Oscillator rotor

Abstract

The utility model discloses an oscillator rotor which comprises an oscillation frame and a permanent magnet which are integrated, and the permanent magnet drives the oscillation frame to linearly oscillate under the action of magnetic force of a stator unit. The driving frame is made of a metal material and is fixed on the oscillation frame; and the elastic connecting piece is used for hanging or supporting and connecting the driving frame. According to the utility model, the driving frame made of a metal material is adopted, so that the overall structure of the oscillator rotor is firmer, stress caused by high-frequency vibration can be effectively resisted, the damage risk caused by material fatigue is reduced, and the reliability of a product is improved; the oscillating frame and the driving frame are formed through insert injection molding, so that the structural design is simplified, the manufacturing complexity is reduced, vibration and noise are reduced, and the overall stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a personal care small household appliance and motor technical field, concretely relates to a vibrator rotor. BACKGROUND

[0002] Patent document CN220754621U discloses a linear motor of electric clipper, its main structure includes the stator assembly that is composed of mountain type iron core and coil, and the rotor assembly that is composed of fixed cover, swing frame, left permanent magnet, right permanent magnet, left elastic sheet and right elastic sheet. Among them, the swing frame is designed as an integrated drive arm and swing arm structure, the left permanent magnet and the right permanent magnet are fixed below the drive arm, and are opposite to the stator assembly and the polarity. The fixed cover is located above the swing frame, and the left and right sides of the drive arm are suspendedly connected with the fixed cover through the left elastic sheet and the right elastic sheet.

[0003] The linear motor has multiple advantages, such as stable structure, low noise and easy to realize high-frequency vibration. However, the swing frame structure is relatively complex, usually made of plastic material, although it is convenient to form and light in weight, but it has defects in mechanical properties, especially the drive arm part is directly connected with the left and right elastic sheets, under the action of high-frequency alternating force for a long time, it is easy to be damaged, thereby reducing the reliability of the product. Therefore, it is necessary to optimize and improve the structure of the swing frame and the rotor assembly to improve the mechanical properties and overall reliability. SUMMARY

[0004] In order to improve the reliability of the linear oscillator, the utility model provides a vibrator rotor.

[0005] The technical scheme adopted by the utility model is as follows: a vibrator rotor, comprising: an integrated oscillation frame and permanent magnet, the permanent magnet is driven by the magnetic force of the stator unit to drive the oscillation frame to linearly oscillate; a drive frame of metal material is fixed on the oscillation frame; an elastic connecting piece is used for suspending or supporting the connection of the drive frame.

[0006] Preferably, the oscillation frame is injection molded with the drive frame as an insert.

[0007] Preferably, the drive frame is a door-shaped frame structure, which is divided into a connecting plate and two side legs, the connecting plate is injection molded with the oscillation frame as a whole, and the lower end of the side leg is suspendedly connected with the elastic connecting piece.

[0008] Preferably, the connecting plate is provided with a clamping part extending into the interior of the oscillation frame, the clamping part and the connecting plate maintain an acute angle, and the end of the clamping part has an enlarged part.

[0009] Preferably, a vacancy area is provided on the connecting plate for injection filling of the oscillation frame.

[0010] Preferably, the oscillating frame forms two buckles on the side facing the stator unit, the buckles extending out of the lower surface of the connecting plate, the permanent magnet is clamped between the two buckles and is attached to the connecting plate.

[0011] Preferably, the oscillating frame forms a limiting column on the side facing the stator unit, and the limiting hole on the permanent magnet is inserted and matched.

[0012] Preferably, the permanent magnet has an upwardly inserted part, and the oscillating frame is correspondingly provided with an insertion hole.

[0013] Preferably, the oscillator rotor has two groups of permanent magnets arranged in parallel and having opposite polarities, only one group of the oscillating frame outputs power to the outside; and a balance rocker is hinged to the bracket through a center shaft at the middle and hinged to the shoulder parts of the two oscillating frames through end shafts at both ends.

[0014] Preferably, the elastic connecting piece is a laminated multi-layer elastic sheet structure.

[0015] The utility model has the advantages that: the utility model discloses a driving frame made of metal material, so that the overall structure of the oscillator rotor is more solid, can effectively resist the stress caused by high-frequency vibration, reduces the damage risk caused by material fatigue, and improves the reliability of the product. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the utility model embodiment.

[0017] Figure 2 It is an explosion schematic view of the single-group oscillator rotor in the utility model embodiment.

