WO2026007359A1 - 潜望摄像模组 - Google Patents
潜望摄像模组Info
- Publication number
- WO2026007359A1 WO2026007359A1 PCT/CN2024/142206 CN2024142206W WO2026007359A1 WO 2026007359 A1 WO2026007359 A1 WO 2026007359A1 CN 2024142206 W CN2024142206 W CN 2024142206W WO 2026007359 A1 WO2026007359 A1 WO 2026007359A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carrier
- outer frame
- support portion
- support
- camera module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
- G02B13/0065—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element having a beam-folding prism or mirror
Definitions
- the new motor architecture must also consider the adverse effects on the carrier's movement state during design, preventing the carrier from tipping over or jamming, which could cause the periscope camera module to malfunction.
- the periscope camera module needs to limit its height during design, thereby improving the overall compactness and rationality of the periscope camera module's structure.
- a support assembly is assembled between the outer frame and the carrier.
- the support assembly includes a first support portion and a second support portion. Both the first support portion and the second support portion are disposed on one side of the carrier that is in contact with the pre-pressure actuation assembly, and the first support portion and the second support portion are respectively located on the upper and lower sides of the pre-pressure actuation assembly.
- a carrier capable of moving along the optical axis inside the outer frame, used to carry at least one lens
- a pre-pressure actuation assembly is disposed on the side of the carrier and applies a pre-pressure perpendicular to the optical axis to the carrier to drive the carrier to move along the optical axis.
- the support assembly assembled between the outer frame and the carrier.
- a magnetic attraction assembly is disposed at the bottom of the carrier and includes a pair of magnetic elements disposed opposite to each other on the outer frame and the carrier and extending in a direction parallel to the optical axis.
- the magnetic attraction assembly generates a magnetic attraction force perpendicular to the pre-pressure direction.
- a periscope camera module comprising:
- a carrier capable of moving along the optical axis inside the outer frame, used to carry at least one lens
- a pre-pressure actuation assembly is disposed on one side of the carrier and applies a pre-pressure perpendicular to the optical axis to the carrier for driving the carrier to move along the optical axis;
- a support assembly is assembled between the outer frame and the carrier, the support assembly including a first support portion and a second support portion;
- the first support portion and the second support portion are respectively disposed on opposite sides of the carrier.
- the first support portion is disposed on one side of the carrier that is in contact with the pre-pressure actuation component and is tightly fitted between the bottom of the outer frame and the bottom of the carrier.
- the second support portion is disposed on the other side of the carrier that is not in contact with the pre-pressure actuation component and is loosely fitted between the outer frame and the carrier.
- the preload actuation component includes:
- the pre-compression component is assembled onto one side wall of the outer frame
- the driving component is assembled between the pre-compression component and one side wall of the carrier;
- the pre-compression member applies a pre-pressure to the drive member toward the carrier and perpendicular to the side wall of the carrier, in order to maintain frictional contact between the drive member and the side wall of the carrier.
- a periscope camera module comprising:
- a carrier capable of moving along the optical axis inside the outer frame, used to carry at least one lens
- a pre-pressure actuation assembly is disposed on one side of the carrier and applies a pre-pressure perpendicular to the optical axis to the carrier for driving the carrier to move along the optical axis;
- a support assembly is assembled between the outer frame and the carrier, the support assembly including at least two support parts, wherein at least one of the support parts is assembled between the side wall of the outer frame having the pre-pressure actuation assembly and the corresponding side wall of the carrier, and at least two of the support parts are disposed opposite to each other at the bottom of the carrier along the optical axis.
- At least two of the support portions have two end sides along the optical axis, and the end-side distance of at least one of the support portions assembled between the side wall of the outer frame having the pre-pressurized actuation assembly and the corresponding side wall of the carrier is greater than the end-side distance of the other at least one support portion.
- a periscope camera module comprising:
- a carrier capable of moving along the optical axis inside the outer frame, used to support at least one lens
- a pre-pressure actuation assembly disposed on one side of the carrier, has at least one friction head.
- the pre-pressure actuation assembly applies a pre-pressure perpendicular to the optical axis to the carrier via the friction head, thereby driving the carrier to move along the optical axis.
- a support assembly is assembled between the outer frame and the carrier.
- the support assembly includes a first support portion and a second support portion located on opposite sides of the carrier.
- the first support portion is disposed on one side of the carrier that contacts the pre-pressurization actuation assembly and is disposed between the bottom of the outer frame and the bottom of the carrier.
- the distance from the projection of the second support portion onto the side wall of the outer frame having the pre-pressure actuation component to the friction head is greater than the distance from the projection of the first support portion onto the side wall of the outer frame having the pre-pressure actuation component to the friction head.
- the preload actuation component includes:
- the pre-compression component is assembled onto one side wall of the outer frame
- the driving component is assembled between the pre-compression component and one side wall of the carrier, and has a friction head that is in frictional connection with the side wall of the carrier;
- the pre-compression member applies a pre-pressure to the drive member toward the carrier and perpendicular to the side wall of the carrier, in order to maintain frictional contact between the drive member and the side wall of the carrier.
- Figure 1 is a schematic diagram of the overall structure of the periscope camera module provided in an embodiment of the present invention (the light deflection module and fixed lens are not shown).
- Figure 2 is an enlarged view of the structure at point A in Figure 1.
- Figure 3 is a schematic diagram of the overall structure of a periscope camera module provided in another embodiment of the present invention (the light deflection module and fixed lens are not shown).
- Figure 4 is a schematic diagram of the installation of the pre-pressure actuation component in the state of removing the conductive component according to another embodiment of the present invention (the light deflection module and the fixed lens are not shown).
- Figure 5 is a top view of the overall structure of the periscope camera module provided in the embodiment of the present invention (the light deflection module and fixed lens are not shown).
- Figure 6 is a cross-sectional view along line A-A of Figure 5.
- Figure 7 is an enlarged view of the structure at point B in Figure 6.
- Figure 8 is an enlarged view of the structure at point C in Figure 6.
- Figure 9 is an enlarged view of the structure at point D in Figure 6.
- Figure 10 is an enlarged view of the structure at point E in Figure 6.
- Figure 11 is a schematic diagram of the overall structure of the periscope camera module in the state of removing the outer frame according to an embodiment of the present invention.
- Figure 12 is a bottom view of the overall structure of the periscope camera module in the state of removing the outer frame, according to an embodiment of the present invention.
- Figure 13 is a schematic diagram of the structure of the carrier and support components provided in an embodiment of the present invention.
- Figure 14 is a schematic diagram of the overall structure of the periscope camera module in the state of removing the outer frame, according to another embodiment of the present invention.
- Figure 15 is a bottom view of the overall structure of the periscope camera module in the state of removing the outer frame, according to another embodiment of the present invention.
- Figure 16 is a perspective view of the overall structure of the periscope camera module in the state of removing the outer frame, according to another embodiment of the present invention.
- Figure 17 is a perspective view of the overall structure of the periscope camera module in the state of removing the outer frame, provided by another embodiment of the present invention from another perspective.
- Figure 18 is a schematic diagram of a planar spring structure provided in an embodiment of the present invention.
- Figure 19 is a schematic diagram of a spring structure provided in another embodiment of the present invention.
- Figure 20 is a schematic diagram of a spring structure provided in another embodiment of the present invention.
- Figure 21 is a top view of the overall structure of a periscope camera module provided in another embodiment of the present invention (the light deflection module and fixed lens are not shown).
- Figure 22 is the F-F sectional view of Figure 21.
- Figure 23 is a cross-sectional view along line G-G of Figure 21.
- Figure 24 is an enlarged view of the structure at point H in Figure 22.
- Figure 25 is an enlarged view of the structure at point I in Figure 22.
- Figure 26 is an enlarged view of the structure at point J in Figure 22.
- Figure 27 is an enlarged view of the structure at point K in Figure 23.
- Figure 28 is a schematic diagram of a magnetic yoke structure provided in an embodiment of the present invention.
- Figure 29 is a bottom view of the overall structure of the periscope camera module with the outer frame removed, according to an embodiment of the present invention.
- Figure 30 is a schematic diagram of the structure of the carrier and support components provided in an embodiment of the present invention.
- Figure 31 is an assembly perspective view of the pre-pressure actuation component, magnetic yoke, and metal parts in the periscope camera module in the state of removing the outer frame, according to another embodiment of the present invention.
- Figure 32 is an exploded view of the pre-pressurized actuation component, magnetic yoke, and metal parts in the periscope camera module in the state of removing the outer frame, according to another embodiment of the present invention.
- Figure 33 is a schematic diagram of the assembly of the pre-pressure actuation component, magnetic yoke, and metal parts in the periscope camera module in the state of removing the outer frame, according to another embodiment of the present invention.
- Figure 34 is a schematic diagram of the carrier and magnetic magnet provided in another embodiment of the present invention.
- Figure 35 is a schematic diagram of the carrier and magnetic magnet provided in another embodiment of the present invention.
- Figure 36 is a schematic diagram of the installation of the pre-pressure actuation component in the state of removing the conductive component according to another embodiment of the present invention (the light deflection module and the fixed lens are not shown).
- Figure 37 is a schematic diagram of the overall structure of the periscope camera module in the state of removing the outer frame according to an embodiment of the present invention.
- 100 outer frame; 110, first sidewall; 111, drive component mounting area; 112, first contact surface; 120, second sidewall; 121, second contact surface; 200, carrier; 210, lens carrier; 211, first carrier sidewall; 2111, third contact surface; 212, second carrier sidewall; 2121, fourth contact surface; 213, contact position; 214, friction plate; 215, damping component; 216, sensing magnet groove; 300, preload actuation assembly.
- a periscope camera module comprising an outer frame 100, a carrier 200, a pre-pressure actuation assembly 300, and a support assembly 400.
- the outer frame 100 has at least one light inlet and one light outlet for allowing light to enter and exit.
- the carrier 200 moves within the outer frame 100 along an axial direction, which is either aligned with or parallel to the optical axis of the optical element (such as a lens or lens element) carried by the carrier 200.
- the outer frame 100 includes a bottom solid extending along the optical axis and two side solids extending vertically upward from both sides of the bottom solid.
- the pre-pressure actuation component 300 is mounted on one side solid of the outer frame 100.
- the pre-pressure actuation component 300 abuts against and drives the carrier 200 from the side, causing the carrier 200 to move along the optical axis, thereby realizing the zoom and/or focus functions of the periscope camera module.
- the support component 400 is correspondingly mounted between the opposing surfaces of the outer frame 100 and the carrier 200, providing more stable support for the carrier 200 to always move along the optical axis.
- the support component 400 can also reduce the risk of offset, tilting, or even jamming that may occur during the movement of the carrier 200.
- the periscope camera module described in this application embodiment further includes an optical component 500, which includes a fixed optical component and a movable optical component arranged along the light propagation path.
- Each of the fixed and movable optical components includes at least one lens 520.
- the fixed optical component is disposed on the outer frame 100
- the movable optical component is disposed on the carrier 200.
- light enters through an opening on the light-incident side of the outer frame 100 passes sequentially along the optical axis through the fixed and movable optical components, and then exits through an opening on the light-exiting side of the outer frame 100. Therefore, the light-incident side of the outer frame 100 is the light-incident side, and the light-exiting side of the outer frame 100 is the light-exiting side.
- the periscope camera module also includes a photosensitive module (not shown in the figure) and a light deflection module 510.
- the light deflection module 510 changes the direction of the incident light and causes the deflected light to pass through the fixed optical component and the movable optical component in sequence, and finally converges to the photosensitive module, which receives the light and forms an image.
- the light-converting module 510 is installed on the light-incident side of the outer frame 100, and the photosensitive module is assembled on the light-emitting side of the outer frame 100.
- the periscope camera module includes an outer frame 100, a carrier 200, a driving component, a light deflection module 510, a lens module (optical component 500), and a photosensitive module.
- the carrier 200 moves along the optical axis inside the outer frame 100.
- the optical component 500 is disposed on the light-incident side of the outer frame 100 and the carrier 200 located on the optical axis.
- the photosensitive module is located on the light-outceasing side of the outer frame 100. That is, the outer frame 100, the carrier 200, the light deflection module 510, the lens module (optical component 500), and the photosensitive module are all located in the horizontal space where the optical axis is located.
- the driving component if the driving component is located on the optical axis in the length direction, it will significantly increase the length of the periscope camera module. At the same time, the driving component requires a large thrust, which will make it difficult to reduce the size of the driving component, thereby increasing the overall size of the periscope camera module. If the driving component is located on the top or bottom side of the carrier 200 in the height direction, it will increase the height of the periscope camera module, which is not conducive to improving the structural compactness of the periscope camera module and electronic equipment.
- the periscope camera module is mounted in the electronic device in a "lying” or “fitting” manner.
- the light-shifting module 510, lens module (i.e., optical component 500), and photosensitive module in the periscope camera module are arranged along the length or width direction of the electronic device, respectively. This avoids increasing the height (i.e., thickness) of the electronic device due to the long length of the periscope camera module. In other words, the height (i.e., thickness) of the electronic device is limited by the height of the periscope camera module, and is independent of the length and width of the periscope camera module.
- the photosensitive module includes a photosensitive component and a filter component.
- the filter component is disposed between the optical component 500 and the photosensitive component, and is located on the photosensitive path of the photosensitive component. It is used to filter the light before it enters the photosensitive component.
- the photosensitive component is located on the light-emitting side of the outer frame 100.
- the filter component includes a filter element and a filter element support. The filter element support is located between the filter element and the light-emitting side of the outer frame 100 or between the filter element and the carrier 200, so that the filter element is located on the photosensitive path.
- the photosensitive component is implemented as a circuit board and a photosensitive chip and electronic components mounted on the circuit board.
- This application proposes a novel driving architecture for a periscope camera module, including an outer frame 100, a carrier 200, a support component 400, and a pre-pressure actuation component 300.
- the pre-pressure actuation component 300 applies pre-pressure to the carrier 200 from the side wall along a direction perpendicular to the optical axis, so that the carrier 200 and the pre-pressure actuation component 300 maintain frictional contact and drive the carrier 200 to move along the optical axis. That is, the carrier 200 is driven to move by frictional contact, thereby reducing the volume of the driving structure required for the movement of the carrier 200.
- the pre-pressure actuation component 300 includes a driving component 310 and a pre-pressure component 320, as well as a conductive component 700 for conducting the pre-pressure actuation component 300.
- the driving component 310, the pre-pressure component 320, and the conductive component 700 are sequentially arranged on one side of the carrier 200. Therefore, a certain amount of space needs to be reserved within the periscope camera module to accommodate the various components of the pre-pressure actuation component 300. If the pre-pressure actuation component 300 is located on the bottom and top sides of the carrier 200, it will increase the height of the periscope camera module, thereby increasing the height of the electronic device.
- the pre-pressure actuation component 300 is disposed on the side of the carrier 200. This not only makes full use of the space on the side of the periscope camera module, ensuring the compactness and rationality of the overall structure of the periscope camera module, but also avoids increasing the height of the periscope camera module.
- the periscope camera module of this application also includes a magnetic suction component 600.
- the magnetic suction component 600 is disposed opposite to the outer frame 100 and the carrier 200 and extends in a direction parallel to the optical axis, and applies a magnetic suction force to the carrier 200 perpendicular to the optical axis and the pre-pressure direction.
- the magnetic attraction component 600 includes a magnetic magnet 610 and a magnetic yoke 620. The magnetic magnet 610 is disposed in one of the carrier 200 and the outer frame 100, and the magnetic yoke 620 is disposed in the other of the carrier 200 and the outer frame 100.
- the magnetic magnet 610 and the magnetic yoke 620 generate a magnetic attraction force to ensure that the carrier 200 does not deviate significantly during long-stroke movement, thereby keeping the carrier 200 stably disposed in the periscope camera module and improving the reliability of the periscope camera module.
- the magnetic attraction force of the magnetic attraction component 600 on the carrier 200 is perpendicular to the pre-pressure direction of the pre-pressure actuation component 300 on the carrier 200, so as to avoid the pre-pressure and magnetic attraction forces from superimposing on each other and causing excessive driving burden on the pre-pressure actuation component 300.
- the pre-pressure direction is parallel to the magnetic attraction direction, and when the pre-pressure direction and the magnetic attraction direction are the same (i.e., the magnetic attraction direction is preferably vertically downwards to ensure that the carrier 200 is stably placed in the periscope camera module), the pre-pressure direction is also vertically downwards.
- the pre-pressure actuation component 300 needs to be placed on the upper side of the carrier 200, which will increase the height of the periscope camera module.
- the pre-pressure and magnetic attraction forces are superimposed, requiring a larger driving force to drive the carrier 200 to move. This will require a larger driving force for the drive component 300.
- the pre-pressure actuation component 300 needs to be set on the bottom side of the carrier 200, which will cause the periscope camera module to increase in height.
- the magnetic attraction and pre-pressure in opposite directions will cancel each other out part or all of the force, thereby affecting the driving effect of the pre-pressure actuation component 300 and the stability of the carrier 200 on the outer frame 100.
- the superposition of preload and magnetic attraction can cause severe wear between the support component 400 (e.g., ball bearing) and the carrier 200 or between the support component 400 (e.g., ball bearing) and the outer frame 100, resulting in pits on the surface of the support component 400 (e.g., ball bearing), the surface of the carrier 200 or the surface of the outer frame 100, affecting the driving effect, or generating debris or damage due to friction, increasing the risk of the support component 400 (e.g., ball bearing) jamming during operation and affecting the operating effect.
- the support component 400 e.g., ball bearing
- the pre-pressure and magnetic attraction forces acting in different and perpendicular directions can avoid mutual interference between the pre-pressure actuation component 300 and the magnetic attraction component 600, maximizing the effect of the pre-pressure and magnetic attraction forces.
- the pre-pressure actuation component 300 acts on the side of the carrier 200, providing driving force for the movement of the carrier 200 along the optical axis.
- the magnetic attraction component 600 is located at the bottom, allowing the carrier 200 to remain stable during long-stroke movements. In other words, this maximizes the driving effect of the pre-pressure actuation component 300 and the stability of the carrier 200 on the outer frame 100, thereby improving the stability and reliability of the periscope camera module.
- the perpendicular directions of the pre-pressure and magnetic attraction forces make it easier to adjust the pre-pressure actuation component 300 located on the side and the magnetic attraction component 600 located at the bottom, reducing or avoiding the adverse effects of the force direction on the adjustment of the force level and minimizing interference factors during adjustment.
- the magnetic attraction force of the magnetic attraction component 600 on the carrier 200 and the pre-pressure force of the pre-pressure actuation component 300 on the carrier 200 are both perpendicular to the optical axis direction. This further avoids interference between the magnetic attraction force and the pre-pressure force on the driving force, thereby separating the force on the carrier 200 into three mutually perpendicular and non-interfering forces: the pre-pressure force in the width direction, the magnetic attraction force in the height direction, and the driving force in the length direction (optical axis direction).
- the magnetic attraction component 600 is located at the bottom of the carrier 200.
- the magnetic attraction force generated between the magnetic magnet 610 and the yoke 620 is along the height direction of the periscope camera module (i.e., the outer frame 100), and the pre-pressure force generated by the pre-pressure component 320 is along the width direction of the periscope camera module (i.e., the outer frame 100).
- a magnetic attraction force is generated between the magnetic attractor (such as the magnetic magnet 610) located on the carrier 200 and the magnetic yoke 620 located on the outer frame 100.
- the magnetic attractor and the magnetic yoke 620 form a magnetic attraction structure located on the bottom side of the carrier 200.
- the magnetic attraction structure can generate a magnetic attraction force to ensure that the carrier 200 does not deviate significantly during long-stroke movement.
- the magnetic attraction structure located on the bottom side can avoid the superposition of preload and magnetic attraction force, which would place too much driving burden on the preload actuation component 300.
- the magnetic attraction force of the magnetic attraction component 600 on the carrier 200 is perpendicular to the pre-pressure direction of the pre-pressure actuation component 300 on the carrier 200, so as to avoid the pre-pressure and magnetic attraction forces from superimposing on each other and causing excessive driving burden on the pre-pressure actuation component 300.
- the outer frame 100 extends parallel to the optical axis from its left and right sides on the light-incident side to form two side walls.
- At least one pre-pressurized actuation assembly 300 is mounted on one of the side walls of the outer frame 100.
- This side wall of the outer frame 100 is designated as the first side wall 110 of the outer frame 100
- the other side wall opposite to the first side wall 110 of the outer frame 100 is designated as the second side wall 120 of the outer frame 100.
- the two side walls of the carrier 200 opposite to the first side wall 110 and the second side wall 120 of the outer frame 100 are respectively designated as the first carrier side wall 211 and the second carrier side wall 212 of the carrier 200.
- the outer frame 100 has a drive member mounting area 111 on its first sidewall 110 for assembling the preload actuation assembly 300.
- the drive member mounting area 111 on the first sidewall 110 of the outer frame 100 may be implemented as a through hole on the first sidewall 110 of the outer frame 100 to assist in the installation of the preload actuation assembly 300.
- the shape of the through hole on the first sidewall 110 of the outer frame 100 corresponds to the outer contour shape of the drive member 310 of the preload actuation assembly 300, and the size of the through hole is slightly larger than the outer contour shape of the drive member 310.
- the outer surface of the first sidewall 110 of the outer frame 100 is provided with a mounting groove along the outer periphery of the through hole, the diameter of which is slightly larger than that of the through hole, for positioning the mounting position of the preload actuation assembly 300 from the outside so as to install the preload actuation assembly 300.
- the carrier 200 moves within the space of the outer frame 100 and carries the movable optical component.
- the movable optical component includes at least one optical lens.
- the movement of the carrier 200 drives the movable optical component to move, thereby achieving the focusing and/or zooming functions of the periscope camera module.
- the movable optical component includes two optical lenses, and the number of carriers 200 corresponds to the number of optical lenses.
- the carrier 200 is implemented as two movable carriers, each driving two optical lenses 520 to move along the optical axis to achieve zooming and focusing functions.
- the carrier 200 is implemented as a lens carrier 210 having a first carrier sidewall 211 and a second carrier sidewall 212.
- the lens carrier 210 is implemented as a first movable carrier and a second movable carrier respectively carrying an optical lens 520. Both the first movable carrier and the second movable carrier have the first carrier sidewall 211 and the second carrier sidewall 212.
- the first movable carrier and the second movable carrier can be implemented as a split structure or a mother-daughter structure. When implemented as a split structure, the first movable carrier and the second movable carrier can be driven to move along the optical axis to achieve zoom and focus functions.
- the second movable carrier is movably disposed on the first movable carrier, and the first movable carrier drives the second movable carrier to move together along the optical axis to achieve zoom and focus functions.
- the carrier 200 also includes damping elements 215 located on the light-incident and light-outcident sides, meaning that the carrier 200 has damping elements 215 at both its front and rear ends along the optical axis.
- the carrier 200 has mounting grooves for mounting the damping elements 215 at both its front and rear ends along the optical axis.
- the damping elements 215 have protrusions for insertion into the mounting grooves, meaning that the damping elements 215 and the mounting grooves form a snap-fit structure to achieve the mounting of the damping elements 215 on the lens carrier 210.
- the damping elements 215 can perform limiting and buffering functions, preventing impact between the carrier 200 and the outer frame 100, and also preventing noise caused by collision. Adhesive can also be injected between the protrusions of the damping elements 215 and the mounting grooves to assist in installation.
- the size of the protrusion of the damping element 215 can be slightly larger than the size of the mounting groove.
- the damping element 215 is an elastic material component, which may be implemented as a polyurethane, silicone, epoxy, or polymer material component.
- the carrier 200 further includes a friction plate 214 that frictionally contacts the pre-pressure actuation component 300, for generating friction between the pre-pressure actuation component 300 and the friction plate 214 of the carrier 200 to drive the carrier 200 to move.
- the friction plate 214 corresponds to the driving member 310 of the pre-pressure actuation component 300 and extends along a direction parallel to the optical axis on the first carrier sidewall 211 of the carrier 200.
- the friction plate 214 is assembled between the carrier 200 and the pre-pressure actuation assembly 300.
- the friction plate 214 is implemented as an integral structure on the first carrier sidewall 211 of the carrier 200, for example, by using an embedded molding process to integrally form the friction plate 214 with the first carrier sidewall 211; alternatively, it can be implemented as a separate structure disposed on the first carrier sidewall 211 of the carrier 200, for example, by connecting the friction plate 214 to the carrier 200 using an adhesive. It should be understood that the friction plate 214 can increase the frictional force between the carrier 200 and the pre-pressure actuation assembly 300.
- the friction plate 214 is made of materials such as zirconium oxide, aluminum oxide, etc.
