CN111561633B

CN111561633B - Tiltable imaging system and electronic equipment

Info

Publication number: CN111561633B
Application number: CN202010294632.9A
Authority: CN
Inventors: 余林涛; 曹宏
Original assignee: Ruien Photoelectric Co ltd
Current assignee: Ruien Photoelectric Co ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2021-08-17
Anticipated expiration: 2040-04-15
Also published as: CN111561633A

Abstract

The present disclosure provides a tiltable imaging system, comprising: a camera module including a lens and used for taking an image; the supporting part is fixedly connected with the camera module and is used for supporting the camera module; the first SMA spring is connected with the supporting part; and the second SMA spring is connected with the supporting part, the first SMA spring and the second SMA spring enable the supporting part to rotate around the rotating center of the supporting part, so as to drive the camera module to rotate, the first SMA spring provides a first rotating force for enabling the camera module to deviate from the initial optical axis direction to incline when being electrified, the first rotating force for enabling the camera module to return to the initial optical axis direction of the lens is provided, and the second SMA spring provides a second rotating force for enabling the camera module to return to the initial optical axis direction of the lens when being electrified. The present disclosure also provides an electronic device.

Description

Tiltable imaging system and electronic equipment

Technical Field

The present disclosure relates to a tiltable imaging system and an electronic apparatus.

Background

Along with the requirement of the function of the intelligent equipment, more and more intelligent equipment are provided with the cameras, and the requirements on the cameras are different according to the requirement of the intelligent equipment.

For some intelligent devices, the camera is required to be capable of inclining, for example, the camera such as a video conference needs to be adjusted in angle.

Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a control device capable of effectively controlling the angle of a camera. Moreover, after the liftable camera is adopted, how to lift and incline more effectively and prevent the damage of the camera is also a problem to be solved urgently.

Disclosure of Invention

In order to solve at least one of the above technical problems, the present disclosure provides an image capturing system and an electronic apparatus.

According to one aspect of the present disclosure, a tiltable imaging system includes:

a camera module including a lens and for taking an image;

the supporting part is fixedly connected with the camera module and is used for supporting the camera module;

a first telescopic part connected with the support part; and

a second expansion part connected with the support part,

the first telescopic part and the second telescopic part enable the supporting part to rotate around a rotating center of the supporting part so as to drive the camera module to rotate, the first telescopic part provides first rotating force enabling the camera module to keep or return to an initial optical axis direction of the lens, the second telescopic part provides second rotating force enabling the camera module to deviate from the initial optical axis direction to incline, when the first rotating force provided by the first telescopic part is larger than the second rotating force provided by the second telescopic part, the optical axis direction of the lens of the camera module is in the initial optical axis direction, and when the first rotating force provided by the first telescopic part is smaller than the second rotating force provided by the second telescopic part, the optical axis direction of the lens of the camera module deviates from the initial optical axis direction.

According to at least one embodiment of the present disclosure, the first expansion part is a spring with a constant stiffness coefficient and the second expansion part is an SMA spring; or

The first telescopic part is an SMA spring and the second telescopic part is an SMA spring.

According to at least one embodiment of the present disclosure, in a case where the first expansion part is a spring having a constant stiffness coefficient and the second expansion part is an SMA spring, the stiffness of the SMA spring is adjusted by controlling a current supplied to the SMA spring to control a rotational force supplied to the support part by the SMA spring.

According to at least one embodiment of the present disclosure, in a case where the first expansion part is an SMA spring and the second expansion part is an SMA spring, the rigidity of the SMA spring is adjusted by controlling the current supplied to the first expansion part and the second expansion part, thereby controlling the rotational force supplied to the support part by the first expansion part and the second expansion part.

According to at least one embodiment of the present disclosure, further comprising a first blocking member and a second blocking member, the first blocking member and the second blocking member defining a rotation range of the support portion,

the first blocking piece limits the rotation angle of the supporting portion so as to limit the optical axis direction of the lens of the camera module to the initial optical axis direction, and the second blocking piece limits the rotation angle of the supporting portion so as to limit the maximum deviation angle of the optical axis direction of the lens of the camera module and the initial optical axis direction.

According to at least one embodiment of the present disclosure, the first blocking member and the second blocking member are in the form of fixed stoppers.

According to at least one embodiment of the present disclosure, the camera module further includes a first position detecting portion and a second position detecting portion, the first position detecting portion and the second position detecting portion detect a rotation angle of the supporting portion, wherein the first position detecting portion is configured to detect a state where an optical axis direction of a lens of the camera module is in the initial optical axis direction, and the second position detecting portion is configured to detect a state where the optical axis direction of the lens of the camera module is at a maximum deviation angle of the initial optical axis direction.

According to at least one embodiment of the present disclosure, the current of the SMA spring is controlled according to the detection signal of the first position detecting part and/or the second position detecting part.

