CN201789402U - Subminiature vibrating motor - Google Patents
Subminiature vibrating motor Download PDFInfo
- Publication number
- CN201789402U CN201789402U CN2010205413370U CN201020541337U CN201789402U CN 201789402 U CN201789402 U CN 201789402U CN 2010205413370 U CN2010205413370 U CN 2010205413370U CN 201020541337 U CN201020541337 U CN 201020541337U CN 201789402 U CN201789402 U CN 201789402U
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- micro
- vibration motor
- permanent magnet
- electromagnet
- balancing weight
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The utility model discloses a subminiature vibrating motor, which comprises a fixing frame, a permanent-magnet and an elastic support for supporting and suspending the permanent-magnet in the fixing frame. The fixing frame is equipped with an electric conduction connection device; the elastic support is fixedly connected on the fixing frame; the subminiature vibrating motor also comprises an electromagnet composed of a coil and an iron core; the electromagnet and the permanent-magnet are arranged on the same plane and fixed in the subminiature vibrating motor; and an anode and a cathode of the electric conduction connection device are respectively connected with two leading wires of the coil. The subminiature vibrating motor effectively reduces thickness of the whole machine and realizes slim style of products; manufacturing process of the product is simple and easy to realize; and the capability of product can be effectively improved, so that the product is more stable.
Description
Technical field
The utility model relates to a kind of micro-vibration motor, relates in particular to a kind of micro-vibration motor of platypelloid type structure.
Background technology
Along with the development trend of portable consumer electronic product slimmings such as mobile phone, also correspondingly develop to the slimming direction as the micro-vibration motor of its vibrating elements.The micro-vibration motor oscillating unit of traditional structure vertically vibrates, so the vibrating motor in the vertical direction need reserve enough big oscillation space for vibration unit, and the thickness that this has increased product undoubtedly is unfavorable for the slimming of product.
Publication number is the vibrating motor that the Chinese patent of CN201388144 discloses a kind of vibration unit along continuous straight runs vibration, this vibration unit is by balancing weight and place the permanent magnet at balancing weight center to form, and coil places the middle position of permanent magnet below and is fixed on the fixed frame.This structural vibrations motor has omitted the oscillation space that original Technology Need in the vertical direction is reserved, and has reduced the thickness of product to a certain extent.Yet this constructed products coil and vibration unit are that in the vertical direction is arranged, and the slimming degree of product is still undesirable.And in order to make the motion of vibration unit along continuous straight runs, two permanent magnets must be opposite over against the part direction of magnetization of coil, the technology more complicated of realization, and the existence of active force makes product that the potential risk of inefficacy be arranged between two magnet.
So, be necessary the micro-vibration motor of said structure is further improved to avoid above-mentioned defective.
The utility model content
Technical problem to be solved in the utility model provides a kind of thickness that can further reduce complete machine, realize the slimming of product design, further simplify the manufacture craft of product, make to produce to be easy to realize, can make the more stable micro-vibration motor of performance of product simultaneously.
For solving the problems of the technologies described above, the technical solution of the utility model is: the micro-vibration motor, comprise fixed frame, and permanent magnet supports described permanent magnet and makes described permanent magnet be suspended in the elastic supporting member for supporting optical member of fixed frame inside; Described fixed frame is provided with conductive connecting device; Described elastic supporting member for supporting optical member secure bond is on described fixed frame, described micro-vibration motor also comprises the electromagnet of being made up of coil and iron core, described electromagnet and described permanent magnet place on the same plane and described electromagnet is fixed on described micro-vibration motor, and positive pole on the described conductive connecting device and negative pole are electrically connected with two lead-in wires of coil respectively.
As optimized technical scheme, the direction of magnetization of described electromagnet and the direction of magnetization of permanent magnet are oppositely arranged, and along with the variation of the AC signal that feeds in the coil and the active force of permanent magnet generation alternation.
As to improvement of the technical scheme, described micro-vibration motor also comprises the balancing weight that is fixed together with described permanent magnet.
As to improvement of the technical scheme, described balancing weight is the balancing weight of non-magnet material; Described balancing weight is provided with fluting, and described fluting correspondence is held described electromagnet and fixing described permanent magnet.