- the friction contact position 213 between the friction plate 214 and the pre-pressure actuation assembly 300 is located on the first carrier sidewall 211 of the carrier 200.
- the pre-pressure member 320 applies a pre-pressure to the pre-pressure actuation assembly 300 to abut against the friction plate 214 of the carrier 200, so as to ensure that the friction head 311 of the pre-pressure actuation assembly 300 is in frictional connection with the friction plate 214.
- the friction contact position 213 mentioned above and below refers to the position where the components of the support assembly 400, such as the preload actuation assembly 300, or the first support part 410, the second support part 420, or the third support part 430 mentioned below, come into contact with the carrier 200 or the outer frame 100.
- the contact can be surface friction or point friction, and it may be rolling friction or sliding friction. However, due to its uncertainty, it is not clearly shown in the figure.
- the carrier 200 is mainly subjected to pre-pressure along the third axis X direction (i.e., the width direction of the outer frame 100 or carrier 200), magnetic attraction along the first axis Z direction (i.e., the height direction of the outer frame 100 or carrier 200), and driving force along the second axis Y direction (i.e., the length direction of the outer frame 100 or carrier 200, parallel to the optical axis).
- the third axis X direction i.e., the width direction of the outer frame 100 or carrier 200
- magnetic attraction along the first axis Z direction i.e., the height direction of the outer frame 100 or carrier 200
- driving force along the second axis Y direction i.e., the length direction of the outer frame 100 or carrier 200, parallel to the optical axis.
- the piezoelectric vibrator 312 of the driving component 310 causes the friction head 311 to move through vibration deformation, and the angle of contact between the friction head 311 and the carrier 200 changes accordingly when the piezoelectric vibrator 312 vibrates and deforms, the force generated between the friction head 311 and the carrier 200 is not always parallel to the optical axis direction; the direction of the force is inclined relative to the plane containing the sidewall of the carrier 200. The inclined force may cause the carrier 200 to tilt.
- the pre-pressure component 320 provides a pre-pressure force to the driving component 310.
- the direction of the pre-pressure force is perpendicular to the side wall of the carrier 200 along the first axis Z direction.
- the angle between the friction head 311 and the carrier 200 changes accordingly. This results in the pre-pressure force not always acting perpendicularly to the side wall of the carrier 200, but rather having a certain inclination relative to the plane containing the side wall of the carrier 200.
- the piezoelectric vibrator 312 of the pre-pressure actuation component 300 drives the friction head 311 to move through vibration deformation.
- the pre-pressure component 320 will also deform due to the vibration deformation of the piezoelectric vibrator 312, causing the direction of the pre-pressure force it generates to be somewhat inclination relative to the plane containing the side wall of the carrier 200, making it possible for the carrier 200 to tilt or even overturn.
- the pre-pressure actuation component 300 extends and is distributed on the first sidewall 110 of the outer frame 100 in a direction parallel to the optical axis.
- the pre-pressure member 320 of the pre-pressure actuation component 300 applies a pre-pressure perpendicular to the optical axis in a direction from the first carrier sidewall 211 of the carrier 200 toward the second carrier sidewall 212. This ensures that the carrier 200 and the pre-pressure actuation component 300 maintain constant frictional contact, thereby driving the carrier 200 to move relative to the outer frame 100 along the optical axis to achieve focusing and zooming functions.
- the first carrier sidewall 211 of the carrier 200 is subjected to a pre-pressure applied by the pre-pressure actuation assembly 300 in a direction perpendicular to the optical axis.
- the length of the first carrier sidewall 211 of the carrier 200 along the optical axis is not less than the length of the second carrier sidewall 212 of the carrier 200 along the optical axis.
- the length of the friction plate 214 of the carrier 200 can be set to be longer in order to further extend the stroke of the preload actuation assembly 300.
- the length of the first carrier sidewall 211 of the carrier 200 along the optical axis is equal to the length of the second carrier sidewall 212 of the carrier 200 along the optical axis, so as to increase the setting length of the support portion disposed on the opposite side of the pre-pressurized actuation component 300 (e.g., the distance between two balls disposed along the optical axis), thereby increasing the support surface area formed by different support portions on the carrier 200, so as to further enhance the movement stability and parallelism of the carrier 200.
- the first carrier sidewall 211 of the carrier 200 is subjected to a preload perpendicular to the optical axis applied by the preload actuation assembly 300. Furthermore, during movement, the carrier 200 may tend to shift towards the second sidewall 120 of the outer frame 100, and may also experience vertical displacement on the bottom surface of the outer frame 100. To prevent these displacements and ensure that the carrier 200 moves smoothly along the optical axis throughout the focusing and zooming process, the support assembly 400 is carefully designed and fitted between the carrier 200 and the outer frame 100 to provide necessary support and guidance.
- the preload actuation assembly 300 is driven from the side of the carrier 200, and the preload member 320 provides a preload perpendicular to the first carrier sidewall 211 of the carrier 200, a portion of the support members in the support assembly 400 need to support the carrier 200 from the side. This avoids excessive friction between the carrier 200 and the outer frame 100 due to surface friction, and also improves the parallelism of the carrier 200's movement through the configuration of the support members (e.g., ball bearings) and linear grooves.
- the support members e.g., ball bearings
- the overturning moment of the carrier 200 will be large due to the excessively long lever arm, making it easier for the carrier 200 to tilt.
- the preload actuation assembly 300 is not energized, the straight-line distance from the support member to the friction contact position 213 is the overturning lever arm of the carrier 200.
- the straight-line distance from the friction head 311 of the driving component 310 to the support is the lever arm x of the driving force.
- M Fx
- the larger x is, that is, the farther the straight-line distance between the friction head 311 and the support is when the driving component 310 is not energized, the larger the overturning moment M is.
- the support component when the support component is implemented as a ball bearing or other support component that has point frictional contact with the carrier 200 but whose motion state is uncertain, taking a ball bearing as an example, when the ball bearing is assembled between the carrier 200 and the outer frame 100, its motion state is uncertain.
- the ball bearing can freely switch between rolling and sliding motion states. Therefore, the ball bearing may get stuck in its assembly groove during the movement of the carrier 200, which may also cause the carrier 200 to tilt or even overturn.
- the support component 400 is implemented as multiple ball bearings, the ball bearings have point contact with the outer frame 100 on both sides and the carrier 200.
- the carrier 200 tilts, one of the ball bearings of the support component 400 may not be able to contact the outer frame 100 and the carrier 200 at the same time, which may lead to the carrier 200 getting stuck with the ball bearing, or the carrier 200 separating from the ball bearing, thus causing the carrier 200 to be unable to continue moving. Based on this, considering the size of the movable space at the ball bearing assembly, the manufacturing tolerances of the outer frame 100 and the carrier 200, as well as the assembly tolerances between them, can also cause the carrier 200 to tilt or jam.
- the support assembly 400 is implemented as a plurality of support members, wherein at least one support member is assembled between the first side of the outer frame 100 and the first side of the carrier 200, and at least another support member is assembled between the second side of the outer frame 100 and the second side of the carrier 200.
- at least one support member is assembled between the inner wall of the outer frame 100 where the preload actuation assembly 300 is provided and the opposite outer wall of the carrier 200, and at least another support member is assembled on the outer frame where the preload actuation assembly 300 is not provided.
- At least one support member is assembled between the first sidewall 110 of the outer frame 100 and the first carrier sidewall 211 of the carrier 200, and at least another support member is assembled between the second sidewall 120 of the outer frame 100 and the second carrier sidewall 212 of the carrier 200, so that the carrier 200 is supported by the support members on both sides of the left and right sidewalls and/or the left and right sides of the bottom surface parallel to the optical axis, thereby ensuring that the carrier 200 always moves along the optical axis.
- At least two of the support members are assembled on both sides of the friction contact position 213 between the pre-pressure actuation assembly 300 and the carrier 200 in the height direction (i.e., along the thickness direction of the outer frame 100), so that when the carrier 200 moves in the optical axis direction, the horizontal and height displacement or even jamming of the carrier 200 during zooming and focusing is reduced.
- the support assembly 400 includes a first support portion 410 and a second support portion 420. Both the first support portion 410 and the second support portion 420 have at least one support member.
- the first support portion 410 is disposed on the first side wall 110 of the outer frame 100 where the pre-pressure actuation assembly 300 is disposed.
- the second support portion 420 is disposed on the second side wall 120 of the outer frame 100 corresponding to the first side wall 110, as shown in Figures 6 and 22. Under the action of pre-pressure, the first support portion 410 is clamped at the bottom of the first side wall 110 of the outer frame 100 and the bottom of the first carrier side wall 211 of the carrier 200.
- the second support portion 420 is clamped at the top of the second side wall 120 of the outer frame 100 and the top of the second carrier side wall 212 of the carrier 200, thus providing support for the carrier 200.
- the first support portion 410 and the second support portion 420 are assembled on the upper and lower sides of the contact position 213 between the pre-pressure actuation assembly 300 and the carrier 200 in the height direction (i.e., along the thickness direction of the outer frame 100), and the distance from the first support portion 410 to the contact position 213 along the height direction is equal to or close to the distance from the second support portion 420 to the contact position 213 along the height direction (the difference does not exceed 20%), so that the first support portion 410 and the second support portion 420 are arranged as symmetrically as possible with respect to the optical axis in the height direction, providing the carrier 200 with the most symmetrical support force possible, and reducing the risk of the carrier 200 overturning without structural interference.
- M Fx
- M the overturning torque
- F the preload vector
- x the lever arm of the preload, which is the straight-line distance from the friction contact position 213 between the preload actuation component 300 and the carrier 200 to the second support portion 420 when the preload actuation component 300 is not energized (the straight-line distance between the first support portion 410 and the friction contact position 213 approaches zero).
- the overturning torque M increases with the increase of the lever arm x.
- the x value can be controlled by controlling the straight-line distance between the second support portion 420 and the contact position 213, thereby controlling the overturning torque M.
- the first sidewall 110 of the outer frame 100 and the first carrier sidewall 211 of the carrier 200 each have at least two contact surfaces that abut against the first support portion 410
- the second sidewall 120 of the outer frame 100 and the second carrier sidewall 212 of the carrier 200 each have at least one contact surface that abuts against the second support portion 420.
- the contact surface of the first support portion 410 or the second support portion 420 includes at least one vertical surface perpendicular to the preload direction, namely the first contact surface 112 and the second contact surface 121, to provide contact support for the first support portion 410 or the second support portion 420 under preload.
- the assembly areas on the outer frame 100 and the carrier 200 located at the first support portion 410 and the second support portion 420 each have an assembly groove corresponding to the support member.
- Each assembly groove has at least two opposing abutment surfaces, as shown in Figures 8, 9, 24, and 25.
- the assembly groove is configured to have two vertical surfaces and two horizontal surfaces, so that the support member can be abutted and supported from both vertical and horizontal directions.
- first abutment surface 112 on the first sidewall 110 of the outer frame 100 and the third abutment surface 2111 on the first carrier sidewall 211 of the carrier 200 are both vertical abutment surfaces, providing abutment support to the first support portion 410 from both horizontal directions.
- the outer frame 100 and the carrier 200 each have an assembly groove corresponding to the support member at the first support portion 410.
- the upper and lower sides of the support 410 have horizontal abutment surfaces, which abut and support the first support 410 from two vertical directions;
- the second abutment surface 121 on the second side wall 120 of the outer frame 100 and the fourth abutment surface 2121 on the second carrier side wall 212 of the carrier 200 are both vertical abutment surfaces, which abut and support the second support 420 from two horizontal directions;
- the first abutment surface 112 on the first side wall 110 of the outer frame 100 and the second support 420 are mutually abutted by an additional structure, which is a metal part 480, to further adjust the manufacturing tolerance between the first abutment surface 112 on the first side wall 110 of the outer frame 100 and the second support 420;
- both the outer frame 100 and the carrier 200 have horizontal abutment surfaces on the upper and lower sides of the second support 420, which abut and support the second support 420 from two vertical directions.
- this application sets the support portion close to the pre-pressure actuation component 300 (i.e., the first side) as a tight fit, that is, the first support portion 410 set on the same side as the pre-pressure actuation component 300 is the main support member; and sets the support portion away from the pre-pressure actuation component 300 (i.e., the second side) as a loose fit, that is, the second support portion 420 set on the opposite side of the pre-pressure actuation component 300 is the auxiliary support member.
- the first support portion 410 is tightly fitted between the first side wall 110 of the outer frame 100 and the first carrier side wall 211 of the carrier 200
- the second support portion 420 is loosely fitted between the second side wall 120 (or the metal part 480) of the outer frame 100 and the second carrier side wall 212 of the carrier 200.
- the first support portion 410 is always in contact with the first abutting surface 112, the third abutting surface 2111, and the horizontal abutting surfaces located on the upper and lower sides of the first support portion 410, and the second support portion 420 always has a certain gap between the second abutting surface 121 (or one side wall of the metal part 480), the fourth abutting surface 2121, and the horizontal abutting surface located on the upper side of the second support portion 420.
- the first support part 410 serves as the main support component.
- the straight-line distance from the first support part 410 to the contact position 213 is less than the straight-line distance from the projection of the second support part 420 onto the first side wall 110 of the outer frame 100 to the contact position 213. Since the first support part 410 is tightly fitted, the straight-line distance from the contact position 213 to the first support part 410 is the lever arm x corresponding to the overturning moment. By reducing the value of x, the overturning moment M is reduced, thus preventing the carrier 200 from tilting or even jamming.
- the aforementioned tight fit and loose fit can be implemented through tolerances during the assembly process.
- the tolerance between the first support part 410 and the outer frame 100 and carrier 200 is smaller than the tolerance between the second support part 420 and the outer frame 100 and carrier 200.
- the former tolerance is 0.01
- the latter tolerance is 0.02. That is, the distance between the first abutting surface 112 and the third abutting surface 2111 is smaller than the distance between the second abutting surface 121 and the fourth abutting surface 2121, and the distance between the horizontal abutting surfaces located on the upper and lower sides of the first support part 410 is smaller than the distance between the horizontal abutting surfaces located on the upper and lower sides of the second support part 420.
- the tightly fitted first support 410 provides the main support for the carrier 200 to ensure the parallelism of the carrier 200's movement along the optical axis.
- the gap at the loosely fitted second support 420 provides space for the carrier 200 to adjust its position.
- the second support 420 simultaneously abuts against the outer frame 100 and the carrier 200, and in this state cooperates with the first support 410 to provide support for the carrier 200, thereby correcting the position of the carrier 200 and preventing the tilt angle of the carrier 200 from affecting its movement. This reduces the possibility of the carrier 200 tilting to a certain extent and helps to improve the imaging quality of the periscope camera module.
- the first support portion 410 or the second support portion 420 may be implemented as ball bearings or other point-support components.
- the first support portion 410 and/or the second support portion 420 each include two ball bearings, which are respectively assembled at the front and rear ends of the carrier 200 along the parallel optical axis, as shown in Figures 12, 13, 28, 29, and 30.
- Both the first support portion 410 and the second support portion 420 are implemented as two ball bearings, namely, the first ball bearing 411 and the second ball bearing 412 constituting the first support portion 410, and the third ball bearing 421 and the fourth ball bearing 422 constituting the second support portion 420. Under pre-pressure, the ball bearings are clamped between the outer frame 100 and the carrier 200 to provide more stable support and movement guidance for the carrier 200.
- the first support 410 or the second support 420 may be implemented as a guide rod or other surface-supported component, which extends along a direction parallel to the optical axis and is fitted between the outer frame 100 and the carrier 200 to ensure the parallelism and stability of the movement of the carrier 200.
- the first support 410 is implemented as a first ball bearing 411 and a second ball bearing 412
- the second support 420 is implemented as a top guide rod 423.
- the corresponding abutting surfaces of the first sidewall 110 of the outer frame 100 and the corresponding abutting surfaces of the first carrier sidewall 211 of the carrier 200 are recessed into the outer frame 100 and into the carrier 200, respectively, forming at least one pair of L-shaped guide grooves 440 with opposite opening directions. That is, the first abutting surface 112, the second abutting surface 121, the third abutting surface 2111, or the fourth abutting surface 2121 can all be connected to an adjacent horizontal abutting surface to form an L-shaped guide groove 440.
- one sidewall of the metal part 480 can also be connected to an adjacent horizontal abutting surface to form an L-shaped guide groove 440.
- the four inner walls of each pair of L-shaped guide grooves 440 simultaneously clamp the outer side of the ball of the first support part 410. That is, the first abutting surface 112, the third abutting surface 2111, and the horizontal abutting surfaces located on the upper and lower sides of the ball of the first support part 410 all abut against the ball of the first support part 410 to achieve a tight fit of the first support part 410.
- the other three inner walls of the pair of L-shaped guide grooves 440 maintain a certain gap with the ball of the second support part 420. That is, the second abutting surface 121, the fourth abutting surface 2121, and the horizontal abutting surface located on the upper side of the ball of the second support part 420 all maintain a certain gap with the ball of the first support part 410 to achieve a loose fit of the second support part 420 and prevent the ball of the first support part 410 or the second support part 420 from loosening or falling off.
- the ball bearing size of the first support portion 410 on the same side as the pre-pressure actuation component 300 is larger than the ball bearing size of the second support portion 420 on the opposite side of the pre-pressure actuation component 300. It should be understood that the ball bearing of the first support portion 410 is located at the bottom of the first side, and the ball bearing of the second support portion 420 is located at the top of the second side.
- This arrangement results in the ball bearing of the first support portion 410 being positioned between the bottom of the first sidewall 110 of the outer frame 100 and the bottom of the first carrier sidewall 211 of the carrier 200, thus causing a greater force on the ball bearing of the first support portion 410 and making it more prone to dents, in the event of a drop or impact to the periscope camera module.
- the ball bearing of the first support portion 410 experiences a greater force and is more prone to dents when the periscope camera module falls or is impacted.
- the ball size of the first support portion 410 is larger, the force of the ball of the first support portion 410 when it is impacted can be dispersed, thereby reducing the degree of dents in the first support portion 410.
- a metal support is provided on the first side wall 110 of the outer frame 100.
- the metal support is located at the bottom of the second support part 420 and supports the second support part 420 with its top surface facing upward, providing a support plane for the ball bearings of the second support part 420, so as to improve the smoothness of the movement of the second support part 420 and prevent the ball bearings from being pressed and generating pits in the guide groove or generating debris on the outer frame 100.
- the spacing between the pair of L-shaped guide grooves 440 clamping the outer side of the ball in the second support portion 420 is greater than the spacing between the pair of L-shaped guide grooves 440 clamping the outer side of the ball in the first support portion 410.
- the horizontal spacing between the pair of L-shaped guide grooves 440 clamping the outer side of the ball in the second support portion 420 is greater than the horizontal spacing between the pair of L-shaped guide grooves 440 clamping the outer side of the ball in the first support portion 410, so as to achieve a tight fit of the first support portion 410 and a loose fit of the second support portion 420.
- the horizontal and vertical spacing of the pair of L-shaped guide grooves 440 clamped on the outer side of the ball in the second support 420 is greater than the horizontal and vertical spacing of the pair of L-shaped guide grooves 440 clamped on the outer side of the ball in the first support 410. This allows for a loose fit of the second support 420, providing sufficient adjustment space for the tilted carrier 200 to avoid jamming and ensuring stable movement of the ball within the L-shaped guide grooves 440.
- the two balls that make up the same support are located in two pairs of L-shaped guide grooves 440.
- These two pairs of L-shaped guide grooves 440 are arranged in a direction parallel to the optical axis but are not connected to each other. That is, each ball is located in a pair of L-shaped guide grooves 440 to avoid interference between the two balls.
- the L-shaped guide groove 440 has a length along the optical axis that is greater than the diameter of the ball, allowing the ball to move along the optical axis within the L-shaped guide groove 440. This can be understood as follows: the longer the L-shaped guide groove 440 is along the optical axis, the greater the chance of the ball undergoing pure rolling, resulting in a lower coefficient of friction for pure rolling. This reduces the frictional force on the carrier 200, making its movement along the optical axis smoother.
- the length of the L-shaped guide groove 440 accommodating the first support part 410 along the optical axis can be equal to the length of the L-shaped guide groove 440 accommodating the second support part 420 along the optical axis, so as to ensure the long travel of the carrier 200.
- a magnetic attraction component 600 is provided between the carrier 200 and the outer frame 100. This allows the carrier 200 to be subjected to a magnetic attraction force towards the outer frame 100 during its movement along the optical axis, thereby clamping the support component 400, reducing the offset of the carrier 200 along the optical axis, and maintaining the parallelism of its movement.
- the magnetic traction component 600 is implemented between the bottom of the carrier 200 and the bottom of the outer frame 100.
- the magnetic traction component 600 includes a magnetic magnet 610 and a magnetic yoke 620; that is, the magnetic magnet 610 is disposed on one of the carrier 200 and the outer frame 100, and the magnetic yoke 620 is disposed on the other of the carrier 200 and the outer frame 100.
- the magnetic magnet 610 is disposed on the bottom surface of the carrier 200
- the magnetic yoke 620 is disposed on the outer frame 100 at a position corresponding to the magnetic magnet 610. Both the magnetic magnet 610 and the magnetic yoke 620 extend along the optical axis.
- the magnetic attraction component 600 and the first support portion 410 are symmetrically arranged at the bottom of the carrier 200, that is, at least one magnetic attraction magnet 610 and the first support portion 410 are symmetrically arranged at the bottom of the carrier 200 in the width direction, as shown in FIG34.
- the magnetic attraction magnet 610 is arranged on the other side of the bottom of the carrier 200 away from the first support portion 410, and the magnetic yoke 620 is correspondingly arranged on the bottom of the side wall of the outer frame 100 that does not have the pre-pressure actuation component 300.
- the magnetic attraction component 600 is placed closer to the second side of the outer frame 100 and the second side of the carrier 200 in the width direction at the bottom of the carrier 200, and generates a downward magnetic attraction force on the carrier 200, so that the bottom of the carrier 200 is subjected to a downward force on both symmetrical sides in the width direction, so as to ensure the stability of the carrier 200 on the outer frame 100.
- the magnetic attraction component 600 includes at least one magnetic attractor 610 and a magnetic yoke 620.
- the number of magnetic attractors 610 is at least two.
- the at least two magnetic attractors 610 are symmetrically distributed on both sides of the bottom surface of the carrier 200 along the width direction and extend along the direction parallel to the optical axis.
- the magnetic yoke 620 is disposed on the outer frame 100 at the position corresponding to the magnetic attractor 610, that is, on the projection of the magnetic attractor 610 on the outer frame 100 and extends along the direction parallel to the optical axis. As shown in Figures 6, 7, 23 and 27, the two sets of magnetic attractors 610 and the magnetic yoke 620 generate a magnetic attraction with the bottom sides of the carrier 200.
- the two sets of magnetic attractors 610 are symmetrically arranged at the bottom of the carrier 200, so that the carrier 200 is subjected to a symmetrical magnetic attraction force perpendicular to the optical axis and downward, so as to further reduce the offset of the carrier 200 during movement and maintain its parallelism during movement.
- the magnetic attraction component 600 further includes a magnetic magnet 610 disposed on one or both sides of the carrier 200 and a magnetic yoke 620 on the inner side wall of the outer frame 100 at the corresponding position, for generating magnetic attraction force in the third axis X direction to ensure the parallelism of the movement of the carrier 200.
- At least one magnetic magnet 610 is provided on one side or symmetrically on both sides of the bottom surface of the carrier 200 along the third direction X, as shown in Figures 12, 13, 15, 16, 28, 29 and 30. Each side of the bottom surface of the carrier 200 is provided with one magnetic magnet 610. Specifically, the length of the magnetic magnet 610 is not less than half the length of the carrier 200 (along the optical axis).
- two magnetic magnets 610 are provided on each side of the bottom surface of the carrier 200.
- the two magnetic magnets 610 located on the same side are distributed along the optical axis.
- the length of each magnetic magnet 610 is not less than one-third of the length of the carrier 200 (along the optical axis) to ensure the stability of the carrier 200 in the movement of the outer frame 100.
- the magnetic yoke 620 is disposed at the projection of the magnetic attracting stone 610 onto the outer frame 100 and extends along the optical axis.
- the magnetic yoke 620 can be fixed to the outer frame 100 by means of adhesive bonding, snap-fitting, nesting, welding, or fastener connection.
- the length of the magnetic yoke 620 along the optical axis is not less than the travel distance of the carrier 200.
- the length of the magnetic yoke 620 is not less than half the length of the carrier 200 along the optical axis and the sum of the travel distance of the carrier 200, so as to avoid the carrier 200 shifting because the magnetic attraction force on the carrier 200 is small when the carrier 200 moves to one end of the magnetic yoke 620 due to the forward or backward placement of the magnetic magnet 610.
