CN113489817A

CN113489817A - Electronic device and driving assembly

Info

Publication number: CN113489817A
Application number: CN202110859077.4A
Authority: CN
Inventors: 李柏润
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2021-10-08

Abstract

The application provides an electronic device and a driving assembly; wherein the drive assembly comprises: the device comprises a driving motor, a gearbox, a first transmission screw rod and a second transmission screw rod; the gearbox is in transmission connection with an output shaft of the driving motor; the first transmission screw rod and the second transmission screw rod are respectively connected with the gearbox and can rotate in opposite directions under the driving of the gearbox. The drive assembly that this application embodiment provided, through setting up two transmission lead screws, a clockwise rotation, an anticlockwise rotation, two revolve to simultaneous movement under the drive of gearbox, can connect different waiting to drive the structure module through nut (connecting block) on the lead screw, reach the purpose that two structure modules realized reverse associative motion. The driving assembly can simplify a movement mechanism to a great extent, and is simpler to assemble, higher in movement precision and better in movement stability.

Description

Electronic device and driving assembly

Technical Field

The invention relates to the technical field of electronic equipment driving structures, in particular to electronic equipment and a driving assembly.

Background

At present, most of motor modules used for driving the interior of electronic equipment (such as a camera lifting module) on the market are of single-screw rod structures, and can drive related structures to reciprocate by means of screw rod nuts, and if relevant motion is needed, a set of relevant mechanisms needs to be additionally designed to realize the motion. A single lead screw only can drive an object reciprocating motion, if need accomplish two movements of thinking the relevance, then need single lead screw module + one set of solitary structure in addition, like this, make complete machine structure precision easily, it is higher to make the precision requirement, and the motion precision degree is not enough, and the structure is complicated, and the equipment degree of difficulty is big.

Disclosure of Invention

A first aspect of embodiments of the present application provides a drive assembly, including:

a drive motor;

the gearbox is in transmission connection with an output shaft of the driving motor;

the first transmission lead screw and the second transmission lead screw; the first transmission screw rod and the second transmission screw rod are respectively connected with the gearbox and can rotate in opposite directions under the driving of the gearbox.

In a second aspect, an embodiment of the present application provides an electronic device, which includes a main housing, a movable support, a flexible display screen, and the driving assembly described in any of the above embodiments; a first transmission screw rod of the driving assembly is connected with the movable support through a first transmission block, one end of the flexible display screen is connected with the movable support, and the other end of the flexible display screen is connected with the second transmission screw rod through a second transmission block; the movable bracket can slide relative to the main shell under the drive of the first transmission block; the flexible display screen can be switched between an unfolding state and a folding state under the driving of the first transmission block and the second transmission block.

The drive assembly that this application embodiment provided, through setting up two transmission lead screws, a clockwise rotation, an anticlockwise rotation, two revolve to simultaneous movement under the drive of gearbox, can connect different waiting to drive the structure module through nut (connecting block) on the lead screw, reach the purpose that two structure modules realized reverse associative motion. The driving assembly can simplify a movement mechanism to a great extent, and is simpler to assemble, higher in movement precision and better in movement stability.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of an overall structure of an embodiment of a driving assembly for an electronic device according to the present application;

FIG. 2 is a schematic diagram of a disassembled structure of a driving assembly in the embodiment of FIG. 1;

FIG. 3 is a schematic diagram of a portion of the drive assembly of the embodiment of FIG. 2;

FIG. 4 is a schematic cross-sectional view of the drive assembly at A-A in the embodiment of FIG. 1;

FIG. 5 is a schematic structural diagram of a first transmission block in the present embodiment;

FIG. 6 is a schematic structural diagram illustrating a retracted state of a display screen of an embodiment of an electronic device according to the present application;

FIG. 7 is a schematic structural diagram illustrating a display screen of the electronic device in an unfolded state in the embodiment of FIG. 6;

FIG. 8 is a schematic diagram of a split structure of the electronic device in the embodiment of FIG. 6;

FIG. 9 is a schematic cross-sectional view of the electronic device in the embodiment of FIG. 6;

