CN113163035B - Guide rail assembly and electronic device - Google Patents
Guide rail assembly and electronic device Download PDFInfo
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- CN113163035B CN113163035B CN202110428005.4A CN202110428005A CN113163035B CN 113163035 B CN113163035 B CN 113163035B CN 202110428005 A CN202110428005 A CN 202110428005A CN 113163035 B CN113163035 B CN 113163035B
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- guide rail
- rail
- shell
- housing
- extending direction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
- H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application discloses guide rail assembly and electron device, guide rail assembly are used for installing on electron device's casing, and guide rail assembly includes first guide rail, second guide rail and elasticity support and hold the piece. The first guide rail is arranged on the shell and has a movable allowance relative to the shell in the extending direction vertical to the first guide rail; the second guide rail is arranged in the first guide rail, and the second guide rail can move relative to the first guide rail in the first guide rail; the elastic supporting piece is arranged along the extending direction perpendicular to the first guide rail, and two ends of the elastic supporting piece respectively support the first guide rail and the shell. Therefore, in the moving process of the second guide rail, if the second guide rail is subjected to the action of the biasing force (namely, the action of the force which is not parallel to the first guide rail and the second guide rail), the first guide rail moves along the extending direction perpendicular to the first guide rail under the action of the second guide rail, and at the moment, the elastic abutting piece can be compressed to effectively offset the biasing force, so that the moving stability of the guide rail assembly is improved.
Description
Technical Field
The present application relates to the field of mechatronics, and more particularly, to a rail assembly and an electronic device.
Background
In the related art, the guide rail is applied to an electronic device such as a mobile phone, and in order to ensure accuracy, a gap between the guide rails is usually required to be small to avoid shaking, however, when the guide rail is biased, that is, is subjected to a force not parallel to the guide rail, the guide rail is likely to be jammed.
Disclosure of Invention
The embodiment of the application provides a guide rail assembly and an electronic device.
The guide rail assembly of the embodiment is used for being installed on a shell of an electronic device, and comprises:
a first rail mounted on the housing and having a movable margin with respect to the housing in an extending direction perpendicular to the first rail;
a second rail disposed within the first rail, the second rail being movable within the first rail relative to the first rail; and
the elastic propping piece is arranged along the extending direction perpendicular to the first guide rail, two ends of the elastic propping piece respectively prop against the first guide rail and the shell, and when the first guide rail moves along the extending direction perpendicular to the first guide rail, the elastic propping piece is compressed.
The electronic device according to the embodiment of the application includes:
a housing comprising a first shell and a second shell slidingly connected;
the flexible display screen is arranged on the shell, one end of the flexible display screen is connected with the first shell, the other end of the flexible display screen is arranged in the shell, the second shell can move relative to the first shell so that the part of the flexible display screen in the shell can be at least partially unfolded outside the shell, and therefore the display area of the electronic device is changed; and
a rail assembly mounted on the housing, the rail assembly comprising:
a first rail mounted on the first case and having a movable margin with respect to the first case in an extending direction perpendicular to the first rail;
a second rail disposed within the first rail, the second rail coupled to the second housing, the second rail being movable within the first rail relative to the first rail; and
the elastic propping piece is arranged along the extending direction perpendicular to the first guide rail, two ends of the elastic propping piece respectively prop against the first guide rail and the first shell, and when the first guide rail moves along the extending direction perpendicular to the first guide rail, the elastic propping piece is compressed.
In the guide rail assembly and the electronic device of the embodiments of the application, the second guide rail can move relative to the first guide rail in the first guide rail, two ends of the elastic supporting piece respectively support the first guide rail and the shell, and when the first guide rail moves along the extending direction perpendicular to the first guide rail, the elastic supporting piece can be compressed. So, in the second guide rail at the removal in-process, if the second guide rail receives the biasing force (receive the effect that is not parallel with first guide rail and second guide rail promptly), when first guide rail moves along the extending direction of perpendicular to first guide rail under the effect of second guide rail, at this moment, elasticity support the piece and can be compressed with effectual offset biasing force to make first guide rail and second guide rail can not appear receiving biasing force easily and appear blocking the phenomenon, simultaneously, when biasing force disappears, first guide rail can reset under the effect of elasticity support the piece, has improved the stability of guide rail subassembly motion.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic perspective view of an electronic device according to an embodiment of the present application;
FIG. 2 is another schematic perspective view of an electronic device according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of a partial perspective structure of an electronic device according to an embodiment of the present application;
FIG. 4 is a schematic perspective view of another portion of an electronic device according to an embodiment of the present disclosure;
FIG. 5 is a schematic perspective view of a further portion of an electronic device according to an embodiment of the present application;
FIG. 6 is a schematic perspective view of a rail assembly according to an embodiment of the present application;
FIG. 7 is a schematic structural view of an electronic device and rail assembly of an embodiment of the present application;
FIG. 8 is an enlarged schematic view of A of FIG. 7 in accordance with an embodiment of the present application;
FIG. 9 is a schematic plan view of a track assembly according to an embodiment of the present application;
FIG. 10 is a schematic cross-sectional view taken along line X-X in FIG. 9 in accordance with an embodiment of the present application;
FIG. 11 is an exploded view of a rail assembly of an embodiment of the present application;
fig. 12 is a schematic perspective view of a third rail according to an embodiment of the present application;
fig. 13 is a schematic plan view of the third rail according to the embodiment of the present application;
fig. 14 is a schematic cross-sectional view taken along line XIV-XIV in fig. 13 in accordance with an embodiment of the present application.
