Sliding components and electronic equipment

Abstract

This application relates to a sliding component and an electronic device. The sliding component includes a guide rail, a base, and a plurality of rigid balls. The guide rail has a guide groove, and the base has a circulation channel. The base and the guide rail are elastically fitted together. The plurality of rigid balls are arranged along the guide groove and the circulation channel. When the base moves along the guide rail, at least some of the plurality of rigid balls enter or exit the guide groove through the circulation channel. The sliding component and electronic device of this application utilize the rolling of the rigid balls to reduce friction between the base and the guide rail. Furthermore, the elastic fit between the base and the guide rail can absorb the deflection displacement between them, thereby maintaining a smooth sliding effect, reducing motion resistance, and reducing the occurrence of jamming.

Description

Technical Field

[0001] This application relates to the field of electronic device technology, and in particular to sliding components and electronic devices. Background Technology

[0002] Currently, retractable electronic devices, including flexible displays, have emerged. When the electronic device is in the unfolded state, its flexible display has a larger display area, while when the electronic device is in the retracted state, its flexible display has a smaller display area. The display area can be adjusted by switching between the unfolded and retracted states.

[0003] In related technologies, electronic devices can be equipped with sliding components to guide the relative movement of the device's housing components. However, this structural arrangement still has problems, such as high resistance to the movement of the sliding components, or even jamming, which affects the usability of the electronic device. Summary of the Invention

[0004] This application provides a sliding component and an electronic device to solve the technical problem that sliding components are prone to high motion resistance or jamming.

[0005] On the one hand, this application provides a transmission mechanism, including:

[0006] The guide rail has guide grooves;

[0007] A base having a circulation channel, the base being elastically fitted with the guide rail; and

[0008] Multiple rigid balls are arranged along the guide groove and the circulation channel. When the base moves along the guide rail, at least some of the multiple rigid balls enter or exit the guide groove through the circulation channel.

[0009] On the other hand, this application provides an electronic device including a housing assembly and a sliding assembly as described above. The housing assembly includes a first housing and a second housing that is movable relative to the first housing. The first housing is connected to a guide rail in the sliding assembly, and the second housing is connected to a base in the sliding assembly. When the first housing and the second housing move relative to each other, the base moves along the guide rail.

[0010] The aforementioned sliding assembly and electronic device include a guide rail, a base, and a plurality of rigid balls. The guide rail has a guide groove, and the base has a circulation channel. When the base moves along the guide rail, at least some of the plurality of rigid balls enter or exit the guide groove through the circulation channel to reduce friction between the base and the guide rail by utilizing the rolling of the rigid balls. Furthermore, the base and the guide rail are elastically matched to absorb the deflection displacement when the base moves along the guide rail, thereby maintaining smooth sliding between the base and the guide rail, reducing motion resistance, and reducing the occurrence of jamming. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 A three-dimensional schematic diagram of an electronic device in its folded state according to one embodiment;

[0013] Figure 2 A three-dimensional schematic diagram of an electronic device in its unfolded state according to one embodiment;

[0014] Figure 3 A schematic diagram of the structure of a sliding component according to one embodiment;

[0015] Figure 4 A sliding component in one embodiment along Figure 3 A schematic diagram of the cross-sectional structure of line II;

[0016] Figure 5 In another embodiment, the sliding component along Figure 3 A schematic diagram of the cross-sectional structure of line II;

[0017] Figure 6 for Figure 5 The sliding component shown along Figure 3 A schematic diagram of the cross-sectional structure of line II-II;

[0018] Figure 7 A sliding component in one embodiment along Figure 3 A schematic diagram of the cross-sectional structure of line II-II;

[0019] Figure 8 for Figure 7 The diagram shown illustrates the structure of the sliding assembly when the guide rail is deflected clockwise relative to the base to its limit position.

[0020] Figure 9 for Figure 7 The diagram shown illustrates the structure of the sliding assembly when the guide rail is deflected counterclockwise relative to the base to its limit position.

[0021] Figure 10 for Figure 7 The diagram shows a sliding assembly in which the guide rail deflects relative to the base in a plane.

