CN112164313B - Electronic device - Google Patents

Abstract

An electronic device includes a first folding body, a second folding body, a magnetic induction sensor, and a plurality of magnets. The first folding body is fixedly connected with a rotating shaft, the magnets are uniformly distributed in the circumferential direction of the rotating shaft and fixedly connected with the rotating shaft, the second folding body is rotatably connected with the rotating shaft, and the magnetic induction sensor is arranged on the second folding body. In the process that the second folding body rotates relative to the first folding body, the magnets are sequentially opposite to the magnetic induction sensor, and the magnetic induction sensor determines the rotation angle of the second folding body relative to the first folding body according to the opposite times of the magnets. In the process that electronic equipment is folded or expanded, the pivot drives each magnet and is close to in proper order magnetic induction sensor for magnetic induction sensor produces the sensing signal, and the angle that electronic equipment was folded or was expanded can be calculated to the number of times through the sensing signal of statistics magnetic induction sensor generation.

Description

an electronic device

technical field

The present application relates to the technical field of electronic devices, and in particular, to a foldable electronic device.

Background technique

Foldable electronic devices are one of the most innovative and important directions in the development of smart electronic devices, and the expanded large screen can bring consumers a very good visual experience. Among them, the folding angle of the screen is an important parameter of such electronic devices, and obtaining an accurate folding angle can help the electronic device to realize many refined human-computer interaction functions, and can bring users a refined and good experience.

In the prior art, there is a way to realize angle measurement through the rotation matching between the optical transmitter and the receiver. By judging the position of the light receiver that received the light, the folding angle of the screen can be calculated.

The above-mentioned method of using optical sensors to detect the folding angle of electronic devices also has its disadvantages. The first disadvantage is that the measurement accuracy is not very high. The accuracy of this method directly depends on the number of optical receivers. The second disadvantage is that setting up a large number of optical receivers will increase the production cost.

SUMMARY OF THE INVENTION

The embodiments of the present disclosure provide an electronic device to solve the problems of complex structure, high cost and inaccurate detection of the folding angle of the existing foldable electronic device.

In order to solve the above problems, the present disclosure adopts the following technical solutions:

An embodiment of the present disclosure provides an electronic device, including:

a first folded body, the first folded body is fixedly connected with a rotating shaft;

a plurality of magnets, each of which is evenly distributed around the circumference of the rotating shaft, and is fixedly connected to the rotating shaft;

a second folding body, the second folding body is rotatably connected to the rotating shaft;

a magnetic induction sensor, the magnetic induction sensor is arranged on the second folding body;

During the rotation of the second folded body relative to the first folded body, the plurality of magnets are sequentially aligned with the magnetic induction sensor, and the magnetic induction sensor is determined according to the number of times of alignment with the plurality of magnets The angle at which the second folded body is rotated relative to the first folded body.

The technical solutions adopted in the embodiments of the present disclosure can achieve the following beneficial effects:

The electronic device of the present application is provided with a magnetic induction sensor and a plurality of magnets. During the folding process of the electronic device, the rotating shaft rotates relative to the magnetic induction sensor, so that different magnets are close to the magnetic induction sensor. The magnetized magnetic induction sensor causes the magnetic induction sensor to generate corresponding signals. The device can calculate the folding or unfolding angle of the first folding body and the second folding body according to the number of signals generated by the magnetic induction sensor. Compared with the solution of detecting the folding angle of the electronic device through the optical sensor, the electronic device of the present application has a simple structure, low cost, and high detection accuracy of the folding or unfolding angle.

Description of drawings

The accompanying drawings described herein are used to provide further understanding of the present disclosure and constitute a part of the present disclosure. The exemplary embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the attached image:

1 is a schematic three-dimensional structure diagram of an electronic device provided by an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a magnetic induction sensor on an electronic device provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of the matching structure of a magnetic induction sensor of an electronic device and a magnetic carrier component provided by an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a folding direction detection mechanism in an electronic device provided by an embodiment of the present application.

In the picture:

1. The first folding body; 11. The rotating shaft; 2. The second folding body; 3. Magnetic induction sensor; 31. The first elastic piece; 32. The second elastic piece; 6. The first conductive member; 7. The second conductive member; 8. The second detection circuit; 9. The third detection circuit; 10. The ground terminal; 101, the first ground terminal; 102, the second ground terminal; a limiting part; 30. a second limiting part.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the technical solutions of the present disclosure will be clearly and completely described below with reference to the specific embodiments of the present disclosure and the corresponding drawings. Obviously, the described embodiments are only some, but not all, embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

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

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

1 to 4, the present application provides an electronic device, the electronic device includes a flexible display screen, a first folding body 1 and a second folding body 2, and the first folding body 1 and the second folding body 2 are rotatable Connection, the flexible display screen is partially connected to the first folding body 1 and partially connected to the second folding body 2, and the flexible display screen can be folded or unfolded by rotating the first folding body 1 and the second folding body 2. The electronic device can bring new visual experience to consumers through the expanded large screen.

