CN218717602U

CN218717602U - Air blowing device

Info

Publication number: CN218717602U
Application number: CN202222642106.4U
Authority: CN
Inventors: 冀强; 范功远
Original assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Current assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-03-24
Anticipated expiration: 2032-09-30

Abstract

The utility model relates to a blowing device, which comprises a main case, a letter channel component connected with the front end of the main case, an air outlet pipe connected with the front end of the letter channel component, a holding part fixed on the main case, a motor component arranged in the letter channel component and a fan component driven by the motor component, wherein the main case, the letter channel component and the air outlet pipe are communicated with each other; the main chassis is including connecting in the first end of letter way subassembly, forming the second end of air intake and connecting the intermediate part between first end and second end, and the intermediate part is the arc setting, and the one end of portion of gripping is connected in the intermediate part, and the other end is kept away from the intermediate part and is extended backward along an axis. The utility model discloses a blast apparatus, during user's gripping portion of gripping, the air intake is far away apart from the distance of user's ear, and in the noise that fan assembly produced was difficult for transmitting to user's ear, user experience was good.

Description

Air blowing device

[ technical field ] A method for producing a semiconductor device

The utility model relates to a garden instrument field, in particular to blast apparatus.

[ background of the invention ]

The user is very inconvenient when clearing up waste paper, fallen leaves in the greenbelt, and blast apparatus has solved this problem well. The blowing device comprises a shell, a motor assembly arranged in the shell and a fan assembly driven by the motor assembly, wherein an air inlet and an air outlet are formed at two end parts of the shell respectively, and the motor assembly drives the fan assembly to rotate at a high speed so as to form air flow sucked from the air inlet and discharged from the air outlet. The air force of the blower is strong, the generated air flow can help a user to easily process waste paper and fallen leaves in the green belt, and the user only needs to continuously blow air towards the green belt, so that sundries are blown out of the green belt to a road to be cleaned conveniently.

However, in the blowing device in the prior art, the motor assembly drives the fan assembly to operate at a high speed, and simultaneously, a large amount of noise is generated and is transmitted into the ears of a user through the air inlet, so that the user experience is poor; in addition, the blowing device is also provided with a holding part for a user to grasp, and two ends of the holding part are connected to the shell, so that the distance between the user and the air inlet is short, and the noise is easily transmitted to the ears of the user. In addition, for the convenience of the user directly blows the ground, the whole length of the air blowing device can be increased by arranging the air outlet pipe on the shell, and the longer air outlet pipe causes the loss of air to be larger and the air duct efficiency is reduced.

In view of the above, there is a need for an improved blower to overcome the disadvantages of the prior art.

[ Utility model ] content

Not enough to prior art, the utility model aims to provide an efficient and good blast apparatus of user experience.

The utility model provides a prior art problem can adopt following technical scheme: a blowing device comprises a main case, a letter channel assembly connected to the front end of the main case, an air outlet pipe connected to the front end of the letter channel assembly, a holding part fixed on the main case, a motor assembly installed in the letter channel assembly and a fan assembly driven by the motor assembly, wherein the main case, the letter channel assembly and the air outlet pipe are communicated, the end part of the main case, far away from the letter channel assembly, is provided with an air inlet, the end part of the air outlet pipe, far away from the letter channel assembly, is provided with an air outlet, and the motor assembly drives the fan assembly to rotate so as to form air flow sucked from the air inlet and blown out from the air outlet; the mainframe shell including connect in the first end of letter way subassembly, form the second end of air intake and connect in first end with intermediate part between the second end, the intermediate part is the arc setting, the one end of portion of gripping connect in intermediate part, and the other end is kept away from along an axis intermediate part extends backward.

The further improvement scheme is as follows: the holding part is arranged in a hollow tubular shape.

The further improvement scheme is as follows: the axis of the motor assembly and the axis of the holding part are positioned on the same central line.

The further improvement scheme is as follows: the projection length of the holding part on the central line is not less than the sum of the projection lengths of the duct assembly and the air outlet pipe on the central line.

The further improvement scheme is as follows: the blowing device comprises a battery pack detachably mounted at the other end of the holding part, and the battery pack is obliquely arranged relative to the center line.

The further improvement scheme is as follows: the blowing device comprises a flow guide part arranged on the front side of the fan assembly, and the flow guide part is fixed in the air outlet pipe.

The further improvement scheme is as follows: the fan assembly is installed in the duct assembly and is located between the flow guide portion and the motor assembly.

The further improvement scheme is as follows: the fan assembly is located the letter way subassembly with go out the hookup location department of tuber pipe.

The further improvement scheme is as follows: the second end extends downwards, and an included angle between the first end and the second end is 90 degrees.

The further improvement scheme is as follows: the blowing device comprises an air inlet cover covering the air inlet, the air inlet cover is provided with air holes penetrating through, and the air holes are communicated with the air inlet.