[0022] Figure label:

[0023] 100. Electronic device; 10. Housing assembly; 12. First housing; 14. Second housing; 20. Flexible display screen; 20a. Display interface; 30. Sliding assembly; 31. Guide rail; 31a. Guide groove; 32. Base; 321. Connecting body; 322. Stop; 322a. Arc-shaped guide groove; 32a. Circulation channel; 32b. Mounting groove; 32c. Groove opening; 32d. Groove bottom; 33. Rigid ball; 34. Floating seat; 34a. Receiving groove; 34b. Groove; 341. Main body; 342. Limiting part; 35. Elastomer; 36. Elastic ball; 37. Conduit. Detailed Implementation

[0024] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0025] As used herein, "electronic device" refers to, but is not limited to, a device capable of receiving and / or transmitting communication signals connected via any one or more of the following connection methods:

[0026] (1) Via wired connection, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, or direct cable connection;

[0027] (2) Via wireless interface, such as cellular network, wireless local area network (WLAN), digital television network such as DVB-H network, satellite network, AM-FM broadcast transmitter.

[0028] An electronic device configured to communicate via a wireless interface can be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:

[0029] (1) Satellite phone or cellular phone;

[0030] (2) A personal communications system (PCS) terminal that can combine cellular radio telephone with data processing, fax and data communication capabilities;

[0031] (3) Radio telephone, pager, Internet / intranet access, web browser, notepad, calendar, personal digital assistant (PDA) equipped with a Global Positioning System (GPS) receiver;

[0032] (4) Conventional above-knee and / or palm-sized receivers;

[0033] (5) Conventional knee-mounted and / or handheld wireless telephone transceivers, etc.

[0034] Combination Figure 1 and Figure 2 As shown, the electronic device 100 of this application embodiment includes a housing assembly 10 and a flexible display screen 20. The housing assembly 10 has a hollow structure. The electronic device 100 may also include a circuit board and a battery, both of which can be disposed inside the housing assembly 10. The circuit board may integrate the processor, power management module, storage unit, and baseband chip of the electronic device 100. The flexible display screen 20 is communicatively connected to the circuit board, and the battery can power the flexible display screen 20 and the electronic components on the circuit board. Of course, the electronic device 100 may also include a camera module, which is communicatively connected to the circuit board, and the battery can power the camera module. It is understood that the electronic device 100 of this application embodiment includes, but is not limited to, mobile phones, tablet computers, and other terminal devices or other portable electronic devices 100. In this application embodiment, a mobile phone is used as an example for description.

[0035] Combination Figure 1 and Figure 2 As shown, in this embodiment of the application, the shell assembly 10 has a folded state (e.g., Figure 1 (as shown) and the unfolded state, which is the opposite of the folded state (as shown) Figure 2 (As shown). The shell assembly 10 can switch between a folded state and an unfolded state to adjust the display area of ​​the display interface 20a of the flexible display screen 20. It can be understood that the flexible display screen 20 is disposed on the shell assembly 10. When the shell assembly 10 is in the unfolded state, the display area of ​​the flexible display screen 20's display interface 20a is larger, improving the user experience of the electronic device 100, and the entire electronic device 100 has a larger overall size at this time. When the shell assembly 10 is in the folded state, the display area of ​​the flexible display screen 20's display interface 20a is smaller, and the entire electronic device 100 has a relatively smaller overall size for portability.

[0036] In this embodiment of the application, the shell assembly 10 includes a first shell 12 and a second shell 14, the first shell 12 and the second shell 14 being aligned in a predetermined direction (e.g., Figure 1 and Figure 2The relative movement (in the first direction) causes the shell assembly 10 to switch between a retracted state and an extended state. Specifically, at least a portion of the structure of the flexible display screen 20 extends from or retracts from the shell assembly 10 with the relative movement of the first shell 12 and the second shell 14, thereby changing the display area of ​​the electronic device 100. More precisely, when the flexible display screen 20 extends from the shell assembly 10, the display area of ​​the display interface 20a increases; correspondingly, when the flexible display screen 20 retracts from the shell assembly 10, the display area of ​​the display interface 20a decreases.

[0037] Combination Figures 1 to 3 As shown in the embodiment of this application, the electronic device 100 includes a sliding component 30, which is used to realize the relative sliding of the first housing 12 and the second housing 14.

