An outer rotor housing motor to prevent shaft loosening

Abstract

This utility model provides an external rotor housing motor for preventing shaft loosening, relating to the field of external rotor housings. It includes: an end cover one, a mounting base mounted on the top of the end cover one, an end cover two mounted on the top of the mounting base, a shaft body mounted on the inner wall of the mounting base, and a powder metallurgy insert fitted onto the surface of the shaft body, the surface of which is embedded in the inner wall of the end cover two. This utility model, by mounting the shaft body on the inner wall of the end cover two with the powder metallurgy insert, effectively prevents the shaft body from loosening. Furthermore, the protrusions mounted on the inner wall of the iron core match the grooves on the surface of the mounting base, ensuring that the protrusions are installed on the inner wall of the grooves when the iron core is mounted on the surface of the mounting base. During use, the device effectively resists radial forces, thereby preventing the iron core from shifting on the surface of the mounting base.

Description

Technical Field

[0001] This utility model relates to the field of external rotor housing technology, and in particular to an external rotor housing motor for preventing shaft loosening. Background Technology

[0002] The outer rotor housing is the outer shell assembly that encloses and supports the outer rotor in an outer rotor motor (a type of motor structure). The characteristic of an outer rotor motor is that the rotor rotates on the outside, so the housing directly participates in the rotational motion. This is significantly different from the housing function of an inner rotor motor (where the rotor is inside and the housing is fixed). It is commonly found in equipment such as fans and pumps that need to directly drive external loads. In existing technology, there is a risk of the internal shaft of an outer rotor motor becoming loose during use, affecting the motor's performance. Utility Model Content

[0003] The purpose of this invention is to provide an external rotor housing motor that prevents shaft loosening, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an external rotor housing motor for preventing shaft loosening, comprising: an end cover one, an mounting base installed on the top of the end cover one, an end cover two installed on the top of the mounting base, a shaft body installed on the inner wall of the mounting base, a powder metallurgy insert sleeved on the surface of the shaft body, and the surface of the powder metallurgy insert embedded in the inner wall of the end cover two.

[0005] In a preferred embodiment, a bearing is mounted on the inner wall of the mounting base, and the inner wall of the bearing is embedded in the surface of the shaft body.

[0006] In a preferred embodiment, the inner wall of the mounting base is provided with a mounting groove, and an O-ring is installed on the inner wall of the mounting groove.

[0007] In a preferred embodiment, an iron core is mounted on the surface of the mounting base, and two grooves are formed on the surface of the mounting base. Two protrusions are mounted on the inner wall of the iron core, and the protrusions match the grooves.

[0008] In a preferred embodiment, a bearing is installed on the inner wall of the end cap one, and the surface of the shaft body is embedded in the inner wall of the bearing two.

[0009] In a preferred embodiment, the inner wall of the first end cap is provided with a second mounting groove, and an elastic retaining ring is installed on the inner wall of the second mounting groove.

[0010] In a preferred embodiment, a wire groove is formed on the surface of the end cover, an electronic wire is installed on the inner wall of the wire groove, and a wire harness pressure plate is installed on the top of the end cover.

[0011] In a preferred embodiment, a housing is mounted on the top of the first end cover, and the top of the housing is mounted on the bottom of the second end cover.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the shaft body is installed on the inner wall of the bearing one installed on the inner wall of the mounting base, and the shaft body is installed on the inner wall of the bearing two installed on the inner wall of the end cover one, so that the shaft body can operate smoothly. The powder metallurgy insert installed on the surface of the shaft body is installed on the inner wall of the end cover two, so that the shaft body is installed in the form of an insert, which can effectively prevent the shaft body from loosening, making the device more perfect.

[0013] 2. In this utility model, two protrusions installed on the inner wall of the iron core match two grooves opened on the surface of the mounting base. When the iron core is installed on the surface of the mounting base, the protrusions are installed on the inner wall of the grooves, which can effectively resist the action of radial force and prevent the iron core from shifting on the surface of the mounting base, making the device more perfect. Attached Figure Description

[0014] Figure 1 A side view of an external rotor housing motor for preventing shaft loosening provided by this utility model; Figure 2 Bottom view of an external rotor housing motor for preventing shaft loosening provided by this utility model; Figure 3 Side view of a powder metallurgy insert for an external rotor housing motor to prevent shaft loosening, provided by this utility model; Figure 4 Side view of an O-ring rubber ring for an external rotor housing motor to prevent shaft loosening, provided by this utility model; Figure 5 A side view of an elastic retaining ring for an outer rotor housing motor designed to prevent shaft loosening, as provided in this utility model.

