prism motor

Abstract

This application provides a prism motor for driving a prism. The prism motor includes a first bracket, a second bracket, and a column. The prism is mounted on the first bracket, which includes a first engaging portion. The second bracket includes a second engaging portion corresponding to the first engaging portion. The column is located between the first and second engaging portions, and radially separates the first and second brackets. The first bracket is circumferentially rotatable about the column. This application solves the problem that the rolling elements of existing prism motors are prone to falling off during assembly.

Description

Technical Field

[0001] This application relates to camera devices, and in particular to prism motors. Background Technology

[0002] To achieve high-magnification optical zoom while maintaining a slim and lightweight design in electronic devices such as smartphones or tablets, a periscope lens assembly and a focusing lens assembly can be incorporated into the camera. The periscope lens assembly typically includes a prism and a prism carrier. The focusing lens assembly typically includes a lens and a focusing lens. To prevent camera shake during image capture, a prism motor can be installed in the periscope lens assembly, and a focusing motor can be installed in the focusing lens. The prism motor can perform OIS (optical image stabilization) rotation along two axes. The prism motor drives the prism to rotate, and the focusing motor drives the lens to move; their coordinated movement achieves image stabilization, resulting in a sharper image.

[0003] To allow a prism to rotate around an axis in a specific direction, a prism carrier, frame, and rolling element can be placed below the prism. The prism is fixed to the prism carrier, and arc-shaped tracks are respectively set on the prism carrier and frame, with the rolling element positioned between the two arc-shaped tracks. The prism carrier can slide along the arc-shaped tracks to achieve rotation relative to the frame. However, because the arc-shaped tracks are vertical or inclined, the rolling element is prone to falling off when assembled between the two arc-shaped tracks; or because the rolling element is spherical, it is difficult to position and tends to roll during assembly of the prism carrier, frame, and rolling element. Therefore, existing prism motors suffer from problems such as the rolling element easily falling off during assembly or the difficulty in assembling the prism carrier, frame, and rolling element. Summary of the Invention

[0004] The purpose of this application is to provide a prism motor that prevents the rolling element from easily falling off during assembly. The prism motor drives a prism and includes a first bracket, a second bracket, and a column. The prism is mounted on the first bracket, which includes a first engaging portion. The second bracket includes a second engaging portion corresponding to the first engaging portion. The column is located between the first and second engaging portions, and radially separates the first and second brackets. The first bracket is circumferentially rotatable around the column.

[0005] Preferably, the first bracket further includes a boss that protrudes outward, the prism is located in the opposite position of the protrusion direction, and the first engaging portion is located on the boss.

[0006] Preferably, there are two protrusions arranged horizontally outwards, the prism is located between the two protrusions, the number of the first engaging parts corresponds to the number of protrusions, and the first engaging parts are located at the lower end of the protrusions in the vertical direction, while the second engaging parts are located at the upper end of the second bracket in the vertical direction.

[0007] Preferably, the second bracket includes a support arm, the support arm and the boss are disposed corresponding to each other, and the second engaging portion is located on the support arm.

[0008] Preferably, there are two support arms, which are arranged horizontally, and the number of the second engaging portions corresponds to the number of support arms.

[0009] Preferably, there are two columns, the number of the first engaging parts corresponds to the number of columns, the number of the second engaging parts corresponds to the number of columns, and the two columns are coaxially arranged.

[0010] Preferably, the first engaging portion is a groove with a square cross-section, and the second engaging portion is a groove with a trapezoidal cross-section.

[0011] Preferably, the first engaging portion includes a first groove bottom surface, and the second engaging portion includes a second groove bottom surface and two oppositely arranged inclined surfaces connected to the second groove bottom surface. The first groove bottom surface and the two inclined surfaces respectively contact the column line, and there is a gap between the column and the second groove bottom surface.

[0012] Preferably, the prism motor further includes: a base, a first magnet, and a first circuit board. The first magnet is disposed on the first support. The first circuit board is disposed on the base, and the first circuit board includes a first coil, which is disposed corresponding to the first magnet. The first coil is configured to generate a first magnetic force when energized, and the first magnetic force acts on the first magnet to drive the first support to rotate circumferentially around the column.

[0013] Preferably, the prism motor further includes a magnetic guide component disposed on the base, and the magnetic guide component and the first magnet are correspondingly disposed.

[0014] Preferably, the first coil is disposed on the side of the first circuit board close to the first magnet, and the magnetically conductive component is disposed on the side of the first circuit board away from the first magnet.

[0015] Preferably, the prism motor further includes a second circuit board and a second magnet. The second circuit board includes a second coil. The second magnet is disposed on the second support and corresponds to the second coil. The second coil is configured to generate a second magnetic force when energized. The second magnetic force acts on the second magnet to drive the second support to rotate. The magnetically conductive component includes a magnetically conductive body, a first extension, and a second extension. The magnetically conductive body is disposed corresponding to the first magnet. The first extension and the second extension are respectively located on opposite sides of the magnetically conductive body, and extend toward opposite sides of the second magnet.

[0016] Preferably, one side of the first circuit board includes a plurality of contacts arranged in a predetermined direction, and the magnetic conductive component further includes a support portion located on the side of the first extension away from the magnetic conductive body and corresponding to the plurality of contacts.

[0017] Preferably, the prism motor further includes a first receiving portion, a second receiving portion, and a rolling element. The first receiving portion is disposed on the second support. The second receiving portion is correspondingly disposed to the first receiving portion, and the first and second receiving portions enclose a rolling space. The rolling element is located within the rolling space, and the rolling element can roll within the rolling space, while the second support can rotate along the rolling space.