[0038] Specifically, in combination Figure 4 As shown, the sliding assembly 30 includes a guide rail 31, a base 32, and a plurality of rigid balls 33. The guide rail 31 has a guide groove 31a, and the base 32 has a circulation channel 32a. The plurality of rigid balls 33 are arranged along the guide groove 31a and the circulation channel 32a. When the base 32 moves along the guide rail 31, at least some of the plurality of rigid balls 33 enter or exit the guide groove 31a through the circulation channel 32a. In this way, the rolling of the rigid balls 33 can be used to reduce the friction between the base 32 and the guide rail 31. Understandably, when the base 32 moves continuously in one direction along the guide rail 31, the plurality of rigid balls 33 will circulate and roll along the guide groove 31a and the circulation channel 32a.

[0039] The base 32 and the guide rail 31 are elastically matched to absorb the deflection displacement when the base 32 moves along the guide rail 31, thereby maintaining smooth sliding between the base 32 and the guide rail 31, reducing motion resistance and reducing the occurrence of jamming.

[0040] In some embodiments, the first housing 12 is connected to the guide rail 31 in the sliding assembly 30, and the second housing 14 is connected to the base 32 of the sliding assembly 30. The guide rail 31 is arranged in a predetermined direction, and the relative movement of the first housing 12 and the second housing 14 is satisfied by the cooperation between the base 32 and the guide rail 31. Understandably, when the first housing 12 and the second housing 14 move relative to each other, the base 32 moves along the guide rail 31. At this time, the rigid ball bearings 33 between the base 32 and the guide rail 31 achieve a sliding effect by rolling, thereby enabling the first housing 12 and the second housing 14 to move smoothly relative to each other.

[0041] The elastic fit between the base 32 and the guide rail 31 can be in various ways, specifically it can be an indirect elastic fit or a direct elastic fit.

[0042] For example, combined Figure 5As shown, the sliding assembly 30 includes a floating seat 34 and an elastic body 35. The floating seat 34 is disposed between the guide rail 31 and the base 32, and the elastic body 35 is disposed between the floating seat 34 and the base 32. This arrangement allows the elastic body 35 to allow elastic floating between the floating seat 34 and the base 32. Specifically, the base 32 can move relative to the floating seat 34 under the action of the elastic body 35, and the elastic body 35 deforms during the movement of the base 32 relative to the floating seat 34. Therefore, when the base 32 is subjected to a deflection force perpendicular to the guide rail 31, the base 32 can deflect relative to the guide rail 31. After the deflection force disappears, the elastic body 35 will recover its deformation, causing the base 32 to return to its original position, thus achieving the effect of elastic floating of the base 32 relative to the guide rail 31, i.e., realizing the elastic fit between the base 32 and the guide rail 31.

[0043] In some implementations, combined Figure 7 As shown, the sliding component 30 includes elastic balls 36. Multiple elastic balls 36 are disposed within the guide groove 31a and the circulation channel 32a. When the base 32 moves along the guide rail 31, at least one elastic ball 36 is always present in the guide groove 31a. In this embodiment, the elastic balls 36 possess the characteristic of deformation, so that when the base 32 deflects relative to the guide rail 31, the elastic balls 36 elastically abut against the guide rail 31, thereby achieving an elastic fit between the base 32 and the guide rail 31.

[0044] Furthermore, the diameter of the elastic ball 36 is larger than that of the rigid ball 33, so that the elastic ball 36 with a larger diameter than the rigid ball 33 can better exert the elastic effect, so that the base 32 can float elastically relative to the guide rail 31 within a certain deflection range and maintain a stable fit with the guide rail 31, ensuring the stability of the base 32 moving along the guide rail 31.

[0045] Understandably, in embodiments where the sliding component 30 includes a floating seat 34 and an elastic body 35, elastic balls 36 can also be provided in the guide groove 31a and the circulation channel 32a, thereby utilizing the elastic body 35 and the elastic balls 36 to achieve multiple elastic buffering effects and further improve the offset reset performance of the base 32 relative to the guide rail 31.

[0046] It should be noted that in the embodiment where the sliding component 30 includes the floating seat 34, the elastic ball 36 located in the guide groove 31a can elastically contact the side of the floating seat 34 facing the guide rail 31, thereby playing an elastic buffering effect between the guide rail 31 and the floating seat 34.