As to improvement of the technical scheme, the center at described balancing weight edge also is provided with extension, and described extension is provided with elastic buffering mechanism.
As to improvement of the technical scheme, described fixed frame comprises shell and protecgulum, described shell is the structure of the equal opening in top and bottom, described protecgulum is incorporated into the top of described shell, described conductive connecting device is circuit board structure independently, and described conductive connecting device is incorporated into the bottom of shell.
As to improvement of the technical scheme, described electromagnet is fixed on the described wiring board.
As to improvement of the technical scheme, the distance of described electromagnet and described permanent magnet is greater than the largest deformation displacement of described elastic supporting member for supporting optical member.
As to improvement of the technical scheme, described elastic supporting member for supporting optical member is the flexure strip of pair of opposing, described elastic supporting member for supporting optical member is an axially symmetric structure, and an end of described elastic supporting member for supporting optical member is fixed on the sidewall of described shell, and the other end is fixed on the connecting portion of described balancing weight.
As to improvement of the technical scheme, described micro-vibration motor is a square structure.
Owing to adopted technique scheme, the micro-vibration motor comprises fixed frame, and permanent magnet supports described permanent magnet and makes described permanent magnet be suspended in the elastic supporting member for supporting optical member of fixed frame inside; Described fixed frame is provided with conductive connecting device; Described elastic supporting member for supporting optical member secure bond is on described fixed frame, described micro-vibration motor also comprises the electromagnet of being made up of coil and iron core, described electromagnet and described permanent magnet place on the same plane and are fixed on described micro-vibration motor, and positive pole on the described conductive connecting device and negative pole are electrically connected with two lead-in wires of coil respectively; The utility model has effectively reduced the thickness of product, has realized the slimming of product, and production technology simply is easy to realize simultaneously, and can effectively improve the performance of product, makes product more stable.
Description of drawings
Fig. 1 is the stereogram 1 of the utility model embodiment;
Fig. 2 is the stereogram 2 of the utility model embodiment;
Fig. 3 is the perspective exploded view of the utility model embodiment;
Fig. 4 is the vertical view of the utility model embodiment vibration unit;
Fig. 5 is the vertical view of the utility model embodiment vibration unit and elastic supporting member for supporting optical member assembling;
Fig. 6 is the operation principle schematic diagram of the utility model embodiment;
Fig. 7 is the vertical view of the utility model embodiment operating state.
Among the figure: the 11-protecgulum; The 12-shell; The short sidewall of 121-; The 13-conductive connecting device; The 131-positive pole; The 132-negative pole; The 2-elastic supporting member for supporting optical member; The 21-connecting portion; The 22-elasticity arm; The 23-fixed part; The 3-balancing weight; The 31-connecting portion; The 32-fluting; The 33-extension; The 41-permanent magnet; The 42-electromagnet; The 421-coil; The 422-iron core; The 5-elastic buffering mechanism.
Embodiment
Below in conjunction with drawings and Examples, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
To shown in Figure 5, the micro-vibration motor comprises fixed frame, is placed in elastic supporting member for supporting optical member 2, balancing weight 3, permanent magnet 41 and the electromagnet 42 of fixed frame inside as Fig. 1.Fixed frame comprises shell 12 and the protecgulum 11 that combines with shell 12.Conductive connecting device 13 is circuit board structure independently; shell 12 is the structure of the equal opening in top and bottom, and protecgulum 11 and conductive connecting device 13 are incorporated into the top of shell 12 and the enclosed construction that protection micro-vibration motor internal unit is formed on the bottom respectively by the mode of welding or bonding.
Elastic supporting member for supporting optical member 2 is two independently flexure strips, comprises the connecting portion 21 of fixedlying connected with the short sidewalls 121 of square shell 12, for the micro-vibration motor provides the elasticity arm 22 of elastic force and the fixed part 23 of secure bond balancing weight 3.Elastic supporting member for supporting optical member 2 forms two fixed parts 23 from as axially symmetric structure respectively on two ends of elastic supporting member for supporting optical member 2, this fixed part 23 is used for fixing balancing weight 3.Preferably, the connecting portion 21 of elastic supporting member for supporting optical member 2 combines with the short sidewall 121 of shell 12 by bonding or fusing mode, fixed part 23 combines with balancing weight 3 by bonding or fusing mode, with the accuracy that guarantees that shell fragment is installed, has guaranteed the consistency of elastic force and entire product.
