CN111722521A

CN111722521A - Driving mechanism, functional module assembly and electronic equipment

Info

Publication number: CN111722521A
Application number: CN202010547965.8A
Authority: CN
Inventors: 蔡程
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2020-09-29
Also published as: WO2021254312A1

Abstract

The application discloses actuating mechanism, functional module subassembly and electronic equipment, actuating mechanism are used for electronic equipment, and it includes: a cam member having at least one pair of corresponding distal and proximal ends distributed along a circumferential direction thereof, each pair of distal and proximal ends being located on a straight line passing through a center of rotation of the cam member; the first pushing component and the second pushing component are positioned between the first pushing component and the second pushing component, and the first pushing component and the second pushing component are in contact fit with the outer contour surface of the cam component; and the power component is in driving connection with the cam component and drives the cam component to rotate so that the rotation center and the first pushing component move linearly relatively in a reciprocating manner in the direction of a connecting line between the first pushing component and the second pushing component. The function module is moved out of the electronic equipment when in use and is moved into the electronic equipment when not in use, so that the function module does not occupy the screen space, and the screen occupation ratio is improved.

Description

Driving mechanism, functional module assembly and electronic equipment

Technical Field

The present disclosure relates to electronic devices, and particularly to a driving mechanism. The application also relates to a functional module assembly and an electronic device comprising the driving mechanism.

Background

Along with the continuous increase of user's demand, electronic equipment its function is more and more abundant, specifically realizes through each functional module, and some functional modules have invaded electronic equipment's screen space when the overall arrangement, lead to that electronic equipment is great, the screen accounts for than diminishes. Therefore, how to satisfy the functional requirements and consider the size, layout or screen ratio of the electronic device becomes a problem to be solved urgently by those skilled in the art.

Disclosure of Invention

In view of this, an object of the present application is to provide a driving mechanism, so as to enable a functional module to be moved out of an electronic device when in use and moved into the electronic device when not in use, thereby increasing a screen occupation ratio. Another objective of the present application is to provide a functional module assembly and an electronic device including the driving mechanism, so as to enable the functional module to move out of the electronic device when in use and move into the electronic device when not in use, thereby increasing the screen occupation ratio.

In order to achieve the purpose, the application provides the following technical scheme:

a drive mechanism for an electronic device, comprising:

a cam member having at least one pair of corresponding distal and proximal ends distributed circumferentially thereof, each pair of the distal and proximal ends being located on a straight line passing through a center of rotation of the cam member;

a first urging member and a second urging member, a center of rotation of the cam member being located between the first urging member and the second urging member which are stationary relative to each other, the first urging member and the second urging member each being in contact fit with an outer contour surface of the cam member;

and the power component is in driving connection with the cam component and drives the cam component to rotate, so that the rotating center and the first pushing component relatively move in a reciprocating straight line in the direction of a connecting line between the first pushing component and the second pushing component.

Preferably, in the above-described drive mechanism, the power member drives the cam member to rotate in a single direction.

Preferably, in the above-described drive mechanism, a distance between two intersection points at which an outer contour line of the cam member intersects with any straight line passing through the rotation center is equal to a distance between the first urging member and the second urging member.

Preferably, in the above-described drive mechanism, a linear moving member that moves in a direction parallel to a line between the first pushing member and the second pushing member is further included; the first pushing member and the second pushing member are fixed to the linearly moving member, and a rotation axis of the cam member is fixed.

Preferably, in the above-described drive mechanism, a linear moving member that moves in a direction parallel to a line between the first pushing member and the second pushing member is further included; the cam component is connected with the linear moving component in a rotating mode, and the positions of the first pushing component and the second pushing component are fixed.

Preferably, in the above driving mechanism, the driving mechanism further includes a linear guide member, which is in guide engagement with the linear moving member, for guiding the linear moving member to move in a linear direction.

Preferably, in the above-described driving mechanism, the linear guide member includes a first guide rail and a second guide rail, and the first guide rail and the second guide rail are respectively in guiding engagement with both ends of the linear moving member.

Preferably, in the above-described drive mechanism, each of the first urging member and the second urging member has an arc-shaped mating surface which is slidably fitted to an outer contour surface of the cam member.

Preferably, in the above-described drive mechanism, the cam member has an odd number of pairs of the distal end and the proximal end distributed along the circumferential direction thereof, and the distal end and the proximal end are arranged alternately and uniformly in the circumferential direction of the cam member.

Preferably, in the above-described drive mechanism, the cam member has three pairs of the distal end and the proximal end distributed along the circumferential direction thereof, and the distal end and the proximal end are arranged alternately and uniformly in the circumferential direction of the cam member, and an arrangement angle between adjacent ones of the distal end and the proximal end is 60 °.

The application also provides a functional module assembly, which comprises a functional module and a driving mechanism, wherein the driving mechanism is any one of the driving mechanism, the functional module is in driving connection with the driving mechanism, and the driving mechanism drives the functional module to reciprocate along a straight line.

Preferably, in the above functional module assembly, the functional module is one or more of a camera module, a speaker module and an earphone module.

The application also provides electronic equipment, including equipment body and functional module, the equipment body is provided with the opening, its characterized in that still includes as above arbitrary actuating mechanism, actuating mechanism set up in the equipment body, actuating mechanism with the functional module drive is connected, the actuating mechanism drive the functional module passes through the opening shifts out or immigrates along the straight line the equipment body.

