Frame assembly and frame thereof

Abstract

The utility model discloses a frame assembly and a frame thereof, the frame comprises an annular frame, a limiting plate and a piezoelectric mechanism, the annular frame is used for installing a carrier, the limiting plate is connected to the bottom side of the annular frame and located at the bottom side of the carrier, the limiting plate is provided with an avoiding hole, and the avoiding hole is aligned with a lens in the carrier. The piezoelectric mechanism is connected to one side of the annular frame in the first direction, and a friction rod of the piezoelectric mechanism protrudes out of the inner wall of the annular frame and abuts against the carrier.

Description

Technical Field

[0001] The utility model relates to the technical field of optical element driving, in particular to a frame assembly and a frame thereof. Background Art

[0002] With the development of technology, many electronic devices (such as smart phones or digital cameras) now have the function of taking photos or recording videos. These electronic devices are becoming more and more popular and are developing in the direction of convenient and lightweight designs to provide users with more choices.

[0003] Some electronic devices with camera or video recording functions are provided with a lens driving mechanism to drive the optical components of the lens to move, thereby achieving an automatic focusing function.

[0004] In the prior art, magnets and coils are generally used to cooperate to drive the movement of a carrier in a lens driving mechanism. The coil is installed on the carrier and the magnet is installed on the frame. The circuit structure is complex and the magnet is heavy and occupies more internal space, which is not conducive to the lightweight design of the lens driving mechanism. Utility Model Content

[0005] The utility model aims to provide a frame assembly and a frame thereof to solve the problems of the prior art.

[0006] In order to solve the above technical problems, the implementation mode of the utility model provides a framework, which includes:

[0007] An annular frame, the annular frame is used to install the carrier;

[0008] a limiting plate, the limiting plate being connected to the bottom side of the annular frame and being located at the bottom side of the carrier, the limiting plate being provided with a avoidance hole, the avoidance hole being aligned with the lens in the carrier; and

[0009] A piezoelectric mechanism is connected to one side of the annular frame along the first direction and a friction bar of the piezoelectric mechanism protrudes from an inner wall of the annular frame and abuts against the carrier.

[0010] In one embodiment, the annular frame includes:

[0011] A first side, the first side is in a plate shape extending along a second direction, the second direction being perpendicular to the first direction;

[0012] a second side, the second side being in a plate shape extending along the second direction and being arranged opposite to the first side along the first direction;

[0013] a third side, the third side extending along the first direction and having two ends connected to the first side and the second side respectively; and

[0014] a fourth side, the fourth side extending along the first direction and having two ends connected to the first side and the second side respectively;

[0015] The piezoelectric mechanism is connected to the third side;

[0016] The fourth side is provided with a first guide groove, and the first guide groove extends along the first direction or along the vertical direction.

[0017] In one embodiment, the piezoelectric mechanism is located at the center of the third side along the first direction.

[0018] In one embodiment, an inner wall of the third side is provided with a mounting groove, and a portion of the piezoelectric mechanism is located in the mounting groove.

[0019] In one embodiment, the mounting slot comprises:

[0020] an outer groove formed by a depression of an outer wall of the third side; and

[0021] an inner groove, wherein the inner groove is formed by recessing a portion of a side wall of the outer groove along the second direction;

[0022] The piezoelectric mechanism comprises:

[0023] an elastic member, wherein the elastic member is located in the outer groove and connected to a side wall of the outer groove along the second direction;

[0024] a piezoelectric block, the piezoelectric block being located in the inner groove and connected to the elastic member; and

[0025] The friction rod has an outer end connected to the piezoelectric block and an inner end protruding from the inner wall of the third side.

[0026] In one embodiment, at least two of the first guide grooves are located on both sides of the fourth side along the first direction.

[0027] In one embodiment, at least two of the first guide grooves are arranged at intervals along the vertical direction.

[0028] The utility model also relates to a frame assembly, which comprises:

[0029] The framework mentioned above;

[0030] The carrier is located in the annular frame and has a bottom end against the limiting plate, and the carrier is movably connected to the annular frame.

