CN212694158U - Galvanometer structure and electronic equipment - Google Patents

Abstract

The utility model provides a mirror structure and electronic equipment shake relates to electronic equipment technical field. The galvanometer structure comprises an elastic piece, a lens assembly and a circuit board assembly, wherein the elastic piece comprises a body, a fixing part and a deformation part which is connected between the body and the fixing part and can be elastically deformed; the deformation part is provided with at least one elastic arm and a connecting part connected with the elastic arm, the connecting part is connected with the body or the fixing part, and the width of the connecting part is smaller than that of the elastic arm. The lens subassembly is when the vibration, and deformation can take place for deformation portion, mainly concentrates on connecting portion department, and the width of connecting portion is less than the width of elastic arm, and the intensity of connecting portion is less for the intensity of elastic arm, and when the lens subassembly vibrates, the change of connecting portion is out of shape, and the required power of lens subassembly vibration is less, makes the lens subassembly can keep vibrating at operating frequency more easily to electronic equipment's formation of image picture quality has been guaranteed.

Description

Galvanometer structure and electronic equipment

Technical Field

The utility model relates to an electronic equipment technical field particularly, relates to a mirror structure and electronic equipment shake.

Background

The optical imaging device can project images or videos onto a curtain, is widely applied to various places such as families, offices, schools and the like, and most of optical imaging devices have a vibrating mirror structure, so that the imaging quality of the imaging device is improved through vibration of the vibrating mirror structure.

The optical imaging equipment in the prior art needs larger power to vibrate when vibrating, and the imaging picture quality can not be ensured.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mirror structure and electronic equipment vibrate, the utility model provides a mirror structure vibrates is applied to electronic equipment on, wherein, electronic equipment can be projecting apparatus, optical brake etc. need optical imaging's equipment. The vibrating mirror structure provided by the embodiment can enable the vibrating mirror structure to vibrate at a working frequency more easily, and the imaging image quality of the electronic equipment is ensured.

The embodiment of the utility model is realized like this:

in a first aspect, the utility model provides a mirror structure shakes, the mirror structure that shakes includes: the elastic element comprises a body, a fixing part and a deformation part which is connected between the body and the fixing part and can be elastically deformed, the body is fixedly connected with the lens assembly, and the fixing part is fixedly connected with the circuit board assembly;

the deformation part is provided with at least one elastic arm and a connecting part connected with the elastic arm, the connecting part is connected with the body or the fixing part, and the width of the connecting part is smaller than that of the elastic arm.

The embodiment of the utility model provides an in, the mirror structure shakes at the during operation, the lens subassembly vibrates for circuit board subassembly, because body and lens subassembly fixed connection, fixed part and circuit board subassembly fixed connection, the lens subassembly is when vibrating, deformation can take place for deformation portion, especially concentrate on each junction, mainly concentrate on connecting portion department promptly, the width of connecting portion is less than the width of elastic arm, the intensity of connecting portion is less for the intensity of elastic arm, when the lens subassembly vibrates, the deformation of changing of connecting portion, the required power of lens subassembly vibration is less, make the lens subassembly can keep vibrating at operating frequency more easily, thereby electronic equipment's formation of image picture quality has been guaranteed.

In an alternative embodiment of the present invention, the elastic arm includes a first elastic arm and a second elastic arm, the connecting portion includes a first connecting portion, one end of the first connecting portion is connected to the first elastic arm, and the other end is connected to the second elastic arm, and the width of the first connecting portion is smaller than the width of the first elastic arm and the width of the second elastic arm.

When the lens subassembly is at the vibration in-process, lens subassembly shake is followed to one in first elastic arm and the second elastic arm, another is fixed with the circuit board subassembly, make the stress of whole deformation portion mostly concentrate on first connecting portion department, the width of first connecting portion is less than the width of first elastic arm and second elastic arm simultaneously, make the intensity of first connecting portion be less than the intensity of first elastic arm and second elastic arm simultaneously, the lens subassembly is when the vibration, the less first connecting portion of intensity is changeed and is produced great deformation, make the lens subassembly keep the vibration that the operating frequency is stable more easily, guarantee electronic equipment's formation of image picture quality.

