CN221081061U

CN221081061U - Ultra-silent miniature brushless vibration motor

Info

Publication number: CN221081061U
Application number: CN202322825501.0U
Authority: CN
Inventors: 牟恩英
Original assignee: Huizhou Zhengkun Precision Electromechanical Co ltd
Current assignee: Huizhou Zhengkun Precision Electromechanical Co ltd
Priority date: 2023-10-20
Filing date: 2023-10-20
Publication date: 2024-06-04
Anticipated expiration: 2033-10-20

Abstract

The utility model belongs to the technical field of miniature brushless vibration motors, and particularly relates to an ultra-silent miniature brushless vibration motor which comprises a shell, wherein a first end cover is arranged at the left end of the shell, a second end cover is arranged at the right end of the shell, an output shaft is arranged in the middle of the right side of the second end cover, an FPC (flexible printed circuit) is arranged in the middle of the right side of the first end cover, a threaded guide rod is fixedly connected inside the first end cover, the threaded guide rod is in contact with the FPC, a first limit disc is fixedly sleeved on the outer side of the threaded guide rod, and the first limit disc is in contact with the first end cover. According to the utility model, the mounting sleeve is pushed to slide into the shell, and can be clamped and limited under the action of the structures such as the clamping holes, the clamping balls and the springs, so that the mounting sleeve is stable to mount, and the noise reduction treatment can be carried out on the miniature brushless vibration motor under the action of the mute cotton sliver and the sound absorption sleeve, so that the silence of the miniature brushless vibration motor is ensured.

Description

Ultra-silent miniature brushless vibration motor

Technical Field

The utility model relates to the technical field of miniature brushless vibration motors, in particular to an ultra-silent miniature brushless vibration motor.

Background

As is well known, a miniature brushless vibration motor is a small brushless motor that is commonly used in vibration devices or other applications where vibration is required. The brushless motor technology is adopted, and a traditional brush and a commutator are not needed, so that the energy loss and friction are reduced, and the brushless motor has higher efficiency and service life;

In addition, the miniature brushless vibration motor is small in size and small in power, but has high vibration frequency, and the vibration intensity and speed can be adjusted by controlling the magnitude and frequency of the current. They are commonly used in small electronic devices such as mobile phone vibration motors, electric toothbrushes, electric toys, and the like.

A miniature brushless vibration motor is disclosed in the patent issued patent CN207304246U, comprising an upper housing, a rotor assembly and a stator assembly; the rotor assembly comprises a bearing sleeve, magnetic steel, a vibrator and a bearing; the stator assembly comprises a shaft, two coils, an IC, a capacitor, a gasket, an FPC, a lower casing insert and a lower casing; the upper shell cover is combined with the lower shell to form a closed cavity; the bearing sleeve is arranged at the upper end of the shaft, the bearing sleeve is sleeved on the bearing, the magnetic steel is sleeved on the bearing sleeve, one part of the magnetic steel is fixed with the bearing sleeve through glue adhesion, and a certain space is reserved between the other part of the magnetic steel and the bearing sleeve; part of the vibrator is plugged into the space, and the vibrator and the bearing sleeve are bonded through glue; the lower shell insert clamp is arranged on the lower shell, the surface of the lower shell insert clamp is flush with the surface of the lower shell, and the lower shell is sleeved on the shaft. The utility model has no friction between the brush and the commutator, thus fundamentally solving the problems of service life and friction noise of the motor.

However, the existing micro brushless vibration motor also has a certain disadvantage, and the existing micro brushless vibration motor adopts a shell and an end cover to bear each component more simply, so that the problem of noise to a certain extent can be caused due to the influence of factors such as vibration and the like.

Disclosure of utility model

The utility model aims to provide an ultra-silent miniature brushless vibration motor, which solves the problems that the existing miniature brushless vibration motor adopts a shell and an end cover to bear various components and causes noise to a certain extent due to the influence of factors such as vibration and the like.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the ultra-silent miniature brushless vibration motor comprises a shell, wherein the left end of the shell is provided with a first end cover, the right end of the shell is provided with a second end cover, the middle part of the right side of the second end cover is provided with an output shaft, the middle part of the right side of the first end cover is provided with an FPC, the inside of the first end cover is fixedly connected with a threaded guide rod, and the threaded guide rod is in contact with the FPC;

the outer side of the threaded guide rod is fixedly sleeved with a first limiting disc, the first limiting disc is in contact with the first end cover, the left end of the threaded guide rod is fixedly connected with a second limiting disc, the second limiting disc is in contact with the second end disc through threads, and a silencing mechanism is arranged in the shell.