[0031] In one embodiment, the carrier is rollingly connected to the annular frame.

[0032] In one embodiment, the frame assembly further comprises a ball bearing;

[0033] A first guide groove is provided on a side of the annular frame opposite to the piezoelectric mechanism, and the first guide groove extends along the first direction or along the vertical direction;

[0034] A second guide groove is provided on an outer wall of a side of the carrier corresponding to the first guide groove, the second guide groove is aligned with a portion of the first guide groove along a second direction, and the second direction is perpendicular to the first direction;

[0035] The ball bearings are located in the first guide groove and the second guide groove.

[0036] The utility model can realize the focusing and anti-shake of the lens by using the piezoelectric mechanism, and the piezoelectric mechanism basically does not occupy the internal space and has a light weight, and can ensure the stable operation of the frame and the carrier in combination with the ball bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 and Figure 2 It is an exploded view of a lens driving mechanism according to an embodiment of the utility model.

[0038] Figure 3 yes Figure 1 A perspective view of the base, frame, carrier and two piezoelectric mechanisms in the illustrated embodiment.

[0039] Figure 4 yes Figure 1 An exploded view of the lens drive mechanism in the illustrated embodiment.

[0040] Figure 5 yes Figure 1 Exploded view of the base, frame, carrier and two piezoelectric mechanisms in the illustrated embodiment.

[0041] Figure 6 yes Figure 1 A perspective view of the carrier in the illustrated embodiment.

[0042] Figure 7 yes Figure 1 Assembly diagram of the lens drive mechanism in the illustrated embodiment.

[0043] Figure 8 yes Figure 7 A cross-sectional view of the lens driving mechanism along line AA in the illustrated embodiment.

[0044] Fig. 9 yes Figure 7 A cross-sectional view of the lens driving mechanism along line BB in the illustrated embodiment.

[0045] Figure numerals: 100, lens driving mechanism; 1, base; 11, first side plate; 111, first rolling groove; 12, second side plate; 121, mounting groove; 122, second avoidance gap; 13, third side plate; 131, first avoidance gap; 14, fourth side plate; 15, bottom plate; 16, circuit board; 17, first avoidance hole; 2, frame; 21, first side; 211, second rolling groove; 22, second side; 23, third side; 24, fourth side; 25, limit plate; 251, second avoidance hole; 3, carrier; 31, second guide groove; 4, first piezoelectric mechanism; 41, elastic member; 42, piezoelectric block; 43, friction rod; 5, second piezoelectric mechanism; 6, first ball; 7, second ball; 8, housing; 81, light-shielding hole; DETAILED DESCRIPTION

[0046] In order to make the purpose, technical scheme and advantages of the utility model clearer, the various embodiments of the utility model will be described in detail below with reference to the accompanying drawings. However, it can be understood by those skilled in the art that in the various embodiments of the utility model, many technical details are provided in order to enable readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical schemes claimed for protection in the claims of the present application can be implemented.

[0047] Unless the context requires otherwise, throughout the specification and claims, the word "comprise" and variations such as "include" and "have" should be construed in an open, inclusive sense, ie, should be interpreted as "including, but not limited to."

[0048] The following will be combined with the accompanying drawings to describe the various embodiments of the present invention in detail, so as to more clearly understand the purpose, characteristics and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0049] References throughout the specification to "one embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0050] As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and / or" unless the context clearly dictates otherwise.

[0051] In the following description, in order to clearly demonstrate the structure and working mode of the utility model, many directional words will be used for description, but the words "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", "down", etc. should be understood as convenient terms and should not be understood as restrictive terms.

