Integrated air blower

Abstract

The utility model relates to an integrated air blower in the field of air blowers, which comprises an impeller, a brushless motor and a PCB (printed circuit board), the brushless motor is used for providing rotating power for the impeller, the impeller is provided with a rotating shaft which is coaxially connected with the impeller, and one end of the rotating shaft is connected with the circle center of the impeller through injection molding, so that the rotating shaft and the impeller are integrally arranged. One end of the rotating shaft extends outwards, the other end of the rotating shaft extends outwards, the other end of the rotating shaft is provided with a mounting bracket which is concentrically connected with the rotating shaft, the brushless motor is sleeved on the mounting bracket and is coaxially connected with the mounting bracket, and the mounting bracket is coaxially connected with the rotating shaft through a bearing. The balance and stability of the impeller driven by the brushless motor to rotate are improved, the brushless motor and the impeller are integrally installed through the installation support, the air blower is integrally assembled together in advance and then installed to the use position through the installation support, and the convenience, maintenance and replacement of follow-up installation are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of air blower, concretely relates to integrated air blower. BACKGROUND

[0002] Air blower as a kind of equipment for providing or increasing the pressure, flow or speed of fluid (usually air or gas) plays a key role in many industries and fields. It usually works by making fluid flow along a spiral or channel-shaped path, thereby exerting force on the fluid and pushing it to the outlet. The main application fields of air blower include but are not limited to: industrial production, air purification, air purifier, dehumidifier and other related fields.

[0003] The basic structure of existing air blower usually includes the following parts: motor, impeller and other key components, which are driven by motor to rotate, air is sucked into the inside of the shell, then accelerated and compressed by the impeller, and finally discharged from the outlet, effectively promoting air circulation, improving air quality and environmental comfort.

[0004] However, although the existing air blower has been widely used in many fields, there are still some obvious defects: the existing air blower is usually assembled by multiple components, when it is applied in air purifier or dehumidifier and other devices, the motor and shell are usually assembled and connected, then the impeller and motor are connected, resulting in complex installation structure, affecting the efficiency of air blower installation and maintenance, and the existing impeller is generally connected with motor shaft through through hole, resulting in poor perpendicularity of impeller and motor connection, and poor balance and stability of motor driving impeller rotation, thereby affecting the use of air blower. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve the above defects, provides integrated air blower, to solve the above background art the combination installation structure of existing air blower is relatively complex, resulting in inconvenient installation and use, and the connection driving effect of existing impeller and motor is poor, affecting the balance and stability of use technical problem.

[0006] The utility model aims to solve the above defects, provides integrated air blower, to solve the above background art the combination installation structure of existing air blower is relatively complex, resulting in inconvenient installation and use, and the connection driving effect of existing impeller and motor is poor, affecting the balance and stability of use technical problem.

[0007] Integrated air blower, including impeller, brushless motor for providing rotating power for impeller and PCB board, the rotating shaft of coaxial connection is arranged on the impeller, the center of the impeller is connected with the one end of rotating shaft through injection molding, so that rotating shaft and impeller are integrally arranged, the other end of rotating shaft extends outward, and the other end of rotating shaft is provided with concentrically connected mounting bracket, brushless motor is sleeved on mounting bracket and is coaxially connected with mounting bracket, mounting bracket is coaxially connected with rotating shaft through bearing, and mounting bracket is used for fixed connection with external connecting piece.

[0008] Further in the above description, the middle part of the impeller is formed with a protruding positioning ring, a positioning hole for accommodating the brushless motor is formed in the positioning ring, and one end of the rotating shaft extends into the positioning hole and is coaxially arranged with the positioning hole.

[0009] The positioning hole is arranged to embed the brushless motor in the impeller, so as to protect the brushless motor.

[0010] Further in the above description, the mounting bracket is formed with a shaft sleeve for mounting the brushless motor, the brushless motor is sleeved on the shaft sleeve and arranged in the positioning hole, the PCB board is mounted on the shaft sleeve, and the PCB board is electrically connected with the brushless motor.

[0011] The shaft sleeve on the mounting bracket is used to connect the brushless motor, and the shaft sleeve is coaxially connected with the rotating shaft. The brushless motor and the impeller are integrated and connected by the mounting bracket, so as to be combined into an integrated structure. The mounting bracket can be quickly connected with the external wind shell, so as to improve the convenience of subsequent installation of the blower.

