Single shaft motor

Abstract

The present invention discloses a single-axis motor, comprising a mounting seat, a carrier and at least one driving component; the mounting seat comprises a first mounting plate connected to a first side wall spaced apart from the first side wall and a second side wall therebetween; the carrier comprises a second mounting plate and a first rotating shaft protruding from two ends thereof, the first rotating shaft being pivotally connected to the first side wall and the second rotating shaft being respectively pivotally connected to the first side wall and the second side wall; each driving component comprises a driving arm and a memory alloy wire, one end of the driving arm being mounted on the first mounting plate, the other end of the driving arm being connected to one end of the memory alloy wire, when the memory alloy wire shrinks due to heat, the driving arm can produce elastic deformation and then act on the second mounting plate, thereby driving the carrier to rotate around the first and second rotating shafts, the rotating shaft can reduce the jumping or shaking during the rotation process, so that the carrier can rotate stably, which is beneficial to improving the adjustment accuracy, and the carrier has a larger rotation angle, so that the single-axis motor can be used to realize a scanning function or an anti-shake compensation function, and has a wider range of applications.

Description

Technical Field

[0001] The present invention relates to the field of optical imaging technology, and in particular to a single-axis motor with a large adjustment angle and low adjustment power consumption. Background Art

[0002] Nowadays, users have higher and higher requirements for shooting with electronic devices (such as mobile phones, tablet computers, etc.). Therefore, the camera modules configured on electronic devices are becoming more and more diversified, such as panoramic shooting, wide-angle shooting, telephoto shooting, etc.

[0003] The current method of taking a panoramic photo is generally that the user holds an electronic device in a horizontal or vertical position and rotates it. The camera records the image and synthesizes it through software to obtain a panoramic photo. Since the user will inevitably shake when rotating the electronic device, and the rotation speed is sometimes fast and sometimes slow, the final synthesized photo may be misaligned or stretched, thereby affecting the overall picture quality.

[0004] Another type of periscope camera module, which is positioned for large focal length and long-range shooting, uses a special optical path design to change the focus direction from the thickness direction of the electronic device to the width or length direction of the electronic device, so that the electronic device can use a lens with a larger focal length without increasing the thickness, and the performance and effect of long-range shooting are better. Since the periscope camera module folds the optical path, the requirements for optical image stabilization (OIS) are higher. The current common method is to use an electromagnetic drive device or an electro-deformation drive device to drive the prism assembly to rotate to achieve optical image stabilization, but both have the disadvantages of small anti-shake angle and poor anti-shake effect. In addition, the electromagnetic drive device also causes the camera module to be larger in size and has higher power consumption during adjustment.

[0005] Therefore, it is necessary to provide a single-axis motor with a larger adjustment angle, lower adjustment power consumption, and a wider range of applications to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a single-axis motor with a larger adjustment angle, lower adjustment power consumption and a wider application range.

[0007] To achieve the above-mentioned purpose, the technical solution of the present invention is: to provide a single-axis motor, suitable for a camera module, which includes a mounting seat, a carrier and at least one driving component; wherein the mounting seat includes a first side wall, a second side wall and a first mounting plate connected therebetween; the carrier includes a second mounting plate and a first rotating shaft and a second rotating shaft protruding from both ends of the second mounting plate and located in a straight line, the first rotating shaft and the second rotating shaft are respectively pivoted to the first side wall and the second side wall, and the second mounting plate is spaced apart from the first mounting plate; each of the driving components includes a driving arm and a memory alloy wire, one end of the driving arm is mounted on the first mounting plate, and the other end of the driving arm is connected to one end of the memory alloy wire, when the memory alloy wire shrinks due to heat, the driving arm can produce elastic deformation and then act on the second mounting plate, thereby driving the carrier to rotate around the first rotating shaft and the second rotating shaft.

[0008] Preferably, there are an even number of drive components located on both sides of the axis where the first rotating shaft and the second rotating shaft are located, and the carrier is driven to rotate in opposite directions respectively by the even number of drive components. Since the drive components directly act on the second mounting plate, the force point of the carrier is close to its rotating shaft, thereby increasing the rotation angle of the carrier. Therefore, when the single-axis motor is used to realize the scanning function, the field of view of the prism or plane mirror on the carrier can be expanded, thereby increasing the framing angle. In conjunction with the image synthesis technology, the effect of panoramic photos can be achieved, achieving the purpose of using a small image sensor to capture a wide field of view. When the single-axis motor is used in a periscope camera module, the anti-shake angle can be increased, thereby having a better anti-shake effect.

[0009] Preferably, the driving arm includes a fixing portion, a deformation portion and a driving portion which are arranged in sequence, the fixing portion is fixed to the first mounting plate, the deformation portion can produce elastic deformation, and the driving portion is connected to the memory alloy wire. When the memory alloy wire applies force to the driving portion, the deformation portion can be deformed, thereby causing the driving portion to be displaced and act on the second mounting plate.

[0010] Preferably, the thickness of the deformable part is smaller than the thickness of the driving part, or / and the deformable part is provided with a through hole. Through the setting of the thickness and / or the through hole, the deformation of the deformable part is at least greater than that of the driving part. Therefore, a flexible hinge is formed between the fixed part and the driving part through the deformable part, which increases the sensitivity of the deformation generated when the driving arm is subjected to force, thereby increasing the sensitivity of the carrier during rotation adjustment.

[0011] Preferably, each of the driving components further comprises a pushing block, which is connected to the driving portion and detachably abuts against the second mounting plate. The pushing block plays a role in resisting friction and reducing the friction coefficient during contact with the second mounting plate.

[0012] Preferably, the single-axis motor further comprises a friction plate, which is fixed to the second mounting plate and detachably abuts against the driving portion, and the friction plate plays the role of insulation and wear resistance.

[0013] Preferably, the single-axis motor further comprises at least one elastic member, wherein the elastic member is respectively connected to the mounting seat and the carrier, and the elastic member can be deformed when the carrier rotates, and the elastic member drives the carrier to reset when the deformation is restored.

[0014] Preferably, the elastic member includes a first connecting portion, a second connecting portion, and at least one elastic arm connected therebetween, wherein the first connecting portion and the second connecting portion are connected to the first side wall or the second side wall, and the other of the first connecting portion and the second connecting portion is connected to the second mounting plate, and the elastic arm is deformed when the carrier rotates.

[0015] Preferably, a first baffle plate and a second baffle plate spaced apart from each other are protruded from the side surface of the second mounting plate away from the driving assembly, and a receiving groove is formed between the first baffle plate and the second baffle plate.