[0052] The utility model relates to a lens driving mechanism 100, which includes a base 1, a frame 2, two piezoelectric mechanisms, a carrier 3 and a shell 8, wherein the base 1 includes a bottom plate 15, a first side plate 11, a second side plate 12, a third side plate 13, a fourth side plate 14 and a circuit board 16, wherein the shell 8 is connected to the top of the base 1 and the top wall of the shell 8 is provided with a light-shielding hole 81, and the light-shielding hole 81 is aligned with the lens in the carrier 3 to avoid light entering the lens. The frame 2 is located in the base 1 and can move in the base 1. The frame 2 is annular, and the carrier 3 is installed in the ring of the frame 2. The carrier 3 is used to install the lens, and the carrier 3 can drive the lens to move along the optical axis direction to adjust the focal length. The carrier 3 and the frame 2 can also move relative to each other in the first direction or the second direction. The first direction and the second direction are perpendicular to the optical axis direction of the lens, and the first direction and the second direction are also perpendicular to each other. Figure 1 In the illustrated embodiment, the optical axis direction is a vertical direction, and the first direction and the second direction are two directions perpendicular to each other and in a horizontal direction.

[0053] exist Figure 1-6 In the specific embodiment shown, the bottom plate 15 is a rectangular plate with a avoidance hole in the center, which is defined as a first avoidance hole 17. The first avoidance hole 17 is aligned with the light-shielding hole 81 of the housing 8 in the vertical direction to prevent the light from the lens from being projected into the sensor.

[0054] The first side plate 11, the second side plate 12, the third side plate 13 and the fourth side plate 14 are all rectangular plates, and the bottom ends of the first side plate 11, the second side plate 12, the third side plate 13 and the fourth side plate 14 are all connected to the bottom plate 15 and are respectively located at the four side edges of the bottom plate 15. Specifically, the first side plate 11 and the second side plate 12 are both extended in the second direction and are arranged oppositely in the first direction, and the bottom ends of the first side plate 11 and the second side plate 12 are connected to the two side edges of the bottom plate 15 along the first direction. The third side plate 13 and the fourth side plate 14 are both extended in the first direction and are arranged oppositely in the second direction, and the bottom ends of the third side plate 13 and the fourth side plate 14 are respectively connected to the two side edges of the bottom plate 15 along the second direction. The two ends of the first side plate 11, the second side plate 12, the third side plate 13 and the fourth side plate 14 are connected to each other to form an annular frame structure, and the carrier 3 is located in the annular frame.

[0055] In some embodiments, only the first side plate 11 and the second side plate 12 may be provided, wherein the second side plate 12 is used to install the first piezoelectric mechanism 4, and the second side plate 12 and the first side plate 11 are arranged opposite to each other, and are used to be connected with the frame 2 in a rolling manner, and can also limit the range of motion of the frame 2. As a preferred solution, the third side plate 13 and the fourth side plate 14 are respectively connected to the two ends of the first side plate 11 and the second side plate 12, which can increase the stability of the first side plate 11 and the second side plate 12 and the stability of the frame 2.

[0056] The frame 2 is located in an annular frame structure surrounded by the first side plate 11 , the second side plate 12 , the third side plate 13 and the fourth side plate 14 , and can move in the annular frame along the first direction or the second direction to balance the shaking of the lens in the carrier 3 .

[0057] Among the two piezoelectric mechanisms of the present invention, one of the piezoelectric mechanisms is defined as a first piezoelectric mechanism 4, and the other is defined as a second piezoelectric mechanism 5, wherein the first piezoelectric mechanism 4 is connected to the second side plate 12, and the first piezoelectric mechanism 4 can drive the frame 2 to move along the second direction or along the vertical direction. Specifically, the inner wall of the second side plate 12 is provided with a mounting groove, which is defined as a first mounting groove 121, and the first mounting groove 121 is formed by the inner wall of the second side plate 12 being recessed to a preset depth or penetrating the second side plate 12.