[0012] Further in the above description, the inside of the shaft sleeve is formed with a through hole, a bearing is clamped and mounted in the through hole, both ends of the rotating shaft are formed with a fixed end and a connecting end respectively, the rotating shaft is fixedly connected with the impeller through the fixed end, and the connecting end of the rotating shaft extends into the positioning hole and penetrates into the bearing in the through hole to be coaxially connected with the through hole.

[0013] The through hole is arranged to clamp and connect the bearing, so as to coaxially connect the rotating shaft of the impeller with the bearing through the bearing. The balance and stability of the impeller during rotation can be further improved by the injection connection of the rotating shaft and the impeller.

[0014] Specifically, the connecting end of the rotating shaft is clamped and connected with a clamping spring, and the clamping spring is used to clamp and limit the bearing.

[0015] Further in the above description, the mounting bracket is provided with a plurality of mounting holes for fixed connection, and the mounting holes are distributed on the mounting bracket.

[0016] The mounting holes on the mounting bracket can be used to fixedly connect with the external wind shell, so that the rotating shaft can rotate relative to the mounting bracket through the connection of the bearing. The mounting bracket can conveniently install the brushless motor and the impeller with the wind shell, so as to facilitate connection and installation and improve the installation efficiency.

[0017] Specifically, the mounting bracket can integrally and conveniently install the brushless motor and the impeller, so that the brushless motor and the impeller have been assembled when leaving the factory, thereby facilitating installation through the mounting bracket.

[0018] Further in the above description, a plurality of groups of blades are connected to the impeller, and the blades are circumferentially distributed on the outside of the impeller.

[0019] The utility model discloses the beneficial effect has: through injection moulding technology connects one end of rotating shaft with the centre of impeller directly, forms integral type structure, strengthens the connecting strength between impeller and rotating shaft, reduces the looseness of long -term use or high -speed rotation and produces, and improves the balance and stability of impeller under the rotation of brushless motor drive, and the brushless motor is connected on the mounting support, makes the mounting support through bearing and rotating shaft coaxial connection, and the design of mounting support facilitates and external connecting piece firmly connected, when the brushless motor energization drive, can make rotating shaft drive impeller and rotate, the mounting support that sets up can conveniently install the air blower to corresponding equipment or device, and through mounting support, the brushless motor and impeller are integrated and installed to form integral type air blower, so that it can pre-integrated assembly together, and then install to the use position through mounting support, improve the convenience and maintenance replacement of subsequent installation. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the first direction's structural schematic drawing of integral type air blower of this embodiment;

[0021] Figure 2 It is the second direction's structural schematic drawing of integral type air blower of this embodiment;

[0022] Figure 3 It is the explosion drawing of integral type air blower of this embodiment;

[0023] Figure 4 It is the cross section connection structure schematic drawing of integral type air blower of this embodiment;

[0024] Figure 5 It is the structural schematic drawing of air purifier in this embodiment;

[0025] Figure 6 It is the explosion drawing of air purifier in this embodiment;

[0026] The reference signs in the drawing are respectively: 100-impeller, 101-positioning ring, 102-positioning hole, 103-blade, 200-brushless motor, 300-PCB board, 400-rotating shaft, 401-fixed end, 402-connection end, 500-mounting support, 501-shaft sleeve, 502-through hole, 503-mounting hole, 600-bearing, 700-clasp spring, 1-lower shell, 2-upper cover, 3-air casing. DETAILED DESCRIPTION

[0027] The utility model will be further described in detail in combination with the specific embodiment and the drawing.

[0028] The embodiment refers to Figures 1-6 The specific implementation of the integrated blower includes an impeller 100, a brushless motor 200 for providing rotating power for the impeller 100, and a PCB board 300. The impeller 100 is provided with a rotating shaft 400 coaxially connected. One end of the rotating shaft 400 is connected to the center of the impeller 100 through injection molding, so that the rotating shaft 400 is integrally arranged with the impeller 100. The other end of the rotating shaft 400 extends outward, and the other end of the rotating shaft 400 is provided with a mounting bracket 500 coaxially connected. The brushless motor 200 is sleeved on the mounting bracket 500 and coaxially connected with the mounting bracket 500. The mounting bracket 500 is coaxially connected with the rotating shaft 400 through a bearing 600. The mounting bracket 500 is used for fixedly connecting with an external connecting piece.

