CN215576042U - Actuating device and elastic sheet and electronic equipment thereof - Google Patents

Abstract

The utility model discloses an actuating device, an elastic sheet and electronic equipment thereof, wherein the actuating device comprises a fixed part and a movable part, the movable part can move relative to the fixed part, the elastic sheet is connected between the fixed part and the movable part and comprises a body part and a spring wire part, the body part is suitable for being fixedly connected with the movable part, the spring wire part has elasticity, one end of the spring wire part in the length direction is connected with the body part, the side wall of the other end of the spring wire part in the length direction is provided with a glue joint part, the glue joint part is suitable for being fixed with the fixed part in a glue joint mode, and the glue joint part forms a groove or a protrusion. According to the elastic sheet of the actuating device, the use reliability of the actuating device can be improved.

Description

Actuating device and elastic sheet and electronic equipment thereof

Technical Field

The utility model relates to the technical field of camera shooting, in particular to an actuating device and an elastic sheet and electronic equipment thereof.

Background

When electronic equipment such as a mobile phone takes pictures and takes pictures, a lens cannot keep absolute stability due to artificial shake or other reasons, so that focusing and light incoming amount of a camera are influenced to a certain extent, and the quality of pictures acquired by the camera is influenced; in some techniques, an anti-shake function is implemented by an actuator to compensate for a shift of a lens due to human shake or other reasons. However, in the related art, the actuating device has poor reliability, and the anti-falling performance of the actuating device cannot meet the use requirement in a certain use scene.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the spring plate of the actuating device, and the spring plate can improve the use reliability of the actuating device.

The utility model also provides an actuating device with the elastic sheet.

The utility model also provides electronic equipment with the actuating device.

According to an embodiment of the first aspect of the present invention, the spring plate of the actuator device includes a fixed member and a movable member, the movable member is movable relative to the fixed member, the spring plate is connected between the fixed member and the movable member, and includes: a body portion adapted to be fixedly coupled to the movable member; the spring wire part, the spring wire part has elasticity, just the length direction's of spring wire part one end with this body portion links to each other, the lateral wall of the length direction's of spring wire part the other end has the cementing portion, the cementing portion be suitable for with fixed part cementing is fixed, the cementing portion forms recess or arch.

According to the spring plate of the actuating device, the gluing part is arranged on the spring wire part and is formed into the groove or the protrusion, so that the gluing area between the spring wire part and the fixed part can be increased, the reliable connection between the spring plate and the fixed part is ensured, and the use reliability of the actuating device is improved.

In some embodiments, the glue portion is formed on at least one side in a width direction of the spring wire portion.

In some embodiments, the spring wire portion includes a first section and a second section, the first section being connected between the body portion and the second section, the first section having a length greater than a length of the second section, the first section having a width less than a width of the second section, the glue joint being formed on the second section.

In some embodiments, the glue joint is formed on one side of the second segment in the width direction, and the length of the glue joint is equal to the length of the second segment.

In some embodiments, the ratio of the length of the first segment to the length of the second segment ranges from 6 to 8, and the ratio of the width of the second segment to the width of the first segment ranges from 1.5 to 2.5.

In some embodiments, the body portion is formed with a central hole and a plurality of positioning holes arranged at intervals in a circumferential direction of the central hole, and the positioning holes are adapted to be disposed opposite to the positioning portions of the movable member in an axial direction of the central hole.

In some embodiments, the peripheral wall of the central hole is formed with a positioning notch, and the positioning notch is suitable for being in limit fit with a jig.

In some embodiments, the body portion is formed in a square configuration and has a first side corner, a second side corner, a third side corner and a fourth side corner, the first corner portion and the third corner portion are disposed along a diagonal of the square structure, the second corner portion and the fourth corner portion are disposed along a diagonal of the square structure, the first corner portion and the third corner portion are respectively adapted to be connected to the fixing member by a memory alloy wire, the two spring wire parts are respectively a first spring wire part and a second spring wire part, one end of the first spring wire part in the length direction is connected between the first corner part and the second corner part, the other end of the first spring wire portion in the longitudinal direction bypasses the second corner portion and extends toward the third corner portion, the second spring wire portion and the first spring wire portion are arranged in central symmetry with respect to the center of the body portion.

