CN113163030B - Folding mechanism, support structure and electronic equipment - Google Patents

Abstract

The application discloses a folding mechanism, a bracket structure and electronic equipment, belonging to the technical field of communication equipment. The folding mechanism includes a first screen support plate, a second screen support plate, a third screen support plate rotatably mounted on the first screen support plate, a fourth screen support plate rotatably mounted on the second screen support plate, and the first screen support plate The first shell seat that is rotatably matched with the plate, the second shell seat and the base that are rotatably matched with the second screen support plate; the first shell seat and the second shell seat are both rotatably connected with the base; in the unfolded state, the second The first side of the three-screen support plate and the fourth screen support plate, and the first screen support plate and the second screen support plate are all located between the second sides, and the first surfaces of the four are flush; in the folded state , the spacing between the first sides is greater than the spacing between the second sides. The above-mentioned folding mechanism can solve the problem of short service life of the display screen due to easy formation of creases on the display screen of current inward-folding electronic equipment.

Description

Folding mechanisms, stand structures and electronics

technical field

The application belongs to the technical field of communication equipment, and in particular relates to a folding mechanism, a support structure and electronic equipment.

Background technique

With the advancement of technology, the styles of electronic devices such as mobile phones are becoming more and more diverse, such as tablet type, slide type and folding type, etc. Among them, folding electronic devices have a large display area and strong portability. And other advantages, and more and more favored by consumers. Foldable electronic devices are generally divided into outward-folding and inward-folding, and the inward-folding type can provide better protection for the display screen and is adopted by more manufacturers. However, during the process of the display screen being folded inward, creases are easily formed on the display screen, resulting in a short service life of the display screen.

Contents of the invention

The present application discloses a folding mechanism, a bracket structure and an electronic device in order to solve the problem of short service life of the display screen due to easy formation of creases on the display screen of the current inward-folding electronic device.

In order to solve the above problems, the embodiment of this application is implemented as follows:

In the first aspect, the embodiment of the present application discloses a folding mechanism, including a first screen support plate, a second screen support plate, a third screen support plate, a fourth screen support plate, a first housing seat, and a second housing seat and base;

The first housing seat is arranged on the first screen support plate, and the first screen support plate is rotatably matched with the first housing seat;

The second housing seat is arranged on the second screen support plate, and the second screen support plate is rotatably matched with the second housing seat;

The third screen support plate is rotatably mounted on the first screen support plate, and the fourth screen support plate is rotatably mounted on the second screen support plate;

The base is provided with a plurality of first rotating parts, and the first housing base and the second housing base are rotationally connected to the plurality of first rotating parts through their respective second rotating parts. ;

The folding mechanism has an unfolded state and a folded state, and in the unfolded state, respective first sides of the first screen support plate and the second screen support plate are located between respective second sides, Both the third screen support plate and the fourth screen support plate are located between the first screen support plate and the second screen support plate, the first screen support plate, the second screen support plate, the first screen support plate The three-screen support plate and the fourth screen support plate are respectively arranged flush with the first surface of the base;

In the folded state, the distance between the respective first sides of the first screen support board and the second screen support board is greater than that of the first screen support board and the second screen support board. The spacing between the respective second sides of the panels.

In the second aspect, the embodiment of the present application discloses a support structure, including a first casing, a second casing, and the folding mechanism described in the first aspect,

The first housing base is fixedly connected to the first housing, and the first housing and the first housing base are provided with an inclined avoidance support surface on a side facing the first screen support plate;

The second housing base is fixedly connected to the second housing, and the second housing and the second housing base are provided with an inclined avoidance support surface on a side facing the second screen support plate;

In the folded state, the first screen support board and the second screen support board are respectively supported on the corresponding inclined avoidance support surfaces.

In the third aspect, the embodiment of the present application discloses an electronic device, including a flexible display screen and the support structure described in the second aspect, the flexible display screen is installed on the support structure, and the flexible display screen can be supported on the The first shell, the second shell, the first screen support plate, the second screen support plate, the third screen support plate and the fourth screen support plate.

An embodiment of the present application provides a folding mechanism, which includes a first screen support plate, a second screen support plate, a third screen support plate, a fourth screen support plate, a first housing seat, a second housing seat and a base, The first screen support plate is rotatably connected with the first housing base, the second screen support plate is rotatably connected with the second housing base, the third screen support plate is rotatably connected with the first screen support plate, and the fourth screen support plate is rotatably connected with the second screen support plate. The screen support plate is pivotally connected. Both the first housing base and the second housing base are rotatably connected to the base, the first screen supporting plate and the second screen supporting plate can not only rotate relative to the first housing base and the second housing base, but the first screen supporting plate It can also be rotated relative to the first housing base, and the second screen support plate can be rotated relative to the second housing base, so that the folding mechanism can switch between the folded state and the unfolded state.

In the unfolded state, the respective first sides of the first screen support board and the second screen support board are located between the respective second sides, and the third screen support board and the fourth screen support board are both located on the first screen Between the support plate and the second screen support plate, the first screen support plate, the second screen support plate, the third screen support plate and the fourth screen support plate are respectively set flush with the first surface of the base, so that the electronic device The first display module and the like provide reliable support to ensure that the first display module can be in a flattened state, providing users with a larger display area.

In the folded state, the distance between the respective first sides of the first screen support board and the second screen support board is greater than the distance between the respective second sides, so that the first screen support board and the second screen The support plate forms a flaring structure, and the flaring of the flaring structure faces the base. During the process of being folded with the folding mechanism, the middle part of the first display module is accommodated by the first screen support plate and the second screen support plate. Where the screen support plate forms a flaring structure, the folding degree of the middle part of the first display module can be relatively small, so that creases can be prevented from forming on the display screens such as the first display module as much as possible, and the display screen can be improved. service life. Moreover, during the use of the electronic device using the above folding mechanism, the overall size of the electronic device in the folded state is relatively small, and the degree of portability is relatively high, which is convenient for users to carry.

In addition, by setting the third screen support plate and the fourth screen support plate, between the first screen support plate and the third screen support plate, between the second screen support plate and the fourth screen support plate, and the third screen support plate The gap between the screen support plate and the fourth screen support plate is relatively small, and can reduce the distance between the first screen support plate and the second screen support plate and the base in the folding mechanism in the unfolded state to a certain extent , reduce the thickness of the folding mechanism, and further reduce the thickness of the electronic equipment using the folding mechanism. At the same time, the base and the first display module of the electronic device can be separated by means of the third screen support plate and the fourth screen support plate, thereby preventing damage to the first display module and improving the service life of the first display module.

Description of drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The schematic embodiments and descriptions of the application are used to explain the application and do not constitute an improper limitation to the application. In the attached picture:

Fig. 1 is a structural schematic diagram of a folding mechanism disclosed in an embodiment of the present application;

Fig. 2 is a schematic diagram of the partial structure including the base in the folding mechanism disclosed in the embodiment of the present application;

Fig. 3 is an exploded view of the structure shown in Fig. 2;

Fig. 4 is an exploded view of a part of the structure of the folding mechanism disclosed in the embodiment of the present application;

Fig. 5 is an exploded view of the partial structure including the third screen support plate in the folding mechanism disclosed in the embodiment of the present application;

FIG. 6 is a schematic diagram of a partial structure of an electronic device disclosed in an embodiment of the present application;

FIG. 7 is an exploded view of the electronic device disclosed in the embodiment of the present application;

Fig. 8 is a schematic diagram of an electronic device disclosed in an embodiment of the present application in an unfolded state;

Fig. 9 is an enlarged view of part of the structure shown in Fig. 8;

FIG. 10 is a schematic cross-sectional view of an electronic device disclosed in an embodiment of the present application in an unfolded state.

Explanation of reference signs:

110-first shell, 120-second shell, 130-first backplane, 140-second backplane,

201-first surface, 202-second surface, 203-first side, 210-first screen support plate, 220-second screen support plate, 230-third screen support plate, 240-fourth screen support plate , 250-the fifth screen support plate,

302-second rotating part, 303-avoidance groove, 310-first housing seat, 320-second housing seat,

410-base, 411-accommodating groove, 412-first rotating part, 420-cover,

510-third rotating part, 520-fourth rotating part, 530-fifth rotating part, 540-sixth rotating part,

610-the first display module,

711-first limiter, 712-second limiter, 713-third limiter, 714-installation, 720-elastic member, 731-first cam sleeve, 732-second cam sleeve, 733- Connecting rod, 741-first synchronous swing arm, 742-second synchronous swing arm, 751-first connecting shaft, 752-second connecting shaft, 770-circlip, 781-first meshing tooth, 782-second meshing Teeth, 791-first gear, 792-second gear.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The technical solutions disclosed in various embodiments of the present application will be described in detail below with reference to the accompanying drawings.

As shown in FIGS. 1-10 , the embodiment of the present application discloses a folding mechanism, a bracket structure, and an electronic device. The electronic device can be a foldable electronic device, and the electronic device can include a first display module 610 and the above-mentioned support structure, and the support structure can include the first housing 110, the second housing 120 and the above-mentioned folding mechanism, and the above-mentioned folding mechanism is adopted, so that Electronic devices are able to switch between folded and unfolded states.