Preferably, in the above electronic device, the power component of the driving mechanism is an ultrasonic motor, and the ultrasonic motor is in driving connection with the rotating shaft of the cam component of the driving mechanism.

Compared with the prior art, the beneficial effects of this application are:

the driving mechanism comprises a cam part, a first pushing part, a second pushing part and a power part, wherein the cam part is provided with at least one pair of corresponding far-end and near-end distributed along the circumferential direction of the cam part, and each pair of far-end and near-end is positioned on a straight line passing through a rotation center; the rotating center of the cam part is located between the first pushing part and the second pushing part, the first pushing part and the second pushing part are in contact fit with the outer contour surface of the cam part, the power part is in driving connection with the cam part, and the power part drives the cam part to rotate, so that the rotating center of the cam part and the first pushing part move linearly relatively in a reciprocating mode in the connecting line direction between the first pushing part and the second pushing part.

When the power component is used in the electronic equipment, the functional module can be taken out of the electronic equipment when in use, when the electronic equipment is not used, the functional module is moved into the electronic equipment, so that the functional module does not occupy the screen space of the electronic equipment, and the screen occupation ratio is improved.

The functional module subassembly and the electronic equipment provided by the application adopt the driving mechanism in the application, so that the function module can be moved out of the electronic equipment when in use, and can be moved into the electronic equipment when not in use, the screen space of the electronic equipment is not occupied, and the screen occupation ratio is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a functional module assembly according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a cam component of a driving mechanism provided in an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a power component of a drive mechanism according to an embodiment of the present disclosure;

fig. 5 is a schematic working diagram of a process of removing a function module of an electronic device according to an embodiment of the present disclosure;

FIG. 6 is an operational schematic view of the leftward driving movement of the drive mechanism of FIG. 5;

fig. 7 is a schematic working diagram of a function module moving-in process of an electronic device according to an embodiment of the present application;

fig. 8 is an operational view of the rightward driving movement of the driving mechanism in fig. 7.

Wherein, 1 is the equipment body, 11 is the watchband, 12 is the dial, 2 is the function module, 3 is the actuating mechanism, 31 is the first guide rail, 32 is the cam part, 321 is the distal end, 322 is the proximal end, 323 is the pivot, 33 is the second guide rail, 34 is the linear motion part, 35 is the second pushing part, 36 is the first pushing part, 4 is the power part, 41 is the wear-resisting material layer, 42 is the elastomer, 43 is piezoceramics, 44 is the power supply circuit.

Detailed Description

The application provides a driving mechanism, realized that functional module moves out the electronic equipment outside when using, when not using, move into inside the electronic equipment, do not occupy electronic equipment's screen space, improve the screen and account for than.

The application also provides a functional module assembly and electronic equipment comprising the driving mechanism, so that the functional module is moved out of the electronic equipment when in use and is moved into the electronic equipment when not in use, the screen space of the electronic equipment is not occupied, and the screen occupation ratio is improved.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 2, 3, 5-8, the embodiment of the present application provides a driving mechanism 3, which is applied to an electronic device, the driving mechanism 3 includes a cam component 32, a first pushing component 36, a second pushing component 35 and a power component 4, the cam component 32 has at least one pair of corresponding distal end 321 and proximal end 322 distributed along the circumferential direction thereof, and specifically may be one, two, three, four, five or more pairs, where the distance from the distal end 321 to the rotation center of the cam component 32 is greater than the distance from the proximal end 322 to the rotation center, the distal end 321 is the end of the outer contour surface of the cam component 32 farthest from the rotation center, the proximal end 322 is the end of the outer contour surface of the cam component 32 closest to the rotation center, each pair of the distal end 321 and the proximal end 322 is located on a straight line passing through the rotation center, and each pair of the distal end 321 and the proximal end 322 is located on two sides of the rotation center respectively; the first pushing member 36 and the second pushing member 35 are stationary relative to each other, that is, the first pushing member 36 and the second pushing member 35 are kept at a constant interval, the arrangement orientation of the first pushing member 36 and the second pushing member 35 is not limited in the figures, and the other way around, the rotation center of the cam member 32 is located between the first pushing member 36 and the second pushing member 35, and both the first pushing member 36 and the second pushing member 35 are in contact fit with the outer contour surface of the cam member 32; the power member 4 is drivingly connected to the cam member 32, and the power member 4 drives the cam member 32 to rotate, so that the rotation center of the cam member 32 and the first pushing member 36 (since the first pushing member 36 and the second pushing member 35 are relatively stationary, it can also be said that the rotation center of the cam member 32 and the second pushing member 35 are relatively linearly moved back and forth in the direction of the line connecting the first pushing member 36 and the second pushing member 35). The first and second urging

members

36 and 35 linearly reciprocate with respect to the cam member 32 if the rotation center of the cam member 32 is fixed, and the cam member 32 linearly reciprocate with respect to the first and

second urging members

36 and 35 if the first and second urging

members

36 and 35 are fixed.

