CN217240548U - Linear motor and electronic device - Google Patents
Linear motor and electronic device Download PDFInfo
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- CN217240548U CN217240548U CN202123447265.0U CN202123447265U CN217240548U CN 217240548 U CN217240548 U CN 217240548U CN 202123447265 U CN202123447265 U CN 202123447265U CN 217240548 U CN217240548 U CN 217240548U
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- linear motor
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- 229910052802 copper Inorganic materials 0.000 claims abstract description 36
- 239000010949 copper Substances 0.000 claims abstract description 36
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 238000013016 damping Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides a linear motor, which comprises a shell, a stator component and a vibrator component; the stator assembly comprises a copper bracket and a coil arranged on the copper bracket; the vibrator assembly is suspended in the shell through the elastic part and comprises a magnetic circuit system, and the magnetic circuit system comprises a first magnetic conduction plate, a second magnetic conduction plate and an annular magnetic yoke arranged between the first magnetic conduction plate and the second magnetic conduction plate; the first magnetic conduction plate, the second magnetic conduction plate and the annular magnet yoke are enclosed to form a cavity, and the coil and part of the copper support are located in the cavity. Utilize above-mentioned utility model to simplify assembly process to improve the magnetic field utilization ratio.
Description
Technical Field
The utility model relates to a transmission technical field, more specifically relates to a linear motor and electron device.
Background
With the development of communication technology, portable electronic products, such as mobile phones, handheld game consoles or handheld multimedia entertainment devices, have come into the lives of people. In these portable electronic products, a micro vibration motor is generally used for system feedback or tactile feedback, such as incoming call prompt of a mobile phone, vibration feedback of a game machine, and the like. However, with the trend of electronic products being lighter and thinner, various components inside the electronic products also need to adapt to the trend, and vibration motors are no exception.
At present, the vibration feedback motor technology is developing towards small volume, large vibration inductance, fast response, high magnetic utilization rate and the like, wherein the response time of the motor is taken as a main parameter, and the performance and the competitiveness of a product can be directly influenced by the length of the response time.
However, in the existing motor structure, damping materials such as foam and magnetic liquid are frequently used to meet the requirement of adjusting response time, and the stability and consistency effects are poor.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, an object of the present invention is to provide a linear motor and an electronic device to solve the problems of poor stability and consistency of the response time adjustment scheme of the existing motor, and the influence on the performance of the product. The utility model provides a linear motor, which comprises a shell, a stator component and a vibrator component; the stator assembly comprises a copper bracket and a coil arranged on the copper bracket; the vibrator assembly is suspended in the shell through the elastic part and comprises a magnetic circuit system, and the magnetic circuit system comprises a first magnetic conduction plate, a second magnetic conduction plate and an annular magnetic yoke arranged between the first magnetic conduction plate and the second magnetic conduction plate; the first magnetic conduction plate, the second magnetic conduction plate and the annular magnetic yoke are enclosed to form a cavity, and the coil and part of the copper support are located in the cavity.
In addition, the optional structure is that the copper bracket comprises a main body part, a limiting part arranged on the main body part, fixing parts positioned at two ends of the main body part, and an electric connecting plate arranged on any one of the fixing parts; the coil is wound on the limiting part and is conducted with the outside through the electric connecting plate.
Further, an alternative structure is that the housing includes a middle case, a first outer case provided at one end of the middle case, and a second outer case provided at the other end of the middle case; wherein, a positioning groove matched with the fixing part is arranged on the middle shell; the fixing part is fixed in the positioning groove in a limiting way.
In addition, the selectable structure is that the limiting part is positioned in the center of the main body part, and the arrangement direction of the limiting part is perpendicular to the arrangement direction of the main body part; wherein, the inside wall laminating of coil is on the lateral wall of spacing portion.
In addition, the optional structure is that two ends of the fixing part are provided with limiting bulges; when the fixed part is limited in the positioning groove, the limiting bulge is clamped on the outer side wall of the shell.
In addition, the optional structure is that the magnetic circuit system further comprises a magnet assembly arranged in the cavity, the magnet assembly is fixedly connected with the first magnetic conduction plate and the second magnetic conduction plate, and the coil is positioned in a gap formed by the magnet assembly and the annular magnetic yoke at intervals.
In addition, the optional structure is that the magnet assembly further comprises a central magnetic conduction plate, and a first magnet and a second magnet which are symmetrically arranged on two sides of the central magnetic conduction plate, wherein the first magnetic conduction plate and the second magnetic conduction plate are symmetrically arranged on the outer side of the magnet assembly.
In addition, the optional structure is that two elastic pieces are provided, the two elastic pieces are arranged at two ends of the vibrator assembly along the vibration direction of the vibrator assembly, and the elastic pieces are connected with the vibrator assembly through the fixing block.