According to at least one embodiment of the present disclosure, the first position detection part and the second position detection part are hall sensors or limit switches.

According to at least one embodiment of the present disclosure, the camera module further comprises a lifting device, wherein the lifting device is used for moving the camera module up and down so as to extend or retract the camera module.

According to at least one embodiment of the present disclosure, the lifting device includes:

a motor including a motor shaft;

the transmission mechanism is combined with the motor shaft;

a rotating mechanism coupled with the transmission mechanism such that rotation of the motor shaft is transmitted to the rotating mechanism, causing the rotating mechanism to rotate;

and the supporting mechanism is connected with the rotating mechanism and converts the rotation of the rotating mechanism into up-and-down movement, so that the camera module is lifted.

According to at least one embodiment of the present disclosure, the transmission mechanism includes a first gear fixed concentrically with the motor shaft and a second gear fixed concentrically with the rotation mechanism, and transmits the rotation of the motor shaft to the rotation mechanism by meshing of the first gear and the second gear.

According to at least one embodiment of the present disclosure, the rotation mechanism includes a rotation lever at least a part of which is provided with a threaded portion, and a nut portion that moves up and down with respect to the threaded portion when the rotation lever is rotated.

According to at least one embodiment of the present disclosure, the support mechanism is in contact with at least an upper side of the nut portion so as to move up and down following the nut portion.

According to at least one embodiment of this disclosure, still include the axial region, the supporting mechanism cover is established in order to follow on the axial region removes.

According to another aspect of the present disclosure, an electronic apparatus includes the camera system as described above.

According to another aspect of the present disclosure, a tiltable imaging system includes:

a camera module including a lens and for taking an image;

a first SMA spring connected with the support portion; and

a second SMA spring connected with the support portion,

the first SMA spring and the second SMA spring make the support part rotate around the rotation center of the support part, so as to drive the camera module to rotate, the first SMA spring provides a first rotation force for making the camera module deviate from the initial optical axis direction to incline when being electrified, the first rotation force for making the camera module return to the initial optical axis direction of the lens is provided, and the second SMA spring provides a second rotation force for making the camera module return to the initial optical axis direction of the lens when being electrified.

According to at least one embodiment of the present disclosure, a rotation shaft fixed to first and second lateral surfaces of the support part, the first and second lateral surfaces being opposite lateral surfaces;

a support frame body for rotatably supporting the rotating shaft;

an outer housing located outside the support frame body and fixed with the support frame body,

the first SMA spring and the second SMA spring are arranged on the first side face of the supporting portion, one end of the first SMA spring is fixed to a middle line of the first side face in the width direction, the other end of the first SMA spring is fixed to the supporting frame body, one end of the second SMA spring is fixed to the position of the middle line, the other end of the second SMA spring is fixed to the outer shell, and the fixing point of one end of the first SMA spring and the fixing point of one end of the second SMA spring reversely deviate from the preset angle relative to the middle line.

According to at least one embodiment of the present disclosure, the camera module is rotated after being lifted, and in the lifting direction, the fixing point of the other end of the second SMA spring is located above the fixing point of the other end of the first SMA spring, and the intermediate position is located between the fixing point of the other end of the second SMA spring and the fixing point of the other end of the first SMA spring.

According to at least one embodiment of the present disclosure, the camera module further includes an SUS spring having a constant stiffness coefficient and disposed at the second side of the support portion, wherein one end of the SUS spring is connected to the support portion and the other end is connected to the support frame body for maintaining the camera module at a predetermined tilt angle after the camera module reaches the predetermined tilt angle.

the first blocking piece limits the rotation angle of the supporting portion so as to limit the optical axis direction of a lens of the camera module to the initial optical axis direction, and the second blocking piece limits the rotation angle of the supporting portion to a preset inclination angle.

According to at least one embodiment of this disclosure, still include spacing groove and gag lever post, the spacing groove is seted up on the shell body to the both ends side of spacing groove is used for injecing camera module's initial optical axis direction and predetermined inclination, the one end of gag lever post is fixed to on the supporting part, and one end sets up in the spacing groove.

According to at least one embodiment of this disclosure, still include permanent magnet and hall sensor to detect whether camera module is in initial optical axis direction, the permanent magnet sets up on the supporting part, hall sensor sets up correspondingly on the support frame body.

a motor including a motor shaft;

the transmission mechanism is combined with the motor shaft;

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

FIG. 1 is a schematic diagram of a tiltable camera system according to one embodiment of the present disclosure.

FIG. 2 is a schematic diagram of a tiltable camera system according to one embodiment of the present disclosure.

FIG. 3 is a schematic diagram of a tiltable camera system according to one embodiment of the present disclosure.

FIG. 4 is a schematic diagram of a tiltable camera system, according to one embodiment of the present disclosure.