Specifically, as shown in FIG. 1 , the electronic device further includes a magnetic induction sensor 3 and a plurality of magnets 4 . The first folding body 1 is fixedly connected with a rotating shaft 11, the magnets 4 are evenly distributed around the circumferential direction of the rotating shaft 11, and are fixedly connected with the rotating shaft 11, and the second folding body 2 is rotatably connected to the rotating shaft 11. The rotating shaft 11 and the magnetic induction sensor 3 are arranged on the second folding body 2 . During the rotation of the second folded body 2 relative to the first folded body 1 , the plurality of magnets 4 face the magnetic induction sensor 3 in sequence, and the magnetic induction sensor 3 is aligned with the plurality of magnets. The number of facings of 4 determines the angle of rotation of the second folded body 2 relative to the first folded body 1 .

In this embodiment, during the folding process of the electronic device, the rotating shaft 11 rotates relative to the magnetic induction sensor 3, so that different magnets 4 are positioned opposite to the magnetic induction sensor 3 in sequence, and the magnetic induction sensor 3 is magnetized so that the magnetic induction sensor 3 generates a corresponding induction signal , the magnetic induction sensor can calculate the folding or unfolding angle of the electronic device according to the number of generated induction signals. Compared with the solution of detecting the folding angle of the electronic device through the optical sensor, the electronic device has a simple structure, low cost and high angle detection accuracy.

It should be noted that the term "the magnet 4 is fixedly connected to the rotating shaft 11" in the embodiments of the present application can be understood as the magnet 4 is directly connected to the rotating shaft 11, and can also be understood as the magnet 4 is indirectly connected to the rotating shaft 11 through other components . As long as the rotation of the rotating shaft 11 can drive the magnet 4 to rotate as a whole, it suffices.

For example, each of the magnets 4 can be directly connected to the surface of the rotating shaft 11 around the circumference of the rotating shaft 11 , or can be embedded in the interior of the rotating shaft 11 . The magnet 4 may be a block or a magnetic material layer attached to the surface of the rotating shaft 11 .

Considering the small diameter of the rotating shaft 11 , it is inconvenient to install the magnet 4 , and the rotating shaft 11 is far away from the magnetic induction sensor 3 , which is not conducive to the magnetization of the magnetic induction sensor 3 by the magnet 4 . Referring to FIG. 1 , the electronic device provided by the embodiment of the present application further includes a magnetic carrier component 5 . The magnetic carrier member 5 is disposed coaxially with the rotating shaft 11 and is fixedly connected with the rotating shaft 11 ; the magnets 4 are arranged on the magnetic carrier member 5 at intervals around the circumferential direction of the magnetic carrier member 5 . That is, each magnet 4 is indirectly connected to the rotating shaft 11 through the magnetic carrier member 5 . The diameter of the magnetic carrier part 5 can be larger than the diameter of the rotating shaft 11 , so that the magnet 4 can be close to the magnetic induction sensor 3 . The magnetic carrier part 5 can be connected to the end of the rotating shaft 11 and does not occupy the internal space, thus not affecting the installation of the flexible display screen.

In a possible implementation, the magnetic carrier part 5 is provided with a plurality of protrusions 51 at intervals in the circumferential direction, and each of the magnets 4 is provided on the protrusions 51 .

In this embodiment, in the circumferential direction of the magnetic carrier member 5 , the protrusions 51 are evenly distributed, and the magnets 4 are arranged on the protrusions 51 , closer to the magnetic induction sensor 3 , which is beneficial for magnetizing the magnetic induction sensor 3 . In addition, each protrusion 51 on the magnetic carrier part 5 is the setting position of the magnet 4, which facilitates the arrangement of the magnet 4 on the magnetic carrier part, and is beneficial to improve the production efficiency.

Referring to FIG. 1 , in a possible embodiment, the protrusion 51 is a sharp-angle structure that gradually narrows outward along the radial direction of the magnetic carrier part 5 ; the magnet 4 is arranged on the protrusion 51 . from the pointed end of 51. Optionally, the magnet 4 is a layer of magnetic material disposed on the pointed end of the protrusion 51 .

