CN211880313U - Piezoelectric ceramic driver clamping structure, linear driving device and electronic equipment - Google Patents
Piezoelectric ceramic driver clamping structure, linear driving device and electronic equipment Download PDFInfo
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- CN211880313U CN211880313U CN202020621751.6U CN202020621751U CN211880313U CN 211880313 U CN211880313 U CN 211880313U CN 202020621751 U CN202020621751 U CN 202020621751U CN 211880313 U CN211880313 U CN 211880313U
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- elastic sheet
- shell fragment
- upper elastic
- clamping structure
- piezoelectric ceramic
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Abstract
The utility model discloses a piezoceramics driver clamping structure, linear drive device and electronic equipment, including last shell fragment and lower shell fragment, go up the shell fragment and include integrated into one piece's last shell fragment adds holding portion and last shell fragment placing portion, go up the horizontal setting of shell fragment placing portion, wherein go up the shell fragment placing portion and be the I shape, upward the ninety degrees of bending down of shell fragment placing portion left end forms the vertical portion of last shell fragment, upward ninety degrees of bending right of the vertical portion of shell fragment is connected with last shell fragment and adds holding portion; the lower elastic sheet comprises a lower elastic sheet adding and holding part and a lower elastic sheet placing part which are integrally formed, a lower elastic sheet vertical part extends upwards from the right end of the lower elastic sheet adding and holding part, and the top of the lower elastic sheet vertical part is bent rightwards by ninety degrees and is connected with the lower elastic sheet placing part; the upper elastic sheet of the utility model does not occupy the space of the side surface, and other parts, such as a magnet, a sensor and the like, can be placed on the side surface; the V-shaped clamping structure has better clamping stability.
Description
Technical Field
The utility model relates to a piezoelectric motor field specifically is piezoceramics driver clamping structure, linear drive device and electronic equipment.
Background
Piezoelectric motors are generally classified into ac piezoelectric motors and dc piezoelectric motors. The motion mode is divided into rotation and linear motion. The piezoelectric motor consists of two parts, namely a vibrating part and a moving part, and has no winding, magnet and insulating structure. The power density is much higher than that of the common motor, but the output power is limited, and the motor is preferably made into a light, thin and short type. Its output is low-speed large thrust (or moment), and can implement direct drive load. The motor has no magnetic field inside, and the mechanical vibration frequency is out of the audible range, so that the motor has little influence on the external electromagnetic interference and noise. Compared with the traditional electromagnetic motor, the piezoelectric ultrasonic motor has the following characteristics: the structure is simple, and the basic structure of the vibration device is a vibration part and a motion part; 2. the unit volume torque is large and is 10 times of that of a traditional motor with the same volume; 3. the low-speed performance is good, the rotating speed can be adjusted to zero, and large torque can be directly output at low speed; 4. the braking torque is large, and an additional brake is not needed; the power failure can be self-locked, and the like; 5. the mechanical time constant is small, the response is fast, and the control precision is high; 6. no magnetic field and electric field, no electromagnetic interference, no electromagnetic noise and the like;
in piezoceramics driver driven device, piezoceramics driver relies on the metal shrapnel centre gripping, and the shell fragment is 90 degrees vertical placements with lower shell fragment on current structure, goes up the shell fragment in the side of shell fragment down, leads to the unable utilization in side space.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a piezoceramics driver clamping structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a clamping structure of a piezoelectric ceramic driver comprises an upper elastic sheet and a lower elastic sheet, wherein the upper elastic sheet and the lower elastic sheet jointly hold the piezoelectric ceramic driver;
the upper elastic sheet comprises an upper elastic sheet clamping part and an upper elastic sheet placing part which are integrally formed, the upper elastic sheet placing part is horizontally arranged, the left end of the upper elastic sheet placing part is bent downwards by ninety degrees to form an upper elastic sheet vertical part, the joint of the upper elastic sheet placing part and the upper elastic sheet vertical part is in arc transition arrangement, the upper elastic sheet vertical part is bent rightwards by 90 degrees to be connected with the upper elastic sheet clamping part, and the joint of the upper elastic sheet vertical part and the upper elastic sheet clamping part is in arc transition arrangement;
the shell fragment includes integrated into one piece's lower shell fragment adds the portion of holding and the portion of placing of shell fragment down, and the left end that the shell fragment adds the portion of holding down extends and is provided with the horizontally horizontal extension section, and the right-hand member that the shell fragment adds the portion of holding down upwards extends and is equipped with the vertical portion of shell fragment down, and the top of the vertical portion of shell fragment is buckled right and is connected with the portion of placing of shell fragment down ninety degrees down.