In an alternative embodiment of the present invention, the connecting portion further includes a second connecting portion, one end of the second connecting portion is connected to the first elastic arm, and the other end is connected to the body, and the width of the second connecting portion is smaller than the width of the first elastic arm and the width of the body.

The second connecting portion of connecting first elastic arm and body also is the place that produces deformation easily when the lens subassembly vibrates, and the width of second connecting portion is less than the width of first elastic arm and the width of body simultaneously, and the second connecting portion can produce great deformation when the lens subassembly is vibrating, and the required power of lens subassembly vibration is less, makes the lens subassembly keep vibrating at operating frequency more easily, guarantees the formation of image picture quality.

In an alternative embodiment of the present invention, the connecting portion further includes a third connecting portion, one end of the third connecting portion is connected to the second elastic arm, and the other end is connected to the fixing portion, and a width of the third connecting portion is smaller than a width of the second elastic arm and a width of the fixing portion.

Connect second elastic arm and fixed third connecting portion also be the place that produces deformation easily when the lens subassembly vibrates, the width of third connecting portion is less than the width and the fixed width of second elastic arm simultaneously, third connecting portion can produce great deformation when the lens subassembly is vibrating, make the lens subassembly can keep vibrating at same frequency more easily, the stability of lens subassembly vibration has been improved, the required power of lens subassembly vibration is less, make the lens subassembly keep vibrating at operating frequency more easily.

In an alternative embodiment of the present invention, the connecting portion is circular arc-shaped.

When the lens subassembly is when the vibration, the great connecting portion of production deformation adopt convex connecting portion for the place that stress is comparatively concentrated, can make stress comparatively even respectively on connecting portion, make the stress concentration degree on the connecting portion descend, avoid stress concentration to lead to connecting portion to damage, improved the life of whole elastic component.

In the optional embodiment of the utility model, the galvanometer structure still includes drive assembly, drive assembly includes drive coil and magnet portion, the drive coil with circuit board subassembly electricity is connected, the lens subassembly includes mount and mounting bracket, the mount with body fixed connection, the mounting bracket sets up the mount is close to one side of circuit board subassembly, magnet portion installs on the mounting bracket, the mount with mounting bracket integrated into one piece.

Mount and mounting bracket integrated into one piece can reduce the production processes of whole lens subassembly, reduce the cost.

In an alternative embodiment of the present invention, the mounting bracket includes a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are spaced apart from each other, the magnet portion is mounted on the first mounting plate, and the second mounting plate is engaged with the driving coil.

The magnet portion is installed and is made the second mounting panel possess magnetism equally on first mounting panel, inserts the second mounting panel inside to the drive coil, and the drive coil produces ampere force under the effect in magnetic field, and the second mounting panel receives reverse ampere force effect to appear the motion to the lens vibration of drive installation on the mount improves electronic equipment's formation of image picture quality.

In an alternative embodiment of the present invention, the circuit board assembly includes a supporting frame and a circuit board, the supporting frame is fixedly connected to the circuit board, and the supporting frame is disposed between the circuit board and the lens assembly.

The support frame is arranged between the circuit board and the elastic piece, and the support frame can be arranged when the driving coil is matched with the second mounting plate, so that the thickness of the support frame is reduced for the whole vibrating mirror structure, and the size of the vibrating mirror structure is reduced.

In an alternative embodiment of the present invention, a supporting pillar is protruded from the supporting frame, and the supporting pillar contacts the fixing portion.

Certain distance in interval between fixed part and the support frame when the mirror subassembly that shakes vibrates, for deformation portion vibration provides the vibration space, guarantees the vibration range of lens subassembly.