Balancing weight 3 bodies are provided with the fluting 32 that connects bottom surface on the balancing weight 3 and extend to the edge, and the terminal corresponding fixed permanent magnet 41 of fluting 32 forms the vibration unit of micro-vibration motor; 32 correspondences of slotting are simultaneously held electromagnet 42, and wherein the polarity end of the polarity end of permanent magnet 41 and electromagnet 42 is oppositely arranged.Balancing weight 3 is a non-magnet material, and density is greater than 7.8g/cm3, also comprises four connecting portions 31 with elastic supporting member for supporting optical member 2 secure bond at balancing weight 3, and connecting portion 31 is corresponding to making vibration unit be suspended in fixed frame inside with the fixed part 23 of elastic supporting member for supporting optical member 2.Also be provided with an outstanding extension 33 on balancing weight 3, extension 33 can increase the quality of balancing weight 33, strengthens the sense of shaking.
Adopt the micro-vibration motor of this electromagnet structure, need below balancing weight and permanent magnet, coil be installed, reduced the height of micro-vibration motor in the vertical direction, thereby made the thickness of micro-vibration motor littler, realized the slimming of product.This interaction force of electromagnet and permanent magnet that utilizes makes the working method of vibration unit vibration further simplify the manufacture craft of product, makes to produce to be easy to realize.
As shown in Figure 6, when feeding the electric current of a certain direction in the coil 421, electromagnet 42 can produce corresponding the two poles of the earth.The N utmost point of permanent magnet 41 is over against electromagnet 42; Under operating state shown in the figure, electromagnet 42 is when an end of permanent magnet 41 is the N utmost point, electromagnet 42 is subjected to interactional repulsive force with permanent magnet 41, because electromagnet 42 is fixed on the conductive connecting device 13, displacement with respect to fixed frame can not take place, therefore, permanent magnet 41 can be subjected to the power F of along continuous straight runs away from electromagnet 42, and drives the vibration unit vibration.
In like manner, as shown in Figure 7, when coil 421 was connected with the opposite electric current of direction, the direction of electromagnet 42 magnetic poles was reversed, can produce and permanent magnet 41 interactional attractions, thereby make permanent magnet 41 drive vibration unit to the direction motion of along continuous straight runs near electromagnet 42.
When feeding the AC signal of certain frequency in the coil 421, can produce the attraction or the repulsive force of alternation between electromagnet 42 and the permanent magnet 41, make permanent magnet 41 drive vibration units to along continuous straight runs near or move away from the direction of electromagnet 42.Under certain frequency, produce the stronger sense of shaking thereby resonance can take place vibration unit.
This interaction force of electromagnet and permanent magnet that utilizes makes the working method of vibration unit vibration further simplify the manufacture craft of product, makes to produce to be easy to realize.Simultaneously, the direction of magnetization of electromagnet is subjected to the control of coil, and operating state is more stable, thereby makes the micro-vibration motor that more stable operating state be arranged.
In the process of micro-vibration machine operation, the deformation degree of elastic supporting member for supporting optical member 2 is subjected to the influence of the Oscillation Amplitude of vibration unit.Under mechanical free state, the distance between micro-vibration motor permanent magnet 41 and the electromagnet 42 is greater than the largest deformation displacement of elastic supporting member for supporting optical member 2, can avoid like this that electromagnet 42 is pulled together with permanent magnet 41 when the micro-vibration machine operation.Simultaneously, for the extension 33 of avoiding balancing weight 3 produces different sound with shell 12 collisions, the utility model elastic buffering mechanism 5 that bonds in the end of the extension 33 of balancing weight 3, this elastic buffering mechanism 5 can avoid the end of extension 33 and shell 12 generation hard collisions to produce different sound for the bubble silk floss that has elasticity and the softer material of quality and make etc. effectively.