In this embodiment, the cross-section of the magnetic carrier part 5 is gear-shaped, and each protrusion 51 is a pointed structure. A magnetic material layer is provided on the pointed end of the protrusion 51. The magnetic material layer is small in volume and occupies a small area. There are recesses between the magnetic material layers on adjacent protrusions 51 . The smaller the structure of the magnets 4 is, the less the magnetization interference of each magnet 4 to the magnetic induction component, so that when the protrusion 51 on the magnetic carrier component 5 is facing the magnetic induction sensor 3, the magnetic induction sensor 3 can be magnetized to generate an induction signal. When staggered from the magnetic induction sensor 3, the magnetic induction sensor 3 can be demagnetized to generate another signal, thereby facilitating accurate detection of the folding or unfolding angle of the electronic device.

In addition, the magnetic carrier part 5 may be a cylindrical structure, and the magnets 4 are uniformly distributed in sequence along the circumferential direction of the magnetic induction part. One end of each magnet 4 is connected to the surface of the magnetic carrier member 5 , and the other end extends outward along the radial direction of the magnetic carrier member 5 . This structural design increases the volume of the magnet 4 and enhances the magnetization effect of the magnet 4 on the magnetic induction sensor 3 .

Referring to Fig. 2, in a possible implementation, the magnetic induction sensor 3 includes a first elastic sheet 31 and a second elastic sheet 32 arranged at intervals;

When the magnet 4 and the magnetic induction sensor 3 are facing each other, the first elastic piece 31 is offset in the direction of the magnet, and the first elastic piece 31 and the second elastic piece 32 are in contact with each other. When the magnet 4 is not facing the magnetic induction sensor 3, the first elastic piece 31 and the second elastic piece 32 are separated.

Optionally, the first elastic piece 31 includes a straight section and an inclined section, the inclined section is connected to the straight section, and is inclined to the side away from the magnetic induction sensor 3; the end of the inclined section is A conductive coating is provided. The second elastic piece 32 is arranged between the inclined section and the magnetic induction sensor 3, and a conductive coating is provided on one end of the second elastic piece 32 corresponding to the inclined section. When the first elastic piece 31 is displaced toward the direction of the magnet, the conductive coating of the first elastic piece 31 and the conductive coating of the second elastic piece 32 are in contact and conduct.

The electronic device includes a first detection circuit. The first elastic piece 31 and the second elastic piece 32 are both electrically connected to the first detection circuit. When the first elastic piece 31 and the second elastic piece 32 are in contact, The first detection circuit is turned on, and when the first elastic piece 31 and the second elastic piece 32 are separated, the first detection circuit is turned off. The electronic device further includes a processor, the processor is connected to the first detection circuit, the processor counts when the first detection circuit is turned on, and determines the relative position of the second folding body 2 according to the count value. the rotation angle of the first folding body 1 . Referring to FIG. 2 and FIG. 3 , other structures on the magnetic carrier part 5 except the magnet 4 are made of non-magnetic materials. The electronic device includes a circuit board, and the first detection circuit includes a GND interface, a third resistor and a third GPIO interface arranged on the circuit board. The first elastic piece 31 of the magnetic induction sensor 3 is connected to the GND interface, the second elastic piece 32 of the magnetic induction sensor 3 is connected to the high level (eg 1.8V) on the circuit board through a third resistor, and the connection between the third resistor and the second elastic piece 32 The circuit is connected to the third GPIO interface, and the processor can determine the folding or unfolding angle of the electronic device by judging the high and low level states of the third GPIO interface.

When the magnetic carrier part 5 rotates until a certain magnet 4 is facing the magnetic induction sensor, the two elastic pieces of the magnetic induction sensor 3 are in close contact, and the third GPIO interface is at a low level at this time. When the magnetic carrier part 5 is rotated until the magnet 4 is displaced from the magnetic induction sensor 3, that is, the recess between the two magnets 4 is facing the magnetic induction sensor 3, the two elastic pieces are demagnetized and recovered and separated from each other, and the third GPIO is at a high level at this time. The processor can determine that the magnetic carrier part 5 has rotated once at this time through the high and low levels, so that the angle of folding of the electronic device can be calculated. The corresponding relationship between the number of low levels of the third GPIO interface and the folding or unfolding angle is as follows :

In addition to detecting the rotation angle, the electronic device provided by the embodiment of the present application can also detect the folding direction, that is, it can detect whether the electronic device is in the process of folding and unfolding or in the process of separating and unfolding.