[0018] Preferably, there are two first receiving portions and two second receiving portions, and two rolling spaces. The two rolling spaces include at least one guide raceway, the rolling element can roll in the guide raceway, and the second support can rotate along the guide raceway.

[0019] Preferably, the prism motor further includes a second circuit board and a second magnet. The second circuit board includes a second coil. The second magnet is disposed on the second bracket and corresponds to the second coil, the second coil being configured to generate a second magnetic force upon energization, the second magnetic force acting on the second magnet to drive the second bracket to rotate along the guide raceway.

[0020] Preferably, the first bracket further includes two protrusions arranged horizontally outwards, and the prism is located between the two protrusions. The second bracket further includes a back plate and two support arms located on both sides of the back plate. A recess space is formed between the back plate and the two support arms. The first bracket is disposed in the recess space, and the two support arms are respectively arranged corresponding to the two protrusions.

[0021] Preferably, the prism motor further includes a base, a first magnet, and a first circuit board. The first magnet is disposed on a platform at the bottom of the first support. The first circuit board is disposed on the base, and the first circuit board includes a first coil disposed corresponding to the first magnet. The platform approaches the first circuit board through the recessed space, and the first magnet and the first coil are close to each other with a gap.

[0022] Preferably, the prism motor further includes a second circuit board and a second magnet. The second circuit board includes a second coil. The second magnet is disposed on the back plate of the second bracket and corresponds to the second coil, the second magnet and the second coil being close to each other and having a gap.

[0023] This application also provides a prism motor for driving a prism, the prism motor comprising: a first bracket and a second bracket. The first bracket includes two bosses and two first engaging portions, the two bosses being horizontally outwardly disposed, the two first engaging portions being respectively located on the two bosses, and the prism being located between the two bosses. The second bracket includes a back plate, two support arms located on both sides of the back plate, and two second engaging portions, the two second engaging portions being respectively located on the two support arms, a recess space being formed between the back plate and the two support arms, wherein the first bracket is disposed in the recess space, the two support arms are respectively corresponding to the two bosses, the second engaging portions are rotatably connected to the first engaging portions, and the first bracket is configured to rotate relative to the second bracket via the first engaging portions and the second engaging portions.

[0024] The beneficial effects of this application are as follows: Since the second engaging part is located below the first engaging part, when the column is assembled between the first bracket and the second bracket, the column can be placed on the second engaging part first, and then the first engaging part can engage the column radially. This allows the first engaging part and the second engaging part to engage the column radially, thereby preventing the column from falling off due to rolling when it is assembled between the first bracket and the second bracket. Furthermore, the column can be easily positioned between the first engaging part and the second engaging part, facilitating the assembly of the first bracket, the second bracket, and the column.

[0025] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, the following describes the application in detail with reference to the preferred embodiments and accompanying drawings. Attached Figure Description

[0026] Figure 1 This is an exploded view of a prism motor (including the prism, and one arm of the second bracket is cut out) in one embodiment of this application.

[0027] Figure 2 This is a perspective cross-sectional view of a prism motor in one embodiment of this application (including the prism, but omitting the housing and a cylinder).

[0028] Figure 3 This is a cross-sectional view (including a partial enlarged view near the cylinder) of a prism motor in one embodiment of this application;

[0029] Figure 4 This is an exploded view of the first support and the prism in one embodiment of this application (a boss of the first support is cut out).

[0030] Figure 5 This is a perspective view of the second bracket in one embodiment of this application;

[0031] Figure 6 This is a perspective cross-sectional view of a prism motor in one embodiment of this application (including the prism, but omitting the housing and a rolling element in the guide raceway).

[0032] Figure 7 This is a perspective cross-sectional view of a prism motor (including the prism, but omitting a first magnet) in one embodiment of this application;

[0033] Figure 8 This is a top view of a prism motor in one embodiment of this application (the first circuit board has been cut out, and the base, housing, first bracket, second bracket, roller, rolling element and prism are omitted).

[0034] Figure 9 This is a perspective view of the first support, the first magnet, the second support, and the second magnet assembled according to one embodiment of this application;

[0035] Figure 10 This is a block diagram of a smart terminal in another embodiment of this application.

[0036] In the attached figures, the following labels are used:

[0037] 1 bracket component

[0038] 10 Magnets

[0039] 100 First Magnet

[0040] 101 Second Magnet

[0041] 11 First Reception Section

[0042] 12 First stent

[0043] 120 First Card Unit

[0044] 1200 First groove bottom surface

[0045] 121 convex platform

[0046] 122 Side Panel

[0047] 123 Inclined plate

[0048] 124 Platform

[0049] 1240 accommodating slot

[0050] 13 Second support

[0051] 130 Second Card Section

[0052] 1300 Second groove bottom surface

[0053] 1301 inclined plane

[0054] 131 Backplate

[0055] 132 outriggers

[0056] 133 Retreat Space

[0057] 14 Columns

[0058] 2 First coil

[0059] 3 First Circuit Board

[0060] 31 contacts

[0061] 4 bases

[0062] 40 Second Reception Section

[0063] 41 Base Plate

[0064] 5. Rolling element

[0065] 6 Second Circuit Board

[0066] 7. Second coil

[0067] 8. Magnetic conductive components

[0068] 81 Magnetic body

[0069] 82 First Extension

[0070] 83 Second Extension

[0071] 84 Support section

[0072] 9. Shell

[0073] P prism

[0074] F1 First Magnetic Force

[0075] F2 Second Magnetic Force

[0076] C1 Free Rolling Track

[0077] C2 guide raceway

[0078] M prism motor

[0079] CAM camera

[0080] SM smartphone Detailed Implementation

[0081] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification.