Description of main reference numerals:
an electronic device 100;
the housing 10, the first housing 11, the chute 111, the second housing 12, the flexible display 20, the flat portion 21, the extension portion 22, the rail assembly 30, the first rail 31, the bump 311, the first ball groove 312, the first stopper 313, the second stopper 314, the first mounting hole 315, the second mounting hole 316, the second rail 32, the accommodating space 321, the second ball groove 322, the first sub rail 323, the second sub rail 324, the third mounting hole 325, the fourth mounting hole 326, the first stopper 327, the second stopper 328, the guide 329, the third rail 33, the pulley block 331, the bracket 3311, the pulley 3312, the bearing 3313, the elastic supporting member 34, the ball 35, the connecting shaft 36, the elastic member 37, the first driving mechanism 40, and the second driving mechanism 50.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate a relationship between the various embodiments and/or settings discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.
Referring to fig. 1 to 5, an electronic device 100 according to an embodiment of the present application includes a housing 10, a flexible display 20, and a rail assembly 30 according to an embodiment of the present application. The housing 10 comprises a first 11 and a second 12 shell in sliding connection; the flexible display 20 is mounted on the housing 10, one end of the flexible display 20 is connected to the first case 11, and the other end is disposed in the housing 10, and the second case 12 can move relative to the first case 11 so that a portion of the flexible display 20 located in the housing 10 can be at least partially unfolded out of the housing 10, thereby changing a display area of the electronic device 100.
Referring to fig. 6 to 8, the embodiment of the present application provides a rail assembly 30, where the rail assembly 30 is configured to be mounted on a housing 10 of an electronic device 100, and the rail assembly 30 includes a first rail 31, a second rail 32, and an elastic supporting member 34.
The first rail 31 is mounted on the first housing 11 with a movable margin with respect to the first housing 11 in a direction perpendicular to an extending direction of the first rail 31. The second guide rail 32 is disposed within the first guide rail 31, the second guide rail 32 is connected to the second housing 12, and the second guide rail 32 is movable within the first guide rail 31 with respect to the first guide rail 31. The elastic supporting piece 34 is arranged along the extending direction perpendicular to the first guide rail 31, two ends of the elastic supporting piece 34 respectively support the first guide rail 31 and the first shell 11, and when the first guide rail 31 moves along the extending direction perpendicular to the first guide rail 31, the elastic supporting piece 34 is compressed.
In this context, the term "extending direction of the first rail 31" refers to the longitudinal direction of the rail, as shown in fig. 6, that is, the sliding direction of the second rail 32 and the first rail 31 in normal conditions.
In the rail assembly 30 and the electronic device 100 of the present embodiment, the second rail 32 is capable of moving relative to the first rail 31 within the first rail 31, both ends of the elastic supporting member 34 respectively support the first rail 31 and the housing 10, and the elastic supporting member 34 can be compressed when the first rail 31 moves in the extending direction perpendicular to the first rail 31. Thus, in the moving process of the second guide rail 32, if the second guide rail 32 receives a biasing force (i.e. receives a force that is not parallel to the first guide rail 31 and the second guide rail 32), when the first guide rail 31 moves along the extending direction perpendicular to the first guide rail 31 under the action of the second guide rail 32, at this time, the elastic supporting member 34 will be compressed to effectively offset the biasing force, so that the first guide rail 31 and the second guide rail 32 will not be easy to be blocked due to the biasing force, and meanwhile, when the biasing force disappears, the first guide rail 31 will be reset under the action of the elastic supporting member 34, thereby improving the stability of the movement of the guide rail assembly 30.
Specifically, referring to fig. 1 to 2, the flexible display screen 20 may include a flat portion 21 and an extension portion 22 connected to the flat portion 21, wherein the flat portion 21 is fixedly connected to the second housing 12, and the extension portion 22 can be hidden in the housing 10, that is, one end of the flexible display screen 20 is connected to the second housing 12, and the other end is hidden in the housing 10. In this way, the second casing 12 may slide with respect to the first casing 11 to at least partially extend the flexible display screen 20 out of the casing 10 or retract into the casing 10, thereby adjusting the display area of the electronic device 100.