[0058] exist Figure 4 In the illustrated embodiment, the first piezoelectric mechanism 4 includes an elastic member 41, a piezoelectric block 42 and a friction rod 43. The elastic member 41 and the piezoelectric block 42 are located in the first mounting groove 121. The elastic member 41 is a sheet-like structure and is located near the outer side of the first mounting groove 121. The piezoelectric block 42 is connected to the inner side of the elastic member 41. The friction rod 43 extends along a first direction and the outer end is connected to the piezoelectric block 42 and is located in the first mounting groove 121. The inner end extends beyond the inner wall of the second side plate 12 and abuts against the frame 2.

[0059] Optionally, the first mounting groove 121 penetrates the second side plate 12 along the first direction and is divided into a first section and a second section that are connected to each other along the first direction, wherein the first section is formed by a depression of the inner wall of the second side plate 12 along the first direction, and the second section is formed by a depression of the outer wall of the second side plate 12 along the first direction, and the size of the second section along the second direction is greater than the size of the first section along the second direction, or the size of the second section along the vertical direction is greater than the size of the first section along the vertical direction. The first section can also be regarded as being formed by a partial depression of the inner wall of the second section along the first direction to the inner wall of the second side plate 12.

[0060] The elastic member 41 is a sheet-like structure and is located in the second section. The elastic member 41 can be connected to the inner wall of the second section along the first direction. The elastic member 41 is elastic and can produce a certain frequency of deformation after being energized. The piezoelectric block 42 is block-shaped and located in the first section. The piezoelectric block 42 is connected to the inner side of the elastic member 41 to stabilize the deformation of the elastic member 41. The axis of the friction rod 43 extends along the first direction and one end is connected to the piezoelectric block 42, and the other end protrudes from the inner wall of the second side plate 12 to abut against the frame 2.

[0061] After the elastic member 41 is energized, it can generate high-frequency deformation, thereby driving the friction rod 43 to vibrate, and the friction rod 43 can drive the frame 2 to move in the second direction after vibration. In some embodiments, the deformation of the elastic member 41 and the vibration of the friction rod 43 can be changed by changing the current, thereby changing the movement direction of the frame 2, for example, the frame 2 can be driven to move in the vertical direction, and the frame 2 can also drive the carrier 3 to move in the vertical direction, thereby realizing the focusing function.

[0062] Optionally, if there is enough space, the first piezoelectric mechanism 4 can also be directly connected to the inner wall of the second side plate 12, or the first mounting groove 121 is recessed into the inner wall of the second side plate 12 to a preset depth but does not penetrate the second side plate 12, the elastic member 41 and the piezoelectric block 42 are respectively arranged in the first mounting groove 121, the friction rod 43 is located outside the first mounting groove 121 and connected to the piezoelectric block 42, the elastic member 41 can be connected to the inner wall of the first mounting groove 121 and can generate high-frequency vibration in the first mounting groove 121, that is, there needs to be enough space in the first mounting groove 121 to allow the elastic member 41 to deform. Of course, Figure 1-6 The illustrated embodiment is a preferred solution of the present invention, which can reduce the space occupied by the first piezoelectric mechanism 4 and reduce the volume of the lens driving mechanism 100 .

[0063] Furthermore, the first piezoelectric mechanism 4 is located at the center position of the second side plate 12 along the second direction, and the frame 2 is a rectangular frame structure, that is, the friction rod 43 of the first piezoelectric mechanism 4 just rests against the center of the opposite side of the frame 2 and the second side plate 12, which makes it easier to evenly drive the frame 2 to move along the second direction and avoid tilting movement of the frame 2.

[0064] In addition, the outer surface of the elastic member 41 is substantially flush with the outer surface of the second side plate 12 and does not protrude from the outer surface of the second side plate 12 , that is, it does not affect the installation of the housing 8 .

[0065] In order to enhance the stability of the movement of the frame 2, the side of the frame 2 facing away from the second side plate 12 is rollingly connected to the first side plate 11, that is, the side of the frame 2 opposite to the first side plate 11 is rollingly connected to the first side plate 11 through a ball, and the ball is defined as the first ball 6.

