WO2020082400A1

WO2020082400A1 - Camera telescopic device and mobile phone

Info

Publication number: WO2020082400A1
Application number: PCT/CN2018/112454
Authority: WO
Inventors: 杨小云; 李平
Original assignee: 深圳市兆威机电股份有限公司
Priority date: 2018-10-22
Filing date: 2018-10-29
Publication date: 2020-04-30
Also published as: CN109257467A

Abstract

The present application relates to the technical field of mechanical transmission, and in particular relates to a camera telescopic device and a mobile phone for alleviating the technical problems of large length and high assembling difficulty in the existing camera telescopic device for mobile phones. The device comprises a transmission mechanism, a lead screw, a nut and a driving mechanism; the transmission mechanism is connected with an output shaft of the driving mechanism; the lead screw is connected with the driving mechanism; the nut is connected with the camera, and is in engaged driving with the lead screw to drive the camera to ascend and descend; and the output shaft of the driving mechanism is parallel to the lead screw. The present application reduces the size in the length direction, improves the space utilization rate, realizes the extension and retraction of the camera with respect to the mobile phone shell, protects the camera, enlarges the screen-to-body ratio of the mobile phone, and ensures a higher transmission precision of the lead screw; moreover, the present application reduces the assembling difficulty of respective components inside the mobile phone shell.

Description

Camera telescopic device and mobile phone

Cross-reference of related applications

This application requires the priority of the Chinese patent application with the application number 201811233266.5 and titled "A camera telescopic device and mobile phone" filed with the Chinese Patent Office on October 22, 2018, the entire contents of which are incorporated by reference in this application.

Technical field

This application relates to the technical field of mechanical transmission, in particular to a camera telescopic device and a mobile phone.

Background technique

With the improvement of smart phone design and manufacturing technology, mobile phones with high screen-to-body ratio have quickly occupied the market and become an important development direction. With the continuous introduction of full-screen mobile phones, the setting position and starting method of the camera have been paid more and more attention by relevant designers. Since the camera of the mobile phone can not penetrate the display screen to take pictures, that is, the camera must be designed in an area other than the display screen, and the increase in the screen ratio means that the space around the mobile phone to install the camera is further reduced. Therefore, for high screen ratio The camera of the mobile phone needs to be hidden on the back of the display screen, and normally shrinks inside the body, and extends the screen to take a picture when it needs to be used. Due to the limitation of the mobile phone space, the installation position, transmission mode and volume of the camera are all issues that need to be considered. In the prior art, the transmission form of the screw nut is often used to drive the camera to expand and contract.

The patent number is CN207251786U and the patent titled "Camera Telescopic Device and Mobile Phone" discloses a camera telescopic device. As shown in FIG. 1, it includes a base frame 1 ', a screw 2', and a driving device 3 installed inside the mobile phone case ', Nut 4' and push block 5 'provided on the screw 2', the driving device 3 'is installed on the base frame 1', the screw 2 'is connected with the output shaft of the driving device 3'; the nut 4 'is connected with the screw 2' Engage the drive, the push block 5 'is installed on the nut 4', and connected to the camera. The working principle is that the driving device 3 'drives the screw 2' to rotate, and the nut 4 'engaged with the screw 2' rotates and moves up and down on the screw 2 ', so that the push block 5' installed on the nut 4 'drives the camera to move up and down. The driving device 3 'includes a motor 31' and a planetary reducer 32 '. Because this device uses planetary gear transmission, it has a large number of parts, complicated structure, high assembly difficulty, and low transmission efficiency. At the same time, the planetary transmission of the motor 31 ', the planetary reducer 32' and the screw 2 'are on the same axis, and the length is relatively small. Big.

Therefore, the existing mobile phone camera telescopic device has the technical problems of large length and high assembly difficulty.

Summary of the invention

The purpose of the present application is to provide a camera telescoping device and a mobile phone, so as to alleviate the technical problems of the existing mobile phone camera telescoping device with large length and high difficulty in assembly.