The working principle and the working process of the driving mechanism 3 are as follows: in operation, the power component 4 drives the cam component 32 to rotate, when the cam component 32 rotates from the proximal end 322 to the first pushing component 36 until the distal end 321 contacts the first pushing component 36, the rotation center of the cam component 32 and the first pushing component 36 move linearly in the direction of the connection line between the first pushing component 36 and the second pushing component 35, the distance between the rotation center and the first pushing component 36 is increased, and the distance between the rotation center and the second pushing component 35 is shortened; when the cam member 32 continues to rotate in the same direction or in the opposite direction, the cam member 32 rotates from the contact between the distal end 321 and the first pushing member 36 to the contact between the proximal end 322 and the first pushing member 36, in this process, the cam member 32 rotates from the contact between the proximal end 322 and the second pushing member 35 to the contact between the distal end 321 and the second pushing member 35, the rotation center of the cam member 32 and the first pushing member 36 move linearly in the direction of the connection line between the first pushing member 36 and the second pushing member 35, the distance between the rotation center and the second pushing member 35 increases, and the distance between the rotation center and the first pushing member 36 decreases. In this way, as the cam member 32 continues to rotate, the distal end 321 of the cam member 32 can alternately push and contact with the first pushing member 36 and the second pushing member 35, so that the rotation center of the cam member 32 and the first pushing member 36 perform relative reciprocating linear movement in the direction of the line between the first pushing member 356 and the second pushing member 35, and the input motion of the rotation of the cam member 32 is converted into the output motion of the reciprocating linear movement. When the function module 2 is applied to the electronic equipment, the function module 2 can be moved out of the electronic equipment when in use and moved into the electronic equipment when not in use, so that the function module 2 does not occupy the screen space of the electronic equipment, and the screen occupation ratio is improved. The size, the layout or the screen occupation ratio of the electronic equipment are considered while the functional requirements are met.

Further, in the present embodiment, the power member 4 drives the cam member 32 to rotate in a single direction. Since the driving mechanism for moving the functional module out of and into the electronic device in the prior art is usually a linear driving mechanism, that is, the functional module is moved out and moved in through the motor and the transmission mechanism, and the switching of the movement in and out is realized through the change of the rotation direction of the motor. When a user mistakenly calls out the functional module and emergently closes the functional module, the functional module is quickly moved in and out, the motor needs to be quickly converted into a forward rotation, emergency stop and reverse rotation process, the service life of the motor is influenced due to the fact that a stopping step is additionally arranged in the middle of the motor, and the movement out and movement in of the functional module is not smooth enough. Therefore, the power member 4 of the present invention drives the cam member 32 to rotate in a single direction, and the output of the reciprocating linear motion can be also realized.

Specifically, when the cam member 32 is driven by the power member 4 to rotate in a single direction, in the process that the cam member 32 rotates from the proximal end 322 to the first pushing member 36 in a contact manner until the distal end 321 contacts the first pushing member 36, the rotation center of the cam member 32 and the first pushing member 36 move linearly relative to each other in the direction of the line between the first pushing member 36 and the second pushing member 35, the distance between the rotation center and the first pushing member 36 is increased, and the distance between the rotation center and the second pushing member 35 is shortened; when the cam member 32 continues to rotate in the same direction, the cam member 32 rotates from the contact between the distal end 321 and the first pushing member 36 to the contact between the proximal end 322 and the first pushing member 36, in this process, the cam member 32 rotates from the contact between the proximal end 322 and the second pushing member 35 to the contact between the distal end 321 and the second pushing member 35, the rotation center of the cam member 32 and the first pushing member 36 move linearly in the direction of the connection line between the first pushing member 36 and the second pushing member 35, the distance between the rotation center and the second pushing member 35 increases, and the distance between the rotation center and the first pushing member 36 decreases. In this way, as the cam member 32 continues to rotate, the distal end 321 of the cam member 32 can alternately come into pushing contact with the first pushing member 36 and the second pushing member 35, so that the rotation center of the cam member 32 and the first pushing member 36 perform relative reciprocating linear movement in the direction of the line between the first pushing member 356 and the second pushing member 35, and thus the input motion of the cam member 32 rotating in a single direction is converted into the output motion of the reciprocating linear movement.

Therefore, in the case that the driving mechanism performs rapid linear reciprocating movement, there is no need to stop the cam member 32 suddenly in the middle, and there is no need to change the rotating direction of the cam member 32, so that when the power member 4 drives the driving mechanism by using the motor, the service life of the motor is prolonged, and the reciprocating movement of the driving mechanism is smooth.

Further, in the present embodiment, the distance between two intersection points where the outer contour line of the cam member 32 intersects any straight line passing through the rotation center is equal to the distance between the first pushing member 36 and the second pushing member 35, and thus, any rotation angle of the outer contour line of the cam member 32 can be kept in contact fit with the first pushing member 36 and the second pushing member 35. Therefore, the cam component 32 is more continuously and smoothly matched with the first pushing component 36 and the second pushing component 35, and the situation that the cam component is separated from the contact fit and the action is intermittently stopped does not exist.

As shown in fig. 2, in the present embodiment, the drive mechanism 3 further includes a linearly moving member 34, the linearly moving member 34 moving in a direction parallel to a line between the first pushing member 36 and the second pushing member 35; the first urging member 36 and the second urging member 35 are fixed to the linearly moving member 34, and the rotation axis of the cam member 32 is fixed. The arrangement is that the linear moving component 34 fixes the first pushing component 36 and the second pushing component 35 in position, the relative positions are kept unchanged, and the linear moving component 34, the first pushing component 36 and the second pushing component 35 can move linearly as a whole and serve as a power output end; the cam member 32 is only rotatable and cannot be linearly moved, and therefore, the single-direction rotation of the cam member 32 can drive the first and

second urging members

36 and 35 to reciprocate in the linear direction and output the linear movement by the linear movement member 34.