[0047] In the embodiment where the base 32 and the guide rail 31 are slidably engaged by rigid balls 33, the elastic balls 36 located in the guide groove 31a can elastically contact the side of the base 32 facing the guide rail 31, thereby providing an elastic buffering effect between the guide rail 31 and the base 32. In this embodiment, as... Figure 7 As shown, the base 32 includes a connecting body 321 and stop blocks 322 detachably connected to both ends of the connecting body 321. A circulation channel 32a is provided in the connecting body 321, and the stop blocks 322 are connected to the connecting body 321. The stop blocks 322 have arc-shaped grooves 322a, which are used to guide the rigid balls 33 to roll between the circulation channel 32a and the guide groove 31a. It is understood that it is difficult to directly machine the arc-shaped grooves 322a and the circulation channel 32a on the complete base 32. By dividing the base 32 into a detachable connecting body 321 and stop blocks 322, it is easier to machine the circulation channel 32a and the arc-shaped grooves 322a separately, and it is also easier to assemble the rigid balls 33. In some embodiments, after the rigid balls 33 are loaded into the circulation channel 32a and the guide groove 31a, the stop blocks 322 are connected to the connecting body 321, so that the rigid balls 33 are not easily detached from the base 32 and the guide rail 31. The stop block 322 and the connecting body 321 can be connected by screws, snap-fit ​​connections, or welding. The connection method between the two is not limited here.

[0048] The structure of the sliding component 30 will be further explained below in conjunction with the settings of the "floating seat 34" and the "elastic ball 36".

[0049] Combination Figure 5 As shown, the floating seat 34 has a receiving groove 34a and a groove 34b formed on the sidewall of the receiving groove 34a. At least a portion of the guide rail 31 is located within the receiving groove 34a. The groove 34b and the guide groove 31a together define a ball channel, and the two ends of the ball channel are respectively connected to the two ends of the circulation channel 32a. In this embodiment, the ball channel and the circulation channel 32a form a closed loop so that the rigid balls 33 circulate. Specifically, when the base 32 moves along the guide rail 31, a plurality of rigid balls 33 roll along the circulation channel 32a and the ball channel. With this arrangement, the plurality of rigid balls 33 achieve relative movement between the floating seat 34 and the guide rail 31 by rolling. Compared with the contact sliding of the floating seat 34 and the guide rail 31, this structure of the embodiment has less friction, thereby allowing the sliding assembly 30 to satisfy the smooth movement between the first housing 12 and the second housing 14.

[0050] Furthermore, the base 32 has a mounting groove 32b, the width W1 of the groove opening 32c of the mounting groove 32b is smaller than the width W2 of the groove bottom 32d of the mounting groove 32b. The floating seat 34 includes a main body portion 341 and a limiting portion 342 connected to each other, at least a portion of the main body portion 341 is located within the groove opening 32c. The limiting portion 342 is opposite to the groove bottom 32d of the mounting groove 32b, and the width W3 of the limiting portion 342 is greater than the width W1 of the groove opening 32c, so that the limiting portion 342 will not be removed from the groove opening 32c, and the floating seat 34 has good stability with the base 32.

[0051] Regarding the placement of the elastic body 35, it is sufficient to accommodate the elastic connection between the base 32 and the floating seat 34. Exemplarily, in some embodiments, the elastic body 35 is provided on both the side of the limiting portion 342 facing the slot 32c and the side of the limiting portion 342 facing the slot bottom 32d. Specifically, the elastic body 35 is disposed between the side of the limiting portion 342 facing the slot 32c and the base 32, and also between the side of the limiting portion 342 facing the slot bottom 32d and the base 32. In some embodiments, the elastic body 35 is disposed between the sidewall of the slot 32c and the base 32.

[0052] The elastomer 35 can be a spring or a rubber pad. The type of elastomer 35 is not limited here, as long as the elastomer 35 can be deformed by compression and recover its deformation after the compression force is removed.

[0053] Combination Figure 6 As shown, in an embodiment where the sliding assembly 30 includes a floating seat 34, the sliding assembly 30 includes a conduit 37. The two ends of the conduit 37 are connected to the floating seat 34 and the base 32, respectively. The conduit 37 connects the circulation channel 32a and the guide groove 31a, thereby guiding the rigid ball 33 from the circulation channel 32a into the guide groove 31a, and guiding the rigid ball 33 from the guide groove 31a into the circulation channel 32a. In this embodiment, the conduit 37 can meet the need for guiding the rigid ball 33 without hindering the elastic floating of the base 32 relative to the floating seat 34. Specifically, the conduit 37 can be made of flexible metal materials such as carbon steel, cast steel, galvanized steel, or stainless steel, or non-metallic flexible materials such as polyvinyl chloride or silicone; no limitation is made here.