[0016] Preferably, the single-axis motor further comprises an outer shell and an electrical connector, wherein the outer shell is covered outside the mounting seat and has an opening for exposing the accommodating groove therefrom, and the electrical connector is electrically connected to the driving arm and one end thereof protrudes out of the outer shell.

[0017] Compared with the prior art, the single-axis motor of the present invention has the following technical effects: First, the two ends of the second mounting plate of the carrier are convexly provided with a first rotating shaft and a second rotating shaft located in a straight line, and the carrier is pivotally connected to the first side wall and the second side wall of the mounting seat through the first rotating shaft and the second rotating shaft. Therefore, during the production process, the assembly accuracy between the carrier and the mounting seat can be improved, and the error between the single-axis motors produced in batches can be reduced, so that the yield rate of the single-axis motors produced in batches is improved; Second, the carrier is adjusted by rotating around the first rotating shaft and the second rotating shaft, and the rotating shaft can reduce the jumping or shaking during the rotation process, so that the rotation of the carrier is more stable, thereby improving the adjustment accuracy; Third, the memory alloy wire is used for driving. Compared with the existing electromagnetic driving method, the structure of the driving component of the present invention is simplified, and the power consumption during adjustment is reduced; Fourth, when the memory alloy wire is heated and contracted, the drive The movable arm directly acts on the second mounting plate to drive the carrier to rotate, so that the force point of the second mounting plate is close to its rotating shaft, thereby increasing the rotation angle of the carrier. Therefore, the single-axis motor can be used in a general camera module to realize the scanning function, that is, to expand the field of view of the prism or plane mirror on the carrier, thereby increasing the viewing angle. By scanning the full field of view of the prism or plane mirror, and then cooperating with the image synthesis technology, the effect of a panoramic photo can be achieved, so as to achieve the purpose of using a small image sensor to capture a large field of view, and the single-axis motor can also be used in a periscope camera module for anti-shake compensation and to increase the anti-shake angle, thereby having a better anti-shake effect; therefore, the single-axis motor has a wider range of applications; 5. The stacked installation of the first mounting plate, the drive assembly, and the second mounting plate makes the assembly of the single-axis motor more convenient and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the single-axis motor of the present invention.

[0019] Figure 2 yes Figure 1 Schematic diagram of the structure from another angle.

[0020] Figure 3 yes Figure 1 Exploded diagram of .

[0021] Figure 4 yes Figure 3 Further breakdown diagram.

[0022] Figure 5 yes Figure 4 Schematic diagram of the structure of the middle mounting base from another angle.

[0023] Figure 6 yes Figure 5 Schematic diagram of the structure from another angle.

[0024] Figure 7 yes Figure 4 Schematic diagram of the structure of the middle carrier from another angle.

[0025] Figure 8 yes Figure 7 Schematic diagram of the structure from another angle.

[0026] Fig. 9 yes Figure 4 A schematic diagram of the structure of the drive assembly and the electrical connector from another angle.

[0027] Fig.10 yes Fig. 9 Exploded diagram of .

[0028] Fig.11 yes Fig. 9 A front view of the second drive assembly.

[0029] Fig.12 yes Fig. 9 A schematic structural diagram of the second drive assembly from another angle.

[0030] Fig.13 yes Fig.12 Exploded view of a drive arm.

[0031] Fig.14 yes Figure 4 A schematic structural diagram of an elastic member in another angle.

[0032] Fig.15 It is a schematic diagram of the structure of the carrier and the driving component in the present invention.

[0033] Fig.16 It is a schematic structural diagram of the matching of the mounting seat and the driving assembly in the present invention.

[0034] Fig.17 yes Figure 1 Cross-sectional view after removing the outer shell.

[0035] Fig.18 It is a schematic diagram of the principle of driving the prism to rotate and adjust by the single-axis motor of the present invention. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are now described with reference to the accompanying drawings, in which similar element numbers represent similar elements. It should be noted that the orientation descriptions involved in the present invention, such as the orientations or positional relationships indicated by up, down, left, right, front, and back, are all based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of the present application or / and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present application. The first, second, etc. described are only used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0037] Let's combine Figure 1-Figure 17 As shown, the single-axis motor 100 provided by the present invention is mainly used to install a prism, a plane mirror or other components to adjust the angle of the prism, the plane mirror or other components relative to the image sensor 300, and has a large adjustment angle. Therefore, it can be used to realize the scanning function in a general camera module, specifically, to expand the field of view of the prism or the plane mirror, thereby increasing the framing angle. In conjunction with the image synthesis technology, the effect of a panoramic photo can be achieved, achieving the purpose of using a small image sensor to capture a large field of view, and can also be used in a periscope camera module to increase the anti-shake angle, so that the periscope camera module has a better anti-shake effect.

[0038] Continue to combine Figure 1-Figure 17As shown, the single-axis motor 100 provided by the present invention includes a mounting seat 110, a carrier 120 and at least one set of driving components 130. The mounting seat 110 includes a first side wall 111, a second side wall 112 and a first mounting plate 113 connected therebetween. The carrier 120 includes a second mounting plate 121, and a first rotating shaft 122a and a second rotating shaft 122b located in a straight line are protruded at both ends of the second mounting plate 121. The first rotating shaft 122a and the second rotating shaft 122b are pivotally connected to the first side wall 111 and the second side wall 112, respectively. At the same time, there is a gap between the second mounting plate 121 and the first mounting plate 113. The side of the second mounting plate 121 away from the first mounting plate 113 is used to install a prism, a plane mirror or other components. Each set of driving components 130 includes at least one shape memory alloy (SMA) wire 131 and at least one driving arm 132. One end of the driving arm 132 is mounted on the first mounting plate 113, and the other end of the driving arm 132 is connected to one end of the SMA wire 131. When the SMA wire 131 shrinks due to heat, the driving arm 132 can generate elastic deformation and then act on the second mounting plate 121, thereby driving the carrier 120 to rotate around the first rotating shaft 122a and the second rotating shaft 122b. The carrier 120 drives the prism or plane mirror thereon to rotate, thereby adjusting the angle of the prism or plane mirror relative to the image sensor, thereby expanding the field of view or achieving optical image stabilization.

[0039] In the present invention, SMA wire is used to drive the carrier 120 to rotate. Compared with the existing electromagnetic driving method, the present invention can make the carrier 120 have a larger rotation angle, thereby expanding the field of view of the prism or plane mirror, making the imaging effect better and the power consumption smaller, and also making the single-axis motor 100 smaller in size, which is conducive to miniaturized production.

