Synchronous pressing key and electronic product

Abstract

The utility model relates to a synchronous pressing key and an electronic product, the synchronous pressing key comprises a keycap, a structural frame and a synchronous rotating shaft located in the structural frame, one end of the synchronous rotating shaft is connected with one end of the keycap along the length direction, and the other end of the synchronous rotating shaft is connected with the other end of the keycap along the length direction; a mounting position is formed in the middle of the synchronous rotating shaft, and the mounting position is matched with a mounting structure to form rotation constraint on the synchronous rotating shaft. Through the above arrangement, when a user applies pressure to the key cap, no matter how the pressure applying position changes, the whole key cap can be guaranteed to lift synchronously, good use touch is provided, and the precision of pressure sensing measurement can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure sensing, in particular to a synchronous pressing button and an electronic product. Background Art

[0002] Physical buttons are widely used in electronic products such as mobile phones, PADs, and various consumer electronics. They primarily rely on user pressure to perform corresponding functions, such as turning the device on and off, adjusting the volume, and turning pages. With the development of technology, a new type of pressure-sensitive button has emerged on the market. These buttons not only provide the tactile feel and functionality of physical buttons, but also can identify various parameters such as the location, size, and even sliding of the press, thereby providing a richer range of pressure-sensitive functions. These buttons are becoming increasingly popular in the market.

[0003] The pressure-sensitive buttons currently on the market mostly use long strip-shaped keycaps. Their original intention is to provide users with multiple different touch and pressure positions. A frame structure that bears force and produces deformation is connected under the keycap, and a pressure sensing element is installed on the frame structure. When the user touches different positions on the keycap, the pressure sensing element can sense the corresponding pressure parameters.

[0004] However, when studying related technologies, the applicant discovered that due to the limitations of the assembly process and the structural design of the pressure-sensitive frame, when the user presses down one end of the button, the other end of the button is prone to warping upward. This phenomenon not only affects the user's tactile sense, but more importantly, it also affects the accuracy of the pressure sensing element in sensing downward pressure. Utility Model Content

[0005] In order to solve the defects of the prior art, the present invention provides a synchronous pressing button and an electronic product.

[0006] On the one hand, the technical solution adopted by the present invention is a synchronous press key, including a keycap and a structural frame, the keycap is assembled on the structural frame, the structural frame is also equipped with a pressure-sensing component, and also includes a synchronous rotating shaft located in the structural frame, one end of the synchronous rotating shaft is connected to one end of the keycap along the length direction, and the other end is connected to the other end of the keycap along the length direction; the middle part of the synchronous rotating shaft forms an installation position, and the installation position cooperates with the installation structure to form a rotation constraint on the synchronous rotating shaft.

[0007] Preferably, the keycap is fixed on the structural frame, an installation cavity is formed inside the structural frame, the synchronization shaft is arranged in the installation cavity along the length direction of the keycap, and both ends of the synchronization shaft are rotatably connected to the structural frame.

[0008] Preferably, the middle portion of the synchronous rotating shaft extends horizontally toward the outside of the installation cavity to form the installation position.

[0009] Preferably, a capacitor layer is installed on the structural frame, and the capacitor layer is located between the keycap and the structural frame.

[0010] Preferably, the structural frame is provided with a pot piece on a side opposite to the keycap.

[0011] Preferably, the pot piece and / or the capacitor layer is electrically connected to the pressure sensing component.

[0012] Preferably, a stop block is provided in the structural frame, the stop block is fixed to the side of the structural frame where the keycap is in contact and extends toward the pot piece, and the stop block is directly opposite to the pot piece.

[0013] Preferably, the structural frame includes a support frame and an elastic rod, the elastic rod and the support frame at least contact each other to form a force point, and the pressure applied to the keycap is transmitted to the elastic rod through the force point;

[0014] The keycap is mounted on the support frame, and the pressure sensing component is mounted on the elastic rod.

[0015] Preferably, the support frame and the elastic rod are fixedly connected to form the force point, and the pressure sensing component includes at least one pressure sensor fixed on the elastic rod.