As shown in Figure 5, the folding mechanism disclosed in the embodiment of the present application includes a first screen support plate 210, a second screen support plate 220, a third screen support plate 230, a fourth screen support plate 240, a first housing seat 310, The second housing seat 320 and the base 410 . In order to improve the symmetry of the folding mechanism and improve the folding performance of the entire folding mechanism, the structure of the first screen support plate 210 and the second screen support plate 220 can be arranged symmetrically, and they are respectively arranged on opposite sides of the base 410. The structure of the three screen support boards 230 and the fourth screen support board 240 are arranged symmetrically, and are respectively arranged on opposite sides of the base 410, wherein the third screen support board 230 is arranged on the same side as the first screen support board 210, and the second screen support board 230 is arranged on the same side as the first screen support board 210. The four-screen support plate 240 is set on the same side as the second screen support plate 220; correspondingly, the structures of the first housing base 310 and the second housing base 320 are arranged symmetrically, and the first housing base 310 on the base 410 is matched with the first housing base 310. A rotating part 412 and the first rotating part 412 on the base part 410 and the second housing base 320 are also arranged symmetrically.

The base 410 is the basic structure of the folding mechanism, and the base 410 can provide an installation basis for other components of the folding mechanism, so that other components of the folding mechanism can be installed directly or indirectly on the basis of the base 410. Optionally, the base 410 is a thin plate to reduce the occupied space. Specifically, the base 410 may be a metal plate, and the metal plate can enable the base 410 to have sufficient strength even with a small thickness, so as not to affect the supporting performance of the base 410 .

The base 410 is provided with a plurality of first rotating parts 412, the first housing seat 310 and the second housing seat 320 both include the second rotating part 302, and the plurality of second rotating parts 302 can be combined with the plurality of first rotating parts 412. One correspondingly cooperates with each other, so that both the first housing base 310 and the second housing base 320 can form a stable rotational fit relationship with the base 410, and ensure that the first housing base 310 can pass through the base 410 and the second housing base. 320 connection as one.

Specifically, the number of the first rotating part 412 can be two, one of the two first rotating parts 412 cooperates with the second rotating part 302 of the first housing base 310, and the other cooperates with the second housing base 310 In this case, the two second rotating parts 302 can be symmetrically arranged on the base 410 to ensure that the folding mechanism has better folding performance. Of course, when the number of first rotating parts 412 matched with the first casing seat 310 is multiple, the aforementioned plurality of first rotating parts 412 can be rotated along the axial direction of the base part 410, that is, the rotation of the second rotating part 302 Axially spaced. Correspondingly, the quantity of the first rotating part 412 that cooperates with the second housing seat 320 can also be provided with multiple. By adopting the above technical solution, the reliability of the connection relationship and the rotational fit relationship between the first housing base 310 and the second housing base 320 can be further improved. Wherein, the rotation axis of the second rotation part 302 may be the direction A in FIG. 1 .

The first rotating part 412 and the second rotating part 302 are rotating structural parts that cooperate with each other, for example, the two may be a shaft-hole matching structure. In another embodiment of the present application, one of the first rotating part 412 and the second rotating part 302 may be an arc-shaped groove structure, and the other may be an arc-shaped block structure. In this case , the stability of the rotational fit relationship between the first rotating part 412 and the second rotating part 302 can be improved to a certain extent. Moreover, the base portion 410 may be an arc-shaped structural member, so as to provide a better foundation for the first rotating portion 412 and reduce the overall size of the base portion 410 .

As shown in FIGS. 1-5 , the first housing base 310 is disposed on the first screen support plate 210 , and the first screen support plate 210 is rotatably matched with the first housing base 310 . The second housing base 320 is arranged on the second screen support plate 220, and the second screen support plate 220 is rotationally matched with the second housing base 320. When the above folding mechanism is applied to an electronic device, both the first screen support plate 210 and the second screen support plate 220 can provide support for the first display module 610 . In order to prevent the existence of the first housing base 310 and the second housing base 320 from affecting the supported effect of the first display module 610, the first housing base 310 is arranged on the first screen support plate 210 away from the first display module. On one side of the group 610 , correspondingly, the second housing seat 320 is disposed on the side of the second screen support plate 220 away from the first display module 610 . Optionally, between the first housing base 310 and the first screen support plate 210, and between the second housing base 320 and the second screen support plate 220, a rotational fit relationship can be formed through rotating structural members such as shaft holes. In addition, the maximum relative rotation angle between the first screen support plate 210 and the first housing base 310 can be equal to the maximum relative rotation angle between the second screen support plate 220 and the second housing base 320, so that the entire The symmetry of the folding mechanism is better, and the overall performance of the folding mechanism is improved.

Optionally, the third screen support plate 230 is rotatably mounted on the first screen support plate 210, so that when the first screen support plate 210 rotates with the first housing seat 310, the third screen support plate 230 can be driven to rotate together Correspondingly, the fourth screen support plate 240 is rotatably installed on the second screen support plate 220 to ensure that the second screen support plate 220 can also drive the fourth screen support plate 240 to rotate during the rotation process with the second housing seat 320 . Specifically, the shapes of the third screen support plate 230 and the fourth screen support plate 240 can be determined according to actual needs. For example, both of them can be long plate-shaped structural members. With the aid of the shaft hole matching structure, the third screen support plate can be 230 is rotatably installed on the first screen support plate 210 , and the fourth screen support plate 240 can be rotatably installed on the second screen support plate 220 correspondingly. Of course, both the third screen support plate 230 and the fourth screen support plate 240 can have structures of other shapes, and any of the above-mentioned corresponding two can also form a rotational cooperation relationship through other rotating parts. Considering the brevity of the text, here are both No longer list them one by one.

The folding mechanism has an unfolded state and a folded state, and by making the first housing seat 310 and the second housing seat 320 move relative to each other based on the base 410, the entire folding mechanism can be switched between the folded state and the unfolded state. Moreover, in the state switching process of the folding mechanism, the first screen support plate 210 and the second screen support plate 220 will not only move relative to the base 410, but also, as shown in FIGS. 9 and 10 , the first screen support plate 210 There will also be relative movement between the second screen support plate 220 and the second housing base 320 and the first housing seat 310 .

Wherein, the first screen support board 210 and the second screen support board 220 both have the first side 203 and the second side arranged opposite to each other, and the first screen support board 210 and the second screen support board 220 have opposite sides. The first surface 201 and the second surface 202 are arranged, the first surface 201 of the first screen support plate 210 and the second screen support plate 220 is set away from the base 410, that is, the first screen support plate 210 and the second screen support plate 220 are all arranged on the same side of the base 410, each first surface 201 is used as a screen support surface to support the first display module 610, etc., the first screen support plate 210 and the second screen support plate 220, and the first surface The second surface 202 disposed opposite to the base 410 is disposed towards the base 410 . Correspondingly, the third screen support plate 230 and the fourth screen support plate 240 are also provided with a first surface 201 and a second surface 202 correspondingly,

9 and 10, in the unfolded state, the respective first sides 203 of the first screen support plate 210 and the second screen support plate 220 are located between the respective second sides, the first screen support plate 210, The second screen support plate 220 , the third screen support plate 230 and the fourth screen support plate 240 are respectively arranged flush with the first surface 201 of the base 410 . And, in the unfolded state, the third screen support plate 230 and the fourth screen support plate 240 are located between the first screen support plate 210 and the second screen support plate 220, specifically, the third screen support plate 230 and the fourth screen support plate 240 Four screen support plates 240 can be integrated between the second side of the first screen support plate 210 and the second screen support plate 220, or the third screen support plate 230 and the fourth screen support plate 240 can be positioned at the first screen support plate Partial structures of the plate 210 and corresponding partial structures on the second screen support plate 220 .

As shown in Figure 10, in the folded state, the distance between the respective first sides 203 of the first screen support plate 210 and the second screen support plate 220 is greater than that of the first screen support plate 210 and the second screen support plate 220 The spacing between the respective second sides.

In detail, in the unfolded state, the first screen support plate 210, the second screen support plate 220, the third screen support plate 230 and the fourth screen support plate 240 are arranged flush, so that all four can be the first screen support plate. The display module 610 and the like provide support to ensure that the first display module 610 can stably maintain a flattened state. 9 and 10, in the process of switching the folding mechanism from the unfolded state to the folded state, the relative rotation angle of the first screen support plate 210 and the second screen support plate 220 is greater than 180°, ensuring that in the folded state, the first The distance between the respective first sides 203 of the screen support board 210 and the second screen support board 220 is greater than the distance between the respective second sides.

