Intelligent touch interaction unit

Abstract

The utility model relates to an intelligent touch interaction unit which comprises a capacitance supporting layer used for recognizing touch sliding signals, an elastic pressure sensing layer used for recognizing pressure signals and a feedback structure capable of conducting feedback according to the pressure signals, and a deformation space is formed between the capacitance supporting layer and the elastic pressure sensing layer in the thickness direction. The feedback structure is located in the middle of the deformation space and located on the side, away from the capacitor supporting layer, of the elastic pressure sensing layer. The elastic pressure-sensitive layer has elasticity, when an operator slides on the capacitor supporting layer, the capacitor supporting layer recognizes a touch sliding signal, meanwhile, pressure during touch sliding can be transmitted to the elastic pressure-sensitive layer, and due to the fact that the elastic pressure-sensitive layer is supported by the feedback structure, the elastic pressure-sensitive layer hunches towards the direction of the capacitor supporting layer; the deformation of the elastic pressure sensing layer is in the deformation space, and when the pressure reaches a set threshold value of the feedback structure, the feedback structure sends out a feedback signal.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure-sensitive touch control, and in particular to an intelligent touch control interaction unit. Background Art

[0002] With the popularization and development of electronic consumer products, pressure touch technology has also been widely used in electronic products. Its main function is to accurately identify the user's force and identify relevant information about the pressure, such as the size, direction, and position of the force, and then match different control and response methods based on this information, so that electronic products can have a variety of service modes and functions.

[0003] Conventional pressure touch designs often include a touch module for identifying sliding trajectories and a pressure sensing module for sensing the magnitude of pressure. If feedback is required, a separate feedback module must be added. The structure and wiring of the three modules are relatively complex, making them unable to meet the current requirements for lightweight and miniaturized consumer electronic products. Utility Model Content

[0004] In order to solve the defects of the pressure feedback touch design in the prior art, which has a relatively complex structure and wiring, the present invention proposes an intelligent touch interaction unit.

[0005] The technical solution adopted by the present invention is an intelligent touch interaction unit, which includes a capacitor support layer, an elastic pressure-sensitive layer and a feedback structure connected in sequence in the thickness direction. There is a deformation space between the capacitor support layer and the elastic pressure-sensitive layer in the thickness direction, and the feedback structure is located in the middle of the deformation space.

[0006] Preferably, the capacitor support layer or the elastic pressure-sensing layer is connected to a stop block, and the stop block is located in the deformation space and directly above the feedback structure.

[0007] Preferably, the capacitor support layer and the elastic pressure-sensing layer are connected via a flexible circuit.

[0008] Preferably, the feedback structure undergoes a structural mutation after the pressure reaches a threshold, and a feedback signal is generated when the structural mutation occurs.

[0009] Preferably, the capacitor support layer is connected to a keycap on a side away from the elastic pressure-sensitive layer.

[0010] Preferably, the capacitor support layer has a protruding structure protruding outward, and the protruding structure is configured to abut against the external frame on a side away from the elastic pressure-sensitive layer.

[0011] Preferably, buckles are connected to the capacitor support layer and / or the elastic pressure-sensitive layer, the buckles are arranged along the thickness direction, and are configured to be snap-fitted to an external frame.

[0012] Preferably, the capacitor support layer includes a capacitor layer and a support structure, the elastic pressure-sensitive layer includes a pressure-sensitive layer and an elastic structure, and the capacitor layer, the support structure, the elastic structure and the pressure-sensitive layer are connected in sequence in the thickness direction.

[0013] Preferably, the elastic pressure-sensitive layer includes at least one pair of strain resistors, and the angle formed between the strain direction of each pair of strain resistors and the length direction of the elastic pressure-sensitive layer is greater than or equal to 0° and less than 90°.

[0014] Preferably, the elastic pressure-sensing layer includes two pairs of strain resistors, and the two pairs of strain resistors form a Wheatstone bridge.

