WO2022042394A1

WO2022042394A1 - Telescopic mechanism and electronic device

Info

Publication number: WO2022042394A1
Application number: PCT/CN2021/113259
Authority: WO
Inventors: 张宪栋; 蒋厚生
Original assignee: 维沃移动通信有限公司
Priority date: 2020-08-25
Filing date: 2021-08-18
Publication date: 2022-03-03
Also published as: CN111951684B; CN111951684A

Abstract

A telescopic mechanism (30) and an electronic device. The telescopic mechanism (30) comprises a gear (34), a rack, and a connecting rod. The gear (34) is in engagement connection to the rack. One end of the connecting rod is connected to the rack. During the rotation of the gear (34), one end of the connecting rod where the rack is connected moves in a first direction, and one end of the connecting rod where the rack is distant moves in a second direction, the first direction being perpendicular to the second direction. The solution provided by the present application solves the problems of large thickness and large occupied carrying space of the existing large-screen electronic device.

Description

Telescopic mechanism and electronic equipment

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202010864049.7 filed in China on Aug. 25, 2020, the entire contents of which are incorporated herein by reference.

technical field

The present application relates to the field of communication technologies, and in particular, to a telescopic mechanism and an electronic device.

Background technique

As the functions of electronic devices become more and more powerful, more and more users use the electronic devices, and people have higher and higher requirements on the appearance and practicability of the electronic devices. In the related art, in order to meet the requirement of a large screen of an electronic device, the electronic device is usually designed in a foldable form, and can have a larger screen when the electronic device is in an unfolded state. However, when a foldable electronic device is carried by a user in a folded state, it usually has a relatively large thickness, and the electronic device in an unfolded state also requires a relatively large carrying space. Therefore, the existing large-screen electronic devices have the problems of large thickness and large carrying space.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present application is to provide a telescopic mechanism and an electronic device, which can solve the problems of large thickness and large carrying space in the existing large-screen electronic devices.

In order to solve the above-mentioned technical problems, the present application is implemented as follows:

In a first aspect, an embodiment of the present application provides a telescopic mechanism, the telescopic mechanism includes a gear, a rack and a connecting rod, the gear and the rack are meshed and connected, and one end of the connecting rod is connected to the rack connect;

During the rotation of the gear, the end of the connecting rod connected to the rack moves in a first direction, and the end of the connecting rod away from the rack moves in a second direction, the first direction perpendicular to the second direction.

In a second aspect, an embodiment of the present application further provides an electronic device, including a casing, a display screen, and the telescopic mechanism according to the first aspect, the display screen is covered on the casing, and the casing includes a first casing part and a second casing part, the first casing part is movably connected with the second casing part;

Wherein, the gear of the telescopic mechanism is fixedly connected with the first housing part, and the end of the connecting rod away from the rack is connected with the second housing part;

During the rotation of the gear, the connecting rod pushes the second housing part to move in the second direction, and the distance between the first housing part and the second housing part gradually increases or gradually decrease, so as to drive the display area of the flexible display screen to gradually increase or decrease.

In the telescopic mechanism provided by the embodiment of the present application, the rack is meshed with the gear, and one end of the rack is connected with a connecting rod. When the gear rotates to drive the rack to expand and contract, it can drive the connecting rod to move, and the movement directions of the two ends of the connecting rod are perpendicular to each other. , and further when other devices are connected to the end of the connecting rod away from the rack, the other devices can be pushed to move, for example, the other devices can be pushed to achieve telescopic motion, and the overall volume and occupied space of the other devices can be reduced.

Description of drawings

1 is a structural diagram of a telescopic mechanism provided by an embodiment of the present application;

Fig. 2 is the enlarged view of A in Fig. 1;

3 is a structural diagram of a first link in a telescopic mechanism provided by an embodiment of the present application;

4 is one of the structural diagrams of an electronic device in a retracted state provided by an embodiment of the present application;

5 is one of the structural diagrams of an electronic device provided in an embodiment of the present application in an extended state;

6 is the second structural diagram of an electronic device provided in an embodiment of the present application in an extended state;

7 is a cross-sectional view of an electronic device provided in an embodiment of the present application in an extended state;

FIG. 8 is the second structural diagram of an electronic device in a retracted state provided by an embodiment of the present application;

FIG. 9 is a cross-sectional view of an electronic device provided in an embodiment of the present application in a retracted state.

detailed description

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

The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and distinguish between "first", "second", etc. The objects are usually of one type, and the number of objects is not limited. For example, the first object may be one or more than one. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the associated objects are in an "or" relationship.