Of course, the linear moving member 34 may not be provided, and the first pushing member 36 and the second pushing member 35 may be directly connected to the external member as power output terminals.

The present embodiment provides another driving mechanism 3, the driving mechanism 3 also includes a linearly moving member 34, the linearly moving member 34 moves in a direction parallel to a line between a first pushing member 36 and a second pushing member 35; the cam member 32 is rotatably connected to the linearly moving member 34, and the positions of the first urging member 36 and the second urging member 35 are fixed. With this arrangement, the cam member 32 and the linearly moving member 34 move as a whole in the linear direction, and at the same time, the cam member 32 can rotate on the linearly moving member 34, and during the rotation of the cam member 32, the cam member 32 cooperates with the first pushing member 36 and the second pushing member 35 which are not fixed, so that the cam member 32 and the linearly moving member 34 move together in the linear direction with respect to the first pushing member 36 and the second pushing member 35, and the linearly moving member 34 outputs the linear movement as the power output end.

Of course, the cam member 32 may be directly connected to an external member without providing the linear moving member 34, and may output the linear motion.

Further, in the present embodiment, the driving mechanism 3 further includes a linear guide member that is in guiding engagement with the linear moving member 34 for guiding the linear moving member 34 to move in the linear direction. The linear guide member allows only the linear moving member 34 to move in the linear direction, and cannot rotate. Thereby ensuring that the rotation of the cam member 32 is converted into the linear movement of the linearly moving member 34.

Specifically, in the present embodiment, the linear guide member includes the first guide rail 31 and the second guide rail 33, and the first guide rail 31 and the second guide rail 33 are respectively in guide engagement with both ends of the linear moving member 34. The linear moving member 34 is preferably a rod-like member that moves linearly in the longitudinal direction thereof, and the first guide rail 31 and the second guide rail 33 are respectively in guide engagement with both ends of the rod-like member, allowing only the rod-like member to move linearly and not allowing the rod-like member to rotate about the axis thereof or the axis of rotation of the cam member 32. The linear moving member 34 can be smoothly guided by the first guide rail 31 and the second guide rail 33, and of course, the linear guide member may be one guide rail or more. Or the linear guide member is a guide groove structure, and the linear moving member 34 is provided with a guide block which is matched with the guide groove structure for guiding, so that the linear guide can be realized, and the linear guide is not limited to the structural form exemplified in the embodiment.

In the present embodiment, each of the first pushing member 36 and the second pushing member 35 has an arc-shaped mating surface which is in sliding fit with the cam surface of the cam member 32, so that when the cam surface of the cam member 32 is in pushing contact with the first pushing member 36 and the second pushing member 35, the rotation of the cam member 32 can be smoothly converted into linear movement, and the occurrence of the locking phenomenon can be avoided. The first 36 and second 35 pushing members are preferably cylindrical rods parallel to the axis of rotation of the cam member 32.

Preferably, in the present embodiment, the cam member 32 is provided with odd pairs of the distal end 321 and the proximal end 322 along the circumferential direction thereof, that is, the pairs of the distal end 321 and the proximal end 322 are one pair, three pairs, five pairs, seven pairs, and the distal end 321 and the proximal end 322 of the cam member 32 are uniformly and alternately arranged along the circumferential direction. Taking three pairs of the distal ends 321 and the proximal ends 322 as an example, as shown in fig. 3, the three distal ends 321 and the three proximal ends 322 are alternately and uniformly arranged, an included angle between adjacent distal ends 321 and proximal ends 322 is 60 °, a triangular gear-like structure is formed, and the direction is changed by linear movement every time the cam member 32 rotates 60 °. For a cam member 32 having only one pair of distal 321 and proximal 322 ends, the linear movement changes direction once every 180 ° of rotation of the cam member 32. For a cam member 32 having five pairs of distal 321 and proximal 322 ends, the linear movement changes direction once per 36 ° of rotation of the cam member 32. The cam member 32 preferably has a structure with three pairs of the distal end 321 and the proximal end 322, and is simple in structure, and the rotation angle and the time required for changing the direction of linear movement of the cam member 32 are appropriate. By uniformly arranging the odd-numbered pairs of the distal end 321 and the proximal end 322, regular and periodic linear reciprocating movement can be realized.

Of course, the cam member 32 may be provided with other pairs of the distal ends 321 and the proximal ends 322, but, for the cam member 32 having the even-numbered pairs of the distal ends 321 and the proximal ends 322, in order to make each pair of the distal ends 321 and the proximal ends 322 to be located on the same straight line passing through the rotation center of the cam member 32, the even-numbered pairs of the distal ends 321 and the proximal ends 322 cannot be uniformly distributed in the circumferential direction, and thus, although the straight reciprocating movement can be achieved, the regular and periodic straight reciprocating movement cannot be achieved.

As shown in fig. 2, based on the driving mechanism described in any of the above embodiments, an embodiment of the present application further provides a functional module assembly, which includes a functional module 2 and a driving mechanism, where the driving mechanism is the driving mechanism 3 described in any of the above embodiments, the functional module 2 is in driving connection with the driving mechanism 3, and the driving mechanism 3 drives the functional module 2 to move linearly and reciprocally.

Specifically, when the first urging member 36 and the second urging member 35 are linearly moved while the rotational axis of the cam member 32 is fixed, the function module 2 is linearly moved together with the first urging member 36 and the second urging member 35.

