Miniature vibration motor with high vibration quantity
By setting up a connecting block and a counterweight assembly in the micro vibrating motor, the eccentricity between the eccentric oscillator and the motor shaft is increased, and by selecting counterweight blocks of different sizes to adjust the vibration force, the problem of the inability to adjust the vibration strength in the prior art according to customer needs is solved, and higher applicability and stability are achieved.
Patent Information
- Application Number
- CN202421745893.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-23
AI Technical Summary
Existing micro-vibration motors with high vibration volumes cannot adjust the vibration intensity according to the needs of different customers, resulting in low applicability.
By providing a connecting block and a counterweight assembly on the rotating shaft surface of the micro motor, the connecting block and counterweight assembly are used to increase the eccentricity between the eccentric oscillator and the motor shaft, and the vibration force is adjusted by selecting counterweight blocks of different sizes.
The flexibility and diversity of vibration force adjustment are achieved, the applicability of the motor is improved, and the problem of eccentric oscillator offset is avoided by enhancing the connection strength and fixing method.
Smart Images
Figure CN222827093U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of micro vibration motors, in particular to a micro vibration motor with high vibration amount. Background Art
[0002] Micro vibration motors are mainly used in mobile phones. They are DC brushed motors with an eccentric wheel on the motor shaft. When the motor rotates, the center point of the eccentric wheel is not on the center of rotation of the motor, causing the motor to constantly lose balance and vibrate due to inertia.
[0003] According to the Chinese patent with publication number CN212210721U, a micro vibration motor with high vibration amount is disclosed, which is easy to disassemble for maintenance and replacement, thereby improving economy and practicality; a motor body, two groups of wiring terminals, a rotating shaft, an eccentric vibrator, an end cover, a mounting plate, two groups of limiting plates, two groups of lower positioning rings, two groups of upper positioning rings, two groups of positioning screws and multiple groups of mounting screws, the bottom ends of the two groups of limiting plates are respectively connected to the front and rear of the top end of the mounting plate, the middle part of the right end of the motor body and the middle part of the left end of the end cover are both provided with mounting rings, the left and right parts of the top end of the mounting plate are both provided with mounting seats, the top ends of the two groups of mounting seats are respectively connected to the bottom ends of the two groups of lower positioning rings, the rear parts of the top ends of the two groups of lower positioning rings are respectively hinged to the rear parts of the bottom ends of the two groups of upper positioning rings, the front ends of the two groups of upper positioning rings are respectively provided with connecting blocks, and the front ends of the two groups of lower positioning rings are respectively provided with connecting seats.
[0004] The above-mentioned high-vibration micro-vibration motor still has some problems in use. Although it is easy to disassemble for maintenance and replacement, thereby improving economy and practicality, different customers have different needs. The high-vibration micro-vibration motor cannot adjust the vibration intensity according to the usage requirements of different customers, resulting in its low applicability. Utility Model Content
[0005] The utility model aims to provide a micro vibration motor with high vibration amount, so as to solve the problem that the motor cannot be adjusted according to the usage requirements of different customers and thus has low applicability as mentioned in the above background technology.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A micro vibration motor with high vibration amount, comprising a micro motor, a connecting block is fixedly sleeved on the rotating shaft surface of the micro motor, a connecting assembly is arranged at the bottom of the connecting block, an eccentric vibrator is connected to the bottom of the connecting block through the connecting assembly, and counterweight assemblies are arranged on both side surfaces of the eccentric vibrator;
[0008] The connecting component includes a hole opened at the bottom of the eccentric vibrator, the inner cavity of the hole is rotatably connected with a second bolt, one end of the second bolt extends upward, the thread penetrates the surface of the connecting block and is threadedly connected to the surface of the rotating shaft of the micro motor.
[0009] Preferably, the counterweight assembly comprises guide grooves provided on the surfaces of both sides of the eccentric vibrator, the inner cavities of the guide grooves on both sides are slidably connected with guide blocks, and the surfaces of the guide blocks are fixedly connected with counterweight blocks.
[0010] Preferably, threaded holes are provided on the inner wall surfaces on the opposite sides of the two groups of guide grooves, and third bolts are slidably inserted on the surfaces of the two groups of guide blocks and at positions corresponding to the threaded holes. One ends of the two groups of third bolts pass through the guide blocks on the corresponding sides in turn and are threadedly connected to the inner cavity of the threaded holes on the corresponding sides.
[0011] Preferably, a bearing is fixedly inserted into the inner cavity of the hole, and the inner ring of the bearing is sleeved on the neck of the second bolt.
[0012] Preferably, two groups of guide holes are opened on the bottom surface of the connecting block, and guide tubes are slidably inserted into the inner circles of the guide holes, and the bottom of the guide tubes is fixedly connected to the top surface of the eccentric vibrator.