In addition, an optional structure is that an avoiding hole is formed in the limiting part, and the central magnetic conduction plate, the first magnet and the second magnet are arranged in the avoiding hole; and the height of the coil is greater than the thickness of the central magnetic conduction plate and less than the sum of the heights of the central magnetic conduction plate, the first magnet and the second magnet.
On the other hand, the utility model also provides an electronic device, including above-mentioned linear motor.
According to the above technical solution, the linear motor and the electronic device of the present invention, the stator assembly includes a copper bracket and a coil disposed on the copper bracket, the vibrator assembly includes a magnetic circuit system, the magnetic circuit system includes a first magnetic conductive plate, a second magnetic conductive plate and an annular magnetic yoke disposed between the first magnetic conductive plate and the second magnetic conductive plate; first magnetic conduction board, second magnetic conduction board with the annular yoke encloses to close and forms the cavity, and coil and part copper support are located the cavity, can arrange the copper support in the closed magnetic field, improve the magnetic field utilization ratio of product, and the equipment is simple, and the magnetic leakage rate is low, and is obvious to response time's modulation effect, can effectively improve user's sense of touch and experience.
Drawings
Other objects and results of the invention will be more apparent and readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the invention is more fully understood. In the drawings:
fig. 1 is an exploded view of a linear motor according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a linear motor according to an embodiment of the present invention in the X-axis direction;
fig. 3 is a cross-sectional view of a linear motor according to an embodiment of the present invention in the Y-axis direction;
fig. 4 is a schematic structural view of a copper bracket of a linear motor according to an embodiment of the present invention;
fig. 5 is a side view one after hiding the middle shell according to an embodiment of the present invention;
fig. 6 is a second side view of the hidden middle shell according to the embodiment of the present invention.
Wherein the reference numerals include: the coil comprises a first shell 11, a middle shell 12, a second shell 13, a first elastic connecting piece 21, a second elastic connecting piece 22, a copper support 3, a limiting part 31, a fixing part 32, an electric connecting plate 33, a coil 4, a first fixing block 51, a second fixing block 52, a first magnetic conducting plate 61, a second magnetic conducting plate 62, a first magnet 71, a second magnet 72, a central magnetic conducting plate 8 and an annular magnet yoke 9.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
For the purpose of describing the structure of the linear motor of the present invention in detail, the following description will discuss specific embodiments of the present invention in detail with reference to the accompanying drawings.
It should be noted that all the directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, if the specific posture is changed, the directional indicator is changed accordingly.
Fig. 1 to 3 respectively show an exploded structure of a linear motor according to an embodiment of the present invention, and a sectional structure in X-axis and Y-axis directions; fig. 4 shows the schematic structure of the copper support according to the embodiment of the present invention, and fig. 5 and 6 respectively show the side-looking structure behind the hidden middle shell according to the embodiment of the present invention.
As shown collectively in fig. 1 to 6, the novel motor of the embodiment of the present invention includes a housing, a stator assembly, and a vibrator assembly; the stator assembly comprises a copper bracket and a coil 4 arranged on the copper bracket 3; the vibrator component is suspended in the shell through an elastic part and comprises a magnetic circuit system, wherein the magnetic circuit system comprises a first magnetic conduction plate 61, a second magnetic conduction plate 62 and an annular magnetic yoke 9 arranged between the first magnetic conduction plate 61 and the second magnetic conduction plate 62; the first magnetic conduction plate 61, the second magnetic conduction plate 62 and the annular magnet yoke 9 are enclosed to form a cavity, the coil and part of the copper bracket are positioned in the cavity, and the coil 4 is arranged in the closed magnetic field.
Specifically, copper support 3 further includes the level setting and has the main part of dodging the hole, the spacing portion 31 of bellied of setting on the main part, the fixed part 32 that is located the both ends of main part, and set up the electric connection board 33 on arbitrary fixed part 32, coil 4 twines or pastes and fixes on spacing portion 31, and switch on with the external world through electric connection board 33, compare traditional slice electromagnetic damping, this annular copper support 3 can be arranged in totally and seal the magnetic field, the magnetic line of force can be the maximize passes this copper support 3, the effectual adjustment response time of height and thickness of accessible regulation copper support 3, the modulation effect is obvious.