In a second aspect, an embodiment of the present invention provides an electronic device, where the electronic device includes the vibrating mirror structure provided in the first aspect.

The effective effect of the electronic device provided by the second aspect is the same as the advantageous effect of the galvanometer structure provided by the first aspect, and is not described herein in detail.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a first view angle of a galvanometer structure according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an elastic member of a galvanometer structure according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a second viewing angle of the galvanometer structure according to an embodiment of the present invention.

Fig. 4 is a partial enlarged view of the galvanometer structure provided by the embodiment of the present invention at IV in fig. 2.

Fig. 5 is a schematic structural diagram of a circuit board assembly and a driving coil according to an embodiment of the present invention.

Fig. 6 is an exploded view of a lens assembly and a magnet portion of a galvanometer structure according to an embodiment of the present invention.

Fig. 7 is an exploded view of a galvanometer structure according to an embodiment of the present invention.

The icon is 100-galvanometer structure; 110-an elastic member; 111-a body; 112-a fixed part; 113-a deformation section; 114-a first light-transmitting aperture; 115-a resilient arm; 1152-a first resilient arm; 1154-a second resilient arm; 116-a connecting portion; 1162-a first connection; 1164-a second connecting portion; 1166-a third connecting portion; 120-a lens assembly; 121-a fixing frame; 122-a mounting frame; 1221-a first mounting plate; 1223-a second mounting plate; 123-mounting port; 124-a lens; 130-a circuit board assembly; 131-a second light-transmitting hole; 132-a circuit board; 133-a support frame; 134-connection port; 135-support column; 140-a drive assembly; 142-a drive coil; 144-magnet portion.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1, the present embodiment provides a galvanometer structure 100, and the galvanometer structure 100 provided in the present embodiment is applied to an electronic device, where the electronic device may be a projector, an optical actuator, and other devices requiring optical imaging. The galvanometer structure 100 provided in this embodiment can improve the stability of use and vibration.

Referring to fig. 1 and fig. 2, in the present embodiment, the galvanometer structure 100 includes an elastic element 110, a lens assembly 120, and a circuit board assembly 130, where the elastic element 110 includes a body 111, a fixing portion 112, and a deformation portion 113 connected between the body 111 and the fixing portion 112 and capable of being elastically deformed, the body 111 is fixedly connected to the lens assembly 120, and the fixing portion 112 is fixedly connected to the circuit board assembly 130; the deformation part 113 has at least one elastic arm 115 and a connection part 116 connected to the elastic arm 115, the connection part 116 is connected to the body 111 or the fixing part 112, and the width of the connection part 116 is smaller than that of the elastic arm 115.

In the present embodiment, the elastic arm 115 has an elongated shape, the long side of the elastic arm 115 is the longitudinal direction, the short side is the width direction, and the width of the elastic arm 115 is the dimension in the width direction. The connecting portion 116 is connected to an end portion of the elastic arm 115 in the longitudinal direction.

The connecting portion 116 has one end connected to the elastic arm 115 and the other end connected to the fixing portion 112 or the body 111, and defines a direction in which the connecting portion 116 extends from the elastic arm 115 to the fixing portion 112 or the body 111 as a longitudinal direction and a direction perpendicular to the longitudinal direction as a width direction, where the width of the connecting portion is a dimension in the width direction.

Referring to fig. 3, in the present embodiment, the elastic member 110 has a first light hole 114, the circuit board assembly 130 has a second light hole 131, the first light hole 114 is connected to the second light hole 131 and is disposed corresponding to the lens 124 of the lens assembly 120, and when a light source of the electronic device passes through the first light hole 114 and the second light hole 131 and irradiates the lens 124, the lens assembly 120 vibrates, so that the light source slightly shakes on the display device, thereby improving the imaging quality of the electronic device. In order to ensure the imaging quality of the electronic device, it is necessary to maintain the vibrating mirror structure at a stable vibration of an operating frequency.