Further, the electronic device 100 in the embodiment of the present application may include two modes. The first configuration is a configuration in which the first case 11 and the second case 12 are fitted together (as shown in fig. 1), that is, a configuration in which the electronic device 100 is located when the first case 11 and the second case 12 are close to each other and move to the limit position, in which the flat portion 21 of the flexible display 20 is exposed outside the case 10, the extension 22 is substantially completely hidden in the case 10, and the electronic device 100 has a small display area and is convenient to carry. The second configuration is a configuration in which the second casing 12 moves away from the first casing 11 to drive the expansion portion 22 of the flexible display 20 to be gradually expanded out of the casing 10 (see fig. 2), and in the second configuration, the expansion portion 22 of the flexible display 20 is at least partially expanded out of the casing 10 to form a display portion of the electronic device 100 together with the flat portion 21, so that a display area of the electronic device 100 is larger, and a better display effect is provided for a user.
In the present embodiment, "display area" refers to the area of the portion of the flexible display screen 20 exposed outside the housing 10 for display.
Referring to fig. 5, in some embodiments, the electronic device 100 further includes a first driving mechanism 40 and a second driving mechanism 50 symmetrically disposed on the first housing 11, where each of the first driving mechanism 40 and the second driving mechanism 50 is connected to the second housing 12 and is used for driving the second housing 12 to slide relative to the first housing 11.
In this manner, the first driving mechanism 40 and the second driving mechanism 50 can provide a sufficient driving force to drive the second casing 12 to move relative to the first casing 11, so that the flexible display screen 20 is at least partially unfolded out of the casing 10 or retracted into the casing 10, and thus the display area of the electronic device 100 is adjusted.
Specifically, the first driving mechanism 40 and the second driving mechanism 50 may use a motor and a rack-and-pinion transmission to drive the second housing 12 to slide relative to the first housing 11, or may drive the second housing 12 to slide relative to the first housing 11 by means of a lead screw nut, which is not limited herein.
In one possible embodiment, a reel may be provided in the housing 10, and the end of the expansion portion 22 located in the body may be wound around the reel, and the reel may release the expansion portion 22 when the second housing 12 and the first housing 11 are away from each other, so that the expansion portion 22 is gradually unwound out of the housing 10, and the reel may gradually wind up the expansion portion 22 when the second housing 12 and the first housing 11 are close to each other, so that the expansion portion 22 is gradually retracted into the housing 10. Of course, it will be appreciated that in other embodiments, a movable pulley structure may be provided within the housing 10, to which one end of the extension 22 may be attached by a pull cord, with the deployment and retraction of the extension 22 being accomplished by the movable pulley structure.
It will be appreciated that the first drive mechanism 40 and the second drive mechanism 50 are mounted within the first housing 11 to drive the second housing 12 to move relative to the first housing 11, and that the second housing 12 can move relative to the first housing 11 to move the flexible display 20, thereby switching the electronic device 100 between the two configurations. In the embodiment of the present application, the first case 11 in the electronic device 100 may serve as a main body supporting structure of the electronic device 100, and the first case 11 may house therein the first driving mechanism 40, the second driving mechanism 50, the rail assembly 30, the speaker, the circuit board, the battery, and the like. In addition, in some embodiments, the second shell 12 may be slightly smaller than the first shell 11, such that the second shell 12 may also be entirely retracted inside the first shell 11. In some embodiments, the first and second shells 11, 12 may have similar shapes, and the second shell 12 cooperates with the first shell 11 to form a complete support structure, while allowing for a symmetrical aesthetic appearance of the flexible display 20 after deployment.
Specifically, in the illustrated embodiment, the first case 11 is slidably connected to the second case 12, and the expansion portion 22 of the flexible display screen 20 may be disposed inside the case 10, belonging to a hidden structure. Referring to fig. 1, in a first configuration, the extended portion 22 of the flexible display 20 is not used for display and only the flattened portion 21 is used for display. Upon a separation movement of the second housing 12 relative to the first housing 11, the flexible display 20 may be moved such that the extension 22 of the flexible display 20 is at least partially pulled out of the housing 10 to switch to the second configuration. In the second configuration, the extension 22 is at least partially pulled out of the housing 10, and the flat portion 21 and the extension 22 are simultaneously used for display, thereby changing the display area of the electronic device 100.
In the process of switching between the two modes, the first driving mechanism 40 and the second driving mechanism 50 are used for providing driving force, and the guide rail assembly 30 is used for guiding the relative sliding of the first shell 11 and the second shell 12, so that the movement form of the second shell 12 relative to the first shell 11 is linear reciprocating movement, and the phenomenon of shell jamming or even jamming is avoided.