FIG. 10 is a cross-sectional view of the electronic device of the embodiment of FIG. 7;

FIG. 11 is a perspective view of a back portion of the electronic device in the embodiment of FIG. 7;

FIG. 12 is a schematic diagram of the electronic device in FIG. 7 with a partially disassembled structure;

fig. 13 is a block diagram illustrating a structural composition of an embodiment of an electronic device according to the present application.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be noted that the following examples are only illustrative of the present invention, and do not limit the scope of the present invention. Likewise, the following examples are only some but not all examples of the present invention, and all other examples obtained by those skilled in the art without any inventive step are within the scope of the present invention.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

As used herein, an "electronic device" (or simply "terminal") includes, but is not limited to, an apparatus that is configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A cellular phone is an electronic device equipped with a cellular communication module.

Referring to fig. 1 and fig. 2 together, fig. 1 is a schematic overall structure diagram of an embodiment of a driving assembly for an electronic device according to the present application, and fig. 2 is a schematic exploded structure diagram of the driving assembly in the embodiment of fig. 1; it should be noted that the electronic device in this application may include an electronic device such as a mobile phone, a tablet computer, a notebook computer, and a wearable device, and the driving component may be used to drive the flexible display screen of the electronic device to open and retract, and may be used to lift the camera. The driving assembly 100 for an electronic device includes, but is not limited to, the following structures: a drive motor 110, a gearbox 120, a first drive screw 130, and a second drive screw 140. It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the embodiments of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or may alternatively include other steps or elements inherent to such process, method, article, or apparatus.

Specifically, the gearbox 120 is in transmission connection with an output shaft of the driving motor 110. The first driving screw 130 and the second driving screw 140 are respectively connected to the gearbox 120, and the first driving screw 130 and the second driving screw 140 can rotate in opposite directions under the driving of the gearbox 120. Referring to fig. 3, fig. 3 is a partial structural schematic diagram of the driving element in the embodiment of fig. 2. In the present embodiment, a structure of a transmission case is given, and the transmission case 120 includes a housing 121, a transmission gear 122, a first meshing gear 123, and a second meshing gear 124; the transmission gear 122 is in meshing transmission with an output shaft of the driving motor 110; the number of the transmission gears 122 may be one or more, and the functions of speed reduction and transmission are achieved.

Optionally, the first engaging gear 123 is connected to the first driving screw 130, and specifically, the first engaging gear 123 may be fixed to one end of the first driving screw 130 and configured to drive the first driving screw 130 to rotate along a first direction. The first meshing gear 123 is in meshing transmission with the transmission gear 122; the second engaging gear 124 is connected to the second driving screw 140, and specifically, the second engaging gear 124 may be fixed to one end of the second driving screw 140 and used for driving the second driving screw 140 to rotate along the second direction. The second meshing gear 124 is in meshing transmission with the first meshing gear 123. The first rotation direction of the first lead screw 130 is opposite to the second rotation direction of the second lead screw 140, and may be clockwise rotation of the first lead screw 130, while the second rotation direction of the second lead screw 140 is counterclockwise rotation, or vice versa. With continued reference to fig. 1 and 2, the driving assembly 100 of the present embodiment may further optionally include a bracket 190, wherein the bracket 190 is configured to be in supporting connection with the gearbox 120, the first lead screw 130 and the second lead screw 140.

Of course, the present embodiment only shows one structure of the gearbox, and in some other embodiments, the gearbox may also be of other structures as long as it can be ensured that the first driving lead screw 130 and the second driving lead screw 140 can be driven to rotate in opposite directions at the same time. It is within the understanding of those skilled in the art that other configurations of gearboxes are not listed and described in detail herein.

Optionally, referring to fig. 1, fig. 2 and fig. 4 together, fig. 4 is a schematic cross-sectional view of the driving assembly at a-a in the embodiment of fig. 1; the first drive screw 130 and the second drive screw 140 in this embodiment are disposed in parallel and adjacent to each other. Nuts or other structures with threads may be disposed on the first driving screw 130 and the second driving screw 140, so as to drive the nuts or other structures with threads to move along the first driving screw 130 and the second driving screw 140 in opposite directions.

