Sealed flat motor
Through the design of the clamping and extrusion seal structure, the problems of time-consuming and labor-intensive processing and high scrap rate of existing flat motors are solved, and rapid assembly and sealing are achieved, reducing the scrap rate of flat motors.
Patent Information
- Application Number
- CN202422567433.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-23
AI Technical Summary
The connection methods of existing flat motors are mostly welded, which leads to time-consuming and labor-intensive processing and high overall scrap rate when components are damaged.
The clamping and extrusion sealing structure is adopted, and the upper cover is initially fixed through the clamping structure, combined with the extrusion sealing structure to achieve rapid assembly, and allows parts to be replaced on the basis of sealing to reduce the scrap rate.
Fast assembly and sealing are achieved, reducing the scrap rate of flat motors, improving machining efficiency and maintainability of components.
Smart Images
Figure CN223285666U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flat motors, in particular to a sealed flat motor. Background Art
[0002] The market share of mobile terminals in electronic devices is constantly expanding. Mobile terminals must have vibration effects. Corresponding vibration motors have become indispensable components of mobile terminals, and their market share is also constantly increasing.
[0003] However, the flat motors in the prior art still have many shortcomings, and most of the connection methods of the flat motors in the prior art are welding, which is time-consuming and labor-intensive during the processing. When the internal components of the flat motor are damaged, the entire motor will be scrapped, increasing the scrap rate. For this reason, we propose a sealed flat motor. Utility Model Content
[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a sealed flat motor.
[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a sealed flat motor, comprising a mounting shell, which is a circular box, with an upper cover clamped on the top of the mounting shell, a flexible circuit board arranged on the inner bottom side of the mounting shell, a fixed magnet arranged on the top of the flexible circuit board in the interior of the mounting shell, a brush arranged on the inside of the flexible circuit board corresponding to the magnet, a movable deflection disk arranged on the top of the interior of the mounting shell corresponding to the magnet, a commutator arranged on the bottom side of the deflection disk corresponding to the position of the brush, a coil arranged on the upper side of the deflection disk, a mounting post fixedly mounted on the inner bottom side of the mounting shell, the deflection disk movably mounted on the mounting post, a third mounting cavity being opened on the upper end of the mounting post, a clamping structure arranged inside the third mounting cavity, an extrusion sealing structure cooperating with the clamping structure being arranged between the mounting shell and the upper cover, and a vibration structure cooperating with the rotating deflection disk being arranged on the side of the mounting shell.
[0006] Preferably, the extrusion sealing structure includes a second installation cavity opened at the upper end of the installation shell, a sealing ring is provided inside the second installation cavity, and a pressure block is fixedly installed at the lower end of the upper cover corresponding to the position of the second installation cavity.
[0007] Preferably, the snap-fit structure includes an adapter column fixedly mounted on the lower end of the upper cover, the adapter column movably mounted inside the third mounting cavity, a convex ring fixedly mounted below the adapter column corresponding to the interior of the third mounting cavity, the convex ring having a triangular cross-section and a ring block, connecting elastic rods are equidistantly mounted on the bottom side of the adapter column, a buckle is fixedly mounted on the lower end of the connecting elastic rod corresponding to the position of the third mounting cavity, and the buckle is snap-fitted to the bottom of the convex ring.
[0008] Preferably, the vibration structure includes a mounting block fixedly mounted on the outside of the mounting shell, a first mounting cavity is opened on the inner side of the mounting shell corresponding to the position of the mounting block, a movable protrusion is movably installed inside the first mounting cavity, a spring is fixedly mounted on one end of the movable protrusion corresponding to the first mounting cavity, and the end of the spring away from the movable protrusion is fixedly mounted on the inner side of the mounting block.
[0009] Preferably, a circular hole is provided on the deflection disk at a position corresponding to the mounting post, and the diameter of the circular hole on the deflection disk is 1.5 times the diameter of the mounting post.
[0010] Preferably, there are at least two connecting elastic rods, the buckle is a right-angled trapezoidal block, the second installation cavity is a circular ring, and the sealing ring is an annular rubber ring adapted to the second installation cavity.
[0011] Beneficial effects
[0012] The utility model provides a sealed flat motor with the following beneficial effects:
[0013] (1) In the sealed flat motor, when the upper cover is clamped on the top of the mounting shell, the upper cover is initially fixed by the clamping structure. By squeezing the sealing structure, a force is formed between the mounting shell and the upper cover to separate from each other. After the mounting shell and the upper cover are clamped, a sealing operation is performed. On the basis of achieving sealing, rapid assembly is achieved, thereby improving the assembly speed. When the internal components of the flat motor are damaged, the parts can be replaced to reduce the scrap rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.
[0015] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a partial cross-sectional view of the utility model;
[0018] Figure 3 This is a partial sectional view of the installation shell of the utility model.