[0015] Preferably, the support structure and the elastic structure are integrally formed.

[0016] In order to solve the defects of the existing pressure feedback touch design that occupies a large space and cannot meet the requirements of lightweight and miniaturized consumer electronic products, the present invention proposes an electronic interactive device.

[0017] The present application also discloses an electronic interactive device, comprising the above-mentioned intelligent touch interactive unit.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present application discloses an intelligent touch interaction unit, comprising a capacitive support layer for identifying touch sliding signals, an elastic pressure-sensitive layer for identifying pressure signals, and a feedback structure capable of providing feedback based on the pressure signal. A deformation space is provided between the capacitive support layer and the elastic pressure-sensitive layer in the thickness direction. The feedback structure is located in the middle of the deformation space and on the side of the elastic pressure-sensitive layer away from the capacitive support layer. The elastic pressure-sensitive layer is elastic. When an operator slides on the capacitive support layer, the capacitive support layer identifies the touch sliding signal. At the same time, the pressure during the touch sliding can be transmitted to the elastic pressure-sensitive layer. Since the elastic pressure-sensitive layer is supported by the feedback structure, the elastic pressure-sensitive layer will arch toward the capacitive support layer. The deformation of the elastic pressure-sensitive layer is in the deformation space. When the pressure reaches the set threshold of the feedback structure, the feedback structure will send a feedback signal. Compared with the prior art, the intelligent touch interaction unit disclosed in the present application has a reasonable arrangement position of the capacitive support layer, the elastic pressure-sensitive layer and the feedback structure. At the same time, it can identify sliding signals and pressure signals and provide pressure feedback through an extremely simple structure, which can achieve the purpose of simplifying the structure and wiring of the pressure feedback touch design.

[0020] This application also discloses an electronic interactive device that incorporates an intelligent touch interaction unit, reducing the space occupied by existing pressure feedback touch designs, thereby making the electronic interactive device lighter and smaller. Compared to existing technologies, the electronic interactive device disclosed in this application can achieve the goal of lightweighting and miniaturizing current consumer electronic products. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be described in detail below with reference to the embodiments and accompanying drawings, wherein:

[0022] Figure 1 A schematic structural diagram of an embodiment of an intelligent touch interaction unit provided according to an embodiment of the present utility model is shown;

[0023] Figure 2 Shown according to Figure 1 A schematic diagram of the structure of a smart touch interaction unit provided is mounted on an external rack;

[0024] Figure 3 A structural diagram of another embodiment of an intelligent touch interaction unit provided according to an embodiment of the present utility model is shown;

[0025] Figure 4 Shown according to Figure 3 A schematic diagram of the structure of a smart touch interaction unit provided is mounted on an external rack;

[0026] Figure 5 is a schematic diagram of the arrangement of strain resistors in the elastic pressure-sensing layer in an embodiment;

[0027] Figure 6 yes Figure 5 Schematic diagram of a Wheatstone circuit formed by strain gauge resistors in the elastic pressure-sensing layer in an embodiment.

[0028] Description of labels:

[0029] 10. Capacitor support layer; 11. Capacitor layer; 12. Support structure; 13. Stop block; 14. Protruding structure; 15. Buckle;

[0030] 20. Elastic pressure-sensitive layer; 21. Pressure-sensitive layer; 22. Elastic structure;

[0031] 30. Feedback structure; 40. Deformation space; 50. Flexible circuit; 60. Keycap; 70. External frame;

[0032] R1, first resistor; R2, second resistor; R3, third resistor; R4, fourth resistor. DETAILED DESCRIPTION

[0033] 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 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.

[0034] This utility model discloses an intelligent touch interactive unit, please refer to Figures 1 to 4 , including a capacitor support layer 10, an elastic pressure-sensitive layer 20 and a feedback structure 30 connected in sequence in the thickness direction, a deformation space 40 is provided between the capacitor support layer 10 and the elastic pressure-sensitive layer 20 in the thickness direction, and the feedback structure 30 is located in the middle of the deformation space 40.