In the embodiment of the present application, the first driving mechanism 40 and the second driving mechanism 50 are symmetrically disposed on the first housing 11, and both drive the second housing 12 to move relative to the first housing 11. It will be appreciated that during driving of the first drive mechanism 40 and the second drive mechanism 50, drive dyssynchrony may occur due to manufacturing errors and assembly errors of the mechanisms, thereby causing the second housing 12 to skew relative to the first housing 11. The first rail 31 is mounted on the first housing 11 and the second housing 12 is coupled to the second rail 32, and a skew of the second housing 12 with respect to the first housing 11 is transmitted to the rail assembly 30 such that the second rail 32 and the first rail 31 are movable with respect to the first housing 11 in a direction perpendicular to an extending direction of the first rail 31. The elastic supporting member 34 is disposed on the first shell 11 along the extending direction perpendicular to the first rail 31, two ends of the elastic supporting member 34 respectively support the first rail 31 and the first shell 11, so that the elastic supporting member 34 can compress and absorb the biasing force, and the rail assembly 30 is reset under the action of the elastic force of the elastic supporting member 34, so that the rail assembly 30 is prevented from being blocked due to the fact that two driving mechanisms are driven differently.
In one example, the first drive mechanism 40 drives faster than the second drive mechanism 50 such that the second housing 12 is skewed relative to the first housing 11, the second housing 12 transmits a biasing force to the second rail 32, and the second rail 32 pushes the first rail 31 downward toward a direction perpendicular to the extending direction of the first rail 31, at which time the resilient abutment 34 disposed in that direction is compressed to absorb the biasing force and rebound. When the biasing force is eliminated, the elastic propping piece 34 rebounds to prop against the guide rail assembly 30 to reset, so that the second shell 12 is pushed to reset relative to the first shell 11, and the problem that the second shell 12 is askew and blocked relative to the first shell 11 for a long time is avoided.
In the embodiment of the present application, the specific material of the elastic supporting member 34 is not limited, and the elastic supporting member 34 may be a spring, a silicone, or other elastic element to meet different requirements.
Furthermore, in the description of embodiments of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
It should be noted that in the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. Furthermore, it should be noted that in the description of the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In the embodiment of the present application, the extension 22 can be hidden in the case 10, and it is understood that the extension 22 can be received in the inner space of the case 10 and not exposed, or the extension 22 can be hidden in the rear surface of the case 10 and exposed from the rear surface, and herein, the extension 22 can be received in the inner space of the case 10 and not exposed is described as an example.
The electronic device 100 in this embodiment of the present application may be a mobile terminal device such as a smart phone or a tablet computer, or may be a device that can be equipped with a display device, such as a game device, a car-mounted computer, a notebook computer, or a video player, and is not specifically shown here.
Referring to fig. 7 and 8, in some embodiments, a chute 111 is formed on the first shell 11, a bump 311 is formed on the first rail 31, the bump 311 is slidably engaged with the chute 111 to enable the first rail 31 to have a movable margin in a direction perpendicular to an extending direction of the first rail 31 relative to the housing 10, the elastic supporting member 34 is disposed in the chute 111, one end of the elastic supporting member 34 abuts against an inner wall of the chute 111, and the other end abuts against the bump 311.
In this way, the elastic supporting member 34 may be disposed in the chute 111 of the housing 10, when the rail assembly 30 receives the biasing force, the bump 311 will move toward the elastic supporting member 34 to compress the elastic supporting member 34, and when the elastic supporting member 34 compresses, an elastic force is generated to effectively offset the biasing force.
Specifically, the bump 311 may extend into the sliding groove 111 at least partially along the extending direction perpendicular to the first guide rail 31, and the first guide rail 31 may drive the guide rail assembly 30 to move along the sliding groove 111, and the sliding groove 111 is the extending direction perpendicular to the first guide rail 31. In this way, when the first rail 31 moves upward or downward relative to the first housing 11 along the direction perpendicular to the extending direction of the first rail 31, the protrusion 311 in the opposite direction can also extend into the chute 111, so as to avoid the first rail 31 from falling off from the first housing 11. Meanwhile, the bump 311 is matched with the chute 111 to block the elastic supporting member 34 in the chute 111, so as to prevent the elastic supporting member 34 from falling off from the chute 111.
Further, the protruding blocks 311 may be symmetrically disposed on two sides of the first rail 31 along the extending direction perpendicular to the first rail 31, and the sliding grooves 111 are matched with each other, and an elastic supporting member 34 is disposed in each sliding groove 111. In this way, the first guide rail 31 can be moved up or down, so that the protrusion 311, the elastic supporting member 34 and the chute 111 can be engaged.