[0016] Preferably, the pressure sensing component includes at least two pressure sensors, which are distributed on both sides of the force point.

[0017] Preferably, the support frame and the elastic rod interfere with each other to form at least two force points, and the pressure sensing component is provided on the elastic rod and is located between the two force points.

[0018] Preferably, a mounting plate is fixedly connected below the elastic rod, and a pot piece is installed on a side of the mounting plate away from the keycap;

[0019] The mounting plate and the elastic rod are fixedly connected to form a support point, and the pot pieces are arranged in pairs on both sides of the support point.

[0020] On the other hand, the present invention further provides an electronic product, comprising a housing, on which the aforementioned synchronous pressing button is mounted.

[0021] Preferably, an opening for assembling the synchronous pressing button is opened on the shell, and a mounting structure is fixed inside the shell, and the mounting structure is rotationally matched with the mounting position of the synchronous rotating shaft.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. By setting up a synchronous shaft, when the user applies pressure to the keycap, no matter how the pressure changes, the entire keycap can be guaranteed to rise and fall synchronously, providing a good tactile feel while ensuring the accuracy of pressure measurement;

[0024] 2. The middle portion of the synchronous rotating shaft extends horizontally toward the outside of the installation cavity to form the installation position, which facilitates installation and coordination with the installation structure, simplifying assembly;

[0025] 3. The capacitor layer installed on the structural frame can directly detect the pressure information on the keycap, and then the position change of the force can be obtained under the relevant algorithm to realize functions such as touch or sliding control;

[0026] 4. It is also equipped with a pot structure, which can give users a good mechanic's key touch and realize the on-off switch function;

[0027] 5. Electrically connecting the pot and capacitor layer to the pressure-sensing component can reduce the number of wiring harnesses connected to the overall key structure, further simplifying assembly;

[0028] 6. The design of the stop block can prevent excessive deformation of the elastic rod and pot piece caused by excessive force;

[0029] 7. By setting up a capacitive layer or pressure-sensitive components, many functions such as touch, sliding, pressing with different forces, and traditional mechanical buttons can be realized. In addition, the ability to identify the pressed position allows the realization of multiple virtual buttons, greatly enriching the functionality and fun of physical buttons. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be described in detail below with reference to the embodiments and accompanying drawings, wherein:

[0031] Figure 1 is an isometric view of synchronous key presses in one embodiment;

[0032] Figure 2 is an elevation isometric view of synchronous key pressing in another embodiment;

[0033] Figure 3 is a partial cross-sectional schematic diagram of an electronic product equipped with a key in an embodiment;

[0034] Figure 4 yes Figure 3 A front view of an embodiment;

[0035] Figure 5 is a front view of a partial structure of an electronic product equipped with buttons in one embodiment;

[0036] Figure 6 is a front view of a synchronously pressed key in one embodiment;

[0037] Figure 7 2 is a front view of another embodiment of synchronous key pressing.

[0038] 10. Keycap; 11. Structural frame; 12. Support frame; 13. Elastic rod; 14. Capacitor layer; 15. Stop block; 16. Pressure sensing component; 20. Synchronous shaft; 21. Mounting position; 30. Pot piece; 31. Mounting plate; 40. Housing; 41. Opening; 42. Stop block; 43. Buckle. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions, and advantages of the present invention more apparent, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are illustrative and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0040] The utility model discloses a synchronous pressing key, such as Figure 1-2 As shown, it includes a keycap 10 and a structural frame 11, the keycap 10 is assembled on the structural frame 11, the structural frame 11 is also equipped with a pressure sensing component 16, and also includes a synchronization shaft 20 located in the structural frame 11, one end of the synchronization shaft 20 is connected to one end of the keycap 10 along the length direction, and the other end is connected to the other end of the keycap 10 along the length direction; the middle part of the synchronization shaft 20 forms a mounting position 21, and the mounting position 21 cooperates with the mounting structure to form a rotation constraint on the synchronization shaft 20.