With reference to fig. 2, optionally, the driving assembly 100 of the present embodiment may further include a first transmission block 150 and a second transmission block 160; referring to fig. 5, fig. 5 is a schematic structural diagram of a first transmission block in the present embodiment, the first transmission block 150 is provided with a first threaded hole 151, sleeved on the first transmission screw 130, and in transmission fit with the first transmission screw 130, and the first transmission block 150 can reciprocate along an axial direction (i.e., an arrow direction in fig. 2) of the first transmission screw 130 under the driving of the first transmission screw 130; similarly, the second transmission block 160 is provided with a second threaded hole (not shown in the drawings, wherein the second transmission block 160 may have a structure similar to that of the first transmission block 150), and is sleeved on the second transmission screw 140 to be in transmission fit with the second transmission screw 140, the second transmission block 160 is driven by the second transmission screw 140 to reciprocate along the axial direction of the second transmission screw 140 (i.e., the direction of the arrow in fig. 2), and the moving directions of the first transmission block 150 and the second transmission block 160 are opposite. That is, the first driving block 150 and the second driving block 160 move in opposite directions at the same time. For example, in fig. 2, when the first transmission block 150 moves toward the right side, the second transmission block 160 moves toward the left side at the same time; and when the first driving block 150 moves toward the left side, the second driving block 160 moves toward the right side at the same time. It should be noted that the terms "first", "second" and "third" in the embodiments of the present application 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 defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Optionally, with continued reference to fig. 2 and 4, the driving assembly 100 further includes a first guiding rod 170 and a second guiding rod 180; the first guide bar 170 is disposed adjacent to and parallel to the first driving screw 130. Referring to fig. 5, the first transmission block 150 further has a first guide hole 152, and is sleeved on the first guide rod 170; that is, the first guide bar 170 is inserted into the first guide hole 152 of the first transmission block 150, and the first guide bar 170 serves to guide the first transmission block 150 and prevent it from rotating around the first transmission screw 130. The second guide rod 180 is adjacent to and parallel to the second driving screw 140, and the second driving block 160 has a second guide hole and is sleeved on the second guide rod 180. That is, the second guide rod 180 is inserted into the second guide hole of the second transmission block 160, and the second guide rod 180 serves to guide the second transmission block 160 and prevent the second transmission block from rotating around the second transmission screw 140. With reference to fig. 5, in addition, the first transmission block 150 may further have a connection protrusion 153, and the connection protrusion 153 is used for connecting an external component to be driven.

Further, an electronic device is provided in an embodiment of the present application, please refer to fig. 6 to 8 together, and fig. 6 is a schematic structural diagram of a display screen in a retracted state according to an embodiment of the electronic device of the present application;

FIG. 7 is a schematic structural diagram illustrating a display screen of the electronic device in an unfolded state in the embodiment of FIG. 6; fig. 8 is a schematic diagram of a split structure of the electronic device in the embodiment of fig. 6. The electronic device 10 in this embodiment includes a main housing 200, a moving bracket 300, a flexible display 400, and a driving assembly 100.

Specifically, please refer to fig. 9 and 10 together, in which fig. 9 is a schematic cross-sectional structure diagram of the electronic device state in the embodiment of fig. 6, and fig. 10 is a schematic cross-sectional structure diagram of the electronic device state in the embodiment of fig. 7. Optionally, the first transmission screw 130 of the driving assembly 100 is connected to the moving bracket 300 through a first transmission block 150, one end of the flexible display screen 400 is connected to the moving bracket 300, and the other end is connected to the second transmission screw 140 through a second transmission block 160; the movable bracket 300 can slide relative to the main housing 200 under the driving of the first transmission block 150; the flexible display 400 can be switched between an extended state (the state in fig. 7) and a retracted state (the state in fig. 6) by the first transmission block 150 and the second transmission block 160. The first transmission block 150 and the second transmission block 160 can be driven by the first transmission lead screw 130 and the second transmission lead screw 140 to move in opposite directions, so as to expand and retract the flexible display 400.