The copper support 3 can be an annular copper support, the limiting portion 31 is located at the central position of the main body, the extending direction of the limiting portion 31 is perpendicular to the setting direction of the main body, the inner side wall of the coil 4 is attached to the outer side wall of the limiting portion 31, the coil 4 is located through the joint of the limiting portion 31 and the main body, for example, glue can be coated on the standing surface of the limiting portion 31 of the annular support 3 to support and fix the coil 4, the magnetic circuit system can be arranged in a through hole located in the limiting portion 31, the copper support 3 is processed to be arranged in the whole closed magnetic field, the electric connecting plate 33 located on the copper support 3 is located on the outer side wall of the shell, the coil 4 is conducted with the electric connecting plate 33 through a lead, and connection between the coil 4 and an external circuit is achieved through the electric connecting plate.
Specifically, the housing further comprises a middle shell 12, a first outer shell 11 arranged at one end of the middle shell 12, and a second outer shell 13 arranged at the other end of the middle shell 12, wherein the first outer shell 11 and the second outer shell 13 are respectively in adaptive connection with the middle shell 12 to form an accommodating cavity for accommodating the stator assembly and the vibrator assembly; in addition, a positioning groove adapted to the fixing portion 32 is further disposed on the middle shell 12, the two fixing portions 32 are respectively limited in the positioning groove, and the positioning groove can also be understood as two avoiding end surfaces for fixing the fixing portions 32.
Wherein, for the realization to copper support 3's accurate positioning, simplify the assembly process, can also set up spacing arch respectively on each fixed part 32, when fixed part 32 is spacing in the constant head tank, spacing arch card is on the lateral wall of casing.
The utility model discloses an in the embodiment in the elastic component in the vibrator subassembly be provided with two, two elastic components are located the both ends of vibrator subassembly along the vibration direction of vibrator subassembly, and the elastic component passes through the fixed block with the vibrator subassembly and is connected, and the elastic component specifically can be including fixing first elastic connection spare 21, the second elastic connection spare 22 on the casing to and set up the magnetic circuit between first elastic connection spare 21 and second elastic connection spare 22.
Further, in order to improve the magnetic field shielding effect of the shell and reduce the magnetic leakage rate of the whole product, the shell can be set as a magnetic conduction piece, the shell surrounds the whole magnetic circuit system, and then the vibration performance of the linear motor is improved.
Specifically, magnetic circuit still includes the magnet subassembly of locating in the cavity (or hold the chamber), and magnet subassembly and first magnetic conduction board 61, second magnetic conduction board 62 fixed connection, and coil 4 is located the clearance that magnet subassembly and annular yoke 9 interval formed.
Further, the magnet assembly further includes a central magnetic conductive plate 8, and a first magnet 71 and a second magnet 72 symmetrically disposed on two sides of the central magnetic conductive plate 8, and the first magnetic conductive plate 61 and the second magnetic conductive plate 62 are symmetrically disposed on the outer side of the magnet assembly, in other words, the magnetic circuit system further includes the central magnetic conductive plate 8, and a first magnet 71 and a second magnet 72 symmetrically disposed on two sides of the central magnetic conductive plate 8, and the first magnetic conductive plate 61 and the second magnetic conductive plate 62 are symmetrically disposed on the outer side magnetic conductive plates of the first magnet 71 and the second magnet 72; wherein, the fixing block for connecting the elastic component and the vibrator component comprises a first fixing block 51 and a second fixing block 52, one side of the first magnetic conduction plate 61 is fixed on the outer side of the first magnet 71, the other side is fixedly connected with the first elastic connecting component 21 through the first fixing block 51, one side of the second magnetic conduction plate 62 is fixed on the outer side of the second magnet 72, the other side is fixedly connected with the second elastic connecting component 22 through the second fixing block 52, the first elastic connecting component 21 and the second elastic connecting component 22 can be respectively fixed on the inner side walls of the first shell 11 and the second shell 13 in an attaching manner, and then select the whole magnetic circuit to hang in the casing through elastic connecting piece to make it can carry out up-and-down motion (this direction of motion can be understood as the Z axle direction) along elastic connecting piece's axis direction, corresponding X axle direction and Y axle direction are the direction that is perpendicular to this direction of motion respectively.
In order to form a closed magnetic circuit system, the first magnetic conductive plate 61 and the second magnetic conductive plate 62 are further provided with an annular magnetic yoke 9 arranged around the central magnetic conductive plate 8, the first magnet 71 and the second magnet 72; wherein, an accommodating space is formed between the annular magnetic yoke 9 and the central magnetic conduction plate 8, the first magnet 71 and the second magnet 72, an avoiding groove corresponding to the fixing part 32 of the copper bracket 3 is further arranged on the annular magnetic yoke 9, the coil 4 is suspended in the accommodating space through the copper bracket 3, and meanwhile, the annular magnetic yoke 9 and the coil 4 are arranged at intervals.