[0082] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present application will now be described in detail with reference to the accompanying drawings and embodiments. To enable those skilled in the art to better understand the solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0083] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0084] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0085] like Figure 1As shown, in one embodiment, a prism motor M is provided, including: a support component 1, a first circuit board 3, a base 4, a plurality of (e.g., 3) rolling elements 5, a second circuit board 6, a magnetically conductive component 8, and a housing 9. The support component 1 includes a magnet 10, a plurality of (e.g., 3) first receiving portions 11, a first support 12, a second support 13, and two pillars 14. The first circuit board 3 includes a first coil 2. The second circuit board 6 includes a second coil 7. The magnet 10 includes a first magnet 100 and a second magnet 101. A prism P is disposed on the support component 1; for example, a prism P is disposed on the first support 12.

[0086] like Figure 2 As shown, in one embodiment, a prism motor M is provided for driving a prism P. The prism motor M includes: a first support 12 (the first support 12 can be referenced). Figure 1 (The same applies below), second support 13 (second support 13 can be referenced) Figure 1 (The same applies below) and a column 14. A prism P is provided on a first support 12, which includes a first engaging portion 120. A second support 13 includes a second engaging portion 130, which is provided corresponding to the first engaging portion 120, for example, the second engaging portion 130 may be located below the first engaging portion 120. A column 14 is located between the first engaging portion 120 and the second engaging portion 130. The first engaging portion 120 and the second engaging portion 130 abut against the column 14 radially, and the column 14 radially separates the first support 12 and the second support 13. For example, the first support 12 and the second support 13 may be parallel to each other and form a gap after being separated by the column 14. The first support 12 may rotate around the circumference of the column 14. For example, the first support 12 may rotate around the central axis of the column 14.

[0087] like Figure 2 As shown, the first bracket 12 (please refer to the first bracket 12) Figure 1 (The same applies below) includes two first engaging portions 120. For ease of explanation, a spatial rectangular coordinate system O-xyz can be set in the prism motor M, with the y-axis of the spatial rectangular coordinate system O-xyz coinciding with the central axis of the cylinder 14. The origin of the spatial rectangular coordinate system O-xyz can be located at the midpoint of the distance between the two cylinders 14. The two first engaging portions 120 are spaced apart. The two first engaging portions 120 can be symmetrical about the XoZ plane. The first engaging portion 120 itself can be symmetrical about the YoZ plane. The first engaging portion 120 can be a first groove. For example, the first engaging portion 120 can be a square hole, the length of the first engaging portion 120 is approximately the same as the length of the cylinder 14, and the depth of the first engaging portion 120 is smaller than the radius of the cylinder 14.

[0088] like Figure 2 As shown, the second bracket 13 (please refer to the second bracket 13) Figure 1The second bracket 13 includes two second engaging portions 130, which are located below the first engaging portion 120. The second engaging portions 130 are located at the upper end of the second bracket 13 in the vertical direction (e.g., the Z-axis direction). The two second engaging portions 130 are spaced apart. The two second engaging portions 130 can be symmetrically arranged about the XoZ plane, and each second engaging portion 130 can be symmetrical about the YoZ plane. A column 14 is provided between each first engaging portion 120 and each second engaging portion 130. The second engaging portion 130 can be located directly below the first engaging portion 120, and the two can be aligned. The second engaging portion 130 can be a second groove. For example, the cross-section of the second engaging portion 130 can be trapezoidal (the width of the trapezoid can gradually decrease from top to bottom, i.e., the base of the trapezoid is on the top surface of the support arm 132), and the length of the second engaging portion 130 is approximately the same as the length of the column 14.

[0089] like Figure 2 As shown, the first engaging portion 120 and the second engaging portion 130 abut against the column 14 radially. The engaging nature of the first engaging portion 120 and the second engaging portion 130 means that after the column 14 is radially engaged between the first engaging portion 120 and the second engaging portion 130, the column 14 will not roll out of either the first engaging portion 120 or the second engaging portion 130. Any component capable of achieving this engaging function can serve as an engaging portion. The cross-section of the column 14 can be circular. The column 14 radially separates the first bracket 12 and the second bracket 13 (see references for the first bracket 12 and the second bracket 13). Figure 1 (The same applies below). There can be two columns 14. The number of first engaging portions 120 corresponds to the number of columns 14, and the number of second engaging portions 130 corresponds to the number of columns 14. The two columns 14 are spaced apart and coaxially arranged. After the first support 12 and the second support 13 are separated by the columns 14, there will be a gap between the first support 12 and the second support 13 to provide space for the first support 12 to rotate around the circumference of the column 14. The two columns 14 can be symmetrically arranged about the XoZ plane, and the column 14 itself can be symmetrical about the YoZ plane. The first support 12 can rotate around the circumference of the column 14. For example, the first support 12 can rotate around the y-axis. How the first support 12 rotates around the circumference of the column 14 can be referred to in subsequent embodiments.