[0035] The device comprises a capacitive support layer 10 for identifying touch sliding signals, an elastic pressure-sensitive layer 20 for identifying pressure signals, and a feedback structure 30 capable of providing feedback based on the pressure signals. A deformation space 40 is defined between the capacitive support layer 10 and the elastic pressure-sensitive layer 20 in the thickness direction. The feedback structure 30 is located in the middle of the deformation space 40 and on the side of the elastic pressure-sensitive layer 20 away from the capacitive support layer 10. The elastic pressure-sensitive layer 20 is elastic. When an operator slides on the capacitive support layer 10, the capacitive support layer 10 identifies the touch sliding signals, and the pressure generated by the touch sliding is transmitted to the elastic pressure-sensitive layer 20. Because the elastic pressure-sensitive layer 20 is supported by the feedback structure 30, it arches toward the capacitive support layer 10. The deformation of the elastic pressure-sensitive layer 20 is within the deformation space 40. When the pressure reaches a set threshold of the feedback structure 30, the feedback structure 30 generates a feedback signal. Compared with the prior art, the present application discloses an intelligent touch interaction unit in which the capacitive support layer 10, the elastic pressure-sensitive layer 20 and the feedback structure 30 are arranged in reasonable positions. At the same time, an extremely simple structure can be used to identify sliding signals and pressure signals and perform pressure feedback, thereby achieving the purpose of simplifying the structure and wiring of the pressure feedback touch design.

[0036] Specifically, the provision of the deformation space 40 prevents the capacitive support layer 10 from obstructing the deformation of the elastic pressure-sensing layer 20. This reduces the thickness of the deformation space 40 by increasing the elastic modulus of the elastic pressure-sensing layer 20. Therefore, the provision of the deformation space 40 has little impact on the size and volume of the smart touch interaction unit. Furthermore, the middle position refers to the area between the two ends of the deformation space 40, not just the midpoint of the line connecting the two ends of the deformation space 40.

[0037] It should be noted that the feedback structure 30 can be an active electric control feedback structure 30 or a passive mechanical feedback structure 30 , and can be selected according to specific needs.

[0038] In the present application, the specific position of the deformation space 40 on the capacitor support layer 10 and the elastic pressure-sensitive layer 20 is not limited. Under normal circumstances, the deformation space 40 can be symmetrically arranged along the symmetry axis or the central axis of the capacitor support layer 10 and the elastic pressure-sensitive layer 20. In some special application scenarios, the deformation space 40 can be asymmetrically arranged to one side of the symmetry axis or the central axis, so that the smart touch interaction unit can be applied to more scenarios.

[0039] In some embodiments, please refer to Figures 1 to 4 The capacitor support layer 10 or the elastic pressure-sensing layer 20 is connected to a stop block 13 . The stop block 13 is located in the deformation space 40 and directly above the feedback structure 30 .

[0040] Specifically, in order to prevent the smart touch interaction unit from exceeding the distance that can be pressed down or exceeding the level at which the pressure cannot be recognized, a stop block 13 is connected to the capacitive support layer 10 or the elastic pressure sensing layer 20, and the stop block 13 is located directly above the feedback structure 30 to limit the position of the maximum deformation, thereby providing stop protection for the smart touch interaction unit.

[0041] In some embodiments, please refer to Figures 1 to 4 The capacitor support layer 10 and the elastic pressure-sensing layer 20 are connected via a flexible circuit 50 .

[0042] Specifically, the flexible circuit 50 can be bent and can be loaded into a smaller space. At the same time, a signal connection is established between the capacitor support layer 10 and the elastic pressure-sensitive layer 20 through the flexible circuit 50, avoiding the defect that the capacitor support layer 10 and the elastic pressure-sensitive layer 20 need to be connected to the control components separately, simplifying redundant circuits and making wiring more reasonable.