Preferably, two screw thread guide rods are arranged, the two screw thread guide rods are symmetrically distributed on the first end cover, and the cable can be installed and used through the arrangement of the screw thread guide rods.

Preferably, the silence mechanism includes the installation cover, silence silver, inhale the sound cover, draw-in hole, roof, spring and card ball, the inner wall sliding connection of casing has the installation cover, the left end and the first contact of end cover of installation cover, the right-hand member and the second contact of end cover of installation cover, the inner wall fixedly connected with silence silver of installation cover, the inboard fixedly connected with of installation cover inhales the sound cover, the draw-in hole has been seted up on the surface of installation cover, the inner wall sliding connection of casing has the roof, the surface welding that roof was located one side of installation cover has the spring, the other end casing welding of spring, the roof is close to the surface fixedly connected with card ball of installation cover one side, card ball and draw-in hole sliding connection through promoting installation cover and the contact of casing inner wall, in this process, the card ball takes place to move under the terminal surface extrusion of installation cover to promote the roof and remove, and finally make card ball and installation cover surface contact, and the card ball slides along installation cover surface when card ball slide into draw-in card hole department, and resume the card ball to insert card ball, make the sound absorption sleeve and inhale the sound cover under the effect, the effect of making a sound to the sound of the silence, the sound of the mini-type is not to the sound-absorbing the sound cover.

Preferably, the mute cotton sliver is provided with a plurality of mute cotton slivers, the mute cotton slivers are arranged in an annular array on the installation sleeve, and noise reduction treatment can be carried out through the arrangement of the mute cotton slivers.

Preferably, the sound absorbing sleeve is contacted with the mute cotton sliver, the left end of the sound absorbing sleeve is contacted with the first end cover, the right end of the sound absorbing sleeve is contacted with the second end cover, and noise reduction treatment can be carried out through the arrangement of the sound absorbing sleeve.

Preferably, two clamping holes are formed, the two clamping holes are symmetrically distributed on the mounting sleeve, and the clamping holes are arranged so as to be convenient for being matched with the clamping balls for clamping.

Compared with the prior art, the utility model has the following beneficial effects:

1. According to the utility model, the mounting sleeve is pushed to slide into the shell, and can be clamped and limited under the action of the structures such as the clamping holes, the clamping balls and the springs, so that the mounting sleeve is stable to mount, and the noise reduction treatment can be carried out on the miniature brushless vibration motor under the action of the mute cotton sliver and the sound absorption sleeve, so that the silence of the miniature brushless vibration motor is ensured.

2. According to the utility model, through the arrangement of the threaded guide rod, an operator can wind the cable, can push the second limiting disc to move under the threaded connection relationship, and can clamp and fix the cable by matching with the first limiting disc, so that the cable is firmly connected, and the problem that the cable is easy to loosen due to simple spot welding in the prior art is avoided.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a left side perspective view of FIG. 1 in accordance with the present utility model;

FIG. 3 is a front cross-sectional view of FIG. 1 of the present utility model;

fig. 4 is an enlarged view of fig. 3 a in accordance with the present utility model.

In the figure: 1. a housing; 2. an end cover I; 3. an end cover II; 4. an output shaft; 5. an FPC; 6. a threaded guide rod; 7. a first limiting disc; 8. an end plate; 9. a second limiting plate; 10. a silencing mechanism; 101. a mounting sleeve; 102. mute cotton sliver; 103. a sound absorbing sleeve; 104. a clamping hole; 105. a top plate; 106. a spring; 107. and (5) clamping the ball.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2 and 3, an ultra-silent micro brushless vibration motor comprises a shell 1, wherein a first end cover 2 is arranged at the left end of the shell 1, a second end cover 3 is arranged at the right end of the shell 1, an output shaft 4 is arranged in the middle of the right side of the second end cover 3, an FPC5 is arranged in the middle of the right side of the first end cover 2, a threaded guide rod 6 is fixedly connected inside the first end cover 2, the threaded guide rod 6 is in contact with the FPC5, two threaded guide rods 6 are symmetrically distributed on the first end cover 2, and the two threaded guide rods 6 can be used for installing and using cables through the arrangement of the threaded guide rods 6;