In the embodiment of the present application, the number of the protruding blocks 311, the elastic supporting members 34 and the sliding grooves 111 is not limited, and the number of the protruding blocks 311, the elastic supporting members 34 and the sliding grooves 111 may be two, four, six or more, so as to satisfy the requirement.
Referring to fig. 9 and 10, in some embodiments, the rail assembly 30 further includes a ball 35, a receiving space 321 is formed between the second rail 32 and the first rail 31, the ball 35 is rollably disposed in the receiving space 321 and abuts against the first rail 31 and the second rail 32, respectively, and the ball 35 rolls in the receiving space 321 when the second rail 32 moves relative to the first rail 31.
In this way, the balls 35 are rollably disposed in the accommodating space 321, so that friction between the first guide rail 31 and the second guide rail 32 can be reduced, unstable movement and even blocking of the first shell 11 and the second shell 12 due to excessive abrasion of the first guide rail 31 and the second guide rail 32 can be avoided, and stability of relative movement of the first shell 11 and the second shell 12 can be improved.
Specifically, a receiving space 321 is formed between the first rail 31 and the second rail 32 to mount the balls 35 in the receiving space 321. The balls 35 are abutted between the first guide rail 31 and the second guide rail 32, so that when the second guide rail 32 moves relative to the first guide rail 31, the balls 35 roll between the first guide rail 31 and the second guide rail 32, rolling friction is formed between the balls 35 and the first guide rail 31 and the second guide rail 32, friction force relative to direct sliding friction of the first guide rail 31 and the second guide rail 32 is smaller, and the phenomenon that movement is unstable due to large abrasion between the balls and the friction force is prevented, and electronic components in the electronic device 100 are short-circuited due to the fact that more powder is generated when the balls and the second guide rail are made of metal materials.
In one example, the user can manually pull the housing 10 of the electronic device 100 open, and the second guide rail 32 moves in the first guide rail 31 to drive the balls 35 to roll in the accommodating space 321, and the second housing 12 is separated from the first housing 11 to drive the flexible display 20 to be unfolded. In yet another example, the user may manually push the housing 10 of the electronic device 100, and the second guide rail 32 moves in the first guide rail 31 to drive the balls 35 to roll in the accommodating space 321, and the second housing 12 approaches the first housing 11 to drive the flexible display 20 to be closed to complete retraction.
Further, when the first driving mechanism 40 and the second driving mechanism 50 are not synchronous, and the second casing 12 is askew relative to the first casing 11, the second casing 12 may drive the second guide rail 32 to be askew relative to the first guide rail 31. At this time, one end space of the accommodating space 321 is narrowed, and the second guide rail 32 generates a biasing force with respect to the first guide rail 31 to press the balls 35. Without the resilient abutment 34, the balls 35 would be pressed by the biasing force of the second rail 32 against the first rail 31, stopping rolling, damaging the rail assembly 30 and the balls 35. In the embodiment of the present application, when the second rail 32 generates a biasing force with respect to the first rail 31, the first rail 31 further compresses the elastic supporting member 34, so as to avoid the ball 35 from being pressed by the biasing force of the second rail 32 with respect to the first rail 31, which causes the rail assembly 30 to be jammed or even blocked.
In addition, in the embodiment of the present application, the driving manner of opening and closing the flexible display 20 is not limited, and may be manual by a user, or may be driven by the first driving mechanism 40 and the second driving mechanism 50, so as to satisfy various requirements.
Referring to fig. 10 and 11, in some embodiments, the first guide rail 31 is formed with a first ball groove 312, the second guide rail 32 is formed with a second ball groove 322, and the inner wall of the first ball groove 312 and the inner wall of the second ball groove 322 together define a receiving space 321, and the balls 35 respectively abut against the inner wall of the first ball groove 312 and the inner wall of the second ball groove 322.
In this way, the balls 35 are disposed in the accommodating space 321 and respectively in abutting fit with the inner walls of the first ball groove 312 and the second ball groove 322, so that when the first guide rail 31 and the second guide rail 32 relatively move, the balls 35 roll between the first ball groove 312 and the second ball groove 322, rolling friction is realized, and sliding resistance is reduced.
Specifically, the balls 35 are disposed in the accommodation space 321 such that the balls 35 can abut against the inner wall of the first ball groove 312 and the inner wall of the second ball groove 322, respectively, so that rolling friction is achieved by rolling of the balls 35 when the second rail 32 moves relative to the first rail 31. At the same time, the rolling direction of the balls 35 coincides with the direction of the linear reciprocating movement of the first rail 31. The second guide rail 32 is ensured to move smoothly with respect to the first guide rail 31, and thus the first and second cases 11 and 12 can slide smoothly.