[0029] The middle part of the impeller 100 is formed with a raised positioning ring 101. The positioning ring 101 is formed with a positioning hole 102 for accommodating the brushless motor 200. One end of the rotating shaft 400 extends to the positioning hole 102 and is coaxially arranged with the positioning hole 102. The positioning hole 102 is arranged to embed the brushless motor 200 in the impeller 100, so as to protect the brushless motor 200.

[0030] Referring to Figure 2 and Figure 3 The mounting bracket 500 is formed with a shaft sleeve 501 for mounting the brushless motor 200. The brushless motor 200 is sleeved on the shaft sleeve 501 and arranged in the positioning hole 102. The PCB board 300 is mounted on the shaft sleeve 501. The PCB board 300 is electrically connected with the brushless motor 200. The shaft sleeve 501 on the mounting bracket 500 is used for connecting the brushless motor 200. The shaft sleeve 501 is coaxially connected with the rotating shaft 400. The brushless motor 200 and the impeller 100 are integrated by the mounting bracket 500, so as to be combined into an integrated structure. The mounting bracket 500 is used for quickly connecting with an external air shell 3, so as to improve the convenience of subsequent blower installation.

[0031] The shaft sleeve 501 is formed with a through hole 502. The bearing 600 is clamped and mounted in the through hole 502. The rotating shaft 400 is formed with a fixed end 401 and a connecting end 402 at both ends. The rotating shaft 400 is fixedly connected with the impeller 100 through the fixed end 401. The connecting end 402 of the rotating shaft 400 extends to the positioning hole 102 and penetrates into the bearing 600 in the through hole 502 to be coaxially connected. The through hole 502 is arranged to clamp and connect the bearing 600, so as to be coaxially connected with the rotating shaft 400 of the impeller 100 through the bearing 600. The injection molding connection of the rotating shaft 400 and the impeller 100 through the fixed end 401 can further improve the balance and stability of the rotating action of the impeller 100.

[0032] Specifically, the connecting end 402 of the rotating shaft 400 is clamped with a clamping spring 700, and the clamping spring 700 is used to clamp and limit the bearing 600.

[0033] The mounting bracket 500 is provided with mounting holes 503 for fixed connection, and six mounting holes 503 are arranged on the mounting bracket 500. The mounting holes 503 on the mounting bracket 500 can be used for fixed connection with the outer wind shell 3, so that the rotating shaft 400 can rotate relative to the mounting bracket 500 through the connection of the bearing 600. The mounting bracket 500 can conveniently install the brushless motor 200 and the impeller 100 with the wind shell 3, so that they can be conveniently connected and installed, and the installation efficiency is improved.

[0034] Specifically, the mounting bracket 500 can integrally and integrally install the brushless motor 200 and the impeller 100, so that the brushless motor 200 and the impeller 100 have been assembled when leaving the factory, so that the mounting bracket 500 can be conveniently installed.

[0035] The impeller 100 is connected with a plurality of blades 103, and the blades 103 are circumferentially distributed on the outer side of the impeller 100. Specifically, the shape, distribution and number of the blades 103 are not limited.

[0036] Specifically, the brushless motor 200 is composed of an iron core, a stator, a coil and a rotor. The rotor is arranged on the inner wall of the positioning hole 102, the stator and the coil are installed on the iron core, the iron core is sleeved on the shaft sleeve 501 of the mounting bracket 500, and the stator and the rotor are arranged in pairs. Its specific structure and driving principle belong to the conventional technical means in the art, and will not be described in detail here.

[0037] Specifically, five through avoidance notches are formed in the impeller 100, so that the screws can enter the avoidance notches and penetrate into the mounting holes 503 to be connected and installed with the external wind shell 3.