[0018] Figure 3 It is a schematic view of the oscillating frame in the utility model embodiment.

[0019] Figure 4 It is a schematic view of the elastic connecting piece in the utility model embodiment.

[0020] Oscillating frame 1, buckle 101, limiting column 102, insertion hole 103;

[0021] Permanent magnet 2, limiting hole 201, insertion part 202;

[0022] Driving frame 3, connecting plate 301, leg 302, clamping part 303, amplification part 304, vacancy area 305;

[0023] Elastic connecting piece 4;

[0024] Balance rocker arm 5;

[0025] Central axis 6;

[0026] End shaft 7. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the embodiments and drawings.

[0028] In the embodiment, Figures 1-4 The figure shows an oscillator mover, comprising: an integrated oscillation frame 1 and permanent magnet 2. The permanent magnet 2, under the magnetic force of the stator unit, drives the oscillation frame 1 into linear oscillation; a metal drive frame 3 fixed to the oscillation frame 1; and elastic connectors 4 for suspending or supporting the drive frame 3. The use of a metal drive frame 3 in this embodiment strengthens the overall structure of the oscillator mover, effectively resisting the stress caused by high-frequency vibration, reducing the risk of damage due to material fatigue, and improving product reliability.

[0029] In the embodiment, Figure 2 As shown, the oscillation frame 1 is injection molded with the drive frame 3 as an insert. This embodiment requires that the mechanical properties of the drive frame 3 material be superior to those of the oscillation frame 1. Therefore, the oscillation frame 1 is constructed of plastic, while the drive frame 3 is constructed of metal. Plastic reduces overall weight and facilitates molding, while metal offers greater rigidity and fatigue resistance, achieving both lightweight and reliability. While the two can be integrated using threaded connections or other methods, injection molding the oscillation frame 1 with the drive frame 3 as an insert is a more practical option. This injection molding process not only simplifies the structural design and reduces manufacturing complexity, but also helps reduce vibration and noise, improving overall stability.

[0030] In the embodiment, Figure 2 As shown, the drive frame 3 has a gate-shaped frame structure, consisting of a connecting plate 301 and two supporting legs 302 on either side. The connecting plate 301 is integrally injection-molded with the oscillation frame 1, and the lower ends of the supporting legs 302 are suspended from the elastic connector 4. In this embodiment, the connecting plate 301 is used to connect to the oscillation frame 1, and the support provided by the supporting legs 302 maintains a stable state of motion. The gate-shaped frame structure of the drive frame 3 enhances its overall rigidity, strength, and mechanical properties. When subjected to vibration and impact, it can effectively disperse stress and reduce local deformation, thereby improving durability and reliability.

[0031] In the embodiment, Figure 2As shown, the connecting plate 301 is provided with a clamping portion 303 extending into the interior of the oscillating frame 1, the clamping portion 303 and the connecting plate 301 form an acute angle, and the end of the clamping portion 303 is provided with an enlarged portion 304. The clamping portion 303 and the enlarged portion 304 of the connecting plate 301 can effectively fix the connection between the oscillating frame 1 and the driving frame 3, prevent loosening under high-frequency vibration, and the acute angle of the clamping portion 303 helps to enhance the fixing effect and ensure the reliability during long-term use.

[0032] In the embodiment, as shown in Figure 2 , the connecting plate 301 is provided with a hollow area 305 for injection molding of the oscillating frame 1. The hollow area 305 on the connecting plate 301 allows better filling of the material during injection molding, ensuring uniformity and strength distribution. This design reduces stress concentration caused by uneven injection molding, improves overall structural strength, and helps improve the performance and durability of the oscillator rotor.

[0033] In the embodiment, as shown in Figure 2 , Figure 3 , the oscillating frame 1 is formed with two buckles 101 on the side facing the stator unit, the buckles 101 extend out of the lower surface of the connecting plate 301, and the permanent magnet 2 is clamped between the two buckles 101 and abuts the connecting plate 301. The design of the buckles 101 makes it easier to install the permanent magnet 2 during assembly, and the design of the left and right buckles 101 helps to firmly fix the position of the permanent magnet 2 on the oscillating frame 1, avoiding displacement of the magnet under high-frequency vibration. This fixing method ensures stable connection between the permanent magnet 2 and the oscillating frame 1, improving reliability.