In addition, the central magnetic conducting plate 8, the first magnet 71 and the second magnet 72 are all arranged through the avoiding hole of the copper bracket 3; moreover, the height of the coil 4 is greater than the thickness of the central magnetic conductive plate 8 and less than the sum of the heights of the central magnetic conductive plate 8, the first magnet 71 and the second magnet 72, and the specific height of the coil 4 can be set according to application scenarios and requirements, and is not limited to the specific size shown in the drawings.
Corresponding to above-mentioned linear motor, the utility model discloses still provide an electronic device, including above-mentioned linear motor, the description of linear motor embodiment can be referred to specific electronic device's embodiment, and the no longer redundance is here repeated one by one.
Can find out through above-mentioned embodiment, the utility model provides a linear motor and electron device arranges the copper support in the stator module in the confined magnetic field completely for magnetic line of force can pass the coil that is located the copper support by the biggest area, can realize the adjustment to product response time through height or thickness etc. of adjusting the copper support, not only can improve the magnetic field utilization ratio, and the equipment is simple, and the magnetic leakage rate is low, and is obvious to response time's modulation effect, can effectively improve user's sense of touch and experience.
The linear motor and the electronic device according to the present invention have been described above by way of example with reference to the accompanying drawings. However, it should be understood by those skilled in the art that various modifications can be made to the linear motor and the electronic device provided in the present invention without departing from the scope of the invention. Therefore, the scope of the present invention should be determined by the content of the appended claims.
Claims (10)
1. A linear motor comprising a housing, a stator assembly and a vibrator assembly; wherein,
the stator assembly comprises a copper bracket and a coil arranged on the copper bracket;
the vibrator assembly is suspended in the shell through an elastic part and comprises a magnetic circuit system, wherein the magnetic circuit system comprises a first magnetic conduction plate, a second magnetic conduction plate and an annular magnetic yoke arranged between the first magnetic conduction plate and the second magnetic conduction plate;
the first magnetic conduction plate, the second magnetic conduction plate and the annular magnet yoke are enclosed to form a cavity, and the coil and part of the copper support are located in the cavity.
2. The linear motor of claim 1,
the copper support comprises a main body part, a limiting part arranged on the main body part, fixing parts positioned at two ends of the main body part, and an electric connecting plate arranged on any one fixing part;
the coil is wound on the limiting part and is conducted with the outside through the electric connecting plate.
3. Linear motor according to claim 2,
the shell comprises a middle shell, a first outer shell arranged at one end of the middle shell and a second outer shell arranged at the other end of the middle shell; wherein,
a positioning groove matched with the fixing part is arranged on the middle shell;
the fixing part is fixed in the positioning groove in a limiting manner.
4. The linear motor of claim 2,
the limiting part is positioned in the center of the main body part, and the arrangement direction of the limiting part is vertical to that of the main body part; wherein,
the inner side wall of the coil is attached to the outer side wall of the limiting portion.
5. The linear motor of claim 3,
limiting bulges are arranged at two ends of the fixing part;
when the fixing part is limited in the positioning groove, the limiting bulge is clamped on the outer side wall of the shell.
6. The linear motor of claim 4, wherein the magnetic circuit further comprises a magnet assembly disposed within the cavity, the magnet assembly being fixedly coupled to the first and second magnetically permeable plates, the coil being disposed within a gap formed by the magnet assembly and the annular yoke.
7. The linear motor of claim 6,
the magnet assembly further comprises a central magnetic conduction plate, a first magnet and a second magnet, wherein the first magnet and the second magnet are symmetrically arranged on two sides of the central magnetic conduction plate, and the first magnetic conduction plate and the second magnetic conduction plate are symmetrically arranged on the outer side of the magnet assembly.
8. The linear motor of claim 1,
the elastic component is two, two the elastic component is located along the vibration direction of oscillator subassembly the both ends of oscillator subassembly, the elastic component with the oscillator subassembly passes through the fixed block and is connected.
9. The linear motor of claim 7,
an avoidance hole is formed in the limiting part, and the central magnetic conduction plate, the first magnet and the second magnet are arranged in the avoidance hole; and,
the height of the coil is greater than the thickness of the central magnetic conduction plate and less than the sum of the heights of the central magnetic conduction plate, the first magnet and the second magnet.
10. An electronic device comprising a linear motor according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123447265.0U CN217240548U (en) | 2021-12-31 | 2021-12-31 | Linear motor and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123447265.0U CN217240548U (en) | 2021-12-31 | 2021-12-31 | Linear motor and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217240548U true CN217240548U (en) | 2022-08-19 |
Family
ID=82828263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123447265.0U Active CN217240548U (en) | 2021-12-31 | 2021-12-31 | Linear motor and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217240548U (en) |
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2021
- 2021-12-31 CN CN202123447265.0U patent/CN217240548U/en active Active
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