In order to solve the above technical problems, the technical solution provided by this application lies in:

A camera telescopic device, including a transmission mechanism, a screw, a nut and a driving mechanism;

The transmission mechanism is connected to the output shaft of the drive mechanism;

The lead screw is connected to the transmission mechanism;

The nut is connected to the camera, and meshes with the screw to drive the camera to move up and down;

The output shaft of the driving mechanism is parallel to the lead screw.

go a step further,

The transmission mechanism includes a first gear and a second gear connected by horizontal transmission;

The first gear is connected to the output shaft of the driving mechanism;

The second gear is connected with the lead screw.

go a step further,

The transmission mechanism further includes a plurality of transmission gear assemblies. The transmission gear assembly includes a transmission shaft and a transmission gear sleeved outside the transmission shaft;

The transmission shaft is parallel to the lead screw;

The first gear, a number of the transmission gears and the second gear are sequentially connected in horizontal transmission.

go a step further,

The transmission gear has a first meshing portion and a second meshing portion that are sequentially provided along the length direction of the transmission shaft;

The first meshing portion is connected to the first gear transmission;

The second meshing portion is drivingly connected to the second gear.

go a step further,

The transmission gear includes a first transmission gear and a second transmission gear arranged in sequence along the length direction of the transmission shaft;

The first transmission gear is drivingly connected to the first gear;

The second transmission gear is drivingly connected to the second gear.

go a step further,

It also includes a guide mechanism, which includes a guide post and a guide hole provided in the nut;

The guide post is installed in the guide hole and is parallel to the lead screw; the nut can move along the length direction of the guide post.

go a step further,

It also includes a holder, which is installed inside the mobile phone housing and is configured to support the lead screw and the guide post.

go a step further,

Also includes a blocking member, the blocking member includes a horizontal portion and a vertical portion;

The horizontal part is connected to the driving mechanism;

The vertical portion is mounted on the holder.

go a step further,

It also includes an end cover, which is mounted on the end surface of the holder and is configured to support the transmission mechanism.

A mobile phone includes the camera telescopic device.

Combining the above technical solutions, the beneficial effects achieved by this application are:

The drive mechanism and the transmission mechanism rotate forward, and the drive screw rotates forward, which causes the nut and the screw to mesh with the transmission and rise, driving the camera to extend outside the mobile phone case; the drive mechanism and the transmission mechanism are reversed, and the drive screw is reversed, causing the nut to The lead screw meshes with the drive and descends, driving the camera to retract into the interior of the mobile phone casing, so as to achieve the expansion and contraction of the camera relative to the mobile phone casing. Normally, the camera is retracted inside the mobile phone case, which can protect the camera from damage caused by accidental operations such as collision or friction. At the same time, the mobile phone screen does not need to reserve space for the camera, which can increase the screen ratio of the mobile phone.

The transmission mechanism is connected to the output shaft of the drive mechanism; the screw is connected to the transmission mechanism. The transmission mechanism converts the power of the drive mechanism to drive the screw to rotate, so that the screw and the output shaft of the drive mechanism can be arranged in parallel without having to In the same straight line, the transmission mechanism can be connected to the top of the drive mechanism and the top of the lead screw, respectively, or to the bottom of the drive mechanism and the bottom of the lead screw, which reduces the length dimension. In addition, the transmission mechanism can also be connected to the top of the drive mechanism and the bottom of the screw, respectively, to avoid that the screw and the drive mechanism are too long on the same straight line, which expands the installation flexibility of this application and enables the staff to arrange the mobile phone case reasonably The space inside the body improves the space utilization rate. At the same time, the accuracy of using screw drive is higher. In addition, because the transmission mechanism reduces the length size and improves the space utilization rate, the difficulty of assembling the various mechanisms inside the mobile phone housing is effectively reduced.

BRIEF DESCRIPTION

In order to more clearly explain the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the specific embodiments or the description of the prior art. Obviously, the appended The drawings are some embodiments of the present application. For those of ordinary skill in the art, without paying any creative labor, other drawings may be obtained based on these drawings.