Specifically, as shown in FIG. 4 , the electronic device further includes a folding direction detection mechanism. The folding direction detection mechanism includes a conductive member, a second detection circuit 8, a third detection circuit 9 and a ground terminal. The conductive member is in driving connection with the rotating shaft 11 . During the folding process of the electronic device, the rotating shaft 11 drives the conductive member to move and communicate with the second detection circuit 8 and the ground terminal; during the unfolding process of the electronic device, the rotating shaft 11 drives the The conductive member moves to communicate with the third detection circuit 9 and the ground terminal, the processor is connected to the second detection circuit and the third detection circuit respectively, and the processor is connected to the second detection circuit according to the second detection circuit. and the on-off of the third detection circuit to determine the folding direction of the electronic device.

In a possible implementation, the electronic device includes a shaft sleeve (not shown) sleeved on the rotating shaft; an elastic component (not shown) is arranged between the shaft sleeve and the rotating shaft 11 ; the The conductive part is arranged on the shaft sleeve. During the process of folding or unfolding the electronic device, the conductive member abuts against the ground terminal. At this time, the rotating shaft 11 continues to rotate, and the conductive member does not keep rotating with the rotating shaft 11. , the elastic parts are compressed and further deformed. Wherein the elastic member may be a coil spring. The inner end of the coil spring is connected to the rotating shaft 11, and the outer end of the coil spring is connected to the shaft sleeve. The rotation of the rotating shaft 11 drives the shaft sleeve and the conductive member to rotate through the elastic member.

In a possible embodiment, the conductive member includes a first conductive member 6 and a second conductive member 7 . The first conductive parts 6 and the second conductive parts 7 are alternately arranged, and the ground terminals include first ground terminals 101 and second ground terminals 102 arranged at intervals. During the folding process of the electronic device, the rotating shaft 11 drives the first conductive member 6 to move and communicate with the second detection circuit 8 and the first ground terminal 101 , the second conductive member 7 and the The second ground terminals 102 are separated;

During the unfolding process of the electronic device, the rotating shaft 11 drives the second conductive member 7 to move and communicate with the third detection circuit 9 and the second ground terminal 102, the second detection circuit 8 and the The first ground terminals 101 are separated.

In this embodiment, corresponding grounding terminals are provided corresponding to the first conductive member 6 and the second conductive member 7 respectively, thus reducing the rotation angle of the conductive member for detection and improving the detection speed and detection accuracy.

The second detection circuit 8 is electrically connected to the first GPIO interface of the circuit board. The third detection circuit 9 is electrically connected to the second GPIO interface of the circuit board. The ground terminal is connected to the GND interface of the circuit board.

The second detection circuit 8 includes a first resistor, the first resistor is connected to the high-level terminal (eg 1.8V) of the circuit board, the first resistor is connected to the first conductive member 6 through a circuit, and the first resistor is connected to the first conductive member 6 through a circuit. The circuit between a conductive member 6 and the first resistor is connected to the first GPIO interface of the circuit board. The third detection circuit 9 includes a second resistor, the second resistor is connected to the high-level terminal (eg 1.8V) of the circuit board, the second resistor is connected to the second conductive member 7 through a circuit, and the first resistor The circuit between the two conductive parts 7 and the second resistor is connected to the second GPIO interface of the circuit board.

The first GPIO interface and the second GPIO2 interface are initially at a high level. During the folding process of the electronic device, when the first conductive member 6 contacts the first ground terminal 101 and conducts the second detection circuit 8, the first GPIO interface becomes a low level; when the electronic device is unfolded, the second conductive member 7 The second ground terminal 102 will be contacted, and the second GPIO interface becomes low level at this time. The processor of the electronic device provided by the embodiment of the present application can determine that the electronic device is in a folding process or an unfolding process by analyzing the high and low level states of the first GPIO interface and the second GPIO interface.

To sum up, the electronic device provided by the embodiments of the present application can determine both the folding or unfolding angle of the electronic device and the folding direction of the electronic device, thereby calculating the angle between two folded bodies of the electronic device. The electronic device can calculate the angle between the two folded bodies of the electronic device through the following formula.

The angle between the two folded bodies of the electronic device=(the number of low-level signals of the third GPIO interface during the unfolding process - the number of low-level signals of the third GPIO interface during the folding process)*360/n degrees. where n is the total number of magnets 4 on the magnetic carrier part.

In a possible implementation, the electronic device further includes a limiting portion disposed on the second folded body 2 ; the limiting portion and the ground terminal define a rotation angle of the conductive member.

In this embodiment, during the clockwise or counterclockwise rotation of the conductive member, it can be respectively stopped by the limiting portion and the conductive member to prevent the conductive member from interfering with other structures due to an excessive rotation angle and affecting the detection result.

