CN217506446U

CN217506446U - Folding angle detection device and electronic equipment

Info

Publication number: CN217506446U
Application number: CN202221608446.9U
Authority: CN
Inventors: 王德鹏; 刘凯
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-09-27
Anticipated expiration: 2032-06-23

Abstract

The utility model discloses a folding angle detection device and electronic equipment, folding angle detection device include guide rail, slip subassembly way and angle determination subassembly, the circular telegram guide rail of guide rail for having resistance, the guide rail is fixed on electronic equipment's a folded piece, establish slip subassembly's first end slidable on the guide rail, slip subassembly's at least part can electrically conduct, slip subassembly's second end with electronic equipment's pivot or another folded piece link to each other, electronic equipment can drive at folding in-process slip subassembly is followed the guide rail slides, the angle determination subassembly is used for the basis guide rail one end with electronic equipment's turned angle is confirmed to resistance value between slip subassembly's the first end. The utility model discloses folding angle detection device converts the change of electronic equipment angle into the resistance value through guide rail and sliding assembly, and measuring accuracy is high and be difficult to produce and float to zero.

Description

Folding angle detection device and electronic equipment

Technical Field

The utility model relates to a mobile terminal technical field especially relates to a folding angle detection device and electronic equipment.

Background

With the development of screen technology, more and more manufacturers have introduced terminal devices with a foldable screen, such as mobile phones, notebook computers, tablet computers, wearable devices, and the like with a foldable screen. These terminal devices with folding screens can be folded, doubled or tripled.

In the using process of the terminal device with the folding screen, the display state, the control mode and the like of the terminal device are generally required to be controlled according to the folding angle of the terminal device so as to match the use habit of the user, so that the folding angle of the folding screen needs to be detected in real time. In the related art, a mechanical detection structure is usually adopted to detect the folding angle of the folding screen, so that the problems of complex structure and low precision exist.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, an object of the utility model is to provide a simple structure and folding angle detection device that the precision is high.

The utility model discloses still provide an electronic equipment with above-mentioned folding angle detection device.

The folding angle detecting device of the first aspect of the present invention is applied to an electronic device having a folding screen, the electronic equipment at least comprises two folding pieces which are rotatably connected, the folding angle detection device comprises a guide rail, a sliding component and an angle determination component, the guide rail is a current-carrying guide rail with a resistor, the guide rail is fixed on one folding piece of the electronic equipment, a first end of the sliding assembly is slidably disposed on the guide rail, at least a portion of the sliding assembly is electrically conductive, the second end of the sliding component is connected with a rotating shaft or another folding piece connected with the folding screen where the guide rail is positioned, the electronic equipment can drive the sliding assembly to slide along the guide rail in the folding process, and the angle determining assembly is used for determining the rotation angle of the electronic equipment according to the resistance value between one end of the guide rail and the first end of the sliding assembly.

According to the folding angle detection device provided by the embodiment of the utility model, the angle of the electronic equipment is detected through the guide rail and the sliding assembly, the structure is simple, the dependence on structure assembly is not strong, and the assembly process requirement on a production line is not high; the change of the angle of the electronic equipment is converted into the change of the resistance value in the measuring circuit through the guide rail and the sliding assembly, the accuracy is high, and zero drift is not easy to generate.

In some embodiments, the guide rail includes a first guide rail and a second guide rail parallel to each other, the angle determining assembly has a first access end and a second access end, the first access end is connected to the first end of the first guide rail, the second access end is connected to the first end of the second guide rail, and the first end of the first guide rail and the first end of the second guide rail are located at the same end in the length direction of the guide rail.

In some embodiments, the second end of the first rail and the second end of the second rail are each provided with an insulating barrier.

In some embodiments, the sliding assembly includes a sliding member and a conductive member, a first end of the sliding member is slidably disposed on the guide rails, a second end of the sliding member is adapted to be connected to the electronic device, the conductive member is connected to the first end of the sliding member, and two ends of the conductive member respectively abut against the two guide rails.