- the magnetic yokes 620 corresponding to the two carriers 200 are located in the same direction parallel to the optical axis or in different positions in the third direction X and both extend along the optical axis.
- the magnetic yoke 620 can be implemented as an integral magnetic yoke 620 or two segmented magnetic yokes 620 respectively corresponding to the movement stroke of the two carriers 200, so as to cover the movement stroke of the two carriers 200.
- the magnetic yoke 620 includes a planar segment 621 and an edge segment 623.
- the planar segment 621 covers the projection of the magnetic magnet 610 onto the outer frame 100 and the travel of the carrier 200, and is used to generate a magnetic attraction between the magnetic magnet 610 on the carrier 200.
- the edge segment 623 connects the planar segment 621 to the outer frame 100.
- the magnetic attraction component 600 is implemented as a group of magnetic attraction components 600 and is symmetrically arranged with the first support portion 410 on both sides of the bottom of the carrier 200 in the third direction X.
- the magnetic magnet 610 is disposed on the other side of the bottom of the carrier 200 away from the first support portion 410.
- the magnetic yoke 620 can be implemented to extend in the third direction X to the first support portion 410, or to extend to cover the width of the carrier 200, or to extend only to cover the projection of the magnetic magnet 610. That is, the planar segment 621 of the magnetic yoke 620 covers the projection of the magnetic magnet 610.
- the edge segment 623 of the magnetic yoke 620 can be implemented to extend in the third direction X from one or both sides of the planar segment 621 to the first support portion 410, or to extend to cover the width of the carrier 200, or to extend only to cover one side of the bottom surface of the carrier 200.
- the width of the magnetic magnet 610 in the third direction X is not less than one-quarter of the width of the carrier 200, so as to ensure that the carrier 200 is subjected to similar or the same downward force on both sides of the bottom, thereby preventing the carrier 200 from shifting.
- the magnetic yoke 620 further includes a bent section 622 located between the planar section 621 and the edge section 623, as shown in Figures 22 and 28.
- the bent section 622 protrudes upward from the opposite side of the planar section 621 and the edge section 623 to form a support surface.
- the support surface supports the first support portion 410 upward at the top.
- the planar section 621 covers the projection of the magnetic magnet 610 on the outer frame 100 in the width direction and extends to the first support portion 410 on one side.
- planar segment 621 covers the projection of the magnetic magnet 610 on the outer frame 100 along the third direction X, and connects an edge segment 623 and a bent segment 622 on both sides respectively.
- the bent segment 622 connects to another edge segment 623 on the other side to cover the bottom surface of the carrier 200, thereby making the magnetic attraction force on the carrier 200 more stable.
- planar segment 621 includes a projection area 6211 and a connecting area 6212, as shown in FIG28.
- the projection area 6211 only covers the projection of the magnetic magnet 610, and the connecting area 6212 connects the projection area 6211 with other segments of the magnetic yoke 620 and/or connects two adjacent projection areas 6211.
- the projection area 6211 of the planar segment 621 only covers the projection of the magnetic magnet 610 on the outer frame 100 along the third direction X, and the connecting area 6212 of the planar segment 621 connects an edge segment 623 and a bent segment 622;
- the projection area 6211 of the planar segment 621 only covers the projection of the magnetic magnet 610 on the outer frame 100 along the third direction X, and the connecting area 6212 of the planar segment 621 connects the projection area 6211 with an edge segment 623 and a bent segment 622, and connects two adjacent projection areas 6211.
- the magnetic yoke 620 is implemented as a strip of metal material capable of attracting the magnetic magnet 610, which allows for mass production. After the magnetic yoke 620 is manufactured, it is cut to the required area to improve manufacturing efficiency. Moreover, the magnetic yoke 620 has a large area; the larger the metal pressing area, the better it is to ensure the flatness of the area on the outer frame 100 corresponding to the carrier 200.
- the second sidewall 120 of the outer frame 100 and the second carrier sidewall 212 of the carrier 200 each have at least one contact surface that abuts against the third support portion 430.
- the contact surface of the third support portion 430 includes at least two horizontal planes perpendicular to the direction of magnetic attraction, so as to provide abutment support for the upper and lower sides of the third support portion 430 under the action of magnetic attraction.
- the first support part 410 and the third support part 430 are located at the bottom of the first carrier side wall 211 and the bottom of the second carrier side wall 212 of the carrier 200, respectively.
- the second support part 420 and the third support part 430 are located at the top and bottom of the second carrier side wall 212 of the carrier 200, respectively.
- the first support part 410 and the second support part 420 are clamped between the carrier 200 and the outer frame 100 under the action of pre-pressure, providing horizontal support for the carrier 200.
- the first support part 410 and the third support part 430 are clamped between the carrier 200 and the outer frame 100 under the action of magnetic attraction, providing vertical support for the carrier 200.
- the first support part 410 provides support to the carrier 200 under the action of pre-pressure and magnetic attraction. Therefore, the first support part 410 needs to be simultaneously restricted in the direction parallel to the pre-pressure and the direction parallel to the magnetic attraction, as shown in Figures 6, 8, 9, 10, and 22. The first support part 410 also needs to be simultaneously restricted in the horizontal direction perpendicular to the optical axis and the vertical direction.
- the second support part 420 provides support under the action of pre-pressure. Therefore, the second support part 420 needs to be restricted in the direction parallel to the pre-pressure, but can have a certain amount of movement in the direction parallel to the magnetic attraction.
- the second support part 420 needs to be restricted in the horizontal direction perpendicular to the optical axis, but can have a certain amount of movement in the vertical direction perpendicular to the optical axis.
- the third support part 430 provides support under the action of magnetic attraction. Therefore, the third support part 430 needs to be restricted in the direction parallel to the magnetic attraction, but can have a certain amount of movement in the direction parallel to the pre-pressure. That is, the third support part 430 needs to be restricted in the vertical direction perpendicular to the optical axis, but can have a certain amount of movement in the horizontal direction perpendicular to the optical axis.
- the magnetic magnet 610 is implemented as two magnetic magnets 610 symmetrically arranged on the first support portion 410 and the third support portion 430.
- the magnetic yoke 620 has the edge segment 623, the bent segment 622 and the flat segment 621 distributed sequentially from both sides to the center.
- the flat segment 621 covers the projection of the two magnetic magnets 610 on the outer frame 100.
- the edge segment 623 and the bent segment 622 are symmetrically distributed on both sides of the flat segment 621 in the width direction.
- the two bent segments 622 are located at the bottom of the first support portion 410 and the third support portion 430 respectively, and support the first support portion 410 and the third support portion 430 with their top surfaces facing upwards.
- the third support portion 430 may be implemented as two ball bearings, which are respectively mounted at the front and rear ends of the carrier 200 along the direction parallel to the optical axis. Under the action of magnetic attraction, the ball bearings are clamped between the outer frame 100 and the carrier 200 to provide more stable support and movement guidance for the carrier 200. As shown in Figures 12, 15, 16 and 30, the third support portion 430 is implemented as a fifth ball bearing 431 and a sixth ball bearing 432.
- the third support 430 may be implemented as a guide rod, which has the same structure as the top guide rod 423 implemented as the second support 420, and extends along the direction parallel to the optical axis and is assembled between the outer frame 100 and the carrier 200 to ensure the parallelism and stability of the movement of the carrier 200.
- the corresponding abutting surface of the second side wall 120 of the outer frame 100 is recessed inward
- the corresponding abutting surface of the second carrier side wall 212 of the carrier 200 is recessed inward, forming at least a pair of V-shaped guide grooves with opposite opening directions or further including a three-sided guide groove with a flat bottom surface, i.e., oblique side wall guide groove 460.
- the top wall and bottom wall in the inner wall of the oblique side wall guide groove 460 are simultaneously clamped to the outside of the balls of the third support 430, so as to prevent the balls of the third support 430 from loosening or falling off.
- the top and bottom walls of the inner walls of each pair of inclined sidewall guide grooves 460 clamp the balls of the third support part 430 from both the top and bottom sides to ensure that the balls are clamped and move stably within the inclined sidewall guide grooves 460.
- the horizontal width of the inclined sidewall guide grooves 460 is greater than its vertical height or depth.
- the third support part 430 can have a certain amount of movement space parallel to the preload direction, thereby providing sufficient adjustment space for the tilted carrier 200 to avoid jamming.
- an auxiliary metal part is provided at the bottom of the carrier 200.
- the bottom surface of the auxiliary metal part and the top surface of the bent section 622 of the magnetic yoke 620 clamp the balls of the third support part 430 from both the top and bottom sides, replacing each pair of inclined sidewall guide grooves 460 to assemble the balls of the third support part 430.
- the two balls that make up the same support are located in two pairs of inclined sidewall guide grooves 460.
- These two pairs of inclined sidewall guide grooves 460 are arranged in a direction parallel to the optical axis but are not connected to each other. That is, each ball is located in a pair of inclined sidewall guide grooves 460 to avoid interference between the two balls.
- the structure of the guide rod is the same as that of the top guide rod 423 implemented as the second support 420.
- the corresponding abutting surfaces of the second sidewall 120 of the outer frame 100 and the corresponding abutting surfaces of the second carrier sidewall 212 of the carrier 200 are recessed downwards or upwards, forming U-shaped guide grooves 450 with openings facing upwards or downwards, for assembling the guide rod.
- a pressing block is provided at the opening of the U-shaped guide groove 450 to press against the guide rod, preventing the guide rod from tilting up within the U-shaped guide groove 450.
- the magnetic component 600 under the magnetic attraction of the magnetic component 600, the first support portion 410 and the third support portion 430 are respectively clamped to both sides of the bottom of the carrier 200. That is, the magnetic component 600 has a certain degree of inhibitory effect on the tendency of the carrier 200 to tilt against the second carrier sidewall 212. Based on this, as can be seen from the foregoing, the smaller the overturning arm from the friction head 311 of the driving member 310 to the support component 400, the smaller the overturning torque, and the lower the risk of the carrier 200 overturning.
- this application provides another embodiment in which the second support portion 420 is also disposed on the first side, close to the drive member 310, just like the first support portion 410. That is, the second support portion 420 is assembled on the top of the first side wall 110 of the outer frame 100 and the top of the first carrier side wall 211 of the carrier 200, so that the first support portion 410 and the second support portion 420 provide corresponding pre-pressure support to the carrier 200 at different heights on the same side, which can eliminate the large lever arm and further reduce the risk of the carrier 200 tilting.
- the first support portion 410 is still the main support structure and the second support portion 420 is the auxiliary support structure, that is, the first support portion 410 is tightly fitted and the second support portion 420 is loosely fitted, ensuring that the carrier 200 always has a small overturning moment, so as to reduce the risk of the carrier 200 tilting.
- the first support portion 410, the second support portion 420, and the driving member 310 are disposed on the same side.
- the first carrier sidewall 211 of the carrier 200 has a relatively long dimension. Therefore, the support surfaces of the first support portion 410 and the second support portion 420, both located on the first carrier sidewall 211 of the carrier 200, are not significantly different. That is, both the first support portion 410 and the second support portion 420 have two end sides in the direction parallel to the optical axis. The distance between the two end sides of the first support portion 410 is approximately the same as the distance between the two end sides of the second support portion 420.
- the two end sides of the first support portion 410 are two balls
- the two end sides of the second support portion 420 are the two ends of the top guide rod 423 or two balls.
- the ball bearing spacing of the first support portion 410 is approximately the same as the ball bearing spacing of the second support portion 420 or the effective length of the top guide rod 423. In this way, the friction contact position 213 between the friction head 311 and the carrier 200 does not need to be eccentric.
- the straight-line distance from the friction contact position 213 to the first support part 410 and the straight-line distance from the friction contact position 213 to the second support part 420 are equal. This helps to improve the stability of the carrier 200, and when the carrier 200 is driven to move along the optical axis, the point of action of the friction head 311 on the carrier 200 is not likely to move out of the range of the side support surface.
- the second support 420 can be implemented as a ball bearing or a top guide rod 423.
- the carrier 200 and the outer frame 100 are respectively provided with L-shaped guide grooves 440 to clamp the ball bearing of the second support 420 between the L-shaped guide grooves 440, as shown in FIG9.
- the opening of the L-shaped guide groove 440 of the carrier 200 is along the pre-pressure direction, and the opening of the L-shaped guide groove 440 of the outer frame 100 faces the opposite direction.
- the ball bearing of the second support 420 has an adjustment space perpendicular to the pre-pressure direction in the pair of L-shaped guide grooves 440.
- the ball bearing of the second support 420 is clamped in the pair of L-shaped guide grooves 440 in the left-right direction parallel to the pre-pressure. Therefore, when no pre-pressure is applied, the carrier 200 may sway left and right, and the ball bearing of the second support 420 may fall off.
- the second support 420 is implemented as a top guide rod 423, serving as an auxiliary support for the first support 410.
- the corresponding abutting surfaces of the first sidewall 110 of the outer frame 100 and the corresponding abutting surfaces of the first carrier sidewall 211 of the carrier 200 are recessed downwards or upwards, forming U-shaped guide grooves 450 with openings facing upwards or downwards, for mounting the top guide rod 423.
- the top surface of the first carrier sidewall 211 of the carrier 200 is provided with a U-shaped guide groove 450.
- the second support 420 is implemented as a top guide rod 423, which is placed within the U-shaped guide groove 450.
- Both ends of the top guide rod 423 are fixed to the outer frame 100. Thus, even without preload, the carrier 200 is less likely to shake, and the top guide rod 423 will not fall off.
- a pressing fitting 470 is provided at the top of the U-shaped guide groove 450 to press down the top of the carrier 200, thus preventing the top guide rod 423 from tilting up within the U-shaped guide groove 450.
- the pressing fitting 470 is installed from top to bottom corresponding to the U-shaped guide groove 450 of the carrier 200 and has a protrusion to abut against the top guide rod 423.
- the pressing fitting 470 is fixed to the outer frame 100.
- the U-shaped guide groove 450 may also be used when the first support portion 410 or the second support portion 420 is implemented as a ball bearing.
- the first support portion 410 and the pre-pressure actuation component 300 are positioned on the same side.
- the drive component 310 is positioned closer to the first support portion 410, which has a larger distance between the balls.
- This design improves space utilization. Since both the drive component 310 and the pre-pressure component 320 extend along the optical axis, the corresponding sidewall of the carrier 200 on the first side also needs to extend along the optical axis. This means the first carrier sidewall 211 of the carrier 200 needs a certain length, and the first support portion 410, located on the bottom surface of the first carrier sidewall 211, allows for more space to accommodate the two balls of the first support portion 410.
- the second carrier sidewall 212 of the carrier 200 does not require the drive component 310 and can be shorter to accommodate the second support portion 420 and the third support portion 430.
- This not only makes the overall structure of the periscope camera module more compact but also helps reduce the overall size of the periscope camera module.
- this design also helps the ball bearings to always support the carrier 200 during the long travel.
- the length of the second carrier sidewall 212 of the carrier 200 is less than the length of the first carrier sidewall 211.
- the second carrier sidewall 212 of the carrier 200 only has ball bearings, and the distance between the ball bearings can be adjusted. Moreover, as long as the distance between the two ball bearings of the first support part 410 is large enough, the overall structural balance can be satisfied. Therefore, the second carrier sidewall 212 of the carrier 200 does not need to be stretched to have the same length as the first carrier sidewall 211.
- the ball spacing between the two balls of the first support portion 410 is not less than the ball spacing of the second support portion 420, and the greater the distance between the two balls along the optical axis, the more stable the support for the carrier 200.
- the ball spacing between the two balls of the first support portion 410 is greater than the ball spacing between the two balls of the second support portion 420, and in some preferred embodiments, it is more than 1.5 times. Further, in some optional embodiments, the spacing between the two L-shaped guide grooves 440 clamping the first support portion 410 is more than 1.5 times the spacing between the two L-shaped guide grooves 440 or U-shaped guide grooves 450 clamping the second support portion 420, wherein the ball spacing and all guide groove spacings are spacings along the direction parallel to the optical axis.
- the first support portion 410 and the driving member 310 are disposed on the same side on the first side, and the second support portion 420 is disposed on the second side, the first support portion 410 is disposed at the bottom of the first carrier sidewall 211 of the carrier 200, and the second support portion 420 is located at the top of the second carrier sidewall 212 of the carrier 200.
- the first support portion 410 and the second support portion 420 are symmetrically arranged with respect to the optical axis along the height direction.
- the friction contact position 213 between the friction head 311 of the driving member 310 and the carrier 200 is located on the first carrier sidewall 211 of the carrier 200, which is closer to the first support portion 410.
- the first support portion 410 provides a larger support range for the carrier 200.
- the friction contact position 213 between the friction head 311 and the carrier 200 is less likely to move out of the support range provided by the first support portion 410, and the carrier 200 receives more stable support.
- the body 200 is supported in the height direction, effectively preventing the carrier 200 from tilting or overturning.
- the four balls of the first support part 410 and the second support part 420 form a side support surface on the first carrier side wall 211 of the carrier 200.
- the contact position 213 between the friction head 311 of the driving member 310 and the carrier 200 is set close to the first support portion 410. That is, when the driving member 310 is not energized, the straight-line distance from the friction contact position 213 to the second support portion 420 is greater than the straight-line distance from the friction contact position 213 to the first support portion 410. In other words, the height of the friction head 311 of the driving member 310 is set as close as possible to the first support portion 410. Since the ball pitch of the first support portion 410 is greater than the ball pitch of the second support portion 420, the closer the height of the friction head 311 is to the first support portion 410, the wider the range covered by the side support surface.
- the first support portion 410 and the third support portion 430 each have two end sides in the direction parallel to the optical axis.
- the distance between the two end sides of the first support portion 410 is approximately not less than the distance between the two end sides of the third support portion 430.
- both end sides of the first support portion 410 and the third support portion 430 are two balls, and the ball spacing between the two balls of the first support portion 410 is not less than the ball spacing of the third support portion 430.
- the first support part 410 and the third support part 430 will form an approximately rectangular ball support surface.
- the point of application of the magnetic attraction force on the carrier 200 may move out of the ball support surface. If the point of application of the magnetic attraction force moves out of the range of the ball support surface, a torque will be generated, which may easily cause the carrier 200 to tilt or flip. (The straight-line distance from the point of application of the magnetic attraction force to the line connecting the two balls in the width direction is the lever arm). Therefore, it is necessary to keep the point of application of the magnetic attraction force within the range of the ball support surface.
- the ball spacing between the two balls of the first support portion 410 is greater than the ball spacing between the two balls of the third support portion 430, and in some preferred embodiments, it is more than 1.5 times. Further, in some optional embodiments, the distance between the two L-shaped guide grooves 440 clamping the first support portion 410 is more than 1.5 times the distance between the two inclined sidewall guide grooves 460 clamping the third support portion 430, wherein the aforementioned ball spacing and all guide groove spacings are spacings along the direction parallel to the optical axis.
- a magnetic support surface is formed between the four balls of the first support part 410 and the third support part 430 on the bottom surface of the carrier 200.
- the ball spacing of the first support part 410 is larger than that of the third support part 430.
- this increases the area of the magnetic support surface, so that the magnetic attraction of the magnetic component 600 to the bottom surface of the carrier 200 is always within the magnetic support surface, making the carrier 200 more stable and preventing the carrier 200 from detaching or tilting during movement or falling.
- the magnetic attraction force generated between the magnetic magnet 610 and the yoke 620 clamps the first support part 410 and the third support part 430 between the bottom surface of the carrier 200 and the top surface of the middle part of the outer frame 100, so that the carrier 200 is always supported, reducing the magnetic attraction of the carrier 200 and the risk of corresponding support failure, and reducing the probability of the carrier 200 tilting as a result.
- the magnetic attraction component 600 is positioned at the bottom of the carrier 200 near the first support portion 410 to ensure that the point of application of the magnetic attraction force is always located within the magnetic support surface, thus preventing the carrier 200 from tilting.
- the magnetic attraction point can be prevented from moving out of the range of the magnetic support surface to a greater extent, and the carrier 200 can be prevented from tilting to a greater extent.
- the straight-line distance from the second support part 420 to the drive member 310 is not equal to the straight-line distance from the third support part 430 to the drive member 310, that is, the second support part 420 and the third support part 430 are not located in the same height direction, so as to provide more stable support for the carrier 200.
- the number of magnetic attracting stones 610 is one, and the bottom of the carrier 200 is provided with a groove for accommodating the magnetic attracting stone 610.
- the magnetic attracting stone 610 is disposed in the groove on the bottom surface of the carrier 200, and at least a portion of the magnetic attracting stone 610 is exposed so as to generate magnetic attraction force relative to the magnetic yoke 620 located on the outer frame 100.
- one of the magnetic attracting stones 610 is positioned close to the first support portion 410.
- the distance from the magnetic attracting stone 610 to the first support portion 410 is less than the distance from the magnetic attracting stone 610 to the second support portion 420.
- the position of the magnetic attracting stone 610 is closer to the first support portion 410, which has a larger ball bearing spacing. That is, because the ball bearing spacing of the first support portion 410 is larger, the first support portion 410 and the second support portion 420 form an approximately right-angled trapezoidal ball bearing support surface, making the support area of the balls near the first support portion 410 larger.
- the point of application of the magnetic attraction force on the carrier 200 can be located in the larger ball bearing support surface, which largely prevents the point of application of the magnetic attraction force from moving out of the range of the ball bearing support surface and largely prevents the carrier 200 from tilting.
- there are two magnetic attracting stones 610 which are symmetrically arranged at the bottom of the carrier 200 with respect to the optical axis, so that the point of application of the magnetic attraction force can be located at the midpoint of the line connecting the two magnetic attracting stones 610.
- the magnetic attraction force can move towards or away from the hypotenuse of the right-angled trapezoid.
- the point of application of the magnetic attraction force on the carrier 200 can have a larger range of movement without exceeding the range of the ball bearing support surface, thus preventing the carrier 200 from tilting.
- the first support portion 410, the second support portion 420, and the third support portion 430 are all implemented as two balls arranged along the optical axis.
- the ball size of the third support 430 is equal to the ball size of the first support 410. Since the first support 410 and the third support 430 are arranged opposite each other at the bottom of the carrier 200, the same size balls can make the carrier 200 more stably supported at the bottom, further reducing the occurrence of tilting of the carrier 200.
- the ball bearing size of the second support portion 420 is smaller than that of the first support portion 410 and the third support portion 430. It should be understood that the ball bearings of the first support portion 410 and the third support portion 430 are located at the bottom of the carrier 200, while the ball bearings of the second support portion 420 are located at the top of the carrier 200.
- This arrangement means that when the periscope camera module is dropped or impacted, the ball bearings of the first support portion 410 and the third support portion 430, because they need to support the entire carrier 200, are respectively positioned between the bottom of the first side wall 110 of the outer frame 100 and the bottom of the first carrier side wall 211 of the carrier 200, and between the bottom of the second side wall 120 of the outer frame 100 and the bottom of the second carrier side wall 212 of the carrier 200.
- the first support portion 410 and the third support portion 430 are tightly fitted in the direction of the magnetic attraction force, that is, the upper and lower sides of the balls of the first support portion 410 and the third support portion 430 abut against the ball groove (the balls of the first support portion 410 abut against the L-shaped guide groove 440, and the balls of the third support portion 430 abut against the inclined sidewall guide groove 460), while the second support portion 420 is loosely fitted, that is, at least one side of the balls of the second support portion 420 has a gap with the ball groove (i.e., the L-shaped guide groove 440) to alleviate the impact on the balls of the second support portion 420, when the periscope camera module falls or is impacted, the balls of the first support portion 410 and the third support portion 430 are subjected to a greater force and are more likely to produce dents.
- the ball groove i.e., the L-shaped guide groove 440
- the ball size of the first support portion 410 and the third support portion 430 to be larger, the force of impact on the ball of the first support portion 410 and the third support portion 430 can be dispersed, thereby reducing the degree of dents in the first support portion 410 and the third support portion 430.
- the diameter of the ball bearing in the first support portion 410 is 1 mm
- the diameter of the ball bearing in the second support portion 420 is 0.8 mm.
- the L-shaped guide groove 440 accommodating the ball bearing in the second support portion 420 is formed by the inward and downward indentation of the top of the carrier 200.
- the smaller diameter of the ball bearing in the second support portion 420 can reduce the thickness of the sidewall of the carrier 200 on the second side, that is, the thickness of the first carrier sidewall 211 of the carrier 200, thereby reducing the width of the periscope camera module.
- the ball size of the second support portion 420 may also be equal to the ball size of the first support portion 410.
- the ball bearings of the first support portion 410 and the third support portion 430 are designed to be larger, which can disperse the force when the first support portion 410 and the third support portion 430 are subjected to impact, and reduce the occurrence of dents in the first support portion 410 and the third support portion 430.