Specifically, the electronic device includes a first limiting portion 20 and a second limiting portion 30 disposed on the second folding body 2 ; the first limiting portion 20 and the first ground terminal 101 limit the The rotation angle of the first conductive member 6 . The second limiting portion 30 and the second ground terminal 102 limit the rotation angle of the second conductive member 7 .

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

Claims (9)

1. an electronic device, is characterized in that, comprises: a first folded body, the first folded body is fixedly connected with a rotating shaft; a plurality of magnets, each of which is evenly distributed around the circumference of the rotating shaft, and is fixedly connected to the rotating shaft; a second folding body, the second folding body is rotatably connected to the rotating shaft; a magnetic induction sensor, the magnetic induction sensor is arranged on the second folding body; During the rotation of the second folded body relative to the first folded body, the plurality of magnets are sequentially aligned with the magnetic induction sensor, and the magnetic induction sensor is determined according to the number of times of alignment with the plurality of magnets the rotation angle of the second folded body relative to the first folded body; The electronic device includes a magnetic carrier part; the magnetic carrier part is arranged coaxially with the rotating shaft and is fixedly connected with the rotating shaft; on the carrier part; The magnetic carrier part is provided with a plurality of protrusions at intervals in the circumferential direction; each of the magnets is provided on the protrusions. 2. The electronic device according to claim 1, wherein the magnetic induction sensor comprises a first elastic sheet and a second elastic sheet arranged at intervals; When the magnet and the magnetic induction sensor are facing each other, the first elastic piece is offset in the direction of the magnet, and the first elastic piece and the second elastic piece are in contact and conduct; When the magnet is not directly facing the magnetic induction sensor, the first elastic piece and the second elastic piece are separated. 3 . The electronic device according to claim 2 , wherein the first elastic piece comprises a straight section and an inclined section, and the inclined section is connected to the straight section and extends to a direction away from the magnetic induction sensor. 4 . The side is inclined; the end of the inclined section is provided with a conductive coating; The second elastic piece is arranged between the inclined section and the magnetic induction sensor, and one end of the second elastic piece corresponding to the inclined section is provided with a conductive coating; When the first elastic piece is displaced toward the direction of the magnet, the conductive coating of the first elastic piece and the conductive coating of the second elastic piece are in contact and conduct. 4. The electronic device according to claim 3, wherein the electronic device comprises a first detection circuit; Both the first elastic piece and the second elastic piece are electrically connected to the first detection circuit; When the first elastic sheet and the second elastic sheet are in contact, the first detection circuit is turned on, and when the first elastic sheet and the second elastic sheet are separated, the first detection circuit is turned off. 5. The electronic device according to claim 4, characterized in that, the electronic device further comprises a processor, and the processor is connected to the first detection circuit; The processor counts when the first detection circuit is turned on, and determines the rotation angle of the second folded body relative to the first folded body according to the count value. 6 . The electronic device according to claim 1 , wherein the electronic device further comprises a folding direction detection mechanism and a processor, and the folding direction detection mechanism comprises a conductive member, a second detection circuit, a third detection circuit and a processor. 7 . a grounding terminal, the conductive component is drivingly connected with the rotating shaft; During the folding process of the electronic device, the rotating shaft drives the conductive member to move and communicate with the second detection circuit and the ground terminal; during the unfolding process of the electronic device, the rotating shaft drives the conductive member movingly connecting the third detection circuit and the ground terminal; The processor is respectively connected with the second detection circuit and the third detection circuit, and the processor determines the folding direction of the electronic device according to the connection of the second detection circuit and the third detection circuit . 7. The electronic device of claim 6, wherein the conductive member comprises a first conductive member and a second conductive member; the first conductive parts and the second conductive parts are alternately arranged; The ground terminal includes a first ground terminal and a second ground terminal arranged at intervals; During the folding process of the electronic device, the rotating shaft drives the first conductive member to move and communicate with the second detection circuit and the first ground terminal, and the second conductive member and the second ground terminal are connected to each other. separate; During the unfolding process of the electronic device, the rotating shaft drives the second conductive member to move and communicate with the third detection circuit and the second ground terminal, and the second detection circuit is in phase with the first ground terminal. separation. 8. The electronic device according to claim 6, wherein the electronic device comprises a shaft sleeve sleeved on the rotating shaft; An elastic part is arranged between the shaft sleeve and the rotating shaft; the conductive part is connected with the shaft sleeve. 9 . The electronic device according to claim 6 , wherein the electronic device further comprises a limiting portion disposed on the second folded body; the limiting portion and the ground terminal define the conductive portion. 10 . Rotation angle of the part.

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