FIG. 5 is a schematic diagram of a tiltable camera system, according to one embodiment of the present disclosure.

Fig. 6 is a schematic left side sectional view of fig. 5.

FIG. 7 is a schematic diagram of a tiltable camera system, according to one embodiment of the present disclosure.

Fig. 8 is a schematic left side sectional view of fig. 6.

FIG. 9 is a schematic diagram of a tiltable camera system, according to one embodiment of the present disclosure.

Fig. 10 is a left side schematic sectional view of fig. 9.

Fig. 11 is a right side schematic sectional view of fig. 9.

Description of the reference numerals

10 image pickup system

100 camera module

101 camera module

102 support part

103 first expansion part

104 second expansion part

105 shell

106 first barrier

107 second barrier

200 lifting device

201 electric machine

202 transmission mechanism

203 rotating mechanism

204 support mechanism

205 shaft portion

300 casing

400 flexible circuit board

1011 lens

1012 accommodating part

2011 Motor shaft

2021 first gear

2022 second gear

2031 threaded part

2032 nut part

2041 first projection

2042 second projection

2043 supporting part

Center of rotation of O

10a camera system

100a camera module

101a camera module

102a support part

103a first expansion part

104a second expansion part

105a casing

106a first barrier

107a second barrier

200a lifting device

201a motor

202a transmission mechanism

203a rotating mechanism

204a support mechanism

205a shaft portion

300a casing

400a flexible circuit board

1011a lens

1012a accommodating part

2011a Motor shaft

2021a first gear

2022a second gear

2031a threaded portion

2032a nut part

2041a first projection

2042a second projection

2043a supporting part

1031a SUS spring

501a rotating shaft

502a support frame

1041a first SMA spring

1042a second SMA spring

503a spacing groove

504a gag lever post

505a permanent magnet

506a hall sensor.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. Technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Unless otherwise indicated, the illustrated exemplary embodiments/examples are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure may be practiced. Accordingly, unless otherwise indicated, features of the various embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concept of the present disclosure.

The use of cross-hatching and/or shading in the drawings is generally used to clarify the boundaries between adjacent components. As such, unless otherwise noted, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for a particular material, material property, size, proportion, commonality between the illustrated components and/or any other characteristic, attribute, property, etc., of a component. Further, in the drawings, the size and relative sizes of components may be exaggerated for clarity and/or descriptive purposes. While example embodiments may be practiced differently, the specific process sequence may be performed in a different order than that described. For example, two processes described consecutively may be performed substantially simultaneously or in reverse order to that described. In addition, like reference numerals denote like parts.

When an element is referred to as being "on" or "on," "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element, there are no intervening elements present. For purposes of this disclosure, the term "connected" may refer to physically, electrically, etc., and may or may not have intermediate components.

For descriptive purposes, the present disclosure may use spatially relative terms such as "below … …," below … …, "" below … …, "" below, "" above … …, "" above, "" … …, "" higher, "and" side (e.g., as in "side wall") to describe one component's relationship to another (other) component as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below … …" can encompass both an orientation of "above" and "below". Further, the devices may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising" and variations thereof are used in this specification, the presence of stated features, integers, steps, operations, elements, components and/or groups thereof are stated but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximate terms and not as degree terms, and as such, are used to interpret inherent deviations in measured values, calculated values, and/or provided values that would be recognized by one of ordinary skill in the art.

According to a first embodiment of the present disclosure, an image pickup system is provided. A schematic cross-sectional view of the camera system 10 is shown in fig. 1 and 2.

As shown in fig. 1 and 2, the camera system 10 may include a camera module 100, a lifting device 200, and a housing 300.

The camera module 100 can move up and down to protrude out of the housing 300 (see fig. 2) or retract into the housing 300 (see fig. 1). For example, when used, the camera module 100 protrudes outside the housing 300 (see fig. 2), and when not used, the camera module 100 may be housed inside the housing 300 (see fig. 1).

The lifting device 200 may include a motor 201, a transmission mechanism 202, a rotation mechanism 203, and a support mechanism 204.

The motor 201 may include a motor shaft 2011. When the motor 201 is energized, the motor shaft 2011 rotates.

The transmission mechanism 202 may include a form of gear, wherein the gear may include a first gear 2021 and a second gear 2022, wherein the first gear 2021 may be fixed concentrically with the motor shaft 2011, that is, the first gear 2021 may be fixed to the motor shaft 2011.

The rotating mechanism 203 is combined with the transmission mechanism 202. Wherein the rotating mechanism includes a rotating lever, both ends of which can be fixed to the housing 300 and can rotate with respect to the housing 300.

As shown in fig. 1 and 2, the second gear 2022 may be fixedly disposed on the rotating rod, so that when the motor shaft 2011 rotates, the rotation of the motor shaft 2011 is converted into the rotation of the rotating mechanism 203 through the transmission of the first gear 2021 and the second gear 2022.