The telescopic mechanism and the electronic device provided by the embodiments of the present application will be described in detail below through specific embodiments and application scenarios with reference to the accompanying drawings.

The embodiment of the present application provides a telescopic mechanism. 1 to 9, the telescopic mechanism 30 includes a gear 34, a rack and a connecting rod, the gear 34 is meshed with the rack, and one end of the connecting rod is connected with the rack; 34 During the rotation process, the end of the connecting rod connected to the rack moves in a first direction, and the end of the connecting rod away from the rack moves in a second direction, the first direction and the The second direction is vertical.

In the telescopic mechanism 30 provided in the embodiment of the present application, the rack is meshed with the gear 34, and one end of the rack is connected with a connecting rod. The movement directions are perpendicular to each other, and when the end of the connecting rod away from the rack is connected with other devices, it can also push other devices to move, such as pushing other devices to achieve telescopic motion, reducing the overall volume and occupied space of other devices. .

For example, when the telescopic mechanism 30 is used in electronic equipment, the end of the connecting rod away from the rack is connected to the housing 10 of the electronic equipment, and when the gear 34 rotates, it will also drive the connecting rod to move, and the connecting rod is in the first The movement in the same direction as the rack and the movement of the connecting rod in the second direction may be to push the casing 10 to realize the telescopic movement, for example, to push the casing 10 to switch between the retracted state and the extended state. In this way, the electronic device can be switched between a large volume and a small volume, which is more convenient for the user to use and carry the electronic device.

Further, the housing 10 of the electronic device may be provided with a flexible display screen 20, and when the housing 10 is switched between the retracted state and the extended state, the flexible display screen 20 may be correspondingly in a smaller display area and a larger display area switch between. In this way, the electronic device can also meet the user's demand for a large screen. Compared with the foldable electronic device, which has a larger thickness, the present application realizes the electronic device housing 10 and the flexible display screen 20 through the movement of the telescopic mechanism 30 . The change of the display area makes the thickness of the electronic device smaller and more convenient for the user to carry.

It should be noted that the electronic devices provided in the embodiments of the present application are electronic devices with display functions, such as mobile phones, tablet computers, notebook computers, wearable devices, smart TVs, etc., which are not specifically limited in the present application.

In order to better illustrate the technical features and beneficial effects of the telescopic mechanism provided by the present application, the following embodiments will specifically describe the application of the telescopic mechanism to an electronic device.

Please further refer to FIG. 6 , the housing 10 of the electronic device includes a first housing part 11 and a second housing part 12 , and the connecting rod includes a first connecting rod 301 and a second connecting rod 302 ; the first connecting rod 301 is connected to the first housing part 11, the second link 302 is connected to the second housing part 12, and the first link 301 and the second link 302 are connected to the same position of the rack , during the rotation of the gear 34, the angle between the first connecting rod 301 and the second connecting rod 302 gradually increases or decreases gradually. Wherein, when a first included angle is formed between the first connecting rod 301 and the second connecting rod 302, the first housing portion 11 and the second housing portion 12 are separated by a first distance; When a second included angle is formed between the first connecting rod 301 and the second connecting rod 302, the first housing part 11 and the second housing part 12 are separated by a second distance; the first The included angle is greater than the second included angle, and the first distance is greater than the second distance. In this way, through the arrangement of the two connecting rods, the casing can be better pushed to realize the telescopic movement.

The first link 301 of the telescopic mechanism 30 is connected to the first housing part 11 , the second link 302 is connected to the second housing part 12 , and the rack can drive the first connecting rod 301 and/or the second connecting rod 302 Move, so that the first connecting rod 301 and the second connecting rod 302 switch between the first angle and the second angle. For example, the first connecting rod 301 may be fixed relative to the rack, and only the second connecting rod 302 is movable, so that the angle between the first connecting rod 301 and the second connecting rod 302 changes; If the connecting rod 301 is fixed, the first housing part 11 will not move, and the movement of the second connecting rod 302 pushes the second housing part 12 to move, so that the first housing part 11 and the second housing part 12 are moved. The separation distance between the bodies 12 varies. When the first housing part 11 and the second housing part 12 are separated by a first distance, the electronic device is in the first state, and the flexible display screen 20 displays the first display area; the first connecting rod 301 and the second connecting rod 302 are separated by a second At the distance, the electronic device is in the second state, and the flexible display screen 20 displays the second display area.