- the pre-pressure actuation assembly 300 includes a drive member 310 and a pre-pressure member 320 disposed on the first side wall 110 of the outer frame 100.
- the drive member 310 is located between the pre-pressure member 320 and the first carrier side wall 211 of the carrier 200.
- the pre-pressure member 320 applies a pre-pressure perpendicular to the first carrier side wall 211 of the carrier 200 to the drive member 310 so as to abut against the first carrier side wall 211 of the carrier 200, thereby realizing the lateral drive of the carrier 200 by the pre-pressure actuation assembly 300.
- the periscope camera module also includes a position sensing component 800.
- the position sensing component 800 includes a position sensing element 810 and a position sensing magnet 820, as shown in Figures 6 and 13.
- the position sensing element 810 is disposed on the second side wall 120 of the outer frame 100 and is disposed opposite to the pre-pressurization actuation component 300.
- the position sensing magnet 820 is disposed on the second carrier side wall 212 of the carrier 200 at the position corresponding to the position sensing element 810, as shown in Figures 6, 13, 16, 17, 29 and 30.
- the second carrier side wall 212 of the carrier 200 is provided with a sensing magnet groove 216 for mounting the position sensing magnet 820.
- the driving member 310 includes a piezoelectric vibrator 312 and a friction head 311 disposed on the side of the piezoelectric vibrator 312 facing the carrier 200, as shown in Figures 6, 11, 13 and 37.
- the friction head 311 and the pre-pressing member 320 are respectively located on both sides of the piezoelectric vibrator 312.
- the friction head 311 abuts against the first carrier sidewall 211 of the carrier 200 through the pre-pressing member 320.
- the piezoelectric vibrator 312 causes frictional connection between the friction head 311 and the carrier 200 through its own vibration or piezoelectric actuation, and drives the carrier 200 to move.
- the piezoelectric oscillator 312 is a substrate exhibiting the inverse piezoelectric effect and contracting or expanding according to the polarization direction and the electric field direction. It can be used by polarizing the substrate in the thickness direction using materials such as single crystals, polycrystalline ceramics, and polymers.
- the inverse piezoelectric effect refers to the mechanical deformation of a dielectric when a potential difference is generated when an electric field is applied in the polarization direction of the dielectric.
- the piezoelectric oscillator 312 has the function of ultrasonic oscillation, that is, it realizes oscillating reciprocating motion or elliptical motion on a specifically set electrode layer, thereby driving the friction head 311 to oscillate reciprocating motion or elliptical motion. In turn, through the friction between the friction head 311 and the outer wall of the carrier 200, the carrier 200 is driven to move relative to the outer frame 100.
- the piezoelectric vibrator 312 is disposed on the first sidewall 110 of the outer frame 100 along a direction parallel to the optical axis.
- the friction head 311 protrudes from the piezoelectric vibrator 312 on the side facing the carrier 200.
- the number of friction heads 311 can be one, or two or more. Under the vibration of the piezoelectric vibrator 312 or the piezoelectric actuation, the friction head 311 contacts and rubs against the first carrier sidewall 211 of the carrier 200, and drives the carrier 200 to move.
- the friction head 311 is implemented as two friction heads 311 spaced apart along the extension direction of the piezoelectric vibrator 312 or along the optical axis extension direction.
- the two friction heads 311 can cooperate with each other to drive the long-stroke movement of the carrier 200.
- the position of the friction head 311 on the piezoelectric vibrator 312 can be matched with the mode of the piezoelectric vibrator 312.
- the piezoelectric vibrator 312 bends and vibrates or is piezoelectrically actuated in a wave-valley mode in its thickness direction.
- the friction head 311 is placed at the corresponding position of the wave-valley to increase the friction between the friction head 311 and the carrier 200, thereby improving the driving effect on the carrier 200.
- the friction head 311 and the piezoelectric vibrator 312 can be implemented as an integral structure or as a detachable structure.
- the friction head 311 can be fixed to the piezoelectric vibrator 312 by means of bonding, snap-fitting, nesting, welding, or fastener connection.
- the connection between the friction head 311 and the piezoelectric vibrator 312 is a surface connection to ensure connection strength, and the friction head 311 can move with the deformation of the piezoelectric vibrator 312.
- the friction head 311 is made of wear-resistant materials, such as various high-hardness wear-resistant ceramic materials, such as alumina, zirconium oxide, silicon carbide ceramics, or high wear-resistant metal materials, carbon fiber materials, or composite materials of ceramics, metal particles and polymers, etc., in order to improve the wear resistance of the friction head 311, which is beneficial to improve the friction between the carrier 200 and the friction head 311, which is beneficial to improve the driving efficiency, and due to the wear resistance, it is beneficial to extend the service life of the friction head 311.
- various high-hardness wear-resistant ceramic materials such as alumina, zirconium oxide, silicon carbide ceramics, or high wear-resistant metal materials, carbon fiber materials, or composite materials of ceramics, metal particles and polymers, etc.
- the piezoelectric oscillator 312 can be made of piezoelectric ceramic material or piezoelectric single crystal material.
- the piezoelectric oscillator 312 can be a single-layer ceramic body or a single-layer single crystal, or it can be a multi-layer ceramic body or a multi-layer single crystal, such as lead zirconate titanate (PZT) based piezoelectric ceramics, potassium sodium niobate (KNN) based piezoelectric ceramics, barium titanate (BT) based piezoelectric ceramics, lead magnesium niobate-lead indium niobate (PMN-PT) based piezoelectric single crystals, etc.
- PZT lead zirconate titanate
- KNN potassium sodium niobate
- BT barium titanate
- PMN-PT lead magnesium niobate-lead indium niobate
- the preload member 320 applies a preload towards the carrier 200 to the drive member 310, so that the friction head 311 of the drive member 310 always maintains frictional contact with the first carrier sidewall 211 of the carrier 200. Since the piezoelectric vibrator 312 undergoes mechanical deformation during drive, the preload member 320 has an elastically deformable portion (elastic portion 3212) for abutting against the piezoelectric vibrator 312 and a fixing portion 3211 for mounting the piezoelectric vibrator 312, so as to fix the piezoelectric vibrator 312 and apply a preload towards the carrier 200 to the drive member 310, thereby maintaining frictional contact between the friction head 311 and the carrier 200.
- elastic portion 3212 elastic portion 3212
- the preload 320 is implemented as a spring sheet 321 extending in a direction parallel to the optical axis.
- the spring sheet 321 assembles the piezoelectric vibrator 312 onto the first sidewall 110 of the outer frame 100.
- the spring sheet 321 has a first fixed end 32111, a second fixed end 32112, and a third fixed end 32113 distributed in a direction parallel to the optical axis.
- a first elastic portion 32121 is provided between the first fixed end 32111 and the second fixed end 32112.
- a second elastic portion 32122 is provided between the second fixed end 32112 and the third fixed end 32113.
- the first fixed end 32111, the second fixed end 32112, and the third fixed end 32113 are fixed to the first side wall 110 of the outer frame 100 by welding, riveting, or bonding.
- the first elastic portion 32121 and the second elastic portion 32122 both extend parallel to the optical axis to connect adjacent fixed ends and apply appropriate preload to the drive member 310 by utilizing their own elastic deformation properties.
- the preload member 320 can also be implemented as an elastic adhesive.
- the pre-compression member 320 includes the aforementioned spring piece 321 and at least one clamping piece 322 extending from the spring piece 321 toward the carrier 200, as shown in Figures 6, 11 and 37.
- One side of the clamping piece 322 is connected to the second fixed end 32112 of the spring piece 321.
- the clamping piece 322 has a first clamping arm and a second clamping arm on the side toward the carrier 200. The first clamping arm and the second clamping arm extend toward the carrier 200 in a direction perpendicular to the optical axis to clamp the piezoelectric vibrator 312 to ensure its installation stability.
- the piezoelectric vibrator 312 drives the friction head 311 through its own bending vibration or piezoelectric actuation, the larger the extension dimension of the clamping arm, the larger the overlapping area between the piezoelectric vibrator 312 and the clamping arm of the clamping plate 322, and the greater the impact on the vibration or piezoelectric actuation of the piezoelectric vibrator 312.
- the clamping arm dimension of the clamping plate 322 should not be greater than 1/2 of the side wall length (i.e., the length along the optical axis) of the piezoelectric vibrator 312, to avoid the clamping arm of the clamping plate 322 clamping too tightly or the overlapping area between the clamping arm and the piezoelectric vibrator 312 being too large, which would suppress the vibration or piezoelectric actuation of the piezoelectric vibrator 312.
- the spring 321 is implemented as a planar spring, or it can be implemented as a spring 321 with a bent structure.
- the spring 321 includes at least two fixing portions 3211 disposed on the first side wall 110 of the outer frame 100 and an elastic portion 3212 connecting two adjacent fixing portions 3211, as shown in Figures 18 and 19.
- the fixing portion 3211 includes a first fixing portion 32114 and a second fixing portion 32115 fixed on the first side wall 110 of the outer frame 100.
- the first fixing portion 32114 and the second fixing portion 32115 can be fixed to the outside of the first side wall 110 of the outer frame 100 by means of welding, riveting or bonding.
- the elastic portion 3212 extends in a direction parallel to the optical axis and has a bent portion 3213 facing the piezoelectric vibrator 312 to apply a pre-pressure of the carrier 200 to the friction head 311 on the piezoelectric vibrator 312.
- a conductive component 700 is provided on the piezoelectric vibrator 312, and the conductive component 700 is assembled between the piezoelectric vibrator 312 and the elastic part 3212 to facilitate the assembly and driving of the drive member 310.
- the first bending portion 32131 and the second bending portion 32132 are connected to the first fixing portion 32114, the elastic portion 3212, and the second fixing portion 32115 in opposite inclined directions, so that the pre-pressing component has an opening with a gradually increasing size extending outward from the elastic portion 3212, that is, the extension line of the first bending portion 32131 intersects the extension line of the second bending portion 32132.