[0066] Specifically, Figure 4 and Figure 5 As shown, the inner wall of the first side plate 11 is provided with a first rolling groove 111 extending along the second direction, the depth of the first rolling groove 111 is smaller than the diameter of the first ball 6 , and the first ball 6 is located in the first rolling groove 111 and can roll in the first rolling groove 111 .

[0067] The frame 2 and the outer wall of one side of the first side plate 11 are provided with a second rolling groove 211 extending in the second direction. The second rolling groove 211 and the first rolling groove 111 are arranged opposite to each other in the first direction. A part of the first rolling groove 111 and another part of the first rolling groove 211 are located in the first rolling groove 111, so that the frame 2 can roll relative to the base 1 in the first direction. In addition, the size of the first rolling groove 111 or the second rolling groove 211 in the vertical direction is larger than the diameter of the first rolling ball 6, that is, the diameter of at least one of the first rolling groove 111 and the second rolling groove 211 in the vertical direction is larger than the diameter of the first rolling ball 6, so that the first rolling ball 6 can be allowed to roll in the first rolling groove 111 or the second rolling groove 211 in the vertical direction, that is, the frame 2 can move relative to the base 1 in the vertical direction.

[0068] exist Figure 4 In the illustrated embodiment, the frame 2 includes an annular frame and a limiting plate 25. The limiting plate 25 is connected to the inner wall of the annular frame and is located at the bottom of the annular frame and is provided with a avoidance hole, which is a second avoidance hole 251. The second avoidance hole 251 and the first avoidance hole 17 and the light-shielding hole 81 of the housing 8 are aligned in the vertical direction and are all aligned with the lens. The carrier 3 is located in the annular frame and on the top surface of the limiting plate 25. When the frame 2 moves in the vertical direction, the limiting plate 25 can carry the carrier 3 to move in the vertical direction.

[0069] The annular frame is a rectangular annular frame and includes a first side 21, a second side 22, a third side 23 and a fourth side 24. The first side 21, the second side 22, the third side 23 and the fourth side 24 are all rectangular plates and the first side 21 and the second side 22 extend along the second direction, and the third side 23 and the fourth side 24 extend along the first direction. The first side 21 and the second side 22 are arranged oppositely along the first direction, the third side 23 and the fourth side 24 are arranged oppositely along the second direction, the first side 21 and the first side plate 11 of the base 1 are arranged oppositely, the second side 22 and the second side plate 12 are arranged oppositely, the third side 23 and the third side plate 13 are arranged oppositely, and the fourth side 24 and the fourth side plate 14 are arranged oppositely. The friction rod 43 of the first piezoelectric mechanism 4 abuts against the second side 22.

[0070] The second rolling groove 211 is disposed on the outer wall of the first side 21. Figure 4In the illustrated embodiment, the outer wall of the first side 21 is provided with four second rolling grooves 211, wherein one pair of the second rolling grooves 211 is located near one end of the first side 21 along the second direction and arranged at intervals in the vertical direction, and another pair of the second rolling grooves 211 is located near the other end of the first side 21 along the second direction and also arranged at intervals in the vertical direction. The inner wall of the first side plate 11 is provided with two pairs of first rolling grooves 111, which are respectively located on both sides of the first side plate 11 along the second direction and are symmetrically arranged relative to the center of the first side plate 11 along the second direction, and the two pairs of first rolling grooves 111 and the two pairs of second rolling grooves 211 are at least partially aligned along the first direction. The two pairs of first balls 6 are respectively located between the two pairs of first rolling grooves 111 and the two pairs of second rolling grooves 211. That is to say, the projection of the first piezoelectric mechanism 4 along the first direction is located at the center position of the projection distance between the two pairs of first rolling grooves 211 or the two pairs of first balls 6 along the first direction, that is to say, the two pairs of first balls 6 disperse the pressure of the first piezoelectric mechanism 4 on the frame 2. When the first piezoelectric mechanism 4 drives the frame 2 to move, the two pairs of first balls 6 are divided into two groups and are symmetrically arranged relative to the first piezoelectric mechanism 4, which can make the frame 2 move in a balanced manner, avoid tilting of the frame 2 during movement, and ensure that the frame 2 moves more stably.