FIG. 1 is an isometric view of a camera telescopic device in the prior art;

2 is a schematic structural diagram of a camera telescopic device provided by an embodiment of the present application;

3 is a partial enlarged view of a camera telescopic device provided by an embodiment of the present application;

FIG. 4 is an isometric view of a camera telescopic device provided by an embodiment of the present application.

Icons: 1'-base frame; 2'-screw; 3'-drive device; 4'-nut; 5'-push block; 31'-motor; 32'-planetary reducer; 100-transmission mechanism; 200-wire Bar; 300-nut; 400-drive mechanism; 500-guide mechanism; 600-retainer; 700-stopper; 110-first gear; 120-second gear; 130-drive gear assembly; 131-drive shaft; 132 -Transmission gear; 133-first meshing portion; 134-second meshing portion; 140-end cap; 510-guide post; 710-horizontal portion; 720-vertical portion.

detailed description

The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of this application.

In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, just to facilitate the description of this application and simplify the description, rather than to indicate or imply that the device or element referred to must have a specific orientation or take a specific orientation The construction and operation cannot be understood as a limitation of this application. In addition, the terms "first", "second", and "third" are for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connected" and "connection" should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components. For those of ordinary skill in the art, the specific meaning of the above terms in this application can be understood in specific situations.

The following describes Embodiment 1 to Embodiment 2 in detail with reference to the drawings.

Example 1

This embodiment provides a camera telescopic device. Please refer to FIGS. 2 to 4 together. 2 is a schematic structural diagram of a camera telescopic device provided by an embodiment of the present application; FIG. 3 is a partially enlarged view of the camera telescopic device provided by an embodiment of the present application;

Including transmission mechanism 100, screw 200, nut 300 and drive mechanism 400; transmission mechanism 100 is connected to the output shaft of drive mechanism 400; screw 200 is connected to transmission mechanism 100; nut 300 is connected to the camera and meshed with screw 200 for transmission In order to drive the camera up and down; the output shaft of the driving mechanism 400 is parallel to the screw 200.

The drive mechanism 400 and the transmission mechanism 100 rotate forward, and the drive screw 200 rotates forward, so that the nut 300 meshes with the screw 200 to drive and rise, driving the camera to extend out of the mobile phone case; the drive mechanism 400 and the transmission mechanism 100 reverse, and the drive wire The reversing of the lever 200 causes the nut 300 and the screw 200 to mesh and drive and descend, driving the camera to retract into the interior of the mobile phone housing, so as to achieve the expansion and contraction of the camera relative to the mobile phone housing. Normally, the camera is retracted inside the mobile phone case, which can protect the camera from damage caused by accidental operations such as collision or friction. At the same time, the mobile phone screen does not need to reserve space for the camera, which can increase the screen ratio of the mobile phone.

The transmission mechanism 100 is connected to the output shaft of the drive mechanism 400; the screw 200 is connected to the transmission mechanism 100, and the transmission mechanism 100 converts the power of the drive mechanism 400 to drive the screw 200 to rotate, so that the output of the screw 200 and the drive mechanism 400 The shafts can be arranged in parallel without having to be on the same straight line. The transmission mechanism 100 can be connected to the top of the drive mechanism 400 and the top of the screw 200 respectively, or to the bottom of the drive mechanism 400 and the bottom of the screw 200, shortening Length dimension. In addition, the transmission mechanism 100 can also be connected to the top of the drive mechanism 400 and the bottom of the screw 200, respectively, to avoid that the screw 200 and the drive mechanism 400 are too long on the same straight line, which expands the installation flexibility of this embodiment and makes the work The personnel can reasonably arrange the space inside the mobile phone casing, improving the space utilization rate. At the same time, the accuracy of using the screw 200 transmission is higher. In addition, since the transmission mechanism 100 reduces the length dimension and improves the space utilization rate, the difficulty of assembling the various mechanisms inside the mobile phone housing is effectively reduced.