In addition, as mentioned above, the folding mechanism can be applied in the bracket structure. When the bracket structure is folded to the folded state with the folding mechanism, as shown in FIG. The respective screen supporting surfaces of the casing 110 and the second casing 120 are arranged in parallel to ensure that the two parts of the first display module 610 supported by the first casing 110 and the second casing 120 can also be parallel to each other. In the process of assembling the first screen support plate 210 and the first housing seat 310, the rotating connection structure between the first screen support plate 210 and the first housing seat 310 (as the rotating assembly mentioned below) can be made It is arranged at the position where the first screen support plate 210 is close to its first side 203, so that when the first screen support plate 210 and the first housing seat 310 rotate relative to each other, the first screen support plate 210 can basically The second side is an axis, which prevents the second side of the first screen support plate 210 from rotating in a direction close to the first housing seat 310 while the first side 203 of the first screen support plate 210 is rotating. The case of turning away from the direction of the first housing base 310 ensures that the first screen support plate 210 can always provide a better supporting effect for the first display module 610 and other components. Correspondingly, in the process of assembling the second screen support plate 220 and the second housing seat 320 , reference can also be made to the above-mentioned embodiments.

Based on the foregoing, as shown in FIG. 10 , the distance between the respective second sides of the first screen support plate 210 and the second screen support plate 220 is equal to or substantially equal to the first support structure in the folded state. The spacing between the respective screen supporting surfaces of the first housing 110 and the second housing 120 . Therefore, it can also be considered that in the folded state, the distance between the respective first sides 203 of the first screen support plate 210 and the second screen support plate 220 is greater than that between the first housing 110 and the second housing 120 Pitch.

More specifically, according to parameters such as the width of the first screen support plate 210 and the second screen support plate 220, the respective first screen support plate 210 and the second screen support plate 220 in the folding mechanism in the folded state can be determined. As for the specific value of the distance between the sides 203 , the aforementioned width is a direction perpendicular to the rotation axis of the second rotating portion 302 , more specifically, it may be the direction B in FIG. 9 .

It should be noted that, in order to ensure that the relative rotation angle between the first screen support plate 210 and the second screen support plate 220 can exceed 180°, it is necessary to ensure that the first screen support plate 210 can move relative to the first housing seat 310, and It is necessary to ensure that the second screen support plate 220 can move relative to the second housing seat 320 . More specifically, in order to achieve the aforementioned purpose, parameters such as specific structures and/or installation positions of components such as the base 410 , the first housing base 310 , and the second housing base 320 may be restricted.

Taking the first screen support plate 210 as an example, in the unfolded state, as shown in FIG. 9 and in conjunction with FIG. 10 , it is necessary to ensure that the rotational connection position of the first screen support plate 210 and the first housing base 310 reaches the first screen support position. The part between the first sides 203 of the plate 210 is spaced apart from the first housing base 310 , the base 410 , and the first housing 110 , so that the first screen support plate 210 approaches the first housing base 310 Turning in the same direction provides avoidance space. Similarly, in the process of designing and arranging components such as the second housing seat 320 corresponding to the second screen support plate 220, the base 410 and the second housing 120, it is also the same.

In the design process of the folding mechanism, in order to minimize the thickness of the entire folding structure, thereby reducing the overall thickness of the electronic device, the distance between the first screen support plate 210 and the base 410 in the unfolded state can be appropriately reduced , in this case, since the third screen support plate 230 and the fourth screen support plate 240 are arranged between the first screen support plate 210 and the second screen support plate 220, so that in the direction B in FIG. The base 410 has a preset distance between the center of the direction B in FIG. The first screen support plate 210 and the base 410 are prevented from interfering with each other.

As mentioned above, when the first screen support plate 210 and the second screen support plate 220 rotate from the unfolded state to the folded state, the third screen support plate 230 and the fourth screen support plate 240 can correspond turn together. Furthermore, in the aforementioned rotation process, as shown in FIG. 10 , by enabling the third screen support plate 230 to rotate relative to the first screen support plate 210, even if the third screen support plate 230 is interfered by components such as the base 410, it will not It will hinder the rotation process of the first screen support plate 210 relative to the base 410, ensuring that the first screen support plate 210 can be rotated to a preset position. Correspondingly, the fourth screen support plate 240 can also be designed correspondingly with reference to the third screen support plate 230 .

The embodiment of the present application provides a folding mechanism, which includes a first screen support plate 210, a second screen support plate 220, a third screen support plate 230, a fourth screen support plate 240, a first housing base 310, a second shell Body base 320 and base 410, the first screen support plate 210 is rotatably connected with the first housing base 310, the second screen support plate 220 is rotatably connected with the second housing base 320, the third screen support plate 230 is supported with the first screen The plate 210 is rotatably connected, and the fourth screen support plate 240 is rotatably connected with the second screen support plate 220 . Both the first housing base 310 and the second housing base 320 are rotatably connected to the base 410, the first screen support plate 210 and the second screen support plate 220 can not only be opposite to the first housing base 310 and the second housing base 320 By turning, the first screen support plate 210 can also rotate relative to the first housing base 310 , and the second screen support plate 220 can rotate relative to the second housing base 320 , so that the folding mechanism can switch between the folded state and the unfolded state.

In the unfolded state, the respective first sides 203 of the first screen support plate 210 and the second screen support plate 220 are located between the respective second sides, and the third screen support plate 230 and the fourth screen support plate 240 All are located between the first screen support plate 210 and the second screen support plate 220, the first screen support plate 210, the second screen support plate 220, the third screen support plate 230 and the fourth screen support plate 240 are away from the base 410 respectively The first surface 201 is arranged flush, so as to provide reliable support for the first display module 610 of the electronic device, etc., to ensure that the first display module 610 can be in a flattened state, and to provide users with a larger display area.

In the folded state, the distance between the respective first sides 203 of the first screen support plate 210 and the second screen support plate 220 is greater than the distance between the respective second sides, so that the first screen support plate 210 and the second screen support plate 220 form a flaring structure, and the flaring of the aforementioned flaring structure faces the base 410. During the process of being folded with the folding mechanism, the middle part of the first display module 610 is accommodated in the second Where the first screen support plate 210 and the second screen support plate 220 form a flaring structure, the folding degree of the middle part of the first display module 610 can be relatively small, so as to prevent the first display module 610, etc. Creases are formed on the display to increase the lifespan of the display. Moreover, during the use of the electronic device using the above folding mechanism, the overall size of the electronic device in the folded state is relatively small, and the degree of portability is relatively high, which is convenient for users to carry.

In addition, by setting the third screen support plate 230 and the fourth screen support plate 240, the space between the first screen support plate 210 and the third screen support plate 230 and between the second screen support plate 220 and the fourth screen support plate 240 , and the gaps between the third screen support plate 230 and the fourth screen support plate 240 are relatively smaller, and can reduce the folding mechanism in the unfolded state to a certain extent, the first screen support plate 210 and the second screen support plate 210 The distance between the screen support plate 220 and the base 410 reduces the thickness of the folding mechanism, thereby reducing the thickness of the electronic device using the folding mechanism. At the same time, the base 410 and the first display module 610 of the electronic device can be separated by means of the third screen support plate 230 and the fourth screen support plate 240, thereby preventing the first display module 610 from being damaged and improving the performance of the first display module. service life.

Optionally, as shown in FIG. 1 and FIG. 3 , the folding mechanism provided in the embodiment of the present application may further include a first connecting shaft 751, a second connecting shaft 752, a first synchronous swing arm 741 and a second synchronous swing arm 742, The first synchronous swing arm 741 cooperates with the first connecting shaft 751 in the upper limit of the rotation direction of the second rotating part 302 , and the second synchronous swing arm 742 cooperates with the second connecting shaft 752 in the upper limit of the rotating direction of the second rotating part 302 . Specifically, both the first connecting shaft 751 and the second connecting shaft 752 can be rotatably connected to the base 410, the first synchronous swing arm 741 can be sleeved on the first connecting shaft 751, and the second synchronous swing arm 742 can be sleeved On the second connecting shaft 752 , the above two groups of components can be correspondingly formed with an interference fit relationship. In another embodiment of the present application, the first synchronous swing arm 741 and the first connecting shaft 751 can be keyed to form a limit fit relationship, and correspondingly, the second synchronous swing arm 742 can be connected to the first connecting shaft 751. The two connecting shafts 752 form a limited fit relationship through a keyed connection, which can further improve the stability of the aforementioned limited fit relationship.

At the same time, the first synchronous swing arm 741 cooperates with the first housing base 310, the second synchronous swing arm 742 cooperates with the second housing base 320, and the first synchronous swing arm 741 and the second synchronous swing arm 742 are synchronized through gears. Mechanism connection, the first housing base 310 and the second housing base 320 rotate synchronously through a gear synchronization mechanism. In the case of adopting the above-mentioned technical solution, it can be ensured that the first screen support plate 210 and the second screen support plate 220 have the ability to rotate synchronously, so that no matter which of the aforementioned two is driven, it can be synchronized through gears. The mechanism drives the other to rotate relative to the base 410, ensuring that the rotation angles of the first screen support plate 210 and the second screen support plate 220 relative to the base 410 are always the same, thereby improving the overall performance of the entire folding mechanism.

