Damping linear motor with protection structure

Abstract

The utility model relates to a damping linear motor with a protection structure. The damping linear motor comprises a stator, a mover and a U-shaped elastic damping member connecting the stator and the mover. The stator comprises a coil, a base and a bracket; the rotor comprises a magnetic circuit, a mass block and a cover plate; the cover plate is arranged above the magnetic circuit, and the end part of the cover plate is provided with a buckle with a bending structure; a clamping groove is formed in the position, corresponding to the buckle with the bent structure, of the support. The buckle is arranged in the middle of the clamping groove in an interference fit mode, and meanwhile a certain non-contact gap is formed between the buckle and the support. According to the utility model, the adsorbed displacement of the magnetic circuit can be effectively limited, so that the adhesive glue between the U-shaped elastic damping piece and the magnetic circuit or the bracket is prevented from being damaged due to overlarge displacement.

Description

Technical Field

[0001] The utility model relates to the technical field of linear motors, in particular to a damping linear motor with a protection structure. Background Art

[0002] Current touchscreen consumer electronics, such as mobile phones, PADs, and handheld game consoles, often utilize linear motors for vibration and tactile feedback. U-shaped damped linear motors are a commonly used linear motor component due to their simple structure, minimal footprint, and wide operating frequency band.

[0003] However, the rigidity of the U-shaped elastic damping part of the U-shaped damping linear motor is limited, and the magnetic circuit has suction. Therefore, if magnetic metal is encountered during the assembly process, there is a risk that the magnetic circuit will attract the metal and cause the glue of the damping part to separate. Utility Model Content

[0004] The technical problem to be solved by the present invention is: to provide a damping linear motor with a protective structure, which can effectively limit the adsorbed displacement of the magnetic circuit when magnetic metal is accidentally adsorbed to the magnetic circuit, thereby preventing the adhesive glue between the U-shaped elastic damping part and the magnetic circuit or bracket from being damaged due to excessive displacement.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a damping linear motor with a protective structure, comprising a stator, a mover and a U-shaped elastic damping part connecting the stator and the mover; the stator comprises a coil, a base and a bracket; the mover comprises a magnetic circuit, a mass block and a cover plate; the cover plate is arranged above the magnetic circuit, and a buckle with a bending structure is provided at the end of the cover plate; a slot is provided on the bracket at a position corresponding to the buckle with the bending structure; the buckle is arranged in the middle of the slot by interference fit, and a certain non-contact gap is provided between the buckle and the bracket.

[0006] Furthermore, the buckle described in the present invention is a metal buckle; the bending direction of the buckle is the outer side of the cover plate; the buckle has a vertical section and a horizontal section, and the horizontal section is located in the middle of the slot after assembly and does not contact the slot.

[0007] Furthermore, the top of the slot of the present invention is a notch, and the edge of the notch is provided with a downward chamfer.

[0008] Furthermore, both ends of the cover plate described in the present invention are provided with buckles; and there are two buckles at each end.

[0009] The beneficial effect of the present invention is that it solves the defects existing in the background technology. By designing a clip with a bending structure on the magnetic circuit cover plate and setting a slot at the corresponding position of the bracket, the magnetic circuit clip is accurately placed in the middle of the bracket slot by using an interference fit method, while ensuring that a certain non-contact gap is maintained between the bracket, but it can prevent falling off after assembly; the structural design of this solution is sophisticated and does not require additional space resources for the magnetic circuit; in the production process, the U-shaped damping part and the bracket can be glued and assembled at the same time, and the clip can be easily embedded in the bracket without adding additional assembly steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural diagram of the utility model;

[0011] Figure 2 This is a rendering of the utility model after assembly;

[0012] In the figure: 1. stator; 2. mover; 3. U-shaped elastic damping member; 4. bracket; 5. cover; 6. buckle; 7. slot; 8. vertical section; 9. horizontal section; 10. notch; 11. chamfer. DETAILED DESCRIPTION

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show components related to the present invention.

[0014] like Figure 1-Figure 2 A damped linear motor with a protective structure shown includes a stator 1, a mover 2, and a U-shaped elastic damping member 3 connecting the stator 1 and the mover 2; the stator 1 includes a coil, a base, and a bracket 4; the mover 2 includes a magnetic circuit, a mass block, and a cover plate 5.

[0015] A cover plate 5 is positioned above the magnetic circuit. A bent clip 6 is installed at the end of the cover plate 5. To improve assembly precision, two clips 6 are installed at each end. These clips 6 are metal and bend outward from the cover plate 5. They have a vertical section 8 and a horizontal section 9. The horizontal section 9 is positioned in the center of the slot 7 through an interference fit. After assembly, a certain non-contact gap exists between the clip 6 and the bracket 4 to prevent vibration from hitting the bracket and causing noise.

[0016] A slot 7 is provided on the bracket 4 at a position corresponding to the buckle 6 with a bent structure; the top of the slot 7 is a notch 10 , and the edge of the notch 10 is provided with a downward chamfer 11 .

[0017] During assembly, the magnetic circuit clip 6 is precisely positioned in the center of the slot 7 of the bracket 4. The interference fit ensures a tight connection between the clip 6 and the slot 7, while maintaining a certain non-contact gap to prevent it from falling out. If magnetic metal is accidentally attracted to the magnetic circuit, the curved structure of the clip 6 effectively limits the displacement of the mover 2, thereby preventing damage to the adhesive bonding between the U-shaped elastic damper 3, the mover 2, and the bracket 4 due to excessive displacement.

[0018] The above description only describes the specific implementation methods of the utility model. Various examples do not limit the essential content of the utility model. Ordinary technicians in the relevant technical field can make modifications or deformations to the specific implementation methods described above after reading the description without departing from the essence and scope of the utility model.

Claims

1. A damping linear motor with a protective structure, comprising a stator (1), a mover (2), and a U-shaped elastic damping member (3) connecting the stator (1) and the mover (2); the stator (1) comprising a coil, a base, and a bracket (4); the mover (2) comprising a magnetic circuit, a mass block, and a cover plate (5); characterized in that: The cover plate (5) is arranged above the magnetic circuit, and a buckle (6) with a bent structure is provided at the end of the cover plate (5); a slot (7) is provided on the bracket (4) at a position corresponding to the buckle (6) with the bent structure; the buckle (6) is arranged in the middle of the slot (7) through interference fit, and a certain non-contact gap is provided between the buckle (6) and the bracket (4).

2. The damped linear motor with a protective structure according to claim 1, wherein: The buckle (6) is a metal buckle (6); the bending direction of the buckle (6) is the outer side of the cover plate (5); the buckle (6) has a vertical section (8) and a horizontal section (9); the horizontal section (9) is located in the middle of the slot (7) after assembly and does not contact the slot (7).

3. The damped linear motor with a protective structure according to claim 1, wherein: The top of the slot (7) is a notch (10), and the edge of the notch (10) is provided with a downward chamfer (11).

4. The damped linear motor with a protective structure according to claim 1, wherein: Both ends of the cover plate (5) are provided with buckles (6); and two buckles (6) are provided at each end.

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