Motor with simple structure

Abstract

The utility model relates to a motor, in particular to a motor with a simple structure, which comprises a stator, an accommodating cavity for mounting a rotor is arranged in the middle of the stator, a fixed shaft is fixedly arranged in the accommodating cavity, and one end of the fixed shaft extends to the outer side of the accommodating cavity; the rotor is rotatably inserted on the fixed shaft and can rotate along the fixed shaft, and the rotor comprises an output end extending out of the accommodating cavity and a magnetic shaft end accommodated in the accommodating cavity; and the shell is fixedly arranged on the stator in a sleeving manner, the output end penetrates through the shell and extends to the outer side of the shell, and a shell limiting part used for limiting the rotor from sliding out of the fixed shaft is arranged on the inner side of the shell. The utility model has the advantages of simple structure, reasonable design, low manufacturing cost, light weight and convenience in assembly, and is worthy of vigorous popularization and application.

Description

Technical Field

[0001] This utility model relates to an electric motor, specifically a simple electric motor. Background Technology

[0002] With the rapid development of new energy vehicles, vehicle control is becoming increasingly electronic and centralized, reducing the number of traditional mechanical control buttons. For example, air conditioning vents now feature electrically controlled airflow direction. These vents eliminate the traditional manual adjustment knobs, replacing them with actuators that adjust the internal dampers and blades. Electric vents not only allow for direct voice control of the airflow direction but also simulate natural airflow, improving passenger comfort. Furthermore, electric vents can be concealed, significantly increasing the design space available for the vehicle's dashboard.

[0003] The main internal component of an electric air vent actuator is the motor. Currently, commercially available motors for electric air vents typically incorporate bearings for stable rotation, making them relatively bulky and increasing the overall weight of the vehicle. Furthermore, the motor rotor is usually made of metal, resulting in high costs. Additionally, the bearing assembly process is relatively complex and expensive. To reduce costs, the inventor designed a motor with a simplified structure. Utility Model Content

[0004] The purpose of this utility model is to provide a motor with a simple structure, which has the advantages of simple structure, reasonable design, low cost, light weight and convenient assembly, thus solving the problems mentioned in the above technical background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a simple motor, comprising: a stator, wherein a receiving cavity for mounting a rotor is provided in the middle of the stator, a fixed shaft is fixedly disposed in the receiving cavity, one end of the fixed shaft extends to the outside of the receiving cavity; a rotor, wherein the rotor is rotatably inserted into the fixed shaft and can rotate along the fixed shaft, the rotor including an output end extending out of the receiving cavity and a magnetic shaft end disposed in the receiving cavity; and a housing, wherein the housing is sleeved and fixed on the stator, the output end passes through the housing and extends to the outside of the housing, and a housing limiting part is provided on the inner side of the housing to prevent the rotor from sliding out of the fixed shaft.

[0006] Preferably, the motor further includes a magnet, which is sleeved on the end of the magnetic shaft, and the inner walls of both the upper and lower ends of the magnet are provided with a first limiting step. Multiple limiting protrusions are provided on the first limiting step along its circumference, and each limiting protrusion engages with a limiting groove on the end of the magnetic shaft.

[0007] Preferably, the outer wall of the stator is provided with a plurality of winding positions for winding coils, the plurality of winding positions are distributed at intervals along the length direction of the stator, and each winding position is provided with a magnetic coil seat, the magnetic coil seat penetrates the outer shell from the inside to the outside and extends to the outside of the outer shell, and a stator limiting part is provided inside the stator to limit the displacement of the rotor.

[0008] Preferably, the magnetic coil holder has a coil hole for the coil head to pass through, and there are multiple coil holes, which are distributed in a straight line on the magnetic coil holder.