[0090] like Figure 3As shown, the first engaging portion 120 is a groove with a square cross-section, and the second engaging portion 130 is a groove with a trapezoidal cross-section. The first engaging portion 120 includes a first groove bottom surface 1200, and the second engaging portion 130 includes a second groove bottom surface 1300 and two oppositely arranged inclined surfaces 1301 connecting to the second groove bottom surface 1300. The first groove bottom surface 1200 and the two inclined surfaces 1301 are in line contact with the column 14, and there is a gap between the column 14 and the second groove bottom surface 1300. The second engaging portion 130 and the first engaging portion 120 are rotatably connected to each other. (Please refer to the first bracket 12 and the second bracket 13 for further details.) Figure 1 (The same below) is configured to rotate relative to the second bracket 13 via the first engaging part 120 and the second engaging part 130. The bottom surface 1200 of the first groove and the bottom surface 1300 of the second groove can be parallel to each other and parallel to the XOY plane, and the two inclined surfaces 1301 can be symmetrically arranged about the YOZ plane.

[0091] Since the second engaging portion 130 is located below the first engaging portion 120, when the column 14 is assembled between the first bracket 12 and the second bracket 13, the column 14 can be placed on the second engaging portion 130 first, and then the first engaging portion 120 can engage the column 14 radially. This allows the first engaging portion 120 and the second engaging portion 130 to engage the column 14 radially, thus preventing the column 14 from falling off due to rolling when it is assembled between the first bracket 12 and the second bracket 13. Furthermore, the column 14 can be easily positioned between the first engaging portion 120 and the second engaging portion 130, facilitating the assembly of the first bracket 12, the second bracket 13, and the column 14. In addition, the support component 1 is divided into a first support 12 and a second support 13, and the first support 12 and the second support 13 are motion structures with rotational capabilities in different directions, which can increase the degree of freedom of spatial movement, improve the stability of the overall system, and reduce the mutual interference between the two motion structures. For example, if the support component 1 is a single support, dynamic interference will be more likely to occur.

[0092] like Figure 4As shown, preferably, the first support 12 further includes at least one (e.g., two) bosses 121, two generally parallel side plates 122, and an inclined plate 123. The inclined plate 123 is located between the two side plates 122 and can be integrally formed with the bottom of the two side plates 122. The two side plates 122 and the inclined plate 123 enclose a receiving space, in which the prism P is located. The cross-section of the prism P can be a right-angled triangle, and the two vertical planes of the prism P can be perpendicular to the x-axis and z-axis, respectively. The inclined surface of the prism P can fit against the inclined plate 123. The bosses 121 can protrude outward, for example, from the outer wall of the side plate 122, with the prism P located in the opposite direction of the protrusion. The two bosses 121 are horizontally outward. The bosses 121 can be cuboid in shape, and each boss 121 can be perpendicular to the outer wall of the corresponding side plate 122. The bosses 121 can be located at the middle position of the upper part of the side plate 122. Two protrusions 121 are spaced apart, with a prism P located between them. Each protrusion 121 includes a first engaging portion 120, meaning the number of first engaging portions 120 corresponds to the number of protrusions 121. The two protrusions 121 can be arranged parallel to each other and symmetrically about the XoZ plane. Each protrusion 121 itself can be symmetrical about the YoZ plane. The two protrusions 121 can be arranged horizontally outwards, with each first engaging portion 120 located at the lower end of its corresponding protrusion 121. Each first engaging portion 120 can be located at the lower end of its corresponding protrusion 121 in the vertical direction (e.g., the Z-axis direction). The two first engaging portions 120 can be formed by recessing upwards from the bottom surface of their respective protrusions 121.

[0093] like Figure 5 As shown, preferably, the second support 13 further includes a back plate 131 and at least one (e.g., two) support arms 132. The back plate 131 and the support arms 132 can be integrally formed. The back plate 131 can be arranged perpendicular to the two support arms 132. The support arms 132 can be cuboid in shape. The two support arms 132 are spaced apart, and the first support 12 (see reference for the first support 12) Figure 1 The bottom of the support arm 132 (hereinafter the same) can pass between the two support arms 132. The two support arms 132 can be arranged parallel to each other, or symmetrical about the XoZ plane. The two support arms 132 are correspondingly arranged with the two bosses 121. For example, each support arm 132 is correspondingly arranged with one boss 121 (see boss 121 for details). Figure 2 Below the support arm 132 (hereinafter the same), each support arm 132 includes a second engaging portion 130. The two support arms 132 are arranged horizontally, and the number of second engaging portions 130 corresponds to the number of support arms 132. Each second engaging portion 130 is located at the upper end of the corresponding support arm 132. The two second engaging portions 130 can be formed by recessing downward from the upper end of the corresponding support arm 132.

[0094] like Figure 6 As shown, in one embodiment, a prism motor M is provided for driving a prism P. The prism motor M includes: a support component 1 (please refer to the support component 1). Figure 1 (The same below), rolling element 5 and base 4, the support component 1 is provided with prism P, the support component 1 includes magnet 10 (please refer to magnet 10) Figure 1 (The same applies below). The rolling element 5 abuts against the support component 1. The base 4 includes a magnetically conductive component 8. The rolling element 5 is located between the support component 1 and the base 4. The rolling element 5 abuts against the base 4. The magnetically conductive component 8 is used to attract the magnet 10 (e.g., attract the first magnet 100) to increase the force of the support component 1 on the base 4, that is, to increase the downward pressing force of the support component 1.