Specifically, the matching relationship between the first synchronous swing arm 741 and the first housing seat 310 can be determined according to actual parameters such as the first connecting shaft 751 and the direction of the rotational axis of the second rotating portion 302 . For example, in the case where the axis of the first connecting shaft 751 coincides with the axis of rotation of the first rotating portion 412 , the first synchronous swing arm 741 and the first housing seat 310 can be relatively fixed. In another embodiment of the present application, the rotational axis of the first connecting shaft 751 and the rotational axis of the second rotating part 302 may not coincide. In this case, it is necessary to make the first synchronous swing arm 741 and The first housing seats 310 can move relative to each other.

Specifically, a slide slot can be provided on one of the first synchronous swing arm 741 and the first housing seat 310, and a slide bar can be provided on the other, and the slide bar cooperates with the slide slot, so that even the first connecting shaft 751 The rotation axis of the second rotation part 302 does not coincide with the rotation axis of the second rotation part 302, and it can also ensure that the first housing base 310 can drive the first synchronous swing arm 741 to rotate relative to the base part 410. Furthermore, under the action of the gear synchronization mechanism, the second synchronous swing arm 742 can be rotated correspondingly, and the second housing seat 320 is driven to rotate relative to the base 410, so that the first screen support plate 210 and the second screen support plate 220 can rotate synchronously. the goal of.

Optionally, the gear synchronization mechanism includes a first meshing tooth 781 arranged on the first connecting shaft 751, a second meshing tooth 782 arranged on the second connecting shaft 752, a first gear 791 and a second gear 792, the first The meshing teeth 781 mesh with the first gear 791 , the first gear 791 mesh with the second gear 792 , and the second gear 792 mesh with the second meshing teeth 782 . When the above technical solution is adopted, relatively few components can be used to make the first housing base 310 and the second housing base 320 rotate synchronously.

Specifically, the first connecting shaft 751 and the first meshing teeth 781 can form a gear shaft, and correspondingly, the second connecting shaft 752 and the second meshing teeth 782 can also form a gear shaft, and because the first housing seat 310 and the second The rotation angles of the housing bases 320 relative to the base 410 are generally not greater than 180°, therefore, the first meshing teeth 781 can be made to cover a quarter turn to half a turn on the first connecting shaft 751, and correspondingly, the second meshing teeth 781 can be made to cover the first connecting shaft 751. The two meshing teeth 782 cover a quarter turn to a half turn of the second connecting shaft 752 , which can basically ensure that the first meshing teeth 781 and the second meshing teeth 782 can provide reliable synchronization, and can reduce production costs.

Further, the folding mechanism may also include a first cam sleeve 731, a second cam sleeve 732 and an elastic member 720, the first connecting shaft 751 is sleeved with the first cam sleeve 731 and the second cam sleeve 732, and the first synchronous swing arm 741 is fixed with a first cam sleeve 731, and the second cam sleeve 732 and the first connecting shaft 751 are rotated in cooperation with the rotation direction of the second rotating part 302. When the first cam sleeve 731 and the second cam sleeve 732 rotate relatively Next, the elastic member 720 is in a stretched state or a contracted state.

Specifically, the specific structures of the first cam sleeve 731 and the second cam sleeve 732 may be the same, and the two are snapped together, and during the relative rotation of the first cam sleeve 731 and the second cam sleeve 732, the first cam sleeve 731 The maximum distance between the second cam sleeve 732 will be greater than the initial distance between the two (ie the minimum distance). The cam sleeve 731 and/or the second cam sleeve 732 apply an elastic reset force to promote the recovery of the first cam sleeve 731 and the second cam sleeve 732 to the buckled state, that is, the state with the smallest distance between the two.

By adopting the above-mentioned technical solution, the relative position between the first cam sleeve 731 and the second cam sleeve 732 in the buckled state can be designed, so that when the folding mechanism is in the folded state and the unfolded state, the first cam sleeve 731 and the second cam sleeve 731 The two cam sleeves 732 are both in the buckled state, so as long as the folding mechanism is no longer in the folded state or unfolded state, the distance between the first cam sleeve 731 and the second cam sleeve 732 will increase due to relative rotation. , so that the elastic member 720 is stretched or compressed. Therefore, in the case of adopting the above technical solution, the folding mechanism can be easily maintained in the unfolded state and the folded state by means of the elastic member 720, and can prevent the unfolded state or the folded state of the folding mechanism from being destroyed by a relatively small external force, which is beneficial to the user. inconvenient to use.

Optionally, the folding mechanism further includes a mounting part 714, and the mounting part 714 is fixed on the base part 410. Specifically, the mounting part 714 may be fixed on the base part 410 by means of welding or connecting parts. The mounting part 714 is provided with a first limiter 711 and a second limiter 712 that are opposite and fixed along the rotational axis of the second rotating part 302, and the first cam sleeve 731, the second cam sleeve 732 and the elastic member 720 are all provided. Between the first limiting member 711 and the second limiting member 712 , the elastic member 720 is disposed on a side of the second cam sleeve 732 away from the first cam sleeve 731 . In the case of adopting the above technical solution, the first limiting member 711 and the second limiting member 712 can provide the positioning basis, on the one hand, the reliability of the elastic member 720 can be improved, and on the other hand, the elastic member 720 can also be reduced. Difficulty of installation.

In the case of adopting the above technical solution, relative rotation occurs between the first cam sleeve 731 and the second cam sleeve 732, that is, the elastic member 720 is compressed, so that the elastic member 720 moves toward the first cam sleeve 731 and the second cam sleeve 732. Apply an elastic force to promote the reset of the two. In order to further prevent the difficulty of keeping the folded state and the unfolded state of the folding mechanism, the elastic member 720 can have a pre-tightening force, that is, in the state where the first cam sleeve 731 and the second cam sleeve 732 are engaged with each other, It is also possible to make the elastic member 720 in a compressed state.

Specifically, the first cam sleeve 731 and the first synchronous swing arm 741 can be formed by welding or integral molding, and the first synchronous swing arm 741 can be connected to the first connecting shaft 751 through the first cam sleeve 731 on the second The rotation direction of the two rotating parts 302 forms a limiting fit relationship. More specifically, the first cam sleeve 731 and the first connecting shaft 751 can be connected to each other by a key connection, and the inner peripheral surface of the second cam sleeve 732 can be a circular structural member to ensure that the second cam sleeve 732 can Normally rotate relative to the first connecting shaft 751, of course, in order to prevent the first connecting shaft 751 from rotating with the first synchronous swing arm 741, the second cam sleeve 732 will follow the first connecting shaft 751 together with the first cam sleeve 731 Rotation, optionally, the second cam sleeve 732 is limitedly matched with the base part 410 in the rotation direction of the second rotating part 302 .

In addition, the first limiting member 711 , the second limiting member 712 and the mounting member 714 can be integrally formed to improve the stability of the connection relationship among the three. Matching holes can be set on the first limiting member 711 and the second limiting member 712, and the opposite ends of the first connecting shaft 751 and the second connecting shaft 752 are installed on the first limiting member 711 and the second limiting member respectively. bit piece 712 on. More specifically, the matching holes can all be through holes, and the first connecting shaft 751 and the second connecting shaft 752 can pass through the first limiting member 711 and the second limiting member 712. 770 and other structures, so that both the first connecting shaft 751 and the second connecting shaft 752 can form a stable rotational cooperation relationship with the mounting part 714 . Moreover, the first gear 791 and the second gear 792 can also be mounted on the first stopper 711 or the second stopper 712 by rotating parts such as a shaft, so that the first gear 791 and the second gear 792 can be connected with the first stopper 791. The first meshing tooth 781 and the second meshing tooth 782 are in stable transmission cooperation.

Optionally, a third limiting member 713 is also provided on the mounting member 714, and the third limiting member 713 is located between the first limiting member 711 and the second limiting member 712, specifically, the third limiting member 713 The mounting part 714 may also be integrally formed, and the third limiting part 713 may also be provided with a through hole for the first connecting shaft 751 and the second connecting shaft 752 to pass through. Between the first limiting member 711 and the third limiting member 713, and between the second limiting member 712 and the third limiting member 713, a first cam sleeve 731, a second cam sleeve 732 and an elastic member 720 are arranged. . In the case of adopting the foregoing solution, the stability of the folding mechanism in the folded state and the unfolded state can be further improved. Specifically, the spacing between the first limiting member 711 and the third limiting member 713, and the spacing between the second limiting member 712 and the third limiting member 713 can be the same. Parameters such as the structure of a cam sleeve 731 also can be identical, the parameters such as the structure of each second cam sleeve 732 also can be identical, the parameters such as the structure of each elastic member 720 also can be identical, thereby reduce spare parts and assemble difficulty.

Optionally, both the first synchronous swing arm 741 and the second synchronous swing arm 742 are fixed with a first cam sleeve 731 , and each first cam sleeve 731 is equipped with a second cam sleeve 732 and an elastic member 720 . That is to say, when the folding mechanism is in the unfolded and folded state, both the side where the first synchronous swing arm 741 is located and the side where the second synchronous swing arm 742 is located can be elastically acted by the elastic member 720, and the elastic force can The folding mechanism is prevented from being separated from the unfolded state and the folded state, thereby improving the ability of the folding mechanism to stably maintain the unfolded state and the folded state. Of course, both the first synchronous swing arm 741 and the second synchronous swing arm 742 can be provided with multiple sets of first cam sleeves 731, second cam sleeves 732 and elastic members 720 that cooperate with each other to further enhance the folding mechanism to keep the folding state and the ability to expand the state.