[0009] Preferably, the stator limiting part includes a base body and a boss provided on the base body. A protruding shaft is provided on the boss, and a blind hole is opened on the central axis of the protruding shaft. The blind hole extends into the boss and is connected to a fixed shaft. A second limiting step is formed between the boss and the protruding shaft. The protruding shaft is inserted into the rotor and the rotor is limited by the second limiting step. An annular groove is opened on the base body in the circumferential direction of the boss.

[0010] Preferably, the rotor is made of plastic material and has an internally hollow cavity structure.

[0011] Preferably, a gear is provided on the output end, and the gear is integrally injection molded with the output end.

[0012] Preferably, the magnetic shaft end has a hollow hole at the connection point at the output end, and the bottom of the magnetic shaft end has a recessed groove that matches the protruding shaft, so that the magnetic shaft end can make a circular motion along the protruding shaft under the action of external force.

[0013] Preferably, the outer shell limiting part includes a U-shaped groove, and multiple U-shaped grooves are provided. The multiple U-shaped grooves are evenly distributed along the circumferential direction of the through hole on the outer shell. Each U-shaped groove is provided with a limiting plate, and the limiting plate is provided with a protruding limiting block. The limiting blocks form a limiting ring at the end of the limiting magnetic shaft.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model provides a simple motor structure, which includes a stator, a rotor, a magnet, and a housing. The stator has a cavity in the middle for mounting the rotor, and a fixed shaft is fixedly installed in the cavity. The rotor is rotatably inserted into the fixed shaft and can rotate along the fixed shaft. The housing is sleeved and fixed on the stator. The overall structure is simple and reasonably designed. By providing a housing limiting part on the inside of the housing to prevent the rotor from sliding out of the fixed shaft, and providing a stator limiting part in the stator to limit the rotor displacement, the two ends of the rotor are limited by the housing limiting part and the stator limiting part, respectively, replacing the traditional bearing limiting rotation. It has low cost, light weight, and is easy to assemble, making it highly practical.

[0016] 2. The rotor in this utility model is made of plastic material and has a hollow cavity structure, which can reduce the weight of the rotor and reduce the cost. A gear is provided on the output end of the rotor. The gear is integrally injection molded with the output end, which is also to reduce costs and improve the efficiency of injection molding. By setting a hollow hole at the connection point of the magnetic shaft at the output end, the weight of the rotor can be reduced. Attached Figure Description

[0017] Figure 1 This is an exploded view of the present invention;

[0018] Figure 2 This is an overall structural diagram of the present invention;

[0019] Figure 3 This utility model Figure 2 Sectional view of AA;

[0020] Figure 4 This utility model Figure 3 Enlarged view of A in the middle;

[0021] Figure 5 This utility model Figure 3 Enlarged view of B in the middle;

[0022] Figure 6 This is one of the structural diagrams of the rotor of this utility model;

[0023] Figure 7 This is the second structural diagram of the rotor of this utility model;

[0024] Figure 8 This is a structural diagram of the magnet of this utility model;

[0025] Figure 9 This is a structural diagram of the outer shell of this utility model.

[0026] The reference numerals and names in the figure are as follows:

[0027] 1. Stator; 11. Receiving cavity; 12. Fixed shaft; 13. Winding position; 14. Magnetic coil seat; 15. Coil hole; 16. Stator limiting part; 161. Base body; 162. Boss; 163. Protruding shaft; 164. Blind hole; 165. Second limiting step; 166. Annular groove; 2. Rotor; 21. Output end; 22. Magnetic shaft end; 23. Limiting groove; 24. Gear; 25. Hollow hole; 26. Sinking groove; 3. Magnet; 31. First limiting step; 32. Limiting protrusion; 4. Outer shell; 41. Outer shell limiting part; 411. U-shaped groove; 412. Limiting plate; 413. Limiting block; 414. Limiting ring; 42. Through hole. Detailed Implementation

[0028] 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.