[0095] like Figure 6 As shown, preferably, a plurality of (e.g., three) first receiving portions 11 are disposed on the second support 13, and the base 4 includes a plurality of (e.g., three) second receiving portions 40. Each second receiving portion 40 is disposed below a corresponding first receiving portion 11. The second receiving portions 40 and the first receiving portions 11 are correspondingly disposed. The plurality of first receiving portions 11 and the plurality of second receiving portions 40 enclose a plurality of rolling spaces. The plurality of rolling spaces include a free raceway C1 and at least one (e.g., two) guide raceways C2 (the free raceway C1 and the guide raceway C2 can be referenced). Figure 1 The second support 13 can rotate along the rolling space. The free raceway C1 can be formed by two circular blind holes, and the rolling element 5 can roll freely within the free raceway C1 (e.g., in the X and / or Y directions). The rolling element 5 can roll along the guide raceway C2. The rolling element 5 and the guide raceway C2 work together to guide the rotation of the second support 13, allowing the second support 13 to rotate along the guide raceway C2. The shape relationship between each first receiving part 11 and the corresponding second receiving part 40 can be such that they are symmetrical with reference to a plane passing through the center of the rolling element 5 and perpendicular to the z-axis. Two of the multiple first receiving parts 11 can be respectively provided on the corresponding support arm 132. For example, each support arm 132 has a first receiving part 11 at its bottom end. The first receiving parts 11 provided on each support arm 132 and the corresponding second receiving parts 40 form the guide raceway C2. The base 4 includes a base plate 41, which can be horizontally arranged and substantially parallel to the support arm 132 and the boss 121. A plurality of second receiving portions 40 can be provided on the base plate 41. Each rolling element 5 can be spherical.

[0096] like Figure 6As shown, the first receiving portion 11 and the second receiving portion 40 forming the guide raceway C2 can be arc-shaped guide grooves. The first receiving portion 11 forming the guide raceway C2 can be formed by recessing upward from the bottom end of the support arm 132. The cross-sectional width of the first receiving portion 11 forming the guide raceway C2 can gradually decrease from the bottom end of the support arm 132 upward. The minimum width of the cross-section of the first receiving portion 11 forming the guide raceway C2 can be less than the radius of the rolling element 5.

[0097] like Figure 6 As shown, the second receiving portion 40 forming the guide raceway C2 can be formed by recessing downwards from the surface of the base plate 41 of the base 4. The cross-sectional width of the second receiving portion 40 forming the guide raceway C2 gradually decreases downwards from the surface of the base plate 41, and the minimum width of the cross-section of the second receiving portion 40 forming the guide raceway C2 can be less than the radius of the rolling element 5. The two guide raceways C2 can be arranged symmetrically about the XoZ plane. An axis is set perpendicular to the base plate 41, and the centers of the two guide raceways C2 can be concentric and located on this axis. For example, this axis can be the z-axis. The second support 13 can rotate along the two guide raceways C2, that is, the second support 13 can rotate about the z-axis.

[0098] like Figure 7 As shown, the first receiving portion 11 and the second receiving portion 40 forming the free raceway C1 can be circular blind holes. The diameters of the first receiving portion 11 and the second receiving portion 40 are larger than the diameter of the rolling element 5, and the depths of the first receiving portion 11 and the second receiving portion 40 are smaller than the radius of the rolling element 5. The free raceway C1 itself can be symmetrical about the XoZ plane.

[0099] like Figure 7 As shown, each rolling element 5 is located within a rolling space, and each rolling element 5 can roll within its respective rolling space. The second support 13 can rotate along each rolling space. Each rolling element 5 abuts against its corresponding first receiving portion 11 and its corresponding second receiving portion 40. The rolling elements 5 separate the support component 1 (the support component 1 can be referred to in the attached diagram). Figure 1 (hereinafter the same) and base 4, for example, rolling element 5 separates second bracket 13 (second bracket 13 can be referred to) Figure 5 (hereinafter the same) and base 4. The second support 13 and base 4 are separated from each other by the rolling element 5 and do not contact each other. For example, the bottom surface of the second support 13 and the bottom plate 41 of the base 4 can be parallel to each other. The second support 13 can rotate along the two guide raceways C2. How the second support 13 rotates along the two guide raceways C2 can be referred to in the following embodiments.

[0100] Since the column 14 is radially engaged between the first engaging portion 120 and the second engaging portion 130, the first bracket 12 and the column 14 form a surface contact, so that the first bracket 12 can only rotate about the y-axis relative to the second bracket 13. Therefore, when the second bracket 13 rotates about the z-axis, the first bracket 12 will not rotate about the second bracket 13 in other directions (e.g., it will not rotate about the x-axis or z-axis) and thus will not produce errors. This allows the first bracket 12 to remain stable relative to the second bracket 13, thereby making the control of the rotation of the prism P more precise when it rotates about the z-axis.

[0101] like Figure 7 As shown, preferably, the first magnet 100 is disposed on the first support 12 (the first support 12 can be referred to as...). Figure 4 (The same applies below). The first magnet 100, the first coil 2, and the first circuit board 3 can be arranged parallel to each other. The first coil 2 may include an iron core to enhance the first magnetic force F1. A receiving groove 1240 can be provided at the bottom of the first bracket 12, and the first magnet 100 is disposed in the receiving groove 1240. For example, a platform 124 can be provided at the bottom of the first bracket 12, and the platform 124 can be parallel to the base plate 41 of the base 4. The first magnet 100 can be disposed on the platform 124 at the bottom of the first bracket 12. The receiving groove 1240 can be provided on the platform 124, and the first magnet 100 can be disposed (e.g., bonded) in the receiving groove 1240. The receiving groove 1240 can be in the shape of a rectangular hole. The first magnet 100 can be bonded to the first bracket 12.