An actuation device according to an embodiment of the second aspect of the utility model, comprising: a fixing member; a movable part movable relative to the fixed part; the elastic sheet is the elastic sheet of the actuating device according to the embodiment of the first aspect of the utility model, and is connected between the fixed part and the movable part.

According to the actuating device provided by the embodiment of the utility model, by adopting the elastic sheet, the connection reliability of the elastic sheet and the fixed part can be improved, the actuating device is effectively ensured to be reliable to use, and the actuating device can be suitable for different application scene requirements.

An electronic device according to an embodiment of the third aspect of the utility model comprises an actuation arrangement according to an embodiment of the second aspect of the utility model described above.

According to the electronic equipment provided by the embodiment of the utility model, the actuating device is reliable to use and convenient to ensure the service life.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a spring plate of an actuator according to one embodiment of the utility model;

FIG. 2 is an enlarged view of portion A circled in FIG. 1;

FIG. 3 is a schematic view of an actuation device according to one embodiment of the present invention;

FIG. 4 is an exploded view of the actuating device shown in FIG. 3;

FIG. 5 is a schematic diagram of an electronic device according to one embodiment of the utility model.

Reference numerals:

an electronic device 200, an actuating means 100,

A spring plate 1, a central hole R, a positioning hole 1a, a positioning notch 1b,

A main body part 11, a spring wire part 12, a first spring wire part 12A, a second spring wire part 12B,

A first corner 111, a second corner 112, a third corner 113, a fourth corner 114,

A glue joint 120, a first section 121, a second section 122,

A fixing member 2, a spacer 21, a circuit board 22,

A movable part 3, a first bearing plate 31, a second bearing plate 32, a bracket 33,

A base 4, a memory alloy wire 5 and a sliding support 6.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

Next, referring to the drawings, the spring plate 1 of the actuator 100 according to the embodiment of the present invention is described.

The actuating device 100 includes a fixed component 2 and a movable component 3, and the movable component 3 is movable relative to the fixed component 2, for example, the movable component 3 can move the image sensor or the lens, so as to achieve anti-shake and ensure image quality. Wherein, shell fragment 1 is connected between fixed part 2 and movable part 3, because shell fragment 1 has certain elastic deformation ability, then when movable part 3 moves relative fixed part 2, because shell fragment 1 has the trend of resumeing original state for certain effort can be applyed to movable part 3 to shell fragment 1, for example the effort that shell fragment 1 can be applyed movable part 3 can prevent that movable part 3 from taking place the unnecessary torsion to the relatively fixed firmware of movable part 3, in order to guarantee good anti-shake effect.

As shown in fig. 1 and 2, the spring plate 1 includes a body portion 11 and a spring wire portion 12, the body portion 11 is adapted to be fixedly connected to the movable member 3, the spring wire portion 12 has elasticity such that the spring wire portion 12 is deformable, one end of the spring wire portion 12 in the length direction is connected to the body portion 11, a side wall of the other end of the spring wire portion 12 in the length direction has an adhesive portion 120, and the adhesive portion 120 is adapted to be adhesively fixed to the fixed member 2 so as to facilitate connection of the spring wire portion 12 to the fixed member 2, thereby allowing relative movement between the one end of the spring wire portion 12 in the length direction and the other end of the spring wire portion 12 in the length direction to achieve relative movement between the movable member 3 and the fixed member 2.

The gluing part 120 is formed into a groove or a protrusion, the groove can be formed by the concave part of the side wall of the spring wire part 12, the protrusion can be formed by the convex part of the side wall of the spring wire part 12, the contact area between the gluing part 120 and the glue can be increased, so that the gluing area between the spring wire part 12 and the fixing component 2 is increased, the connection reliability of the spring wire part 12 and the fixing component 2 is improved, the performances of the actuating device 100 such as falling resistance and the like are improved, the actuating device 100 is ensured to be used reliably, the actuating device 100 can be suitable for various application scenes, and the applicability of the actuating device 100 is favorably improved.

