Centrifugal fan motor with easy installation

Abstract

The application discloses an easy-to-install centrifugal wind wheel motor and belongs to the centrifugal wind wheel motor field. The centrifugal wind wheel motor comprises a shell and a motor body. The outer side of the shell is rotationally installed with a centrifugal wind wheel body. The inner wall of the centrifugal wind wheel body is installed with an injection sealing stator. The inner wall of the shell is fixedly installed with a mounting bracket. The inner wall of the mounting bracket is rotationally connected with a connecting shaft. The inner wall of the motor body power output shaft is inserted with a hexagonal column. The outer side of the motor body is fixedly installed with three supporting rods. The side, away from the centrifugal wind wheel body, of the shell is fixedly installed with three mounting structures. The injection sealing stator can effectively isolate the impurities from the outside, prolong the service life of the motor body. The mounting structure cooperated with the supporting rods can conveniently realize the installation and positioning of the motor body, save the installation time, improve the efficiency, and do not need to use more auxiliary tools.

Description

Technical Field

[0001] This application relates to the field of centrifugal fan motor technology, and in particular to an easy-to-install centrifugal fan motor. Background Technology

[0002] Currently, fresh air systems utilize patented fresh air convection technology. Through autonomous air supply and exhaust, indoor air is convected, maximizing indoor air replacement. The fresh air unit has a built-in multi-functional purification system to ensure clean and healthy air entering the room. The centrifugal fan used in the fresh air system converts mechanical energy into kinetic and pressure energy of gas through a high-speed rotating impeller. It consists of an impeller, volute, air inlet and outlet, motor, bearings, and support. During operation, gas enters the impeller center axially from the fan. The impeller blades drive the gas to rotate at high speed. Under the action of centrifugal force, the gas is thrown to the outer edge of the impeller, significantly increasing its kinetic energy and pressure. The high-speed gas enters the volute-shaped channel, where its speed decreases, and its kinetic energy is further converted into static pressure energy. The high-pressure gas is discharged through the air outlet, completing the transportation or pressurization process.

[0003] However, in order to facilitate installation, the centrifugal fans in existing fresh air systems mostly adopt an internal rotor motor drive structure, which results in a large overall size of the centrifugal fan due to the large volume of the internal rotor motor structure, making it unsuitable for installation layout in narrow spaces. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides an easy-to-install centrifugal fan motor, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.

[0005] To achieve the above objectives, this application adopts the following technical solution: an easy-to-install centrifugal impeller motor, comprising a housing and a motor body, wherein a centrifugal impeller body is rotatably mounted on the outer side of the housing, an injection-molded sealed stator is mounted on the inner wall of the centrifugal impeller body, a mounting bracket is fixedly mounted on the inner wall of the housing, a connecting shaft is rotatably connected to the inner wall of the mounting bracket, a hexagonal column is inserted into the inner wall of the power output shaft of the motor body, three support rods are fixedly mounted on the outer side of the motor body, and three mounting structures are fixedly mounted on the side of the housing away from the centrifugal impeller body.

[0006] By adopting the above technical solution and setting an injection-molded sealed stator, external impurities can be effectively isolated, thereby improving the service life of the motor body.

[0007] In a preferred embodiment, the mounting structure includes a frame fixedly mounted on the outer wall of the housing, a square groove is provided on the inner wall of the frame, a pin is slidably connected to the inner wall of the frame, a movable plate is slidably mounted on the inner wall of the square groove, and a return spring is fixedly connected to one side of the movable plate.

[0008] By adopting the above technical solution, the elastic thrust of the return spring can be used to push the moving plate to stably fit against the inner wall of the square groove, thereby achieving the positioning of the pin and ensuring that it will not slide or shift at will.

[0009] In a preferred embodiment, a pull plate is fixedly installed on the outer side of the pin, the movable plate is fixedly installed on the outer edge of the pin, and the pin passes through the inner wall of the return spring.

[0010] By adopting the above technical solution, it is easy for the user to pull the pin to move it on the inner wall of the frame. When the pin moves, it can drive the moving plate to move synchronously, thereby squeezing the return spring into a stressed state, and the pin can be moved away from the position of the end of the pulling plate.

[0011] In a preferred embodiment, the bottom of the support rod is inserted into the inner wall of the frame, and the end of the pin away from the pull plate is inserted into the inner wall of the support rod.

[0012] By adopting the above technical solution, the bottom end of the support rod can be stably positioned on the inner wall of the frame using a pin, thereby enabling quick installation and positioning of the motor body and ensuring the speed of installation.

[0013] In a preferred embodiment, a positioning ear is fixedly installed on the outer side of the housing, and a positioning hole is provided on the inner wall of the positioning ear.

[0014] By adopting the above technical solution, it is easy to install the casing to any location of use by using bolts.