[0102] like Figure 7 As shown, the first circuit board 3 includes a first coil 2, which is disposed corresponding to the first magnet 100. The first coil 2 is configured to generate a first magnetic force F1 after being energized. The first magnetic force F1 acts on the first magnet 100 to push the first support 12 (the first support 12 can be referred to as...). Figure 4The first coil 2 is disposed on the side of the first circuit board 3 near the first magnet 100, and the magnetically conductive component 8 is disposed on the side of the first circuit board 3 away from the first magnet 100. The first circuit board 3 is disposed on the base 4, for example, the first circuit board 3 and the base 4 are connected, and the first circuit board 3 can be fixed to the base plate 41 by screwing or riveting. The first circuit board 3 can be disposed parallel to the base plate 41. The direction of the first magnetic force F1 can be parallel to the z-axis. For example, when there are two first magnets 100 and the polarities of the bottom surfaces of the two first magnets 100 are opposite (the arrangement of the two first magnets 100 can be referred to in subsequent embodiments), the first magnetic force F1 can attract one of the first magnets 100 and repel the other first magnet 100, thereby causing the first support 12 to rotate around the circumference of the cylinder 14 (e.g., around the y-axis). Changing the direction of the current flowing through the first coil 2 can change the direction of the first magnetic force F1, thereby allowing the first support 12 to switch between counterclockwise and clockwise rotation around the cylinder 14. A through hole can be provided on the base plate 41, allowing the first coil 2 to face the first magnet 100 through the through hole to prevent the base plate 41 from weakening the magnetic field of the first coil 2 due to obstruction. The magnitude of the first magnetic force F1 can be set as needed, preferably allowing the first support 12, prism P, and first magnet 100 to rotate around the cylinder 14.

[0103] like Figure 7 As shown, the second circuit board 6 is connected to the base 4. The second circuit board 6 includes a second coil 7. The second coil 7 may include an iron core to enhance the second magnetic force F2. The second magnet 101, the second coil 7, and the second circuit board 6 can be arranged parallel to each other. The second circuit board 6 can be fixed to the side of the base 4 by screwing or riveting. A notch can be provided on the side of the base 4, and the second coil 7 can face the second magnet 101 through the notch on the side of the base 4 to avoid the side of the base 4 from weakening the magnetic field of the second coil 7 due to obstruction. Two second magnets 101 (the arrangement of the two second magnets 101 can be referred to in subsequent embodiments) can be disposed (e.g., glued) on the back plate 131 of the second bracket 13, and the two second magnets 101 can be arranged symmetrically with respect to the XoZ plane.

[0104] like Figure 7 As shown, the second magnet 101 is mounted on the second bracket 13 (the second bracket 13 can be referenced in the appendix). Figure 5(The same applies below) and corresponding to the second coil 7, the second coil 7 is configured to generate a second magnetic force F2 after being energized. The second magnetic force F2 acts on the second magnet 101 to drive the second support 13 to rotate, for example, to drive the second support 13 to rotate along the two guide raceways C2. The direction of the second magnetic force F2 can be parallel to the x-axis. For example, when there are two second magnets 101 and the polarities of the sides of the two second magnets 101 are opposite, the second magnetic force F2 can attract one of the second magnets 101 and repel the other, thereby causing the second support 13 to rotate along the two guide raceways C2, and then the second support 13 can drive the first support 12 (the first support 12 can be referenced). Figure 4 The second support 13 (hereinafter the same) and prism P rotate along the two guide tracks C2. Changing the direction of the current flowing through the second coil 7 can change the direction of the second magnetic force F2, thereby enabling the second support 13 to switch between counterclockwise and clockwise rotation along the two guide tracks C2. The second circuit board 6 can be set perpendicular to the first circuit board 3, and the second magnet 101 can be attached to the second support 13. The magnitude of the second magnetic force F2 can be set as needed, preferably so that the first support 12, the second support 13, prism P, the first magnet 100 and the second magnet 101 can rotate along the two guide tracks C2.

[0105] like Figures 3 to 7 As shown, preferably, the second support 13 further includes a back plate 131, and a recess space 133 is formed between the back plate 131 and the two support arms 132 located on both sides of the back plate 131. The first support 12 is disposed in the recess space 133. The back plate 131 and the two support arms 132 surround the first support 12. The platform 124 at the bottom of the first support 12 approaches the first circuit board 3 of the base 4 through the recess space 133. The first magnet 100 located on the platform 124 approaches the first coil 2 located on the first circuit board 3. The second magnet 101 located on the back plate 131 of the second support 13 approaches the second coil 7 located on the side of the second circuit board 6 of the base 4. In this embodiment, there is a gap between the first magnet 100 and the first coil 2, and there are no other components in the gap; there is also a gap between the second magnet 101 and the second coil 7, and there are no other components in the gap. The first support 12 can be driven directly by the first coil 2 through the first magnet 100, and the second support 13 can be driven directly by the second coil 7 through the second magnet 101. This design allows for a more compact component configuration, reducing the space required; and the independent driving of the first bracket 12 and the second bracket 13 reduces interference and increases sensitivity and stability.