[0013] Preferably, connecting holes are opened on both sides of the connecting block and at positions corresponding to the guide holes. The connecting holes extend downward and are connected to the inner cavity of the guide hole. The inner cavity of the connecting hole is rotatably connected to a first bolt, and the screw thread of the first bolt is connected to the inner cavity of the guide tube and contacts the top surface of the eccentric vibrator.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] 1. The utility model sets a connecting component and screws the second bolt to push the eccentric vibrator to one side, thereby increasing the eccentricity between the eccentric vibrator and the micro motor shaft, thereby increasing the vibration force, making it convenient for staff to adjust the eccentricity according to the usage requirements of different customers, and the adjustment range is wide and diverse.
[0016] 2. The utility model increases the weight of the eccentric vibrator by setting a counterweight assembly, thereby further increasing the vibration force, and can select a counterweight block of corresponding size according to the required vibration force to achieve the required vibration force. Furthermore, the guide block on the surface of the counterweight block is slidably connected to the inner cavity of the guide groove and a third bolt is used to penetrate the guide block and threadedly connected to the inner cavity of the threaded hole to fix the counterweight block. This is very convenient and quick, and is easy for the staff to assemble it.
[0017] 3. The utility model fixes the guide tube by setting a first bolt which is threadedly connected to the inner cavity of the guide tube, thereby further fixing the eccentric vibrator after movement and improving the connection strength between the connecting block and the eccentric vibrator. Tightening the first bolt pulls the eccentric vibrator upward, thereby providing an upward thrust to the second bolt, preventing the second bolt from loosening due to the rotational force generated by the rotation of the micro motor and preventing the eccentric vibrator from being offset. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of a micro vibration motor with high vibration amount of the utility model;
[0019] Figure 2 This is a schematic cross-sectional view of the connecting block of the utility model;
[0020] Figure 3 It is a structural schematic diagram of the counterweight block of the utility model.
[0021] In the figure: 100, micro motor; 101, connecting block; 102, eccentric vibrator; 103, base; 200, connecting hole; 201, first bolt; 300, guide hole; 301, guide tube; 400, second bolt; 401, bearing; 403, hole; 500, guide groove; 501, threaded hole; 502, guide block; 503, third bolt; 504, counterweight. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] See also Figure 1-3 The present embodiment provides a micro vibration motor with high vibration, including a micro motor 100, a connecting block 101 is fixedly sleeved on the rotating shaft surface of the micro motor 100, a connecting assembly is arranged at the bottom of the connecting block 101, an eccentric vibrator 102 is connected to the bottom of the connecting block 101 through the connecting assembly, counterweight assemblies are arranged on both sides of the eccentric vibrator 102, and a base 103 is arranged at the bottom of the micro motor 100;
[0024] The connecting component includes a hole 403 opened at the bottom of the eccentric vibrator 102, and the inner cavity of the hole 403 is rotatably connected to a second bolt 400. One end of the second bolt 400 extends upward and threads through the surface of the connecting block 101 and is threadedly connected to the surface of the rotating shaft of the micro motor 100. Through the setting of the connecting component, the second bolt 400 is turned to push the eccentric vibrator 102 to one side, thereby increasing the eccentricity between the eccentric vibrator 102 and the rotating shaft of the micro motor 100, thereby increasing the vibration force, making it convenient for the staff to adjust the eccentricity according to the usage requirements of different customers, and the adjustment range is wide and diverse.
[0025] The counterweight assembly includes guide grooves 500 provided on the surfaces of both sides of the eccentric vibrator 102, the inner cavities of the guide grooves 500 on both sides are slidably connected with guide blocks 502, the surfaces of the guide blocks 502 are fixedly connected with counterweight blocks 504, threaded holes 501 are provided on the inner wall surfaces of the two groups of guide grooves 500 on the opposite sides, third bolts 503 are slidably inserted on the surfaces of the two groups of guide blocks 502 and at positions corresponding to the threaded holes 501, one end of the two groups of third bolts 503 passes through the guide blocks 502 on the corresponding sides in turn and is threadedly connected to the opposite sides. The inner cavity of the threaded hole 501 on the side is provided with a counterweight assembly to increase the weight of the eccentric vibrator 102, thereby further increasing the vibration force, and the counterweight block 504 of corresponding size can be selected according to the required vibration force to achieve the required vibration force. Furthermore, the guide block 502 on the surface of the counterweight block 504 is slidably connected to the inner cavity of the guide groove 500 and a third bolt 503 is used to penetrate the guide block 502 and be threadedly connected to the inner cavity of the threaded hole 501 to fix the counterweight block 504. It is very convenient and quick, and it is easy for the staff to assemble it.
[0026] It is worth noting that a bearing 401 is fixedly inserted into the inner cavity of the hole 403 , and the inner ring of the bearing 401 is sleeved on the neck of the second bolt 400 . The arrangement of the bearing 401 makes it convenient for the user to screw the second bolt 400 .