[0040] Furthermore, the single-axis motor 100 further includes at least one elastic member 140, which is respectively connected to the mounting base 110 and the carrier 120. When the carrier 120 rotates, the elastic member 140 can be deformed, and when the elastic member 140 recovers its deformation, it drives the carrier 120 to reset.

[0041] Combine the following Figure 1-Figure 17 As shown, in one embodiment of the present invention, the single-axis motor 100 includes a set of driving components 130 and at least one elastic member 140. The driving component 130 drives the carrier 120 to rotate to achieve adjustment, and the elastic member 140 is used to drive the carrier 120 to reset.

[0042] Continue to combine Figure 1-Figure 17As shown, in another embodiment of the present invention, the single-axis motor 100 includes an even number of drive components 130, and the even number of drive components 130 are respectively located on both sides of the axis where the first rotating shaft 122a and the second rotating shaft 122b are located. Specifically, each group of drive components 130 is symmetrically arranged along the axis where the first rotating shaft 122a and the second rotating shaft 122b are located, and the even number of drive components 130 are respectively used to drive the carrier 120 to rotate in opposite directions, thereby allowing the carrier 120 to achieve rotation adjustment in two directions, and the drive component 130 is used to drive the carrier 120 to achieve reset. In this embodiment, a reset member may not be additionally provided.

[0043] In a specific implementation, the single-axis motor 100 is provided with two sets of driving components 130 , and the two sets of driving components 130 are used to drive the carrier 120 to rotate in opposite directions, thereby realizing the rotation adjustment of the carrier 120 .

[0044] More preferably, the single-axis motor 100 in this embodiment may also be provided with at least one elastic member 140. When any group of driving components 130 drives the carrier 120 to rotate, the elastic member 140 may be deformed. In this way, the elastic member 140 is utilized to enhance the reset function of the carrier 120, thereby shortening the reset time of the carrier 120 and improving the response speed of the single-axis motor 100.

[0045] Combine again below Figure 1-Figure 17 As shown, a specific embodiment of the single-axis motor 100 of the present invention is described. In this specific embodiment, the single-axis motor 100 includes two groups of drive components 130 and two elastic members 140. For the convenience of subsequent description, the two groups of drive components 130 are respectively expressed as a first drive component 130a and a second drive component 130b. The first drive component 130a and the second drive component 130b are arranged at intervals, specifically, they are arranged on both sides of the axis where the first rotating shaft 122a and the second rotating shaft 122b are located. The two elastic members 140 are symmetrically connected to the two ends of the front side of the second mounting plate 121. In this embodiment, the two elastic members 140 are arranged along the axis where the first rotating shaft 122a and the second rotating shaft 122b are located, that is, the two elastic members 140 are connected to the two ends of the second mounting plate 121 in the X-axis direction, as shown in FIG. Figure 3 As shown, each elastic member 140 is also connected to the mounting seat 110. When the first driving assembly 130a or / and the second driving assembly 130b drive the carrier 120 to rotate, both elastic members 140 can be deformed at the same time. The arrangement of the two elastic members 140 can balance the forces on the carrier 120, thereby improving the stability of the carrier 120 during rotation, improving the adjustment accuracy, increasing the restoring force of the carrier 120, and improving the response speed of the single-axis motor 100.

[0046] It can be understood that the number and position of the driving components 130 and the elastic members 140 are not limited to those in the present embodiment. Of course, more groups of driving components 130 can be provided to drive the carrier 120 respectively. Of course, only one elastic member 140 can be provided or more elastic members 140 can be provided, and the elastic member 140 can be installed at other positions of the second mounting plate 121.

[0047] Recombination Figure 1-Figure 4 As shown, in this specific embodiment, the single-axis motor 100 also includes an electrical connector 160 and an outer shell 170. The outer shell 170 is covered outside the mounting seat 110. One end of the electrical connector 160 is electrically connected to the driving arm 132 of the driving assembly 130, and the other end thereof extends out of the outer shell 170 for electrically connecting to a power supply component, as described later.

[0048] Continue to combine Figure 1-Figure 17 As shown, the structures of various parts of the single-axis motor 100 in the above-mentioned specific embodiment are described in detail.

[0049] Combine first Figure 3-4 , Figure 7-8 , Figure 15-17 As shown, the back side of the second mounting plate 121 of the carrier 120 is convexly provided with a first connecting plate 123a and a second connecting plate 123b spaced apart from each other, the first connecting plate 123a and the second connecting plate 123b are arranged at both ends of the second mounting plate 121 in the X-axis direction and protrude backward, the first rotating shaft 122a and the second rotating shaft 122b are respectively convexly provided on the side walls of the first connecting plate 123a and the second connecting plate 123b, the first rotating shaft 122a and the second rotating shaft 122b are located in the same straight line to form a rotating shaft, as shown in FIG. Figure 7-8 As shown below. Fig.15 As shown, after the first drive component 130a and the second drive component 130 are installed in cooperation with the carrier 120, the first drive component 130a and the second drive component 130b directly apply force to the back side of the second mounting plate 121, so that the force point of the carrier 120 is close to its rotation axis, thereby increasing the rotation angle of the carrier 120. In addition, compared with the prior art method in which the carrier realizes swinging by deformation of an elastic component (that is, the carrier rotates approximately around a virtual axis) and thereby realizes adjustment, the carrier 120 of the present invention rotates around the first rotation axis 122a and the second rotation axis 122b for adjustment. The first rotation axis 122a and the second rotation axis 122b can reduce the jumping or shaking during the rotation process, so that the carrier 120 rotates stably, which is beneficial to improving the adjustment accuracy.

[0050] More specifically, the first rotating shaft 122a and the second rotating shaft 122b can be integrally formed with the second mounting plate 121 or separately formed and then fixedly connected. In a preferred embodiment, the first rotating shaft 122a and the second rotating shaft 122b are separately formed with the second mounting plate 121 to facilitate installation with the mounting seat 110.