In operation, under the rotation of the cam member 32 driven by the power member 4, the cam member 32 cooperates with the first pushing member 36 and the second pushing member 35 to drive the first pushing member 36, the second pushing member 35 and the functional module 2 to move linearly and reciprocally together.

Alternatively, when the first urging member 36 and the second urging member 35 are stationary and the rotation axis of the cam member 32 moves linearly, the function module 2 moves linearly together with the cam member 32.

In operation, under the rotation of the cam member 32 driven by the power member 4, the cam member 32 is engaged with the first urging member 36 and the second urging member 35, and the cam member 32 and the function module 2 are reciprocally moved in a straight line in the reverse direction.

Therefore, the functional module 2 is driven by the driving mechanism 3 to perform linear reciprocating movement, so that the functional module 2 is moved out of the electronic equipment when in use and moved into the electronic equipment when not in use, the functional module 1 does not occupy the screen space of the electronic equipment, and the screen occupation ratio is improved.

Further, the power component 4 drives the cam component 32 to rotate along a single direction, so that under the condition that the functional module 2 is driven by the driving mechanism 3 to perform rapid linear reciprocating movement, the middle scram cam component 32 is not needed, the rotating direction of the cam component 32 is not needed to be changed, the reciprocating movement of the driving mechanism 3 is smooth, and when the power component 4 is driven by the motor to the driving mechanism 3, the motor is not needed to be scram and reversed, so that the service life of the motor is prolonged.

In the present embodiment, the functional module 2 is one or more combinations of a camera module, a speaker module and an earphone module. I.e. functional modules 2 that can be moved out and in an electronic device, can be provided with the drive mechanism 3 in the present application.

As shown in fig. 1 and fig. 5 to fig. 8, based on the driving mechanism described in any of the above embodiments, an electronic device is further provided in the embodiments of the present application, and includes a device body 1 and a function module 2, where the device body 1 is provided with an opening, the electronic device further includes a driving mechanism 3 as described in any of the above embodiments, the driving mechanism 3 is disposed in the device body 1, the driving mechanism 3 is in driving connection with the function module 2, and the driving mechanism 3 drives the function module 2 to move out of or into the device body 1 along a straight line.

Specifically, with a structure in which the first pushing member 36 and the second pushing member 35 are linearly movable, but the cam member 32 is not linearly movable, the function module 2 can be directly fixedly connected with the first pushing member 36 and the second pushing member 35, and the function module 2 can be linearly guided to move in the apparatus body 1; alternatively, a linear moving member 34 is provided, one end of the linear moving member 34 is fixed to the function module 2, a first pushing member 36 and a second pushing member 35 are fixed to the linear moving member 34, and the linear moving member 34 moves linearly in the apparatus body 1.

The moving out and moving in operation of the functional module 2 of the electronic device is as follows: in operation, as shown in fig. 5 and 6, during the process of removing the functional module 2 from the apparatus body 1, the cam member 32 is driven by the power member 4 to rotate, which shows that the cam member 32 rotates clockwise, of course, it is also possible to rotate counterclockwise, the distal end 321 and the proximal end 322 of the cam member 32 are engaged with the first urging member 36 and the second urging member 35, the distal end 321 urges the first urging member 36 to move in a linear direction toward the outside of the apparatus body 1, when the apex of the distal end 321 contacts the first urging member 36 and the apex of the proximal end 322 contacts the second urging member 35, as exemplified by three pairs of the distal end 321 and the proximal end 322, the cam member 32 is rotated by 60 °, at which time the function module 2 is moved out to the maximum moved-out position of the apparatus body 1, and the power member 4 can stop driving the cam member 32 to rotate, and the movement of the function module 2 out of the apparatus body 1 is realized.

As shown in fig. 7 and 8, in the process of moving the functional module 2 into the apparatus body 1, the power component 4 continues to drive the cam component 32 to rotate in the same direction or rotate in the opposite direction, the distal end 321 of the cam component 32 pushes the second pushing component 35 to move in the linear direction toward the inside of the apparatus body 1, when the vertex of the distal end 321 contacts with the second pushing component 35 and the vertex of the proximal end 322 contacts with the first pushing component 36, taking the three pairs of the distal end 321 and the proximal end 322 as an example, the cam component 32 rotates 60 ° again or rotates 60 ° in the opposite direction, at this time, the functional module 2 moves to the maximum moving-in position of the apparatus body 1, i.e., the reset position, and the power component 4 stops driving the cam component to rotate, so that the functional module 2 moves into the apparatus body 1.

For the structure that the first pushing component 36 and the second pushing component 35 are fixed and the cam component 32 can move linearly, the first pushing component 36 and the second pushing component 35 are fixedly arranged on the equipment body 1, the cam component 32 can be connected to the functional module 2 in a rotating way, and the functional module 2 can move linearly and guided in the equipment body 1; alternatively, a linear moving member 34 is provided, one end of the linear moving member 34 is fixed to the function module 2, the cam member 32 is pivotally connected to the linear moving member 34, and the linear moving member 34 linearly moves in the apparatus body 1.