In some embodiments, the sliding member includes a sliding block, a connecting band, and an elastic member, the sliding block is slidably disposed on the guide rail, one end of the connecting band is connected to the sliding block, and the other end of the connecting band is connected to a rotating shaft of the electronic device or another foldable screen through the elastic member.

In some embodiments, the resistances of the first rail and the second rail are both uniform resistances.

In some embodiments, the angle determining assembly includes a measuring circuit, a processor and a memory, the measuring circuit is connected with the guide rail, the measuring circuit is used for measuring a resistance value between one end of the guide rail and the first end of the sliding assembly, and the processor is used for determining the rotation angle of the electronic device according to the resistance value.

The utility model discloses electronic equipment of second aspect embodiment includes above-mentioned embodiment folding angle detection device, first folder, second folder and rotating member, first folder with the second folder passes through rotating member rotationally links to each other, folding angle detection device establishes first folder or on the second folder, folding angle detection device is used for detecting first folder with turned angle between the second folder.

In some embodiments, the rotating member has a moving portion that is movable in a width direction of the first folding member and/or a width direction of the second folding member with relative rotation of the first folding member and the second folding member, and the moving portion is connected to the folding angle detection device.

In some embodiments, the rotating component is a hinge.

Drawings

Fig. 1 is a schematic view of a folding angle detection device according to an embodiment of the present invention.

Fig. 2 is a schematic view of the folding angle detection apparatus and the electronic device according to the embodiment of the present invention.

Reference numerals: a guide rail 10, a first guide rail 11, a second guide rail 12, an insulating barrier 13,

a sliding assembly 20, a sliding member 21, a conductive member 22, a slider 23, a connecting band 24,

a first folding member 31, a second folding member 32, and a rotating member 33.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The following describes the folding angle detection device according to an embodiment of the present invention with reference to the drawings.

As shown in fig. 1, the folding angle detecting apparatus according to an embodiment of the present invention includes a guide rail 10, a sliding assembly 20, and an angle determining assembly (not shown).

The utility model discloses folding angle detection device mainly is applied to the electronic equipment that has folding screen, electronic equipment includes two rotatable coupling's folded piece at least, for example, the folded piece is the center, the folding screen links to each other and can rotate along with the center, a plurality of folded pieces of electronic equipment rotationally link to each other through the pivot, wherein, guide rail 10 is the circular telegram guide rail that has the resistance value, guide rail 10 fixes and establishes on the guide rail one end slidable of sliding component 20 on a folded piece of electronic equipment, the second end of sliding component 20 links to each other with electronic equipment's pivot or another folded piece, it is required to explain, the pivot that links to each other with sliding component or folding screen are the folding screen adjacent with the folding screen at guide rail 10 place.

At least part of the sliding component 20 can be conductive, and the electronic device can drive the sliding component 20 to slide along the guide rail 10 in the rotating process; an angle determining assembly is connected to the guide rail 10, and the angle determining assembly may determine a rotation angle of the electronic device according to a resistance value between one end of the guide rail and the first end of the sliding assembly.

It should be noted that, when the electronic device rotates, the sliding assembly 20 is driven to slide on the guide rail 10 along the length of the guide rail 10, at this time, the resistance value of the access circuit of the guide rail 10 changes, the angle determining assembly measures the changed resistance value of the access circuit of the guide rail 10, and determines the rotation angle of the electronic device according to the changed resistance value of the access circuit of the guide rail 10.

According to the folding angle detection device provided by the embodiment of the utility model, the angle of the electronic equipment is detected through the guide rail 10 and the sliding component 20, the structure is simple, the dependence on structural assembly is not strong, and the requirement on the assembly process of a production line is not high; the change of the angle of the electronic device is converted into the change of the resistance value through the guide rail 10 and the sliding assembly 20, and the measurement accuracy is high.