In the present embodiment, electromagnet also can be combined on the shell of unlike material by modes such as welding, bonding or mechanical fixation; Also can adopt other conductive connecting devices such as shell fragment, lead-in wire; Permanent magnet can adopt permanent magnetic materials such as magnetite or magnet; The micro-vibration motor also can wait other structure for circle; Change on these structure and materials is all in the protection range of present embodiment.
The utility model has effectively reduced the thickness of product, has realized the slimming of product, and production technology simply is easy to realize simultaneously, and can effectively improve the performance of product, makes product more stable.
Claims (10)
1. the micro-vibration motor comprises fixed frame, and permanent magnet supports described permanent magnet and makes described permanent magnet be suspended in the elastic supporting member for supporting optical member of fixed frame inside; Described fixed frame is provided with conductive connecting device; Described elastic supporting member for supporting optical member secure bond is on described fixed frame, it is characterized in that: described micro-vibration motor also comprises the electromagnet of being made up of coil and iron core, described electromagnet and described permanent magnet place on the same plane and described electromagnet is fixed on described micro-vibration motor, and positive pole on the described conductive connecting device and negative pole are electrically connected with two lead-in wires of coil respectively.
2. micro-vibration motor as claimed in claim 1 is characterized in that: the direction of magnetization of described electromagnet and the direction of magnetization of permanent magnet are oppositely arranged, and along with the variation of the AC signal that feeds in the coil and the active force of permanent magnet generation alternation.
3. micro-vibration motor as claimed in claim 2 is characterized in that: described micro-vibration motor also comprises the balancing weight that is fixed together with described permanent magnet.
4. micro-vibration motor as claimed in claim 3 is characterized in that: described balancing weight is the balancing weight of non-magnet material; Described balancing weight is provided with fluting, and described fluting correspondence is held described electromagnet and fixing described permanent magnet.
5. micro-vibration motor as claimed in claim 4 is characterized in that: the center at described balancing weight edge also is provided with extension, and described extension is provided with elastic buffering mechanism.
6. as described any micro-vibration motor of claim 1 to 5, it is characterized in that: described fixed frame comprises shell and protecgulum, described shell is the structure of the equal opening in top and bottom, described protecgulum is incorporated into the top of described shell, described conductive connecting device is circuit board structure independently, and described conductive connecting device is incorporated into the bottom of shell.
7. micro-vibration motor as claimed in claim 6 is characterized in that: described electromagnet is fixed on the described wiring board.
8. micro-vibration motor as claimed in claim 6 is characterized in that: the distance of described electromagnet and described permanent magnet is greater than the largest deformation displacement of described elastic supporting member for supporting optical member.
9. micro-vibration motor as claimed in claim 8, it is characterized in that: described elastic supporting member for supporting optical member is the flexure strip of pair of opposing, described elastic supporting member for supporting optical member is an axially symmetric structure, one end of described elastic supporting member for supporting optical member is fixed on the sidewall of described shell, and the other end is fixed on the connecting portion of described balancing weight.
10. micro-vibration motor as claimed in claim 9 is characterized in that: described micro-vibration motor is a square structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205413370U CN201789402U (en) | 2010-09-19 | 2010-09-19 | Subminiature vibrating motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205413370U CN201789402U (en) | 2010-09-19 | 2010-09-19 | Subminiature vibrating motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201789402U true CN201789402U (en) | 2011-04-06 |
Family
ID=43821352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205413370U Expired - Fee Related CN201789402U (en) | 2010-09-19 | 2010-09-19 | Subminiature vibrating motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201789402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958628A (en) * | 2010-09-19 | 2011-01-26 | 歌尔声学股份有限公司 | Micro vibration motor |
-
2010
- 2010-09-19 CN CN2010205413370U patent/CN201789402U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958628A (en) * | 2010-09-19 | 2011-01-26 | 歌尔声学股份有限公司 | Micro vibration motor |
| CN101958628B (en) * | 2010-09-19 | 2012-07-25 | 歌尔声学股份有限公司 | Micro vibration motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20120919 |