The moving out and moving in operation of the functional module 2 of the electronic device is as follows: in operation, as shown in fig. 5 and 6, in the process of moving the functional module 2 out of the apparatus body 1, the cam member 32 is driven by the power member 4 to rotate, the cam member 32 is shown to rotate clockwise in the figure, of course, the cam member 32 may rotate counterclockwise, the distal end 321 and the proximal end 322 of the cam member 32 are matched with the first pushing member 36 and the second pushing member 35, the distal end 321 is in pushing contact with the second pushing member 35, since the second pushing member 35 is fixed, the cam member 32 and the linear moving member 34 are pushed in reverse direction to move towards the outside of the apparatus body 1, when the vertex of the distal end 321 is in contact with the second pushing member 35 and the vertex of the proximal end 322 is in contact with the first pushing member 35, as an example, the cam member 32 rotates by 60 °, and at this time, the functional module 2 moves out to the maximum moving-out position of the apparatus body 1, the power member 4 can stop driving the cam member 32 to rotate, and the functional module 2 is moved out of the apparatus body 1.

As shown in fig. 7 and 8, during the movement of the functional module 2 into the apparatus body 1, the power member 4 continues to drive the cam member 32 to rotate in the same direction or in the reverse direction, the distal end 321 of the cam member 32 comes into pushing contact with the first pushing member 36, since the first urging member 36 is fixed, the reverse urging cam member 32 and the linearly moving member 34 are moved in the linear direction toward the inside of the apparatus body 1, when the apex of the distal end 321 contacts the first urging member 36, the apex of the proximal end 322 contacts the second urging member 35, taking the three pairs of distal ends 321 and proximal ends 322 as an example, the cam member 32 is again rotated 60, or rotated in the reverse direction by 60 deg., at this time, the function module 2 is moved into the maximum moved-in position of the apparatus body 1, i.e., the reset position, the power member 4 can stop driving the cam member 32 to rotate, and the functional module 2 can be moved into the apparatus body 1.

Therefore, the electronic equipment adopts the driving mechanism 3 in the application, so that the automatic moving-out and moving-in operation of the functional module 2 can be realized, and the functional module 2 is driven by the driving mechanism 3 to perform linear reciprocating movement, so that the functional module 2 is moved out of the electronic equipment when in use and is moved into the electronic equipment when not in use, the functional module 2 does not occupy the screen space of the electronic equipment, and the screen occupation ratio is improved. The size, the layout or the screen occupation ratio of the electronic equipment are considered while the functional requirements are met.

Further, power component 4 drives cam part 32 and rotates along unidirectional, compares with prior art, and under the condition that function module 2 moved out fast and shifted into under actuating mechanism 3's drive, does not need middle scram cam part 32, also need not to change the direction of rotation of cam part 32, makes actuating mechanism 3 reciprocating motion smooth and easy, when power component 4 applied the motor and driven actuating mechanism 3, because do not need motor scram and switching-over to motor life has been improved.

Further, in the present embodiment, as shown in fig. 4, the power component 4 is an ultrasonic motor, and the ultrasonic motor is in driving connection with the rotating shaft 323 of the cam component 32. The ultrasonic motor mainly includes a power supply circuit 44, a piezoelectric ceramic 43, an elastic body 42, and a wear-resistant material layer 41. Wherein, the power supply circuit 44 is used for providing high-frequency alternating current signals, the piezoelectric ceramic 43 is an annular piezoelectric ceramic piece, the piezoelectric ceramic 43 is connected with the power supply circuit 44, and the piezoelectric ceramic 43 can be BaTiO₃Materials such as PZT, elastomer 42 paste and cover in piezoceramics 43's one end, can take place deformation, like the copper sheet, can increase the deflection, can select whether to use according to actual need, wear-resisting material layer 41's one end and elastomer 42 frictional contact, the other end combines with the one end of the pivot 323 of cam part 32, and wear-resisting material layer 41 can select for use carbon nanomaterial.

The working principle of the ultrasonic motor is as follows: the piezoelectric ceramic 43 can be alternately deformed by stretching and contracting under an electric field formed by a high-frequency alternating current signal by utilizing an inverse piezoelectric effect (the amplitude of each time is about 2-5 micrometers, the stretching time per second is about 7 ten thousand to 10 ten thousand times, the displacement per second can reach several centimeters, and the product requirement is met), the elastic body 42 forms a traveling wave rotating along the circumferential direction of the annular ceramic sheet under the condition of certain frequency and voltage, so that any point on the surface of the elastic body 42 forms ultrasonic vibration according to an elliptical track, the vibration is amplified through the elastic body 42, the elastic body 42 is in frictional contact with the wear-resistant material layer 41, the wear-resistant material layer 41 rotates, and the rotating shaft 323 is bonded and fixed on the wear-resistant material layer 41, so that the rotating shaft 323 and the wear-resistant.

During operation, the power supply of the ultrasonic motor generates torque, the cam part 32 is driven to rotate along a single direction, the power supply of the ultrasonic motor is stopped, the torque disappears, the cam part 32 stops rotating, and the static friction force between the elastic body 42 and the wear-resistant material layer 41 of the ultrasonic motor can be relied on to stop at the rotating position.

The ultrasonic motor is adopted as the power component 4, and no coil or magnet is needed, so that the ultrasonic motor does not generate electromagnetic waves and noise, and the influence of the external environment on the ultrasonic motor is small, and the ultrasonic motor does not have electromagnetic interference and influence on electronic devices of electronic products; in addition, compared with other power parts 4, the ultrasonic motor has a simple structure, and can save a large amount of space, especially the thickness direction of electronic equipment.

Of course, the power unit 4 may also adopt a combination of a stepping motor and a speed reducer, and can also realize power driving, but the structure is not as simple as that of an ultrasonic motor, and electromagnetic interference exists.