It can be understood that, in other embodiments, the rack can also only drive the first connecting rod 301 to move, or simultaneously drive the first connecting rod 301 and the second connecting rod 302 to move, which will not be repeated here. In the embodiment of the present application, the rack drives the first connecting rod 301 and/or the second connecting rod 302 to move, thereby driving the first housing part 11 and/or the second housing part 12 to move, so that the housing 10 is Toggles between stretched and contracted states.

Referring again to FIGS. 1 to 6 , the rack includes a first rack 311 and a second rack 312 , and the first rack 311 and the second rack 312 are oppositely disposed on both sides of the gear 34 ; During the rotation of the gear 34, the moving directions of the first rack 311 and the second rack 312 are opposite. Optionally, the first link 310 and the second link 302 may be connected to the first rack 311 , or may also be connected to the second rack 312 .

Further, the connecting rod further includes a third connecting rod 303 and a fourth connecting rod 304, the third connecting rod 303 and the fourth connecting rod 304 are connected to the same position of the second rack 312, the first connecting rod 301 and The second link 302 is connected to the same position of the first rack 311; during the rotation of the gear 34, the angle between the third link 303 and the fourth link 304 gradually increases or decreases gradually .

Understandably, the first rack 311 and the second rack 312 are located on opposite sides of the gear 34, respectively, and the rotation of the gear 34 will simultaneously drive the first rack 311 and the second rack 312 to the opposite sides. The movement of the first rack 311 will push the angle between the first link 301 and the second link 302 to gradually increase or decrease, and at the same time the movement of the second rack 312 will push the third link The included angle between the rod 303 and the fourth link 304 gradually increases or decreases gradually, and the angles of the two included angles are the same.

Specifically, the third link 303 can be connected to the first housing part 11 , the fourth link 304 can be connected to the second housing part 12 , and the second rack 312 can be connected to the third link 303 and the fourth link 304 , which is used to drive the third link 303 and the fourth link 304 to switch between the third angle and the fourth angle, so as to drive the casing to be in an extended state or a retracted state. Wherein, when the third link 303 and the fourth link 304 form a third angle, the first link 301 and the second link 302 form a first angle; When the fourth link 304 forms a fourth angle, the first link 301 and the second link 302 form a second angle; the third angle is equal to the first angle, and the fourth angle is equal to the second The angles are equal.

That is to say, the first link 301 and the third link 303 are both connected to the first housing part 11 , the second link 302 and the fourth link 304 are both connected to the second housing part 12 , and the second rack 312 can drive the third link 303 and/or the fourth link 304 to move, so that the third link 303 and the fourth link 304 switch between the third angle and the fourth angle; and, the second tooth While the bar 312 drives the third link 303 and/or the fourth link 304 to move, the first rack 311 is capable of driving the first link 301 and/or the second link 302 to move, so that the first housing part The separation distance between 11 and the second housing part 12 varies. Wherein, the first link 301 and the third link 303 may be connected to opposite sides of the first housing part 11 respectively, and the second link 302 and the fourth link 304 may be connected to the second housing part 12 respectively the opposite sides of the .

In an optional embodiment, the third link 303 may be fixed relative to the second rack 312, and the second rack 312 is used to drive the fourth link 304 to move, and then it will also drive the second shell The body portion 12 is moved such that the separation distance between the second housing portion 12 and the first housing portion 11 changes. When the first housing part 11 and the second housing part 12 are separated by a first distance, a first included angle is formed between the first link 301 and the second link 302 , the third link 303 and the fourth link 304 There is a third included angle between them. At this time, the casing 10 is in an extended state, and the flexible display screen 20 displays the first display area; when the first casing part 11 and the second casing part 12 are separated by a second distance, the first A second angle is formed between the connecting rod 301 and the second connecting rod 302, and a fourth angle is formed between the third connecting rod 303 and the fourth connecting rod 304. At this time, the housing 10 is in a retracted state, and the flexible display screen 20 displays The second display area.