- the elastic portion 3212 protrudes outward from the fixing portion 3211, that is, the distance from the plane where the elastic portion 3212 is located to the carrier 200 is greater than the distance from the plane where the fixing portion 3211 is located to the carrier 200.
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Abstract
潜望摄像模组,包括:外框体(100);载体(200);预压致动组件(300);以及支撑组件(400);其中,在预压致动组件(300)未被通电的状态下,预压致动组件(300)与载体(200)侧壁之间的摩擦作用点至第一支撑部(410)在载体(200)侧壁的支撑点的距离,与至第二支撑部(420)在载体(200)侧壁的支撑点的距离相等。采用侧面驱动的驱动方案,以解决现有潜望摄像模组的镜头规格尺寸因技术迭代增大所造成的驱动问题,另外,第一支撑部(410)、第二支撑部(420)以及预压致动组件(300)被设置于载体(200)的同一侧,且在未通电状态下,预压致动组件(300)的摩擦头(311)至第一支撑部(410)的距离与至第二支撑部(420)的距离相等,使载体(200)在与预压致动组件(300)摩擦接触的侧面受到足够的支撑,且受力平衡,进一步提升载体(200)移动的稳定性。
Description
本发明涉及潜望摄像模组,具体涉及一种运用压电马达的潜望摄像模组。
随着生活水平的提高,用户对于移动终端设备摄像功能的要求也在不断提高,其中对远摄提出了需求,要求能够清楚地拍摄远处的画面,比如对焦距离远,对焦精度高。
为实现上述远摄功能,终端设备通常采用潜望摄像模组,利用其马达驱动镜头移动以实现对焦变焦的基础功能,进而获取清晰的较远被摄体的图像。但随着用户需求的提升,潜望镜头的参数规格不断被要求迭代,相应的镜头尺寸和重量不断地变大,因此对驱动镜头移动的马达的推力和行程要求也逐渐变高,还有对对焦精度也提出进一步需求。由于推力要求增大,马达自身体积也逐渐增加,反而阻碍了潜望摄像模组技术迭代中的轻薄化实现。现有采用电磁式马达的驱动方案,但其存在行程较短、体积较大、电磁干扰等问题,已不满足未来手机摄像中潜望摄像模组技术需求。
此外,需要采用新型驱动方式来应用到如潜望或长行程摄像模组中时,比如压电式等摩擦接触的致动方式时,需要采用新的马达架构,预防或降低马达对镜头载体造成的偏移或脱离感光路径的风险的产生,同时避免载体因在其摩擦接触面上未受到足够支撑或受力不平衡而产生倾斜或翻转,避免在长行程移动中承载镜头的活动载体因受力不平衡发生倾斜或翻转,导致与马达之间产生间隙或直接分离,减小对摄像模组对焦效果的不良影响,进一步提高载体移动的稳定性。同时,新的马达架构在设计时还需考虑对载体运动状态的不良影响,避免载体在运动时可能会发生倾覆或卡死导致潜望摄像模组无法正常工作。另一方面,为了进一步满足电子设备小型化的发展趋势,潜望摄像模组在设计时需要限制自身的高度,从而提升潜望摄像模组整体结构的紧凑性和合理性。
本申请的一个目的在于描述了一种潜望摄像模组,包括被装配于外框体和载体之间的驱动件、预压件和支撑件。所述预压件对驱动件施加垂直于光轴方向上的预压力,使驱动件与载体抵接并保持摩擦接触,以便驱动载体带动镜片移动。所述支撑件包括第一支撑部,所述第一支撑部和第二支撑部于高度方向设于所述驱动件的上下两侧。
在另一方面,本申请还描述了一种潜望摄像模组,包括外框体、载体、预压致动组件和磁吸组件,所述预压致动组件被装配于所述外框体朝向所述载体的一侧壁,所述磁吸组件相对设置于所述外框体底部和载体底部,所述载体受到的预压力方向和磁吸力方向相互垂直且均垂直于光轴。
在另一方面,本申请描述了一种潜望摄像模组,包括设于外框体一侧的预压致动组件、第一支撑部以及第二支撑部。所述第一支撑部与所述预压致动组件同侧设置,且所述第一支撑部被紧配于外框体与载体之间,所述第二支撑部被松配于外框体与载体之间,且所述第二支撑部与所述预压致动组件异侧设置。
本申请的另一个目的在于描述了一种潜望摄像模组,包括被装配于外框体和载体之间的驱动件、预压件和支撑件。所述预压件对驱动件施加垂直于光轴方向上的预压力,使驱动件与载体抵接并保持摩擦接触,以便驱动载体带动镜片移动。所述支撑件包括第一支撑部,所述第一支撑部和第二支撑部于高度方向设于所述驱动件的上下两侧。其中,所述预压致动组件的设置位置在垂直于载体底面的方向上更接近所述第一支撑部。
根据本申请的一个方面,提供一种潜望摄像模组,其包括:
外框体;
至少一载体,被设置于外框体内侧并可沿光轴方向移动;
预压致动组件,被设置于所述载体的一侧,并对所述载体施加垂直于光轴方向的预压力,用于驱动所述载体沿光轴方向移动;以及
被装配于所述外框体和所述载体之间的支撑组件,所述支撑组件包括第一支撑部和第二支撑部,所述第一支撑部和所述第二支撑部均被设置于与所述预压致动组件接触的所述载体的一侧,且所述第一支撑部与所述第二支撑部分别位于所述预压致动组件的上下两侧;
其中,在所述预压致动组件静止的状态下,所述预压致动组件与所述载体侧壁之间的摩擦作用点至所述第一支撑部在该载体侧壁的支撑点的距离,与至所述第二支撑部在该载体侧壁的支撑点的距离相等。
根据本申请的另一个方面,提供一种潜望摄像模组,其包括:
外框体;
能够在所述外框体内侧沿光轴方向移动的载体,用于承载至少一透镜;
预压致动组件,其被设置于所述载体的侧部,并对所述载体施加垂直于光轴方向的预压力,用于驱动所述载体沿光轴方向移动;
被装配于所述外框体和所述载体之间的支撑组件;以及
磁吸组件,其被设置于所述载体的底部并包括相对设置于所述外框体和所述载体上一对磁元件且沿平行于光轴方向延伸,所述磁吸组件产生垂直于预压力方向的磁吸力。
根据本申请的另一个方面,提供一种潜望摄像模组,其包括:
外框体;
能够在所述外框体内侧沿光轴方向移动的载体,用于承载至少一透镜;
预压致动组件,被设置于所述载体的一侧,并对所述载体施加垂直于光轴方向的预压力,以用于驱动所述载体沿光轴方向移动;以及
被装配于所述外框体和所述载体之间的支撑组件,所述支撑组件包括第一支撑部和第二支撑部;
其中,所述第一支撑部与所述第二支撑部分别被设置于所述载体的相对两侧,所述第一支撑部被设置于与所述预压致动组件接触的所述载体的一侧,且所述第一支撑部被紧配于所述外框体的底部与所述载体的底部之间,所述第二支撑部被设置于不与所述预压致动组件接触的所述载体的另一侧且被松配于所述外框体与所述载体之间;
所述预压致动组件包括:
预压件,被装配于所述外框体的一侧壁上;
驱动件,被装配于所述预压件与所述载体的一侧壁之间;
其中,所述预压件向所述驱动件施加朝向所述载体并垂直于所述载体的该侧壁的预压力,用于保持所述驱动件与所述载体的该侧壁之间的摩擦接触。
根据本申请的另一个方面,提供一种潜望摄像模组,其包括:
外框体;
能够在所述外框体内侧沿光轴方向移动的载体,用于承载至少一透镜;
预压致动组件,被设置于所述载体的一侧,并对所述载体施加垂直于光轴方向的预压力,以用于驱动所述载体沿光轴方向移动;以及
被装配于所述外框体和所述载体之间的支撑组件,所述支撑组件包括至少两个支撑部,其中至少一个所述支撑部被装配于具有所述预压致动组件的所述外框体的侧壁与所述载体的对应侧壁之间,至少两个所述支撑部沿光轴方向相对设置于所述载体的底部;
其中,至少两个所述支撑部沿光轴方向均具有两个端侧,其中至少一个被装配于具有所述预压致动组件的所述外框体的侧壁与所述载体的对应侧壁之间的所述支撑部的端侧间距大于另至少一个所述支撑部的端侧间距。
根据本申请的另一个方面,提供一种潜望摄像模组,其包括:
外框体;
能够在外框体内侧沿光轴方向移动的载体,用于承载至少一透镜;
预压致动组件,被设置于所述载体的一侧,并具有至少一摩擦头,所述预压致动组件通过所述摩擦头对所述载体施加垂直于光轴方向的预压力,用于驱动所述载体沿光轴方向移动;以及
被装配于所述外框体和所述载体之间的支撑组件,所述支撑组件包括分别位于所述载体的相对两侧的第一支撑部和第二支撑部,所述第一支撑部被设置于与所述预压致动组件接触的所述载体的一侧,并被设置于所述外框体的底部与所述载体的底部之间;
其中,在所述预压致动组件未被通电的状态下,所述第二支撑部在具有所述预压致动组件的该外框体侧壁上的投影至所述摩擦头的距离大于所述第一支撑部在具有所述预压致动组件的该外框体侧壁上的投影至所述摩擦头的距离;
所述预压致动组件包括:
预压件,被装配于所述外框体的一侧壁上;
驱动件,被装配于所述预压件与所述载体的一侧壁之间,并具有一与所述载体的该侧壁摩擦连接的摩擦头;
其中,所述预压件向所述驱动件施加朝向所述载体并垂直于所述载体的该侧壁的预压力,用于保持所述驱动件与所述载体的该侧壁之间的摩擦接触。
图1为本发明实施例所提供的潜望摄像模组整体结构示意图(未展示光转折模块和固定镜头)。
图2为图1的A处结构放大图。
图3为本发明另一实施例所提供的潜望摄像模组整体结构示意图(未展示光转折模块和固定镜头)。
图4为本发明另一实施例所提供的去除导电组件状态下的预压致动组件安装示意图(未展示光转折模块和固定镜头)。
图5为本发明实施例所提供的潜望摄像模组整体结构俯视图(未展示光转折模块和固定镜头)。
图6为图5的A-A剖视图。
图7为图6的B处结构放大图。
图8为图6的C处结构放大图。
图9为图6的D处结构放大图。
图10为图6的E处结构放大图。
图11为本发明一实施例所提供的去除外框体状态下的潜望摄像模组整体结构示意图。
图12为本发明一实施例所提供的去除外框体状态下的潜望摄像模组整体结构仰视图。
图13为本发明一实施例所提供的载体、支撑组件的结构示意图。
图14为本发明另一实施例所提供的去除外框体状态下的潜望摄像模组整体结构示意图。
图15为本发明另一实施例所提供的去除外框体状态下的潜望摄像模组整体结构仰视图。
图16为本发明另一实施例所提供的去除外框体状态下的潜望摄像模组整体结构立体图。
图17为另一视角下的本发明另一实施例所提供的去除外框体状态下的潜望摄像模组整体结构立体图。
图18为本发明一实施例所提供的平面弹片结构示意图。
图19为本发明另一实施例所提供的弹片结构示意图。
图20为本发明又一个实施例所提供的弹片结构示意图。
图21为本发明另一实施例所提供的潜望摄像模组整体结构俯视图(未展示光转折模块和固定镜头)。
图22为图21的F-F剖视图。
图23为图21的G-G剖视图。
图24为图22的H处结构放大图。
图25为图22的I处结构放大图。
图26为图22的J处结构放大图。
图27为图23的K处结构放大图。
图28为本发明一实施例所提供的磁轭结构示意图。
图29为本发明一实施例所提供的去除外框体状态下的潜望摄像模组整体结构仰视图。
图30为本发明一实施例所提供的载体、支撑组件的结构示意图。
图31为本发明另一实施例所提供的去除外框体状态下的潜望摄像模组中预压致动组件、磁轭以及金属件的装配立体图。
图32为本发明另一实施例所提供的去除外框体状态下的潜望摄像模组中预压致动组件、磁轭以及金属件的装配爆炸图。
图33为本发明另一实施例所提供的去除外框体状态下的潜望摄像模组中预压致动组件、磁轭以及金属件的装配示意图。
图34为本发明另一实施例所提供的载体、磁吸磁石的结构示意图。
图35为本发明又一实施例所提供的载体、磁吸磁石的结构示意图。
图36为本发明另一实施例所提供的去除导电组件状态下的预压致动组件安装示意图(未展示光转折模块和固定镜头)。
图37为本发明一实施例所提供的去除外框体状态下的潜望摄像模组整体结构示意图。
图中:100、外框体;110、第一侧壁;111、驱动件安装区;112、第一抵接面;120、第二侧壁;121、第二抵接面;200、载体;210、镜头载体;211、第一载体侧壁;2111、第三抵接面;212、第二载体侧壁;2121、第四抵接面;213、接触位置;214、摩擦板;215、阻尼件;216、感测磁石凹槽;300、预压致动组件;310、驱动件;311、摩擦头;312、压电振子;320、预压件;321、弹片;3211、固定部;32111、第一固定端;32112、第二固定端;32113、第三固定端;32114、第一固定部;32115、第二固定部;3212、弹性部;32121、第一弹性部;32122、第二弹性部;32123、镂空结构;3213、折弯部;32131、第一折弯部;32132、第二折弯部;322、夹持片;323、缓冲件;324、结构件;400、支撑组件;410、第一支撑部;411、第一滚珠;412、第二滚珠;420、第二支撑部;421、第三滚珠;422、第四滚珠;423、顶部导杆;430、第三支撑部;431、第五滚珠;432、第六滚珠;440、L型导槽;450、U型导槽;460、斜侧壁导向槽;470、抵压配件;480、金属件;500、光学组件;510、光转折模块;520、透镜;600、磁吸组件;610、磁吸磁石;620、磁轭;621、平面段;622、弯折段;6211、投影区;6212、连接区;623、边缘段;700、导电组件;800、位置感测组件;810、位置感测元件;820、位置感测磁石。
下面,结合具体实施方式,对本申请做进一步描述,需要说明的是,在不相冲突的前提下,以下描述的各实施例之间或各技术特征之间可以任意组合形成新的实施例。
在本申请的描述中,需要说明的是,对于方位词,如有术语“中心”、“横向”、“纵向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示方位和位置关系为基于附图所示的方位或位置关系,仅是为了便于叙述本申请和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定方位构造和操作,不能理解为限制本申请的具体保护范围。
需要说明的是,本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。
本申请的说明书和权利要求书中的术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
以下将结合实施例和附图对本发明的构思、具体结构及产生的技术效果进行清楚、完整地描述,以充分地理解本发明的目的、特征和效果。显然,所描述的实施例只是本发明的一部分实施例,而不是全部实施例,基于本发明的实施例,本领域的技术人员在不付出创造性劳动的前提下所获得的其他实施例,均属于本发明保护的范围。另外,专利中涉及到的所有联接/连接关系,并非单指构件直接相接,而是指可根据具体实施情况,通过添加或减少联接辅件,来组成更优的联接结构。本发明创造中的各个技术特征,在不互相矛盾冲突的前提下可以交互组合。
如图1至图37所示,根据本申请实施例所述的潜望摄像模组被阐明,其包括外框体100、载体200、预压致动组件300以及支撑组件400。该外框体100具有至少一入光口和一出光口,该入光口和出光口用于允许光线进入并射出。该载体200在该外框体100内沿着一轴线方向移动,该轴线方向与该载体200所承载的光学元件(如镜头或镜片)的光轴方向一致或平行。参考图1、图2、图3、图4与图36所示,该外框体100包括沿着光轴方向延伸的一底部实体以及从该底部实体的两侧垂直向上延伸而成的两侧部实体,该预压致动组件300被装配于该外框体100的一侧部实体上,该预压致动组件300从侧面抵接并驱动该载体200,以使该载体200沿光轴方向移动,从而实现潜望摄像模组的变焦和/或对焦功能。该支撑组件400被对应地装配于该外框体100与该载体200的相对面之间,为该载体200始终沿光轴方向移动提供了更加平稳的支撑,该支撑组件400还可以减小该载体200的移动过程中可能产生的偏移、倾斜甚至卡死的风险。
本申请实施例所述的潜望摄像模组还包括光学组件500,其包括沿着光传播路径设置的固定光学组件和移动光学组件,该固定光学组件和该移动光学组件分别包括至少一透镜520,该固定光学组件被设置于该外框体100,该移动光学组件被设置于该载体200。在部分实施例中,如图1、图2、图3、图4与图36所示,光线经过从该外框体100的入光侧的开口进入,沿光轴依次穿过该固定光学组件和该移动光学组件,再从该外框体100的出光侧的开口穿出,则该外框体100的光线进入侧为入光侧,该外框体100的光线穿出侧为出光侧。
此外,潜望摄像模组还包括感光模块(图中未示出)和光转折模块510,光转折模块510改变入射光线的方向,并使转向后的光线依次经过该固定光学组件和移动光学组件,最后汇聚至该感光模块,由该感光模块接收光线并成像。
在本申请的具体示例中,光转折模块510被安装于该外框体100的入光侧,该感光模块被装配于该外框体100的出光侧。
相关技术提供的潜望摄像模组中,潜望摄像模组包括外框体100、载体200、驱动组件、光转折模块510、镜头模块(光学组件500)和感光模块,载体200在外框体100内沿光轴方向移动,光学组件500被设于位于光轴上的外框体100入光侧和载体200上,感光模块位于外框体100出光侧上,即外框体100、载体200、光转折模块510、镜头模块(光学组件500)和感光模块均位于光轴所在的水平空间内。在上述结构组成的情况下,驱动组件若于长度方向设于光轴上,会大幅度增加潜望摄像模组的长度,同时驱动组件所需推力较大,会导致驱动组件尺寸大小难以缩减,从而增大潜望摄像模组的整体尺寸;驱动组件若于高度方向设于载体200顶侧或底侧,会增加潜望摄像模组的高度,不利于提升潜望摄像模组以及电子设备的结构紧凑性。
应可以理解,潜望摄像模组以“躺”的贴合方式设置于电子设备中,例如,潜望摄像模组中的光转折模块510、镜头模块(即光学组件500)和感光模块分别沿电子设备的长度方向或宽度方向被布置,这样可以避免由于潜望摄像模组的长度较长而增加电子设备的高度(即厚度)。换言之,电子设备的高度(即厚度)受限于潜望摄像模组的高度,而与潜望摄像模组的长度和宽度无关。
其中,感光模块包括感光组件和滤光组件,该滤光组件被设于光学组件500与该感光组件之间,并位于该感光组件的感光路径上,用于过滤进入感光组件前的光线,感光组件设于该外框体100的出光侧。其中,该滤光组件包括滤光元件以及滤光元件支架,该滤光元件支架位于该滤光元件与该外框体100的出光侧之间或者该滤光元件与该载体200之间,以使滤光元件位于感光路径上。具体地,该感光组件被实施为线路板以及安装于该线路板上的感光芯片和电子元件。
随着用户对模组摄像功能的需求越来越高,长行程和大推力导致驱动马达的体积也在不断增大。同时随着电子设备轻薄化发展的进程,潜望摄像模组的高度仍会成为降低电子设备高度减小的障碍,因此,在本申请中,通过对潜望摄像模组的结构进行设计,以缩小驱动马达的体积,同时避免潜望摄像模组的高度增加,从而满足电子设备小型化的发展趋势。需要开发具有大推力和较小尺寸体积的马达器件以及相应的新的潜望摄像模组的驱动架构。其中压电马达是一种前沿但具有应用潜力的摄像马达方案,具有大推力、小尺寸、低功耗、快速相应和无磁干扰等优势,相应的新的潜望摄像模组的驱动架构具有更小的总高。
本申请提出一种新的潜望摄像模组的驱动架构,包括外框体100、载体200、支撑组件400以及预压致动组件300,预压致动组件300从载体200的侧壁沿垂直于光轴方向对载体200施加预压力,使载体200与预压致动组件300保持摩擦接触并驱动该载体200沿光轴方向运动,即通过摩擦接触的方式驱动该载体200移动,从而减小载体200移动所需的驱动结构的体积。
应可以理解,该预压致动组件300包括驱动件310和预压件320,还包括用于将预压致动组件300导通的导电组件700,驱动件310、预压件320以及导电组件700依次设置于该载体200的一侧,因此潜望摄像模组内需要预留一定空间以设置上述预压致动组件300的各个部件。如果将预压致动组件300设置于载体200的底侧和顶侧,则会造成潜望摄像模组的高度尺寸的增加,进而增加电子设备的高度。
为了避免上述情况的产生,在本申请中,将预压致动组件300设置于载体200的侧部,不仅可以充分利用潜望摄像模组侧部的空间,保证潜望摄像模组整体结构的紧凑性和合理性,还可以避免增加潜望摄像模组的高度。
进一步地,为了保证该载体200在潜望摄像模组中的稳定性,避免该载体200在移动或翻转设备时脱落,本申请的潜望摄像模组还包括磁吸组件600,该磁吸组件600相对设置于该外框体100和该载体200上且沿平行于光轴方向延伸,并对该载体200施加垂直于光轴方向和预压力方向的磁吸力。其中,该磁吸组件600包括磁吸磁石610和磁轭620,该磁吸磁石610被设置于该载体200和该外框体100二者中的一个,该磁轭620被设置于该载体200和该外框体100二者中的另一个,该磁吸磁石610和该磁轭620之间产生磁吸力,以保证载体200在长行程的运动过程中不至于产生较大偏移,从而保持该载体200被稳定地设置于潜望摄像模组中,提高潜望摄像模组的可靠性。
在本申请的一些实施例中,该磁吸组件600对该载体200的磁吸力方向与该预压致动组件300对该载体200的预压力方向相互垂直,以避免预压力和磁吸力相互叠加对预压致动组件300产生过大的驱动负担。
如果预压力方向与磁吸力方向平行,当预压力方向与磁吸力方向相同时,即磁吸力方向优选竖直向下(以保证该载体200被稳定地设置于潜望摄像模组中),预压力方向也竖直向下,这种情况下,该预压致动组件300需要设置于该载体200的上侧,会导致潜望摄像模组的高度增加,而且,预压力与磁吸力相互叠加,使得需要提供更大的驱动力才能驱动载体200移动,这样会需要为驱动件310提供更大的电压,从而增大了驱动件310的体积和尺寸;当预压力方向与磁吸力方向相反时,即磁吸力方向竖直向下,预压力方向竖直向上,这种情况下,预压致动组件300需要设置于载体200的底侧,会导致潜望摄像模组的高度增加,同时方向相反的磁吸力和预压力会相互抵消部分或全部作用力,从而影响该预压致动组件300的驱动效果和该载体200在该外框体100上的稳定性。
另外,预压力与磁吸力相互叠加会造成支撑组件400(例如滚珠)与该载体200之间或支撑组件400(例如滚珠)与该外框体100之间磨损严重,在支撑组件400(例如滚珠)的表面、载体200的表面或外框体100的表面产生凹坑,影响驱动效果,或者由于摩擦而产生碎屑或损坏,增大运行时该支撑组件400(例如滚珠)的卡死风险,影响运行效果。
因此不同作用方向且相互垂直的预压力和磁吸力可以避免该预压致动组件300与该磁吸组件600之间产生相互干扰,以最大程度地发挥预压力和磁吸力的作用,即该预压致动组件300作用于该载体200的侧部,为该载体200沿光轴方向的移动提供驱动力,该磁吸组件600设置于底部使得该载体200可以在长行程移动中可以保持平稳,换言之,以最大程度提升该预压致动组件300的驱动效果和该载体200在该外框体100上的稳定性,从而提高潜望摄像模组的稳定性和可靠性。而且,当需要对预压力或预压力的大小进行调整时,预压力和磁吸力的作用方向相互垂直,使得位于侧部的该预压致动组件300和位于底部的该磁吸组件600更容易调整,以减小或避免作用力方向对作用程度调整的不良影响,减少了调整中的干扰因素。
进一步地,该磁吸组件600对该载体200的磁吸力方向与该预压致动组件300对该载体200的预压力方向均垂直于光轴方向,以进一步避免磁吸力和预压力对驱动力的干扰,从而将该载体200受到的力分离成三个方向相互垂直互不干扰的力,即在宽度方向上的预压力、在高度方向上的磁吸力以及在长度方向(光轴方向)上的驱动力。其中,该磁吸组件600被设置于该载体200的底部,即该磁吸磁石610与该磁轭620之间产生的磁吸力沿潜望摄像模组(即该外框体100)的高度方向,预压件320产生的预压力沿潜望摄像模组(即该外框体100)的宽度方向。
在部分可选实施例中,位于载体200的磁吸件(如磁吸磁石610)和位于外框体100的磁轭620之间产生磁吸力,该磁吸件与该磁轭620组成位于载体200底侧的磁吸结构,磁吸结构可以产生磁吸力以保证载体200在长行程的运动过程中不至于产生较大偏移,同时,位于底侧的磁吸结构可以避免预压力和磁吸力叠加,对预压致动组件300产生太大驱动负担。
在本申请的一些实施例中,该磁吸组件600对该载体200的磁吸力方向与该预压致动组件300对该载体200的预压力方向相互垂直,以避免预压力和磁吸力相互叠加对预压致动组件300产生过大的驱动负担。
在本申请的具体示例中,该外框体100自入光侧的左右两侧边沿平行于光轴方向延伸形成两侧壁,至少一预压致动组件300被装配于该外框体100的其中一侧壁上,将该外框体100的该侧壁设为该外框体100的第一侧壁110,将与该外框体100的第一侧壁110相对的另一侧壁设为该外框体100的第二侧壁120。同理,分别与该外框体100的该第一侧壁110和该第二侧壁120相对的该载体200的两侧壁对应设为该载体200的第一载体侧壁211和第二载体侧壁212。
其中,如图4所示,该外框体100于第一侧壁110具有用于装配该预压致动组件300的驱动件安装区111。在一些具体实施例中,该外框体100的该第一侧壁110的该驱动件安装区111可被实施为位于该外框体100的该第一侧壁110上的通孔,用于辅助该预压致动组件300的安装,该外框体100的该第一侧壁110上的该通孔的形状与该预压致动组件300的驱动件310外轮廓形状相对应并且该通孔的尺寸略大于该驱动件310的外轮廓形状尺寸。
更具体地,该外框体100的该第一侧壁110的外表面上沿该通孔的外周设有孔径略大于该通孔孔径的安装槽,用于从外侧定位该预压致动组件300的安装位置,以便安装该预压致动组件300。
在本申请的具体示例中,该载体200在该外框体100的空间内移动,并承载该移动光学组件,其中,该移动光学组件包括至少一个光学镜头,通过载体200的移动带动该移动光学组件移动,以实现潜望摄像模组的对焦和/或变焦功能。在部分可选实施例中,该移动光学组件包括两个光学镜头,该载体200的数量与光学镜头的数量对应,例如该载体200被实施为两个移动载体,两个移动载体分别带动两个光学透镜520沿光轴方向移动,以实现变焦和对焦功能。
具体地,该载体200被实施为具有第一载体侧壁211和第二载体侧壁212的镜头载体210,该镜头载体210被实施为分别承载有光学透镜520的第一移动载体和第二移动载体,第一移动载体和第二移动载体均具有第一载体侧壁211和第二载体侧壁212,该第一移动载体与该第二移动载体可被实施为分体式结构或者子母式结构,当被实施为分体式结构时,该第一移动载体和该第二移动载体可分别被驱动沿光轴方向移动,以实现变焦、对焦的功能;当被实施为子母式结构时,该第二移动载体可移动地设置于该第一移动载体上,该第一移动载体带动第二移动载体一起沿光轴方向移动,以实现变焦、对焦的功能。
进一步地,该载体200还包括位于入光侧和出光侧的阻尼件215,即该载体200沿光轴方向的前后两端均具有阻尼件215。具体地,如图13、图16与图17所示,该载体200沿光轴方向的前后两端均设置有用于安装阻尼件215的安装槽,阻尼件215上具有用于插入安装槽内的凸部,即阻尼件215与该安装槽之间为卡合结构,以实现阻尼件215在镜头载体210上的安装。当载体200沿光轴方向移动时,阻尼件215可以实现限位和缓冲的功能,避免载体200与外框体100之间发生撞击,也可以避免产生由于碰撞而发出的声响。其中,阻尼件215的凸部与该安装槽之间也可注入胶水以辅助安装。