As mentioned above, it is possible to prevent the second cam sleeve 732 from rotating with the first cam sleeve 731 and unable to Make the first cam sleeve 731 and the second cam sleeve 732 move axially. Based on the above embodiment, when the first synchronous swing arm 741 and the second synchronous swing arm 742 are equipped with the first cam sleeves 731, the second cam sleeves that cooperate with the aforementioned two first cam sleeves 731 respectively can Connecting rod 733 is arranged between 732, and in this case, on the one hand, second cam bushing 732 can be installed on the first connecting shaft 751 and the second connecting shaft 752 respectively, which reduces the difficulty of assembly; on the other hand, it can also Make the two second cam sleeves 732 capable of synchronous action, further improve the ability of the folding mechanism to maintain the folded state and unfolded state, in addition, connect the two second cam sleeves 732 through the connecting rod 733, so that the design and assembly of the second In the process of the cam sleeve 732, there is no need to separately configure the limit structure for the second cam sleeve 732. Under the joint action of the connecting rod 733 and the two second cam sleeves 732, the second cam sleeve 732 can be respectively opposite to each other. The rotation of the first connecting shaft 751 and the second connecting shaft 752 can basically ensure that the second cam sleeve 732 will not rotate with the rotation of the first cam sleeve 731 .

As mentioned above, both the third screen support plate 230 and the fourth screen support plate 240 can be strip-shaped structural members, and the first screen support plate 210, the second screen support plate 220, and the third screen support plate 230 can be The dimensions of the fourth screen support plate 240 in the direction A in FIG. 1 are equal, that is, the aforementioned four are arranged side by side. Optionally, in the case where the folding mechanism includes the first synchronous swing arm 741 and the second synchronous swing arm 742 and other components, in another embodiment of the present application, as shown in FIG. 5 , the first screen support plate 210 and the second screen support plate 220 are provided with a first avoidance gap, the third screen support plate 230 is rotatably installed to the first avoidance gap of the first screen support plate 210, and the fourth screen support plate is rotatably installed to the second screen support plate The second avoidance gap, the side of the third screen support plate 230 is flush with the first side 203 of the first screen support plate 210, and the side of the fourth screen support plate 240 is aligned with the first side of the second screen support plate 220. One side 203 is arranged flush, so that the first screen support plate 210 and the third screen support plate 230, as well as the second screen support plate 220 and the fourth screen support plate 240 can be correspondingly formed with a rectangular or approximately rectangular outer contour. The structure provides reliable support for the first display module 610 in the electronic device.

Moreover, the third screen support plate 230 can be arranged opposite to the first synchronous swing arm 741, and the fourth screen support plate 240 can be arranged opposite to the second synchronous swing arm 742, so that even if the first synchronous swing arm 741 and the second synchronous swing arm 742 is relatively small in the thickness direction of the base 410 from the first screen support plate 210 and the second screen support plate 220. A screen support plate 210 and a second screen support plate 220 provide an avoidance function to ensure that the first screen support plate 210 and the second screen support plate 220 can rotate to the state shown in FIG. 10 . Of course, in the above-mentioned technical solution, it is also necessary to design the structure that the first housing seat 310 and the second housing seat 320 cooperate with the base 410 to ensure that the first housing seat 310, the second housing seat 320 and the base 410 The relative rotation between the first screen support plate 210 and the second screen support plate 220 will not be hindered at positions corresponding to the above two positions.

In addition, in the case where the number of the first synchronous swing arm 741 and the second synchronous swing arm 742 are multiple, the respective first avoidance gaps of the first screen support plate 210 and the second screen support plate 220 can also be set as many times as possible. Correspondingly, the number of the third screen support plate 230 and the fourth screen support plate 240 can also be set to be multiple.

As mentioned above, the first screen support plate 210 and the third screen support plate 230 can form a rotational fit relationship through a shaft hole structure. Optionally, the opposite sides of the first avoidance gap of the first screen support plate 210 Both ends of the third screen support plate 230 can be provided with a fifth rotating part 530, and the opposite ends of the third screen support plate 230 are provided with a sixth rotating part 540, and one of the fifth rotating part 530 and the sixth rotating part 540 is provided with an arc The slot, the other includes an arc-shaped plug, and the arc-shaped slot and the arc-shaped plug are rotatably connected, and the first screen support plate 210 and the third screen are realized by matching the larger-area arc-shaped plug and the arc-shaped slot. The purpose of the rotational connection between the support plates 230 is to ensure that the rotational connection relationship between the two is relatively reliable. Correspondingly, the rotational connection relationship between the second screen support plate 220 and the fourth screen support plate 240 can also be formed by the fifth rotating portion 530 and the sixth rotating portion 540 .

Further, as shown in FIGS. 1-6 , the folding mechanism may also include a fifth screen support plate 250, which is installed on the base 410. Optionally, the fifth screen support plate 250 may be bonded or a connecting piece connection, etc. to be fixed on the base 410 . Both the third screen support plate 230 and the fourth screen support plate 240 are provided with a second avoidance gap. In the unfolded state, the fifth screen support plate 250 is embedded in the second avoidance gap and the fourth screen support plate 230 of the third screen support plate The screen support plate 240 is within the second avoidance gap. Under the situation of adopting above-mentioned technical scheme, can further reduce the gap size between the 3rd screen support plate 230 and the 4th screen support plate 240, by the second screen support plate 230 of the 3rd screen support plate and the 4th screen support plate 240 respectively second Avoid the gap, in the process of the third screen support plate 230 and the fourth screen support plate 240 rotating relative to the base 410, the third screen support plate 230 and the fourth screen support plate 240 can be better avoided the base 410, the first synchronization Structures such as the swing arm 741 and the second synchronous swing arm 742 expand the maximum angle at which the third screen support plate 230 and the fourth screen support plate 240 can rotate relative to the base 410, thereby enabling the third screen support plate 230 and the fourth screen support plate The gap between the supporting plates 240 can be designed to be smaller, so as to improve the supporting effect of the first display module 610 and other components.

As mentioned above, the fifth screen support plate 250 can be fixed on the base 410. In another embodiment of the present application, the fifth screen support plate 250 can be movably connected to the base 410 along its own thickness direction. The screen support plate 250 can be movably installed on the base 410 through pins, so that the fifth screen support plate 250 can move relative to the base 410 during the working process of the folding mechanism.

Based on the above, in the unfolded state, the distance between the fifth screen support plate 250 and the base 410 along its thickness direction is the first distance; in the folded state, the distance between the fifth screen support plate 250 and the base 410 along its thickness The distance between them is the second distance, and the second distance is smaller than the first distance. Generally speaking, when the folding mechanism switches from the unfolded state to the folded state, the fifth screen support plate 250 moves toward the direction close to the base 410; The plate 250 moves away from the base 410 . By adopting the above technical solution, the accommodating space of the folding mechanism in the folded state can be further enlarged, thereby further preventing the problem of creases caused by the first display module being folded.

In addition, an elastic member or the like can be provided between the fifth screen support plate 250 and the base 410, so that the first display module can press the fifth screen support plate 250 to move closer when the first display module is folded. The direction of the base 410 moves, and in the process of gradually flattening the first display module, the elastic member can drive the fifth screen support plate 250 to reset by its own elastic force. Alternatively, a power driver can also be provided between the fifth screen support plate 250 and the base 410 , and the power driver can drive the fifth screen support plate 250 and the base 410 to move toward or away from each other.

In addition, as mentioned above, when the first screen support plate 210 rotates with the first housing seat 310 relative to the base 410, relative rotation can also occur between the first screen support plate 210 and the first housing seat 310. More specifically, in the process of the first screen support plate 210 turning close to the first housing seat 310, the driving force can be increased by the flexible display screen in the electronic device; During the rotation process of the body seat 310, the first screen support plate 210 can be driven by means of an elastic restoring force by means of a structure such as an elastic member provided in the folding mechanism, so that the first screen support plate 210 can be rotated between the first housing seat 310 and the second housing seat 310. When the seat 320 is rotated to the unfolded state, the first screen support plate 210 can be flush with the screen support surface of the first housing 110 to jointly provide support for the flexible display screen. In another embodiment of the present application, a power drive device, such as a motor, can also be arranged between the first screen support plate 210 and the first housing 110, and the first screen support plate 210 and the first screen support plate 210 can also be driven by the power drive device. The first housing seat 310 rotates towards or away from each other. Of course, the space between the second housing base 320 and the second screen support plate 220 can also be designed and produced with reference to any of the above technical solutions.

Based on the above embodiment, optionally, as shown in FIG. 5 and FIG. 10 , the sides of the third screen support plate 230 and the fourth screen support plate 240 close to the fifth screen support plate 250 are provided with first overlapping edges, Both opposite sides of the fifth screen support plate 250 are provided with second overlapping edges. In the unfolded state, each second overlapping edge is overlapped with the corresponding first overlapping edge. Specifically, the shape and size of the first overlapping edge and the second overlapping edge can be adapted to each other, specifically, both the first overlapping edge and the second overlapping edge can be stepped structural members to enhance the fifth screen The support plate 250 overlaps the third screen support plate 230 and the fourth screen support plate 240 for stability.