According to the spring plate 1 of the actuating device 100, the glue joint part 120 is arranged on the spring wire part 12, and the glue joint part 120 is formed into the groove or the protrusion, so that the glue joint area between the spring wire part 12 and the fixing part 2 can be increased, the reliable connection between the spring plate 1 and the fixing part 2 is ensured, and the use reliability of the actuating device 100 is improved.

Alternatively, the thickness of the adhesive joint 120 in the thickness direction (e.g., z direction in fig. 1) of the spring wire portion 12 is half of the thickness of the spring wire portion 12, and t1 is t/2 in the example of fig. 2, so that the adhesive joint area between the spring wire portion 12 and the fixing member 2 is ensured while the structural strength of the spring wire portion 12 is ensured.

In some embodiments of the present invention, as shown in fig. 1 and 2, the adhesive portion 120 is formed on at least one side of the width direction of the spring wire portion 12, and then the adhesive portion 120 is formed on one side of the width direction of the spring wire portion 12, or the adhesive portions 120 are respectively formed on two sides of the width direction of the spring wire portion 12, so as to ensure that the adhesive portions 120 have sufficient length, which is beneficial to further improve the adhesive firmness of the spring wire portion 12 and the fixing component 2.

For example, in the example of fig. 2, the glued joint 120 is formed on one side of the spring wire portion 12 in the width direction, and the glued joint 120 is formed on the side of the spring wire portion 12 that faces the body portion 11.

In some embodiments of the utility model, as shown in fig. 1, the spring wire portion 12 includes a first segment 121 and a second segment 122, the first segment 121 and the second segment 122 may be arranged along the length direction of the spring wire portion 12, the first segment 121 is connected between the body portion 11 and the second segment 122, one end of the length direction of the first segment 121 is connected with the body portion 11, the other end of the length direction of the first segment 121 is connected with the second segment 122, the length of the first segment 121 is greater than that of the second segment 122, and the width of the first segment 121 is smaller than that of the second segment 122, so that the spring wire portion 12 and the body portion 11 can keep a proper distance, and the spring wire portion 12 can have a proper elastic deformation capability to provide a sufficient acting force for the movable element 3.

The adhesive joint 120 is formed on the second section 122, so that a larger adhesive joint area can be realized between the spring wire portion 12 and the fixed component 2 through a shorter adhesive joint length, and the reliable adhesive joint of the spring wire portion 12 and the fixed component 2 is ensured.

Alternatively, as shown in fig. 1 and 2, the glue joint 120 is formed at one side in the width direction of the second segment 122, and the length of the glue joint 120 is equal to the length of the second segment 122.

Optionally, in the example of fig. 1, the ratio of the length of the first segment 121 to the length of the second segment 122 ranges from 6 to 8, and the ratio of the width of the second segment 122 to the width of the first segment 121 ranges from 1.5 to 2.5, which facilitates the reasonable arrangement of the first segment 121 and the second segment 122, so that the spring wire portion 12 can provide reasonable anti-twisting force.

In some embodiments of the present invention, as shown in fig. 1, the main body 11 is formed with a central hole R and a plurality of positioning holes 1a, the plurality of positioning holes 1a are arranged at intervals along a circumferential direction of the central hole R, and the positioning holes 1a are adapted to be arranged opposite to the positioning portions of the movable component 3 along an axial direction of the central hole R, so that, during assembling the actuator 100, the positioning holes 1a of the main body 11 and the positioning portions of the movable component 3 can be arranged opposite to each other through a jig or the like, that is, the assembling accuracy of the main body 11 and the movable component 3 can be ensured, which is beneficial to ensuring the assembling accuracy of the actuator 100 and improving the assembling efficiency.

The positioning portion of the movable member 3 may be formed as a positioning hole, but is not limited thereto.