Among the alternatives of this embodiment, more preferably,

The transmission mechanism 100 includes a first gear 110 and a second gear 120 connected horizontally; the first gear 110 is connected to the output shaft of the drive mechanism 400; and the second gear 120 is connected to the screw 200.

Specifically, the driving mechanism 400 is a motor; the first gear 110 is sheathed outside the output shaft of the motor; the second gear 120 is sheathed outside the screw 200, and the second gear 120 can be riveted to the screw 200. The first gear 110 and the second gear 120 convert the power output by the drive mechanism 400 in the axial direction of the output shaft into power perpendicular to the axial direction of the output shaft, transmit the power to the screw 200, and convert the power to The length direction of the screw 200. The transmission mechanism 100 enables the screw 200 and the output shaft of the drive mechanism 400 to be arranged in parallel without having to be on the same straight line. The transmission mechanism 100 can be connected to the top of the drive mechanism 400 and the top of the screw 200 respectively, or can be separately connected to the drive mechanism The bottom of the 400 is connected to the bottom of the screw 200 to shorten the length dimension. In addition, the transmission mechanism 100 can also be connected to the top of the drive mechanism 400 and the bottom of the screw 200, respectively, to avoid that the screw 200 and the drive mechanism 400 are too long on the same straight line, which expands the installation flexibility of this embodiment and makes the work The personnel can reasonably arrange the space inside the mobile phone casing, improving the space utilization rate. At the same time, the accuracy of using the screw 200 transmission is higher. In addition, since the transmission mechanism 100 reduces the length dimension and improves the space utilization rate, the difficulty of assembling the various mechanisms inside the mobile phone housing is effectively reduced.

Among the alternatives of the transmission mechanism 100, more preferably,

The transmission mechanism 100 further includes a plurality of transmission gear assemblies 130. The transmission gear assembly 130 includes a transmission shaft 131 and a transmission gear 132 sleeved outside the transmission shaft 131; the transmission shaft 131 is parallel to the screw 200; the first gear 110, a plurality of transmission gears 132 and Both the second gear 120 and the transmission gear 132 are sequentially connected in horizontal transmission.

Since the diameters of the first gear 110 and the second gear 120 are limited by the thickness of the mobile phone housing, there may be motion interference between the screw 200 and the driving mechanism 400, so a number of intermeshed transmission gear assemblies 130 are provided at the two The transmission gear assembly 130 on the side meshes with the first gear 110 and the second gear 120, respectively. At the same time, the transmission gear assembly 130 can also position the first gear 110 and the second gear 120 at different horizontal positions, so that this embodiment can set the position of the transmission mechanism 100 according to the space layout inside the mobile phone housing, thereby improving space utilization.

further,

The transmission gear 132 has a first meshing portion 133 and a second meshing portion 134 that are sequentially provided along the length direction of the transmission shaft 131; the first meshing portion 133 is drivingly connected with the first gear 110; the second meshing portion 134 is driven with the second gear 120 connection.

The configuration in which the transmission gear 132 is provided with the first engagement portion 133 and the second engagement portion 134 can reduce the volume of the transmission gear assembly 130.

But not limited to this, the transmission gear 132 may also include a first transmission gear and a second transmission gear installed in sequence along the axis direction of the transmission shaft 131; the first transmission gear is drivingly connected with the first gear 110; the second transmission gear is connected with the second The gear 120 is drivingly connected.

Among the alternatives of this embodiment, more preferably,

The camera telescopic device further includes a guide mechanism 500, which includes a guide post 510 and a guide hole provided in the nut 300; the guide post 510 is installed in the guide hole and is parallel to the screw 200; the nut 300 can be along the length of the guide post 510 motion.

The guide post 510 is provided to enable the nut 300 to accurately drive the camera to extend or retract to avoid friction with the mobile phone case.

Among the alternatives of this embodiment, more preferably,

The camera telescopic device further includes a holder 600, which is installed inside the mobile phone housing and configured to support the lead screw 200 and the guide post 510.