Further, the first guide rail 31 is formed with two first ball grooves 312, and the second guide rail 32 is also formed with two second ball grooves 322, so that the first guide rail 31 and the second guide rail 32 can be combined to form two accommodating spaces 321, and two groups of balls 35 are respectively arranged in the two accommodating spaces 321, so that rolling friction can be realized along two sides of the first guide rail 31 by the second guide rail 32.
In the embodiment of the present application, the number of the balls 35 in the accommodating space 321 is not limited. The number of the balls 35 in the two accommodating spaces 321 is the same as the number of the balls 35 in the one group, such as eight, nine, ten, and more, so as to satisfy different demands.
Referring to fig. 10 and 11, in some embodiments, along the extending direction of the first rail 31, a first limiting member 313 and a second limiting member 314 are disposed on the first rail 31 at intervals, the first limiting member 313 and the second limiting member 314 are located at two ends of the accommodating space 321, the ball 35 is located between the first limiting member 313 and the second limiting member 314, and the first limiting member 313 and the second limiting member 314 are used for limiting the relative positions of the ball 35 and the first rail 31.
In this way, the first limiting member 313 and the second limiting member 314 are disposed at two ends of the first guide rail 31 to limit the balls 35, so that the balls 35 roll in the accommodating space 321, and the balls 35 are prevented from sliding out of the accommodating space 321 during the sliding process of the first guide rail 31 relative to the second guide rail 32.
Specifically, the first rail 31 is provided with first mounting holes 315 and second mounting holes 316 at intervals along the extending direction of the first rail 31, and the first mounting holes 315 and the second mounting holes 316 communicate with the first ball grooves 312. The first limiting member 313 penetrates through the first mounting hole 315 and partially extends into the first ball groove 312, the second limiting member 314 penetrates through the second mounting hole 316 and partially extends into the first ball groove 312, and the ball 35 is arranged between the first limiting member 313 and the second limiting member 314, so that the first limiting member 313 and the second limiting member 314 can limit the ball 35 to prevent the ball 35 from sliding out of the first ball groove 312.
Referring to fig. 9 and 11, in some embodiments, the second guide rail 32 includes a first sub-rail 323 and a second sub-rail 324 that are disposed opposite to each other, the guide rail assembly 30 further includes a connecting shaft 36 and an elastic member 37 sleeved on the connecting shaft 36, two ends of the connecting shaft 36 are respectively connected to the first sub-rail 323 and the second sub-rail 324, and two ends of the elastic member 37 respectively support the first sub-rail 323 and the second sub-rail 324.
In this way, the connecting shaft 36 is disposed between the first sub-rail 323 and the second sub-rail 324, so that the first sub-rail 323 and the second sub-rail 324 can be assembled together, and the elastic member 37 can limit the relative positions of the first sub-rail 323 and the second sub-rail 324, so as to avoid the ball 35 sliding out due to too close distance between the first sub-rail 323 and the second sub-rail 324.
Specifically, the first sub-rail 323 and the second sub-rail 324 may be provided with third mounting holes 325 and fourth mounting holes 326 at intervals along the extending direction of the second guide rail 32, the third mounting holes 325 and the fourth mounting holes 326 being provided at both ends of the second ball grooves 322 of the first sub-rail 323 and the second sub-rail 324, the first sub-rail 323 and the second sub-rail 324 being connected together by the connecting shaft 36 to constitute the second guide rail 32.
In the assembly process, the two elastic members 37 may be sleeved on the two connecting shafts 36, and then the two connecting shafts 36 may be respectively inserted into the third mounting hole 325 and the fourth mounting hole 326 to form the second guide rail 32. The balls 35 are placed in the first ball grooves 312, and the second guide rail 32 is placed in the first guide rail 31 such that the balls 35 are accommodated in the accommodation spaces 321 formed by the first ball grooves 312 and the second ball grooves 322. Then, the elastic supporting member 34 is placed in the sliding groove 111 of the first shell 11, and the first guide rail 31 is mounted on the first shell 11 so that the protruding block 311 and the inner wall of the sliding groove 111 can support the two ends of the elastic supporting member 34.
In some embodiments, when the second rail 32 is assembled to the first rail 31, the spring 37 is in a normally relaxed state, and the spring 37 may be slightly compressed during assembly to facilitate installation.
In other embodiments, after the second rail 32 is assembled on the first rail 31, the elastic member 37 has a certain compression amount, and the first sub-rail 323 and the second sub-rail 324 can be respectively moved in a direction away from each other, so that the second ball grooves 322 of the first sub-rail 323 and the second sub-rail 324 can abut against the balls 35, thereby realizing rolling friction between the first rail 31 and the second rail 32.