The rotating mechanism 203 may include a threaded portion 2031 and a nut portion 2032. The threaded portion 2031 occupies at least a part of the rotating lever, and the nut portion 2032 is fitted on the threaded portion 2031, and when the rotating mechanism 203 rotates, the nut portion 2032 moves up and down relative to the threaded portion 2031 by meshing.

The support mechanism 204 is for supporting the camera module 100, and it can move up and down with the up and down movement of the nut portion 2032.

The support mechanism 204 is in contact with at least the upper side of the nut portion 2032, and thus moves up and down following the nut portion 2032. For example, the support mechanism 204 has a first protruding portion 2041, and the lower surface of the first protruding portion 2041 abuts against the upper surface of the nut portion 2032, so that the support mechanism 204 can be supported by the nut portion 2032.

The support mechanism 204 may further include a second protrusion 2042, and a space accommodating the nut portion 2032 is formed between the second protrusion 2042 and the first protrusion 2041 so as to be located between the second protrusion 2042 and the first protrusion 2041.

The support mechanism 204 may further include a support part 2043, the support part 2043 being located at a lower side of the camera module 100 for supporting the camera module 100.

In addition, a shaft portion 205 may be further included, and both ends of the shaft portion 205 are fixedly connected to both sides of the housing 300, respectively. The shaft portion 205 provides a guide for the support mechanism 204 so as to stably move up and down the support mechanism 204. Accordingly, a hollow portion is provided inside the support mechanism 204 so as to accommodate the shaft portion 205.

With the above-described lifting device 200, when it is necessary to extend or retract the camera module 100 into or from the housing 300, the motor 201 is used to stably drive the camera module.

According to further embodiments of the present disclosure, the tiltable camera system may further include a flexible circuit board 400 (FPC). The flexible circuit board 400 is connected to the camera module 100 and an external circuit, respectively, so as to transmit control signals and supply power.

Fig. 3(a) shows a front sectional view of the camera module 100, and fig. 3(b) shows a side sectional view of the camera module 100.

The camera module 100 may include a camera module 101 having a lens 1011 and a receptacle 1012. The lens 1011 is used for shooting, and the accommodating part 1012 may be used for accommodating the camera.

The camera module 100 may further include a support portion 102. The supporting portion 102 is fixedly connected to the camera module 101 and is used for supporting the camera module 101.

The camera module 100 may further include a first telescopic part 103 and a second telescopic part 104. The first telescopic part 103 is connected to the support part 102, and the second telescopic part 104 is connected to the support part 102.

The first telescopic part 103 and the second telescopic part 104 enable the supporting part 102 to rotate around the rotation center O of the supporting part, so as to drive the camera module 101 to rotate, the first telescopic part 103 provides a first rotating force for keeping or returning the camera module 101 to the initial optical axis direction of the lens, and the second telescopic part 104 provides a second rotating force for making the camera module 101 deviate from the initial optical axis direction to tilt, wherein when the first rotating force provided by the first telescopic part 103 is greater than the second rotating force provided by the second telescopic part 104, the optical axis direction of the lens of the camera module 101 is in the initial optical axis direction, and when the first rotating force provided by the first telescopic part 103 is less than the second rotating force provided by the second telescopic part, the optical axis direction of the lens of the camera module 101 deviates from the initial optical axis direction.

According to a further embodiment of the present disclosure, a housing 105 is further included, wherein a portion of the support portion 102 and the first and second

telescopic portions

103 and 104 are disposed in the housing 105, and an upper side of the housing 105 leaves a space for the support portion 102 to rotate.

In one embodiment of the present disclosure, the first telescopic part 103 and the second telescopic part 104 may be in the form of controllable compression rods, and one end of the compression rod is connected to the supporting part 102, and the other end is connected to the housing 105, and the tilt rotation of the camera module 101 is realized by controlling the difference of the forces provided by the two compression rods.

In an alternative embodiment of the present disclosure, the first and

second bellows

103, 104 are in the form of springs, which will be described in detail below, but it will be understood by those skilled in the art that the implementation principle is the same when a compression rod is used.

First, in the case of the spring type, the first expansion part 103 may be a spring having a constant stiffness coefficient, and the second expansion part 104 may be an SMA spring.

One end of the spring of the first telescopic part 103 may be fixed to the lower end of the support part 102, and the first telescopic part 103 may be fixed to the housing 105. One end of the spring of the second telescopic part 104 may be fixed to the lower end of the support part 102, and the second telescopic part 104 may be fixed to the housing 105.