As shown in fig. 1, in some embodiments, the track 10 includes a first track 11 and a second track 12 parallel to each other, the angle determining assembly has a first access end and a second access end, the first access end is connected to a first end (right end shown in fig. 1) of the first track 11, the second access end is connected to a first end (right end shown in fig. 1) of the second track 12, and the first end of the first track 11 and the first end of the second track 12 are located at the same end in the length direction of the track 10.

The resistances of the first rail 11 and the second rail 12 are both uniform resistances, in other words, the resistance value of the rail 10 connected to the circuit is positively correlated with the length of the rail 10 connected to the circuit.

As shown in fig. 1, in some embodiments, the second end (left end shown in fig. 1) of the first rail 11 and the second end (left end shown in fig. 1) of the second rail 12 are each provided with an insulating barrier 13. The utility model discloses folding angle detection device has avoided sliding assembly 20 and guide rail 10 to break away from through the second end at first guide rail 11 and second guide rail 12 sets up insulating baffle 13.

As shown in fig. 1, in some embodiments, the sliding assembly 20 includes a sliding member 21 and a conductive member 22, a first end of the sliding member 21 is slidably disposed on the guide rails 10, a second end of the sliding member 21 is adapted to be connected to the electronic device, the conductive member 22 is connected to the sliding member 21, and two ends of the conductive member 22 respectively abut against two guide rails 10.

Further, as shown in fig. 1, the sliding member 21 includes an elastic member, a sliding block 23, and a connecting band 24, the sliding block 23 is slidably disposed on the guide rail 10, the connecting band 24 is a flexible connecting band, one end (left end shown in fig. 1) of the connecting band 24 is connected to the sliding block 23, the other end (right end shown in fig. 1) of the connecting band 24 is connected to the electronic device through the elastic member, the elastic member may be a spring, a rubber band, or the like, and the elastic member plays a role of tensioning the connecting band 24. It should be noted that when the electronic device rotates, the connecting belt 24 is driven to move, and the connecting belt 24 drives the slider 23 and the conductive member 22 to slide along the length direction (the left and right direction shown in fig. 1) of the guide rail 10, so as to change the resistance value of the guide rail 10 accessing the detection circuit.

In some embodiments, the angle determining assembly includes a measuring circuit, a processor and a memory, the measuring circuit is connected with the guide rail, the measuring circuit is used for measuring the resistance value between one end of the guide rail and the first end of the sliding assembly and transmitting the resistance value to the processor, and the processor can process and analyze the resistance value by running a software program or a running module stored in the memory controller to determine the rotation angle of the electronic device.

In some embodiments, the measurement circuit is a wheatstone bridge measurement circuit. It should be noted that the wheatstone bridge is a bridge circuit composed of four resistors, the four resistors are four bridge arms of the bridge respectively, the guide rail 10 is one of the four bridge arms, and the voltage at two ends of the guide rail 10 is collected by the single chip microcomputer and then processed to obtain the required value. The utility model discloses folding angle detection device passes through Wheatstone bridge measuring circuit's setting, and the measuring degree of accuracy is high and be difficult to produce and float.

As shown in fig. 2, the electronic device according to the embodiment of the present invention includes the folding angle detecting device, the first folding member 31, the second folding member 32, and the rotating member 33 of the above embodiment, the first folding member 31 and the second folding member 32 are rotatably connected through the rotating member 33, the folding angle detecting device is disposed on the first folding member 31 or the second folding member 32, and the folding angle detecting device is configured to detect a rotation angle between the first folding member 31 and the second folding member 32.

For example, as shown in fig. 2, the first folding member 31 and the second folding member 32 are rotatably connected by a rotating member 33, the folding angle detecting device is disposed on the first folding member 31, and the folding angle detecting device is connected to the rotating member 33, and when the first folding member 31 rotates relative to the second folding member 32, the folding angle detecting device is used for detecting a rotating angle between the first folding member 31 and the second folding member 32 after the first folding member 31 rotates relative to the second folding member 32.

For another example, the first folding member 31 and the second folding member 32 are rotatably connected by a rotating member 33, the folding angle detecting device is disposed on the second folding member 32, and the folding angle detecting device is connected to the rotating member 33, when the second folding member 32 rotates relative to the first folding member 31, the folding angle detecting device is used for detecting a rotating angle between the first folding member 31 and the second folding member 32 after the second folding member 32 rotates relative to the first folding member 31.