In the case of adopting the above technical solution, the fifth screen support plate 250 may overlap the third screen support plate 230 and the fourth screen support plate 240 in the unfolded state. In this case, the third screen support plate 230 and the fourth screen support plate 240 can also provide driving force for the movement of the fifth screen support plate 250 relative to the base 410, and then, with the movement of the folding mechanism, the first screen support plate When the plate 210 and the second screen support plate 220 can rotate automatically, there is no need to configure the fifth screen support plate 250 with driving parts, etc., on the one hand, the number of parts in the folding mechanism can be reduced, and on the other hand, the folding mechanism can be improved. High assembly efficiency and low production cost.

Optionally, as shown in FIGS. 1 and 10, the folding mechanism further includes a cover 420, which is fixedly connected to the side of the base 410 away from the first screen support plate 210, and the cover 420 can provide protection for the base 410. function, and the folding mechanism can be covered by the cover 420, so that when the folding mechanism is applied to electronic equipment, the number of exposed parts of the electronic equipment can be reduced as much as possible, on the one hand, the appearance and performance of the electronic equipment can be improved, and on the other hand, the Excellent dustproof and waterproof performance, improve the reliability of electronic equipment. The cover 420 can be fixed on the base 410 by bonding or other methods. In another embodiment of the present application, the base 410 and the cover 420 can be detachably fixedly connected together by threaded connectors such as screws. connection reliability between them.

At the same time, in the folded state, the projection of the cover body 420 in the plane where the distribution direction of the first screen support plate 210 and the second screen support plate 220 and the rotation axis of the second rotating part 302 is located covers the third screen. The support plate 230, the fourth screen support plate 240, the first housing base 310, the second housing base 320 and the base 410 ensure that the cover 420 has a better shielding effect. It should be noted that the distribution direction of the first screen support plate 210 and the second screen support plate 220 may be the direction B in FIG. 9 .

Specifically, according to the specific structure and size parameters of other components in the folding mechanism, the structure, size and installation position of the cover body 420 can be designed so that when the folding mechanism is in the folded state, the self-cover body 420 will When one side of the folding mechanism is viewed frontally, the third screen support plate 230, the fourth screen support plate 240, the first housing seat 310, the second housing seat 320 and the base 410 in the folding mechanism can all be blocked by the cover body 420 . More specifically, in order to improve the shielding effect of the cover body 420 on other components, as shown in Figure 7, the cover body 420 can be made into an arc-shaped structural member as a whole, which can also improve the cover body 420 and the first housing in the bracket structure. The connection tightness between the 110 and the second housing 120 further improves the sealing performance of the bracket structure and the electronic device.

Further, as shown in FIG. 2 and FIG. 3 , the first housing seat 310 and/or the second housing seat 320 include an avoidance structure, and the avoidance structure is provided with an avoidance groove 303 , in the unfolded state, the side of the cover 420 The edge is accommodated in the escape groove 303 . Specifically, parameters such as the location and size of the avoidance groove 303 can be flexibly determined according to parameters such as the extension position and thickness of the cover body 420 , which are not limited here.

More specifically, both the first housing base 310 and the second housing base 320 are provided with avoidance grooves 303 , in this case, the avoidance grooves 303 can provide an escape space for the sides of the cover 420 , Therefore, the two sides of the cover body 420 that are arranged opposite to each other along the direction B in FIG. The degree of bending, so that when the folding mechanism is in the folded state, the gap between the cover body 420 and the first shell 110 and the second shell 120 can be made smaller, thereby making the cooperation between the three more reliable .

Taking the first housing base 310 as an example, in the case that the first housing base 310 is provided with an avoidance structure, in order to ensure that the structural strength of the first housing base 310 can still meet the use requirements, as shown in FIG. 3 , the The position where the avoidance structure is located protrudes to the side away from the avoidance groove 303 . Based on the above situation, further, the first screen support plate 210 can be provided with an accommodation sinking groove, and in the folded state, at least a part of the avoidance structure is accommodated in the accommodation sinking groove, so as to prevent the first screen support plate 210 from setting the aforementioned avoidance structure on the first housing base 310 The structure will adversely affect the maximum relative rotation angle between the first screen support plate 210 and the first housing base 310 .

Specifically, parameters such as the position, width and depth of the sinking tank can also be flexibly determined according to the actual parameters of the avoidance structure, which is not limited here. More specifically, the second housing base 320 can also be provided with a corresponding avoidance structure, and the second screen support plate 220 is also provided with a corresponding sinking groove, thereby improving the symmetry of the folding mechanism and further improving the overall performance of the folding mechanism. .

In order to improve the structural compactness of the entire folding mechanism, as shown in FIG. At least a part of the rotating part 302, and at least a part of the second rotating part 302 of the second housing base 320 are accommodated in the receiving groove 411, which can reduce the space occupied by the folding mechanism in the thickness direction of the base part 410, thereby reducing the overall electronic The thickness of the equipment improves the overall performance of the product. It should be noted that, the thickness direction of the base portion 410 may specifically be a direction perpendicular to direction A in FIG. 1 and direction B in FIG. 9 .

Specifically, by enlarging the size of the receiving groove 411, a plurality of first rotating parts 412 can be arranged in one receiving groove 411. In another embodiment of the present application, in order to lift the first housing base 310 and the second The stability of the cooperation between the housing base 320 and the base 410 prevents the first housing base 310 and the second housing base 320 from interfering with each other, and a plurality of receiving grooves 411 can be provided corresponding to the number of the first rotating parts 412 . Of course, in order to ensure that at least a part of the second rotating part 302 accommodated in the receiving groove 411 can normally cooperate with the first rotating part 412, in the design and processing process, the first rotating part 412 and the second rotating part 302 can be made The specific structure and parameters such as the structure and size of the receiving groove 411 are adapted to each other.

Further, in order to maximize the reliability of the rotational fit relationship between the first rotating part 412 and the second rotating part 302 located in the receiving groove 411, optionally, as shown in Figures 2 and 3, the first rotating One of the part 412 and the second rotating part 302 includes a slider, and the other is provided with a chute, and the chute and the slider are slidably matched. The matching area between the chute and the slider is relatively large and can be maximized. The space in the receiving groove 411 is effectively utilized. Certainly, both the chute and the slider are arc-shaped, so as to ensure that both the first housing base 310 and the second housing base 320 can form a rotational fit relationship by means of the slidably fitted chute and the slider.

In order to further improve the stability of the rotational fit relationship between the first housing base 310 and the second housing base 320 and the base 410, as shown in FIG. , correspondingly, the second rotating part 302 is provided on the opposite sides of the first housing base 310 and the second housing base 320, taking the first housing base 310 as an example, two When the second rotating part 302 is matched with the two first rotating parts 412 in a receiving groove 411 in a one-to-one manner, it can further prevent the first housing base 310 from rotating relative to the base 410 from its own rotation axis, thereby lifting the first housing The stability of the rotational fit relationship between the body seat 310 and the base 410. Correspondingly, in the case of adopting the above technical solution, the rotational fit relationship between the second housing base 320 and the base 410 is relatively more stable.

In the case that the first rotating part 412 is arranged in the receiving groove 411, in order to ensure that there is a better rotational fit relationship between the first rotating part 412 and the second rotating part 302, the width of the base part 410 should be reduced as much as possible (i.e. The size of the base portion 410 along the direction B in FIG. 9 ), optionally, a plurality of first rotating portions 412 may be arranged at intervals or in dislocation on the rotation axis of the second rotating portion 302 . That is to say, a plurality of first rotating parts 412 can be distributed along the rotating axis of the second rotating part 302 , and any two adjacent first rotating parts 412 have a preset distance between them. Alternatively, in the case where a plurality of first rotating parts 412 are distributed along the rotational axis of the second rotating part 302, the plurality of first rotating parts 412 can be formed into groups of two, and the two first rotating parts in any group 412 are arranged adjacent to each other on the rotation axis of the second rotation part 302, that is, there is no space between the two first rotation parts 412 in the group on the rotation axis of the second rotation part 302. This technical solution On the one hand, the above-mentioned technical purpose can also be achieved. On the other hand, since the positions between the two first rotating parts 412 in the group are relatively close, by making the two first rotating parts 412 in any group respectively and the first The corresponding cooperation between the housing base 310 and the second housing base 320 can also improve the symmetry between the first housing base 310 and the second housing base 320 to a certain extent, thereby improving the overall performance of the folding mechanism.

Optionally, the first screen support plate 210 may be rotatably connected to the first housing 110 in the bracket structure, and as described above, the first housing seat 310 is fixedly connected to the first housing 110. In this case, The first screen support plate 210 can form a rotational fit relationship with the first housing base 310 . For ease of installation, as shown in Figure 3, the folding mechanism may include a rotating assembly, and the first screen support plate 210 may be rotatably connected to the first housing base 310 through a plurality of rotating assemblies. The stability of the rotation fit between the first screen support plate 210 and the first housing base 310 can be improved, and on the other hand, the optional structure of the rotation assembly can be expanded, and the difficulty of design and processing can be reduced.