As can be seen from fig. 3(b), the arrangement directions of the first and second

telescopic parts

103 and 104 are opposite, so that a right or left pulling force in fig. 3(b) can be provided. When the force provided by the first telescopic part 103 is greater than the force provided by the second telescopic part 104, the support part 102 tilts to the left, and when the force provided by the first telescopic part 103 is less than the force provided by the second telescopic part 104, the support part 102 tilts to the right.

In a specific control process, the rigidity of the SMA spring may be changed by changing the value of the current supplied to the SMA spring through the FPC400, and when the current is large, the rigidity of the SMA spring is large, and when the current is small, the rigidity of the SMA spring is small.

According to another alternative embodiment of the present disclosure, the first telescopic part 103 may be an SMA spring and the second telescopic part 104 may be an SMA spring.

telescopic parts

In a particular control process, the value of current provided to the two SMA springs by FPC400 may be varied to vary the stiffness of the two SMA springs.

According to a further embodiment, as shown in fig. 3(b), the camera module 101 may further include a first stopper 106 and a second stopper 107, and the first stopper 106 and the second stopper 107 define a rotation range of the support portion 102, thereby defining a rotation range of the lens.

The first stopper 106 defines a rotation angle of the support portion 102 to define an optical axis direction of the lens of the camera module 101 to an initial optical axis direction (a horizontal direction as shown in the figure), and the second stopper 107 defines a rotation angle of the support portion 102 to define a maximum deviation angle of the optical axis direction of the lens of the camera module 101 from the initial optical axis direction.

The first blocking member 106 and the second blocking member 107 may be in the form of fixed stops, for example two stops may be fixedly arranged on the housing 105.

According to an alternative embodiment of the present disclosure, the first stopper 106 and the second stopper 107 may be replaced with a first position detection part and a second position detection part, which detect the rotation angle of the support part 102, wherein the first position detection part is configured to detect a state that the optical axis direction of the lens of the camera module 101 is in the initial optical axis direction, and the second position detection part is configured to detect a state that the optical axis direction of the lens of the camera module 101 is in the maximum deviation angle of the initial optical axis direction.

In a specific application, the first position detection part and the second position detection part are Hall sensors or limit switches. The current of the SMA spring is controlled based on the detection signal of the first position detector and/or the second position detector (both of the two SMA springs and the one SMA spring can be controlled).

Specifically, for example, a hall sensor is provided on the housing 105, a permanent magnet is provided on the support portion 102, the current of the SMA spring is controlled when returning to the initial optical axis direction is required, and the SMA spring is controlled to be stabilized in the initial optical axis direction when the hall element of the first position detection portion detects that the support portion is in place. When the maximum inclination angle is required to be reached, the current of the SMA spring is controlled, and when the Hall element of the second position detection part detects that the supporting part is in place, the SMA spring is controlled to be stabilized to the maximum inclination angle.

Fig. 4 shows the rotation of SMA springs after energization (only one SMA spring is used as an example), fig. 4(a) is in the initial optical axis direction, and fig. 4b is at the maximum tilt angle. For example, the maximum inclination angle may be set according to actual conditions, for example, 40 °.

In a further embodiment of the disclosure, for example in the case of a teleconference, the positions of the participants of the conference may be automatically detected, and the first and second telescopic mechanisms may be controlled in accordance with the detected positions, thereby to achieve tilting of the lens.

A second embodiment according to the present disclosure provides a camera system, see fig. 5-11. This embodiment differs from the first embodiment mainly in the way of tilt control of the camera system. This embodiment will be described in detail below.

A schematic cross-sectional view of the imaging system 10a is shown in fig. 5 to 8. Where fig. 5 is a front sectional view of the system in a state where the camera module is retracted, fig. 6 shows a left side sectional view of fig. 5, fig. 7 is a front sectional view of the system in a state where the camera module is extended, and fig. 8 shows a left side sectional view of fig. 7.

As shown in fig. 5 and 7, the camera system 10a may include a camera module 100a, a lifting device 200a, and a housing 300 a.

The camera module 100a may move up and down to protrude out of the housing 300a (see fig. 7) or retract into the housing 300a (see fig. 5). For example, when used, the camera module 100a protrudes out of the housing 300a (see fig. 7), and when not used, the camera module 100a may be housed inside the housing 300a (see fig. 1).

The lifting device 200a may include a motor 201a, a transmission mechanism 202a, a rotation mechanism 203a, and a support mechanism 204 a.

The motor 201a may include a motor shaft 2011 a. When the motor 201a is energized, the motor shaft 2011a rotates.

The gear train 202a may include a form of gear, wherein the gear may include a first gear 2021a and a second gear 2022a, wherein the first gear 2021a may be fixed concentrically with the motor shaft 2011a, that is, the first gear 2021a may be fixed to the motor shaft 2011 a.

The rotating mechanism 203a is coupled to the transmission mechanism 202 a. Wherein the rotating mechanism includes a rotating lever, both ends of which can be fixed to the housing 300a and can rotate with respect to the housing 300 a.