Referring to fig. 9 and 11, in some embodiments, a first limiting portion 327 and a second limiting portion 328 are formed at two ends of the second rail 32, and the first limiting portion 327 and the second limiting portion 328 can abut against the first rail 31 during the movement of the second rail 32 relative to the first rail 31, so as to limit the movement stroke of the second rail 32.
In this way, during the movement of the second rail 32 relative to the first rail 31, the first limiting portion 327 and the second limiting portion 328 can limit two limit positions of the second rail 32, respectively, so as to avoid the second rail 32 from sliding out of the first rail 31 during the sliding process.
Specifically, the first limiting portion 327 and the second limiting portion 328 are respectively disposed at two ends of the second guide rail 32, so that when the second guide rail 32 moves to a movement limit on the first guide rail 31, the first limiting portion 327 and the second limiting portion 328 at two ends can be respectively clamped on the first guide rail 31, thereby avoiding the second guide rail 32 from sliding out of the first guide rail 31, and further ensuring the stability of the movement of the guide rail assembly 30.
Referring to fig. 9 to 11, in some embodiments, the rail assembly 30 further includes a third rail 33, the third rail 33 is movably mounted on the second rail 32, the third rail 33 is connected to the second shell 12, the third rail 33 includes a pulley block 331, a guide portion 329 is formed on the second rail 32, and the pulley block 331 is in rolling connection with the guide portion 329.
In this way, the third guide rail 33 and the second guide rail 32 may form a further sliding structure, further lengthening the travel of the guide rail assembly 30, so that the second housing 12 may have a longer travel relative to the first housing 11.
Specifically, the third rail 33 is fixedly connected to the second housing 12, the first rail 31 is fixedly connected to the first housing 11, and the second rail 32 is simultaneously connected to the first rail 31 and the second rail 32. The balls 35 are rollably disposed between the first rail 31 and the second rail 32, and the pulley block 331 is rollably disposed between the second rail 32 and the third rail 33. The balls 35 and the pulley blocks 331 between the three guide rails can enable the guide rail assembly 30 to realize reciprocating movement along the length direction of the guide rails, further increase the moving stroke of the second shell 12 relative to the first shell 11, and further drive the flexible display screen 20 to be unfolded and closed. The design of three guide rails allows the flexible display 20 to be larger, thereby allowing a larger display area for the electronic device 100.
Referring to fig. 12-14, in some embodiments, the pulley block 331 includes a support 3311 and a pulley 3312, the pulley 3312 being rotatably disposed on the support 3311 and in rolling connection with the guide 329.
In this way, the support 3311 may support the pulley 3312, and the pulley 3312 rolls on the guide 329 to move the support 3311, thereby moving the third rail 33 relative to the second rail 32.
Specifically, the carrier 3311 may be connected to the second housing 12 as a main body supporting structure of the third guide rail 33, and the pulley block 331 may include two pulleys 3312, the two pulleys 3312 being disposed at both ends of the carrier 3311, respectively, and between the first sub-rail 323 and the second sub-rail 324. The first sub-rail 323 and the second sub-rail 324 of the second guide rail 32 are formed with guide portions 329, respectively, and two pulleys 3312 are provided between the two guide portions 329.
It will be appreciated that the two pulleys 3312 may bear against one of the guides 329 of the first sub-rail 323 and the second sub-rail 324 as the third rail 33 moves relative to the second rail 32 to ensure smooth movement of the third rail 33 relative to the second rail 32.
Further, referring to fig. 14, in some embodiments, the pulley block 331 further includes a bearing 3313, where one of an outer ring and an inner ring of the bearing 3313 is fixedly connected to the support 3311, and the other is fixedly connected to the pulley 3312.
In this way, the bearing 3313 is disposed between the support 3311 and the pulley 3312, so as to effectively reduce the friction coefficient of the pulley 3312 during rotation, and avoid the third rail 33 from being jammed when moving relative to the second rail 32.
Illustratively, the support 3311 may include a rotating shaft (not shown) on which a bearing 3313 may be sleeved, such that an inner ring of the bearing 3313 is fixedly connected to the support 3311 and an outer ring of the bearing 3313 is fixedly connected to the pulley 3312, such that the pulley 3312 may rotate smoothly with respect to the support 3311.
In the description of embodiments of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the present application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the present application.
Claims (12)
1. A rail assembly for mounting on a housing of an electronic device, the rail assembly comprising:
a first rail mounted on the housing and having a movable margin with respect to the housing in an extending direction perpendicular to the first rail;
a second rail disposed within the first rail, the second rail being movable within the first rail relative to the first rail; and
the elastic propping piece is arranged along the extending direction perpendicular to the first guide rail, two ends of the elastic propping piece respectively prop against the first guide rail and the shell, and when the first guide rail moves along the extending direction perpendicular to the first guide rail, the elastic propping piece is compressed;
the first guide rail is provided with a lug which is in sliding fit with the sliding groove on the shell, so that the first guide rail has a movable allowance relative to the shell in the extending direction perpendicular to the first guide rail, the elastic supporting piece is arranged in the sliding groove, one end of the elastic supporting piece supports against the inner wall of the sliding groove, and the other end supports against the lug.