It should be noted that, in other embodiments, the first rack 311 and the second rack 312 may drive the four links to move simultaneously, which will not be repeated here. Compared with only two connecting rods, in the embodiment of the present application, by setting four connecting rods, one connecting rod is connected to the opposite sides of the first housing part 11 and the second housing part 12, which ensures that the The stability of the first casing part 11 and the second casing part 12 during the movement also improves the smoothness of the movement of the first casing part 11 and the second casing part 12 .

In an optional embodiment, the gear 34 may be fixed in the housing 10, and the gear 34 may also be connected with a motor 35, and the motor 35 is connected with the processor of the electronic device. It can be understood that the processor can control the motor 35 to rotate forward or reverse, so as to drive the gear 34 to rotate forward or reverse. For example, when the gear 34 rotates forward, the first rack 311 is driven to move toward the first direction, and the second rack 312 is driven to move toward the second direction; when the gear 34 is reversed, the first rack 311 is driven toward the second direction. It moves in two directions, and drives the second rack 312 to move toward the first direction. In this way, through the cooperation of the gear 34 with the first rack 311 and the second rack 312 , the electronic device is finally driven to switch between the first state and the second state, so that the electronic device can realize a large screen according to user requirements. The display or smaller display area improves the flexibility of the electronic device; and when the smaller display area is displayed, the overall volume of the electronic device is smaller, does not need to occupy a large space, and is more convenient for customers to carry.

Please refer to FIG. 1 to FIG. 6 , the telescopic mechanism 30 further includes a fixing member, the gear 34 is fixedly connected with the fixing member, and the fixing member includes a first side 321 and a second side 322 arranged oppositely, the first rack 311 is movably connected with the first side 321 and can move relative to the first side 321, and the second rack 312 is movably connected with the second side 322 and can move relative to the second side Edge 322 movement. That is to say, the first side 321 and the second side 322 are fixed, and the first rack 311 is movably connected to the first side 321. For example, the first rack 311 is provided with a guide rail, and the first side 321 is provided with a guide groove adapted to the guide rail, so that the first rack 311 can move relative to the first side 321 in the first direction and the second direction. Optionally, the second side 322 and the second rack 312 can also be connected in the same manner, and the second rack 312 can also move relative to the second side 322 in the first direction and the second direction. In this way, through the arrangement of the first side 321 and the second side 322, the installation stability of the first rack 311 and the second rack 312 in the housing 10 is ensured, and the first rack 311 and the second rack 312 are also ensured. The movement direction of the two racks 312 will not deviate, so as to ensure that the electronic device can switch between the first state and the second state accurately.

Optionally, the telescopic mechanism 30 further includes a first telescopic member 331 , the first end of the first telescopic member 331 is connected to the first side 321 of the fixing member, and the first end of the first telescopic member 331 is connected to the first side edge 321 of the fixing member. The two ends are connected to the driven member, for example, to the first housing part 11 of the housing 10, and the end of the connecting rod away from the rack is connected to the driven member; the connecting rod drives the driven member During the movement of the moving member in the second direction, the driven member drives the first telescopic member 331 to expand or contract along the second direction. In the embodiments of the present application, the driven member is a casing as an example for description. The end of the connecting rod away from the rack can be connected to the first housing part 11 of the housing. When the connecting rod drives the first housing part 11 to move in the second direction, because one end of the first telescopic member 331 is connected to the first The casing parts 11 are connected, and the movement of the first casing part 11 will also drive the first telescopic element 331 to expand or contract in the second direction.

Optionally, the telescopic mechanism 30 further includes a second telescopic member 332, the first end of the second telescopic member 332 is connected to the second side edge 322, and the second end of the second telescopic member 332 is connected to the second side edge 322. The second housing portion 12 of the housing 10 is connected; when the connecting rod drives the second housing portion 12 to move in the second direction, the second housing portion 12 drives the second telescopic member 332 expand or contract in the second direction.

As described above, the rack 311 may drive at least one of the first link 301 and the second link 302 to move, and then drive at least one of the first telescopic member 331 and the second telescopic member 332 accordingly. One is to achieve telescopic motion, and when the first telescopic element 331 and/or the second telescopic element 332 are in an extended state, the first casing part 11 and the second casing part 12 are spaced apart The first distance; when the first telescopic element 331 and/or the second telescopic element 332 is in a shortened state, the first casing part 11 and the second casing part 12 are separated by a distance the second distance.