In some embodiments of the present invention, as shown in fig. 1, a positioning notch 1b is formed on a peripheral wall of the central hole R, the positioning notch 1b may be formed by a portion of the peripheral wall of the central hole R being recessed outward along a radial direction of the central hole R, and the positioning notch 1b is adapted to be in limit fit with a jig, so that in the process of assembling the actuator 100, the jig may be fitted with the positioning notch 1b to limit the elastic sheet 1, for example, the jig may have a positioning protrusion thereon, and the positioning protrusion is in limit fit with the positioning notch 1b to ensure positioning accuracy of the elastic sheet 1 on the jig, thereby facilitating to ensure assembly accuracy and assembly efficiency of the actuator 100. For example, at least one of the fixed part 2 and the movable part 3 is also provided with a notch, the notch and the positioning notch 1b of the elastic sheet 1 are arranged just opposite to each other along the axial direction of the central hole R, and the notch is also in limit fit with a jig, so that the assembling precision of the elastic sheet 1 and the at least one of the fixed part 2 and the movable part 3 is ensured, and the assembling efficiency is improved.

It can be understood that the number, shape and arrangement of the positioning notches 1b can be specifically set according to the jig structure. For example, in the example of fig. 1, there are two positioning notches 1b, two positioning notches 1b may be oppositely arranged along the radial direction of the central hole R, and the two positioning notches 1b have the same structure. Of course, the number of the positioning notches 1b may be one, three, or more than three.

Optionally, as shown in fig. 1, the positioning notch 1b includes a first notch and a second notch, the second notch is disposed at a corner of the first notch, the second notch is communicated with the first notch, and a peripheral wall of the second notch is an arc surface, so that stress concentration at the corner of the first notch due to a "sharp corner" structure can be avoided, which is beneficial to improving bearing capacity of the peripheral edge portion of the positioning notch 1b, and reliable positioning of the elastic sheet 1 on the jig can be ensured.

In some embodiments of the present invention, as shown in fig. 1, the body portion 11 is formed in a square structure, and the body portion 11 has a first corner portion 111, a second corner portion 112, a third corner portion 113, and a fourth corner portion 114, the first corner portion 111, the second corner portion 112, the third corner portion 113, and the fourth corner portion 114 being arranged in this order in a circumferential direction of the square structure, the first corner portion 111 and the third corner portion 113 being arranged along a diagonal line of the square structure, the second corner portion 112 and the fourth corner portion 114 being arranged along a diagonal line of the square structure, the first corner portion 111 and the third corner portion 113 being adapted to be connected to the fixed member 2 via a memory alloy wire, the spring wire portions 12 being two, the two spring wire portions 12 being a first spring wire portion 12A and a second spring portion 12B, respectively, one end in a length direction of the first spring portion 12A being connected between the first corner portion 111 and the second corner portion 112, the other end in a length direction of the first spring portion 12A being extended around the second corner portion 112 and toward the third corner portion 113 When the second spring wire portion 12B and the first spring wire portion 12A are arranged in central symmetry with respect to the center of the main body portion 11, one longitudinal end of the second spring wire portion 12B is connected between the third corner portion 113 and the fourth corner portion 114, and the other longitudinal end of the second spring wire portion 12B extends around the fourth corner portion 114 and toward the first corner portion 111.

It will be appreciated that when the leaf spring 1 is used to actuate the device 100, the body portion 11 may move relative to the wire portion 12, and the body portion 11 is always spaced from the wire portion 12 such that movement of the body portion 11 does not affect deformation of the wire portion 12, to ensure that the wire portion 12 provides sufficient force to the body portion 11 to avoid twisting of the body portion 11 about the axial direction (e.g., the z direction in fig. 1 and 3) of the actuation device 100 such that the body portion 11 translates in the x and y directions relative to the wire portion 12.

The actuating device 100 according to the embodiment of the second aspect of the utility model comprises a fixed part 2, a movable part 3 and a spring plate 1, wherein the movable part 3 is movable relative to the fixed part 2, and the spring plate 1 is connected between the fixed part 2 and the movable part 3. The elastic sheet 1 is the elastic sheet 1 of the actuating device 100 according to the above first aspect of the present invention.

According to the actuating device 100 provided by the embodiment of the utility model, by adopting the elastic sheet 1, the connection reliability of the elastic sheet 1 and the fixing part 2 can be improved, the actuating device 100 is effectively ensured to be reliable to use, and the actuating device 100 can be suitable for different application scene requirements.