2. The guide rail assembly of claim 1, further comprising a ball bearing, wherein a receiving space is formed between the second guide rail and the first guide rail, wherein the ball bearing is rollably disposed within the receiving space and respectively abuts the first guide rail and the second guide rail, and wherein the ball bearing rolls within the receiving space when the second guide rail moves relative to the first guide rail.
3. The guide rail assembly according to claim 2, wherein the first guide rail is formed with a first ball groove, the second guide rail is formed with a second ball groove, an inner wall of the first ball groove and an inner wall of the second ball groove jointly define the accommodating space, and the balls respectively abut against the inner wall of the first ball groove and the inner wall of the second ball groove.
4. The guide rail assembly according to claim 2, wherein a first limiting member and a second limiting member are disposed on the first guide rail at intervals along an extending direction of the first guide rail, the first limiting member and the second limiting member are located at two ends of the accommodating space, the ball is located between the first limiting member and the second limiting member, and the first limiting member and the second limiting member are used for limiting a relative position of the ball and the first guide rail.
5. The guide rail assembly according to claim 1, wherein the second guide rail comprises a first sub-rail and a second sub-rail which are oppositely arranged, the guide rail assembly further comprises a connecting shaft and an elastic piece sleeved on the connecting shaft, two ends of the connecting shaft are respectively connected with the first sub-rail and the second sub-rail, and two ends of the elastic piece respectively support against the first sub-rail and the second sub-rail.
6. The guide rail assembly according to claim 1, wherein a first limit portion and a second limit portion are formed at both ends of the second guide rail, respectively, and the first limit portion and the second limit portion can abut against the first guide rail during movement of the second guide rail relative to the first guide rail so as to limit a movement stroke of the second guide rail.
7. The guide rail assembly of claim 1, further comprising a third guide rail movably mounted on the second guide rail, the third guide rail comprising a pulley block formed on the second guide rail, the pulley block being in rolling connection with the guide.
8. The guide rail assembly of claim 7, wherein the pulley block comprises a bracket and a pulley rotatably disposed on the bracket and in rolling connection with the guide.
9. The guide rail assembly of claim 8, wherein the pulley block further comprises a bearing, one of an outer race and an inner race of the bearing being fixedly connected to the bracket, the other being fixedly connected to the pulley.
10. An electronic device, comprising:
a housing comprising a first shell and a second shell slidingly connected;
the flexible display screen is arranged on the shell, one end of the flexible display screen is connected with the first shell, the other end of the flexible display screen is arranged in the shell, the second shell can move relative to the first shell so that the part of the flexible display screen in the shell can be at least partially unfolded outside the shell, and therefore the display area of the electronic device is changed; and
a rail assembly mounted on the housing, the rail assembly comprising:
a first rail mounted on the first case and having a movable margin with respect to the first case in an extending direction perpendicular to the first rail;
a second rail disposed within the first rail, the second rail coupled to the second housing, the second rail being movable within the first rail relative to the first rail; and
the elastic propping piece is arranged along the extending direction perpendicular to the first guide rail, two ends of the elastic propping piece respectively prop against the first guide rail and the first shell, and when the first guide rail moves along the extending direction perpendicular to the first guide rail, the elastic propping piece is compressed;
the first shell is provided with a chute, the first guide rail is provided with a lug, the lug is in sliding fit with the chute so that the first guide rail has a movable allowance relative to the shell in the extending direction perpendicular to the first guide rail, the elastic supporting piece is arranged in the chute, one end of the elastic supporting piece supports against the inner wall of the chute, and the other end supports against the lug.
11. The electronic device of claim 10, wherein the rail assembly further comprises a third rail movably coupled to the second rail, the third rail coupled to the second housing.
12. The electronic device of claim 10, further comprising a first drive mechanism and a second drive mechanism symmetrically disposed on the first housing, each of the first drive mechanism and the second drive mechanism being coupled to the second housing and configured to drive the second housing to slide relative to the first housing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110428005.4A CN113163035B (en) | 2021-04-21 | 2021-04-21 | Guide rail assembly and electronic device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110428005.4A CN113163035B (en) | 2021-04-21 | 2021-04-21 | Guide rail assembly and electronic device |
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| CN113163035A CN113163035A (en) | 2021-07-23 |
| CN113163035B true CN113163035B (en) | 2023-04-21 |
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| CN114338869A (en) * | 2021-12-14 | 2022-04-12 | 歌尔股份有限公司 | Electronic equipment |
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