 5 comprises a casing 1, wherein the left end of the casing 1 is provided with a mesh enclosure 2 for air intake, the right end of the casing 1 is detachably provided with an air duct 3, the outer wall of the casing 1 is injection-molded to form a handle 4, the inner side of the handle 4 is provided with a press-type driving switch 5, the outer side of the handle 4 is provided with a power cord 551 connected with the driving switch 5, the casing 1 is internally provided with a power part 6, the power part 6 comprises a casing 601, the casing 601 is provided with a bullet-shaped air guide cover 602, the right side of the casing 601 is flange-connected with an end cover 605, the axial center of the end cover 605 is provided with an air outlet 606, the air outlet 606 is coaxial with the air duct 3, the air guide cover 602 is internally provided with a motor 607, and part of the motor 607 extends into the casing 602, the motor 607 is connected with the driving switch 5, the motor 607 is provided with an output shaft 608, the output shaft 608 is arranged rightwards, the output shaft 608 is fixedly provided with fan blades 609, and a plurality of connecting pieces 610 for connecting the machine shell 1 are formed at the right end face of the shell 601 through injection molding.

The utility model discloses in the embodiment of a preferred the tip position department of wind scooper 602 is provided with an auxiliary air hole 611, when the fan blade rotates, drives the air current motion, and partial air current can get into through auxiliary air hole department, can be better with the motor contact to take away the heat of motor, realize the cooling of motor.

In a preferred embodiment of the present invention, an air inlet gap 603 is formed between the air guiding cover 602 and the housing 601, an air inlet guide vane 604 is installed at the air inlet gap 603, and a spiral gap is formed between two adjacent air inlet guide vanes 604; the air inlet guide vanes 604 are arranged at the air inlet gaps, when air flow passes through the air inlet guide vanes 604, the movement direction of the air flow is changed, vortex can be formed in the shell 601, then the air flow can run more smoothly under the action of the fan blades, and meanwhile the air speed of outlet air is increased.

In a preferred embodiment of the present invention, the diameter of the wind pipe 3 is gradually reduced toward the right side.

In a preferred embodiment of the present invention, the handle 4 is provided with an anti-slip surface 411 for contacting the palm; the above structure is convenient for being controlled by hands.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a novel storm fan, includes casing (1), the left end of casing (1) has screen panel (2) that an air inlet was used, an tuber pipe (3) are installed to the right-hand member detachable of casing (1), the outer wall department of casing (1) moulds plastics and forms a handle (4) drive switch (5) of a push type are installed to the inboard of handle (4), install a power cord (551) of connecting this drive switch (5) in the outside of handle (4), its characterized in that: a power component (6) is arranged in the machine shell (1), the power component (6) comprises a shell (601), the shell (601) is provided with a bullet-shaped wind guide cover (602), an end cover (605) is connected to the right flange of the shell (601), an air outlet hole (606) is arranged at the axis of the end cover (605), the air outlet hole (606) and the air pipe (3) are coaxially arranged, a motor (607) is arranged in the wind scooper (602), part of the motor (607) extends into the shell (601), the motor (607) is connected with the driving switch (5), the motor (607) is provided with an output shaft (608), the output shaft (608) is arranged to the right, the fan blades (609) are fixedly mounted on the output shaft (608), and a plurality of connecting pieces (610) for connecting the machine shell (1) are formed at the right end face of the shell (601) in an injection molding mode.

2. The new aeration machine of claim 1 wherein: an auxiliary air hole (611) is arranged at the end position of the air guide cover (602).

3. The new aeration machine of claim 1 wherein: an air inlet gap (603) is formed between the air guiding cover (602) and the shell (601), air inlet guide vanes (604) are installed at the air inlet gap (603), and a spiral gap is formed between every two adjacent air inlet guide vanes (604).

4. The new aeration machine of claim 1 wherein: the diameter of the air pipe (3) is gradually reduced towards the right side.

5. The new aeration machine of claim 1 wherein: the handle (4) is provided with an anti-slip surface (411) which contacts with the palm.