[0051] Continue to combine Figure 3-4 , Figure 7-8 , Fig.15 , Fig.17 As shown, the front side of the second mounting plate 121 is convexly provided with a first baffle 124a and a second baffle 124b spaced apart from each other, the first baffle 124a and the second baffle 124b are spaced apart along the X-axis direction, and the first baffle 124a and the second baffle 124b are both at a certain distance from the end of the second mounting plate 121. In this embodiment, the first baffle 124a and the second baffle 124b are preferably triangular, and a receiving groove 120a is formed between the first baffle 124a and the second baffle 124b, and the receiving groove 120a is used to install a prism, a plane mirror or other components. When a prism is installed in the accommodating groove 120a, the reflective surface of the prism (not shown) is attached to the second mounting plate 121, and the light incident surface and the light emitting surface of the prism are located above the second mounting plate 121, and the two side surfaces of the prism are attached to the first baffle 124a and the second baffle 124b. When light is incident from the light incident surface of the prism, it is reflected from its reflective surface to the light emitting surface. During this process, the first baffle 124a and the second baffle 124b can prevent light from passing through the two side surfaces of the prism.

[0052] It is understandable that when the carrier 120 is used to mount a plane mirror or other components, the structure of the receiving groove 120a can be set accordingly. This is a conventional method well known to those skilled in the art and will not be described in detail.

[0053] Continue to combine Figure 3-4 , Figure 7 As shown, in this embodiment, fixing blocks 125 are protruded from both ends of the front surface of the second mounting plate 121, and at least one second connecting column 126 is provided on the fixing block 125. The second connecting column 126 is used to install the elastic member 140 (see below for details).

[0054] See below Figure 3-6As shown, in this specific embodiment, the mounting base 110 also includes a supporting base plate 114 and a rear side wall 115, the first side wall 111 and the second side wall 112 are connected to the two ends of the supporting base plate 114, the rear side wall 115 is connected to the rear side of the supporting base plate 114, and the two ends of the rear side wall 115 are connected to the first side wall 111 and the second side wall 112; the first mounting plate 113 is inclined compared to the supporting base plate 114 and the rear side wall 115, and there is a transition slope or arc surface between the upper end of the first mounting plate 113 and the rear side wall 115, and between the lower end of the first mounting plate 113 and the supporting base plate 114. In addition, a first through hole 1131 is formed on the first mounting plate 113 , and a second through hole 1151 corresponding to the first through hole 1131 is formed on the rear side wall 115 . The first through hole 1131 and the second through hole 1151 are used to install the electrical connector 160 , as will be described later.

[0055] Continue to view Figure 5-6 As shown, in this specific embodiment, the first side wall 111 and the second side wall 112 are both roughly in the shape of a right triangle, and a right angle side of the first side wall 111 and the second side wall 112 is connected to the support bottom plate 114, and there is a certain distance between the first side wall 111, the second side wall 112 and the edge of the support bottom plate 114, so that the two ends of the support bottom plate 114 in the lateral direction protrude from the first side wall 111 and the second side wall 112 to form a retaining edge 114a. At the same time, the other right angle sides of the first side wall 111 and the second side wall 112 are connected to the rear side wall 115, and there is a certain distance between the plane where the rear side wall 115 is located and the edge of the rear side of the support bottom plate 113, so that the rear side of the support bottom plate 113 protrudes from the rear side wall 115 to form a retaining edge 114a, as shown in FIG. Figure 6 As shown, the retaining edge 114a is used for installing the outer shell 170, which will be described in detail later.

[0056] Combination Figure 3-4 , Fig.17 As shown, when the carrier 120 is pivotally connected to the first side wall 111 and the second side wall 112, the second mounting plate 121 of the carrier 120 is arranged parallel to the first mounting plate 113, as shown in FIG. Fig.17 As shown. Moreover, there are gaps between the carrier 120 and the first side wall 111, the second side wall 112, the support bottom plate 114, and the rear side wall 115, so as to ensure the pivoting of the carrier 120. In addition, when the entire single-axis motor 100 is subjected to a large external force, the rear side wall 115 and the support bottom plate 114 can limit the carrier 120, so as to prevent the prism, the elastic member 140 and other internal components from being damaged.

[0057] Combination Figure 3-5As shown, in this specific embodiment, the hypotenuse of the first side wall 111 and the second side wall 112 is located in front of the mounting seat 110, and at least one first fixing column 116 is protruding from the hypotenuse of the first side wall 111 and the second side wall 112, and the first fixing column 116 is used to install the elastic member 140, which will be described later in detail.

[0058] Combine the following Figure 4 , Figure 9-13 , Figure 15-17 As shown, in this specific embodiment, the first drive assembly 130a and the second drive assembly 130b have the same structure, and the first drive assembly 130a and the second drive assembly 130b are symmetrically arranged along the axis of the first rotating shaft 122a and the second rotating shaft 122b. The first drive assembly 130a is preferably arranged above the first rotating shaft 122a and the second rotating shaft 122b, and the second drive assembly 130b is arranged below the first rotating shaft 122a and the second rotating shaft 122b. Fig.10 , Fig.15 It is understandable that the first driving assembly 130a and the second driving assembly 130b are not limited to being symmetrically arranged, and their positions can also be interchanged.

[0059] Since the structures of the first driving assembly 130a and the second driving assembly 130b are the same, the second driving assembly 130b is taken as an example for detailed description. Figure 9-13 As shown, the second driving component 130b includes at least one SMA wire 131 and at least one driving arm 132. One end of the driving arm 132 is fixed to the first mounting plate 113, and the other end of the driving arm 132 is connected to one end of the SMA wire 131. The driving arm 132 can produce elastic deformation. When the SMA wire 131 is powered on and heat-contracted, force is applied to the driving arm 132 to cause it to deform, so that the driving arm 132 is displaced and acts on the second mounting plate 121 to drive the carrier 120 to rotate.

[0060] Continue to view Figure 9-13 , Fig.16 As shown, in this specific embodiment, the second driving assembly 130 has an SMA wire 131 and two driving arms 132, and the two driving arms 132 are symmetrically fixed to the first mounting plate 113 along the X-axis direction. Fig.16As shown, the ends of the two driving arms 132 that are close to each other are respectively fixed to the approximate middle of the first mounting plate 113, and the ends of the two driving arms 132 that are far away are respectively connected to the two ends of the SMA wire 131, and the SMA wire 131 is powered by the two driving arms 132. When the SMA wire 131 is powered on and heat-contracted, the SMA wire 131 pulls the ends of the two driving arms 132 that are far away from each other, causing the two driving arms 132 to deform, thereby causing the ends of the two driving arms 132 that are far away to be displaced, and the ends of the two driving arms 132 that are far away from each other act together on the second mounting plate 121 to drive the carrier 120 to rotate (see FIG. 1 ). Fig.15 In this embodiment, the two ends of the two driving arms 132 that are far from each other push the two ends of the second mounting plate 121, so that the force on the second mounting plate 121 can be more balanced, so that the carrier 120 is more stable during the rotation process.