[0054] It should be noted that there is a gap between the end of the conduit 37 near the floating seat 34 and the guide rail 31. When the base 32 floats elastically relative to the floating seat 34, the gap between the conduit 37 and the guide rail 31 provides appropriate clearance space for the conduit 37, thereby reducing the probability of the conduit 37 contacting the guide rail 31 when it moves with the base 32 and reducing the friction when the conduit 37 contacts the guide rail 31. This makes the movement of the base 32 relative to the guide rail 31 less affected by the conduit 37, so as to maintain the smooth movement of the base 32 along the guide rail 31.

[0055] Combination Figures 7 to 9 As shown, in the embodiment where the sliding component 30 includes elastic balls 36, multiple elastic balls 36 and multiple rigid balls 33 are arranged alternately. Thus, during the rolling process of the multiple elastic balls 36 and multiple rigid balls 33, adjacent rigid balls 33 can be buffered by the elastic balls 36, avoiding collisions between the rigid balls 33, thereby further improving the working stability of the sliding component 30.

[0056] It should be noted that because the elastic ball 36 has a certain deformation capacity, when the guide rail 31 swings at a small angle relative to the base 32, the guide rail 31 will deflect and press on the elastic ball 36, causing the elastic ball 36 to undergo elastic deformation.

[0057] For ease of understanding, the deflection of the guide rail 31 will be explained with reference to the base 32.

[0058] In the guide rail 31 assembly of this application, the guide rail 31 can deflect clockwise or counterclockwise relative to the base 32. Thus, the range of deflection can be determined when the guide rail 31 deflects to its two extreme positions relative to the base 32.

[0059] like Figure 8 As shown, when the guide rail 31 deflects clockwise to a certain angle and contacts the rigid ball 33, the deflection angle of the guide rail 31 in the clockwise direction reaches its limit. Figure 9 As shown, when the guide rail 31 deflects counterclockwise to a certain angle and contacts the rigid ball 33, the deflection angle of the guide rail 31 in the counterclockwise direction reaches its limit.

[0060] When the guide rail 31 rotates to its limit position relative to the base 32, it will be restricted by the rigid ball 33 and cannot continue to deflect. Correspondingly, the elastic deformation of the elastic ball 36 also reaches the upper limit of the corresponding limit position. Therefore, when designing the sliding component 30, it is only necessary to ensure that the deflection angle required for the function is within the upper limit of the designed deflection angle, and at the same time, the deformation of the elastic ball 36 under this limit deflection is within the upper limit of the individual elastic deformation of the elastic ball 36.

[0061] It should be noted that, based on the elastic fit between the base 32 and the guide rail 31, there is a relative deflection margin between them. Within this deflection margin range, the base 32 can maintain its sliding performance along the guide rail 31, and will not experience increased friction due to the offset of the base 32 relative to the guide rail 31, thus preventing jamming or sticking.

[0062] Combination Figure 10 As shown, in some embodiments, the center lines of the guide groove 31a and the circulation channel 32a are located on the same plane, and the angle α at which the base 32 and the guide rail 31 can deflect relative to each other in the plane ranges from α ≤ 10°. This setting ensures that the deflection amplitude of the base 32 relative to the guide rail 31 is appropriate, neither too large to affect the sliding effect of the sliding component 30 in the housing component 10, nor too small to have a small effect on reducing motion resistance.

[0063] It should be noted that the power source for the relative movement of the first housing 12 and the second housing 14 can be manual or electric.

[0064] Specifically, when using the manual method, the user only needs to hold the first housing 12 and the second housing 14 and move them away from each other to place the second housing 14 in the unfolded position. Correspondingly, when the first housing 12 is in the unfolded position, if it is necessary to close the electronic device 100, the user only needs to move the first housing 12 and the second housing 14 towards each other.

[0065] In an electrically powered embodiment, the electronic device 100 includes a drive mechanism connected to the housing assembly 10 and used to drive the first housing 12 and the second housing 14 to move relative to each other in a predetermined direction.

[0066] Specifically, the drive mechanism is used to drive the base 32 to move along the guide rail 31. Since the base 32 and the guide rail 31 are respectively connected to the first housing 12 and the second housing 14 to achieve a sliding fit between the first housing 12 and the second housing 14, in this embodiment, when the drive mechanism drives the base 32 to move along the guide rail 31, the first housing 12 and the second housing 14 move relative to each other.