[0015] In a preferred embodiment, the inner walls of both the connecting shaft and the motor body power output shaft are provided with hexagonal holes adapted to the shape of the hexagonal prism, and the two ends of the hexagonal prism are respectively adapted to be inserted into the inner walls of the two hexagonal holes.

[0016] By adopting the above technical solution, the power of the motor body output shaft rotation can be conveniently transmitted to the connecting shaft, thereby driving the centrifugal impeller body to rotate.

[0017] In a preferred embodiment, the inner wall of the mounting bracket is fixedly connected to the outer ring of the bearing, the outer edge of the connecting shaft is fixedly connected to the inner ring of the bearing, and the end of the connecting shaft away from the hexagonal column is fixedly connected to the centrifugal impeller body.

[0018] By adopting the above technical solution, the stability of the connecting shaft during rotation can be guaranteed, and it will not easily shift or wobble during rotation, thus preventing interference with the mounting bracket.

[0019] The beneficial effects of this application are: This easy-to-install centrifugal fan motor effectively isolates external impurities by setting an injection-molded sealed stator, thus extending the service life of the motor body. Furthermore, the designed installation structure, in conjunction with the support rod, facilitates convenient installation and positioning of the motor body, saving installation time, improving efficiency, and requiring minimal auxiliary tools. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the rear view structure of this application; Figure 3 This is a schematic diagram of the centrifugal impeller body structure of this application; Figure 4 This is a schematic diagram of the motor body structure of this application; Figure 5 For the purposes of this application Figure 4 Enlarged cross-sectional view of point A in the middle.

[0021] The following are the labeling elements in the diagram: 1. Outer shell; 2. Centrifugal impeller body; 3. Injection-molded sealed stator; 4. Positioning ear; 5. Mounting bracket; 6. Connecting shaft; 7. Motor body; 8. Hexagonal column; 9. Support rod; 10. Mounting structure; 1001. Frame; 1002. Square groove; 1003. Pin; 1004. Moving plate; 1005. Return spring; 1006. Pull plate. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0023] Reference Figure 1-5 An easy-to-install centrifugal impeller motor includes a housing 1 and a motor body 7. A centrifugal impeller body 2 is rotatably mounted on the outer side of the housing 1. An outer rotor motor is mounted on the inner wall of the centrifugal impeller body 2. The outer rotor motor includes a rotor magnetic ring and an injection-molded sealed stator 3. A mounting bracket 5 is fixedly mounted on the inner wall of the housing 1. A connecting shaft 6 is rotatably connected to the inner wall of the mounting bracket 5. A hexagonal column 8 is inserted into the inner wall of the power output shaft of the motor body 7. Three support rods 9 are fixedly mounted on the outer side of the motor body 7. Three mounting structures 10 are fixedly mounted on the side of the housing 1 away from the centrifugal impeller body 2. By setting the injection-molded sealed stator 3, external impurities can be effectively isolated, thereby improving the service life of the motor body 7.

[0024] Specifically, the rotor magnetic ring is fixed in a ring shape to the inner wall of one side of the centrifugal impeller body 2, while the injection-molded sealed stator 3 is movably connected to the inner side of the rotor magnetic ring through a magnetic levitation air gap connection, and the air gap between the two is 0.2-2mm. In this embodiment, the internal core of the injection-molded sealed stator 3 has a twelve-slot ten-pole or twelve-slot fourteen-pole structure.

[0025] See Figure 4 and Figure 5 The mounting structure 10 includes a frame 1001 fixedly mounted on the outer wall of the outer casing 1. A square groove 1002 is provided on the inner wall of the frame 1001. A pin 1003 is slidably connected to the inner wall of the frame 1001. A movable plate 1004 is slidably mounted on the inner wall of the square groove 1002. A return spring 1005 is fixedly connected to one side of the movable plate 1004, so that the movable plate 1004 can be stably attached to the inner wall of the square groove 1002 by means of the elastic thrust of the return spring 1005, thereby realizing the positioning of the pin 1003 and ensuring that it will not slide or shift at will.

[0026] See Figure 5 A pull plate 1006 is fixedly installed on the outer side of the pin 1003, and a moving plate 1004 is fixedly installed on the outer edge of the pin 1003. The pin 1003 passes through the inner wall of the return spring 1005. The pull plate 1006 makes it easy for the user to pull the pin 1003 to move within the inner wall of the frame 1001. When the pin 1003 moves, it can drive the moving plate 1004 to move synchronously, thereby squeezing the return spring 1005 into a stressed state. The pin 1003 can also be moved away from the position of the end of the pull plate 1006.

