Novel linear vibration motor
By introducing a spring structure and a compact housing design into the linear vibration motor, the wear problem caused by the contact between the mover and the housing is solved, resulting in more stable vibration and extended service life.
Patent Information
- Application Number
- CN202423041071.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-09
AI Technical Summary
In existing linear vibration motors, the mover comes into direct contact with the motor housing during long-term linear reciprocating motion, resulting in reduced service life and decreased vibration stability.
The spring structure prevents the oscillator from directly contacting the inner wall of the upper housing during linear reciprocating motion, and all components are contained within the lower and upper housings, forming a compact structure.
It reduces wear on the inner wall of the upper housing, reduces noise, extends service life, and makes the motor work more stably in a smaller space.
Smart Images
Figure CN223567497U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of vibration motor, specifically a new linear vibration motor. BACKGROUND
[0002] Linear vibration motor is a kind of device that can directly convert electric energy into linear mechanical energy, usually use it to realize high-precision linear motion control, however, with the continuous upgrading of electronic products, the performance demand of linear vibration motor is also constantly improved.
[0003] The existing linear vibration motor usually includes a movable mover and a fixed stator, the mover interacts with the stator by electromagnetic force or piezoelectric force, so that the mover reciprocates linearly, and in this process, the two ends of the mover directly contact with the inner wall of the shell of the motor, thereby realizing the vibration of the motor.
[0004] The existing linear vibration motor still has some problems in actual use, in the process of long-time linear reciprocation, the mover directly contacts with the shell of the motor, which reduces its service life, and also causes wear to the shell of the motor, resulting in reduced stability of the motor vibration.
[0005] Therefore, the utility model provides a new linear vibration motor. UTILITY MODEL CONTENTS
[0006] In order to make up for the deficiencies of the prior art, solve at least one technical problem proposed in the background art.
[0007] The utility model solves the technical scheme that the utility model discloses a new linear vibration motor, including lower casing, the lower casing top fixedly connected with F-PCB, the F-PCB top fixedly connected with coil, the F-PCB top slidingly provided with vibrator, the vibrator inside fixedly connected with YOKE, the YOKE inside fixedly connected with magnetic steel, the vibrator top is provided with upper casing, and the upper casing bottom is fixedly connected with the lower casing top, one end of the vibrator is fixedly connected with spring, the other end of the spring is fixed in the upper casing one side surface and penetrates, and the spring is symmetrically arranged.
[0008] As a further scheme of the utility model, the shape of the lower casing is adapted to the shape of the F-PCB.
[0009] As a further scheme of the utility model, there is an electrical connection relationship between the F-PCB and the coil.
[0010] As a further scheme of the utility model, the coil is provided with two, the magnetic steel is provided with two, the magnetic steel is located above the coil, each coil corresponds to a magnetic steel, and the coil and the magnetic steel are not in contact.
[0011] As a further scheme of the utility model, the YOKE is located in the middle of the vibrator.
[0012] As a further scheme of the utility model, the lower casing is composed of a large rectangular plate and a small rectangular plate, and the large rectangular plate is matched with the bottom shape of the upper casing.
[0013] The utility model has the advantages as follows:
[0014] 1. The utility model discloses a spring makes the vibrator not directly contact with the inner wall of the upper casing in the process of linear reciprocating motion, reduces the abrasion of the inner wall of the upper casing, makes the vibration more stable, reduces the noise generated when the existing linear vibration motor works, prolongs the service life of the linear vibration motor.
[0015] 2. The utility model discloses a lower casing and upper casing contain all components of the linear vibration motor inside, make the internal space of the linear vibration motor more compact, make the space occupied by the linear vibration motor smaller simultaneously, can work in smaller space. BRIEF DESCRIPTION OF DRAWINGS
[0016] The utility model will be further described below in combination with the drawings.
[0017] Figure 1 It is the overall device elevation schematic view of the utility model;
[0018] Figure 2 It is the right view schematic view of the overall device of the utility model;
[0019] Figure 3 It is the overall device overhead schematic view of the utility model;
[0020] Figure 4 It is the overall device explosion schematic view of the utility model.
[0021] Fig. 1, lower casing;2, F-PCB;3, coil;4, YOKE;5, magnetic steel;6, vibrator;7, upper casing;8, spring. DETAILED DESCRIPTION
[0022] In order to make the technical means, creation characteristics, purposes and effects of the utility model easy to understand, the utility model will be further described below in combination with specific embodiments.
[0023] Embodiment one
[0024] As Figures 1 to 4As shown in the utility model embodiment, the linear vibration motor comprises a lower casing 1, the lower casing 1 is fixedly connected with an F-PCB 2 at the top, the F-PCB 2 is fixedly connected with a coil 3 at the top, a vibrator 6 is slidably arranged at the top of the F-PCB 2, the vibrator 6 is fixedly connected with a YOKE 4 inside, the YOKE 4 is fixedly connected with a magnetic steel 5 inside, an upper casing 7 is arranged above the vibrator 6, the upper casing 7 is fixedly connected with the lower casing 1 at the bottom end, one end of the vibrator 6 is fixedly connected with a spring 8, the other end of the spring 8 penetrates through and is fixed to one side surface of the upper casing 7, and the spring 8 is symmetrically arranged.
[0025] Specifically, the existing linear vibration motor still has some problems in actual use, in the process of long-time linear reciprocating motion, the vibrator 6 directly contacts the upper casing 7, so that the service life of the vibrator 6 is reduced, and the upper casing 7 is also abraded, thereby reducing the stability of motor vibration.