[0061] It is understandable that the adjacent ends of the two driving arms 132 may be fixed or formed into one body, so that the two driving arms 132 form an integrated structure. In other words, the approximate middle part of one driving arm 132 is fixed to the first mounting plate 113, and the two ends of the driving arm 132 are connected to the SMA wire 131. Of course, only one driving arm 132 may be provided, and one end of the driving arm 132 may be used to act on the second mounting plate 121. In this method, it is preferred to act on the middle part of the second mounting plate 121. The above embodiments do not affect the functional realization of the driving arm 132.

[0062] See below Fig.11 , Fig.16 As shown, each driving arm 132 includes a fixed portion 132a, a deformable portion 132b and a driving portion 132c arranged in sequence, the deformable portion 132b can produce elastic deformation, the fixed portion 132a is fixed to the first mounting plate 113, and a terminal 132d is protruded from one end of the driving portion 132c away from the deformable portion 132b. The two driving arms 132 are arranged symmetrically, and the two ends of the SMA wire 131 are respectively connected to the terminal 132d. Figure 9-14 , Fig.15 As shown, when the SMA wire 131 applies force to the terminal 132d, the deformation portion 132b is deformed, so that the driving portion 132c is displaced, and one end of the driving portion 132c with the terminal 132d acts on the second mounting plate 121 to drive the carrier 120 to rotate.

[0063] In this specific embodiment, the fixed portion 132a and the driving portion 132c are both rigid areas, and the deformation amount is very small or almost impossible to deform, while the deformable portion 132b can produce elastic deformation and has a large deformation amount. The deformable portion 132b forms a flexible hinge between the fixed portion 132a and the driving portion 132c. More specifically, by setting the thickness of the deformable portion 132b to be less than the thickness of the driving portion 132c, the deformable portion 132b can obtain a large deformation amount. Or / and, a through hole can also be opened in the deformable portion 132b, so that the deformable portion 132b forms a form of an elastic arm to further increase the deformation amount of the deformable portion 132b. Of course, it is not limited to the method of realizing the deformation of the deformable portion 132b by thickness or / and opening a through hole. It is also feasible to realize the deformation by other methods.

[0064] More preferably, the driving portion 132c may be configured to be bent or curved, such as Figure 15-16 As shown, when the driving arm 132 is installed, the end with the terminal 132d protrudes away from the first mounting plate 113, that is, the end with the terminal 132d protrudes toward the second mounting plate 121, so that the driving arm 132 can act on the second mounting plate 121 with a small deformation.

[0065] Continue to see below Figure 9-13 , Figure 15-16 As shown, in this specific embodiment, the second driving mechanism 130b further includes a push block 133, which is preferably integrally formed of insulating material, and is fixed to one end of the driving portion 132c provided with the terminal 132d, and the push block 133 protrudes in a direction away from the first mounting plate 113. When the driving arm 132 is deformed and moves, the push block 133 is detachably abutted against the second mounting plate 121, that is, the driving arm 132 moves and pushes the second mounting plate 121 through the push block 133, and the push block 133 plays a role in resisting friction and reducing the friction coefficient in the process of contacting the second mounting plate 121.

[0066] In this specific embodiment, the push block 133 is a spherical structure, so a mounting hole 132e corresponding to the diameter of the push block 133 is provided on the driving portion 132c. Fig.13 As shown, the push block 133 is clamped in the mounting hole 132e to achieve connection. Of course, the push block 133 is not limited to the aforementioned shape and mounting method. For example, in other embodiments, the push block 133 can also be set as a sheet structure, and the push block 133 is directly attached to the driving part 132c, or a slot is provided on the push block 133, and the push block 133 is clamped to the driving part 132c by the slot, etc.

[0067] Continue to view Figure 9-13As shown, in the present invention, the fixing portion 132a, the deformation portion 132b, and the driving portion 132c of the driving arm 132 can be integrally formed, or can be separately formed and then fixed as one.

[0068] In the above specific implementation, the driving arm 132 is formed by connecting a fixed metal plate 1321, an arch plate 1322, and a fixed plate 1323. The metal plate 1321 has a small thickness so that it can produce elastic deformation, and a through hole is further provided in the approximate middle of the metal plate 1321 to enhance its deformation. The area with the through hole on the metal plate 1321 forms the deformation portion 132b, and the area on the metal plate 1321 located on one side of the through hole forms the fixed portion 132a. Figure 11-13 As shown, the fixing portion 132a is fixed to the fixing plate 1323; the area on the metal plate 1321 located on the other side of the through hole is fixed to one end of the arch plate 1322, and the end of the arch plate 1322 away from the metal plate 1321 is provided with a terminal 132d.

[0069] More specifically, the arched plate 1322 is bent. Fig.13 As shown, it includes a first section 13221 fixed to the metal plate 1321, a bent section 13222 extending along the first section 13221 to a side away from the metal plate 1321, and a second section 13223 extending along the bent section 13222 to a side away from the metal plate 1321, and the first section 13221 and the second section 13223 are arranged in parallel, and a terminal 132d is protruded downward at the end of the second section 13223, and the second section 13223 is also installed with the above-mentioned push block 133. Figure 15-16 As shown, when the driving arm 132 is fixed to the first mounting plate 113, the second section 13223 is away from the first mounting plate 113 and protrudes toward the second mounting plate 121. Therefore, the metal plate 1321 can make its push block 133 act on the second mounting plate 121 under a small deformation.

[0070] The structure of the first driving component 130a will not be described again. The terminal 132d of the first driving component 130a protrudes upward. Figure 9-10 , Figure 15-16 shown.

[0071] See below Figure 4 , Fig.17As shown, in a more preferred embodiment, the uniaxial motor 100 further includes a friction plate 150, which is fixed to the back of the second mounting plate 121 and corresponds to at least the push block 133. Therefore, the shape and size of the friction plate 150 are not specifically limited. In a specific setting, the friction plate 150 is set to be rectangular, and its length is greater than the distance between the centers of the two push blocks 133. The two friction plates 150 are respectively fixed to the back of the second mounting plate 121 to ensure that the push blocks 133 of the first driving assembly 130a and the second driving assembly 130b can contact the friction plate 150. When the first driving assembly 130a and the second driving assembly 130b apply force to the second mounting plate 121, the friction plate 150 acts on the friction plate 150 through the push block 133, and the friction plate 150 plays the role of insulation and wear resistance.