[0041] Since the key can form a rotation constraint with the mounting structure through the mounting position 21 after assembly, no matter where the keycap 10 is pressed, as long as the keycap 10 is displaced downward, it will drive the synchronous rotation to rotate downward around the mounting position 21. Since the two sections of the synchronous shaft 20 are respectively connected to the two sections of the keycap 10, the entire keycap 10 rotates synchronously under the rotation of the synchronous shaft 20, thereby achieving the effect of synchronous lifting and lowering of the keycap 10 as a whole.

[0042] Specifically, the keycap 10 is fixed on the structural frame 11, and a mounting cavity is formed inside the structural frame 11. The synchronization shaft 20 is arranged in the mounting cavity along the length direction of the keycap 10, and both ends of the synchronization shaft 20 are rotationally connected to the structural frame 11. In one embodiment, a pair of opposite mounting holes are opened on a pair of side walls of the structural frame 11, and the two ends of the synchronization shaft 20 are respectively inserted into the mounting holes to achieve rotational connection. Of course, in other embodiments, the keycap 10 may also have a structure similar to an ear seat extending downward, and the synchronization shaft 20 is directly rotationally connected to the ear seat structure, that is, the synchronization shaft 20 is directly connected to the keycap 10, rather than being indirectly connected through the structural frame 11.

[0043] In one embodiment, the middle portion of the synchronization shaft 20 extends horizontally toward the outside of the installation cavity to form the installation position 21. At this time, the synchronization shaft 20 forms a C-shaped structure. Since the middle portion protruding from the installation cavity is located outside the installation cavity, that is, outside the structural frame 11, positional interference can be avoided when assembling with the installation structure, and a larger operating space is provided for assembly, making assembly more convenient.

[0044] In one embodiment, to achieve multifunctional keys, a capacitor layer 14 is mounted on the structural frame 11. The capacitor layer 14 is located between the keycap 10 and the structural frame. This capacitor layer 14 can identify the location of the force applied to the keycap 10. With this parameter, various control functions such as touch and sliding can be achieved. Of course, in other embodiments, the capacitor layer 14 may not be used. Instead, multiple pressure sensors arranged in pairs may be used to calculate the deformation of the elastic rod 13 using the multiple sensors, and the aforementioned parameters regarding the location of the force applied can also be obtained.

[0045] In addition, to provide a good pressing tactile feel, in one embodiment, a pot piece 30 is provided on the side of the structural frame 11 opposite the keycap 10. This pot piece 30 is a pot piece 30 key, key spring, or metal spring commonly used in the prior art. When the pressure on the keycap 10 exceeds the sudden change value of the pot piece 30, the pot piece 30 undergoes a sudden change in deformation, thus achieving the on / off function of a traditional mechanical key and providing a good feedback experience. The number of pot pieces 30 can be designed according to actual conditions and can be single, paired, or multiple.

[0046] As an optimization, the capacitor layer 14 and the pot piece 30 can be electrically connected to the pressure sensing component 16 separately or simultaneously. The pressure sensing component 16 includes the necessary pressure sensor and the corresponding flexible circuit board. When the three are connected together, the wiring harness between the button and the external assembly can be greatly simplified.

[0047] In order to more clearly illustrate the situation of the above-mentioned key being assembled in the electronic product, refer to Figure 3-4 , which shows a partial structure of an electronic product, which includes a shell 40, an opening 41 for assembling a button is opened on the shell 40, and a mounting structure is fixed inside the shell 40, and the mounting structure is rotatably matched with the mounting position 21 of the synchronous shaft 20.

[0048] Specifically, in one embodiment, the mounting structure includes a stopper 42 fixed to the interior of the housing 40. A slot is formed between the stopper 42 and the housing 40 to engage and limit the synchronization shaft 20, so that the synchronization shaft 20 can only rotate between the housing 40 and the stopper 42. Of course, in other embodiments, the mounting structure can also be in other forms, such as a semi-open slot 41 formed on the stopper 42, which forms a snap fit with the synchronization shaft 20.