In some embodiments, as shown in fig. 3 and 4, the actuator 100 is an anti-shake actuator, the actuator 100 may include memory alloy wires 5, two ends of the length of each memory alloy wire 5 may be disposed in a staggered manner along the direction of the optical axis of the lens, the fixed part 2 has an input end electrically connected to the memory alloy wire 5, the movable part 3 has an output end electrically connected to the memory alloy wire 5, so that two ends of the length of each memory alloy wire 5 are electrically connected to the movable part 3 and the fixed part 2, respectively, the control chip energizes each memory alloy wire 5 through the input end and the output end, when the memory alloy wires 5 contract due to heat, the movable part 3 may be pulled to move relative to the fixed part 2, so the control chip may control at least one of energization time, energization current, and the like input to the memory alloy wires 5 by the power supply circuit to change the temperature of the memory alloy wires 5, thereby changing the deformation or length of the memory alloy wire 5 and further controlling the movement of the lens or the image sensor which is directly or indirectly fixed on the movable part 3, so that the lens or the image sensor moves to a specified position to compensate the offset caused by shaking due to human factors and the like.

Therefore, the actuating device 100 can keep the lens stable when being used for taking pictures and shooting images, thereby improving the quality of acquired images.

For example, in the example of fig. 4, the outer contour of the movable part 3 is formed into a substantially square structure, the movable part 3 has two output groups thereon, the two output groups are arranged at intervals along the diagonal extension direction of the movable part 3, each output group includes two output ends arranged at intervals, the outer contour of the fixed part 2 is formed into a substantially square structure, the fixed part 2 has two input groups thereon, the two input groups are arranged at intervals along the diagonal extension direction of the fixed part 2, each input group includes two input ends arranged at intervals; when the movable part 3 is assembled with the fixed part 2, the two input groups and the two output groups can be respectively positioned at four corners of the movable part 3 corresponding to the square structure; the number of the memory alloy wires 5 is four, and each memory alloy wire 5 is connected with the adjacent input end and the output end.

The fixing part 2 may include a gasket 21 and a circuit board 22, the gasket 21 is directly glued to the base 4 of the actuating device 100, the circuit board 22 is fixed to a side of the gasket 21 away from the base 4, and the circuit board 22 may be electrically connected to the memory alloy wire 5 so as to provide an electrical signal to the memory alloy wire 5; the two ends of the length of each spring wire portion 12 are respectively connected with the body portion 11 and the fixed component 2, the body portion 11 is fixedly connected with the movable component 3, and when the memory alloy wire 5 drives the movable component 3 to move relative to the fixed component 2, the spring wire portions 12 can apply certain acting force to the movable component 3, so that the movable component 3 is prevented from twisting around the axial direction (for example, the z direction in fig. 3) of the actuating device 100, and the image quality is further ensured.

As shown in fig. 4, the actuator 100 further includes a sliding support 6, the sliding support 6 is disposed between the fixed part 2 and the spring plate 1, for example, the sliding support 6 is disposed between the pad 21 and the body 11, the sliding support 6 can support the body 11, so as to reduce wear of the body 11 and the fixed part 2, and a side surface of the sliding support 6 opposite to the spring plate 1 can be coated with a lubricant to reduce a movement resistance of the body 11 and improve a movement smoothness of the movable part 3. The movable member 3 includes a first bearing plate 31, a second bearing plate 32 and a bracket 33, the first bearing plate 31 is fixedly connected to the second bearing plate 32 and the bracket 33, respectively, and the second bearing plate 33 is fixedly connected to the main body 11. Wherein the lens or the image sensor may be fixed on the bracket 33.

An electronic device 200 according to an embodiment of the third aspect of the utility model, as shown in fig. 5, comprises an actuation means 100 according to the above-described second aspect of the utility model.

According to the electronic device 200 of the embodiment of the utility model, by adopting the actuating device 100, the use is reliable, and the service life is convenient to guarantee.

Furthermore, it should be noted that "electronic device 200" includes, but is not limited to, devices configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network and/or via a Wireless interface, for example, with respect to a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal. Examples of electronic device 200 include, but are not limited to, a satellite or cellular telephone; personal communications systems, PCS terminals, which may combine cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver.