更进一步地,由于阻尼件215具有弹性,阻尼件215的凸部的尺寸可略大于安装槽的尺寸,阻尼件215的凸部在插入安装槽内时具有一部分的挤压形变,以避免阻尼件215在撞击后脱落。
具体地,阻尼件215为弹性材料构件,具体可被实施为聚氨酯、硅树脂、环氧树脂或聚合物材料构件。
在一些具体实施例中,该载体200还包括与该预压致动组件300摩擦接触的摩擦板214,用于该预压致动组件300与该载体200的该摩擦板214之间发生摩擦以驱动载体200移动。其中,如图4、图6、图12与图23所示,该摩擦板214对应该预压致动组件300的驱动件310,在该载体200的第一载体侧壁211上沿平行于光轴的方向延伸而成。
具体地,该摩擦板214被装配于载体200与预压致动组件300之间,该摩擦板214被实施为在载体200的第一载体侧壁211的一体式结构,例如采用嵌入成型工艺,将该摩擦板214与该第一载体侧壁211一体成型;也可被实施为设于载体200的第一载体侧壁211上的分体式结构,例如通过黏着剂使该摩擦板214与载体200连接。应可以理解,该摩擦板214可以提高该载体200与该预压致动组件300之间的摩擦力。
其中,该摩擦板214被实施为氧化锆、氧化铝等金属氧化板等材质。
更具体地,参考图6与图23所示,该摩擦板214与该预压致动组件300的摩擦接触位置213位于该载体200的第一载体侧壁211。在该驱动件310驱动该载体200前,该预压件320向该预压致动组件300施加以抵接该载体200的该摩擦板214的预压力,以保证该预压致动组件300的摩擦头311与该摩擦板214摩擦连接。
此处需要说明的是,前文以及后文所提到的摩擦接触位置213,指代预压致动组件300或后文所涉及的第一支撑部410或第二支撑部420或第三支撑部430等组成该支撑组件400的元件同载体200或外框体100产生接触的位置,接触可以是面摩擦也可以是点摩擦,可能是滚动摩擦也可能是滑动摩擦,但由于其具有不确定性,因此在图中未予以明确显示。
如图5、图6与图21所示,在上述的潜望摄像模组中,载体200主要受到沿第三轴X方向(即外框体100或载体200的宽度方向)的预压力、沿第一轴Z方向(即外框体100或载体200的高度方向)的磁吸力、沿第二轴Y方向(即外框体100或载体200的长度方向,与光轴平行)的驱动力的作用。应可以理解,由于驱动件310的压电振子312是通过振动形变使摩擦头311发生运动的,而压电振子312振动形变时,摩擦头311与载体200抵接的角度随之变化,这导致摩擦头311与载体200之间产生的作用力并也非始终平行于光轴方向,其力的方向相对于载体200的侧壁所在的平面具有一定的倾斜,倾斜的力的作用可能导致载体200倾斜。
进一步地,预压件320为驱动件310提供一预压力,预压力的方向沿第一轴Z方向垂直于载体200的侧壁,但是由于压电振子312的振动形变,摩擦头311与载体200抵接的角度随之变化,导致预压力的方向并非始终垂直作用于载体200的侧壁,而是预压力的方向相对于载体200的侧壁所在的平面具有一定的倾斜。同时该预压致动组件300的压电振子312是通过振动形变带动该摩擦头311发生运动,该预压件320会因为该压电振子312的振动形变而产生形变,也会造成其产生的预压力方向相对于载体200侧壁所在平面具有一定倾斜,使得载体200有倾斜甚至倾覆的可能。
在本申请的具体示例中,该预压致动组件300沿平行于光轴方向延伸分布在该外框体100的第一侧壁110上,并由该预压致动组件300的预压件320沿着从该载体200的第一载体侧壁211朝向第二载体侧壁212的方向施加垂直于光轴方向的预压力,用于使得该载体200与该预压致动组件300始终保持摩擦接触,从而驱动该载体200沿光轴方向相对于该外框体100移动,实现对焦、变焦功能。
在进行对焦和变焦操作时,载体200的第一载体侧壁211会受到预压致动组件300施加的垂直于光轴方向的预压力,为了更好地承接来自预压致动组件300的预压力,优选该载体200的第一载体侧壁211沿光轴的长度不小于该载体200的第二载体侧壁212沿光轴的长度。
相对应的,该载体200的该摩擦板214的长度可设置得更长,以进一步延长该预压致动组件300的行程。
在一个实施例中,该载体200的第一载体侧壁211沿光轴的长度等于该载体200的第二载体侧壁212沿光轴的长度,以增加与该预压致动组件300异侧设置的支撑部的设置长度(例如沿光轴设置的两个滚珠之间的距离),从而增大不同支撑部对该载体200形成的支撑面面积,以进一步增强该载体200的移动稳定性和平行度。
具体来说,在进行对焦和变焦操作时,载体200的第一载体侧壁211会受到预压致动组件300施加的垂直于光轴方向的预压力。此外,在运动过程中,载体200还可能倾向于向外框体100的第二侧壁120方向偏移,以及在外框体100的底面上产生上下方向的偏移。为了防止这些偏移,确保载体200在整个对焦和变焦过程中始终沿光轴方向平稳移动,支撑组件400被精心设计并装配在载体200与外框体100之间,以提供必要的支撑和导向作用。
由于该预压致动组件300是在载体200的侧面驱动的,预压件320提供一垂直于载体200的第一载体侧壁211的预压力,因此支撑组件400中的一部分支撑件需要在载体200的侧面对载体200进行支撑,一方面可以避免载体200与外框体100之间产生面摩擦而造成摩擦力过大,另一方面也可以通过支撑件(例如滚珠)和直线槽的配置提高载体200移动的平行度。其中如果在预压力作用下,将支撑件都放到该预压致动组件300的对侧(即第二侧),那么就会有由于力臂过长而使得载体200的倾覆力矩较大,进而更容易使得载体200倾斜的问题。其中,在该预压致动组件300未被通电的状态下,该支撑件至该摩擦接触位置213的直线距离即为载体200的倾覆力臂。
具体地,在该驱动件310未被通电的状态下,驱动件310的摩擦头311到支撑件的直线距离为驱动力的力臂x,根据公式M=Fx,当x越大,即在该驱动件310未被通电的状态下,摩擦头311与支撑件的直线距离越远,则倾覆力矩M越大,当载体200被驱动沿光轴方向移动时,载体200越容易产生倾斜,进而增大载体200卡死的风险,无法继续移动。
另外,当支撑件被实施为滚珠或其他与载体200点摩擦接触但运动状态具有不确定性的支撑件时,以滚珠为例,滚珠在被装配于该载体200与该外框体100之间时,其运动状态具有不确定性,滚珠能够随意切换滚动或滑动的运动状态,因此滚珠可能在载体200运动过程中被卡死在其装配槽内,也会导致该载体200倾斜甚至倾覆。当支撑组件400被实施为多颗滚珠时,滚珠与两侧的外框体100以及载体200都是点接触,如果载体200发生倾斜,则支撑组件400的滚珠中的其中一个有可能无法同时于外框体100和载体200接触,有可能导致载体200与滚珠之间卡死、载体200与滚珠之间脱离等情况的产生,进而导致载体200无法继续移动。在此基础上,考虑到滚珠装配处可活动空间大小,该外框体100与该载体200的制造公差以及二者之间的组装公差也会导致载体200倾斜或卡死。
更具体地,该支撑组件400被实施为多个支撑件,其中至少一个该支撑件被装配于该外框体100的第一侧和该载体200的第一侧之间,至少另一个该支撑件被装配于该外框体100的第二侧与该载体200的第二侧之间,换言之,至少一个该支撑件被装配于设置有该预压致动组件300的该外框体100的内侧壁与相对的该载体200的外侧壁之间,至少另一个该支撑件被装配于不设置有该预压致动组件300的该外框体100另一内侧壁与相对的该载体200的另一外侧壁之间,即至少一个该支撑件被装配于该外框体100的第一侧壁110与该载体200的第一载体侧壁211之间,至少另一个该支撑件被装配于该外框体100的该第二侧壁120与该载体200的该第二载体侧壁212之间,以使该载体200在平行于光轴方向的左右两个侧壁和/或底面的左右两侧处均受到支撑件的支撑,从而确保该载体200始终沿光轴方向移动。在部分可选实施例中,且至少两个该支撑件于高度方向上(即沿着外框体100的厚度方向上)被装配在该预压致动组件300与该载体200的摩擦接触位置213的两侧,以使该载体200在光轴方向上运动时,降低该载体200在变焦、对焦过程中发生水平面上的以及高度方向上的偏移甚至卡死的情况。
在本申请的具体示例中,该支撑组件400包括第一支撑部410以及第二支撑部420,该第一支撑部410和该第二支撑部420均具有至少一支撑件,第一支撑部410被设置于该外框体100设置有该预压致动组件300的第一侧壁110,第二支撑部420被设置于该外框体100的与该第一侧壁110对应的第二侧壁120,如图6与图22所示,在预压力作用下,第一支撑部410被夹持于该外框体100的该第一侧壁110的底部与该载体200的该第一载体侧壁211的底部,第二支撑部420被夹持于该外框体100的该第二侧壁120的顶部与该载体200的该第二载体侧壁212的顶部,对该载体200起支撑作用。
优选地,该第一支撑部410与该第二支撑部420于高度方向上(即沿着外框体100的厚度方向上)被装配于该预压致动组件300与该载体200的接触位置213的上下两侧,且该第一支撑部410至该接触位置213沿着上述高度方向的距离与该第二支撑部420至该接触位置213沿着上述高度方向的距离相等或相近(差距不超过20%),以使该第一支撑部410与该第二支撑部420尽量沿高度方向相对于光轴对称设置,为载体200提供尽可能对称的支撑力,在不发生结构干涉的基础上,减小载体200产生倾覆的风险。
具体地,根据其力矩的计算公式M=Fx,其中M为倾覆力矩,F为预压力矢量,x即为预压力的力臂,即为在该预压致动组件300未被通电的状态下,该预压致动组件300与该载体200的摩擦接触位置213到该第二支撑部420的直线距离(该第一支撑部410与该摩擦接触位置213的直线距离趋近于零)。当预压力F值一定时,倾覆力矩M随力臂x的增大而增大。当x值越大,即该预压致动组件300与该载体200的接触位置213到该第二支撑部420的距离越远,则倾覆力矩M越大,该载体200沿光轴方向上运动时越容易产生倾斜,进而增大该载体200卡死的风险。因此可通过控制该第二支撑部420至接触位置213之间的直线距离来控制x值,从而控制倾覆力矩M。
相对应地,该外框体100的第一侧壁110和该载体200的第一载体侧壁211均具有至少两个与该第一支撑部410抵接的抵接面,该外框体100的第二侧壁120和该载体200的第二载体侧壁212均具有至少一个与第二支撑部420抵接的抵接面。如图8、图9、图24与图25所示,第一支撑部410或第二支撑部420的抵接面至少包括一垂直于预压力方向的竖直面,即为第一抵接面112和第二抵接面121,以为受预压力作用下的第一支撑部410或第二支撑部420提供抵接支撑。
在一些实施例中,当第一支撑部410和/或第二支撑部420被实施为由沿平行于光轴方向上依次分布的两个及以上的支撑件组成时,该外框体100上和该载体200上位于第一支撑部410和第二支撑部420的装配区域均具有与该支撑件一一对应的装配槽,每个装配槽具有至少两个相对设置的抵接面,如图8、图9、图24与图25所示,该装配槽被实施为具有两个竖直面和两个水平面,以使该支撑件从竖直方向和水平方向均可被抵接支撑,例如外框体100的第一侧壁110上的第一抵接面112和载体200的第一载体侧壁211上的第三抵接面2111均为竖直的抵接面,从水平两个方向上对第一支撑部410进行抵接支撑;外框体100与载体200上均在该第一支撑部410的上下两侧具有水平抵接面,从竖直两个方向上对第一支撑部410进行抵接支撑;外框体100的第二侧壁120上的第二抵接面121和载体200的第二载体侧壁212上的第四抵接面2121均为竖直的抵接面,从水平两个方向上对第二支撑部420进行抵接支撑;如图25所示,外框体100的第一侧壁110上的第一抵接面112与该第二支撑部420之间通过额外的结构实现相互抵接,该额外结构为金属件480,以进一步调整外框体100的第一侧壁110上的第一抵接面112与该第二支撑部420之间的制造公差;外框体100与载体200上均在该第二支撑部420的上下两侧具有水平抵接面,从竖直两个方向上对第二支撑部420进行抵接支撑。
为了减小载体200倾斜的风险,本申请将靠近该预压致动组件300一侧(即第一侧)的支撑部设置为紧配,即与该预压致动组件300同侧设置的该第一支撑部410为主支撑件;将远离该预压致动组件300一侧(即第二侧)的支撑部设置为松配,即与该预压致动组件300异侧设置的该第二支撑部420为辅助支撑件。如图8、图9、图24与图25所示,该第一支撑部410被紧装配于该外框体100的该第一侧壁110与该载体200的第一载体侧壁211之间,该第二支撑部420被松配于该外框体100的第二侧壁120(或该金属件480)与该载体200的第二载体侧壁212之间,即该第一支撑部410始终与第一抵接面112、第三抵接面2111以及位于第一支撑部410上下两侧的水平抵接面抵接,该第二支撑部420始终与第二抵接面121(或该金属件480的一侧壁)、第四抵接面2121以及位于第二支撑部420上侧的水平抵接面之间具有一定空隙。当该载体200沿光轴方向移动时,以该第一支撑部410为主要支撑部件,这样在该预压致动组件300未被通电的状态下,该第一支撑部410至上述接触位置213的直线距离小于该第二支撑部420在该外框体100的该第一侧壁110的投影至上述接触位置213的直线距离,由于该第一支撑部410被紧配,因此上述接触位置213至该第一支撑部410的直线距离即为倾覆力矩对应的力臂x,以减小x值从而降低倾覆力矩M,避免该载体200出现倾斜甚至卡死的问题。
其中,上述紧配和松配可被实施为通过组装过程中的公差来实现,例如第一支撑部410与外框体100、载体200的公差小于第二支撑部420与外框体100、载体200的公差,例如前者公差为0.01,后者公差为0.02。即第一抵接面112与第三抵接面2111的间距小于第二抵接面121与第四抵接面2121的间距,位于该第一支撑部410上下两侧的水平抵接面的间距小于位于该第二支撑部420上下两侧的水平抵接面的间距。当载体200未发生倾斜时,被紧配的第一支撑部410为载体200提供主要支撑,以确保载体200沿光轴运动的平行度;当载体200发生倾斜时,被松配的第二支撑部420处具有的间隙能够为载体200进行位置调整的空间,且倾斜至一定角度时,第二支撑部420同时抵接外框体100与载体200,并以此状态配合第一支撑部410,共同为载体200提供支撑,从而修正载体200的位置,避免载体200倾斜的角度影响载体200的移动,一定程度上减小了该载体200产生倾斜的可能性,有助于提高潜望摄像模组的成像质量。
在部分可选实施例中,第一支撑部410或第二支撑部420可被实施为滚珠或其他支持点状支撑的构件,第一支撑部410和/或第二支撑部420分别包括两个滚珠,且滚珠分别被装配于该载体200沿平行光轴方向的前后两端,如图12、图13、图28、图29与图30所示,第一支撑部410和第二支撑部420均被实施为两个滚珠,即为组成第一支撑部410的第一滚珠411和第二滚珠412以及组成第二支撑部420的第三滚珠421和第四滚珠422。在预压力作用下,滚珠被夹持于外框体100与载体200之间,以为载体200提供更平稳的支撑和移动引导。
在部分可选实施例中,第一支撑部410或第二支撑部420可被实施为导杆或其他面支撑的构件,该导杆沿平行光轴方向延伸并被装配于外框体100与载体200之间,以确保载体200移动的平行度和稳定度。如图14-图17,以及图30所示,第一支撑部410被实施为第一滚珠411和第二滚珠412,第二支撑部420被实施为顶部导杆423。
在一些具体示例中,如图6、图8、图9、图22与图24所示,当第一支撑部410和第二支撑部420被实施为两个滚珠时,外框体100的第一侧壁110的相应抵接面与载体200的第一载体侧壁211的相应抵接面分别向外框体100内和向载体200内凹陷,形成至少一对开口方向相对的L型导槽440,即第一抵接面112、第二抵接面121、第三抵接面2111或第四抵接面2121均可与相邻一水平抵接面连接,形成L型导槽440;如图6、图8、图9、图25、图31、图32与图33所示,该金属件480的一侧壁也可与相邻一水平抵接面连接形成L型导槽440。在预压力作用下,每对L型导槽440的四个内壁同时夹持于第一支撑部410的滚珠的外侧,即第一抵接面112、第三抵接面2111以及位于第一支撑部410的滚珠上下两侧的水平抵接面均抵接该第一支撑部410的滚珠,以实现第一支撑部410的紧配;该对L型导槽440的除开底面的其他三个内壁与第二支撑部420的滚珠之间均保持一定间隙,即第二抵接面121、第四抵接面2121以及位于第二支撑部420的滚珠上侧的水平抵接面均与该第一支撑部410的滚珠之间保持一定间隙,以实现第二支撑部420的松配,避免第一支撑部410或者第二支撑部420的滚珠松动或脱落。
在本申请的一个实施例中,与该预压致动组件300同侧的第一支撑部410的滚珠尺寸大于与该预压致动组件300异侧的第二支撑部420的滚珠尺寸。应可以理解,该第一支撑部410的滚珠位于第一侧的底部,该第二支撑部420的滚珠位于第二侧的顶部,这样的设置使得在潜望摄像模组跌落或受到冲击时,该第一支撑部410的滚珠因为要支撑整个载体200,被设置于该外框体100的该第一侧壁110底部与该载体200的第一载体侧壁211的底部之间,造成该第一支撑部410的滚珠受到的作用力更大,更容易产生凹坑。
进一步地,由于该第一支撑部410为紧配设置,即该第一支撑部410的滚珠的四侧均与L型导槽440抵接,而该第二支撑部420为松配,即该第二支撑部420的滚珠的至少一侧与L型导槽440存在间隙,以缓解该第二支撑部420的滚珠受到的冲击,因此在潜望摄像模组跌落或受到冲击时,该第一支撑部410的滚珠受到的作用力更大,更容易产生凹坑。
具体地,将该第一支撑部410的滚珠尺寸设计的更大,可以分散该第一支撑部410的滚珠受到冲击时的作用力,减小该第一支撑部410产生凹坑的程度。
在部分可选实施例中,该外框体100的第一侧壁110上设置有一金属支撑件,该金属支撑件位于该第二支撑部420的底部,并于其顶面向上支撑该第二支撑部420,为该第二支撑部420的滚珠提供支撑平面,以提升该第二支撑部420移动的流畅性,并避免滚珠受压后在导槽内产生凹坑或者在该外框体100上产生碎屑。
其中,如图6、图8、图9、图22、图24与图25所示,夹持于第二支撑部420的滚珠外侧的一对L型导槽440的间距大于夹持于第一支撑部410的滚珠外侧的一对L型导槽440的间距。在部分可选实施例中,夹持于第二支撑部420的滚珠外侧的一对L型导槽440的水平间距大于夹持于第一支撑部410的滚珠外侧的一对L型导槽440的水平间距,以实现第一支撑部410的紧配,以及第二支撑部420的松配。进一步地,如图6、图8、图9、图22、图24和图25所示,夹持于第二支撑部420的滚珠外侧的一对L型导槽440的水平间距和竖直间距均大于夹持于第一支撑部410的滚珠外侧的一对L型导槽440的水平间距和竖直间距,以实现第二支撑部420的松配,从而使倾斜状态下的载体200具有足够的调整空间以避免卡死,以确保滚珠在L型导槽440内的稳定移动。
具体地,组成同一支撑部的两个滚珠位于两对L型导槽440内,这两队L型导槽440沿平行于光轴方向设置但互不连通,即每个滚珠位于一对L型导槽440内,以避免两个滚珠之间产生干涉。
其中,L型导槽440沿光轴方向的长度大于滚珠的直径,以使得滚珠可以在L型导槽440内沿光轴方向移动。应可以理解为,L型导槽440沿光轴方向的长度越长,滚珠可以发生纯滚动的机会更大,纯滚动的摩擦系数更小,以使载体200受到的摩擦力更小,载体200沿光轴方向的移动更加平稳。
在一些具体示例中,容纳第一支撑部410的L型导槽440沿光轴方向的长度可以等于容纳第二支撑部420的L型导槽440沿光轴方向的长度,以保证载体200的长移动行程。
由于载体200是沿光轴方向上移动的,为了保证支撑组件400始终被夹持且不会脱落,如图6与图7所示,载体200与外框体100之间设置有磁吸组件600,使载体200在沿光轴方向移动的过程中受到朝向外框体100的磁吸力,以夹持支撑组件400,从而减小载体200沿光轴方向上移动的偏移量,并保持其移动的平行度。
在一些具体示例中,如图6、图7与图22所示,该磁吸组件600被实施为位于载体200的底部与外框体100的底部之间,该磁吸组件600包括磁吸磁石610和磁轭620,即该磁吸磁石610被设置于该载体200和该外框体100二者中的一个,该磁轭620被设置于该载体200和该外框体100二者中的另一个。优选地,该磁吸磁石610设置于该载体200的底面,该磁轭620设置于该外框体100上对应该磁吸磁石610的位置,该磁吸磁石610和该磁轭620均沿光轴方向延伸而成。
在一些具体实施例中,该磁吸组件600与该第一支撑部410对称设置于该载体200的底部,即至少一该磁吸磁石610与该第一支撑部410于宽度方向对称设置于该载体200的底部,如图34所示,该磁吸磁石610设置于该载体200底部远离该第一支撑部410的另一侧边,该磁轭620对应设置于该外框体100上不具有该预压致动组件300的侧壁底部。由于该第一支撑部410被紧配于该外框体100的第一侧与该载体200的第一侧,将该磁吸组件600在该载体200的底部于宽度方向上更接近该外框体100的第二侧和该载体200的第二侧,并对该载体200产生向下的磁吸力,使得该载体200的底部于宽度方向上的对称两侧受到向下的作用力,以保证该载体200在该外框体100上的稳定性。
该磁吸组件600包括至少一磁吸磁石610和磁轭620,在部分可选实施例中,该磁吸磁石610的数量至少为两个,至少两个该磁吸磁石610对称分布于该载体200底部的沿宽度方向的两侧底面,并沿平行光轴方向延伸而成,该磁轭620被设置于该外框体100上对应该磁吸磁石610的位置,即该磁吸磁石610在该外框体100上的投影上,并沿平行光轴方向延伸而成。如图6、图7、图23与图27所示的两组磁吸磁石610与磁轭620与载体200的底部两侧产生磁吸作用,两组磁吸磁石610在该载体200的底部对称设置,使载体200受到对称的垂直于光轴方向向下的磁吸力的作用,以进一步减小载体200在移动时的偏移量,保持其移动的平行度。在部分可选实施例中,该磁吸组件600还包括设置于载体200的一侧壁或两侧壁处的磁吸磁石610以及对应位置的外框体100内侧壁上的磁轭620,用于产生第三轴X方向上的磁吸力,以保证载体200的运动平行度。
在一些具体实施例中,该载体200的底面沿第三方向X上的一侧或者对称两侧设置有至少一该磁吸磁石610,如图12、图13、图15、图16、图28、图29与图30所示,该载体200的底面两侧各设有一该磁吸磁石610,具体地,该磁吸磁石610的长度不小于该载体200的长度(沿光轴方向)的一半。
在部分实施例中,该载体200的底面两侧各设有两个该磁吸磁石610,位于同一侧的两个该磁吸磁石610沿光轴方向分布,每个该磁吸磁石610的长度不小于该载体200的长度(沿光轴方向)的三分之一,以保证该载体200在该外框体100的移动稳定性。
在一些具体实施例中,该磁轭620设置于该磁吸磁石610在该外框体100的投影处,并沿光轴方向延伸而成,其中,该磁轭620可以通过粘接、卡接、嵌套、焊接或者紧固件连接等方式固定于该外框体100上。具体地,为了保证该载体200在移动时始终受到向下的磁吸力,该磁轭620沿光轴方向的长度不小于该载体200的移动行程。
优选地,该磁轭620的长度不小于该载体200沿光轴方向的长度的一半与该载体200的移动行程之和,避免该载体200移动至在该磁轭620一端时,因该磁吸磁石610的设置位置靠前或靠后导致该载体200受到的磁吸力较小,从而造成该载体200发生偏移。
在部分可选实施例中,当该载体200被实施为沿光轴依次设置的两个该载体200时,两个该载体200对应的该磁轭620位于同一平行于光轴的方向上或者在第三方向X上位于不同的位置并均沿光轴方向延伸而成。
具体地,当两个该载体200对应的该磁轭620位于同一平行于光轴的方向上时,该磁轭620可被实施为一个整体式该磁轭620或两个分别对应两个该载体200的移动行程的分段式磁轭620,以覆盖两个该载体200的移动行程。
在一些具体实施例中,该磁轭620包括平面段621和边缘段623,该平面段621覆盖该磁吸磁石610在该外框体100的投影以及该载体200的移动行程,用于与该载体200上的该磁吸磁石610之间产生磁吸力,该边缘段623连接该平面段621与该外框体100。
在部分可选实施例中,该磁吸组件600被实施为一组该磁吸组件600且与该第一支撑部410于第三方向X上对称设置于该载体200底部的两侧,该磁吸磁石610设置于该载体200底部远离该第一支撑部410的另一侧边,该磁轭620可被实施为于第三方向X上延伸至该第一支撑部410,或延伸至覆盖该载体200的宽度,或延伸至仅覆盖该磁吸磁石610的投影处,即该磁轭620的该平面段621覆盖该磁吸磁石610的投影处,该磁轭620的该边缘段623可被实施为沿第三方向X上从该平面段621的一侧或两侧延伸至该第一支撑部410,或延伸至覆盖该载体200的宽度,或者延伸至仅覆盖该载体200的底面一侧。
具体地,该磁吸磁石610在第三方向X上的宽度不小于该载体200宽度的四分之一,以保证该载体200在底部的两侧受到相近或相同的向下的作用力,从而避免该载体200发生偏移。
在部分可选实施例中,该磁轭620还包括位于该平面段621和边缘段623之间的弯折段622,如图22与图28所示,该弯折段622从该平面段621和该边缘段623的相对侧边向上凸起形成一支撑面,该支撑面于顶部向上支撑该第一支撑部410,此时该平面段621于宽度方向上覆盖该磁吸磁石610在该外框体100上的投影,并于一侧延伸至该第一支撑部410。
具体地,该平面段621沿第三方向X覆盖该磁吸磁石610在该外框体100上的投影,并于两侧分别连接一该边缘段623和一该弯折段622,该弯折段622于另一侧连接另一该边缘段623,以覆盖该载体200的底面,从而使该载体200受到的磁吸力更稳定。
进一步的,该平面段621包括投影区6211和连接区6212,如图28所示,该投影区6211仅覆盖该磁吸磁石610的投影,该连接区6212连接该投影区6211与该磁轭620的其他段和/或连接相邻两该投影区6211。
具体地,当磁吸磁石610仅位于该载体200底部沿第三方向X远离该第一支撑部410的一侧时,该平面段621的该投影区6211沿第三方向X仅覆盖该磁吸磁石610在该外框体100上的投影,该平面段621的该连接区6212连接一该边缘段623和一该弯折段622;当磁吸磁石610对称设置于该载体200底部沿第三方向X的两侧时,该平面段621的该投影区6211覆盖沿第三方向X仅覆盖该磁吸磁石610在该外框体100上的投影,该平面段621的该连接区6212连接该投影区6211与一该边缘段623和一该弯折段622,并连接相邻两该投影区6211。