Optionally, please continue to refer to fig. 8, 10 and 11, fig. 11 is a perspective view illustrating a back partial structure of the electronic device in the embodiment of fig. 7; the electronic device further comprises a connecting plate 500, the connecting plate 500 is connected with the flexible display screen 400, and the second transmission block 160 is connected with the connecting plate 500. The connecting plate 500 may be connected to the second transmission block 160 at a middle position, that is, the driving assembly 100 is located at the middle of the connecting plate 500. Optionally, the electronic device further includes a connection band 600, one end of the connection band 600 is connected to the flexible display 400, the other end of the connection band bypasses the roller 700 and is connected to the connection plate 500, and the roller 700 is rotatably connected to the main housing 200. The number of the connecting bands 600 and the number of the rollers 700 may be two or more, two are taken as an example in this embodiment for illustration, the two connecting bands 600 and the two rollers 700 may be respectively located at two ends of the connecting plate 500, and the middle position of the connecting plate 500 may be connected to the second transmission block 160 of the driving assembly 100, so as to ensure that an even pulling force is generated on the flexible display screen 400.

Optionally, with continued reference to fig. 8, 9, and 10, the electronic device further includes a roller 800, the flexible display 400 is in sliding contact with the roller 800 and surrounds the roller 800, two ends of the flexible display 400 respectively connected to the moving bracket 300 and the second transmission block 160 are located on the same side of the roller 800, that is, on the inner side of the electronic device 10, and the roller 800 may be located at an edge of the main housing 200 of the electronic device.

Optionally, referring to fig. 12 together, fig. 12 is a schematic diagram illustrating a partial structure of the electronic device in the embodiment of fig. 7 in a disassembled manner, wherein a sliding contact surface of the main housing 200 and the moving bracket 300 is a supporting surface 203 of the flexible display 400 in an unfolded state, and the supporting surface 203 is formed by the main housing 200 and the moving bracket 300 together through a strip-shaped embedded structure. This configuration may allow the flexible display 400 to achieve a stable, relatively flat support surface 203 configuration. The flexible display 400 is reliably supported when a user operates to touch the flexible display.

Optionally, with reference to fig. 8, the electronic device in the embodiment of the present application may further include a camera module 901, a control circuit board 902, a battery 903, and the like. The camera module 901, the control circuit board 902, the battery 903 and the driving component 100 may be disposed in the main housing 200, and the camera module 901, the battery 903 and the driving component 100 are respectively connected to the control circuit board 902. The detailed structural features relating to this part of the structure are within the understanding of those skilled in the art and will not be described here again. It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present application are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Referring to fig. 13, fig. 13 is a block diagram illustrating a structural composition of an embodiment of an electronic device according to the present application, where the electronic device may be a mobile phone, a tablet computer, a notebook computer, a wearable device, and the like, and the embodiment illustrates a mobile phone as an example. The structure of the electronic device 10 may include an RF circuit 910, a memory 920, an input unit 930, a display unit 940 (i.e., the flexible display 400 in the above-described embodiment), a sensor 950, an audio circuit 960, a wifi module 970, a processor 980 (which may be the control circuit board 902 in the above-described embodiment), a power supply 990 (which may be the battery 903 in the above-described embodiment), and the like. Wherein the RF circuit 910, the memory 920, the input unit 930, the display unit 940, the sensor 950, the audio circuit 960, and the wifi module 970 are respectively connected with the processor 980; power supply 990 is operable to provide power to the entire electronic device 10.

Specifically, the RF circuit 910 is used for transmitting and receiving signals; the memory 920 is used for storing data instruction information; the input unit 930 is used for inputting information, and may specifically include a touch panel 931 and other input devices 932 such as operation keys; the display unit 940 may include a display panel 941; the sensor 950 includes an infrared sensor, a laser sensor, etc. for detecting a user approach signal, a distance signal, etc.; a speaker 961 and a microphone 962 are connected to the processor 980 through the audio circuit 960 for emitting and receiving sound signals; the wifi module 970 is used for receiving and transmitting wifi signals, and the processor 980 is used for processing data information of the electronic device. For specific structural features of the electronic device, please refer to the related description of the above embodiments, and detailed descriptions thereof will not be provided herein.