[0106] like Figure 7 As shown, the magnetically conductive component 8 is used to attract the magnet 10 (the magnet 10 can be referenced). Figure 1 To add support component 1 (support component 1 can be referenced). Figure 1The force acting on the base 4. A magnetically conductive component 8 is disposed on the base 4, for example, below the base 4, corresponding to the first magnet 100. The magnetically conductive component 8 can be sheet-like or other shapes, and a portion of it can be located directly below the first magnet 100. The magnetically conductive component 8 itself is non-magnetic, but it can be magnetized when placed in a magnetic field, thereby generating magnetic force. The magnetically conductive component 8 can be made of silicon steel sheet, nickel steel sheet, soft iron, A3 steel, or soft magnetic alloy. The first circuit board 3 can be located between the magnetically conductive component 8 and the base plate 41. The magnetically conductive component 8 can generate an attractive force under the magnetic field of the first magnet 100, causing the first magnet 100 to press down, thereby causing the first support 12 (the first support 12 can be referenced) to... Figure 4 (The same applies below) Press down on the base plate 41 of the base 4, so that the first bracket 12 and the second bracket 13 (the second bracket 13 can be referred to) Figure 5 (The same applies below) can be more securely mounted on the base 4. After the column 14, rolling element 5, and first magnet 100 are assembled into their corresponding positions, the force generated by the magnetic conductive component 8 allows the column 14 to be more securely engaged between the first engaging part 120 and the second engaging part 130 (the first engaging part 120 and the second engaging part 130 can be referred to in the attached drawing). Figure 2 It will not roll and fall to the ground.

[0107] like Figure 8 As shown, the magnetically conductive component 8 includes a magnetically conductive body 81, a first extension 82, a second extension 83, and a support 84. The magnetically conductive body 81 is disposed corresponding to the first magnet 100. For example, the magnetically conductive body 81 can be disposed below the first magnet 100. The first extension 82 and the second extension 83 are respectively located on opposite sides of the magnetically conductive body 81. For example, the first extension 82 and the second extension 83 can be located on the left and right sides of the first magnet 100, respectively. The first extension 82 and the second extension 83 extend toward opposite sides of the second magnet 101. For example, both the first extension 82 and the second extension 83 can extend along the X-axis direction. One side of the first circuit board 3 includes a plurality of contacts 31, which are arranged along a predetermined direction (e.g., along the X-axis direction). The support 84 is located on the side of the first extension 82 away from the magnetically conductive body 81 and is disposed corresponding to the plurality of contacts 31. The contacts 31 can be gold fingers. The support 84 can be located below the multiple contacts 31 to reinforce the contacts 31.

[0108] like Figure 9 As shown, the first magnet 100 can be a magnet, and there can be two first magnets 100. The polarities of the bottom surfaces of the two first magnets 100 are opposite. For example, the bottom surface of one first magnet 100 can be the S pole, and the bottom surface of the other first magnet 100 can be the N pole. The bottom surfaces of the two first magnets 100 face the first coil 2 (the first coil 2 can be referenced). Figure 7).

[0109] like Figure 9 As shown, the second magnet 101 can be a magnet, and there can be two second magnets 101. The polarities of the sides of the two second magnets 101 are opposite. For example, the side of one second magnet 101 can be the S pole, and the side of the other second magnet 101 can be the N pole. The sides of the two second magnets 101 face the second coil 7 (the second coil 7 can be referenced). Figure 7 ).

[0110] A magnetic guide component 8 is provided on the base 4. The magnetic guide component 8 attracts the magnet 10 in the support component 1, thereby increasing the force exerted by the support component 1 on the base 4. When the rolling element 5 is assembled between the base 4 and the support component 1, the support component 1 holds the rolling element 5 between the base 4 and the support component 1 due to the attraction of the magnetic guide component 8, so that it will not fall out of the prism motor M, which facilitates the assembly of the rolling element 5.

[0111] like Figure 1 As shown, the housing 9 is mounted on the base 4. The housing 9 can be rectangular in shape, with notches on its top surface and one side to expose the prism P. The bottom surface of the housing 9 has an opening, which can be connected to the base plate 41 of the base 4 (the base plate 41 can be referenced). Figure 6 ) and the first circuit board 3 are covered. Boss 121 and support arm 132 (Boss 121 and support arm 132 can be referenced) Figure 6 It can be located between the top and bottom surfaces of the housing 9. The side of the housing 9 facing the prism P can cover the second circuit board 6, the second magnet 101, and the second coil 7.

[0112] like Figure 10 As shown, another embodiment also provides a camera CAM, including the prism motor M in the aforementioned embodiments, through which external light can pass through the prism P on the prism motor M (prism P can be referenced). Figure 1 Enter the camera CAM.

[0113] like Figure 10 As shown, another embodiment also provides a smart terminal SM, including the camera CAM in the foregoing embodiments. The smart terminal SM can be a smartphone or a tablet computer.

[0114] The prism motor provided in the embodiments of this application has been described in detail above. For those skilled in the art, based on the ideas of the embodiments of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be construed as a limitation of this application. All equivalent modifications or changes made in accordance with the spirit and technical concept of this application should still be covered by the claims of this application.

Claims

1. A prism motor for driving a prism, characterized by, include: A first bracket, on which the prism is disposed, the first bracket includes a first engaging portion; The second bracket includes a second engaging portion, which is disposed corresponding to the first engaging portion; as well as A column, located between the first engaging portion and the second engaging portion, radially spaced apart from the first bracket and the second bracket, wherein the first bracket is rotatable about the circumference of the column. The first engaging portion is a groove with a square cross-section, and the second engaging portion is a groove with a trapezoidal cross-section. The first engaging portion includes a first groove bottom surface, and the second engaging portion includes a second groove bottom surface and two oppositely arranged inclined surfaces connected to the second groove bottom surface. The first groove bottom surface and the two inclined surfaces respectively contact the column line, and there is a gap between the column and the second groove bottom surface.

2. The prism motor of claim 1, wherein The first bracket further includes a boss that protrudes outward, the prism is located in the opposite position of the protrusion direction, and the first engaging portion is located on the boss.