The electronic device 200 may be various devices capable of acquiring data from the outside and processing the data, or the electronic device 200 may be various devices which have a built-in battery and can acquire current from the outside to charge the battery, such as a mobile phone, a tablet computer, a computing device, an information display device, or the like. The mobile phone is only an example of the electronic device 200, and the application is not particularly limited, and the application may be applied to the electronic device 200 such as a mobile phone, a tablet computer, a camera, and the like, and the application is not limited thereto.

Other configurations and operations of the electronic device 200 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A striking plate (1) of an actuating device (100), characterized in that said actuating device (100) comprises a fixed part (2) and a movable part (3), said movable part (3) being movable with respect to said fixed part (2), said striking plate (1) being connected between said fixed part (2) and said movable part (3) and comprising:

a body portion (11), said body portion (11) being adapted to be fixedly connected to said movable part (3);

the spring wire part (12), the spring wire part (12) has elasticity, and the one end of the length direction of spring wire part (12) with body portion (11) link to each other, the lateral wall of the other end of the length direction of spring wire part (12) has glued portion (120), glued portion (120) be suitable for with fixed part (2) cementing is fixed, glued portion (120) form into recess or arch.

2. The dome (1) of an actuating device (100) according to claim 1, characterized in that the glue joint (120) is formed on at least one side in the width direction of the spring wire portion (12).

3. The dome (1) of an actuating device (100) according to claim 1, characterized in that the wire portion (12) comprises a first section (121) and a second section (122), the first section (121) being connected between the body portion (11) and the second section (122), the length of the first section (121) being greater than the length of the second section (122), the width of the first section (121) being smaller than the width of the second section (122), the glue joint (120) being formed on the second section (122).

4. Shrapnel (1) of an actuation device (100) according to claim 3, characterized in that the glue joint (120) is formed at one side in the width direction of the second section (122), and the length of the glue joint (120) is equal to the length of the second section (122).

5. Shrapnel (1) of an actuation device (100) according to claim 3, characterized in that the ratio of the length of the first section (121) to the length of the second section (122) ranges from 6 to 8, the ratio of the width of the second section (122) to the width of the first section (121) ranges from 1.5 to 2.5.

6. The dome (1) of an actuating device (100) according to claim 1, wherein the body portion (11) is formed with a central hole (R) and positioning holes (1a), the positioning holes (1a) being plural and arranged at intervals along a circumferential direction of the central hole (R), the positioning holes (1a) being adapted to be disposed opposite to a positioning portion of the movable member (3) along an axial direction of the central hole (R).

7. Shrapnel (1) of an actuating device (100) according to claim 6, characterized in that the peripheral wall of the central hole (R) is formed with a positioning notch (1b), the positioning notch (1b) being adapted to be in a limit fit with a jig.

8. The leaf spring (1) of an actuator device (100) according to any one of claims 1-7, wherein the body portion (11) is formed in a square structure and has a first corner portion (111), a second corner portion (112), a third corner portion (113) and a fourth corner portion (114), the first corner portion (111) and the third corner portion (113) are arranged along a diagonal of the square structure, the second corner portion (112) and the fourth corner portion (114) are arranged along a diagonal of the square structure, the first corner portion (111) and the third corner portion (113) are respectively adapted to be connected to the fixed member (2) through a memory alloy wire, the wire portions (12) are two and respectively a first wire portion (12A) and a second wire portion (12B), and one end of the first wire portion (12A) in a length direction is connected to one of the first corner portion (111) and the second corner portion (112) The other end of the first spring wire portion (12A) in the length direction bypasses the second corner portion (112) and extends toward the third corner portion (113), and the second spring wire portion (12B) and the first spring wire portion (12A) are arranged in central symmetry with respect to the center of the body portion (11).

9. An actuation device (100), comprising:

a fixing member (2);

a movable part (3), said movable part (3) being movable relative to said fixed part (2);

spring plate (1), the spring plate (1) being a spring plate (1) of an actuation device (100) according to any one of claims 1 to 8 and being connected between the fixed part (2) and the movable part (3).

10. An electronic device (200), characterized in that it comprises an actuation device (100) according to claim 9.

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