In this embodiment, the elastic member 110 is integrally formed, the elastic member 110 is produced by an integrally formed method, and the deformation portion 113 has stronger stress bearing capability when deforming during the vibration of the lens assembly 120, so that the elastic member is not easy to break or break.

Furthermore, the elastic member 110 is integrally molded by using the same material, and the same material can reduce the manufacturing processes of the elastic member 110 and the manufacturing cost of the elastic member 110.

In this embodiment, when the galvanometer structure 100 operates, the lens assembly 120 vibrates relative to the circuit board assembly 130, because the body 111 is fixedly connected to the lens assembly 120, the fixing portion 112 is fixedly connected to the circuit board assembly 130, the lens assembly 120 vibrates, the deformation portion 113 deforms, and is particularly concentrated on each connection portion, i.e., mainly concentrated on the connection portion 116, the width of the connection portion 116 is smaller than the width of the elastic arm 115, the strength of the connection portion 116 is smaller than that of the elastic arm 115, when the lens assembly 120 vibrates, the connection portion 116 is more easily deformed, the power required for vibrating the lens assembly 120 is smaller, so that the lens assembly 120 can more easily keep vibrating at the working frequency, and thus the imaging quality of the electronic device is ensured. It will be readily appreciated that the more easily the connecting portion 116 is deformed, the less power is required by the lens assembly 120 when vibrated. As the connecting portion 116 is more difficult to deform, the more power the lens assembly 120 requires when vibrating.

In this embodiment, the deformation of the deformation portion 113 enables the lens assembly 120 to generate micro-vibration, thereby preventing the connection between two rigid components of the lens assembly 120 and the circuit board assembly 130 from shaking and causing scattering of internal components of the electronic device.

In the present embodiment, the connecting portion 116 has a circular arc shape. When the lens assembly 120 vibrates, the connecting portion 116 with large deformation is a place with concentrated stress, and the connecting portion 116 with arc shape is adopted, so that the stress can be uniformly distributed on the connecting portion 116, the stress concentration degree on the connecting portion 116 is reduced, the stress is prevented from being concentrated on a certain position on the connecting portion 116, the service life of the elastic part 110 is prolonged, the stress distribution on the connecting portion 116 is further uniform, when the lens assembly 120 vibrates, the stress distribution on the elastic part 110 is uniform, the lens assembly 120 can keep stable vibration when vibrating, abnormal vibration is avoided, and the vibration stability of the lens assembly 120 is improved.

Stability is understood to mean that the lens assembly 120 is able to maintain a fixed frequency of vibration at all times.

Referring to fig. 4, in the present embodiment, the elastic arm 115 includes a first elastic arm 1152 and a second elastic arm 1154, the connection portion 116 includes a first connection portion 1162, one end of the first connection portion 1162 is connected to the first elastic arm 1152, and the other end is connected to the second elastic arm 1154, and a width of the first connection portion 1162 is smaller than a width of the first elastic arm 1152 and a width of the second elastic arm 1154.

In this embodiment, two elastic arms 115 are respectively a first elastic arm 1152 and a second elastic arm 1154, the first elastic arm 1152 and the second elastic arm 1154 are both elongated, and the first elastic arm 1152 and the second elastic arm 1154 are connected by a first connection portion 1162. When the lens assembly 120 vibrates, one of the first elastic arm 1152 and the second elastic arm 1154 shakes along with the lens assembly 120, and the other one is fixed to the circuit board assembly 130, so that most of the stress of the entire deformation portion 113 is concentrated at the first connection portion 1162, because the first connection portion 1162, the first elastic arm 1152 and the second elastic arm 1154 are made of the same material, the width of the first connection portion 1162 is smaller than the widths of the first elastic arm 1152 and the second elastic arm 1154, so that the strength of the first connection portion 1162 is smaller than the strengths of the first elastic arm 1152 and the second elastic arm 1154, when the lens assembly 120 vibrates, the first connection portion 1162 with smaller strength is more easily deformed, and the lens assembly 120 is more easily kept vibrating at a stable working frequency.