[0038] For example, referring to Figure 5 and Figure 6 The air blower in the embodiment is applied in an air purifier. The air purifier comprises an integrated air blower, a lower shell 1, an upper cover 2 arranged in pairs on the lower shell 1, and a wind shell 3 arranged between the lower shell 1 and the upper cover 2. The wind shell 3 is provided with an air inlet and an air outlet. The integrated air blower is installed in the wind shell 3 through the mounting bracket 500, so that the impeller 100 is driven by the brushless motor 200 to rotate at high speed, thereby generating strong airflow, effectively promoting air circulation, and improving air quality and environmental comfort.

[0039] The specific connection structure in the embodiment is:

[0040] The fixed end 401 of the rotating shaft 400 is connected with the center of the impeller 100 through an injection molding process, so that the rotating shaft 400 and the impeller 100 form an integrated structure, thereby enhancing the connection strength between the impeller 100 and the rotating shaft 400, reducing looseness caused by long-term use or high-speed rotation, and facilitating improvement of the perpendicularity of the connection between the rotating shaft 400 and the impeller 100, so as to enhance the balance and stability of the impeller 100 under the driving rotation of the brushless motor 200. Specifically, the rotating shaft 400 and the impeller 100 are an integrated structure, the brushless motor 200 and the PCB board 300 are connected to the shaft sleeve 501 of the mounting bracket 500, the bearing 600 is embedded in the through hole 502 of the shaft sleeve 501, the shaft sleeve 501 is coaxially connected with the rotating shaft 400 through the bearing 600 in the through hole 502, the shaft sleeve 501 of the mounting bracket 500 penetrates into the positioning hole 102, and the brushless motor 200 is arranged in the positioning hole 102. The mounting hole 503 of the mounting bracket 500 is designed to facilitate the fixed connection with the external connecting piece (air shell 3). When the brushless motor 200 is powered and driven, the rotating shaft 400 can drive the impeller 100 to rotate relative to the shaft sleeve 501. The mounting bracket 500 is arranged to facilitate the convenient installation of the air blower in the corresponding equipment or device, and the brushless motor 200 and the impeller 100 are integrated and installed through the mounting bracket 500, so as to form an integrated air blower. The brushless motor 200 and the impeller 100 can be pre-integrated and assembled together, and then installed in the corresponding use position through the mounting bracket 500, thereby improving the convenience of subsequent installation and maintenance and replacement.

[0041] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application is disclosed as above, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the present application, and any simple modification, equivalent change and modification of the above embodiment are within the scope of the present application.

Claims

1. An integrated blower comprising an impeller, a brushless motor for providing rotational power to the impeller, and a PCB board, characterized in that: The impeller is provided with a rotating shaft coaxially connected, one end of the rotating shaft is connected with the center of the impeller by injection molding, so that the rotating shaft and the impeller are integrally arranged, the other end of the rotating shaft extends outward, and the other end of the rotating shaft is provided with a mounting bracket coaxially connected, the brushless motor is sleeved on the mounting bracket and coaxially connected with the mounting bracket, the mounting bracket is coaxially connected with the rotating shaft through a bearing, and the mounting bracket is used for fixedly connecting with an external connecting piece.

2. The integrated blower of claim 1, wherein: The middle part of the impeller is formed with a protruding positioning ring, the positioning ring is formed with a positioning hole for accommodating the brushless motor, one end of the rotating shaft extends to the positioning hole and is coaxially arranged in the positioning hole.

3. The integrated blower of claim 2, wherein: The mounting bracket is formed with a shaft sleeve for mounting the brushless motor, the brushless motor is sleeved on the shaft sleeve and placed in the positioning hole, a PCB board is mounted on the shaft sleeve, and the PCB board is electrically connected with the brushless motor.

4. The integrated blower of claim 3, wherein: The inside of the shaft sleeve is formed with a through hole, a bearing is clamped and mounted in the through hole, both ends of the rotating shaft are respectively formed with a fixed end and a connecting end, the rotating shaft is fixedly connected with the impeller through the fixed end, the connecting end of the rotating shaft extends to the positioning hole and penetrates into the bearing in the through hole to be coaxially connected.

5. The integrated blower of any one of claims 1-4, wherein: The mounting bracket is provided with a mounting hole for fixed connection, a plurality of mounting holes are arranged on the mounting bracket.

6. The integrated blower of any one of claims 1-4, wherein: A plurality of groups of blades are connected to the impeller, and the blades are circumferentially distributed on the outer side of the impeller.

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