[0027] See Figure 4 and Figure 5 The bottom of the support rod 9 is inserted into the inner wall of the frame 1001, and the end of the pin 1003 away from the pull plate 1006 is inserted into the inner wall of the support rod 9. This allows the bottom of the support rod 9 to be stably positioned on the inner wall of the frame 1001 by using the pin 1003, thereby enabling quick installation and positioning of the motor body 7 and ensuring quick installation.

[0028] See Figure 1 and Figure 2 The outer side of the outer shell 1 is fixedly installed with a positioning ear 4, and the inner wall of the positioning ear 4 is provided with a positioning hole, which makes it easy to install the outer shell 1 to any place of use with bolts.

[0029] See Figure 3 and Figure 4The inner walls of both the connecting shaft 6 and the power output shaft of the motor body 7 are provided with hexagonal holes that are adapted to the shape of the hexagonal column 8. The two ends of the hexagonal column 8 are respectively adapted to be inserted into the inner walls of the two hexagonal holes, so that the power of the output shaft of the motor body 7 can be easily transmitted to the connecting shaft 6, thereby driving the centrifugal impeller body 2 to rotate.

[0030] See Figure 3 The inner wall of the mounting bracket 5 is fixedly connected to the outer ring of the bearing, and the outer edge of the connecting shaft 6 is fixedly connected to the inner ring of the bearing. The end of the connecting shaft 6 away from the hexagonal column 8 is fixedly connected to the centrifugal impeller body 2, which ensures the stability of the connecting shaft 6 during rotation and prevents it from easily shifting or swaying in position during rotation, thus preventing interference between it and the mounting bracket 5.

[0031] Working principle: When using this device, firstly, pull the pull plate 1006 to move the pin 1003 until one end of the pin 1003 away from the pull plate 1006 disengages from the inner wall of the frame 1001. Then, take the motor body 7 and insert the other end of its output shaft into the inner wall of the hexagonal column 8 and into the inner wall of the connecting shaft 6. Then, release the pull plate 1006 and use the elastic force of the return spring 1005 to push the pin 1003 into the inner wall of the support rod 9 to achieve the positioning of the support rod 9. Then, the motor body 7 can be installed. Drive the motor body 7 to drive the hexagonal column 8 and the connecting shaft 6 to rotate, which in turn drives the centrifugal impeller body 2 to rotate.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. An easy-to-install centrifugal fan motor, comprising a housing (1) and a motor body (7), characterized in that, The outer side of the outer shell (1) is rotatably mounted with a centrifugal impeller body (2), the inner wall of the centrifugal impeller body (2) is mounted with an injection-molded sealing stator (3), the inner wall of the outer shell (1) is fixedly mounted with a mounting bracket (5), the inner wall of the mounting bracket (5) is rotatably connected with a connecting shaft (6), the inner wall of the power output shaft of the motor body (7) is inserted with a hexagonal column (8), the outer side of the motor body (7) is fixedly mounted with three support rods (9), and the side of the outer shell (1) away from the centrifugal impeller body (2) is fixedly mounted with three mounting structures (10).

2. The easily installed centrifugal fan motor according to claim 1, characterized in that, The mounting structure (10) includes a frame (1001) fixedly mounted on the outer wall of the outer shell (1). The inner wall of the frame (1001) is provided with a square groove (1002). A pin (1003) is slidably connected to the inner wall of the frame (1001). A movable plate (1004) is slidably mounted on the inner wall of the square groove (1002). A return spring (1005) is fixedly connected to one side of the movable plate (1004).

3. The easily installed centrifugal fan motor according to claim 2, characterized in that, A pull plate (1006) is fixedly installed on the outside of the pin (1003), and a moving plate (1004) is fixedly installed on the outer edge of the pin (1003). The pin (1003) passes through the inner wall of the return spring (1005).

4. The easily installed centrifugal fan motor according to claim 2, characterized in that, The bottom of the support rod (9) is inserted into the inner wall of the frame (1001), and the end of the pin (1003) away from the pull plate (1006) is inserted into the inner wall of the support rod (9).

5. The easily installed centrifugal fan motor according to claim 1, characterized in that, The outer side of the outer shell (1) is fixedly installed with a positioning ear (4), and the inner wall of the positioning ear (4) is provided with a positioning hole.

6. The easily installed centrifugal fan motor according to claim 1, characterized in that, The inner walls of the connecting shaft (6) and the power output shaft of the motor body (7) are provided with hexagonal holes that are adapted to the shape of the hexagonal column (8). The two ends of the hexagonal column (8) are respectively adapted to be inserted into the inner walls of the two hexagonal holes.

7. The easily installed centrifugal fan motor according to claim 1, characterized in that, The inner wall of the mounting bracket (5) is fixedly connected to the outer ring of the bearing, the outer edge of the connecting shaft (6) is fixedly connected to the inner ring of the bearing, and the end of the connecting shaft (6) away from the hexagonal column (8) is fixedly connected to the centrifugal impeller body (2).

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