As shown in Figure 3, the rotating assembly specifically includes a third rotating part 510 and a fourth rotating part 520, one of the third rotating part 510 and the fourth rotating part 520 is connected to the first housing seat 310, and the other Connected to the first screen support board 210. The third rotating part 510 includes an inserting block, the fourth rotating part 520 is provided with a slot, and the inserting block and the slot are provided with an arc-shaped mating surface, and the inserting block and the slot are rotated and matched through the arc-shaped mating surface, which can ensure the third rotation There is a large rotational fit area between the part 510 and the fourth rotating part 520, which improves the reliability of the rotational connection between the two parts. Moreover, in the case of adopting the above technical solution, by making the rotation axes of the third rotating part 510 and the fourth rotating part 520 be located on the first screen support plate 210 or the first screen support plate 210 is away from the position of the first housing base 310 On the one hand, the distance between the first screen support plate 210 and the first housing seat 310 can be relatively smaller while ensuring that the rotating assembly is located on the side of the first screen support plate 210 facing the first housing seat 310 , to further reduce the space occupied by the entire folding mechanism in the thickness direction of the base 410 .

Specifically, by adapting the shape and size of the plug and the slot, it is possible to ensure that a rotational fit relationship can be formed between the two; and, the slot can be of a structure with openings on both sides, so that one side of the slot can The insert block is installed into the slot at the side, and the maximum relative rotation angle between the insert block and the slot can be limited by other structures such as the first housing seat 310 and the first housing 110 . In addition, the first screen support plate 210 and the first housing seat 310 can also be adjusted by disposing detachable limit structures at opposite ends of the first screen support plate 210 along the rotation axis of the second rotating part 302 . The relative positional relationship on the rotation axis of the second rotating part 302 is restricted to prevent relative movement between the two in the aforementioned direction.

In another embodiment of the present application, as shown in FIG. 2 , the fourth rotating part 520 includes a limiting part and a matching part, the limiting part and the matching part enclose a slot, and the fitting part has an arc-shaped matching surface. On the rotation axis of the second rotating part 302, the limiting parts of the two fourth rotating parts 520 in the plurality of fourth rotating parts 520 are arranged oppositely, and at least two third rotating parts 510 are limited and arranged at the aforementioned opposite positions. Set between or outside the two limit pieces. In the structure of the folding mechanism as shown in FIG. In this case, as shown in Figure 3, the two groups of third rotating parts 510 that cooperate with the aforementioned two groups of fourth rotating parts 520 should be arranged on the two groups of fourth rotating parts 520 respectively. outside.

In the case of adopting the above technical solution, at least two third rotating parts 510 can be limited by means of the limiting parts in the two fourth rotating parts 520, thereby ensuring that the third rotating part 510 and the fourth rotating part 520 can A limit fitting relationship is formed on the rotation axis of the second rotating part 302 to ensure a stable matching relationship between the first screen support plate 210 and the first housing seat 310 on the rotation axis of the second rotating part 302 .

In order to improve the operation stability of the folding mechanism, optionally, the number of the first housing seat 310 and/or the second housing seat 320 is multiple, and optionally, the first housing seat 310 and the second housing seat 320 have the same number and are multiple, by making a plurality of first housing seats 310 and a plurality of second housing seats 320 set in groups, the gap between the first housing 110 and the second housing 120 can be further improved. action stability. As mentioned above, the first housing base 310 can be rotatably connected with the first screen support plate 210, and the second housing base 320 can be rotatably connected with the second screen support plate 220. When the number of 320 is multiple, at least one first housing base 310 can be rotatably connected to the first screen support plate 210 , and at least one second housing base 320 can be connected to the second screen support plate 220 . More specifically, as shown in FIG. 2 , the first housing seats 310 located at opposite ends of the base 410 can be rotatably connected to the first screen support plate 210 through the above-mentioned rotating assembly, and the other first housing seats 310 can be It is no longer connected to the first screen support plate 210, so that while ensuring a high rotation fit stability between the first housing seat 310 and the first screen support plate 210, the processing and assembly of the entire folding mechanism can also be reduced difficulty. Correspondingly, the second casing seat 320 can also be the same, considering the brevity of the text, it will not be repeated here.

Further, as mentioned above, the folding mechanism can be applied in the bracket mechanism. Based on this, the embodiment of the present application also provides a bracket structure. The bracket structure includes a first shell 110 and a second shell 120. When assembling the bracket structure, During the process, the first housing base 310 is fixedly connected to the first housing 110 , and the second housing base 320 is fixedly connected to the second housing 120 . In the process of unfolding and folding the support structure, the first housing 110 and the second housing 120 can respectively drive the first housing base 310 and the second housing base 320 to move relative to each other, so that the first housing base 310 and the second housing base 310 can move relative to each other. The housing seat 320 is relatively rotated.

Specifically, the first housing seat 310 and the first housing 110 may be fixed to each other by means of bonding, riveting, clamping or screwing. In order to improve the connection reliability and reduce the difficulty of disassembly and assembly, a through hole or a threaded hole can be formed on the first housing base 310 and the first housing 110, which makes the gap between the first housing base 310 and the first housing 110 The purpose of fixed connection can be realized through threaded connectors. Correspondingly, the second housing base 320 and the second housing 120 may also be fixed to each other through screw connections.

In addition, as mentioned above, the first screen support plate 210 and the first housing seat 310 can rotate relative to each other. The movement creates obstructions. Optionally, the first housing 110 and the first housing seat 310 are provided with an inclined avoidance support surface on the side facing the first screen support plate 210. In this case, on the one hand, it can ensure that the first The screen support plate 210 has the ability to rotate relative to the first housing seat 310 (and the first housing 110). On the other hand, the tilt avoidance support surface can also provide a better support effect for the first screen support surface, thereby ensuring Flexible display screens can be well supported.

Correspondingly, the side of the second housing 120 and the second housing seat 320 facing the second screen support plate 220 can also be provided with an inclined avoidance support surface, so that in the folded state, the first screen support plate 210 and the first screen support plate 210 can be The second screen support plates 220 are respectively supported on the corresponding inclined avoidance support surfaces, so as to improve the operation stability of the folding mechanism.

Based on the support structure provided in the above embodiments, further, the embodiment of the present application further provides an electronic device, the electronic device includes a first display module 610 and the above support structure, wherein the first display module 610 includes a flexible display screen, The first display module 610 is installed on the bracket structure, and the first display module 610 can be supported on the first casing 110, the second casing 120, the first screen support plate 210, the second screen support plate 220, the third On the screen support plate 230 and the fourth screen support plate 240 , ensure that the bracket structure can provide a better supporting effect for the flexible display screen in the first display module 610 . Moreover, the above-mentioned electronic device has a folded state and an unfolded state, and in the folded state, the distance between the first side 203 of the first screen support plate 210 and the second screen support plate 220 is greater than that of the first screen support plate 220. The spacing between the respective second sides of the board 210 and the second screen support board 220 enables the electronic device to provide a larger, flared accommodation space for the middle part of the first display module 610 of itself, which can Try to prevent creases in the middle part of the first display module 610 during being folded, so as to improve its service life.

Optionally, the sides of the first housing 110 and the second housing 120 facing away from the first display module 610 may be provided with a first backplane 130 and a second backplane 140 respectively, so as to be installed on the first housing 110 and the second housing 120. The components within the second housing 120 provide encapsulation and protection. In order to further improve the usability of the electronic device, optionally, a second display module is provided on the side of the first housing 110 away from the first display module 610, and parameters such as the size of the second display module can be determined according to the actual situation. selected. In the case of adopting the above technical solution, display modules are provided on opposite sides of the first casing 110 . By making the electronic device in a folded state, on the one hand, it is convenient for the user to carry, and the user can use the second display module to perform human-computer interaction; and when the user has needs such as browsing videos, the electronic device can be unfolded to use The first display module 610 with a larger display area improves the audio-visual experience. Of course, the above-mentioned scenarios are only for illustration, and the user can also use the first display module 610 and the second display module at the same time if the software and other conditions are met. In other words, during the use of the electronic device, the user can flexibly choose to use the first display module 610 and/or the second display module according to their own needs, which is not limited here.

The electronic device disclosed in the embodiment of the present application may be a smart phone, a tablet computer, an e-book reader or a wearable device. Of course, the electronic device may also be other devices, which is not limited in this embodiment of the present application.

The above-mentioned embodiments of this application focus on the differences between the various embodiments. As long as the different optimization features of the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, here No longer.