As shown in fig. 5 and 7, the second gear 2022a may be fixedly disposed on the rotating lever, so that when the motor shaft 2011a rotates, the rotation of the motor shaft 2011a is converted into the rotation of the rotating mechanism 203a through the transmission of the first gear 2021a and the second gear 2022 a.

The rotating mechanism 203a may include a threaded portion 2031a and a nut portion 2032 a. The threaded portion 2031a occupies at least a part of the rotating lever, and the nut portion 2032a is fitted on the threaded portion 2031a, and when the rotating mechanism 203a rotates, the nut portion 2032a moves up and down relative to the threaded portion 2031a by meshing.

The support mechanism 204a is for supporting the camera module 100a, and it can move up and down with the up and down movement of the nut portion 2032 a.

The support mechanism 204a is in contact with at least the upper side of the nut portion 2032a, and thus moves up and down following the nut portion 2032 a. For example, the support mechanism 204a has a first protruding portion 2041a, and the lower surface of the first protruding portion 2041a abuts against the upper surface of the nut portion 2032a, so that the support mechanism 204a can be supported by the nut portion 2032 a.

The support mechanism 204a may further include a second protrusion 2042a, and a space accommodating the nut portion 2032a is formed between the second protrusion 2042a and the first protrusion 2041a so as to be located between the second protrusion 2042a and the first protrusion 2041 a.

The support mechanism 204a may further include a support part 2043a, the support part 2043a being located at a lower side of the camera module 100a for supporting the camera module 100 a.

In addition, a shaft portion 205a may be further included, and both ends of the shaft portion 205a are fixedly connected to both sides of the housing 300a, respectively. The shaft portion 205a provides a guide for the support mechanism 204a so as to stably move the support mechanism 204a up and down. Accordingly, a hollow portion is provided inside the support mechanism 204a so as to accommodate the shaft portion 205 a.

With the above-described lifting device 200a, when it is necessary to extend or retract the camera module 100a into the housing 300a, stable driving is performed by the motor 201 a.

According to further embodiments of the present disclosure, the tiltable camera system may further comprise a flexible circuit board. The flexible circuit board is connected to the camera module 100a and an external circuit, respectively, so as to transmit control signals and supply power.

The camera module 100a may include a camera module 101a having a lens 1011a and a receptacle 1012 a. The lens 1011a is used for shooting, and the accommodating portion 1012a may be used for accommodating the camera.

The camera module 100a may further include a support portion 102 a. The supporting portion 102a is fixedly connected to the camera module 101a and is used for supporting the camera module 101 a.

The camera module 100a may further include a first telescopic part 103a and a second telescopic part 104 a. The first telescopic part 103a is connected to the support part 102a, and the second telescopic part 104a is connected to the support part 102 a.

The first telescopic part 103a and the second telescopic part 104a enable the supporting part 102a to rotate around the rotation center O of the supporting part, so as to drive the camera module 101a to rotate, the first telescopic part 103a provides a first rotating force for keeping or returning the camera module 101a to the initial optical axis direction of the lens, and the second telescopic part 104a provides a second rotating force for making the camera module 101a deviate from the initial optical axis direction to tilt, wherein when the first rotating force provided by the first telescopic part 103a is greater than the second rotating force provided by the second telescopic part 104a, the optical axis direction of the lens of the camera module 101a is in the initial optical axis direction, and when the first rotating force provided by the first telescopic part 103a is less than the second rotating force provided by the second telescopic part, the optical axis direction of the lens of the camera module 101a deviates from the initial optical axis direction.

According to a further embodiment of the present disclosure, a housing 105a is further included, wherein a portion of the support portion 102a and the first and second expansion and contraction portions 103a and 104a are provided in the housing 105a, and an upper side of the housing 105a leaves a space for the support portion 102a to rotate.

In an alternative embodiment of the present disclosure, the first expansion part 103a may be a constant rate spring (SUS spring) and disposed at one side of the support part 102a, and the second expansion part 104a may be an SMA spring and disposed at the other side of the support part 102 a. The one side and the other side are opposite sides.

Fig. 9 to 11 show examples of the rotation control, and a detailed description will be given below with reference to these views.

The first expansion and contraction part 103a is a SUS spring 1031 a.

One end of the SUS spring 1031a is fixed to the side surface on the side of the support portion 102a, for example, at a position of the center line in the width direction of the side surface shown in the support portion 102a as shown in fig. 10, wherein the fixed point of the one end is directly above the rotation center O of the rotation shaft 501 a. The one end may be fixed by a fixing member protruding outward from the support portion 102 a.

The other end of the SUS spring 1031a may be fixed to the support frame 502a, and the support frame 502a may be fixed with respect to the housing 105a and located inside the housing 105 a. The support frame 502a also serves to support the rotation shaft 501a, and both ends of the rotation shaft 501a are rotatably supported on the support frame 502 a.