In the embodiment of the present application, both ends of the first telescopic member 331 are respectively connected to the first housing portion 11 and the first side edge 321 , and both ends of the second telescopic member 332 are respectively connected to the second housing portion 12 and the second side edge 322, the first telescopic element 331 and the second telescopic element 332 can realize telescopic motion. Wherein, when the electronic device is in the first state, the housing 10 is in the extended state, and the first housing part 11 and the second housing part 12 are separated by the first distance. At least one of the two telescopic elements 332 is in an extended state. For example, when the first rack 311 and the second rack 312 only drive the first link 301 and the third link 303 to move, the first telescopic member 331 is in an extended state, and the second telescopic member 332 can is in a retracted state; if the first rack 311 and the second rack 312 also drive the second link 302 and the fourth link 304 to move, both the first telescopic member 331 and the second telescopic member 332 are in an extended state; If the first rack 311 and the second rack 312 only drive the second link 302 and the fourth link 304 to move, then the second telescopic member 332 is in an extended state, and the first telescopic member 331 may be in a retracted state condition.

The arrangement of the first telescopic piece 331 and the second telescopic piece 332 strengthens the installation stability of the first side edge 321, the first housing part 11, the second side edge 322 and the second housing part 12, and can also protect the The first housing part 11 and the second housing part 12 play a supporting role to avoid possible bending or deformation of the first housing part 11 and the second housing part 12 due to repeated movements. Optionally, the first telescopic element 331 and the second telescopic element 332 may be springs.

In the embodiment of the present application, the first telescopic member 331 includes a first connecting member 3311 and a first movable member 3312, and the end of the first connecting member 3311 close to the first side edge 321 is the first telescopic member 3311 The first end of the first movable member 331 , the end of the first movable member 3312 away from the first side edge 321 is the second end of the first telescopic member 331 , the first movable member 3312 and the first The connecting piece 3311 is movably connected, and can move relative to the first connecting piece 3311 to make the first telescopic piece 331 expand or contract along the second direction.

The second telescopic piece 332 includes a second connecting piece 3321 and a second movable piece 3322 , and one end of the second connecting piece 3321 close to the second side edge 322 is the first end of the second telescopic piece 332 , the end of the second movable member 3322 away from the second side edge 322 is the second end of the second telescopic member 332, and the second movable member 3322 is movably connected with the second connecting member 3321, and can move relative to the second connecting member 3321 to make the second telescopic member 332 expand or contract along the second direction.

The first connecting piece 3311 is connected to the first side 321, the first side 321 and the first connecting piece 3311 are both fixed and cannot move, and the first movable piece 3312 can move relative to the first connecting piece 3311, Further, the first telescopic element 331 can be extended or shortened. The second connecting piece 3321 is connected to the second side edge 322 , the second side edge 322 and the second connecting piece 3321 are both fixedly arranged, and the second movable piece 3322 can move relative to the second connecting piece 3321 , so that the second telescopic piece 332 To achieve elongation or shortening.

Optionally, one of the first connecting member 3311 and the first movable member 3312 is a sliding rail, and the other is a sliding groove; the second connecting member 3321 and the second movable member 3322 One of them is a slide rail, and the other is a chute. For example, the first connecting member 3311 and the second connecting member 3321 are both sliding grooves, and the first movable member 3312 and the second movable member 3322 are both sliding rails. And the extension and shortening of the second telescopic member 332 ensures that the electronic device can be switched between the first state and the second state.

The embodiment of the present application further provides an electronic device. Please refer to FIG. 1 to FIG. 9. The electronic device includes a housing 10, a flexible display screen 20, and the above-mentioned telescopic mechanism 30. The flexible display screen 20 covers all the On the housing 10, the housing includes a first housing part 11 and a second housing part 12, the first housing part 11 and the second housing part 12 are movably connected; wherein, the telescopic mechanism 30 The gear 34 is fixedly connected with the second housing part 12, and the end of the connecting rod away from the rack is connected with the first housing part 11; during the rotation of the gear 34, the The connecting rod pushes the first housing part 11 to move in the second direction, and the distance between the first housing part 11 and the second housing part 12 gradually increases or decreases, so as to drive the display of the flexible display screen 20 The area gradually increases or decreases gradually.