In order to realize the automatic moving-out and moving-in of the functional module 2 of the electronic equipment, in the embodiment, the ultrasonic motor is in control connection with the processor in the equipment body 1; the processor is used for controlling the ultrasonic motor to supply power to rotate after acquiring the moving-out instruction of the functional module 2, and when the functional module 2 moves out to a specified position (usually the maximum moving-out position of the functional module 2), the processor controls the ultrasonic motor to stop supplying power to rotate; and after the processor acquires the moving-in instruction of the functional module 2, the ultrasonic motor is controlled to continue to supply power to rotate, and after the functional module 2 moves in and resets, the processor controls the ultrasonic motor to stop supplying power to rotate.

The triggering of the move-out command and the move-in command may be operated by physical keys or virtual keys or by wireless signals.

Further, in this embodiment, the processor is preset with a time control program, and after the processor obtains the moving-out instruction or the moving-in instruction, the processor controls the power supply rotation time of the ultrasonic motor through the time control program, so that the functional module 2 moves out to the designated position or moves in to reset.

The power supply rotation time is determined according to the rotation rule of the cam member 32, taking three pairs of the far-center end 321 and the near-center end 322 as an example for explanation, the time required for the cam member 32 to rotate by 60 degrees is the power supply rotation time, the power supply rotation time is preset in the time control program, the processor stops the power supply rotation of the ultrasonic motor from the moment when the processor obtains the moving-out instruction or the moving-in instruction, and when the working time of the ultrasonic motor reaches the power supply rotation time. Thereby achieving automatic moving out and in of the function module 2.

Certainly, the automatic moving-out and moving-in of the functional module 2 can also be realized by other modes, in this embodiment, the electronic device further includes a displacement detection module, the displacement detection module is in control connection with the processor, and the displacement detection module is used for detecting the position information of the functional module 2 relative to the device body 1; after the processor acquires the moving-out instruction or the moving-in instruction, the processor controls the power supply rotation time of the ultrasonic motor by acquiring the position information detected by the displacement detection module, so that the functional module 2 is moved out to a specified position or a moving-in position.

During operation, when the function module 2 shifts out of the equipment body 1, if the displacement detection module detects that the function module 2 reaches the specified shifting-out position, the processor acquires the position information detected by the displacement detection module and controls the ultrasonic motor to stop supplying power to rotate, and when the function module 2 shifts into the equipment body 1, if the displacement detection module detects that the function module 2 reaches the reset position, the processor acquires the position information detected by the displacement detection module and controls the ultrasonic motor to stop supplying power to rotate. Thereby achieving automatic moving out and in of the function module 2.

In addition, the power supply control of the ultrasonic motor can also detect the rotation angle of the cam component 32 through an angle sensor, taking three pairs of the far-end 321 and the near-end 322 as an example, when the cam component 32 is detected to rotate 60 degrees from the reset position, the processor acquires angle information detected by the angle sensor, controls the ultrasonic motor to stop power supply rotation, and at this time, the functional module 2 moves out to the designated position; when the angle sensor detects that the cam part 32 continues to rotate by 60 degrees from the moved-out position, the processor acquires angle information detected by the angle sensor, controls the ultrasonic motor to stop supplying power to rotate, and at the moment, the functional module 2 moves to the moved-in position.

Of course, there are other ways to control the power supply and power cut of the ultrasonic motor, and the method is not limited to the way set forth in the above embodiments.

In this embodiment, electronic equipment is wearing formula electronic equipment, and wearing formula electronic equipment can be for intelligent wrist-watch, intelligent bracelet, intelligent glasses, intelligent gloves, intelligent helmet, intelligent dress or intelligent shoes etc. as long as there is the wearing formula electronic equipment that functional module 2 shifted out and shifted into all within the protection scope of this application.

In the present embodiment, the functional module 2 is one or more combinations of a camera module, a speaker module and an earphone module. That is, the functional module 2 capable of moving out and in the wearable electronic device can be applied with the driving mechanism 3 in the present application.

Taking an intelligent watch as an example, the functional module 2 can be a camera module, the device body 1 comprises a dial 12 and a watchband 11, the dial 12 is provided with a display screen, and besides indicating time, the device can also have one or more functions of reminding, navigation, calibration, monitoring, interaction and the like; the display means includes a pointer, a number, an image, and the like. The camera module is in driving connection with the driving mechanism 3, in particular, the camera module is fixed with one end of the linearly moving member 34.

In operation, the process of moving out the camera module is as follows, as shown in fig. 5 and 6:

the first step is as follows: clicking a self-photographing mode on a display screen interactive interface to trigger a moving-out instruction;

the second step is that: after the processor receives the moving-out instruction, a power supply signal is sent to a power supply circuit of the ultrasonic motor, the power supply circuit 44 generates a high-frequency alternating current signal, the high-frequency alternating current signal is loaded on the piezoelectric ceramic 43, the piezoelectric ceramic 43 can be alternately stretched and deformed, the elastic body 42 forms a traveling wave rotating along the circumferential direction under the condition of certain frequency and voltage, any point on the surface of the elastic body 42 generates ultrasonic vibration according to an elliptical track, and the vibration enables the wear-resistant material layer 41 and the rotating shaft 323 to rotate through the friction action between the elastic body 42 and the wear-resistant material layer 41 so as to drive the cam part 32 to rotate;

a third step; the cam component 32 rotates and is matched with the first pushing component 36 and the second pushing component 35 to push the linear moving component 34 to move leftwards, so that the camera module extends to a specified position, and the processor controls the power supply of the ultrasonic motor to stop, thereby realizing photographing.