The above descriptions are only examples of the present application, and are not intended to limit the present application. For those skilled in the art, various modifications and changes may occur in this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims (23)

1. A folding mechanism, characterized in that it comprises a first screen support plate, a second screen support plate, a third screen support plate, a fourth screen support plate, a first housing base, a second housing base, a base, a first connecting shaft, a second connecting shaft, a first synchronous swing arm and a second synchronous swing arm; The first housing seat is arranged on the first screen support plate, and the first screen support plate is rotatably matched with the first housing seat; The second housing seat is arranged on the second screen support plate, and the second screen support plate is rotatably matched with the second housing seat; The third screen support plate is rotatably mounted on the first screen support plate, and the fourth screen support plate is rotatably mounted on the second screen support plate; The base is provided with a plurality of first rotating parts, and the first housing base and the second housing base are rotationally connected to the plurality of first rotating parts through their respective second rotating parts. ; The first synchronous swing arm cooperates with the first connecting shaft in the upper rotation direction of the second rotating part, and the second synchronizing swing arm and the second connecting shaft are positioned in the upper direction of the second rotating part. Cooperate with the upper limit of the rotation direction; The first synchronous swing arm cooperates with the first housing seat, the second synchronous swing arm cooperates with the second housing seat, and the first synchronous swing arm and the second synchronous swing arm are connected by a gear synchronization mechanism, and the first housing base and the second housing base rotate synchronously through the gear synchronization mechanism; The folding mechanism has an unfolded state and a folded state, and in the unfolded state, respective first sides of the first screen support plate and the second screen support plate are located between respective second sides, Both the third screen support plate and the fourth screen support plate are located between the first screen support plate and the second screen support plate, the first screen support plate, the second screen support plate, the first screen support plate The three-screen support plate and the fourth screen support plate are respectively arranged flush with the first surface of the base; In the folded state, the distance between the respective first sides of the first screen support board and the second screen support board is greater than that of the first screen support board and the second screen support board. The spacing between the respective second sides of the panels. 2. The folding mechanism according to claim 1, wherein the gear synchronization mechanism comprises a first meshing tooth arranged on the first connecting shaft, a second meshing tooth arranged on the second connecting shaft, The first gear meshes with the second gear, the first gear meshes with the first gear, the first gear meshes with the second gear, and the second gear meshes with the second mesh teeth. 3. The folding mechanism according to claim 1, characterized in that, the folding mechanism further comprises a first cam sleeve, a second cam sleeve and an elastic member, and the first connecting shaft is sleeved with the first cam sleeve and the second cam sleeve, the first cam sleeve is fixed on the first synchronous swing arm, the second cam sleeve and the first connecting shaft are in the rotation direction of the second rotating part Rotational fit, when the first cam sleeve and the second cam sleeve rotate relative to each other, the elastic member is in a stretched state or a contracted state. 4. The folding mechanism according to claim 3, characterized in that, the folding mechanism further comprises a mounting part, the mounting part is fixed on the base, and the mounting part is provided with a rotation axis along the second rotating part To the opposite and fixed first limiting member and the second limiting member, the first cam sleeve, the second cam sleeve and the elastic member are all arranged on the first limiting member and the second limiting member. between the limiting parts, and the elastic part is arranged on the side of the second cam sleeve away from the first cam sleeve. 5. The folding mechanism according to claim 4, wherein the mounting part is further provided with a third limiting part located between the first limiting part and the second limiting part, the Between the first limiting member and the third limiting member, and between the second limiting member and the third limiting member, the first cam sleeve and the second cam sleeve are arranged. and the elastic member. 6. The folding mechanism according to claim 3, wherein the first synchronous swing arm and the second synchronous swing arm are fixed with the first cam sleeves, and each of the first cam sleeves corresponds to The second cam sleeve and the elastic member are provided. 7. The folding mechanism according to claim 1, wherein the first screen support plate and the second screen support plate are both provided with a first avoidance gap, and the third screen support plate is rotatably mounted to the The first avoidance gap of the first screen support plate, the fourth screen support plate is rotatably installed to the first avoidance gap of the second screen support plate, the side of the third screen support plate is in contact with the first screen support plate The first side of the screen support plate is flush with the first side, the side of the fourth screen support plate is flush with the first side of the second screen support plate, and the third screen support plate is flush with the first side of the second screen support plate. A synchronous swing arm is disposed opposite to each other, and the fourth screen support plate is disposed opposite to the second synchronous swing arm. 8. The folding mechanism according to claim 7, wherein the opposite ends of the first avoidance gap of the first screen support plate are provided with fifth rotating parts, and the third screen support plate The opposite ends of each are provided with a sixth rotating part, one of the fifth rotating part and the sixth rotating part is provided with an arc-shaped slot, and the other includes an arc-shaped insert, and the arc-shaped The slot is rotationally connected with the arc plug. 9. The folding mechanism according to claim 7, characterized in that, the folding mechanism further comprises a fifth support plate, the fifth support plate is installed on the base, the third screen support plate and the first screen support plate The four screen support plates are all provided with a second avoidance gap, and in the unfolded state, the fifth support plate is embedded in the second avoidance gap of the third screen support plate and the second avoidance gap of the fourth screen support plate. within the gap. 10. The folding mechanism according to claim 9, wherein the fifth supporting plate is movably connected to the base along its own thickness direction, and in the unfolded state, the fifth supporting plate is movably connected along its own thickness direction The distance between the base and the base is a first distance; in the folded state, the distance between the fifth support plate and the base along its own thickness direction is a second distance, and the second distance is smaller than the Describe the first distance. 11. The folding mechanism according to claim 9, wherein a first overlapping edge is provided on the side of the third screen support plate and the fourth screen support plate close to the fifth support plate, so that The fifth support plate is provided with a second overlapping edge, and in the unfolded state, the second overlapping edge overlaps the first overlapping edge. 12. The folding mechanism according to claim 1, characterized in that, the folding mechanism further comprises a cover body, the cover body is fixedly connected to the side of the base part away from the first screen support plate, In the folded state, the projection of the cover on the plane where the distribution direction of the first screen support plate and the second screen support plate and the rotation axis of the second rotating part is located covers the third screen support plate, the fourth screen support plate, the first housing seat, the second housing seat and the base. 13. The folding mechanism according to claim 12, characterized in that, the first housing seat and/or the second housing seat comprise an avoidance structure, and the avoidance structure is provided with an avoidance groove, in which In the unfolded state, the sides of the cover are accommodated in the escape groove. 14. The folding mechanism according to claim 13, characterized in that, the first screen support plate and/or the second screen support plate are provided with a sinking groove, and in the folded state, the avoidance structure At least a part of is accommodated in the accommodating sink. 15. The folding mechanism according to claim 1, characterized in that, the base is provided with a receiving groove, and the receiving groove is provided with the first rotating part, the first housing seat and the second housing seat. At least a part of the second rotating part of the second housing seat is accommodated in the accommodation groove. 16. The folding mechanism according to claim 15, wherein one of the first rotating part and the second rotating part comprises a slider, and the other is provided with a sliding slot, and the sliding slot and the second rotating part The slider is a sliding fit. 17. The folding mechanism according to claim 16, characterized in that, the first rotating part is provided on opposite sides of the receiving groove, and the first housing seat and the second housing seat Both opposite sides are provided with the second rotating part. 18. The folding mechanism according to claim 1, characterized in that, in the direction of the rotation axis of the second rotating part, a plurality of the first rotating parts are arranged at intervals or in dislocation. 19. The folding mechanism according to claim 1, characterized in that the folding mechanism comprises a rotating assembly, the first screen support plate is rotatably connected to the first housing seat through a plurality of rotating assemblies, and the rotating The assembly includes a third rotating part and a fourth rotating part, one of the third rotating part and the fourth rotating part is connected to the first housing seat, and the other is connected to the first screen support plate, the third rotating part includes an insert block, the fourth rotating part is provided with a slot, and the insert block and the slot are provided with arc-shaped mating surfaces, and the insert block and the slot pass through The arc-shaped mating surface is rotationally mated. 20. The folding mechanism according to claim 19, characterized in that, the fourth rotating part comprises a limiting member and a matching member, the limiting member and the matching member enclose the slot, and the fitting The part is provided with the arc-shaped mating surface; In the direction of the rotation axis of the second rotating part, the limiting members of the two fourth rotating parts among the plurality of fourth rotating parts are arranged opposite to each other, and the plurality of third rotating parts The limit of the rotation part is arranged between the two limit members. 21. The folding mechanism according to claim 19, wherein the number of the first housing seat and/or the second housing seat is multiple, and at least one of the first housing seats passes through The rotating assembly is rotatably connected to the first screen support plate, and at least one second housing seat is rotatably connected to the second screen support plate through the rotating assembly. 22. A support structure, characterized by comprising a first housing, a second housing and the folding mechanism according to any one of claims 1-21, The first housing base is fixedly connected to the first housing, and the first housing and the first housing base are provided with an inclined avoidance support surface on a side facing the first screen support plate; The second housing base is fixedly connected to the second housing, and the second housing and the second housing base are provided with an inclined avoidance support surface on a side facing the second screen support plate; In the folded state, the first screen support board and the second screen support board are respectively supported on the corresponding inclined avoidance support surfaces. 23. An electronic device, characterized in that it comprises a flexible display screen and the support structure according to claim 22, the flexible display screen is installed on the support structure, and the flexible display screen can be supported by the first shell body, a second casing, a first screen support plate, a second screen support plate, the third screen support plate and the fourth screen support plate.

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