[0071] It should be understood that in other embodiments, preferably at least two second rolling grooves 211 are respectively disposed on both sides of the first side 21 along the second direction, which can increase the rolling stability of the frame 2 .

[0072] The second piezoelectric mechanism 5 is connected to the third side 23 of the annular frame. The second piezoelectric mechanism 5 has the same shape as the first piezoelectric mechanism 4 and also includes an elastic member, a piezoelectric block and a friction rod. The carrier 3 is located in the annular frame. The friction rod of the second piezoelectric mechanism 5 abuts against the carrier 3 and can drive the carrier 3 to move in the first direction or the vertical direction.

[0073] The inner wall of the third side 23 is also provided with a mounting groove for installing the second piezoelectric mechanism 5, which is defined as a second mounting groove 231. The second mounting groove 231 is used to install the second piezoelectric mechanism 5. The shape of the second mounting groove 231 is basically the same as the shape of the first mounting groove 121, and the way the second piezoelectric mechanism 5 is installed in the second mounting groove 231 is also the same. The elastic part of the second piezoelectric mechanism 5 is located on the outside of the second mounting groove 231, the piezoelectric block is connected to the inner side of the elastic part and is located inside the second mounting groove 231, the friction rod of the second piezoelectric mechanism 5 extends along the second direction and the outer end is connected to the inner side of the piezoelectric block, and the inner end is used to abut against the carrier 3.

[0074] Optionally, the second installation groove 231 includes an outer groove and an inner groove, the outer groove is formed by a depression of an outer wall of the third side 23 , and the inner groove is formed by a depression of a portion of a side wall of the outer groove along the second direction.

[0075] The elastic member of the second piezoelectric mechanism 5 is located in the outer groove and connected to the side wall of the outer groove along the second direction, and the piezoelectric block of the second piezoelectric mechanism 5 is located in the inner groove and connected to the elastic member. The size of the outer groove along the first direction is larger than the size of the inner groove along the first direction, so that the two ends of the elastic member of the second piezoelectric mechanism 5 along the first direction are conveniently connected to the two sides of the side wall of the outer groove along the second direction. Alternatively, the size of the outer groove along the vertical direction is larger than the size of the inner groove along the vertical direction, and the elastic member can also be connected to the top and bottom ends of the side wall of the outer groove along the second direction.

[0076] The axis of the friction rod of the second piezoelectric mechanism 5 extends in the second direction and the outer end is connected to the piezoelectric block, and the inner end abuts against the carrier 3. After the second piezoelectric mechanism 5 is powered on, the current can be changed to drive the carrier 3 to move in the vertical direction or in the first direction.

[0077] It should be understood that the movement of the carrier 3 along the optical axis direction can drive the lens to focus, and the movement of the frame 2 along the first direction or the second direction can balance the shaking of the carrier 3 and the lens. Figure 4 In the embodiment shown, the first piezoelectric mechanism 4 can drive the frame 2 to move in the second direction and in the vertical direction, and the frame 2 drives the carrier 3 to move in the vertical direction, thereby adjusting the focal length; and the second piezoelectric mechanism 5 can drive the frame 2 and the carrier 3 to move relative to each other in the first direction, that is, to balance the lens shake. In another scheme, the first piezoelectric mechanism 4 is only configured to drive the frame 2 to move in the second direction, the first piezoelectric mechanism 4 drives the carrier 3 to move in the vertical direction, and drives the frame 2 and the carrier 3 to move relative to each other in the first direction, and the lens focusing and anti-shake functions can also be realized. That is, the utility model can realize the drive frame 2 or the carrier 3 to move and realize the anti-shake and focusing functions through the change of the current of the two piezoelectric mechanisms. In practice, the current change of the two piezoelectric mechanisms can be set according to the needs, and the utility model does not make specific restrictions. The focus and anti-shake of the lens can be realized by using two piezoelectric mechanisms, and the piezoelectric mechanism basically does not occupy the internal space, and the weight is small, and the ball bearing can ensure the stable operation of the frame 2 and the carrier 3.