[0049] Furthermore, the block 42 is also used to support the entire key, that is, the key is placed on the block 42, and the block 42 and the housing 40 press the key to achieve assembly. In one embodiment, the structural frame 11 has raised steps extending horizontally to both sides, and the raised steps abut against the housing 40, and the key is assembled under the pressing action of the block 42; in another embodiment, Figure 5 As shown, instead of using the steps on the structural frame 11, a snap-fit structure 43 can be designed in the shell 40. When the button is assembled in place, the snap-fit structure 43 is snap-fitted and fixed to the button. This arrangement allows the button to be assembled not only from the inside of the shell 40, but also from the outside of the shell 40 into the opening 41 for assembly, providing a variety of assembly operations that can be applied to different assembly scenarios.

[0050] Of course, in one embodiment, since the pot piece 30 is provided, when the key is assembled between the baffle and the shell 40, a certain degree of pre-pressure can be applied to allow the pot piece 30 to produce a preset deformation, which can significantly improve the assembly stability of the key.

[0051] It should also be noted that the schemes of the structural frame 11 and the pressure-sensing component 16 are diverse and are not limited to the specific methods in the above embodiments. The structural frame 11 includes a support frame 12 and an elastic rod 13. The elastic rod 13 and the support frame 12 at least contact each other to form a force point, and the pressure applied to the keycap 10 is transmitted to the elastic rod 13 through the force point; the keycap 10 is installed on the support frame 12, and the pressure-sensing component 16 is installed on the elastic rod 13.

[0052] In one embodiment, as an example reference Figure 6The support frame 12 and the elastic rod 13 are fixedly connected and form the force-bearing point. The pressure-sensing assembly 16 includes at least two pressure sensors fixed to the elastic rod 13 and distributed on both sides of the force-bearing point. In this case, the entire structural frame 11 has an I-shaped structure, which is simple and compact, facilitating assembly. Of course, in another embodiment, a single pressure sensor can be used, in which case only the magnitude of pressure is sensed.

[0053] At the same time, a capacitor layer 14 is fixed between the keycap 10 and the structural frame 11, and a pair of pots 30 are fixed to the bottom surface of the elastic rod 13. Moreover, the capacitor layer 14 and the pots 30 are electrically connected to the flexible circuit board in the pressure sensing component 16. Of course, in another embodiment, the capacitor layer 14 here can also be eliminated. By using a pair of pressure sensors distributed on both sides of the force point, the magnitude and position parameters of the pressure on the keycap 10 can also be obtained, and thus a variety of pressure sensing control schemes such as touch, slide, and press can also be realized. The overall structure of this embodiment is very simple and compact, and has high stability.

[0054] As another example, Figure 7 As shown, a mounting plate 31 is fixedly connected below the elastic rod 13. A pot piece 30 is mounted on the side of the mounting plate 31 away from the keycap 10. The mounting plate 31 and the elastic rod 13 are fixedly connected to form a support point, and the pot pieces 30 are arranged in pairs on both sides of the support point. In this embodiment, the support frame 12 and the elastic rod 13 can be integrated or separate, and the elastic rod 13 and the mounting plate 31 can be integrated or separate. The pressure sensing assembly 16 is mounted on the upper surface of the elastic rod 13 and is electrically connected to the flexible circuit board of the pot piece 30 mounted on the lower surface of the mounting plate 31.

[0055] In the above embodiments, the installation methods between the keycap 10 and the structural frame 11, between the pressure sensing component 16 and the elastic rod 13, as well as the installation method of the capacitor layer 14 and the pot piece 30 are all diverse, and the commonly used fixing methods in the prior art, such as welding, bonding, screws, etc., can be selected according to the actual product design situation.

[0056] In this specification, the use of terms such as "Embodiment 1," "this embodiment," or "in one embodiment" indicates that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example; furthermore, the specific features, structures, materials, or characteristics described may be appropriately combined in any one or more embodiments or examples.

[0057] In the description of this specification, the terms "connect," "install," "fix," "dispose," and "have" are to be understood in a broad sense. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0058] In the description of this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising the element.