[0019] Legend:
[0020] 1. Mounting shell; 2. Upper cover; 4. Flexible circuit board; 5. Magnet; 6. Brush; 7. Deflection plate; 8. Coil; 9. Mounting block; 10. First mounting cavity; 11. Moving protrusion; 12. Spring; 13. Second mounting cavity; 14. Pressing block; 15. Sealing ring; 16. Mounting column; 17. Third mounting cavity; 18. Adapter column; 19. Raised ring; 20. Connecting elastic rod; 21. Buckle. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0022] Embodiment: A sealed flat motor, such as Figure 1 - Figure 3As shown, it includes a mounting shell 1, which is a circular box. An upper cover 2 is clamped on the top of the mounting shell 1, a flexible circuit board 4 is provided on the bottom side of the inner part of the mounting shell 1, a fixed magnet 5 is provided on the upper side of the mounting shell 1 corresponding to the flexible circuit board 4, a brush 6 is provided on the flexible circuit board 4 corresponding to the magnet 5, a movable deflection disk 7 is provided on the upper side of the mounting shell 1 corresponding to the magnet 5, a commutator is provided on the bottom side of the deflection disk 7 corresponding to the position of the brush 6, a coil 8 is provided on the upper side of the deflection disk 7, a mounting post 16 is fixedly installed on the bottom side of the inner part of the mounting shell 1, the deflection disk 7 is movably mounted on the mounting post 16, a circular hole is provided on the position corresponding to the mounting post 16, the diameter of the circular hole on the deflection disk 7 is 1.5 times the diameter of the mounting post 16, a third mounting cavity 17 is provided on the upper end of the mounting post 16, a clamping structure is provided inside the third mounting cavity 17, an extrusion sealing structure that cooperates with the clamping structure is provided between the mounting shell 1 and the upper cover 2, and the extrusion sealing structure is provided between the mounting shell 1 and the upper cover 2. The sealing structure includes a second mounting cavity 13 opened at the upper end of the mounting shell 1, and a sealing ring 15 is arranged inside the second mounting cavity 13. A pressure block 14 is fixedly installed at the lower end of the upper cover 2 corresponding to the position of the second mounting cavity 13. The upper cover 2 moves downward with the pressure block 14. When the pressure block 14 moves downward inside the second mounting cavity 13, it squeezes the sealing ring 15 to achieve sealing. A vibration structure that cooperates with the rotating deflection disk 7 is provided on the side of the mounting shell 1. The flexible circuit board 4 is energized so that the brush 6 contacts the commutator on the bottom side of the deflection disk 7 to rotate the deflection disk 7. When the deflection disk 7 rotates, it contacts the vibration structure and vibrates. When the upper cover 2 is stuck on the top of the mounting shell 1, the upper cover 2 is preliminarily fixed by the clamping structure. By squeezing the sealing structure, a force away from each other is formed between the mounting shell 1 and the upper cover 2, so that the sealing operation is performed after the mounting shell 1 and the upper cover 2 are clamped. On the basis of achieving sealing, fast assembly is achieved and the assembly speed is improved.
[0023] The clamping structure includes an adapter column 18 fixedly mounted on the lower end of the upper cover 2, and the adapter column 18 is movably mounted inside the third mounting cavity 17. A convex ring 19 is fixedly mounted on the inside of the third mounting cavity 17 corresponding to the lower side of the adapter column 18. The convex ring 19 has a triangular cross-section and is an annular block. A connecting elastic rod 20 is equidistantly mounted on the bottom side of the adapter column 18. A clip 21 is fixedly mounted on the lower end of the connecting elastic rod 20 corresponding to the position of the third mounting cavity 17. The clip 21 is clamped on the bottom end of the convex ring 19. There are at least two connecting elastic rods 20, and the clip 21 is a right-angled trapezoidal block. The second mounting cavity 13 is a circular ring, and the sealing ring 15 is an annular rubber ring that is adapted to the second mounting cavity 13. The adapter column 18 drives the connecting elastic rod 20 to move downward, and the connecting elastic rod 20 carries the clip 21. After the clip 21 contacts the convex ring 19, it drives the connecting elastic rod 20 to deform, and the clip 21 continues to move downward to the convex ring 19 The elastic rod 20 connected to the bottom side is elastically reset so that the buckle 21 is stuck in the lower end of the convex ring 19. At this time, the sealing ring 15 squeezes the pressure block 14 upward, and the pressure block 14 drives the upper cover 2 upward. The upper cover 2 is constrained by the convex ring 19 to tighten the upper cover 2 to lock it. The vibration structure includes a mounting block 9 fixedly mounted on the outer side of the mounting shell 1, and a first mounting cavity 10 is opened on the inner side of the mounting shell 1 corresponding to the position of the mounting block 9. A moving protrusion 11 is movably installed inside the first mounting cavity 10, and a spring 12 is fixedly installed on one end of the moving protrusion 11 corresponding to the first mounting cavity 10. The end of the spring 12 away from the moving protrusion 11 is fixed on the inner side of the mounting block 9. When the deflection disk 7 rotates, it will collide with the moving protrusion 11, and the moving protrusion 11 moves inside the first mounting cavity 10. The moving protrusion 11 is displaced while colliding to generate greater vibration and increase the vibration frequency.