Compared with the prior art, the utility model discloses following beneficial effect has: the main machine shell is provided with an arc-shaped middle part, the holding part is connected to the middle part and extends backwards, and the air inlet extends downwards far away from the holding part, so that when a user grips the holding part, the distance from the air inlet to the ears of the user is far, noise generated by the fan assembly is not easy to transfer into the ears of the user, and user experience is good; the axis of the motor assembly and the axis of the holding part are positioned on the same central line, so that a user can more comfortably hold the electric appliance; the diversion part is fixed in the air outlet pipe, the projection length of the diversion part on the central line is not less than half of the projection length of the air outlet pipe on the central line, and the air flow loss is further reduced by shortening the length of the air outlet pipe; meanwhile, the whole length of the blowing device is compensated by lengthening the length of the air outlet pipe, so that the user can directly blow the ground during operation.

[ description of the drawings ]

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:

fig. 1 is a schematic view of the whole blowing device of the present invention;

fig. 2 is a schematic exploded view of the blowing device shown in fig. 1.

[ detailed description ] embodiments

The present invention will be described in further detail with reference to the accompanying drawings and embodiments.

The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Words such as "upper", "lower", "front", "rear", "left", "right", etc., indicating orientations or positional relationships are based only on the orientations or positional relationships shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device/element referred to must have a particular orientation or be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Referring to fig. 1 and 2, an embodiment of the present invention relates to an air blowing device 100, and is suitable for blowing fallen leaves. Blowing device 100 includes the mainframe shell 1, connect in the subassembly 2 of letter of 1 front end of mainframe shell, connect in the play tuber pipe 3 of letter subassembly 2 front end, be fixed in the portion of gripping 4 of mainframe shell 1, install in motor element 6 in the letter subassembly 2, by motor element 6 driven fan assembly 8, set up in the water conservancy diversion portion 9 of fan assembly 8 front side and connect in the driving source (not shown in the figure) of the portion of gripping 4, the mainframe shell 1 the letter subassembly 2 with the inside of going out tuber pipe 3 is linked together, and mainframe shell 1 keeps away from the tip of letter subassembly 2 is provided with air intake 11, it keeps away from to go out tuber pipe 3 the tip of letter subassembly 2 is provided with air outlet 12, motor element 6 is in under the effect of driving source, drive fan assembly 8 is rotatory, in order to form the follow air intake 11 inhales, follow the air current that air outlet 12 blew out. The user grips the grip portion 4, aligns the air outlet 12 with the fallen leaves to be cleaned, and performs cleaning operation using the generated high-speed airflow.

In this embodiment, the main chassis 1 includes a first end 15 connected to the duct assembly 2, a second end 16 forming the air inlet 11, and a middle portion 17 connected between the first end 15 and the second end 16, the middle portion 17 is disposed in an arc shape, one end of the holding portion 4 is connected to the middle portion 17, and the other end extends backward away from the middle portion 17 along an axis; in addition, the second end 16 extends downward, so that the air inlet 11 is far away from the holding portion 4. In this embodiment, the main chassis 1 has the intermediate portion 17 that is the arc form, the portion of gripping 4 connect in intermediate portion 17 and backward extension, and air intake 11 is kept away from the portion of gripping 4 downwardly extending for the user's gripping during the portion of gripping 4, the distance of air intake 11 distance user's ear is far away, noise that fan assembly 8 produced is difficult for transmitting to user's ear in, user experience is good.

Referring to fig. 2, the grip portion 4 is disposed in a hollow tube shape to reduce the material of the grip portion 4, reduce the weight, and reduce the manufacturing cost.

In this embodiment, the motor assembly 6 is an external rotor brushless motor, and includes a stator, a rotor, and a motor shaft 61 protruding forward, the shaft sleeve 7 is press-fitted on the motor shaft 61, the fan assembly 8 is mounted on the shaft sleeve 7, and the shaft 61 rotates and drives the shaft sleeve 7 and the fan assembly 8 to rotate together.

In the present embodiment, the axis of the motor assembly 6 (i.e., the axis of the motor shaft 61) and the axis of the grip 4 are located on the same center line L1, so that the user can more comfortably grip the electric toothbrush.

As shown in fig. 2, the air guiding portion 9 is disposed in a conical shape, which can better guide the airflow generated by the fan assembly and improve the efficiency of the air duct. Further, fan assembly 8 install in the letter way subassembly 2, and be located water conservancy diversion portion 9 with between the motor element 6, it is compacter to arrange wholly.

In this embodiment, the fan assembly 8 is located at the connection position of the duct assembly 2 and the outlet duct 3.

In addition, the diversion part 9 is fixed in the air outlet pipe 3 to reduce the loss of air flow and improve the efficiency of the air duct. Furthermore, the projection length of the diversion part 9 on the central line L1 is not less than half of the projection length of the air outlet pipe 3 on the central line L1, and the air flow loss is further reduced by shortening the length of the air outlet pipe 3.