[0034] In the embodiment, as shown in Figure 2 , Figure 3 , the oscillating frame 1 is formed with a limiting column 102 on the side facing the stator unit, which is inserted into the limiting hole 201 on the permanent magnet 2; the permanent magnet 2 has an upward insertion portion 202, and the oscillating frame 1 is correspondingly provided with an insertion hole 103. This embodiment optimizes the limiting design and insertion structure to improve the assembly stability of the permanent magnet 2 and the oscillating frame 1, which is also beneficial for reducing vibration and convenient assembly.

[0035] In the embodiment, as shown in Figure 1As shown, the oscillator mover has two groups of front and rear parallel and opposite polarity of permanent magnet 2, only one group of oscillation frame 1 to the outside power output; also includes a balance rocker 5, the middle part is hinged to the support through the center shaft 6, both ends are hinged to the two oscillation frame 1 shoulder on the same side through the end shaft 7. The embodiment adopts the structure of the double-mover assembly 1 of staggered oscillation, the two groups of mover assembly 1 are under the action of the electromagnetic force of the stator unit 2, and present the opposite staggered oscillation of left and right directions. Through the action of the balance rocker 107, the linkage of the two groups of mover assembly 1 is realized. The structure of the double-mover assembly B can improve the running stability of the moving knife 301, and improve the efficiency and reduce the energy consumption to a certain extent.

[0036] In the embodiment, as shown in Figure 1 、 The elastic connecting piece 4 is a laminated multi-layer elastic sheet structure, as shown in Figure 4 The design of the multi-layer elastic sheet makes the elastic connecting piece 4 have higher elasticity and adaptability, can better and uniformly distribute the force transmission, effectively absorb the vibration generated in the transmission process, reduce the efficiency loss caused by uneven stress of a single connecting point. Moreover, the multi-layer structure also enhances the durability of the elastic connecting piece 4, so that it is not easy to fatigue or fail in a long time of use, prolonging the service life.

[0037] Obviously, the above embodiments of the utility model are only for illustration, and are not limited to the embodiments of the utility model. Other obvious changes or variations derived from the essential spirit of the utility model still belong to the protection scope of the utility model.

Claims

1. An oscillator mover characterized by, The utility model relates to a linear vibration motor, comprising: An integrated oscillating frame (1) and a permanent magnet (2), the permanent magnet (2) drives the oscillating frame (1) to make linear oscillation under the magnetic force action of a stator unit; A driving frame (3) of metal material is fixed on the oscillating frame (1); An elastic connecting piece (4) is used for suspending or supporting the driving frame (3).

2. The oscillator motor according to claim 1, characterized in that The oscillating frame (1) is injection molded with the driving frame (3) as an insert.

3. The oscillator motor according to claim 2, characterized in that The driving frame (3) is a door-shaped frame structure, divided into a connecting plate (301) and two side legs (302), the connecting plate (301) is injection molded with the oscillating frame (1) as a whole, and the lower end of the side leg (302) is suspendedly connected with the elastic connecting piece (4).

4. The oscillator motor of claim 3, wherein The connecting plate (301) is provided with a clamping part (303) extending into the interior of the oscillating frame (1), the clamping part (303) and the connecting plate (301) keep an acute angle, and the end of the clamping part (303) has an enlarged part (304).

5. The oscillator motor of claim 3, wherein The connecting plate (301) is provided with a vacancy area (305) for injection filling of the oscillating frame (1).

6. The oscillator motor of claim 3, wherein The oscillating frame (1) is provided with two buckles (101) on the side facing the stator unit, the buckles (101) extend out of the lower surface of the connecting plate (301), the permanent magnet (2) is clamped between the two buckles (101) and is attached to the connecting plate (301).

7. The oscillator motor of claim 6, wherein The oscillating frame (1) is provided with a limiting column (102) on the side facing the stator unit, and the limiting column (102) is inserted into the limiting hole (201) on the permanent magnet (2) in a matched mode.

8. The oscillator motor of claim 6, wherein, The permanent magnet (2) has an upward insertion part (202), and the oscillating frame (1) is correspondingly provided with an insertion hole (103).

9. The oscillator motor of claim 1, wherein Two groups of the permanent magnets (2) are provided in front and back parallel modes and have opposite polarities, only one group of the oscillating frames (1) outputs power to the outside, further comprising a balance rocker arm (5) hinged to a support through a center shaft (6) in the middle and hinged to the same side shoulder of two oscillating frames (1) through end shafts (7) at two ends.

10. The oscillator motor of claim 1, wherein The elastic connecting piece (4) is a laminated multi-layer elastic sheet structure.

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