In the electronic device in this embodiment, the driving assembly of the electronic device is provided with two transmission screw rods, one of the transmission screw rods rotates clockwise, the other of the transmission screw rods rotates anticlockwise, the two rotation directions move simultaneously under the driving of the gearbox, and the two different structural modules to be driven can be connected through nuts (connecting blocks) on the screw rods, so that the purpose of realizing reverse associated motion of the two structural modules is achieved. The driving assembly can simplify a movement mechanism to a great extent, and is simpler to assemble, higher in movement precision and better in movement stability. The telescopic display screen structure uniquely designed by the electronic equipment can enable a user to experience the electronic equipment with better screen size change. Meanwhile, the whole machine is lighter and thinner due to the fact that the driving structure is simplified, and the product quality is further improved.

The above description is only a part of the embodiments of the present invention, and not intended to limit the scope of the present invention, and all equivalent devices or equivalent processes performed by the present invention through the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A drive assembly, comprising:

a drive motor;

2. The drive assembly of claim 1, wherein the first drive screw and the second drive screw are arranged in parallel.

3. The drive assembly of claim 2, further comprising a first drive block and a second drive block; the first transmission block is provided with a first threaded hole, sleeved on the first transmission screw rod and in transmission fit with the first transmission screw rod, and can reciprocate along the axial direction of the first transmission screw rod under the drive of the first transmission screw rod; the second transmission block is provided with a second threaded hole, is sleeved on the second transmission screw rod and is in transmission fit with the second transmission screw rod, the second transmission block can be driven by the second transmission screw rod to reciprocate along the axis direction of the second transmission screw rod, and the moving directions of the first transmission block and the second transmission block are opposite.

4. The drive assembly of claim 3, further comprising a first guide rod and a second guide rod; the first guide rod and the first transmission screw rod are arranged adjacently and in parallel, and the first transmission block is provided with a first guide hole and sleeved on the first guide rod; the second guide rod and the second transmission lead screw are adjacent and parallel, and the second transmission block is provided with a second guide hole and sleeved on the second guide rod.

5. The drive assembly of claim 1, wherein the gearbox includes a transfer gear, a first meshing gear, and a second meshing gear; the transmission gear is in meshing transmission with an output shaft of the driving motor; the first meshing gear is connected with the first transmission screw rod and is in meshing transmission with the transmission gear; the second meshing gear is connected with the second transmission screw rod and is in meshing transmission with the first meshing gear.

6. An electronic device comprising a main housing, a mobile support, a flexible display, and a drive assembly according to any of claims 1-5; a first transmission screw rod of the driving assembly is connected with the movable support through a first transmission block, one end of the flexible display screen is connected with the movable support, and the other end of the flexible display screen is connected with the second transmission screw rod through a second transmission block; the movable bracket can slide relative to the main shell under the drive of the first transmission block; the flexible display screen can be switched between an unfolding state and a folding state under the driving of the first transmission block and the second transmission block.

7. The electronic device of claim 6, further comprising a connection board connected to the flexible display screen, wherein the second actuator block is connected to the connection board.

8. The electronic device of claim 7, further comprising a connecting band, wherein one end of the connecting band is connected to the flexible display screen, and the other end of the connecting band is connected to the connecting band by bypassing a roller, and the roller is rotatably connected to the main housing.

9. The electronic device of claim 6, further comprising a roller, wherein the flexible display screen is in sliding contact with the roller and surrounds the roller in half, and two ends of the flexible display screen, which are respectively connected to the moving bracket and the second transmission block, are located on the same side of the roller.

10. The electronic device according to claim 6, wherein the sliding contact surface of the main housing and the movable support is a support surface of the flexible display screen in an unfolded state, and the main housing and the movable support together form the support surface through a strip-shaped embedded structure.