Meanwhile, in order to compensate for the lack of the length of the air outlet pipe 3, in the present embodiment, the projection length of the holding portion 4 on the center line L1 is not less than the sum of the projection lengths of the duct assembly 2 and the air outlet pipe 3 on the center line L1. The whole length of the blowing device 100 is compensated by lengthening the length of the air outlet pipe 3, so that the user can directly blow the ground during operation.

In the present embodiment, the driving source is a rechargeable lithium ion battery pack detachably attached to the other end of the grip portion 4 away from the intermediate portion 17, and the battery pack is disposed obliquely with respect to the center line L1. The battery pack is arranged at the rear end of the blowing device 100 to balance the weight of the motor assembly 6 and the weight of the fan assembly 8, so that the whole gravity center of the blowing device 100 is located on the holding part 4, a user can hold the blowing device more comfortably, and the operation experience is good.

Referring to fig. 2 again, the axis of the first end 15 is located on the center line L1, the axis of the second end 16 is L2, the included angle between the center lines L1 and L2 is 90 degrees, and the inner wall of the arc-shaped middle portion 17 guides the external airflow into the duct assembly 2, so as to improve the air intake efficiency.

In this embodiment, the blowing device 100 further includes an air inlet cover 5 covering the air inlet 11, the air inlet cover 5 has air holes 51 therethrough, and the air holes 51 communicate with the air inlet 11. The air inlet cover 5 prevents foreign materials from entering the blowing device 100 to damage the machine.

The utility model discloses in, host computer shell 1 has the intermediate part 17 that is the arc form, grip 4 connect in intermediate part 17 and backward extension, and air intake 11 is kept away from grip 4 downwardly extending makes the user's gripping during grip 4, air intake 11 is far away from the distance of user's ear, the noise that fan assembly 8 produced is difficult for transmitting to user's ear in, user experience is good. The axis of the motor assembly 6 and the axis of the grip portion 4 are located on the same center line L1 to make the user more comfortable to grip. The flow guiding part 9 is fixed in the air outlet pipe 3, the projection length of the flow guiding part 9 on the central line L1 is not less than half of the projection length of the air outlet pipe 3 on the central line L1, and the air flow loss is further reduced by shortening the length of the air outlet pipe 3; meanwhile, the whole length of the blowing device 100 is compensated by lengthening the length of the air outlet pipe 3, so that the user can directly blow the ground during operation.

The present invention is not limited to the above-described embodiments. It will be readily appreciated by those skilled in the art that many other alternatives to the disclosed blower device may be employed without departing from the spirit and scope of the invention. The protection scope of the present invention is subject to the content of the claims.

Claims

1. A blowing device comprises a main case, a letter channel assembly connected to the front end of the main case, an air outlet pipe connected to the front end of the letter channel assembly, a holding part fixed on the main case, a motor assembly installed in the letter channel assembly and a fan assembly driven by the motor assembly, wherein the main case, the letter channel assembly and the air outlet pipe are communicated, the end part of the main case, far away from the letter channel assembly, is provided with an air inlet, the end part of the air outlet pipe, far away from the letter channel assembly, is provided with an air outlet, and the motor assembly drives the fan assembly to rotate so as to form air flow sucked from the air inlet and blown out from the air outlet; the method is characterized in that: the mainframe shell including connect in the first end of letter way subassembly, form the second end of air intake and connect in first end with intermediate part between the second end, the intermediate part is the arc setting, the one end of portion of gripping connect in intermediate part, and the other end is kept away from along an axis intermediate part extends backward.

2. The blowing device of claim 1, characterized in that: the holding part is arranged in a hollow tubular shape.

3. The blowing device of claim 1, characterized in that: the axis of the motor assembly and the axis of the holding part are located on the same central line.

4. A blowing device according to claim 3, characterised in that: the projection length of the holding part on the central line is not less than the sum of the projection lengths of the duct assembly and the air outlet pipe on the central line.

5. Blowing device according to claim 4, characterized in that: the blowing device comprises a battery pack detachably mounted at the other end of the holding part, and the battery pack is obliquely arranged relative to the center line.

6. The blowing device of claim 1, characterized in that: the blowing device comprises a flow guide part arranged on the front side of the fan assembly, and the flow guide part is fixed in the air outlet pipe.

7. Blowing device according to claim 6, characterized in that: the fan assembly is installed in the duct assembly and is located between the flow guide portion and the motor assembly.

8. A blowing device according to claim 7, characterised in that: the fan assembly is located the duct assembly with go out the hookup location department of tuber pipe.

9. The blowing device of claim 1, characterized in that: the second end extends downwards, and an included angle between the first end and the second end is 90 degrees.

10. The blowing device of claim 1, characterized in that: the blowing device comprises an air inlet cover covering the air inlet, the air inlet cover is provided with air holes penetrating through, and the air holes are communicated with the air inlet.