[0078] The second piezoelectric mechanism 5 is preferably located at the center of the third side 23 along the first direction. The principle is the same as that of the first piezoelectric mechanism 4, and can conveniently drive the carrier 3 to move more stably along the vertical direction or the first direction.

[0079] The carrier 3 is connected to the fourth side 24 of the annular frame by rolling with another ball, which is defined as the second ball 7. Specifically, Figure 6As shown, the inner wall of the fourth side 24 is provided with a first guide groove, which extends along the first direction, and the side of the carrier 3 corresponding to the fourth side 24 of the annular frame is provided with a second guide groove 31, and the second guide groove 31 is a hemispherical groove. The second ball 7 is located between the first guide groove and the second guide groove 31, so that the carrier 3 can move in the vertical direction relative to the frame 2.

[0080] As a preferred solution, the two first guide grooves are respectively located on both sides of the fourth side 24 along the first direction, and the center of the fourth side 24 along the first direction is symmetrically arranged. The two second guide grooves 31 are respectively located on the side of the carrier 3 facing the fourth side 24 and are at least partially aligned with the two first guide grooves, and the two second balls 7 are respectively located between the two first guide grooves and the two second guide grooves 31. The second piezoelectric mechanism 5 is located at the center of the third side 23 along the first direction, and the two second balls 7 are symmetrically arranged relative to the center of the fourth side 24 along the first direction, that is, the friction rod of the second piezoelectric mechanism 5 is located at the center of the projection distance of the two second balls 7 along the second direction, so when the friction rod of the second piezoelectric mechanism 5 drives the carrier 3 to move by vibration, the two second balls 7 are subjected to substantially the same force from the second piezoelectric mechanism 5, which can make the carrier 3 move stably.

[0081] More preferably, the two pairs of first guide grooves are respectively located on both sides of the fourth side 24 along the first direction and are symmetrically arranged relative to the center of the fourth side 24 along the first direction, and the two first guide grooves of each pair of first guide grooves are aligned in the vertical direction. The two pairs of second guide grooves 31 are respectively located on both sides of the carrier 3 facing the fourth side 24, and each pair of second guide grooves 31 is respectively aligned with each pair of first guide grooves. The two pairs of second balls 7 are respectively located between the two pairs of first guide grooves and the two pairs of second guide grooves 31. Increasing the number of balls can increase the stability of the movement of the carrier 3.

[0082] The circuit board 16 is L-shaped and can be electrically connected to an external power source. One end of the circuit board 16 is electrically connected to the first piezoelectric mechanism 4, and the other end is electrically connected to the second piezoelectric mechanism 5, and can supply power to the first piezoelectric mechanism 4 and the second piezoelectric mechanism 5. Specifically, the third side plate 13 and the second side plate 12 are respectively provided with avoidance gaps, and the avoidance gap of the third side plate 13 is defined as the first avoidance gap 131, and the avoidance gap of the second side plate 12 is defined as the second avoidance gap 122. The first avoidance gap 131 is formed by a depression at one end of the third side plate 13 close to the second side plate 12 and is open toward the top, and the first avoidance gap 131 at least extends to a position corresponding to the second piezoelectric mechanism 5, that is, at least a portion of the first avoidance gap 131 is aligned with the second piezoelectric mechanism 5 along the second direction, so that the circuit board 16 can pass through the first avoidance gap 131 to be electrically connected to the second piezoelectric mechanism 5.

[0083] The second avoidance gap 122 is formed by a depression at one end of the second side plate 12 close to the third side plate 13, and is also open toward the top end of the second side plate 12. The second avoidance gap 122 is spaced apart from the piezoelectric mechanism of the second side plate 12.