[0015] Legend: 1. End cover one; 101. Housing; 2. Mounting base; 3. End cover two; 4. Shaft body; 5. Powder metallurgy insert; 6. Bearing one; 7. Mounting groove one; 8. O-ring; 9. Iron core; 10. Groove; 11. Protrusion; 12. Bearing two; 13. Mounting groove two; 14. Elastic retaining ring; 15. Wire groove; 16. Electronic wire; 17. Wire harness pressure plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-5 This utility model provides a technical solution: an external rotor housing motor for preventing shaft loosening, comprising: end cover 1, an mounting base 2 installed on the top of end cover 1, an end cover 3 installed on the top of mounting base 2, a shaft body 4 installed on the inner wall of mounting base 2, a powder metallurgy insert 5 sleeved on the surface of shaft body 4, and the surface of the powder metallurgy insert 5 embedded in the inner wall of end cover 3.

[0018] Specifically: During the use of the device, the powder metallurgy insert 5 installed on the surface of the shaft body 4 is embedded in the inner wall of the end cover 3, so that the device uses an insert to install the shaft body 4, which can effectively prevent the shaft body 4 from loosening and make the device more perfect.

[0019] In one embodiment, a bearing 6 is installed on the inner wall of the mounting base 2, the inner wall of the bearing 6 is embedded in the surface of the shaft body 4, a mounting groove 7 is opened on the inner wall of the mounting base 2, and an O-ring 8 is installed on the inner wall of the mounting groove 7.

[0020] Specifically: The bearing 6 is installed on the inner wall of the mounting base 2, and the shaft body 4 is installed on the inner wall of the bearing 6, so that the shaft body 4 can operate better. The O-ring 8 is installed on the inner wall of the mounting groove 7 opened in the inner wall of the mounting base 2. The O-ring 8 is installed by the groove method, which eliminates the glue application process and makes the device more perfect.

[0021] In one embodiment, an iron core 9 is mounted on the surface of the mounting base 2, and two grooves 10 are formed on the surface of the mounting base 2. Two protrusions 11 are mounted on the inner wall of the iron core 9, and the protrusions 11 match the grooves 10.

[0022] Specifically: When the iron core 9 is installed on the surface of the mounting base 2, the two protrusions 11 installed on the inner wall of the iron core 9 match the two grooves 10 opened on the surface of the mounting base 2, so that when the iron core 9 is installed on the surface of the mounting base 2, the protrusions 11 are installed on the inner wall of the grooves 10, which can effectively resist the action of radial force, thereby preventing the iron core 9 from shifting on the surface of the mounting base 2, making the device more perfect.

[0023] In one embodiment, a bearing 12 is installed on the inner wall of the end cap 1, the surface of the shaft body 4 is embedded in the inner wall of the bearing 12, and an installation groove 13 is provided on the inner wall of the end cap 1. An elastic retaining ring 14 is installed on the inner wall of the installation groove 13.

[0024] Specifically: the bearing 12 is installed on the inner wall of the end cover 1, and the shaft body 4 is installed on the inner wall of the bearing 12, so that the shaft body 4 can operate better. The elastic retaining ring 14 is installed on the inner wall of the mounting groove 13 opened in the inner wall of the end cover 1 to block and restrict the bearing 12, which can effectively prevent the bearing 12 from shifting on the inner wall of the end cover 1, making the device more perfect.

[0025] In one embodiment, a wire groove 15 is formed on the surface of the end cap 1, an electronic wire 16 is installed on the inner wall of the wire groove 15, and a wire harness pressure plate 17 is installed on the top of the end cap 1.

[0026] Specifically: After the electronic wires 16 are arranged and placed on the inner wall of the wire groove 15 through the wire groove 15 opened on the surface of the end cover 1, the wire harness pressure plate 17 is covered on the top of the wire groove 15 by bolts to restrict the electronic wires 16. This can effectively prevent the electronic wires 16 from rubbing when the housing 101 rotates, prevent the electronic wires 16 from being damaged and short-circuited, and make the device more perfect.