优选地,该平面段621的该连接区6212上具有镂空孔,以进一步减小该磁轭620的质量。
在本申请的一些实施例中,该磁轭620被实施为能够与该磁吸磁石610相互吸引的金属材质料带,即可以批量制造,该磁轭620制造成型后剪切成所需面积,以提高制造效率。而且,该磁轭620具有较大的面积,金属压料面积越大,越有利于保证外框体100上对应该载体200的区域的平面度。
在本申请的具体示例中,该支撑组件400还包括被装配于外框体100与载体200之间的第三支撑部430,在该磁吸组件600的磁吸作用下,该第三支撑部430被夹持于外框体100的底部与载体200的底部之间,如图6、图8、图22与图24所示,受磁吸力作用,第一支撑部410与第三支撑部430被夹持于外框体100的底部与载体200的底部之间,并分别位于该载体200的底部两侧。第三支撑部430与第一支撑部410尽量沿载体200和外框体100的宽度方向相对于光轴对称设置(以光轴方向为载体200和外框体100的长度方向),以为载体200提供尽可能对称的支撑力,减小载体200产生倾斜的风险。
相对应地,该外框体100的第二侧壁120和该载体200的第二载体侧壁212均具有至少一个与第三支撑部430抵接的抵接面。如图6与图22所示,第三支撑部430的抵接面至少包括两个垂直于磁吸力方向的水平面,以为受磁吸力作用下的第三支撑部430的上下两侧提供抵接支撑。
具体地,第三支撑部430被夹持于外框体100的第二侧壁120的底部与载体200的第二载体侧壁212的底部之间。当载体200在受到预压力作用并沿光轴移动的过程中,载体200以被紧配的第一支撑部410为主要支撑,以被松配的第二支撑部420为辅助支撑,并在载体200底面两侧的两组磁吸磁石610和磁轭620之间的磁吸力作用下保持沿光轴方向上的移动。
其中,为了减小载体200在预压力作用下向该外框体100的第二侧壁120倾斜的概率,第三支撑部430在平行于预压力方向上具有一定的调整间隙,第三支撑部430在磁吸力方向不具有调整间隙,以使第三支撑部430的滚珠在磁吸力作用下始终保持被夹持,即便其对应的一对装配槽可能会在预压力作用下发生水平错位,该第三支撑部430的滚珠仍能在该对装配槽内稳定运动,上述调整空隙可被实施为通过组装过程中的公差来实现,例如第三支撑部430的滚珠的该对装配槽的左右间距大于其上下间距。
如图6与图22所示,第一支撑部410与第三支撑部430分别位于载体200的第一载体侧壁211的底部和第二载体侧壁212的底部,第二支撑部420与第三支撑部430分别位于载体200的第二载体侧壁212的顶部和底部,在载体200移动的过程中,第一支撑部410与第二支撑部420在预压力的作用下被夹持于载体200与外框体100之间,为载体200提供水平方向上的支撑,第一支撑部410与第三支撑部430在磁吸力的作用下被夹持于载体200与外框体100之间,为载体200提供竖直方向上的支撑。
更具体地,第一支撑部410在预压力和磁吸力的作用下对载体200都有支撑作用,则第一支撑部410需同时受到平行于预压力方向上和平行于磁吸力方向上的限制,如图6、图8、图9、图10与图22所示,第一支撑部410需同时受到垂直于光轴的水平方向和竖直方向上的限制。第二支撑部420在预压力作用下起支撑作用,则第二支撑部420需受到平行于预压力方向上的限制,在平行于磁吸力方向上可以具有一定移动空间,即第二支撑部420需受到垂直于光轴的水平方向上的限制,在垂直于光轴的竖直方向上可以具有一定移动空间。第三支撑部430在磁吸力作用下起支撑作用,则第三支撑部430需受到平行于磁吸力方向上的限制,在平行于预压力方向上可以具有一定移动空间,即第三支撑部430需受到垂直于光轴的竖直方向上的限制,在垂直于光轴的水平方向上可以具有一定移动空间。
相对应的,当该第一支撑部410与该第三支撑部430对称设置于该载体200的底部时,该磁吸磁石610被实施为对称设置于该第一支撑部410与该第三支撑部430的两个磁吸磁石610,该磁轭620从两侧至中心依次分布有该边缘段623、该弯折段622以及该平面段621,该平面段621覆盖两个该磁吸磁石610在该外框体100上的投影,该边缘段623和该弯折段622于宽度方向对称分布于该平面段621的两侧,两个该弯折段622分别位于该第一支撑部410与该第三支撑部430的底部,并于顶面向上支撑该第一支撑部410与该第三支撑部430。
在部分可选实施例中,第三支撑部430可被实施为两个滚珠,两个滚珠分别被装配于该载体200沿平行光轴方向上的前后两端。在磁吸力作用下,滚珠被夹持于外框体100与载体200之间,以为载体200提供更平稳的支撑和移动引导。如图12、图15、图16与图30所示,该第三支撑部430被实施为第五滚珠431和第六滚珠432。
在部分可选实施例中,第三支撑部430可被实施为导杆,该导杆的结构与被实施为第二支撑部420的顶部导杆423相同,并沿平行光轴方向延伸并被装配于外框体100与载体200之间,以确保载体200移动的平行度和稳定度。
在一些具体示例中,当第三支撑部430被实施为两个滚珠时,外框体100的第二侧壁120的相应抵接面向外框体100内凹陷,载体200的第二载体侧壁212的相应抵接面向载体200内凹陷,形成至少一对开口方向相对的V型导槽或进一步包括一平面底面的三边导槽,即斜侧壁导向槽460,在磁吸力作用下,斜侧壁导向槽460内壁中的顶壁和底壁同时夹持于第三支撑部430的滚珠的外侧,避免第三支撑部430的滚珠松动或脱落。
如图10所示,每对斜侧壁导向槽460内壁中的顶壁和底壁从上下两侧夹持该第三支撑部430的滚珠,以确保滚珠在斜侧壁导向槽460内被夹持并稳定移动,斜侧壁导向槽460的水平宽度大于其上下高度或其深度,第三支撑部430在平行于预压力方向上可以具有一定移动空间,从而使倾斜状态下的载体200具有足够的调整空间以避免卡死。如图22与图26所示,该载体200的底部设有一辅助金属件,该辅助金属件的底面与该磁轭620的弯折段622的顶面从上下两侧夹持该第三支撑部430的滚珠,代替每对斜侧壁导向槽460实现对该第三支撑部430的滚珠的装配。
具体地,组成同一支撑部的两个滚珠位于两对斜侧壁导向槽460内,这两队斜侧壁导向槽460沿平行于光轴方向设置但互不连通,即每个滚珠位于一对斜侧壁导向槽460内,以避免两个滚珠之间产生干涉。
在一些具体示例中,当第三支撑部430被实施为导杆时,该导杆结构与被实施为第二支撑部420的顶部导杆423相同,外框体100的第二侧壁120的相应抵接面与载体200的第二载体侧壁212的相应抵接面分别向下或者向上凹陷,形成开口向上或开口向下的U型导槽450,以装配该导杆。其中该U型导槽450的开口处设有用于抵压该导杆的抵压块,以避免该导杆在该U型导槽450内翘起。
在本申请的具体示例中,在磁吸组件600的磁吸作用下,该第一支撑部410与该第三支撑部430分别被夹持于载体200底部的两侧,即磁吸组件600在一定程度上对载体200于第二载体侧壁212的翘起趋势有抑制作用。在该基础上,由前述可知,驱动件310的摩擦头311到支撑组件400的倾覆力臂越小,倾覆力矩越小,则载体200产生倾覆的风险会越低。
因此,本申请提供了另一种实施例,将第二支撑部420也同第一支撑部410一样设置于第一侧,靠近驱动件310设置,即第二支撑部420被装配于该外框体100的该第一侧壁110的顶部与该载体200的该第一载体侧壁211的顶部,以使该第一支撑部410与该第二支撑部420于同一侧上的不同高度处对该载体200提供对应预压力的支撑,可以消除较远的力臂,进一步降低载体200倾斜的风险。在该实施例中,仍以第一支撑部410为主支撑结构,第二支撑部420为辅支撑结构,即第一支撑部410为紧配,第二支撑部420为松配,保证载体200始终有较小的倾覆力矩,以减小载体200出现倾斜的风险。
其中,第一支撑部410、第二支撑部420和驱动件310同侧设置,而载体200的第一载体侧壁211具有较长的尺寸,因此同位于载体200的第一载体侧壁211的第一支撑部410与第二支撑部420的支撑面并没有较大的差异。也就是,该第一支撑部410和该第二支撑部420在平行于光轴方向上均具有两个端侧,第一支撑部410的两端侧间距与第二支撑部420的两端侧间距是近似的,当第一支撑部410被实施为滚珠,第二支撑部420被实施为顶部导杆423或滚珠,该第一支撑部410的两个端侧即为两个滚珠,该第二支撑部420的两个端侧即为顶部导杆423的两端或两个滚珠,第一支撑部410的滚珠间距与第二支撑部420的滚珠间距或顶部导杆423的有效长度是近似的。这样,摩擦头311与载体200的摩擦接触位置213不需要偏心,即在该预压致动组件300未被通电的状态下,该摩擦接触位置213至第一支撑部410的直线距离和该摩擦接触位置213至第二支撑部420的直线距离是相等的,这样有助于提高载体200的稳定性,且当载体200被驱动沿光轴方向移动时,摩擦头311对载体200驱动的作用点不容易移动出侧面支撑面的范围。
在该实施例中,第二支撑部420可以被实施为滚珠或顶部导杆423。当第二支撑部420被实施为滚珠时,载体200与外框体100分别设置有L型导槽440,以将第二支撑部420的滚珠夹持于L型导槽440之间,如图9所示,载体200的L型导槽440的开口沿预压力方向,外框体100的L型导槽440开口朝向相反的方向,第二支撑部420的滚珠在该对L型导槽440内具有垂直于预压力方向上的调整空间,而第二支撑部420的滚珠受预压力的作用,沿平行于预压力的左右方向上被夹持于该对L型导槽440内,因此当没有施加预压力时,载体200可能会有左右晃动,该第二支撑部420的滚珠会有脱落的风险。
为了避免该第二支撑部420脱落,第二支撑部420被实施为顶部导杆423,作为第一支撑部410的辅助支撑。外框体100的第一侧壁110的相应抵接面与载体200的第一载体侧壁211的相应抵接面分别向下或者向上凹陷,形成开口向上或开口向下的U型导槽450,以装配顶部导杆423。如图14-图17,以及图30所示,载体200的第一载体侧壁211的顶面设置有U型导槽450,第二支撑部420被实施为顶部导杆423,顶部导杆423安置于U型导槽450内,顶部导杆423的两端固定于外框体100上,这样,即使没有预压力施加,载体200也不好出现晃动,顶部导杆423也不会出现脱落。为了能够使得顶部导杆423与载体200抵接,减小顶部导杆423与载体200之间由于组装产生的间隙,该U型导槽450的顶部设置用于压住载体200顶部的抵压配件470,以避免顶部导杆423在该U型导槽450内翘起。在本申请的一个实施例中,该抵压配件470自上向下对应载体200的U型导槽450安装,并具有一凸起以与顶部导杆423抵接,该抵压配件470固定于外框体100上。在部分实施例中,U型导槽450也可被应用于第一支撑部410或第二支撑部420被实施为滚珠的情况。
如图6所示,将第一支撑部410与预压致动组件300同侧设置,即驱动件310在设置位置上更靠近滚珠间距离更大的第一支撑部410,这样,一方面,空间利用更加合理,这是由于驱动件310、预压件320均是沿光轴方向延伸,与其对应的位于第一侧的载体200的侧壁也需要沿光轴方向延伸,也就是,载体200的第一载体侧壁211需要具有一定的长度,而第一支撑部410被设置于载体200的第一载体侧壁211的底面,也可以有更长的空间设置第一支撑部410的两颗滚珠。与之相对的,载体200的第二载体侧壁212无需设置驱动件310,其可以设置更短的长度,以供第二支撑部420和第三支撑部430安置。这样不仅可以使得潜望摄像模组整体的结构更加紧凑,而且有利于减小潜望摄像模组的尺寸。另一方面,由于潜望摄像模组中的光学对焦行程较大,这种设计也有助于在长行程中滚珠始终对载体200进行支撑。
由于该预压致动组件300在实际工作时对该摩擦板214施压施力,该摩擦板214的长度越长,其对应的驱动件310的驱动行程也就越长,相应的载体200的第一载体侧壁211的长度也就越长。优选地,载体200的第二载体侧壁212的长度小于第一载体侧壁211的长度,载体200的第二载体侧壁212上仅有滚珠,滚珠之间的距离可以进行调整,而且只要第一支撑部410的两颗滚珠之间的距离足够大,即可满足了整体结构平衡。因此,载体200的第二载体侧壁212不需要拉长至与第一载体侧壁211具有一样的长度。
更具体地,当第一支撑部410和第二支撑部420被实施为两个滚珠时,第一支撑部410的两个滚珠之间的滚珠间距不小于第二支撑部420的滚珠间距,而沿光轴方向上两颗滚珠之间的距离越大,对载体200的支撑越平稳。
在部分可选实施例中,如图12、图13、图28与图30所示,第一支撑部410的两个滚珠之间的滚珠间距大于第二支撑部420的两个滚珠之间的滚珠间距,部分优选实施例为1.5倍以上。进一步地,在部分可选实施例中,夹持该第一支撑部410的两个L型导槽440的间距为夹持该第二支撑部420的两个L型导槽440或U型导槽450间距1.5倍以上,其中上述滚珠间距和所有导槽间距均为沿平行光轴方向上的间距。当第一支撑部410与驱动件310同侧设置于第一侧,第二支撑部420设置于第二侧时,第一支撑部410设置于载体200的第一载体侧壁211的底部,第二支撑部420位于载体200的第二载体侧壁212的顶部,该第一支撑部410与该第二支撑部420沿高度方向相对于光轴对称设置,而驱动件310的摩擦头311与载体200的摩擦接触位置213位于载体200的第一载体侧壁211上,更接近第一支撑部410,由于第一支撑部410的两颗滚珠之间的滚珠间距大,第一支撑部410为载体200提供的支撑范围更大,当载体200被驱动沿光轴方向移动时,摩擦头311与载体200的摩擦接触位置213更不容易移动出第一支撑部410所提供的支撑范围,载体200受到更稳定的支撑,同时载体200于高度方向上均受到支撑,有效避免载体200发生倾斜或倾覆;当第一支撑部410、第二支撑部420和驱动件310同侧设置时,第一支撑部410与第二支撑部420的四个滚珠之间形成位于载体200的第一载体侧壁211上的侧面支撑面,比起第一支撑部410与第二支撑部420的滚珠间距相同的部分实施例,第一支撑部410的滚珠间距越大,该侧面支撑面的覆盖范围越大,且沿平行于光轴的方向具有更大的覆盖值区间,以使驱动件310的摩擦头311在载体200的第一载体侧壁211上的摩擦接触点(即接触位置213)始终位于该侧面支撑面内,避免接触位置213在载体200的移动过程中移出该侧面支撑面,造成对载体200的预压方向上的支撑不到位,从而导致载体200发生倾斜。
进一步地,在该驱动件310未被通电的状态下,驱动件310的摩擦头311与载体200之间的接触位置213靠近第一支撑部410设置,即在该驱动件310未被通电的状态下,该摩擦接触位置213至第二支撑部420的直线距离大于该摩擦接触位置213至第一支撑部410的直线距离,换言之,驱动件310的摩擦头311的高度尽可能靠近第一支撑部410设置。由于第一支撑部410的滚珠间距大于第二支撑部420的滚珠间距,摩擦头311的高度越靠近第一支撑部410,侧面支撑面所覆盖的范围越广,摩擦头311对载体200的作用点越不容易移出该侧面支撑面,对载体200的支撑效果越好,越能使摩擦头311对载体200的作用点始终保持在滚珠支撑的范围内,尽可能地避免载体200出现倾斜。
更具体地,当载体200沿光轴方向移动时,磁吸磁石610也会随着载体200的移动而移动,相对应的磁吸力在载体200上的作用点也会移动,而该第一支撑部410和该第三支撑部430在平行于光轴方向上均具有两个端侧,该第一支撑部410的两端侧间距不小于该第三支撑部430的两端侧间距是近似的,当第一支撑部410和第三支撑部430被实施为两个滚珠时,该第一支撑部410和该第三支撑部430的两个端侧都为两个滚珠,第一支撑部410的两个滚珠的两个滚珠之间的滚珠间距不小于第三支撑部430的滚珠间距。若第一支撑部410的两颗滚珠之间的距离与第三支撑部430的两颗滚珠之间的距离相等,则第一支撑部410与第三支撑部430会形成一近似矩形的滚珠支撑面,当载体200被驱动沿光轴方向移动时,磁吸力在载体200上的作用点有会移动出滚珠支撑面的风险,若磁吸力的作用点移出了滚珠支撑面的范围,则会产生力矩,容易造成载体200倾斜或翻转,(磁吸力作用点至宽度方向上两颗滚珠的连线的直线距离为力臂),因此要保持磁吸力的作用点始终位于滚珠支撑面的范围内。
优选地,如图12、图15、图28与图30所示,第一支撑部410的两个滚珠之间的滚珠间距大于第三支撑部430的两个滚珠之间的滚珠间距,部分优选实施例中为1.5倍以上。进一步地,在部分可选实施例中,夹持第一支撑部410的两个L型导槽440的间距为夹持第三支撑部430的两个斜侧壁导向槽460的间距1.5倍以上,其中上述滚珠间距和所有导槽间距均为沿平行光轴方向上的间距。第一支撑部410与第三支撑部430的四个滚珠之间形成位于载体200底面的磁吸支撑面,第一支撑部410的滚珠间距大于第三支撑部430的滚珠间距,一方面增大了磁吸支撑面的面积,以使磁吸组件600对载体200底面的磁吸附作用始终位于该磁吸支撑面内,使得载体200被支撑得更加平稳,避免载体200在移动或跌落过程中脱离或歪斜;另一方面,磁吸磁石610与磁轭620之间产生的磁吸力将第一支撑部410和第三支撑部430夹持于载体200的底面与外框体100的中部顶面之间,使载体200始终得到支撑,降低对载体200的磁吸作用以及相应支撑失效的风险,减少因此导致的载体200发生倾斜的概率。更进一步地,将磁吸组件600设置于靠近第一支撑部410的载体200的底部,以保证磁吸力作用点始终位于该磁吸支撑面内,避免载体200发生倾斜。
进一步地,将磁吸磁石610靠近第一支撑部410设置,可以更大程度上避免磁吸力作用点移出磁吸支撑面的范围,更大程度上避免了载体200产生倾斜。
在一些优选实施例中,在该驱动件310未被通电的状态下,当第二支撑部420设置于第二侧时,第二支撑部420至驱动件310的直线距离与第三支撑部430至驱动件310的直线距离不相等,即第二支撑部420和第三支撑部430不位于同一高度方向上,以便为载体200提供更稳定的支撑。
在本申请的一个实施例中,该磁吸磁石610的数量为一个,该载体200的底部设置有用于容置该磁吸磁石610的凹槽,该磁吸磁石610被设置于该载体200底面的该凹槽内,且该磁吸磁石610的至少一部分裸露,以与位于该外框体100的该磁轭620相对而产生磁吸力。
其中,一个该磁吸磁石610靠近该第一支撑部410设置,如图35所示,该磁吸磁石610至该第一支撑部410的距离小于该磁吸磁石610至该第二支撑部420的距离,在该第一支撑部410的两个滚珠和该第二支撑部420的两个滚珠之间形成的滚珠支撑部上,该磁吸磁石610的位置更靠近滚珠间距更大的该第一支撑部410,即因该第一支撑部410的滚珠间距更大,该第一支撑部410与该第二支撑部420形成近似直角梯形的滚珠支撑面,使得靠近该第一支撑部410的滚珠的支持面积更大,当该载体200被驱动沿光轴方向移动时,磁吸力在该载体200上的作用点可以位于更大尺寸的滚珠支撑面中,更大程度上避免磁吸力作用点移出滚珠支撑面的范围,更大程度上避免了该载体200产生倾斜。
在本申请的另一个实施例中,该磁吸磁石610的数量为两个,两个该磁吸磁石610在该载体200的底部相对于光轴对称设置,使得磁吸力的作用点可以位于两个该磁吸磁石610连线的中点。在该第一支撑部410和该第三支撑部430可以形成的近似直角梯形的滚珠支撑面内,磁吸力可以朝向靠近或远离直角梯形的斜边移动,磁吸力在该载体200上的作用点可以有更大的移动空间而不会超出滚珠支撑面的范围,避免了该载体200产生倾斜。
在本申请的一些实施例中,该第一支撑部410、该第二支撑部420以及该第三支撑部430均被实施为沿光轴方向设置的两个滚珠。
在一个实施例中,该第三支撑部430的滚珠尺寸等于该第一支撑部410的滚珠尺寸,由于该第一支撑部410和该第三支撑部430在该载体200的底部相对设置,尺寸相同的滚珠可以使得该载体200于底部得到更加平稳的支持,进一步减小载体200倾斜情况的产生。
在本申请的一个实施例中,该第二支撑部420的滚珠尺寸小于该第一支撑部410和该第三支撑部430的滚珠尺寸。应可以理解,该第一支撑部410和该第三支撑部430的滚珠位于该载体200的底部,该第二支撑部420的滚珠位于该载体200的顶部,这样的设置使得在潜望摄像模组跌落或受到冲击时,该第一支撑部410和该第三支撑部430的滚珠因为要支撑整个载体200,分别被设置于该外框体100的该第一侧壁110底部与该载体200的第一载体侧壁211的底部之间,以及该外框体100的该第二侧壁120底部与该载体200的第二载体侧壁212的底部之间,造成该第一支撑部410和该第三支撑部430的滚珠受到的作用力更大,更容易产生凹坑。
进一步地,由于该第一支撑部410和该第三支撑部430在磁吸力的作用方向为紧配设置,即该第一支撑部410和该第三支撑部430的滚珠的上下两侧与滚珠槽抵接(第一支撑部410的滚珠抵接L型导槽440,第三支撑部430的滚珠抵接斜侧壁导向槽460),而该第二支撑部420为松配,即该第二支撑部420的滚珠的至少一侧与滚珠槽(即L型导槽440)存在间隙,以缓解该第二支撑部420的滚珠受到的冲击,因此在潜望摄像模组跌落或受到冲击时,第一支撑部410和第三支撑部430的滚珠受到的作用力更大,更容易产生凹坑。
具体地,将该第一支撑部410和该第三支撑部430的滚珠尺寸设计的更大,可以分散该第一支撑部410和该第三支撑部430的滚珠受到冲击时的作用力,减小该第一支撑部410和该第三支撑部430的产生凹坑的程度。
在本申请的一个实施例中,该第一支撑部410的滚珠直径为1mm,该第二支撑部420的滚珠直径为0.8mm。如图6、图8、图12、图13、图22与图34可知,容置该第二支撑部420的滚珠的L型导槽440是由该载体200的顶部向内和向下凹陷形成的,该第二支撑部420的滚珠直径较小,可以减小第二侧的该载体200的侧壁厚度,即该载体200的第一载体侧壁211的厚度,进而实现减小潜望摄像模组的宽度尺寸。
在其他实施例中,该第二支撑部420的滚珠尺寸也可以等于该第一支撑部410的滚珠尺寸。
因此,在本申请中,将第一支撑部410和第三支撑部430的滚珠尺寸设计的更大,可以分散第一支撑部410和第三支撑部430受到冲击时的作用力,减小第一支撑部410和第三支撑部430产生凹坑的情况。
在本申请的具体示例中,预压致动组件300包括被设置于该外框体100的第一侧壁110上的驱动件310和预压件320,驱动件310位于预压件320与载体200的第一载体侧壁211之间,预压件320对驱动件310施加垂直于载体200的第一载体侧壁211的预压力,以使抵接载体200的第一载体侧壁211,以实现预压致动组件300对载体200的侧面驱动。为了实时感测到该载体200的实际运动位置,更好地配合驱动件310对载体200的驱动,潜望摄像模组还包括位置感测组件800,该位置感测组件800包括位置感测元件810和位置感测磁石820,如图6与图13所示,该位置感测元件810设置于该外框体100的第二侧壁120上,并与该预压致动组件300相对设置,该位置感测磁石820设置于该载体200的第二载体侧壁212上对应该位置感测元件810的位置上,如图6、图13、图16、图17、图29与图30所示,该载体200的第二载体侧壁212上设置有用于安装该位置感测磁石820的感测磁石凹槽216。
在一些具体实施例中,该驱动件310包括压电振子312以及被设置于该压电振子312朝向载体200的一侧的摩擦头311,如图6、图11、图13与图37所示,摩擦头311与预压件320分别位于该压电振子312的两侧,该摩擦头311通过预压件320抵接于载体200的第一载体侧壁211,该压电振子312通过自身振动或压电致动使该摩擦头311与载体200之间摩擦连接,并驱动载体200移动。
具体地,该压电振子312是具有逆压电效应并且根据极化方向和电场方向收缩或膨胀的基板,可以通过在单晶、多晶陶瓷、聚合物等在厚度方向上使基板极化来使用。逆压电效应是指在电介质的极化方向施加电场时,电介质在产生电势差时所发生的机械变形。压电振子312具有超声波震荡的作用,即在特定设置的电极层上实现偏摆往复运动或椭圆运动,从而能够带动摩擦头311进行偏摆往复运动或椭圆运动,进而通过摩擦头311与载体200外侧壁之间的摩擦,实现驱动载体200相对外框体100运动。
在一些具体示例中,该压电振子312在沿平行于光轴延伸方向被设置于该外框体100的第一侧壁110上,该摩擦头311凸出设置于该压电振子312朝向载体200的一侧,该摩擦头311的数量可被实施为一个,也可被实施为两个及以上,在压电振子312的振动或压电致动作用下,摩擦头311与载体200的第一载体侧壁211发生接触摩擦,并驱动载体200移动。
优选地,该摩擦头311被实施为沿压电振子312延伸方向或沿光轴延伸方向间隔设置的两个摩擦头311,两个摩擦头311可以相互配合,以驱动载体200的长行程移动。进一步地,摩擦头311在压电振子312上的设置位置可配合压电振子312的模态,压电振子312在其厚度方向上以一波峰一波谷的模态弯曲振动或压电致动,在波峰波谷对应位置设置摩擦头311,增加摩擦头311与载体200之间的摩擦,以提升对载体200的驱动效果。
在一些具体示例中,该摩擦头311与该压电振子312可被实施为一体式结构,也可被实施为可拆卸结构,该摩擦头311可通过粘接、卡接、嵌套、焊接或者紧固件连接等方式固定于该压电振子312上。更具体地,该摩擦头311与该压电振子312之间的连接为面连接,以保证连接强度,且摩擦头311能随压电振子312的形变而产生运动。
在一些具体示例中,摩擦头311采用耐磨材料制成,例如可以采用各种高硬度耐磨陶瓷材料制成,如氧化铝、氧化锆、碳化硅陶瓷,或者高耐磨金属材料、碳纤维材料,或者陶瓷、金属颗粒与高分子的复合材料等,以便提高摩擦头311的耐磨性,利于提高载体200与摩擦头311之间的摩擦力,有利于提升驱动效率,并且由于耐磨,利于延长摩擦头311的使用寿命。
在一些具体示例中,为使预压致动组件300的驱动性能提升,压电振子312可以由压电陶瓷材料或压电单晶材料制成,压电振子312可以是单层陶瓷体或单层单晶体,也可以是多层陶瓷体或多层单晶体,例如,锆钛酸铅(PZT)基压电陶瓷、铌酸钾钠(KNN)基压电陶瓷、钛酸钡(BT)基压电陶瓷、铌镁酸铅-铌铟酸铅(PMN-PT)基压电单晶等。
在本申请的具体示例中,预压件320对驱动件310施加了朝向载体200的预压力,以使驱动件310的摩擦头311始终与载体200的第一载体侧壁211之间保持摩擦接触。由于压电振子312在驱动时存在机械变形,因此预压件320具有用于抵接压电振子312的弹性变形部分(弹性部3212)以及用于安装压电振子312的固定部3211,以固定压电振子312并对驱动件310施加朝向载体200的预压力,从而保持摩擦头311与载体200之间的摩擦接触。