[0026] Therefore, the utility model solves the problem by setting the corresponding structure, the F-PCB 2 is powered through the external power cord, the current flows into the coil 3 through the F-PCB 2, according to Faraday's law, the coil 3 generates a magnetic field, the magnetic field interacts with the magnetic field of the magnetic steel 5, and then the magnetic steel 5 drives the vibrator 6 to move left and right linearly, so that the vibrator 6 abuts against the spring 8 and the spring 8 is elastically compressed, when the vibrator 6 moves reversely, the spring 8 is elastically released, and the vibrator 6 is reversely moved in the normal process, so that another spring 8 is compressed, and the reciprocating motion produces a vibration effect, and the vibration effect is transmitted to the upper casing 7 through the spring 8, and then the linear vibration motor vibrates.
[0027] The utility model discloses the vibrator 6 does not directly contact the inner wall of the upper casing 7 in the process of linear reciprocating motion through the spring 8, reduces the abrasion to the inner wall of the upper casing 7, makes its vibration more stable, reduces the noise generated when the existing linear vibration motor works, prolongs the service life of linear vibration motor.
[0028] The utility model discloses the all components of linear vibration motor are contained inside through the lower casing 1 and the upper casing 7, makes the linear vibration motor internal space more compact, simultaneously makes the space occupied by linear vibration motor smaller, can work in smaller space.
[0029] Embodiment two
[0030] As Figures 2 to 4 As shown in the utility model embodiment, another embodiment of the utility model is:
[0031] As Figure 4 As shown in the utility model embodiment, the shape of the lower casing 1 is adapted to the shape of the F-PCB 2.
[0032] Specifically, the lower shell 1 can better fix and limit the F-PCB 2.
[0033] As shown in Figure 4 , the F-PCB 2 and the coil 3 have an electrical connection relationship.
[0034] Specifically, the electrical connection relationship between the F-PCB 2 and the coil 3 allows the current to enter the coil 3 when the F-PCB 2 is powered.
[0035] As shown in Figure 4 , the coil 3 is provided with two, the magnetic steel 5 is provided with two, the magnetic steel 5 is located above the coil 3, each coil 3 corresponds to a magnetic steel 5, and the coil 3 and the magnetic steel 5 do not contact.
[0036] Specifically, when the coil 3 is powered, a magnetic field is generated, which interacts with the magnetic field of the magnetic steel 5 above it and drives the magnetic steel 5 to move.
[0037] As shown in Figure 4 , the YOKE 4 is located in the middle of the vibrator 6.
[0038] Specifically, the YOKE 4 is arranged in the middle of the vibrator 6, so that when it moves, the vibrator 6 moves together, and the displacement distance of the two ends of the vibrator 6 is the same.
[0039] As shown in Figure 4 , the lower shell 1 of the present embodiment is composed of a large rectangular plate and a small rectangular plate, and the large rectangular plate is matched with the bottom shape of the upper shell 7.
[0040] Specifically, the large rectangular plate is matched with the bottom shape of the upper shell 7, so that the internal structure of the linear vibration motor is contained, and the structure is compact. At this time, the part of the F-PCB 2 located on the small rectangular plate is not contained, and this part can be connected with the power line, so that the F-PCB 2 is powered.
[0041] Working principle:
[0042] The F-PCB 2 is powered through the external power line, the current flows into the coil 3 through the F-PCB 2, according to Faraday's law, the coil 3 generates a magnetic field, which interacts with the magnetic field of the magnetic steel 5, and then the magnetic steel 5 drives the vibrator 6 to move left and right linearly through the YOKE 4, so that the vibrator 6 touches the spring 8 and makes the spring 8 elastically compressed. When the vibrator 6 moves reversely, the spring 8 will elastically release, and in the normal process, it will drive the vibrator 6 to move reversely, so as to compress another spring 8. Such reciprocating motion produces a vibration effect, which is transmitted to the upper shell 7 through the spring 8, and then the linear vibration motor vibrates.
[0043] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A novel linear vibration motor, characterized in that, The device includes a lower housing (1), an F-PCB (2) fixedly connected to the top of the lower housing (1), a coil (3) fixedly connected to the top of the F-PCB (2), an oscillator (6) slidably arranged on the top of the F-PCB (2), a YOKE (4) fixedly connected inside the oscillator (6), a magnet (5) fixedly connected inside the YOKE (4), an upper housing (7) arranged above the oscillator (6), the bottom end of the upper housing (7) fixedly connected to the top end of the lower housing (1), a spring (8) fixedly connected to one end of the oscillator (6), and the other end of the spring (8) penetrating and fixed to one side surface of the upper housing (7). The springs (8) are symmetrically arranged.
2. The novel linear vibration motor according to claim 1, characterized in that, The shape of the lower housing (1) is adapted to the shape of the F-PCB (2).
3. A novel linear vibration motor according to claim 1, characterized in that, There is an electrical connection between the F-PCB (2) and the coil (3).
4. A novel linear vibration motor according to claim 1, characterized in that, There are two coils (3) and two magnets (5). The magnets (5) are located above the coils (3). Each coil (3) corresponds to a magnet (5) and there is no contact between the coils (3) and the magnets (5).
5. A novel linear vibration motor according to claim 1, characterized in that, The YOKE (4) is located in the middle of the oscillator (6).
6. A novel linear vibration motor according to claim 1, characterized in that, The lower housing (1) is composed of a large rectangular plate and a small rectangular plate, and the shape of the large rectangular plate matches the bottom shape of the upper housing (7).