Wherein a fixing point of the other end of the SUS spring 1031a and a fixing point of one end of the SUS spring 1031a are offset by a predetermined position with respect to a center line in the width direction of the cross section shown in the support portion 102 a. For example, in fig. 10, the fixed point at the other end is deviated to the left at a certain angle.

The second bellows 104a may include a first SMA spring 1041a and a second SMA spring 1042 a.

One end of the first SMA spring 1041a is fixed to the other side surface of the support portion 102a, for example, at a position of the center line in the width direction of the side surface shown in the support portion 102a as shown in fig. 11, with the fixed point of the one end being directly above the rotation center O of the rotation shaft 501 a. The one end may be fixed by a fixing member protruding outward from the support portion 102 a.

The other end of the first SMA spring 1041a may be fixed to the support frame 502 a.

Wherein the fixed point of the other end of the first SMA spring 1041a and the fixed point of one end of the first SMA spring 1041a are offset by a predetermined position with respect to the center line in the width direction of the side surface shown in the support portion 102 a. For example, in fig. 11, the fixed point at the other end is deviated to the left at a certain angle.

Note that, since fig. 10 and 11 are a left side view and a right side view of fig. 9, respectively, the offset position/offset angle of the fixed point of the other end of the first SMA spring 1041a is opposite to the offset position/offset angle of the fixed point of the other end of the SUS spring 1031 a.

One end of the second SMA spring 1042a is fixed to the side of the other side of the support portion 102a, and the fixing point may be the same as that of one end of the first SMA spring 1041 a. For example, as shown in fig. 11, it may be fixed to the position of the center line in the width direction of the side surface shown in the support portion 102a, with the fixed point of the one end being directly above the rotation center O of the rotation shaft 501 a. The one end may be fixed by a fixing member protruding outward from the support portion 102 a.

The other end of the second SMA spring 1042a may be fixed to the housing 502a, e.g., an inner side of the housing 502 a.

The fixed point at the other end of the second SMA spring 1042a is offset from the fixed point at one end of the second SMA spring 1042a by a predetermined position with respect to the center line in the width direction of the side surface shown in the support portion 102 a. For example, in fig. 11, the fixed point at the other end is deviated to the right by a certain angle.

So that the offset position/angle of the fixed point of the other end of the first SMA spring 1041a is opposite to the offset position/angle of the fixed point of the other end of the second SMA spring 1042 a.

Alternatively, the tilt angle of the first SMA spring 1041a is opposite to the tilt angles of the second SMA spring 1042a and the SUS spring 1031a, and the tilt angles of the second SMA spring 1042a and the SUS spring 1031a are the same.

Thus, when the first SMA spring 1041a is energized (in this case, the second SMA spring 1042a is de-energized) after the camera module is ejected, the first SMA spring 1041a contracts, which pulls the support mechanism 204a to rotate away from the initial optical axis direction (e.g., the horizontal direction shown in fig. 6) toward the deviating angle.

When a predetermined deviation angle of the camera module is reached, the first SMA spring 1041a is de-energized, and the camera module is held at the predetermined deviation angle by the SUS spring 1031a, thereby performing an operation of photographing or the like. The SUS spring 1031a may be a compression type spring or an expansion type spring.

In addition, in the technical scheme of this application, also can detect whether camera module etc. completely pop out, for example can be through the mode of position detection, just carry out rotation operation after judging camera module etc. and pop out completely like this to cause the damage to the part.

When the optical axis needs to be returned to the initial optical axis direction from the predetermined deviation angle, the second SMA spring 1042a is energized (at this time, the first SMA spring 1041a is in a power-off state), so that the temperature of the second SMA spring 1042a rises and contracts, and the camera module is pulled to move towards the initial optical axis direction, thereby returning to the initial optical axis direction.

According to a further embodiment, a component for limiting the lens rotation range may be provided, and the component may be the first blocking member 106 and the second blocking member 107 described above, which are used in the same manner and will not be described again.

Further, the housing 105a may be provided with a guide stopper groove 503a and a stopper rod 504 a. Both sides of the guide stopper groove 503a define a movement start position and an end position of the stopper rod 504 a. The stopper rod 504a may have one end fixed to a side of the support mechanism 204a and the other end located in the guide stopper groove 503 a.

One side of the guiding and limiting groove 503a defines a rotation angle of the supporting portion 102a to further define an optical axis direction of the lens of the camera module 101a to an initial optical axis direction (a horizontal direction as shown in the figure), and the other side of the guiding and limiting groove 503a defines a rotation angle of the supporting portion 102a to define a maximum deviation angle of the optical axis direction of the lens of the camera module 101a from the initial optical axis direction.