在一些具体实施例中,如图2所示,预压件320被实施为沿平行于光轴方向延伸而成的弹片321,该弹片321将压电振子312装配于外框体100的第一侧壁110上,该弹片321具有沿平行于光轴方向分布的第一固定端32111、第二固定端32112以及第三固定端32113,该第一固定端32111与该第二固定端32112之间设置有第一弹性部32121,该第二固定端32112与该第三固定端32113之间设置第二弹性部32122,第一固定端32111、第二固定端32112以及第三固定端32113通过焊接、铆接或粘接等方式固定于外框体100的第一侧壁110上,第一弹性部32121与第二弹性部32122均平行于光轴方向延伸而成,以连接相邻两个固定端,并利用自身弹性变形的性质对驱动件310施加适当预压力。在一些部分可选实施例中,该预压件320也可被实施为有弹性的胶水。
更具体地,预压件320包括上述弹片321以及设置于该弹片321朝向载体200一侧延伸形成的至少一夹持片322,如图6、图11和图37所示,该夹持片322一侧与该弹片321的第二固定端32112连接,该夹持片322朝向载体200的一侧具有第一夹持臂和第二夹持臂,该第一夹持臂与第二夹持臂沿垂直于光轴的方向朝载体200延伸,用于夹持压电振子312以保证其安装稳定性。
其中,由于压电振子312是通过自身的弯曲振动或压电致动来实现对摩擦头311的驱动,夹持臂延伸尺寸越大,压电振子312与夹持片322的夹持臂之间的重合面面积越大,对压电振子312的振动或压电致动影响就越大。因此夹持片322的夹持臂尺寸不应大于该压电振子312的侧壁长度(即沿光轴方向的长度)的1/2,以避免夹持片322的夹持臂夹持过紧或者夹持臂于压电振子312的重合面面积过大,造成对压电振子312的振动或压电致动抑制。
在一些具体实施例中,弹片321被实施为平面弹片,也可被实施为具有折弯结构的弹片321。
在部分可选实施例中,弹片321包括设置于外框体100的第一侧壁110上的至少两个固定部3211以及连接相邻两个固定部3211的弹性部3212,如图18与图19所示,固定部3211包括固定于外框体100的第一侧壁110上的第一固定部32114和第二固定部32115,第一固定部32114和第二固定部32115可以通过焊接、铆接或粘接等方式进行固定于外框体100的第一侧壁110的外侧,弹性部3212沿平行于光轴方向延伸而成,并具有朝向压电振子312的折弯部3213,以对压电振子312上的摩擦头311施加抵接载体200的预压力。
进一步地,压电振子312上设置有导电组件700,导电组件700被装配于压电振子312与弹性部3212之间,以便驱动件310的组装和驱动。
在一些实施例中,在预压力方向上,即垂直于光轴方向上,弹性部3212覆盖压电振子312背向载体200的侧面,即弹性部3212的至少一部分与压电振子312的该侧面重叠,以使压电振子312的该侧面被弹性部3212支撑,不仅可以保持压电振子312位于一平整的平面上,而且还可以避免产生预压力不均的情况。其中,弹性部3212的面积不小于压电振子312背向载体200的侧面面积。
具体地,弹性部3212包括粘接部分和变形部分,沿垂直于光轴方向,粘接部分与压电振子312背向载体200的侧面重叠,以将压电振子312固定于弹性部3212,变形部分与压电振子312背向载体200的侧面不重叠,以发生弹性变形对驱动件310产生预压力。弹性部3212的设置使得驱动件310的压电振子312的实际运动状态与设计值更加接近,减少外部环境对压电振子312的影响,且还能防止压电振子312的振动或压电致动传递到外框体100,引起外框体100的振动或压电致动。
其中,沿垂直于光轴方向,粘接部分为弹性部3212与压电振子312背向载体200的侧面重叠的部分,变形部分为弹性部3212与压电振子312背向载体200的侧面不重叠的部分,即粘接部分用于压电振子312与弹性部3212的连接,变形部分用于对压电振子312产生预压力。
进一步地,根据公式:K=F/X,其中,K为刚度(或弹性系数),F为弹力,X为形变的位移,降低弹性部3212的K值实际上是降低了弹力对位移的敏感性,当弹性部3212的K值较小,那么位移的波动造成的弹力的波动就会变小,也就是弹性部3212作用于驱动件310的预压力的波动变小,进而使得摩擦头311与载体200之间的摩擦力更加均匀、一致。
具体地,如图18与图19所示,弹性部3212的变形部分具有镂空结构32123,以减变形部分的厚度,当变形部分的材料越单薄,从而减小弹性部3212的K值,以使弹性部3212的变形部分更适应压电振子312的弯曲振动或压电致动。变形部分沿外框体100的第一侧壁110长度方向的延伸长度越长,则弹性部3212的K值(刚度或弹性系数)越小,越容易产生弹性变形。
其中,弹性部3212的K值较小,即可发生形变,从而在载体200、驱动件310、弹性部3212组成的接触系统中,减小由于物料公差和组装公差导致的预压力变化,从而提升预压致动组件300的一致性。
具体地,预压件320的弹性部3212提供的预压力传递给驱动件310的压电振子312,以使得位于压电振子312上的摩擦头311抵接于载体200。弹性部3212由于K值较小,会因公差产生不同程度的形变,从而使得不同公差下的预压致动组件300的预压力差异变小。
进一步地,在一些实施例中,折弯部3213使得固定部3211与弹性部3212位于不同的平面,即固定部3211所在的平面与弹性部3212所在的平面相互平行并具有一定距离,以使得固定部3211固定连接于外框体100的第一侧壁110上,弹性部3212设于压电振子312背向载体200的侧面,对压电振子312施加垂直光轴方向的预压力,从而实现摩擦头311与载体200之间的摩擦接触。相比固定部3211与弹性部3212位于同一平面的平面弹片321设计,折弯部3213的存在也可以降低弹性部3212的K值,以使得弹性部3212作用于驱动件310的预压力的波动变小,进而使得摩擦头311与载体200之间的摩擦力更加均匀、一致。
其中,由于弹性部3212与第一固定部32114和第二固定部32115连接,则折弯部3213的数量也为两个,包括第一折弯部32131和第二折弯部32132,第一折弯部32131连接第一固定部32114与弹性部3212,第二折弯部32132连接第二固定部32115与弹性部3212。
在一些实施例中,参考图20,折弯部3213倾斜地连接固定部3211与弹性部3212,折弯部3213所在的平面与固定部3211所在的平面和弹性部3212所在的平面相交。
具体地,第一折弯部32131和第二折弯部32132以相对的倾斜方向连接第一固定部32114、弹性部3212和第二固定部32115,以使得预压部件具有自弹性部3212向外延伸的尺寸逐渐增大的开口,即第一折弯部32131的延长线与第二折弯部32132的延长线相交。在该预压部件中,弹性部3212外突于固定部3211,即弹性部3212所在的平面至载体200的距离大于固定部3211所在的平面至载体200的距离,这样可以使得固定部3211被固定连接于外框体100的第一侧壁110上时,弹性部3212紧压于压电振子312背向载体200的侧面,以对驱动件310产生一定的预压力。而且,可以降低弹性部3212的K值,以使得弹性部3212作用于驱动件310的预压力的波动变小,进而使得摩擦头311与载体200之间的摩擦力更加均匀、一致。
在部分可选实施例中,预压件320可被实施为一体式结构,即固定部3211与弹性部3212是一体成型的,折弯部3213在固定部3211与弹性部3212的连接位置处一次冲压形成,以提高预压件320的一致性。在部分可选实施例中,预压件320也可实施为分体式结构,即固定部3211、弹性部3212和折弯部3213是分开制造的,再通过粘接或焊接等方式连接于一体,以简化预压件320的制造。
在部分可选实施例中,预压件320可被实施为包括缓冲件323和结构件324,如图36所示,该结构件324与该外框体100的第一侧壁110连接,并将该缓冲件323固定于该外框体100的该第一侧壁110上,该缓冲件323的一侧连接该驱动件310,即该缓冲件323通过该结构件324被安装于该外框体100的第一侧壁110上,该缓冲件323被设于该驱动件310与该外框体100的第一侧壁110之间,或被设于该驱动件310与该结构件324之间,并适于受该外框体100的第一侧壁110与该驱动件310的挤压而形变,用于对该驱动件310施加预压力,以使该驱动件310的该摩擦头311抵接该载体200的第一载体侧壁211,从而该驱动件310适于在接收到一驱动信号时驱动该载体200相对该外框体100运动。
其中,该外框体100的该第一侧壁110上设有贯穿该第一侧壁110的开口,用于安装该预压致动组件300,该结构件324设置于该开口朝外的一侧,且该结构件324的尺寸不小于该开口,该缓冲件323的一侧面连接该结构件324朝向该外框体100的该第一侧壁110的一侧面,该缓冲件323的另一侧面连接该驱动件310的该压电振子312,即该缓冲件323通过贴附的方式于两侧连接该外框体100的该第一侧壁110和该驱动件310的该压电振子312。
更具体地,该缓冲件323可以被实施为胶带,其不需要固化而可以直接将该驱动件310贴附在该结构件324上,并且胶带还具有较高的平整度,以使通过该缓冲件323而直接贴装在该结构件324上的该驱动件310的该压电振子312相对该结构件324具有较好的平行度。这样,还避免了高弹性模量胶水的使用,例如,当使用UV胶粘接时,UV胶固化后弹性模量较大,不适于设置在结构件324和该驱动件310之间。
值得一提的是,该缓冲件323的尺寸可以小于、等于或者大于该驱动件310的压电振子312的尺寸,在一个示例中,该缓冲件323的尺寸等于或者大于该驱动件310的压电振子312的尺寸,从而,该驱动件310的压电振子312与该结构件324之间可以完全被该缓冲件323填充,从而有利于保证该驱动件310的压电振子312相对该结构件324的平行度。
可以理解的是,该缓冲件323可被设置于该弹片321与该压电振子312之间,如图3与图4所示,该缓冲件323的两面贴附该弹片321的侧面和该压电振子312的侧面,以连接二者且没有大幅度增加该预压致动组件300的整体厚度。
以上描述了本申请的基本原理、主要特征和本申请的优点。本行业的技术人员应该了解,本申请不受上述实施例的限制,上述实施例和说明书中描述的只是本申请的原理,在不脱离本申请精神和范围的前提下本申请还会有各种变化和改进,这些变化和改进都落入要求保护的本申请的范围内。本申请要求的保护范围由所附的权利要求书及其等同物界定。
Claims (56)
- 潜望摄像模组,其特征在于,包括:外框体;至少一载体,被设置于外框体内侧并可沿光轴方向移动;预压致动组件,被设置于所述载体的一侧,并对所述载体施加垂直于光轴方向的预压力,用于驱动所述载体沿光轴方向移动;以及被装配于所述外框体和所述载体之间的支撑组件,所述支撑组件包括第一支撑部和第二支撑部,所述第一支撑部和所述第二支撑部均被设置于与所述预压致动组件接触的所述载体的一侧,且所述第一支撑部与所述第二支撑部分别位于所述预压致动组件的上下两侧;其中,在所述预压致动组件静止的状态下,所述预压致动组件与所述载体侧壁之间的摩擦作用点至所述第一支撑部在该载体侧壁的支撑点的距离,与至所述第二支撑部在该载体侧壁的支撑点的距离相等。
- [根据细则26改正 04.03.2025]
根据权利要求1所述的潜望摄像模组,其特征在于,所述第一支撑部被装配于所述外框体的底部与所述载体的底部之间,所述第二支撑部被装配于所述外框体的顶部与所述载体的顶部之间。 - 根据权利要求2所述的潜望摄像模组,其特征在于,所述第一支撑部被紧配于所述外框体与所述载体之间,所述第二支撑部松配于所述外框体与所述载体之间。
- 根据权利要求1所述的潜望摄像模组,其特征在于,所述第一支撑部和所述第二支撑部均包括平行于光轴方向设置的导杆或者两个滚珠;所述第一支撑部的滚珠间距或导杆长度等于所述第二支撑部的滚珠间距或导杆长度。
- 根据权利要求1所述的潜望摄像模组,其特征在于,所述第二支撑部为平行于光轴方向设置的两个滚珠,所述外框体与所述载体上分别设置有L型导槽,用于将所述滚珠夹持于所述外框体与所述载体之间。
- 根据权利要求1所述的潜望摄像模组,其特征在于,所述第二支撑部为平行于光轴方向设置的导杆,所述导杆的两端固定于所述外框体上,所述载体的侧壁顶部设置有用于容置所述导杆的U型导槽。
- 根据权利要求1所述的潜望摄像模组,其特征在于,还包括磁吸组件,相对设置于所述外框体和所述载体上且沿平行于光轴方向延伸,并对所述载体施加垂直于光轴方向但不平行于预压力方向的磁吸力。
- 根据权利要求1所述的潜望摄像模组,其特征在于,所述支撑组件还包括第三支撑部,被装配于所述外框体与所述载体之间;其中,所述第一支撑部和所述第三支撑部相对设置于所述载体的底部两侧。
- 根据权利要求1所述的潜望摄像模组,其特征在于,所述预压致动组件包括:预压件,被装配于所述外框体的一侧壁上;驱动件,被装配于所述预压件与所述载体的一侧壁之间,并具有一与所述载体的该侧壁摩擦连接的摩擦头;其中,所述预压件向所述驱动件施加朝向所述载体并垂直于所述载体的该侧壁的预压力,用于保持所述驱动件的所述摩擦头与所述载体的该侧壁之间的摩擦接触。
- 根据权利要求9所述的潜望摄像模组,其特征在于,所述驱动件还包括压电振子,所述压电振子被设置于所述预压件与所述摩擦头之间,且其长度方向平行于光轴方向,用于振动或压电致动带动所述摩擦头以产生驱动所述载体移动的驱动力。
- 根据权利要求9所述的潜望摄像模组,其特征在于,所述预压件为弹片,所述弹片沿平行于光轴方向延伸并具有用于将所述预压件固定于所述外框体一侧壁上的固定部,以及用于对所述预压件施加朝向所述载体并垂直于所述载体的该侧壁的预压力。
- 侧置驱动的潜望摄像模组,其特征在于,包括:外框体;能够在所述外框体内侧沿光轴方向移动的载体,用于承载至少一透镜;预压致动组件,其被设置于所述载体的侧部,并对所述载体施加垂直于光轴方向的预压力,用于驱动所述载体沿光轴方向移动;被装配于所述外框体和所述载体之间的支撑组件;以及磁吸组件,其被设置于所述载体的底部并包括相对设置于所述外框体和所述载体上一对磁元件且沿平行于光轴方向延伸,所述磁吸组件产生垂直于预压力方向的磁吸力。
- 根据权利要求12所述的侧置驱动的潜望摄像模组,其特征在于,所述磁吸组件对所述载体的磁吸力方向与所述预压致动组件对所述载体的预压力方向均垂直于光轴方向。
- 根据权利要求12所述的侧置驱动的潜望摄像模组,其特征在于,所述预压致动组件包括:预压件,被装配于所述外框体的一侧壁上;驱动件,被装配于所述预压件与所述载体的一侧壁之间,并具有与所述载体的该侧壁摩擦连接的摩擦头;其中,所述预压件向所述驱动件施加朝向所述载体并垂直于所述载体的该侧壁的预压力,用于保持所述摩擦头与所述载体的该侧壁之间的摩擦接触。
- 根据权利要求12所述的侧置驱动的潜望摄像模组,其特征在于,其中一个所述磁元件被设置于所述载体的底面,另一所述磁元件被对应设置于所述外框体上。
- 根据权利要求15所述的侧置驱动的潜望摄像模组,其特征在于,一对所述磁元件为磁吸磁石和磁轭。
- 根据权利要求16所述的侧置驱动的潜望摄像模组,其特征在于,当所述磁吸磁石被设置于所述载体的底面时,所述磁吸磁石与所述支撑组件沿所述外框体的宽度方向相对设置于所述载体的底部,所述磁轭对应设置于所述外框体不具有所述预压致动组件的侧壁的底部。
- 根据权利要求16所述的侧置驱动的潜望摄像模组,其特征在于,当所述磁吸磁石被设置于所述载体的底面时,所述磁吸磁石的数量至少为两个,至少两个所述磁吸磁石对称设置于所述载体的底面,所述磁轭设置于所述磁吸磁石在所述外框体上的投影上。
- 根据权利要求18所述的侧置驱动的潜望摄像模组,其特征在于,所述磁轭沿光轴方向延伸分布于所述外框体上并覆盖所述磁吸磁石在所述外框体上的投影。
- 根据权利要求19所述的侧置驱动的潜望摄像模组,其特征在于,所述磁轭的长度不小于所述载体在所述外框体上的移动行程。
- 根据权利要求16所述的侧置驱动的潜望摄像模组,其特征在于,当所述支撑组件对称设置于所述载体的底部时,所述磁轭和所述磁吸磁石位于所述支撑组件之间。
- 根据权利要求19所述的侧置驱动的潜望摄像模组,其特征在于,当磁吸磁石设置于所述载体的底面上,所述磁轭被设置于所述外框体上对应所述磁吸磁石的位置上,所述磁轭具有从两侧至中心依次分布的边缘段、弯折段以及平面段,所述边缘段和所述弯折段于宽度方向对称分布于所述平面段的两侧,所述边缘段连接所述外框体,所述平面段于宽度方向上覆盖至少两个所述磁吸磁石在所述外框体上的投影。
- 根据权利要求22所述的侧置驱动的潜望摄像模组,其特征在于,所述弯折段从所述平面段和所述边缘段的相对侧边向上凸起形成一支撑面。
- 根据权利要求22所述的侧置驱动的潜望摄像模组,其特征在于,所述平面段包括投影区和连接区,所述投影区覆盖所述磁吸磁石在所述外框体上的投影,所述连接区连接所述投影区与所述弯折段和/或连接相邻两所述投影区。
- 根据权利要求14所述的侧置驱动的潜望摄像模组,其特征在于,所述驱动件还包括压电振子,所述压电振子被设置于所述预压件与所述摩擦头之间,且其长度方向平行于光轴方向,用于振动或压电致动带动所述摩擦头以产生驱动所述载体移动的驱动力。
- 根据权利要求14所述的侧置驱动的潜望摄像模组,其特征在于,所述预压件为弹片,所述弹片沿平行于光轴方向延伸并具有用于将所述预压件固定于所述外框体一侧壁上的固定部,以及用于对所述预压件施加朝向所述载体并垂直于所述载体的该侧壁的预压力。
- 潜望摄像模组,其特征在于,包括:外框体;能够在所述外框体内侧沿光轴方向移动的载体,用于承载至少一透镜;预压致动组件,被设置于所述载体的一侧,并对所述载体施加垂直于光轴方向的预压力,以用于驱动所述载体沿光轴方向移动;以及被装配于所述外框体和所述载体之间的支撑组件,所述支撑组件包括第一支撑部和第二支撑部;其中,所述第一支撑部与所述第二支撑部分别被设置于所述载体的相对两侧,所述第一支撑部被设置于与所述预压致动组件接触的所述载体的一侧,且所述第一支撑部被紧配于所述外框体的底部与所述载体的底部之间,所述第二支撑部被设置于不与所述预压致动组件接触的所述载体的另一侧且被松配于所述外框体与所述载体之间;所述预压致动组件包括:预压件,被装配于所述外框体的一侧壁上;驱动件,被装配于所述预压件与所述载体的一侧壁之间;其中,所述预压件向所述驱动件施加朝向所述载体并垂直于所述载体的该侧壁的预压力,用于保持所述驱动件与所述载体的该侧壁之间的摩擦接触。
- 根据权利要求27所述的潜望摄像模组,其特征在于,所述第二支撑部被设置于所述外框体的顶部与所述载体的顶部之间。
- 根据权利要求27所述的潜望摄像模组,其特征在于,在所述预压致动组件未被通电的状态下,所述第二支撑部和所述预压致动组件的直线距离不小于所述第一支撑部和所述预压致动组件的直线距离。
- 根据权利要求27所述的潜望摄像模组,其特征在于,所述第一支撑部和第二支撑部均包括平行于光轴方向设置的两个滚珠,所述第一支撑部的滚珠尺寸不小于所述第二支撑部的滚珠尺寸。
- 根据权利要求27所述的潜望摄像模组,其特征在于,所述支撑组件还包括第三支撑部,被装配于所述外框体与所述载体之间;其中,第一支撑部和第三支撑部相对设置于所述载体的底部两侧。
- 根据权利要求31所述的潜望摄像模组,其特征在于,所述第一支撑部、第二支撑部以及第三支撑部均包括平行于光轴方向设置的导杆或者两个滚珠。
- 根据权利要求27所述的潜望摄像模组,其特征在于,还包括磁吸组件,相对设置于所述外框体和所述载体上且沿平行于光轴方向延伸,并对所述载体施加垂直于光轴方向但不平行于预压力方向的磁吸力。
- 根据权利要求27所述的潜望摄像模组,其特征在于,所述驱动件具有与所述载体的该侧壁摩擦连接的摩擦头,所述摩擦头与所述载体的该侧壁摩擦接触。
- 根据权利要求34所述的潜望摄像模组,其特征在于,所述驱动件还包括压电振子,所述压电振子被设置于所述预压件与所述摩擦头之间,且其长度方向平行于光轴方向,用于振动或压电致动带动所述摩擦头以产生驱动所述载体移动的驱动力。
- 根据权利要求34所述的潜望摄像模组,其特征在于,所述预压件为弹片,所述弹片沿平行于光轴方向延伸并具有用于将所述预压件固定于所述外框体一侧壁上的固定部,以及用于对所述预压件施加朝向所述载体并垂直于所述载体的该侧壁的预压力。
- 潜望摄像模组,其特征在于,包括:外框体;能够在所述外框体内侧沿光轴方向移动的载体,用于承载至少一透镜;预压致动组件,被设置于所述载体的一侧,并对所述载体施加垂直于光轴方向的预压力,以用于驱动所述载体沿光轴方向移动;以及被装配于所述外框体和所述载体之间的支撑组件,所述支撑组件包括至少两个支撑部,其中至少一个所述支撑部被装配于具有所述预压致动组件的所述外框体的侧壁与所述载体的对应侧壁之间,至少两个所述支撑部沿光轴方向相对设置于所述载体的底部;其中,至少两个所述支撑部沿光轴方向均具有两个端侧,其中至少一个被装配于具有所述预压致动组件的所述外框体的侧壁与所述载体的对应侧壁之间的所述支撑部的端侧间距大于另至少一个所述支撑部的端侧间距。
- 根据权利要求37所述的潜望摄像模组,其特征在于,所述支撑组件还包括至少一个被设置于所述外框体的顶部与所述载体的顶部的支撑部,该支撑部与端侧间距更大的所述支撑部分别位于所述载体的两侧。
- 根据权利要求38所述的潜望摄像模组,其特征在于,端侧间距更大的所述支撑部被紧配于具有所述预压致动组件的所述外框体的侧壁与所述载体的对应侧壁之间,被设置于所述载体的顶部的所述支撑部被松配于所述外框体的顶部与所述载体的顶部之间。
- 根据权利要求38所述的潜望摄像模组,其特征在于,被设置于所述载体顶部的所述支撑部与端侧间距更小的所述支撑部在所述外框体底面的投影不重叠。
- 根据权利要求37所述的潜望摄像模组,其特征在于,所述支撑部为平行于光轴方向设置的两个滚珠,端侧间距更大的所述支撑部的滚珠尺寸等于端侧间距更小的所述支撑部的滚珠尺寸。
- 根据权利要求38所述的潜望摄像模组,其特征在于,所述支撑部包括平行于光轴方向设置的导杆或者两个滚珠。
- 根据权利要求37所述的潜望摄像模组,其特征在于,还包括磁吸组件,相对设置于所述外框体和所述载体上且沿平行于光轴方向延伸,并对所述载体施加垂直于光轴方向但不平行于预压力方向的磁吸力。
- 根据权利要求43所述的潜望摄像模组,其特征在于,所述磁吸组件包括设置于所述载体底部的磁吸磁石和设施与所述外框体上的磁轭,至少一所述磁吸磁石被设置于所述载体底部的一侧,该磁吸磁石至端侧间距更大的所述支撑部的距离小于该磁吸磁石至端侧间距更小的所述支撑部的距离。
- 根据权利要求37所述的潜望摄像模组,其特征在于,所述预压致动组件包括:预压件,被装配于所述外框体的一侧;驱动件,被装配于所述预压件与所述载体的一侧壁之间,并具有一所述载体的该侧壁摩擦连接的摩擦头;其中,所述预压件向所述驱动件施加朝向所述载体并垂直于所述载体的该侧壁的预压力,用于保持所述驱动件的所述摩擦头与所述载体的该侧壁之间的摩擦接触。
- 根据权利要求45所述的潜望摄像模组,其特征在于,所述驱动件还包括压电振子,所述压电振子被设置于所述预压件与所述摩擦头之间,且其长度方向平行于光轴方向,用于振动或压电致动带动所述摩擦头以产生驱动所述载体移动的驱动力。
- 根据权利要求45所述的潜望摄像模组,其特征在于,所述预压件为弹片,所述弹片沿平行于光轴方向延伸并具有用于将所述预压件固定于所述外框体的一侧壁上的固定部,以及用于对所述预压件施加朝向所述载体并垂直于所述载体的该侧壁的预压力。
- 潜望摄像模组,其特征在于,包括:外框体;能够在外框体内侧沿光轴方向移动的载体,用于承载至少一透镜;预压致动组件,被设置于所述载体的一侧,并具有至少一摩擦头,所述预压致动组件通过所述摩擦头对所述载体施加垂直于光轴方向的预压力,用于驱动所述载体沿光轴方向移动;以及被装配于所述外框体和所述载体之间的支撑组件,所述支撑组件包括分别位于所述载体的相对两侧的第一支撑部和第二支撑部,所述第一支撑部被设置于与所述预压致动组件接触的所述载体的一侧,并被设置于所述外框体的底部与所述载体的底部之间;其中,在所述预压致动组件未被通电的状态下,所述第二支撑部在具有所述预压致动组件的该外框体侧壁上的投影至所述摩擦头的距离大于所述第一支撑部在具有所述预压致动组件的该外框体侧壁上的投影至所述摩擦头的距离;所述预压致动组件包括:预压件,被装配于所述外框体的一侧壁上;驱动件,被装配于所述预压件与所述载体的一侧壁之间,并具有一与所述载体的该侧壁摩擦连接的摩擦头;其中,所述预压件向所述驱动件施加朝向所述载体并垂直于所述载体的该侧壁的预压力,用于保持所述驱动件与所述载体的该侧壁之间的摩擦接触。
- 根据权利要求48所述的潜望摄像模组,其特征在于,所述第二支撑部被设置于所述外框体的顶部与所述载体的顶部之间。
- 根据权利要求48所述的潜望摄像模组,其特征在于,所述第一支撑部被紧配于所述外框体的底部与所述载体的底部之间,所述第二支撑部被松配于所述外框体与所述载体之间。
- 根据权利要求48所述的潜望摄像模组,其特征在于,所述支撑组件还包括第三支撑部,被装配于所述外框体与所述载体之间;其中,第一支撑部和第三支撑部相对设置于所述载体的底部两侧。
- 根据权利要求51所述的潜望摄像模组,其特征在于,所述第一支撑部、第二支撑部以及第三支撑部均包括平行于光轴方向设置的导杆或者两个滚珠。
- 根据权利要求48所述的潜望摄像模组,其特征在于,还包括磁吸组件,相对设置于所述外框体和所述载体上且沿平行于光轴方向延伸,并对所述载体施加垂直于光轴方向但不平行于预压力方向的磁吸力。
- 根据权利要求48所述的潜望摄像模组,其特征在于,所述驱动件还包括压电振子,所述压电振子被设置于所述预压件与所述摩擦头之间,且其长度方向平行于光轴方向,用于振动或压电致动带动所述摩擦头以产生驱动所述载体移动的驱动力。
- 根据权利要求48所述的潜望摄像模组,其特征在于,所述预压件为弹片,所述弹片沿平行于光轴方向延伸并具有用于将所述预压件固定于所述外框体一侧壁上的固定部,以及用于对所述预压件施加朝向所述载体并垂直于所述载体的该侧壁的预压力。
- 根据权利要求48所述的潜望摄像模组,其特征在于,所述预压件包括缓冲件和固定件,所述缓冲件设于所述驱动件与所述外框体一侧壁之间,所述固定件将所述缓冲件和所述驱动件固定于所述外框体上。
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| CN118884649B (zh) | 2025-01-21 |
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| CN118900358A (zh) | 2024-11-05 |
| US20260056445A1 (en) | 2026-02-26 |
| CN118884648B (zh) | 2025-02-11 |
| CN118900359B (zh) | 2025-01-24 |
| CN118900358B (zh) | 2025-01-21 |
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