[0072] Recombination Figure 9-13 , Figure 15-17 As shown, in this specific embodiment, when the carrier 120 needs to be along Fig.17 When the carrier 120 is turned downward in the direction indicated by the middle arrow F1, a large current is passed through the SMA wire 131 of the first driving component 130a to make it shrink to a large extent. The SMA wire 131 shrinks due to heat and exerts force on the ends of the two driving arms 132, thereby pulling the ends of the two driving arms 132 provided with the terminals 132d to move toward each other, and the upper part of the second mounting plate 121 of the carrier 120 is pushed by the pushing block 133 provided on the driving arm 132, so that the carrier 120 is turned downward along the first rotating shaft 122a and the second rotating shaft 122b. In this process, a small current can also be passed through the SMA wire 131 of the second driving component 130b to make it in a tensioned state, so that the pushing block 133 of the second driving component 130b pushes the lower part of the second mounting plate 121, that is, in the process of the carrier 120 turning downward, an upward thrust is applied to the carrier 120 to prevent the carrier 120 from being deflected by only one side thrust, thereby affecting the adjustment accuracy.

[0073] Correspondingly, when the carrier 120 needs to be reset, a large current is passed through the SMA wire 131 of the second driving component 130b to cause it to shrink to a large extent. The SMA wire 131 shrinks and exerts force on one end of the two driving arms 132 provided with the terminal 132d, thereby pulling the one end of the driving arms 132 provided with the terminal 132d to move toward each other, and the lower part of the second mounting plate 121 is pushed by the pushing block 133 on the driving arm 132, so that the carrier 120 is turned upward, and the carrier 120 is reset. In this process, a small current can also be passed through the SMA wire 131 of the first driving component 130a to shrink it, so as to prevent the carrier 120 from deflecting.

[0074] It is understandable that the carrier 120 needs to be along Fig.17When the carrier 120 rotates upward in the direction indicated by the middle arrow F2, a larger current is passed through the SMA wire 131 of the second driving component 130b to cause it to contract to a greater extent. When the carrier 120 needs to rotate downward to reset, a larger current is passed through the SMA wire 131 of the first driving component 130a to cause it to contract to a greater extent. The principle and process are the same as above and will not be repeated.

[0075] Combine the following Figure 9-10 , Figure 15-16 As shown, in the present invention, the electrical connector 160 has a first electrical connection portion 161 and a second electrical connection portion 162 arranged at an angle, specifically, the plane where the first electrical connection portion 161 is located forms a certain angle with the plane where the second electrical connection portion 162 is located. Among them, the first electrical connection portion 161 is provided with at least two electrical connection sheets. In a specific embodiment, two first electrical connection sheets 1611 and two second electrical connection sheets 1612 are provided. The two first electrical connection sheets 1611 are located at the same horizontal position and are arranged at intervals. The two second electrical connection sheets 1612 are located below the first electrical connection sheets 1611, and the two second electrical connection sheets 1612 are arranged at intervals. Of course, the positions of the first electrical connection sheet 1611 and the second electrical connection sheet 1612 are interchangeable.

[0076] Combination Figure 2 , Fig. 9 , Figure 15-16 As shown, in one embodiment of the present invention, the electrical connector 160 and the mounting seat 110 are connected as one body by injection molding, and after the injection molding is completed, the first electrical connection portion 161 of the electrical connector 160 is fixed to the front of the first mounting plate 113, and at the same time, the second electrical connection portion 162 passes through the first through hole 1131 on the first mounting plate 113 and the second through hole 1151 on the rear side wall 115 of the mounting seat 110 in sequence, and protrudes out of the mounting seat 170 (see Figure 2 Of course, the electrical connector 160 and the mounting base 110 are not limited to being connected by injection molding. It is also feasible to mold the two separately and then install them or connect them by other methods.

[0077] When the electrical connector 160 is installed with the drive assembly 130, the two first electrical connectors 1611 are respectively electrically connected to the two drive arms 132 of the first drive assembly 130a, and are used to supply power to the two drive arms 132 of the first drive assembly 130a; the two second electrical connectors 1612 are respectively electrically connected to the two drive arms 132 of the second drive assembly 130b, and are used to supply power to the two drive arms 132 of the second drive assembly 130b. In this embodiment, the electrical connector 160 is connected to the mounting seat 110 by injection molding and is stacked on the first mounting plate 113, and then forms an electrical connection and support with the drive arms 132 of the first drive assembly 130a and the second drive assembly 130b, so that the assembly of the single-axis motor 100 is simpler and the mass production of the single-axis motor 100 is convenient.

[0078] Continue to combine Figure 9-10 , Figure 15-16 As shown, in a specific embodiment, the second electrical connection portion 162 has three connection ends arranged in parallel, namely a first connection end 1621, a second connection end 1622 and a third connection end 1623, wherein the first connection end 1621 is simultaneously connected to a first electrical connection sheet 1611 and a second electrical connection sheet 1612, while the second connection end 1622 is connected to another first electrical connection sheet 1611, and the third connection end 1623 is connected to another second electrical connection sheet 1612, and the three connection ends all protrude out of the mounting seat 170, as shown in FIG. Figure 2 As shown. The positive and negative electrodes of the two first electrical connection sheets 1611 and the positive and negative electrodes of the two second electrical connection sheets 1612 are electrically connected through three connection terminals. It is understandable that the arrangement is not limited to three connection terminals. For example, four connection terminals can also be arranged to achieve the positive and negative electrodes of the first electrical connection sheet 1611 and the second electrical connection sheet 1612.

[0079] Combine the following Figure 3-4 , Fig.14 As shown, in the present invention, the two elastic members 140 have the same structure, and the specific structure of one of them is described in detail below. Figure 4 , Fig.14 As shown, the elastic member 140 includes a first connection portion 141, a second connection portion 142 and at least one elastic arm 143 connected therebetween, wherein the first connection portion 141 and the second connection portion 142 are connected to the first side wall 111 or the second side wall 112, and the other of the first connection portion 141 and the second connection portion 142 is connected to the front side of the second mounting plate 121. When the carrier 120 rotates, the elastic arm 143 is deformed, and the elastic member 140 is used to enhance the resetting ability of the carrier 120.