Furthermore, the upper elastic sheet clamping part is in an inverted V shape.
Furthermore, the lower elastic sheet clamping part is V-shaped.
Furthermore, the lower elastic sheet placing part and the upper elastic sheet placing part are arranged in parallel.
Furthermore, the corners of the upper spring plate holding part and the lower spring plate holding part are both in arc transition arrangement.
Furthermore, the upper elastic sheet placing part is I-shaped, and an upper mounting hole is formed in the right side of the upper elastic sheet placing part.
Furthermore, a lower mounting hole is formed in the lower elastic sheet placing part.
A linear driving device comprises the piezoelectric ceramic driver clamping structure, a frame body, a zoom lens bracket, a focusing lens bracket, a guide mechanism and a piezoelectric ceramic driver;
the guide mechanism is used for carrying the zoom lens support and the focusing lens support and enabling the zoom lens support and the focusing lens support to slide on the guide mechanism, the guide mechanism comprises guide shafts and guide holes which are respectively formed in the zoom lens support and the focusing lens support, the two guide shafts are arranged in parallel, and two ends of each guide shaft are fixedly connected with the frame body; the zoom lens bracket and the focusing lens bracket are respectively used for carrying a zoom lens and a focusing lens, wherein the zoom lens bracket and the focusing lens bracket have the same structure and are arranged oppositely; the piezoelectric ceramic driver is fixedly arranged on the frame body, the piezoelectric ceramic driver comprises a driving shaft and a vibration generating component, the driving shaft is supported on the frame body, the driving shaft is fixed on the vibration generating component, vacant positions for the driving shaft to pass through are formed in the zoom lens support and the focusing lens support, and a piezoelectric ceramic driver clamping structure is arranged on each vacant position; the piezoelectric ceramic driver clamping structure is in frictional contact with the drive shaft.
Furthermore, the frame body is a rectangular frame body, the upper opening and the lower opening are arranged, cover plates are arranged at the upper end and the lower end of the frame body, and the cover plates are fastened with the frame body.
An electronic device comprises the linear driving device.
Compared with the prior art, the beneficial effects of the utility model are that:
the upper elastic sheet does not occupy the space of the side surface, and other parts can be placed on the side surface. For example, magnetite, sensor, etc.;
the V-shaped clamping structure has better clamping stability.
Drawings
Fig. 1 is a schematic structural diagram of a clamping structure of a piezoelectric ceramic actuator.
Fig. 2 is an exploded view of a clamping structure of a piezoceramic driver.
Fig. 3 is a schematic structural diagram of a clamping structure in the prior art.
Fig. 4 is an exploded view of a prior art clamping structure.
Fig. 5 is a structure of a linear driving apparatus.
Fig. 6 is a front view of a linear driving apparatus.
Fig. 7 is a plan view of a linear driving device.
Fig. 8 is a schematic view of an internal structure of a linear driving apparatus.
Fig. 9 is a plan view of an internal structure of a linear driving device.
Fig. 10 is a schematic diagram of a piezoelectric ceramic actuator in a linear driving device.
Fig. 11 is a schematic view of the structure of a vacant site in a linear driving apparatus.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1-4, a clamping structure for a piezoelectric ceramic actuator comprises an upper spring plate 100 and a lower spring plate 200,
the upper elastic sheet 100 comprises an upper elastic sheet clamping part 101 and an upper elastic sheet placing part 102 which are integrally formed, the upper elastic sheet placing part 102 is horizontally arranged, the upper elastic sheet placing part 102 is I-shaped, an upper mounting hole 103 is formed in the right side of the upper elastic sheet placing part 102, the left end of the upper elastic sheet placing part 102 is bent downwards by ninety degrees to form an upper elastic sheet vertical part 104, the joint of the upper elastic sheet placing part 102 and the upper elastic sheet vertical part 104 is in arc transition arrangement, the upper elastic sheet vertical part 104 is bent rightwards by 90 degrees to be connected with the upper elastic sheet clamping part 101, and the joint of the upper elastic sheet vertical part 104 and the upper elastic sheet clamping part 101 is in arc transition arrangement;
the lower elastic sheet 200 comprises a lower elastic sheet adding and holding part 201 and a lower elastic sheet placing part 202 which are integrally formed, the lower elastic sheet adding and holding part 201 is V-shaped, the left end of the lower elastic sheet adding and holding part 201 is provided with a horizontal extending section 203 in an extending mode, the right end of the lower elastic sheet adding and holding part 201 is provided with a lower elastic sheet vertical part 204 in an upward extending mode, the top of the lower elastic sheet vertical part 204 is bent rightwards for ninety degrees to be connected with the lower elastic sheet placing part 202, and a lower mounting hole 205 is formed in the lower elastic sheet placing part 202;
the lower spring plate placing part 202 and the upper spring plate placing part 102 are arranged in parallel, wherein corners of the upper spring plate clamping part 101 and the lower spring plate clamping part 201 are both in arc transition arrangement;
the upper spring plate 100 and the lower spring plate 200 jointly hold the piezoelectric ceramic driver 300;
the utility model discloses to go up the shell fragment from the side and place the adjustment to place the face that the face is parallel to each other with lower shell fragment, go up the shell fragment centre gripping position simultaneously and improve from dull and stereotyped structure and be V-arrangement groove spring structure.