It can be understood that the rotation of the gear 34 can drive the movement of the rack, and the rack will also drive the movement of the connecting rod, thereby pushing the first housing part 11 to move in a direction away from or close to the second housing part 12 , and then In order to realize the expansion and contraction of the casing 10, the expansion and contraction of the casing 10 will also drive the display area of the flexible display screen 20 to increase or decrease, so that the electronic device can not only meet the user's demand for a large screen, but also switch to a small size for It is convenient for users to carry.

As mentioned above, the rack may include a first rack 311 and a second rack 312, the first rack 311 is connected with the first link 301 and the second link 302, and the first link 301 is far from the first link 301. One end of the rack 311 is connected with the first housing part 11, and the end of the second link 302 away from the first rack 311 is connected with the second housing part 12; the second rack 312 is connected with the third link 303 and the first The fourth link 304 is connected, the end of the third link 303 away from the second rack 312 is connected with the first housing part 11 , and the end of the fourth link 304 away from the second rack 312 is connected with the second housing part 12 For connection, the specific movement principle can be referred to the description in the above-mentioned embodiment of the telescopic mechanism, which is not repeated in this embodiment.

Further, when the telescopic mechanism 30 includes a fixed member and a first telescopic member 331, the first end of the first telescopic member 331 is connected to the fixed member, and the second end of the first telescopic member 331 is connected to the first telescopic member 331. The middle portion of the housing portion 11 is connected, and the first housing portion 11 drives the first telescopic member 331 to expand or contract along the second direction when the connecting rod drives the first housing portion 11 to move in the second direction. It can be understood that the first end of the first telescopic element 331 is connected to the fixing element, the first end of the first telescopic element 331 is also fixed, and the second end of the first telescopic element 331 is connected to the first housing part 11 . Further, the movement of the first housing portion 11 will also drive the first telescopic member 331 to perform telescopic movement.

When the telescopic mechanism further includes a second telescopic element 332 , the first end of the second telescopic element 332 is connected to the fixing element, and the second end of the second telescopic element 332 is connected to the middle of the second housing part 12 . When the connecting rod drives the second housing portion 12 to move in the second direction, the second housing portion 12 drives the second telescopic member 332 to expand or contract in the second direction. It can be understood that the first end of the second telescopic element 332 is connected to the fixing element, the first end of the second telescopic element 332 is also fixed, and the second end of the second telescopic element 332 is connected to the second housing part 12 . Further, the movement of the second housing portion 12 will also drive the second telescopic member 332 to perform telescopic movement. The specific structures and movement principles of the first telescopic member 331 and the second telescopic member 332 can be referred to the descriptions in the above-mentioned embodiments of the telescopic mechanism, which will not be repeated in this embodiment.

In the embodiment of the present application, the electronic device further includes a driving mechanism and a transmission mechanism. The driving mechanism is disposed on the first housing portion 11 and is connected to the transmission mechanism, and the transmission mechanism is connected to the flexible display screen 20 . During the rotation of the gear 34, the drive mechanism drives the transmission mechanism to move, and the transmission mechanism drives the display area of the flexible display screen 20 to gradually increase or decrease.

Please refer to Fig. 7 and Fig. 9 further, the driving mechanism is a motor, the transmission mechanism can be a rotating shaft 41 connected with the motor, and the flexible display screen 20 is wound on the rotating shaft 41. The motor may be connected to the processor of the electronic device, and the processor can control the motor to rotate forward or reverse, and then drive the rotating shaft 41 to rotate forward or reverse; for example, when the rotating shaft 41 rotates forward, the flexible display screen 20 displays the first One display area, when the rotating shaft 41 is reversed, the flexible display screen 20 displays the second display area. Through the arrangement of the motor and the rotating shaft 41, the smooth movement of the flexible display screen 20 is ensured, so that the flexible display screen 20 can be switched between different display areas, so that the electronic device can not only meet the user's demand for a large screen, but also can switch To a small size to facilitate the user to carry. ,

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims

A telescopic mechanism, the telescopic mechanism comprises a gear, a rack and a connecting rod, the gear and the rack are meshed and connected, and one end of the connecting rod is connected with the rack;