The outside of screw thread guide arm 6 has fixedly cup jointed limit plate one 7, limit plate one 7 and the contact of end cover one 2, the left end fixedly connected with end plate 8 of screw thread guide arm 6, the outside of screw thread guide arm 6 is through threaded connection has limit plate two 9, limit plate two 9 and end plate 8 contact, through carrying out the assembly processing with end cover one 2, end cover two 3, casing 1, can twine the cable in the outside of screw thread guide arm 6, and make cable and limit plate one 7 contact, rotate through promoting limit plate two 9, under threaded connection's relation, make limit plate two 9 to the direction removal of limit plate one 7, finally make limit plate two 9 and cable contact, press from both sides tightly fixedly to the cable, in order to guarantee the connection stability of cable.

Referring to fig. 1, 2, 3 and 4, a mute mechanism 10 is disposed in the interior of a housing 1, the mute mechanism 10 includes a mounting sleeve 101, a mute cotton sliver 102, a sound absorbing sleeve 103, a clamping hole 104, a top plate 105, a spring 106 and a clamping ball 107, the inner wall of the housing 1 is slidably connected with the mounting sleeve 101, the left end of the mounting sleeve 101 is in contact with a first end cover 2, the right end of the mounting sleeve 101 is in contact with a second end cover 3, the inner wall of the mounting sleeve 101 is fixedly connected with the mute cotton sliver 102, the mute cotton slivers 102 are disposed in a plurality of, the mute cotton slivers 102 are arranged on the mounting sleeve 101 in an annular array, noise reduction can be performed on the arrangement of the mute cotton slivers 102, the inner side of the mounting sleeve 101 is fixedly connected with a sound absorbing sleeve 103, the sound absorbing sleeve 103 is in contact with the mute cotton sliver 102, the left end of the sound absorbing sleeve 103 is in contact with the first end cover 2, the right end of the sound absorbing sleeve 103 is in contact with the second end cover 3, noise reduction can be performed through the arrangement of the sound absorbing sleeve 103, the surface of the mounting sleeve 101 is provided with two clamping holes 104, the two clamping holes 104 are symmetrically distributed on the mounting sleeve 101, the clamping holes 104 are arranged to be convenient for being matched with the clamping balls 107 for clamping, the inner wall of the shell 1 is slidably connected with a top plate 105, the surface of the top plate 105 far away from one side of the mounting sleeve 101 is welded with a spring 106, the other end of the spring 106 is welded with the shell 1, the surface of the top plate 105 close to one side of the mounting sleeve 101 is fixedly connected with a clamping ball 107, the clamping ball 107 is slidably connected with the clamping holes 104, the clamping ball 107 is pushed to contact with the inner wall of the shell 1 by pushing the mounting sleeve 101, in the process, the clamping ball 107 moves under the extrusion of the end face of the mounting sleeve 101 to push the top plate 105 to move, the spring 106 deforms, finally, the clamping ball 107 is enabled to contact with the surface of the mounting sleeve 101 under the action of force, the clamping ball 107 slides along the surface of the mounting sleeve 101, and when the clamping ball 107 slides into the clamping hole 104, the spring 106 resumes the deformation to promote card ball 107 to insert card hole 104, carry out spacing to installation cover 101 for silence cotton silver 102, inhale sound cover 103 and be in stability, under silence cotton silver 102, inhale sound cover 103's effect, can make an uproar to miniature brushless vibration motor and fall the processing.