[0029] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of 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 or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0030] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0031] Please seeFigures 1 to 9 This utility model provides an embodiment of a simple motor, comprising: a stator 1, a rotor 2, a magnet 3, and a housing 4. The stator 1 has a cavity 11 for mounting the rotor 2. A fixed shaft 12 is fixedly mounted within the cavity 11, with one end of the fixed shaft 12 extending to the outside of the cavity 11. The rotor 2 is rotatably mounted on the fixed shaft 12 and can rotate along the fixed shaft 12. The rotor 2 includes an output end 21 extending out of the cavity 11 and a magnetic shaft end 22 housed within the cavity 11. The magnet 3 is sleeved on the magnetic shaft 4. On the shaft end 22, and on the inner walls of both the upper and lower ends of the magnet 3, a first limiting step 31 is provided. On the first limiting step 31, a plurality of limiting protrusions 32 are provided along its circumferential direction. Each limiting protrusion 32 engages with the limiting groove 23 on the magnetic shaft end 22. The outer shell 4 is sleeved and fixed on the stator 1. The output end 21 passes through the outer shell 4 and extends to the outside of the outer shell 4. The inner side of the outer shell 4 is provided with an outer shell limiting part 41 for limiting the rotor 2 from sliding out of the fixed shaft 12. The rotor 2 can be limited during the rotation process by the outer shell limiting part 41.

[0032] Specifically, the outer wall of the stator 1 is provided with a plurality of winding positions 13 for winding coils. The plurality of winding positions 13 are distributed at intervals along the length direction of the stator 1. Each winding position 13 is provided with a magnetic coil seat 14. The magnetic coil seat 14 penetrates the outer shell 4 from the inside out and extends to the outside of the outer shell 4. The magnetic coil seat 14 is provided with a coil hole 15 for the coil head to pass through. There are a plurality of coil holes 15, which are distributed at intervals in a straight line on the magnetic coil seat 14. The stator 1 is provided with a stator limiting part 16 to limit the displacement of the rotor 2.

[0033] More specifically, the stator limiting part 16 includes a base body 161 and a boss 162 provided on the base body 161. A protruding shaft 163 is provided on the boss 162, and a blind hole 164 is opened on the central axis of the protruding shaft 163. The blind hole 164 extends into the boss 162 and is connected to the fixed shaft 12. A second limiting step 165 is formed between the boss 162 and the protruding shaft 163. The protruding shaft 163 is inserted into the rotor 2, and the rotor 2 is limited by the second limiting step 165. An annular groove 166 is opened on the base body 161 in the circumferential direction of the boss 162. The annular groove 166 can reduce the contact surface with the rotor 2, reduce the friction between the stator 1 and the rotor 2, and make the rotor 2 more labor-saving during rotation, which is highly practical.

[0034] Specifically, the rotor 2 is made of plastic material and has a hollow cavity structure. Using plastic material facilitates the processing of the rotor 2 and reduces its weight. Compared with traditional metal rotors, the manufacturing cost is lower. Since the motor in this invention is used in the car air vent to automatically open the car air vent, the frequency of use is low. Using plastic material can greatly reduce the car manufacturing cost and also facilitates assembly, making it highly practical.

[0035] Specifically, a gear 24 is provided on the output end 21. The gear 24 is integrally injection molded with the output end 21. The gear 24 is formed by injection molding, which results in low manufacturing cost.

[0036] Specifically, a hollow hole 25 is provided at the connection point of the output end 21 on the magnetic shaft end 22. The hollow hole 25 can reduce the weight of the rotor 2, reduce costs, and save materials. A recessed groove 26 adapted to the protruding shaft 163 is provided at the bottom of the magnetic shaft end 22. Under the action of external force, the magnetic shaft end 22 can make a circular motion along the protruding shaft 163.

