U-shaped damping linear motor with protection structure

Abstract

The utility model relates to a U-shaped damping linear motor with a protection structure. The U-shaped 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. During assembly, the buckle is arranged in the middle of the clamping groove through the metal pressing plate. 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 U-shaped damping linear motor with a protective 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 U-shaped 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 bonding 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 U-shaped 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; during assembly, the buckle is arranged in the middle of the slot through a metal pressure plate.

[0006] Furthermore, the metal pressure plate of the present invention is provided with a positioning hole, and the bracket is provided with a positioning column. The metal pressure plate is sleeved on the positioning column through the positioning hole and then fixed to the bracket by hot riveting.

[0007] 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.

[0008] Furthermore, both ends of the cover plate described in the present invention are provided with buckles; there are two buckles at each end; and the positioning posts are distributed on the upper side of the slots.

[0009] The beneficial effect of the present invention is that it solves the defects existing in the background technology. A snap with a bending structure is designed for the magnetic circuit part, and a notch is set at the corresponding position of the bracket; the metal pressure plate is precisely assembled using positioning columns, and the metal pressure plate is firmly fixed to the bracket through a hot riveting process; when magnetic metal is accidentally adsorbed to the magnetic circuit, the adsorbed displacement of the magnetic circuit can be effectively limited, thereby preventing the bonding glue between the U-shaped elastic damping part and the magnetic circuit or the bracket from being damaged due to excessive displacement; the structural design of this scheme is both strong and ingenious, and the precision requirements for components are relatively loose. 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 plate; 6. buckle; 7. slot; 8. vertical section; 9. horizontal section; 10. metal pressure plate; 11. positioning column. 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 U-shaped damping 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] The cover plate 5 is arranged above the magnetic circuit, and the end of the cover plate 5 is provided with a buckle 6 with a bending structure; buckles 6 are provided at both ends of the cover plate 5; there are two buckles 6 at each end; the buckle 6 is a metal buckle 6; the bending direction of the buckle 6 is the outside of the cover plate 5; the buckle 6 has a vertical section 8 and a horizontal section 9, and the horizontal section 9 is located in the middle of the slot 7 after assembly and does not contact the slot 7. The purpose of this is to avoid hitting the bracket and making noise during vibration.

[0016] A slot 7 is provided on the bracket 4 at a position corresponding to the buckle 6 with a bent structure; during assembly, the buckle 6 is arranged in the middle of the slot 7 through a metal pressing plate 10 .

[0017] The metal pressing plate 10 is provided with a positioning hole, and the bracket 4 is provided with a positioning post 11, which is distributed on the upper side of the slot 7. The metal pressing plate 10 is sleeved on the positioning post 11 through the positioning hole and then fixed to the bracket 4 by hot riveting.

[0018] During assembly, the magnetic circuit clip 6 is precisely placed within the slot 7. The metal pressure plate 10 is then precisely assembled using the positioning posts 11 and securely fastened to the bracket 4 body via a hot riveting process. A certain non-contact gap is maintained between the clip 6 and the slot 7 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 its displacement, preventing damage to the adhesive bonding between the U-shaped elastic damping member 3 and the magnetic circuit or bracket 4 due to excessive displacement.

[0019] The structural design of this solution is both robust and ingenious, with relatively loose requirements on component precision. Despite the addition of a metal pressure plate and hot riveting process, its structure is more reliable in preventing magnetic material adsorption.

[0020] 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 U-shaped 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 bending 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 bending structure; during assembly, the buckle (6) is arranged in the middle of the slot (7) through a metal pressure plate (10).

2. The U-shaped damped linear motor with a protective structure according to claim 1, wherein: The metal pressing plate (10) is provided with a positioning hole, and the bracket (4) is provided with a positioning column (11). The metal pressing plate (10) is sleeved on the positioning column (11) through the positioning hole and then fixed to the bracket (4) by hot riveting.

3. The U-shaped 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).

4. The U-shaped damped linear motor with a protective structure according to claim 2, wherein: Both ends of the cover plate (5) are provided with buckles (6); two buckles (6) are provided at each end; and the positioning columns (11) are distributed above and on the sides of the clamping slots (7).

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