During the rotation of the gear, the end of the connecting rod connected to the rack moves in a first direction, and the end of the connecting rod away from the rack moves in a second direction, the first direction perpendicular to the second direction.
The telescopic mechanism according to claim 1, wherein the link comprises a first link and a second link, and the first link and the second link are connected to the same position of the rack ;

During the rotation of the gear, the angle between the first link and the second link gradually increases or decreases.
The telescopic mechanism according to claim 2, wherein the rack comprises a first rack and a second rack, and the first rack and the second rack are oppositely arranged on two sides of the gear;

During the rotation of the gear, the moving directions of the first rack and the second rack are opposite.
The telescopic mechanism according to claim 3, wherein the link further comprises a third link and a fourth link, and the third link and the fourth link are connected to the second rack. At the same position, the first link and the second link are connected to the same position of the first rack;

During the rotation of the gear, the angle between the third link and the fourth link gradually increases or decreases.
The telescopic mechanism according to claim 3, further comprising a fixing member, the gear is fixedly connected with the fixing member, the fixing member comprises a first side edge and a second side edge arranged oppositely, the first rack The second rack is movably connected with the first side, and the second rack is movably connected with the second side.
The telescopic mechanism according to claim 5, further comprising a first telescopic piece, the first end of the first telescopic piece is connected to the first side of the fixing piece, and the second end of the first telescopic piece is connected to the first side of the fixing piece. The driven part is connected, and the end of the connecting rod away from the rack is connected with the driven part;

When the connecting rod drives the driven member to move in the second direction, the driven member drives the first telescopic member to expand or contract along the second direction.
The telescopic mechanism according to claim 6, wherein the first telescopic member comprises a first connecting member and a first movable member, and an end of the first connecting member close to the first side is the first connecting member. The first end of the telescopic piece, the end of the first movable piece away from the first side is the second end of the first telescopic piece, and the first movable piece is movably connected with the first connecting piece .
The telescopic mechanism according to claim 6, further comprising a second telescopic element, the first end of the second telescopic element is connected with the second side edge, and the second end of the second telescopic element is connected with the drive connection;

When the connecting rod drives the driven member to move in the second direction, the driven member drives the second telescopic member to expand or contract along the second direction.
The telescopic mechanism according to claim 8, wherein the second telescopic member comprises a second connecting member and a second movable member, and an end of the second connecting member close to the second side is the second connecting member. The first end of the telescopic piece, the end of the second movable piece away from the second side is the second end of the second telescopic piece, and the second movable piece is movably connected with the second connecting piece .
An electronic device, comprising a casing, a flexible display screen, and the telescopic mechanism according to any one of claims 1-9, the flexible display screen is covered on the casing, and the casing includes a first casing a body part and a second housing part, the first housing part is movably connected with the second housing part;

Wherein, the gear of the telescopic mechanism is fixedly connected with the second housing part, and the end of the connecting rod away from the rack is connected with the first housing part;

During the rotation of the gear, the connecting rod pushes the first housing part to move in the second direction, and the distance between the first housing part and the second housing part gradually increases or gradually decrease, so as to drive the display area of the flexible display screen to gradually increase or decrease.
The electronic device according to claim 10, wherein, when the telescopic mechanism comprises a fixing member and a first stretching member, a first end of the first stretching member is connected to the fixing member, and the first stretching member is connected to the fixing member. The second end of the telescopic element is connected with the middle part of the first housing part,

During the process that the connecting rod drives the first housing part to move in the second direction, the first housing part drives the first telescopic member to extend or contract in the second direction.
The electronic device according to claim 11, wherein when the telescopic mechanism further comprises a second telescopic element, a first end of the second telescopic element is connected to the fixing element, and the second telescopic element The second end is connected with the middle of the second housing part,

During the process that the connecting rod drives the second housing portion to move in the second direction, the second housing portion drives the second telescopic member to expand or contract along the second direction.
The electronic device according to claim 10, further comprising a driving mechanism and a transmission mechanism, wherein the driving mechanism is disposed on the first housing portion and is connected to the transmission mechanism, and the transmission mechanism is connected to the flexible display screen;

During the rotation of the gear, the drive mechanism drives the transmission mechanism to move, and the display area of the flexible display screen gradually increases or decreases.