[0080] More specifically, the first connection part 141 is roughly in the shape of an elongated strip, a first connection hole 1411 is provided on the first connection part 141, the second connection part 142 is in the shape of a sheet or T, the second connection part 142 is arranged corresponding to the roughly middle part of the first connection part 141 and is spaced therefrom, a second connection hole 1421 is provided on the second connection part 142, and two symmetrical elastic arms 143 are connected between the first connection part 141 and the second connection part 142, specifically, one elastic arm 143 is connected to the upper ends of the first connection part 141 and the second connection part 142, and the other elastic arm 143 is connected to the lower ends of the first connection part 141 and the second connection part 142. In this embodiment, each elastic arm 143 preferably has a plurality of arms, and each arm is preferably in an S shape. Of course, the shape of the elastic arm 143 and the number of its arms are not limited to those in this embodiment, and the elastic arm 143 can be in any other shape and structure with a large deformation amount, such as a curved shape or an arc shape. In addition, the shapes of the first connection portion 141 and the second connection portion 142 are not limited to those in this embodiment.

[0081] Combine again below Figure 3-4 , Fig.14 As shown, when the elastic member 140 is installed, the first connection portion 141 is connected to the first connection column 116, and the second connection portion 142 is connected to the second connection column 126, so that the installation of the elastic member 140 is simple, and the setting of the fixing block 125 makes the elastic member 140 located in the same plane. Of course, according to the specific positional relationship between the carrier 120 and the mounting seat 110, the fixing block 125 may not be provided. When the carrier 120 rotates in any direction, the elastic arms 143 of the two elastic members 140 at both ends thereof will be deformed, and the elastic force generated by the elastic arms 143 restoring the deformation drives the carrier 120 to reset.

[0082] See again Figure 1-4 As shown, in the present invention, the outer shell 170 is covered outside the mounting seat 110 and has an opening 171 that exposes the accommodating groove 120a. More specifically, the outer shell 170 is a rectangular structure, and the opening 171 is opened on the top surface and one side surface of the outer shell 170. After the outer shell 170 is covered outside the mounting seat 110, the bottom of the outer shell 170 abuts against the aforementioned retaining edge 114a, as shown in FIG. Figure 1-2 As shown, the outer shell 170 is convenient to install. Meanwhile, the first baffle 124 a and the second baffle 124 b of the carrier 120 are located in the opening 171 and close the opening 171 , so that the prism or plane mirror on the carrier 120 is exposed from the outer shell 170 .

[0083] Combine the following Figure 1-18As shown, taking the single-axis motor 100 with the first driving component 130a and the second driving component 130b as an example, driving the prism 200 to rotate and adjust is taken as a specific implementation method, and its working principle and process are explained.

[0084] When the carrier 120 needs to be along Fig.17 When the carrier 120 is flipped downward in the direction indicated by the middle arrow F1, a large current is passed through the SMA wire 131 of the first driving component 130a to cause it to shrink to a large extent. The SMA wire 131 shrinks due to heat and applies force to the end of the first driving arm 132 provided with the terminal 132d, pulling the deformation parts 132b of the two driving arms 132 to deform, so that the ends of the two driving arms 132 provided with the terminals 132d move toward each other, and the pushing block 133 provided on the driving arm 132 pushes the upper part of the second mounting plate 121 of the carrier 120, so that the carrier 120 rotates around the first rotating shaft 122a and the second rotating shaft 122b, and then the carrier 120 is flipped downward in the direction indicated by the arrow F1. During this process, a small current can also be passed through the SMA wire 131 of the second driving component 130b to put it in a tensioned state, so that the pushing block 133 of the second driving component 130b pushes the lower part of the second mounting plate 121, that is, an upward thrust is applied to the carrier 120 during the downward rotation of the carrier 120, to prevent the carrier 120 from being deflected by the thrust on only one side, thereby affecting the adjustment accuracy.

[0085] In the carrier 120 along Fig.17 During the downward flipping process in the direction indicated by the middle arrow F1, the two elastic members 140 will be deformed. When the carrier 120 is flipped downward into place, the SMA wire 131 is powered off. First, the elastic force generated by the two elastic members 140 restoring their deformation can be used to drive the carrier 120 to rotate upward and reset. Furthermore, a certain current can be passed through the SMA wire 131 of the second driving component 130b to cause it to contract. The SMA wire 131 contracts due to heat and applies force to one end of the two driving arms 132 provided with the terminal 132d, thereby pulling the one end of the driving arms 132 provided with the terminal 132d to move toward each other. The pushing block 133 on the driving arm 132 pushes the lower part of the second mounting plate 121, causing the carrier 120 to rotate around the first rotating shaft 122a and the second rotating shaft 122b and move along the first rotating shaft 122a and the second rotating shaft 122b. Fig.17 The direction indicated by the middle arrow F2 is turned upward to realize the reset of the carrier 120. Through the joint action of the SMA wire 131 and the elastic member 140, the carrier 120 can be driven to reset quickly, thereby improving the response speed.

[0086] Correspondingly, when the carrier 120 needs to be along Fig.17When the direction indicated by the middle arrow F2 is turned upward, a large current is passed through the SMA wire 131 of the second driving component 130b to make it shrink to a large extent. The SMA wire 131 shrinks due to heat and exerts force on the end of the driving arm 132 provided with the terminal 132d, thereby pulling the end of the driving arm 132 provided with the terminal 132d to move toward each other, and the pushing block 133 on the driving arm 132 pushes the lower part of the second mounting plate 121, thereby pushing the carrier 120 to rotate around the first rotating shaft 122a and the second rotating shaft 122b, so that the carrier 120 turns upward along the direction indicated by the arrow F2. In this process, a small current can also be passed through the SMA wire 131 of the first driving component 130a to make it in a tensioned state, so that the pushing block 133 of the first driving component 130a pushes the upper part of the second mounting plate 121, that is, exerts a downward thrust on the carrier 120 to prevent the carrier 120 from being deflected by only one side of the pulling force, thereby affecting the adjustment accuracy.

[0087] During the process of the carrier 120 flipping upward along the arrow F2, the two elastic members 140 are also deformed. When the carrier 120 flips upward to the right position, the SMA wire 131 of the second driving component 130b is powered off, and the carrier 120 can be flipped downward and reset by only using the elastic force generated by the two elastic members 140 restoring the deformation. Furthermore, a certain current can be passed through the SMA wire 131 of the first driving component 130a to cause it to shrink. The SMA wire 131 shrinks due to heat and exerts force on the ends of the two driving arms 132, thereby pulling the ends of the two driving arms 132 with the terminals 132d to move toward each other, and the upper part of the second mounting plate 121 of the carrier 120 is pushed by the pushing block 133 provided on the driving arm 132, so that the carrier 120 is pushed to rotate around the first rotating shaft 122a and the second rotating shaft 122b and flip downward along the direction indicated by the arrow F1, thereby realizing the reset of the carrier 120. Through the combined action of the SMA wire 131 and the elastic member 140 , the carrier 120 is also driven to quickly reset, thereby improving the response speed.