[0024] The working principle of this utility model:
[0025] When in use, the flexible circuit board 4 is energized, so that the brush 6 contacts the commutator on the bottom side of the deflection disk 7 to rotate the deflection disk 7. The deflection disk 7 contacts the vibration structure during rotation and vibrates. When the upper cover 2 is clamped on the upper part of the mounting shell 1, the upper cover 2 is initially fixed by the clamping structure. By squeezing the sealing structure, a force is formed between the mounting shell 1 and the upper cover 2 to separate from each other. After the mounting shell 1 and the upper cover 2 are clamped together, a sealing operation is performed. The upper cover 2 moves downward with the pressing block 14. When the pressing block 14 moves downward inside the second mounting cavity 13, it squeezes the sealing ring 15 to achieve sealing. The adapter column 18 drives the connecting elastic rod 20 to move downward. The connecting elastic rod 20 carries a buckle 21. After the buckle 21 contacts the convex ring 19, the connecting elastic rod 20 is deformed. After the buckle 21 continues to move downward to the bottom side of the convex ring 19, the connecting elastic rod 20 elastically resets so that the buckle 21 is stuck at the lower end of the convex ring 19. At this time, the sealing ring 15 squeezes the pressure block 14 upward, and the pressure block 14 drives the upper cover 2 upward. The upper cover 2 is constrained by the convex ring 19 to tighten the upper cover 2 and lock it. When the deflection disk 7 rotates, it will collide with the moving protrusion 11, and the moving protrusion 11 moves inside the first mounting cavity 10. The moving protrusion 11 is displaced while colliding to generate greater vibration and increase the vibration frequency.
[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.
Claims
1. A sealed flat motor, comprising a mounting shell (1), wherein the mounting shell (1) is a circular box, and an upper cover (2) is clamped on the upper side of the mounting shell (1), characterized in that: A flexible circuit board (4) is provided on the bottom side of the interior of the mounting shell (1), a fixed magnet (5) is provided on the interior of the mounting shell (1) corresponding to the upper side of the flexible circuit board (4), a brush (6) is provided on the interior of the flexible circuit board (4) corresponding to the magnet (5), a movable deflection disk (7) is provided on the interior of the mounting shell (1) corresponding to the upper side of the magnet (5), a commutator is provided on the bottom side of the deflection disk (7) corresponding to the position of the brush (6), a coil (8) is provided on the upper side of the deflection disk (7), a mounting post (16) is fixedly installed on the bottom side of the interior of the mounting shell (1), the deflection disk (7) is movably installed on the mounting post (16), a third mounting cavity (17) is provided on the upper end of the mounting post (16), a clamping structure is provided inside the third mounting cavity (17), an extrusion sealing structure that cooperates with the clamping structure is provided between the mounting shell (1) and the upper cover (2), and a vibration structure that cooperates with the rotating deflection disk (7) is provided on the side of the mounting shell (1).
2. The sealed flat motor according to claim 1, characterized in that: The extrusion sealing structure comprises a second mounting cavity (13) opened at the upper end of the mounting shell (1), a sealing ring (15) is provided inside the second mounting cavity (13), and a pressing block (14) is fixedly installed at the position of the lower end of the upper cover (2) corresponding to the second mounting cavity (13).
3. The sealed flat motor according to claim 2, characterized in that: The clamping structure comprises an adapter column (18) fixedly mounted on the lower end of the upper cover (2), the adapter column (18) being movably mounted inside the third mounting cavity (17), a convex ring (19) being fixedly mounted inside the third mounting cavity (17) below the adapter column (18), the convex ring (19) having a triangular cross-section, connecting elastic rods (20) being equidistantly mounted on the bottom side of the adapter column (18), a buckle (21) being fixedly mounted at the lower end of the connecting elastic rod (20) corresponding to the position of the third mounting cavity (17), and the buckle (21) being clamped to the bottom end of the convex ring (19).
4. The sealed flat motor according to claim 3, characterized in that: The vibration structure includes a mounting block (9) fixedly mounted on the outside of the mounting shell (1); a first mounting cavity (10) is provided on the inside of the mounting shell (1) at a position corresponding to the mounting block (9); a moving protrusion (11) is movably mounted inside the first mounting cavity (10); a spring (12) is fixedly mounted on one end of the moving protrusion (11) corresponding to the first mounting cavity (10); and an end of the spring (12) away from the moving protrusion (11) is fixedly mounted on the inside of the mounting block (9).
5. The sealed flat motor according to claim 4, characterized in that: A circular hole is provided on the deflection disc (7) at a position corresponding to the mounting post (16), and the diameter of the circular hole on the deflection disc (7) is 1.5 times the diameter of the mounting post (16).
6. The sealed flat motor according to claim 5, characterized in that: There are at least two connecting elastic rods (20), the buckle (21) is a right-angled trapezoidal block, the second installation cavity (13) is a circular ring, and the sealing ring (15) is an annular rubber ring adapted to the second installation cavity (13).