According to an optional embodiment of the present disclosure, the guide stopper groove 503a and the stopper rod 504a may be replaced with a first position detection part and a second position detection part, which detect the rotation angle of the support part 102a, wherein the first position detection part is configured to detect a state where the optical axis direction of the lens of the camera module 101a is in the initial optical axis direction, and the second position detection part is configured to detect a state where the optical axis direction of the lens of the camera module 101a is in the maximum deviation angle of the initial optical axis direction.

Specifically, for example, a hall sensor is provided on the housing 105a, a permanent magnet is provided on the support portion 102a, the current of the SMA spring is controlled when returning to the initial optical axis direction is required, and the SMA spring is controlled to be stabilized in the initial optical axis direction when the hall element of the first position detection portion detects that the support portion is in place. When the maximum inclination angle is required to be reached, the current of the SMA spring is controlled, and when the Hall element of the second position detection part detects that the supporting part is in place, the SMA spring is controlled to be stabilized to the maximum inclination angle.

In addition, the permanent magnet 505a is disposed on the support frame 502a, and the hall sensor 506a is disposed on the support frame 502a corresponding to the permanent magnet, so that whether the support frame is in the initial optical axis direction can be determined by the permanent magnet and the hall sensor.

In a further embodiment of the present disclosure, for example in the case of a teleconference, the positions of the participants of the conference may be automatically detected, and the first and second telescopic mechanisms may be controlled according to the detected positions, thereby achieving the tilting of the lens.

The present disclosure also provides an electronic device including the above-mentioned camera system.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims

1. A tiltable camera system, comprising:

a camera module including a lens and for taking an image;

a first SMA spring connected with the support portion; and a second SMA spring connected with the support part,

the first SMA spring and the second SMA spring enable the supporting part to rotate around a rotating center of the supporting part so as to drive the camera module to rotate, the first SMA spring provides a first rotating force for enabling the camera module to deviate from an initial optical axis direction to incline when being electrified, the first rotating force for enabling the camera module to return to the initial optical axis direction of the lens is provided, and the second SMA spring provides a second rotating force for enabling the camera module to return to the initial optical axis direction of the lens when being electrified;

a rotation shaft fixed to first and second lateral surfaces of the support part, the first and second lateral surfaces being opposite lateral surfaces;

a support frame body for rotatably supporting the rotating shaft;

the outer shell is positioned on the outer side of the support frame body and is fixed with the support frame body;

the first SMA spring and the second SMA spring are arranged on the first side face of the supporting part, one end of the first SMA spring is fixed to a middle line of the first side face in the width direction, the other end of the first SMA spring is fixed to the supporting frame body, one end of the second SMA spring is fixed to the position of the middle line, and the other end of the second SMA spring is fixed to the outer shell body, wherein the fixed point of one end of the first SMA spring and the fixed point of one end of the second SMA spring are reversely deviated from a preset angle relative to the middle line;

the camera module is rotated after being lifted, in the lifting direction, the fixed point of the other end of the second SMA spring is positioned above the fixed point of the other end of the first SMA spring, and the position of the intermediate line is positioned between the fixed point of the other end of the second SMA spring and the fixed point of the other end of the first SMA spring.

2. A tiltable camera system as in claim 1, further comprising:

and an SUS spring having a constant stiffness coefficient and disposed at the second side of the support part, wherein one end of the SUS spring is coupled to the support part and the other end is coupled to the support frame body to maintain the camera module at a predetermined tilt angle after the camera module reaches the predetermined tilt angle.

3. The tiltable camera system according to any one of claims 1 to 2, further comprising a first blocking member and a second blocking member, the first blocking member and the second blocking member defining a rotation range of the support portion, the first blocking member defining a rotation angle of the support portion and thereby defining an optical axis direction of a lens of the camera module to the initial optical axis direction, the second blocking member defining a rotation angle of the support portion at a predetermined tilt angle.

4. The tiltable camera system according to any one of claims 1 to 2, further comprising a limit groove and a limit rod, wherein the limit groove is opened on the outer housing, and both end sides of the limit groove are used for defining an initial optical axis direction and a predetermined tilt angle of the camera module, one end of the limit rod is fixed to the support portion, and the other end is disposed in the limit groove.

5. The tiltable camera system according to any one of claims 1 to 2, further comprising a permanent magnet and a hall sensor for detecting whether the camera module is in the initial optical axis direction, wherein the permanent magnet is disposed on the support portion, and the hall sensor is correspondingly disposed on the support frame body.

6. A tiltable camera system according to any of claims 1 to 2, further comprising a lifting device for moving the camera module up and down to extend or retract the camera module.

7. A tiltable camera system according to claim 6, wherein said lifting means comprises:

a motor including a motor shaft;

the transmission mechanism is combined with the motor shaft;

8. An electronic device comprising the camera system of any one of claims 1-7.