[0067] The drive mechanism includes a drive component, a lead screw, and a nut. The drive component outputs torque and can be a rotary motor or a micro motor. The lead screw is connected to the drive component and rotates under its drive. The nut is threaded onto the lead screw, so that the nut moves along the lead screw when it rotates. It should be noted that the lead screw is parallel to the guide rail 31, and the nut is connected to the base 32. The connection between the nut and the base 32 includes, but is not limited to, welding, snap-fit ​​connection, or heat fusion connection. Thus, when the lead screw moves the nut, the nut will move the base 32 along the guide rail 31.

[0068] It should be noted that the drive mechanism is not limited to the structure described above. In some embodiments, the drive mechanism can be a belt drive structure. For example, the drive mechanism includes a drive wheel, a transmission belt, and a driven wheel, both of which cooperate with the transmission belt. When the drive wheel rotates, it drives the driven wheel to rotate via the transmission belt. In this embodiment, the transmission belt is connected to the base 32, and when the drive wheel rotates, the transmission belt drives the base 32 to move along the guide rail 31.

[0069] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A sliding component, characterized in that, include: The guide rail has guide grooves; A base having a circulation channel, the base elastically engaging with the guide rail, such that when the base is subjected to a deflection force perpendicular to the guide rail, the base can deflect relative to the guide rail to absorb the deflection displacement when the base moves along the guide rail; and Multiple rigid balls are arranged along the guide groove and the circulation channel. When the base moves along the guide rail, at least some of the multiple rigid balls enter or exit the guide groove through the circulation channel. The rigid balls are used to reduce the friction between the base and the guide rail by rolling.

2. The sliding component according to claim 1, characterized in that, It also includes a floating seat and an elastic body, wherein the floating seat is disposed between the guide rail and the base, and the elastic body is disposed between the floating seat and the base.

3. The sliding component according to claim 2, characterized in that, The floating seat has a receiving groove and a groove formed on the side wall of the receiving groove. At least a portion of the guide rail is located in the receiving groove. The groove and the guide groove together define a ball channel. The two ends of the ball channel are respectively connected to the two ends of the circulation channel. When the base moves along the guide rail, a plurality of rigid balls roll along the circulation channel and the ball channel.

4. The sliding component according to claim 2 or 3, characterized in that, The base has a mounting groove, the width of the groove opening is smaller than the width of the groove bottom, the floating seat includes a main body and a limiting part connected to each other, at least a portion of the main body is located in the groove, the limiting part is opposite to the groove bottom, and the width of the limiting part is greater than the width of the groove opening.

5. The sliding component according to claim 4, characterized in that, The elastic body is disposed between the side of the limiting portion facing the groove and the base, and between the side of the limiting portion facing the bottom of the groove and the base.

6. The sliding component according to claim 4, characterized in that, The elastomer is disposed between the sidewall of the groove and the main body.

7. The sliding component according to claim 2 or 3, characterized in that, It also includes a conduit, the two ends of which are connected to the floating seat and the base, respectively, and the conduit is used to connect the circulation channel and the guide groove.

8. The sliding component according to claim 1 or 2, characterized in that, It also includes multiple elastic balls, which are disposed in the guide groove and the circulation channel. When the base moves along the guide rail, there is always at least one elastic ball in the guide groove.

9. The sliding component according to claim 8, characterized in that, The plurality of rigid balls have the same diameter as each other, and the elastic balls have a larger diameter than the rigid balls.

10. The sliding component according to claim 8, characterized in that, The plurality of elastic balls and the plurality of rigid balls are arranged alternately.

11. The sliding component according to claim 8, characterized in that, The centerline of the guide groove and the centerline of the circulation channel are located in the same plane, and the angle α that the base and the guide rail can deflect relative to each other in the plane is in the range of α≤10°.

12. An electronic device, characterized in that, The system includes a shell assembly and a sliding assembly as described in any one of claims 1-11, the shell assembly comprising a first shell and a second shell movable relative to the first shell, the first shell being connected to a guide rail in the sliding assembly, and the second shell being connected to a base in the sliding assembly; when the first shell and the second shell move relative to each other, the base moves along the guide rail.

13. The electronic device according to claim 12, characterized in that, The device includes a flexible display screen connected to a first housing and a second housing. At least a portion of the flexible display screen extends from or retracts from the housing assembly as the first housing and the second housing move relative to each other, thereby changing the display area of ​​the electronic device.

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