In order to make the strength of the first connection portion 1162 smaller than the strength of the first elastic arm 1152 and the second elastic arm 1154 at the same time, in addition to making the width of the first connection portion 1162 smaller than the width of the first elastic arm 1152 and the second elastic arm 1154, the first connection portion 1162 may be made of a material having lower strength than the first elastic arm 1152 and the second elastic arm 1154 to achieve the function.

In this embodiment, the first elastic arm 1152 and the second elastic arm 1154 are substantially parallel, the first connection portion 1162 is arc-shaped, the first connection portion 1162 is connected to the first elastic arm 1152 and the second elastic arm 1154 smoothly, when the deformation portion 113 deforms, the stress concentrated on the first connection portion 1162 can be distributed on the first connection portion 1162 more uniformly, so that the stress concentration degree on the first connection portion 1162 decreases, the first connection portion 1162 can be prevented from being stressed locally, the first connection portion 1162 is damaged, and therefore the service life of the deformation portion 113 is prolonged.

In this embodiment, the connection portion 116 further includes a second connection portion 1164, one end of the second connection portion 1164 is connected to the first elastic arm 1152, and the other end is connected to the body 111, and the width of the second connection portion 1164 is smaller than the width of the first elastic arm 1152 and the width of the body 111.

Similarly, when the lens assembly 120 vibrates, the second connecting portion 1164 connecting the first elastic arm 1152 and the body 111 is also a place easy to deform, the width of the second connecting portion 1164 is smaller than the width of the first elastic arm 1152 and the width of the body 111, when the lens assembly 120 vibrates, the second connecting portion 1164 can deform greatly, and the power required by the lens assembly 120 to vibrate is smaller, so that the lens assembly 120 can more easily keep vibrating at the working frequency, and the imaging quality is ensured.

It is easy to understand that, similarly, the second connecting portion 1164 is also a place where the stress is concentrated, and the second connecting portion 1164 is in the shape of an arc, so that the stress is concentrated on the second connecting portion 1164, the stress concentration degree is reduced, and the service life of the entire elastic element 110 and the stability of the lens assembly 120 in vibration are improved.

For convenience of describing the position of the circular arc on the second connection portion 1164, the connection portion of the second connection portion 1164 with the body 111 and the first elastic arm 1152 is defined as an end portion, and the remaining portion is defined as a side portion.

In this embodiment, the second connection portion 1164 is connected to an end of the first elastic arm 1152, which is away from the first connection portion 1162, such that the second connection portion 1164 is perpendicular to the first elastic arm 1152, and stress is concentrated on all sides of the second connection portion 1164. The side portions of the second connecting portion 1164 are circular, that is, the second connecting portion 1164 is smoothly transited when connecting the body 111 and the first elastic arm 1152, and the smooth transition can make stress uniformly distributed on the second connecting portion 1164.

In this embodiment, the connecting portion 116 further includes a third connecting portion 1166, one end of the third connecting portion 1166 is connected to the second elastic arm 1154, and the other end is connected to the fixing portion 112, and the width of the third connecting portion 1166 is smaller than the width of the second elastic arm 1154 and the width of the fixing portion 112.

In this embodiment, when the lens assembly 120 vibrates, the third connecting portion 1166 connecting the second elastic arm 1154 and the fixed portion is also a location where deformation is easily generated, and the width of the third connecting portion 1166 is smaller than the width of the second elastic arm 1154 and the fixed width at the same time, when the lens assembly 120 vibrates, the third connecting portion 1166 can generate large deformation, and the smaller the power required by the lens assembly 120 to vibrate is, so that the lens assembly 120 is more easily kept vibrating at the working frequency, and the imaging quality is ensured.

It is easy to understand that, similarly, the third connecting portion 1166 is also a place where the stress is concentrated, and the third connecting portion 1166 is in the shape of an arc, so that the stress is concentrated on the third connecting portion 1166, the stress concentration degree is reduced, and the service life of the entire elastic element 110 and the stability of the lens assembly 120 in vibration are improved.