The retainer 600 can support both ends of the screw 200 and is configured to increase the strength of the screw 200 to avoid damage and extend its service life.

further,

The camera telescopic device further includes a blocking member 700 including a horizontal portion 710 and a vertical portion 720; the horizontal portion 710 is connected to the driving mechanism 400; and the vertical portion 720 is mounted on the holder 600.

The blocking member 700 is configured to fix the driving mechanism 400 to ensure that the driving mechanism 400 can work normally.

go a step further,

The camera telescopic device further includes an end cover 140 that is mounted on the end surface of the holder 600 and is configured to support the transmission mechanism 100.

The transmission shaft 131 of the transmission mechanism 100 is movably disposed on the end cover 140.

Example 2

This embodiment is another preferred solution juxtaposed with Embodiment 1. The technical solution disclosed in Embodiment 1 except for distinguishing technical features belongs to the scope disclosed in this embodiment, and Embodiment 1 outside of distinguishing technical features The disclosed technical solution will not be described repeatedly.

This embodiment provides a mobile phone. Please refer to FIGS. 2 to 4 together. 2 is a schematic structural diagram of a camera telescopic device provided by an embodiment of the present application; FIG. 3 is a partially enlarged view of the camera telescopic device provided by an embodiment of the present application;

Including the camera telescopic device.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or replacements do not deviate from the essence of the corresponding technical solutions of the technical solutions of the embodiments of the present application. range.

Claims

A camera telescopic device, characterized in that it includes a transmission mechanism (100), a screw (200), a nut (300) and a drive mechanism (400);

The transmission mechanism (100) is connected to the output shaft of the drive mechanism (400);

The screw (200) is connected to the transmission mechanism (100);

The nut (300) is connected to the camera, and meshes with the lead screw (200) to drive the camera to move up and down;

The output shaft of the driving mechanism (400) is parallel to the lead screw (200).
The camera telescopic device according to claim 1, characterized in that the transmission mechanism (100) includes a first gear (110) and a second gear (120) connected horizontally;

The first gear (110) is connected to the output shaft of the driving mechanism (400);

The second gear (120) is connected to the lead screw (200).
The telescopic device of the camera according to claim 2, characterized in that the transmission mechanism (100) further includes a plurality of transmission gear assemblies (130), the transmission gear assembly (130) includes a transmission shaft (131) and a sleeve Describe the transmission gear (132) outside the transmission shaft (131);

The transmission shaft (131) is parallel to the lead screw (200);

The first gear (110), a number of the transmission gears (132) and the second gear (120) are sequentially connected in a horizontal transmission.
The telescopic device of a camera according to claim 3, characterized in that the transmission gear (132) has a first meshing portion (133) and a second meshing portion (133) that are sequentially provided along the length of the transmission shaft (131) 134);

The first meshing portion (133) is drivingly connected to the first gear (110);

The second meshing portion (134) is drivingly connected to the second gear (120).
The telescopic device of a camera according to claim 3, characterized in that the transmission gear (132) includes a first transmission gear and a second transmission gear arranged in sequence along the length of the transmission shaft (131);

The first transmission gear is in drive connection with the first gear (110);

The second transmission gear is in drive connection with the second gear (120).
The camera telescopic device according to claim 1, further comprising a guide mechanism (500), the guide mechanism (500) includes a guide post (510) and a guide hole provided in the nut (300);

The guide post (510) is installed in the guide hole and is parallel to the lead screw (200); the nut (300) can move along the length direction of the guide post (510).
The camera telescopic device according to claim 6, further comprising a holder (600), the holder (600) is installed inside the mobile phone housing, and is configured to support the screw (200) and the Guide post (510).
The camera telescopic device according to claim 7, further comprising a blocking member (700), the blocking member (700) includes a horizontal portion (710) and a vertical portion (720);

The horizontal part (710) is connected to the driving mechanism (400);

The vertical portion (720) is mounted on the holder (600).
The camera telescopic device according to claim 8, further comprising an end cover (140), the end cover (140) is installed on an end surface of the holder (600), and is configured to support the transmission mechanism (100).
A mobile phone, characterized by comprising the camera telescopic device according to any one of claims 1-9.