[0088] In the above process, the driving carrier 120 is rotated upward or downward to achieve a larger angle adjustment. Therefore, when the single-axis motor 100 is used in a general camera module, the field of view of the prism 200 can be expanded. Fig.18 As shown by the middle arrow F, by increasing the viewing angle and scanning the entire field of view of the prism 200, and combining with the image synthesis technology, the effect of a panoramic photo can be achieved. Therefore, a small image sensor 300 can be used to capture a large field of view, and there is no need for the user to rotate the electronic device to achieve the shooting of a panoramic photo as in the existing method; and when the single-axis motor 100 is used for a periscope camera module, the prism 200 is driven to rotate to compensate for the slight shake of the camera module or the electronic device. Since the adjustment angle of the carrier 120 is large, the anti-shake angle can be increased, thereby having a better anti-shake effect.

[0089] In summary, the single-axis motor 100 of the present invention has the following technical effects: First, the two ends of the second mounting plate 121 of the carrier 120 are convexly provided with a first rotating shaft 122a and a second rotating shaft 122b located in a straight line, and the carrier 120 is pivotally connected to the first side wall 111 and the second side wall 112 of the mounting seat 110 through the first rotating shaft 122a and the second rotating shaft 122b. Therefore, during the production process, the assembly accuracy between the carrier 120 and the mounting seat 110 can be improved, and the error between the single-axis motors 100 produced in batches can be reduced, so that the yield rate of the single-axis motors 100 produced in batches is improved; Second, the carrier 120 is adjusted by rotating around the first rotating shaft 122a and the second rotating shaft 122b. Compared with the method in the prior art that the carrier rotates around a virtual axis, the rotating shaft of the present invention can reduce the jumping or shaking of the carrier 120 during the rotation process, so that the rotation of the carrier 120 is stable, thereby improving the adjustment accuracy; Third, the SMA wire 131 is used for driving. Compared with the existing electromagnetic driving method, the drive component 130 of the present invention is The structure is simplified and the power consumption during adjustment is reduced; Fourth, when the SMA wire 131 shrinks due to heat, the driving arm 132 directly acts on the second mounting plate 121 to push the carrier 120 to rotate, so that the force point of the second mounting plate 121 is close to its rotation axis, thereby increasing the rotation angle of the carrier 120. Therefore, the single-axis motor 100 can be used in a general camera module to realize the scanning function, that is, to expand the field of view of the prism or plane mirror on the carrier 120, thereby increasing the viewing angle. By scanning the full field of view of the prism or plane mirror, combined with image synthesis technology, the effect of a panoramic photo can be achieved, and the purpose of using a small image sensor to take a large field of view is achieved. In addition, the single-axis motor 100 can also be used in a periscope camera module to perform anti-shake compensation and increase the anti-shake angle, thereby having a better anti-shake effect; therefore, the single-axis motor has a wider range of applications; Fifth, the stacked installation of the first mounting plate 113, the driving assembly 130, and the second mounting plate 121 makes the assembly of the single-axis motor 100 more convenient and improves production efficiency.

[0090] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A single-axis motor, suitable for a camera module, characterized in that: include: The mounting seat comprises a first side wall and a second side wall which are spaced apart from each other and a first mounting plate connected therebetween, wherein the first mounting plate is inclined relative to the first side wall and the second side wall; The carrier comprises a second mounting plate and a first rotating shaft and a second rotating shaft protruding from two ends of the second mounting plate and located in a straight line, the first rotating shaft and the second rotating shaft are pivotally connected to the first side wall and the second side wall respectively, and the second mounting plate is spaced apart from the first mounting plate; At least one driving assembly, each of which includes a driving arm and a memory alloy wire, one end of the driving arm is mounted on the first mounting plate, and the other end of the driving arm is connected to one end of the memory alloy wire, when the memory alloy wire shrinks due to heat, the driving arm can produce elastic deformation and then act on the second mounting plate, thereby driving the carrier to rotate around the first rotating shaft and the second rotating shaft, wherein The driving arm comprises a fixing portion, a deformation portion and a driving portion which are arranged in sequence, wherein the fixing portion is fixed to the first mounting plate, the deformation portion can generate elastic deformation, and the driving portion is connected to the memory alloy wire, and when the memory alloy wire applies force to the driving portion, the deformation portion can be deformed, thereby causing the driving portion to be displaced and act on the second mounting plate; and Each of the driving assemblies further includes a pushing block, which is connected to the driving portion and detachably abuts against the second mounting plate.

2. The single-axis motor according to claim 1, wherein: An even number of driving components are provided on both sides of the axis where the first rotating shaft and the second rotating shaft are located, and the even number of driving components are used to drive the carrier to rotate in opposite directions respectively.

3. The single-axis motor according to claim 1, characterized in that: The thickness of the deformation part is smaller than the thickness of the driving part, or / and the deformation part is provided with a through hole.

4. The single-axis motor according to claim 1, wherein: The invention also includes a friction plate, which is fixed to the second mounting plate and detachably abuts against the driving portion.

5. The single-axis motor according to claim 1 or 2, characterized in that: It also includes at least one elastic member, which is respectively connected to the mounting seat and the carrier. When the carrier rotates, the elastic member can be deformed, and when the elastic member recovers the deformation, it drives the carrier to reset.

6. The single-axis motor according to claim 5, characterized in that: The elastic member includes a first connecting portion, a second connecting portion, and at least one elastic arm connected therebetween, wherein one of the first connecting portion and the second connecting portion is connected to the first side wall or the second side wall, and the other of the first connecting portion and the second connecting portion is connected to the second mounting plate, and the elastic arm is deformed when the carrier rotates.

7. The single-axis motor according to claim 1 or 2, characterized in that: A first baffle plate and a second baffle plate are convexly disposed on a side surface of the second mounting plate away from the driving assembly, and a receiving groove is formed between the first baffle plate and the second baffle plate.

8. The single-axis motor according to claim 7, characterized in that: It also includes an outer shell and an electrical connector. The outer shell is covered outside the mounting seat and has an opening for exposing the accommodating groove outside. The electrical connector is electrically connected to the driving arm and one end of the electrical connector protrudes out of the outer shell.

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