[0084] The L-shaped circuit board 16 includes a first plate and a second plate connected to each other. The first plate covers the outside of the second side plate 12 and one end is electrically connected to the elastic member 41 of the first piezoelectric mechanism 4, and the other end extends toward the third side plate 13. One end of the second plate is located in the first avoidance gap 131 and is electrically connected to the elastic member of the second piezoelectric mechanism 5, and the other end is electrically connected to the first plate. The first avoidance gap 131 is used to avoid the first plate, and the second avoidance gap 122 is used to avoid the second plate away from one end of the first piezoelectric mechanism 4. When the frame 2 moves, it will pull the circuit board 16 to move. The first avoidance gap 131 and the second avoidance gap 122 provide space for the movement of the circuit board 16 to prevent the circuit board 16 from being torn off.

[0085] Preferred embodiments of the present invention have been described in detail above, but it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide further embodiments.

[0086] These and other changes can be made to the embodiments in light of the above detailed description.In general, in the claims, the terms used should not be considered limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which these claims are entitled.

[0087] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A framework, characterized in that: The framework includes: An annular frame, the annular frame is used to install the carrier; a limiting plate, the limiting plate being connected to the bottom side of the annular frame and being located at the bottom side of the carrier, the limiting plate being provided with a avoidance hole, the avoidance hole being aligned with the lens in the carrier; and A piezoelectric mechanism is connected to one side of the annular frame along the first direction and a friction bar of the piezoelectric mechanism protrudes from an inner wall of the annular frame and abuts against the carrier.

2. The frame according to claim 1, characterized in that The annular frame comprises: A first side, the first side is in a plate shape extending along a second direction, the second direction being perpendicular to the first direction; a second side, the second side being in a plate shape extending along the second direction and being arranged opposite to the first side along the first direction; a third side, the third side extending along the first direction and having two ends connected to the first side and the second side respectively; and a fourth side, the fourth side extending along the first direction and having two ends connected to the first side and the second side respectively; The piezoelectric mechanism is connected to the third side; The fourth side is provided with a first guide groove, and the first guide groove extends along the first direction or along the vertical direction.

3. The frame according to claim 2, characterized in that The piezoelectric mechanism is located at a center of the third side along the first direction.

4. The frame according to claim 2, characterized in that An inner wall of the third side is provided with a mounting groove, and a part of the piezoelectric mechanism is located in the mounting groove.

5. The frame according to claim 4, characterized in that The mounting slot comprises: an outer groove formed by a depression of an outer wall of the third side; and an inner groove, wherein the inner groove is formed by recessing a portion of a side wall of the outer groove along the second direction; The piezoelectric mechanism comprises: an elastic member, wherein the elastic member is located in the outer groove and connected to a side wall of the outer groove along the second direction; a piezoelectric block, the piezoelectric block being located in the inner groove and connected to the elastic member; and The friction rod has an outer end connected to the piezoelectric block and an inner end protruding from the inner wall of the third side.

6. The frame according to claim 3, characterized in that At least two of the first guide grooves are located on both sides of the fourth side along the first direction.

7. The frame according to claim 6, characterized in that At least two of the first guide grooves are arranged at intervals along the vertical direction.

8. A frame assembly, characterized in that: The frame assembly comprises: The frame of claim 1; The carrier is located in the annular frame and has a bottom end against the limiting plate, and the carrier is movably connected to the annular frame.

9. The frame assembly according to claim 8, characterized in that The carrier is rollingly connected to the annular frame.

10. The frame assembly according to claim 8, characterized in that The frame assembly also includes a ball bearing; A first guide groove is provided on a side of the annular frame opposite to the piezoelectric mechanism, and the first guide groove extends along the first direction or along the vertical direction; A second guide groove is provided on an outer wall of a side of the carrier corresponding to the first guide groove, the second guide groove is aligned with a portion of the first guide groove along a second direction, and the second direction is perpendicular to the first direction; The ball bearings are located in the first guide groove and the second guide groove.

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