Referring to fig. 5-11, a linear driving device includes the above piezoelectric ceramic actuator clamping structure, and further includes a frame 400, a zoom lens bracket 500, a focusing lens bracket 600, a guiding mechanism 700, and a piezoelectric ceramic actuator 300;
the frame body 400 is a rectangular frame body and is provided with an upper opening and a lower opening, the upper end and the lower end of the frame body 400 are provided with cover plates 401, and the cover plates 401 are buckled with the frame body 400;
specifically, the left side and the right side of the frame body are provided with buckling blocks 402, the left side and the right side of the cover plate 401 are bent by ninety degrees, and the bent parts are provided with buckling grooves 403 matched with the buckling blocks 402;
the guide mechanism 700 is used for carrying the zoom lens bracket 500 and the focus lens bracket 600 and enabling the zoom lens bracket 500 and the focus lens bracket 600 to slide on the guide mechanism 700, the guide mechanism 700 comprises a guide shaft 701 and guide holes 702 respectively formed in the zoom lens bracket 500 and the focus lens bracket 600, the two guide shafts 701 are arranged in parallel, and two ends of each guide shaft 701 are fixedly connected with the frame body 400;
the zoom lens bracket 500 and the focusing lens bracket 600 are respectively used for carrying a zoom lens and a focusing lens, wherein the zoom lens bracket 500 and the focusing lens bracket 600 have the same structure and are arranged oppositely;
the piezoelectric ceramic actuator 300 is fixedly mounted on the frame 400, the piezoelectric ceramic actuator 300 includes a driving shaft 301 and a vibration generating member 302,
the driving shaft 301 is supported by the frame 400, the driving shaft 301 is fixed to the vibration generating member 302,
the vibration generating member 302 is configured to vibrate the driving shaft 22 in the axial direction, and further drive the zoom lens holder 500 and the focus lens holder 600, so that the zoom lens holder 500 and the focus lens holder 600 move in the guiding axial direction;
the zoom lens bracket 500 and the focus lens bracket 600 may be in friction fit with the driving shaft 301, and the driving shaft 301 moves the lens bracket 2 along the axial direction in a vibration mode;
the zoom lens bracket 500 and the focus lens bracket 600 are both provided with a vacancy 900 for the driving shaft 301 to pass through, and the vacancy 900 is provided with a piezoelectric ceramic driver clamping structure; the piezo ceramic actuator clamping structure is in frictional contact with the drive shaft 301,
specifically, the bottom of the vacancy 900 is in a V shape and is used for attaching the lower spring plate 200, a lower mounting step 901 and an upper mounting step 902 are arranged on one side of the vacancy 900, the lower mounting step 901 is arranged corresponding to the lower spring plate placing part 202, a lower convex block 903 corresponding to the lower mounting hole 205 is also arranged on the lower mounting step 901, and generally, the lower mounting hole 205 and the lower convex block 903 are fixed by using resin or metal as a welding material;
the upper mounting step 902 is arranged corresponding to the upper elastic sheet placing part 102, an upper convex block 904 corresponding to the upper mounting hole 103 is also arranged on the upper mounting step, and the upper mounting hole 103 and the upper convex block 904 are fixed by using resin or metal as welding materials;
further, the upper mounting step 902 is further provided with a threaded hole 905, and the upper spring plate placing portion 102 is provided with a through hole corresponding thereto, where the upper spring plate is further fixed by a screw,
although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (10)
1. A clamping structure of a piezoelectric ceramic driver is characterized by comprising an upper elastic sheet and a lower elastic sheet, wherein the upper elastic sheet and the lower elastic sheet jointly hold the piezoelectric ceramic driver;
the upper elastic sheet comprises an upper elastic sheet clamping part and an upper elastic sheet placing part which are integrally formed, the upper elastic sheet placing part is horizontally arranged, the left end of the upper elastic sheet placing part is bent downwards by ninety degrees to form an upper elastic sheet vertical part, the joint of the upper elastic sheet placing part and the upper elastic sheet vertical part is in arc transition arrangement, the upper elastic sheet vertical part is bent rightwards by 90 degrees to be connected with the upper elastic sheet clamping part, and the joint of the upper elastic sheet vertical part and the upper elastic sheet clamping part is in arc transition arrangement;