[0037] Specifically, the outer shell limiting part 41 includes a U-shaped groove 411, and multiple U-shaped grooves 411 are provided. The multiple U-shaped grooves 411 are evenly distributed along the circumferential direction of the through hole 42 on the outer shell 4. Each U-shaped groove 411 is provided with a limiting plate 412. The limiting plate 412 is provided with a protruding limiting block 413. The limiting block 413 surrounds the limiting ring 414 of the limiting magnetic shaft end 22. When the rotor 2 rotates, it is limited by the limiting ring 414.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A simple electric motor, characterized in that: include: The stator (1) has a cavity (11) in the middle for mounting the rotor (2), and a fixed shaft (12) is fixedly installed in the cavity (11), with one end of the fixed shaft (12) extending to the outside of the cavity (11). The rotor (2) is rotatably inserted into the fixed shaft (12) and can rotate along the fixed shaft (12). The rotor (2) includes an output end (21) extending out of the receiving cavity (11) and a magnetic shaft end (22) received in the receiving cavity (11). The outer casing (4) is fitted and fixed on the stator (1). The output end (21) passes through the outer casing (4) and extends to the outside of the outer casing (4). The inner side of the outer casing (4) is provided with a casing limiting part (41) for limiting the rotor (2) from sliding out of the fixed shaft (12).

2. The simple-structured motor according to claim 1, characterized in that: It also includes a magnet (3), which is sleeved on the magnetic shaft end (22), and the inner walls of the upper and lower ends of the magnet (3) are provided with a first limiting step (31). Multiple limiting protrusions (32) are provided on the first limiting step (31) along its circumferential direction, and each limiting protrusion (32) engages with the limiting groove (23) on the magnetic shaft end (22).

3. The simple-structured motor according to claim 1, characterized in that: The stator (1) has a plurality of winding positions (13) for winding coils on its outer wall. The plurality of winding positions (13) are distributed at intervals along the length direction of the stator (1). Each winding position (13) is provided with a magnetic coil seat (14). The magnetic coil seat (14) penetrates the outer shell (4) from the inside to the outside and extends to the outside of the outer shell (4). The stator (1) is provided with a stator limiting part (16) to limit the displacement of the rotor (2).

4. A simple-structured motor according to claim 3, characterized in that: The magnetic coil holder (14) has a coil hole (15) for the coil head to pass through. There are multiple coil holes (15), which are distributed in a line shape on the magnetic coil holder (14).

5. A simple-structured motor according to claim 3, characterized in that: The stator limiting part (16) includes a base body (161) and a boss (162) provided on the base body (161). A protruding shaft (163) is provided on the boss (162). A blind hole (164) is provided on the central axis of the protruding shaft (163). The blind hole (164) extends into the boss (162). The blind hole (164) is connected to the fixed shaft (12). A second limiting step (165) is formed between the boss (162) and the protruding shaft (163). The protruding shaft (163) is inserted into the rotor (2) and the rotor (2) is limited by the second limiting step (165). An annular groove (166) is provided on the base body (161) in the circumferential direction of the boss (162).

6. A simple-structured motor according to claim 1, characterized in that: The rotor (2) is made of plastic material and has a hollow cavity structure.

7. A simple-structured motor according to claim 1, characterized in that: A gear (24) is provided on the output end (21), and the gear (24) is integrally injection molded with the output end (21).

8. A simple-structured motor according to claim 1, characterized in that: The magnetic shaft end (22) is provided with a hollow hole (25) at the connection of the output end (21), and the bottom of the magnetic shaft end (22) is provided with a recessed groove (26) that is compatible with the protruding shaft (163). The magnetic shaft end (22) can make a circular motion along the protruding shaft (163) under the action of external force.

9. A simple-structured motor according to claim 1, characterized in that: The outer shell limiting part (41) includes a U-shaped groove (411), and multiple U-shaped grooves (411) are provided. The multiple U-shaped grooves (411) are evenly distributed along the circumferential direction of the through hole (42) on the outer shell (4). Each U-shaped groove (411) is provided with a limiting plate (412). The limiting plate (412) is provided with a protruding limiting block (413). The limiting block (413) surrounds the limiting ring (414) of the limiting magnetic shaft end (22).

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