The procedure of the camera module moving in is as follows, as shown in fig. 7 and 8:

the first step is as follows: clicking a stop mode on an interactive interface of a display screen to trigger a move-in instruction;

the second step is that: after the processor receives the moving-in command, the processor sends the same power supply signal to the power circuit 44 of the ultrasonic motor again, the power circuit 44 generates a high-frequency alternating current signal, finally, the cam part 32 continues to rotate, the cam part 32, the first pushing part 36 and the second pushing part 35 continue to move in a matched mode, the linear moving part 34 is pushed to move rightwards in a reverse mode, the camera module is retracted to the moving-in position, the processor controls the ultrasonic motor to stop supplying power, and the camera is turned off.

According to the working process, the intelligent watch can be automatically moved out when the camera module is used, and is automatically retracted when the camera module is not used, so that the camera module is automatically moved out and moved in, the display area of the intelligent watch is increased, the screen occupation ratio is improved, and the user experience is improved.

To intelligent wrist-watch, the camera module sets up in the side of dial plate 12, is not in same one side with watchband 11, makes things convenient for shifting out of camera module.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A drive mechanism for an electronic device, comprising:

a cam member (32), said cam member (32) having at least one pair of a corresponding distal end (321) and proximal end (322) distributed circumferentially thereof, each pair of said distal end (321) and said proximal end (322) being located on a line passing through a center of rotation of said cam member (32);

a first urging member (36) and a second urging member (35), a rotation center of the cam member (32) being located between the first urging member (35) and the second urging member (36), the first urging member (36) and the second urging member (35) each being in contact fit with an outer contour surface of the cam member (32);

and the power component (4) is in driving connection with the cam component (32), and the power component (4) drives the cam component (32) to rotate, so that the rotating center and the first pushing component (36) move relatively to each other in a reciprocating straight line in a connecting line direction between the first pushing component (36) and the second pushing component (35).

2. The drive mechanism according to claim 1, characterized in that the power member (4) drives the cam member (32) in rotation in a single direction.

3. The drive mechanism according to claim 1, wherein a distance between two intersection points at which an outer contour line of the cam member (32) intersects with any straight line passing through the rotation center is equal to a distance between the first urging member (36) and the second urging member (35).

4. The drive mechanism according to claim 1, further comprising a linearly moving member (34), the linearly moving member (34) moving in a direction parallel to a line between the first urging member (36) and the second urging member (35); the first pushing member (36) and the second pushing member (35) are fixed to the linearly moving member (34), and the rotation axis of the cam member (32) is fixed.

5. The drive mechanism according to claim 1, further comprising a linearly moving member (34), the linearly moving member (34) moving in a direction parallel to a line between the first urging member (36) and the second urging member (35); the cam member (32) is rotatably connected to the linearly moving member (34), and the first urging member (36) and the second urging member (35) are fixed in position.

6. The drive mechanism according to claim 4 or 5, further comprising a linear guide member in guiding engagement with the linearly moving member (34) for guiding movement of the linearly moving member (34) in a linear direction.

7. The drive mechanism according to claim 6, wherein the linear guide member includes a first guide rail (31) and a second guide rail (33), and the first guide rail (31) and the second guide rail (33) are in guide engagement with both ends of the linear moving member (34), respectively.

8. The drive mechanism according to any one of claims 1 to 5, wherein the first urging member (36) and the second urging member (35) each have an arcuate mating surface which is in sliding engagement with an outer contoured surface of the cam member (32).

9. The drive mechanism according to any one of claims 1 to 5, wherein the cam member (32) has an odd number of pairs of the distal ends (321) and the proximal ends (322) distributed circumferentially thereof, and the distal ends (321) and the proximal ends (322) are arranged alternately and uniformly in a circumferential direction of the cam member (32).

10. The drive mechanism according to claim 8, wherein the cam member (32) has three pairs of the distal end (321) and the proximal end (322) distributed along a circumferential direction thereof, and the distal end (321) and the proximal end (322) are arranged alternately and uniformly in the circumferential direction of the cam member (32), and an arrangement angle between adjacent distal ends (321) and proximal ends (322) is 60 °.

11. A functional module assembly comprising a functional module (2) and a drive mechanism, characterized in that the drive mechanism is a drive mechanism (3) according to any one of claims 1-10, the functional module (2) being in driving connection with the drive mechanism (3), the drive mechanism (3) driving the functional module (2) to reciprocate in a straight line.

12. Functional module assembly according to claim 11, characterized in that the functional module (2) is one or a combination of more of a camera module, a speaker module and an earpiece module.

13. An electronic device comprising a device body (1) and a functional module (2), wherein the device body is provided with an opening, and further comprising a driving mechanism (3) according to any one of claims 1-10, wherein the driving mechanism (3) is disposed on the device body (1), the driving mechanism (3) is in driving connection with the functional module (2), and the driving mechanism (3) drives the functional module (2) to move out of or into the device body (1) through the opening along a straight line.

14. The electronic device according to claim 13, characterized in that the power component (4) of the drive mechanism (3) is an ultrasonic motor which is in driving connection with the rotating shaft (323) of the cam component (32) of the drive mechanism (3).