the shell fragment includes integrated into one piece's lower shell fragment adds the portion of holding and the portion of placing of shell fragment down, and the left end that the shell fragment adds the portion of holding down extends and is provided with the horizontally horizontal extension section, and the right-hand member that the shell fragment adds the portion of holding down upwards extends and is equipped with the vertical portion of shell fragment down, and the top of the vertical portion of shell fragment is buckled right and is connected with the portion of placing of shell fragment down ninety degrees down.
2. The piezoceramic driver clamping structure of claim 1, wherein the upper spring plate clamping portion is in an inverted V-shape.
3. The clamping structure of claim 1, wherein the lower spring clip holding portion is V-shaped.
4. The clamping structure of claim 1, wherein the lower spring plate placing portion and the upper spring plate placing portion are disposed in parallel.
5. The clamping structure of claim 1, wherein the corners of the upper spring plate holding portion and the lower spring plate holding portion are both in arc transition arrangement.
6. The clamping structure of claim 1, wherein the upper spring plate placing portion is i-shaped, and an upper mounting hole is formed in the right side of the upper spring plate placing portion.
7. The clamping structure of claim 1, wherein the lower spring plate placing portion is provided with a lower mounting hole.
8. A linear driving apparatus, comprising the piezoelectric ceramic actuator holding structure according to any one of claims 1 to 7, further comprising a frame body, a zoom lens holder, a focus lens holder, a guide mechanism, and a piezoelectric ceramic actuator;
the guide mechanism is used for carrying the zoom lens support and the focusing lens support and enabling the zoom lens support and the focusing lens support to slide on the guide mechanism, the guide mechanism comprises guide shafts and guide holes which are respectively formed in the zoom lens support and the focusing lens support, the two guide shafts are arranged in parallel, and two ends of each guide shaft are fixedly connected with the frame body; the zoom lens bracket and the focusing lens bracket are respectively used for carrying a zoom lens and a focusing lens, wherein the zoom lens bracket and the focusing lens bracket have the same structure and are arranged oppositely; the piezoelectric ceramic driver is fixedly arranged on the frame body, the piezoelectric ceramic driver comprises a driving shaft and a vibration generating component, the driving shaft is supported on the frame body, the driving shaft is fixed on the vibration generating component, vacant positions for the driving shaft to pass through are formed in the zoom lens support and the focusing lens support, and a piezoelectric ceramic driver clamping structure is arranged on each vacant position; the piezoelectric ceramic driver clamping structure is in frictional contact with the drive shaft.
9. A linear actuator as claimed in claim 8, wherein the frame is a rectangular frame with openings at the top and bottom, and cover plates are provided at the top and bottom of the frame and fastened to the frame.
10. An electronic device, characterized in that it comprises a linear drive as claimed in any one of claims 8-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020621751.6U CN211880313U (en) | 2020-04-23 | 2020-04-23 | Piezoelectric ceramic driver clamping structure, linear driving device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020621751.6U CN211880313U (en) | 2020-04-23 | 2020-04-23 | Piezoelectric ceramic driver clamping structure, linear driving device and electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN211880313U true CN211880313U (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020621751.6U Active CN211880313U (en) | 2020-04-23 | 2020-04-23 | Piezoelectric ceramic driver clamping structure, linear driving device and electronic equipment |
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| Country | Link |
|---|---|
| CN (1) | CN211880313U (en) |
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- 2020-04-23 CN CN202020621751.6U patent/CN211880313U/en active Active
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