3. The prism motor of claim 2, wherein The number of protrusions is two, and they are arranged horizontally outward. The prism is located between the two protrusions. The number of the first engaging parts corresponds to the number of protrusions, and the first engaging part is located at the lower end of the protrusion in the vertical direction. The second engaging part is located at the upper end of the second bracket in the vertical direction.

4. The prism motor according to claim 2, characterized in that, The second bracket includes a support arm, which is disposed corresponding to the boss, and the second engaging portion is located on the support arm.

5. The prism motor according to claim 4, characterized in that, There are two support arms, which are arranged horizontally, and the number of the second engaging parts corresponds to the number of support arms.

6. The prism motor according to claim 5, characterized in that, The number of columns is two, the number of the first engaging parts corresponds to the number of columns, the number of the second engaging parts corresponds to the number of columns, and the two columns are coaxially arranged.

7. The prism motor according to claim 1, characterized in that, Also includes: Base; A first magnet is disposed on the first support; as well as A first circuit board is disposed on the base. The first circuit board includes a first coil, which is disposed corresponding to the first magnet. The first coil is configured to generate a first magnetic force when energized. The first magnetic force acts on the first magnet to drive the first bracket to rotate circumferentially around the column.

8. The prism motor according to claim 7, characterized in that, It also includes a magnetically conductive component disposed on the base, and the magnetically conductive component and the first magnet are disposed correspondingly.

9. The prism motor according to claim 8, characterized in that, The first coil is disposed on the side of the first circuit board close to the first magnet, and the magnetically conductive component is disposed on the side of the first circuit board away from the first magnet.

10. The prism motor according to claim 8, characterized in that, Also includes: A second circuit board, which includes a second coil; as well as A second magnet is disposed on the second support and corresponds to the second coil, the second coil being configured to generate a second magnetic force when energized, the second magnetic force acting on the second magnet to drive the second support to rotate; The magnetically conductive component includes a magnetically conductive body, a first extension, and a second extension. The magnetically conductive body is disposed corresponding to the first magnet. The first extension and the second extension are located on opposite sides of the magnetically conductive body, and the first extension and the second extension extend toward opposite sides of the second magnet.

11. The prism motor according to claim 10, characterized in that, One side of the first circuit board includes multiple contacts arranged in a predetermined direction. The magnetically conductive component also includes a support portion located on the side of the first extension away from the magnetically conductive body and corresponding to the multiple contacts.

12. The prism motor according to claim 1, characterized in that, Also includes A first receiving portion is disposed on the second support; The second receiving portion is provided corresponding to the first receiving portion, and the first receiving portion and the second receiving portion enclose a rolling space; as well as A rolling element is located within the rolling space, and the rolling element can roll within the rolling space. The second support can rotate along the rolling space.

13. The prism motor according to claim 12, characterized in that, There are two first receiving portions and two second receiving portions, and there are two rolling spaces. Each of the two rolling spaces includes at least one guide raceway. The rolling element can roll within the guide raceway, and the second support can rotate along the guide raceway.

14. The prism motor according to claim 13, characterized in that, Also includes: A second circuit board, which includes a second coil; as well as A second magnet is disposed on the second bracket and corresponds to the second coil, the second coil being configured to generate a second magnetic force when energized, the second magnetic force acting on the second magnet to drive the second bracket to rotate along the guide track.

15. The prism motor according to claim 1, characterized in that, The first bracket further includes two protrusions, which are arranged horizontally outwards. The prism is located between the two protrusions. The second bracket further includes a back plate and two support arms located on both sides of the back plate. A recess space is formed between the back plate and the two support arms. The first bracket is disposed in the recess space. The two support arms are respectively arranged corresponding to the two protrusions.

16. The prism motor according to claim 15, characterized in that, Also includes: Base; A first magnet is disposed on a platform at the bottom of the first support; as well as A first circuit board is disposed on the base. The first circuit board includes a first coil disposed corresponding to the first magnet. The platform approaches the first circuit board through the recessed space. The first magnet and the first coil are close to each other and have a gap.

17. The prism motor according to claim 16, characterized in that, Also includes: A second circuit board, which includes a second coil; as well as A second magnet is disposed on the back plate of the second bracket and corresponds to the second coil, the second magnet and the second coil being close to each other and having a gap.

18. A prism motor for driving a prism, the prism motor being characterized by comprising: The first bracket includes two protrusions and two first engaging parts. The two protrusions are arranged horizontally outward, the two first engaging parts are respectively located on the two protrusions, and the prism is located between the two protrusions. The second support includes a back plate, two support arms located on both sides of the back plate, and two second engaging portions. The two second engaging portions are respectively located on the two support arms, and a recess space is formed between the back plate and the two support arms. A column, located between the first engaging portion and the second engaging portion, radially spaced apart from the first bracket and the second bracket, wherein the first bracket is rotatable about the circumference of the column. The first bracket is disposed in the recessed space, the two support arms are respectively disposed corresponding to the two protrusions, the second engaging portion is rotatably connected to the first engaging portion, and the first bracket is configured to rotate relative to the second bracket via the first engaging portion and the second engaging portion. The first engaging portion is a groove with a square cross-section, and the second engaging portion is a groove with a trapezoidal cross-section. The first engaging portion includes a first groove bottom surface, and the second engaging portion includes a second groove bottom surface and two oppositely arranged inclined surfaces connected to the second groove bottom surface. The first groove bottom surface and the two inclined surfaces respectively contact the column line, and there is a gap between the column and the second groove bottom surface.

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