In the present embodiment, the third connecting portion 1166 is aligned with the second elastic arm 1154, such that the stress on the third connecting portion 1166 is mostly concentrated on the side near the first elastic arm 1152, and the arc shape of the third connecting portion 1166 is disposed on the side near the first elastic arm 1152.

In this embodiment, the same fixing portion 112 is connected to the body 111 through a plurality of deformation portions 113, and the plurality of deformation portions 113 can bear the larger deformation and the larger stress generated by the lens assembly 120 in the vibration process, so as to ensure the stability of the whole galvanometer structure 100.

It is easy to understand that, in order to further improve the stability of the lens assembly 120 in vibration, a plurality of fixing portions 112 may be provided, and the plurality of fixing portions 112 are uniformly disposed around the body 111.

It is easily understood that the first elastic arm 1152 and the second elastic arm 1154 are both elongated, the width of the first elastic arm 1152 refers to the dimension in the width direction, the width of the second elastic arm 1154 also refers to the dimension in the width direction, the first connection portion 1162 is arc-shaped, the thickness in the radial direction is the width of the first connection portion 1162, the direction in which the second connection portion 1164 extends from the first elastic arm 1152 to the body 111 is the length direction, the direction perpendicular to the length direction is the width direction, and the width of the second connection portion 1164 refers to the dimension in the width direction. Similarly, the third connecting portion 1166 has a length direction in which the second elastic arm 1154 extends to the fixing portion 112, a width direction perpendicular to the length direction, and a width of the third connecting portion 1166 is a dimension in the width direction.

Referring to fig. 5 and fig. 6, in the present embodiment, the galvanometer structure 100 further includes a driving assembly 140, the driving assembly 140 includes a driving coil 142 and a magnet portion 144, the driving coil 142 is electrically connected to the circuit board assembly 130, the lens assembly 120 includes a fixing frame 121 and a mounting frame 122, the fixing frame 121 is fixedly connected to the body 111, the mounting frame 122 is disposed on one side of the fixing frame 121 close to the circuit board assembly 130, the magnet portion 144 is mounted on the mounting frame 122, and the fixing frame 121 and the mounting frame 122 are integrally formed.

In the present embodiment, the driving coil 142 is mounted on the circuit board assembly 130, and the magnet portion 144 is mounted on the mounting bracket 122, with the magnet acting with the driving coil 142. When the driving coil 142 is powered on, an ampere force is generated under the magnetic field of the magnet part 144, and the magnet part 144 generates displacement after receiving the counterforce of the ampere force so as to drive the fixing frame 121 to move, thereby realizing the vibration function.

In this embodiment, there are a plurality of driving assemblies 140, a plurality of mounting brackets 122, and the mounting brackets 122 are respectively mounted at different positions of the fixing frame 121. Preferably, the number of the driving assemblies 140 and the number of the mounting frames 122 are four, the driving assemblies 140 are matched with the mounting frames 122 in a one-to-one correspondence manner, the four mounting frames 122 are respectively arranged around the fixing frame 121, and the driving assemblies 140 at different positions can realize the vibration of the fixing frame 121 in different directions.

The four coils are independent coils which are dispersed in four directions of action, the up-down action and the left-right action can be respectively controlled, compared with the scheme that the coils are used for winding the lens 124, only uniform current can be conducted, the adjusting space is larger, and the yield is higher.

In the present embodiment, the fixing frame 121 and the mounting frame 122 are integrally formed, so that the production process of the whole lens assembly 120 can be reduced, and the cost can be reduced.

In the present embodiment, the fixing frame 121 has a mounting opening 123, the lens assembly 120 further includes a lens 124, the lens 124 is mounted at the mounting opening 123 by dispensing, and the mounting opening 123 is communicated with the first light hole 114 and the second light hole 131. The light source inside the electronic device passes through the first light hole 114, the second light hole 131 and the lens 124 and then exits from the galvanometer structure 100.