[0027] In one embodiment, a housing 101 is mounted on the top of end cap 1, and the top of housing 101 is mounted on the bottom of end cap 3.

[0028] Specifically: The housing 101 installed between end cover 1 and end cover 3 protects the internal components of the device, making the device more complete.

[0029] Working Principle: During use, the shaft body 4 is installed on the inner walls of end cover 1, mounting base 2, and end cover 3. Powder metallurgy inserts 5 are embedded in the inner wall of end cover 3 via the surface of the shaft body 4, effectively preventing the shaft body 4 from loosening. The surface of the shaft body 4 is installed within the inner wall of bearing 6 mounted on the inner wall of mounting base 2. O-rings 8 are installed through the inner wall of mounting groove 7 on the inner wall of mounting base 2, eliminating the need for gluing. The surface of the shaft body 4 is installed within the inner wall of bearing 12 mounted on the inner wall of end cover 1. Elastic retaining rings 14 are installed through the inner wall of mounting groove 13 on the inner wall of end cover 1. By blocking and restricting the bearing 12, displacement of the bearing 12 on the inner wall of the end cover 1 can be effectively prevented, making the device more complete. When the iron core 9 is installed on the surface of the mounting base 2, the two protrusions 11 installed on the inner wall of the iron core 9 match the two grooves 10 opened on the surface of the mounting base 2, so that when the iron core 9 is installed on the surface of the mounting base 2, the protrusions 11 are installed on the inner wall of the grooves 10, which can effectively resist the action of radial force, thereby preventing the iron core 9 from shifting on the surface of the mounting base 2. During the use of the device, air enters through the hole on the end cover 1 and exits through the hole on the end cover 3. The air inlet and outlet are basically in a straight line, which can more effectively dissipate heat and has higher heat dissipation efficiency, making the device more complete.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An external rotor housing motor for preventing shaft loosening, characterized in that, include: End cap one (1), the top of the end cap one (1) is equipped with a mounting base (2), the top of the mounting base (2) is equipped with end cap two (3), the inner wall of the mounting base (2) is equipped with a shaft body (4), the surface of the shaft body (4) is fitted with a powder metallurgy insert (5), the surface of the powder metallurgy insert (5) is embedded in the inner wall of end cap two (3).

2. The external rotor housing motor for preventing shaft loosening according to claim 1, characterized in that: The inner wall of the mounting base (2) is fitted with a bearing (6), and the inner wall of the bearing (6) is embedded in the surface of the shaft body (4).

3. The external rotor housing motor for preventing shaft loosening according to claim 1, characterized in that: The inner wall of the mounting base (2) is provided with a mounting groove (7), and an O-ring (8) is installed on the inner wall of the mounting groove (7).

4. The external rotor housing motor for preventing shaft loosening according to claim 1, characterized in that: The mounting base (2) has an iron core (9) mounted on its surface. Two grooves (10) are formed on the surface of the mounting base (2). Two protrusions (11) are mounted on the inner wall of the iron core (9). The protrusions (11) and the grooves (10) are matched.

5. The external rotor housing motor for preventing shaft loosening according to claim 1, characterized in that: The inner wall of the end cap (1) is fitted with a bearing (12), and the surface of the shaft body (4) is embedded in the inner wall of the bearing (12).

6. The external rotor housing motor for preventing shaft loosening according to claim 1, characterized in that: The inner wall of the end cap (1) is provided with a mounting groove (13), and an elastic retaining ring (14) is installed on the inner wall of the mounting groove (13).

7. The external rotor housing motor for preventing shaft loosening according to claim 1, characterized in that: The surface of the end cap (1) is provided with a wire groove (15), the inner wall of the wire groove (15) is provided with an electronic wire (16), and the top of the end cap (1) is provided with a wire harness pressure plate (17).

8. The external rotor housing motor for preventing shaft loosening according to claim 1, characterized in that: The top of the first end cap (1) is fitted with a housing (101), and the top of the housing (101) is fitted with the bottom of the second end cap (3).

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