The specific implementation process of the utility model is as follows: when the ultra-silent micro brushless vibration motor is required to be used, the mounting sleeve 101 is pushed to be in contact with the inner wall of the shell 1, in the process, the clamping ball 107 moves under the extrusion of the end face of the mounting sleeve 101 to push the top plate 105 to move, the spring 106 deforms, finally the clamping ball 107 is in contact with the surface of the mounting sleeve 101, the clamping ball 107 slides along the surface of the mounting sleeve 101 under the action of force, when the clamping ball 107 slides into the clamping hole 104, the spring 106 recovers deformation to push the clamping ball 107 to be inserted into the clamping hole 104, and the mounting sleeve 101 is limited, so that the silent cotton sliver 102 and the sound absorbing sleeve 103 are stable;

Then to end cover one 2, end cover two 3, casing 1 carries out the assembly processing, can twine the cable in the outside of screw thread guide arm 6, and make cable and spacing dish one 7 contact, rotate through promoting spacing dish two 9, under threaded connection's relation, make spacing dish two 9 remove to the direction of spacing dish one 7, finally make spacing dish two 9 and cable contact, press from both sides tightly fixedly to the cable, in order to guarantee that the connection of cable is stable, when miniature brushless vibration motor operates, under silence silver 102, inhale the effect of sound cover 103, can make an uproar to miniature brushless vibration motor and handle of falling.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An ultra-silent miniature brushless vibration motor, comprising a housing (1), characterized in that: the novel plastic box comprises a shell body (1), and is characterized in that a first end cover (2) is arranged at the left end of the shell body (1), a second end cover (3) is arranged at the right end of the shell body (1), an output shaft (4) is arranged in the middle of the right side of the second end cover (3), an FPC (5) is arranged in the middle of the right side of the first end cover (2), a threaded guide rod (6) is fixedly connected to the inside of the first end cover (2), and the threaded guide rod (6) is in contact with the FPC (5);

The outside of screw thread guide arm (6) is fixed to be cup jointed spacing dish one (7), spacing dish one (7) and first (2) contact of end cover, the left end fixedly connected with end dish (8) of screw thread guide arm (6), the outside of screw thread guide arm (6) is through threaded connection has spacing dish two (9), spacing dish two (9) and end dish (8) contact, the inside of casing (1) is provided with silence mechanism (10).

2. The ultra-silent micro brushless vibration motor according to claim 1, wherein: the threaded guide rods (6) are arranged in two, and the two threaded guide rods (6) are symmetrically distributed on the first end cover (2).

3. The ultra-silent micro brushless vibration motor according to claim 1, wherein: the mute mechanism (10) comprises a mounting sleeve (101), a mute cotton sliver (102), a sound absorbing sleeve (103), a clamping hole (104), a top plate (105), a spring (106) and a clamping ball (107), wherein the mounting sleeve (101) is connected with the inner wall of the shell (1) in a sliding manner, the left end of the mounting sleeve (101) is in contact with an end cover I (2), the right end of the mounting sleeve (101) is in contact with an end cover II (3), the inner wall of the mounting sleeve (101) is fixedly connected with the mute cotton sliver (102), the inner side of the mounting sleeve (101) is fixedly connected with the sound absorbing sleeve (103), the clamping hole (104) is formed in the surface of the mounting sleeve (101), the top plate (105) is connected with the top plate (105) in a sliding manner, the spring (106) is welded on the surface of one side of the top plate (105) away from the mounting sleeve (101), the other end of the spring (106) is welded on the shell (1), the surface of the top plate (105) close to one side of the mounting sleeve (101) is fixedly connected with the clamping ball (107), and the clamping ball (107) is connected with the clamping hole (104) in a sliding manner.

4. An ultra-silent micro-brushless vibration motor according to claim 3, wherein: the silent cotton sliver (102) is provided with a plurality of silent cotton slivers, and the silent cotton slivers (102) are arranged on the mounting sleeve (101) in an annular array mode.

5. An ultra-silent micro-brushless vibration motor according to claim 3, wherein: the sound absorbing sleeve (103) is in contact with the mute cotton sliver (102), the left end of the sound absorbing sleeve (103) is in contact with the first end cover (2), and the right end of the sound absorbing sleeve (103) is in contact with the second end cover (3).

6. An ultra-silent micro-brushless vibration motor according to claim 3, wherein: two clamping holes (104) are formed, and the two clamping holes (104) are symmetrically distributed on the mounting sleeve (101).