In some embodiments, the rotating member 33 has a moving portion (not shown) that is movable in the width direction of the first folding member 31 and/or the width direction of the second folding member 32 with the relative rotation of the first folding member 31 and the second folding member 32, and the moving portion is connected to the folding angle detecting means.

For example, the moving portion may move in the width direction of the first folding member 31 and the width direction of the second folding member 32 with the relative rotation of the first folding member 31 and the second folding member 32, and the moving portion is connected to the folding angle detection means.

For another example, the moving portion may move in the width direction of the second folding member 32 with the relative rotation of the first folding member 31 and the second folding member 32, and the moving portion is connected to the folding angle detecting device.

Further, the rotating part is a hinge, and the hinge is a folding screen hinge which can reduce the crease of the screen of the electronic equipment.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A folding angle detection device is applied to an electronic device with a folding screen, wherein the electronic device at least comprises two folding pieces which are rotatably connected, and the folding angle detection device is characterized by comprising:

a guide rail, which is a current-carrying guide rail having a resistor, and which is fixed to one of the folding pieces of the electronic apparatus;

the first end of the sliding assembly is slidably arranged on the guide rail, at least part of the sliding assembly can conduct electricity, the second end of the sliding assembly is connected with a rotating shaft or another folding piece connected with the folding screen where the guide rail is located, and the electronic equipment can drive the sliding assembly to slide along the guide rail in the folding process;

the angle determining component is used for determining the rotation angle of the electronic equipment according to the resistance value between one end of the guide rail and the first end of the sliding component.

2. The folding angle detecting apparatus according to claim 1, wherein the guide rail includes a first guide rail and a second guide rail that are parallel to each other, the angle determining member has a first access end and a second access end, the first access end is connected to a first end of the first guide rail, the second access end is connected to a first end of the second guide rail, and the first end of the first guide rail and the first end of the second guide rail are located at the same end in the longitudinal direction of the guide rail.

3. The folding angle detecting apparatus according to claim 2, wherein the second end of the first rail and the second end of the second rail are each provided with an insulating barrier.

4. The folding angle detecting device of claim 1, wherein the sliding assembly includes a sliding member and a conductive member, a first end of the sliding member is slidably disposed on the guide rails, a second end of the sliding member is adapted to be connected to the electronic device, the conductive member is connected to the first end of the sliding member, and two ends of the conductive member respectively abut against the two guide rails.

5. The folding angle detection device of claim 4, wherein the sliding member includes a slider, a connecting band, and an elastic member, the slider is slidably disposed on the guide rail, one end of the connecting band is connected to the slider, and the other end of the connecting band is connected to the rotation shaft of the electronic apparatus or another folding screen via the elastic member.

6. The folding angle detection device according to claim 2, wherein the resistances of the first rail and the second rail are both uniform resistances.

7. The folding angle detection apparatus of claim 1, wherein the angle determination module includes a measurement circuit, a processor and a memory, the measurement circuit is connected to the guide rail, the measurement circuit is configured to measure a resistance value between one end of the guide rail and the first end of the sliding module, and the processor is configured to determine the rotation angle of the electronic device according to the resistance value.

8. An electronic apparatus, comprising the folding angle detection device according to any one of claims 1 to 7, a first folding member, a second folding member, and a rotating member, wherein the first folding member and the second folding member are rotatably connected by the rotating member, the folding angle detection device is provided on the first folding member or the second folding member, and the folding angle detection device is configured to detect a rotation angle between the first folding member and the second folding member.

9. The electronic device according to claim 8, wherein the rotating member has a moving portion that is movable in a width direction of the first folding member and/or a width direction of the second folding member with relative rotation of the first folding member and the second folding member, the moving portion being connected to the folding angle detection means.

10. The electronic device of claim 9, wherein the rotating member is a hinge.