[0027] Among them, two groups of guide holes 300 are opened on the bottom surface of the connecting block 101, and the inner circle of the guide hole 300 is slidably inserted with a guide tube 301. The bottom of the guide tube 301 is fixedly connected to the top surface of the eccentric vibrator 102. Through the setting of the guide tube 301, the movement range of the eccentric vibrator 102 is limited to prevent the eccentric vibrator 102 from rotating due to the rotational force generated when the second bolt 400 is tightened.
[0028] Furthermore, connecting holes 200 are provided on both sides of the connecting block 101 and at positions corresponding to the guide hole 300. The connecting holes 200 extend downward and are connected to the inner cavity of the guide hole 300. The inner cavity of the connecting hole 200 is rotatably connected with a first bolt 201. The screw of the first bolt 201 is threadedly connected to the inner cavity of the guide tube 301 and contacts the top surface of the eccentric vibrator 102. By setting the first bolt 201, it is threadedly connected to the inner cavity of the guide tube 301 to fix the guide tube 301, thereby further fixing the moved eccentric vibrator 102 and improving the connection strength between the connecting block 101 and the eccentric vibrator 102. Tightening the first bolt 201 pulls the eccentric vibrator 102 upward, thereby providing an upward thrust to the second bolt 400 to prevent the second bolt 400 from loosening due to the rotational force generated by the rotation of the micro motor 100 and causing the eccentric vibrator 102 to deviate.
[0029] Working principle:
[0030] First, remove the first bolt 201 to disengage it from the inner cavity of the connecting hole 200, and then screw the second bolt 400. The head of the second bolt 400 moves downward, and the eccentric vibrator 102 is pushed downward through the transmission of the bearing 401, thereby increasing the eccentricity between the eccentric vibrator 102 and the rotating shaft of the micro motor 100, further increasing the vibration force of the micro motor 100, and while the eccentric vibrator 102 moves downward, the guide tube 301 moves downward along the guide hole 300 to limit the movement range of the eccentric vibrator 102. At this time, take out the first bolt 201, pass through the connecting hole 200 in turn, and threadedly connect to the inner cavity of the guide tube 301, and tighten the first bolt 201, thereby improving the connection strength between the connecting block 101 and the eccentric vibrator 102.
[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A micro vibration motor with high vibration amount, characterized in that: The invention comprises a micro motor (100), wherein a connecting block (101) is fixedly sleeved on the surface of a rotating shaft of the micro motor (100), a connecting assembly is arranged at the bottom of the connecting block (101), an eccentric vibrator (102) is connected to the bottom of the connecting block (101) via the connecting assembly, and counterweight assemblies are arranged on both side surfaces of the eccentric vibrator (102); The connecting component comprises a hole (403) opened at the bottom of the eccentric vibrator (102), the inner cavity of the hole (403) is rotatably connected to a second bolt (400), one end of the second bolt (400) extends upward and threads through the surface of the connecting block (101) and is threadedly connected to the surface of the rotating shaft of the micro motor (100).
2. A micro vibration motor with high vibration amount according to claim 1, characterized in that; The counterweight assembly comprises guide grooves (500) provided on the surfaces of both sides of the eccentric vibrator (102), the inner cavities of the guide grooves (500) on both sides are slidably connected with guide blocks (502), and the surfaces of the guide blocks (502) are fixedly connected with counterweight blocks (504).
3. A micro vibration motor with high vibration amount according to claim 2, characterized in that: The inner wall surfaces of the two groups of guide grooves (500) on the opposite side are provided with threaded holes (501), and the surfaces of the two groups of guide blocks (502) and the positions corresponding to the threaded holes (501) are slidably plugged with third bolts (503), and one end of the two groups of third bolts (503) passes through the guide blocks (502) on the corresponding side in turn and is threadedly connected to the inner cavity of the threaded holes (501) on the corresponding side.
4. The micro vibration motor with high vibration amount according to claim 1, characterized in that: A bearing (401) is fixedly inserted into the inner cavity of the hole (403), and the inner ring of the bearing (401) is sleeved on the neck of the second bolt (400).
5. The micro vibration motor with high vibration amount according to claim 1, characterized in that: The bottom surface of the connection block (101) is provided with two groups of guide holes (300), the inner ring of the guide hole (300) is slidably plugged with a guide tube (301), and the bottom of the guide tube (301) is fixedly connected to the top surface of the eccentric vibrator (102).
6. A micro vibration motor with high vibration amount according to claim 5, characterized in that: Connecting holes (200) are provided on both sides of the connecting block (101) and at positions corresponding to the guide hole (300). The connecting holes (200) extend downward and are connected to the inner cavity of the guide hole (300). The inner cavity of the connecting hole (200) is rotatably connected to a first bolt (201). The screw of the first bolt (201) is threadedly connected to the inner cavity of the guide tube (301) and contacts the top surface of the eccentric vibrator (102).