[0059] The above description of the embodiments is to facilitate ordinary technicians in this technical field to understand and apply the technology of this case. People familiar with the technology in this field can obviously make various modifications to these examples easily and apply the general principles described here to other embodiments without having to go through creative work. Therefore, this case is not limited to the above embodiments. Modifications to the following situations should all be within the scope of protection of this case: ① A new technical solution implemented based on the technical solution of this utility model and combined with existing common knowledge, the technical effect produced by the new technical solution does not exceed the technical effect of this utility model; ② The equivalent replacement of some features of the technical solution of this utility model with common technology, the technical effect produced is the same as the technical effect of this utility model; ③ The technical solution of this utility model can be expanded, and the substantive content of the expanded technical solution does not exceed the technical solution of this utility model; ④ The equivalent transformation made by using the contents of the description and drawings of this utility model is directly or indirectly applied to other related technical fields.

Claims

1. A synchronous press key, comprising a keycap and a structural frame, wherein the keycap is mounted on the structural frame, and a pressure-sensitive component is also mounted on the structural frame, characterized in that: It also includes a synchronous rotating shaft located in the structural frame, one end of the synchronous rotating shaft is connected to one end of the keycap along the length direction, and the other end is connected to the other end of the keycap along the length direction; A mounting position is formed in the middle of the synchronous rotating shaft, and the mounting position cooperates with the mounting structure to form rotation constraint on the synchronous rotating shaft.

2. The synchronous pressing key according to claim 1, characterized in that: The keycap is fixed on the structural frame, and a mounting cavity is formed inside the structural frame. The synchronous rotating shaft is arranged in the mounting cavity along the length direction of the keycap, and both ends of the synchronous rotating shaft are rotatably connected to the structural frame.

3. The synchronous pressing key according to claim 2, characterized in that: The middle portion of the synchronous rotating shaft horizontally extends toward the outside of the installation cavity to form the installation position.

4. The synchronous pressing key according to claim 1, characterized in that: A capacitor layer is installed on the structural frame, and the capacitor layer is located between the keycap and the structural frame.

5. The synchronous pressing key according to claim 4, characterized in that: The structural frame is provided with a pot piece on a side opposite to the keycap.

6. The synchronous pressing key according to claim 5, characterized in that: The pot piece and / or the capacitor layer are electrically connected to the pressure sensing component.

7. The synchronous pressing key according to claim 5, characterized in that: A stop block is provided in the structural frame. The stop block is fixed to a side of the structural frame where the keycap is in contact and extends toward the pot piece. The stop block is directly opposite to the pot piece.

8. The synchronous pressing key according to any one of claims 1 to 7, characterized in that: The structural frame includes a support frame and an elastic rod, wherein the elastic rod and the support frame at least contact each other to form a force point, and the pressure applied to the keycap is transmitted to the elastic rod through the force point; The keycap is mounted on the support frame, and the pressure sensing component is mounted on the elastic rod.

9. The synchronous pressing key according to claim 8, characterized in that: The support frame and the elastic rod are fixedly connected to form the force point, and the pressure sensing component includes at least one pressure sensor fixed on the elastic rod.

10. The synchronous pressing key according to claim 9, characterized in that: The pressure sensing component includes at least two pressure sensors, which are distributed on both sides of the force point.

11. The synchronous pressing key according to claim 8, characterized in that: The support frame and the elastic rod interfere with each other to form at least two force points, and the pressure sensing component is arranged on the elastic rod and is located between the two force points.

12. The synchronous pressing key according to claim 11, characterized in that: A mounting plate is fixedly connected below the elastic rod, and a pot piece is installed on a side of the mounting plate away from the keycap; The mounting plate and the elastic rod are fixedly connected to form a support point, and the pot pieces are arranged in pairs on both sides of the support point.

13. An electronic product including a housing, characterized in that The housing is equipped with a synchronous pressing button as described in any one of claims 1-12.

14. The electronic product according to claim 13, characterized in that: The shell is provided with an opening for assembling the synchronous pressing button, and a mounting structure is fixed inside the shell, and the mounting structure is rotationally matched with the mounting position of the synchronous rotating shaft.

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