The body 111 is fixedly connected with the fixing frame 121, and the body 111 is an area which does not need to be deformed. After the fixing frame 121 is completely attached to the body 111, the fixing frame is fixed by screws, so that the risk of deformation of the body 111 is avoided when the lens assembly 120 vibrates.

In this embodiment, the mounting bracket 122 includes a first mounting plate 1221 and a second mounting plate 1223, the first mounting plate 1221 and the second mounting plate 1223 are spaced apart from each other, the magnet portion 144 is mounted on the first mounting plate 1221, and the second mounting plate 1223 is engaged with the driving coil 142.

First mounting panel 1221 is close to the setting of installing port 123, second mounting panel 1223 sets up the outside at mount 121, second mounting panel 1223 inserts to drive coil 142 inside, first mounting panel 1221 and second mounting panel 1223 adopt metal material to make, magnet portion 144 is installed and is made second mounting panel 1223 possess the magnetism equally on first mounting panel 1221, insert second mounting panel 1223 to inside drive coil 142, drive coil 142 produces the ampere force under the effect in magnetic field, second mounting panel 1223 receives reverse ampere force effect to appear the motion, thereby the drive is installed the vibration of lens 124 on mount 121, improve electronic equipment's formation of image picture quality.

In this embodiment, the driving coil 142 is convexly disposed on the circuit board assembly 130 and extends toward the lens assembly 120, so that the second mounting plate 1223 can be smoothly inserted into the driving coil 142, and the lens 124 is driven to vibrate by the driving coil 142.

In the present embodiment, the circuit board assembly 130 includes a supporting frame 133 and a circuit board 132, the supporting frame 133 is fixedly connected to the circuit board 132, and the supporting frame 133 is disposed between the circuit board 132 and the lens assembly 120.

In this embodiment, the support frame 133 is provided with a connection port 134, the driving coil 142 passes through the connection port 134, so that the second mounting plate 1223 can be inserted into the driving coil 142, the support frame 133 is disposed between the circuit board 132 and the elastic member 110, and the support frame 133 can be disposed while the driving coil 142 is matched with the second mounting plate 1223, so that the thickness of one support frame 133 is reduced in the entire galvanometer structure 100, thereby reducing the size of the galvanometer structure 100.

The circuit board 132 is attached to the support frame 133 by a double-sided adhesive tape, generally, the circuit board 132 is a flexible circuit board 132, and the support frame 133 can support and fix the circuit board 132.

It is understood that the circuit board 132 may be fixed on the supporting frame 133 by dispensing, besides being connected to the supporting frame 133 by a double-sided adhesive tape.

In this embodiment, the supporting frame 133 and the fixing portion 112 are fixedly connected by screws, a supporting column 135 is protruded from the supporting frame 133, and the supporting column 135 contacts with the fixing portion 112.

In this embodiment, the supporting column 135 is convexly disposed on the supporting frame 133 and contacts the fixing portion 112, so that a certain distance is formed between the fixing portion 112 and the supporting frame 133, and when the galvanometer component vibrates, a vibration space is provided for the deformation portion 113 to vibrate, thereby ensuring the vibration amplitude of the lens component 120.

In the present embodiment, the fixing portion 112 is directly fixedly connected to the supporting pillar 135.

Referring to fig. 7, the working principle of the galvanometer structure 100 provided in this embodiment is as follows: in this embodiment, the driving coil 142 is mounted on the circuit board 132 and electrically connected to the circuit board 132, the magnet portion 144 is fixed to the first mounting plate 1221, the lens 124 is first mounted on the mounting opening 123 by dispensing, the fixing frame 121 is fixedly connected to the body 111 by screws, the circuit board 132 is bonded to the support frame 133 by double-faced adhesive, the support post 135 and the fixing portion 112 are fixedly mounted by screws, and the second mounting plate 1223 is inserted into the driving coil 142, so that the mounting of the galvanometer structure 100 is completed. When the driving coil 142 is energized, the mounting frame 122 drives the lens 124 fixed on the mounting frame 121 to vibrate under the action of an ampere force, and meanwhile, the first elastic arm 1152, the second elastic arm 1154, the first connecting portion 1162, the second connecting portion 1164, and the third connecting portion 1166 deform, and most of stress is concentrated at the first connecting portion 1162, the second connecting portion 1164, and the third connecting portion 1166.

In summary, the galvanometer structure 100 provided in this embodiment, when the galvanometer structure 100 operates, the lens assembly 120 vibrates relative to the circuit board assembly 130, because the body 111 is fixedly connected to the lens assembly 120, the fixing portion 112 is fixedly connected to the circuit board assembly 130, the lens assembly 120 vibrates, the deformation portion 113 deforms, and is particularly concentrated on each connection portion, that is, the connection portion 116 is mainly concentrated on the connection portion 116, the width of the connection portion 116 is smaller than the width of the elastic arm 115, the strength of the connection portion 116 is smaller than that of the elastic arm 115, when the lens assembly 120 vibrates, the connection portion 116 is more easily deformed, the power required by the vibration of the lens assembly 120 is smaller, and therefore the service life of the deformation portion 113 is prolonged, and the stability of the vibration of the lens assembly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A galvanometer structure, comprising: the elastic element comprises a body, a fixing part and a deformation part which is connected between the body and the fixing part and can be elastically deformed, the body is fixedly connected with the lens assembly, and the fixing part is fixedly connected with the circuit board assembly;

the deformation part is provided with at least one elastic arm and a connecting part connected with the elastic arm, the connecting part is connected with the body or the fixing part, and the width of the connecting part is smaller than that of the elastic arm.

2. The galvanometer structure of claim 1, wherein the spring arm comprises a first spring arm and a second spring arm, the connecting portion comprises a first connecting portion, one end of the first connecting portion is connected with the first spring arm, the other end of the first connecting portion is connected with the second spring arm, and the width of the first connecting portion is smaller than the width of the first spring arm and the width of the second spring arm.

3. The galvanometer structure of claim 2, wherein the connecting portion further comprises a second connecting portion, one end of the second connecting portion is connected to the first resilient arm, and the other end is connected to the body, and the width of the second connecting portion is smaller than the width of the first resilient arm and the width of the body.

4. The galvanometer structure of claim 2, wherein the connecting portion further comprises a third connecting portion, one end of the third connecting portion is connected to the second elastic arm, and the other end is connected to the fixing portion, and the width of the third connecting portion is smaller than the width of the second elastic arm and the width of the fixing portion.

5. A galvanometer structure according to any of claims 1-4, characterized in that the connecting part is circular arc shaped.

6. The galvanometer structure of claim 1, further comprising a driving assembly, wherein the driving assembly comprises a driving coil and a magnet portion, the driving coil is electrically connected with the circuit board assembly, the lens assembly comprises a fixing frame and a mounting frame, the fixing frame is fixedly connected with the body, the mounting frame is arranged on one side of the fixing frame close to the circuit board assembly, the magnet portion is mounted on the mounting frame, and the fixing frame and the mounting frame are integrally formed.

7. The galvanometer structure of claim 6, wherein the mounting bracket includes a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate being spaced apart from each other, the magnet portion being mounted on the first mounting plate, and the second mounting plate being engaged with the drive coil.

8. The galvanometer structure of claim 1, wherein the circuit board assembly comprises a support frame and a circuit board, the support frame is fixedly connected with the circuit board, and the support frame is disposed between the circuit board and the lens assembly.

9. A galvanometer structure according to claim 8, wherein the support frame is provided with a support post projecting therefrom, the support post being in contact with the fixing portion.

10. An electronic device, characterized by comprising a galvanometer structure according to any one of claims 1 to 9.

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