[0043] In some specific embodiments, please refer to Figures 1 to 4 The flexible circuit 50 is arranged to fit the capacitor support layer 10 and / or the elastic pressure-sensitive layer 20 .

[0044] In order to further optimize the wiring and structure, the flexible circuit 50 is made to fit the capacitor support layer 10 and / or the elastic pressure-sensitive layer 20 .

[0045] In some embodiments, the feedback structure 30 generates a structural mutation after the pressure reaches a threshold, and a feedback signal is generated when the structural mutation occurs.

[0046] It should be noted that the feedback structure 30 is preferably a passive feedback structure 30, which generates a feedback signal by a sudden change in structure when the force reaches a certain threshold. The generation of the feedback signal is controlled by the pressure applied by the operator. Compared to an electrically controlled feedback structure 30, this avoids complex wiring, while also providing greater controllability and faster response times.

[0047] In some specific embodiments, the feedback structure 30 is a metal dome.

[0048] In other embodiments, the feedback structure 30 may also be other structures such as a piezoelectric igniter, so as to generate photoelectric signals and sound signals.

[0049] In some embodiments, please refer to Figures 1 to 4 The capacitor support layer 10 is connected to a key cap 60 on a side away from the elastic pressure-sensitive layer 20 .

[0050] Among them, the keycap 60 is used to protect the capacitor support layer 10 from damage by the external environment. The keycap 60 is preferably made of insulating material to prevent leakage. The edge of the keycap 60 can be configured with a sealing ring connected to the external frame 70 to achieve the purpose of waterproofing.

[0051] In some embodiments, please refer to Figure 1 and Figure 2 The capacitor support layer 10 has a protruding structure 14 protruding outward, and the protruding structure 14 is configured to abut against the external frame 70 on a side away from the elastic pressure-sensitive layer 20 .

[0052] It should be noted that the capacitor support layer 10 has a protruding structure 14 that protrudes outward. The protruding structure 14 can abut against the external frame 70 to secure the smart touch interaction unit. When loading, the protruding structure 14 needs to be loaded from the inside of the external frame 70. This method is more stable during loading and is not likely to fall off the external frame 70. In addition, the protruding structure 14 is directly obtained by protruding outward from the capacitor support layer 10, so its manufacturing process is simpler and the volume size can also be relatively small.

[0053] In some embodiments, please refer to Figure 3 and Figure 4 A buckle 15 is connected to the capacitor support layer 10 and / or the elastic pressure-sensitive layer 20 . The buckle 15 is arranged along the thickness direction and is configured to be snap-fitted to the external frame 70 .

[0054] It should be noted that a buckle 15 is connected to the capacitor support layer 10 and / or the elastic pressure-sensitive layer 20. The buckle 15 is arranged along the thickness direction of the smart touch interaction unit. The buckle 15 can be snapped into the external frame 70. The buckle 15 needs to be loaded from the outside of the external frame 70 during loading, and the smart touch interaction unit is pressed down at the loading position on the external frame 70 to fix the smart touch interaction unit. This method can facilitate the loading of the smart touch interaction unit, thereby improving the efficiency during production. In addition, the buckle 15 is directly set on the capacitor support layer 10 and / or the elastic pressure-sensitive layer 20, so its manufacturing process is simpler, and a relatively small volume size can also be obtained.

[0055] In some embodiments, the elastic pressure-sensing layer includes at least one pair of strain resistors, and an angle between a strain direction of each pair of strain resistors and a length direction of the elastic pressure-sensing layer is greater than or equal to 0° and less than 90°.

[0056] In some specific embodiments, the elastic pressure-sensing layer includes two pairs of strain resistors, and the two pairs of strain resistors form a Wheatstone bridge.

[0057] Specifically, the elastic pressure-sensing layer includes at least one pair of strain resistors, and the strain direction of each pair of strain resistors forms an angle greater than or equal to 0° and less than 90° with the longitudinal direction of the elastic pressure-sensing layer. That is, the strain resistors can be arranged in the longitudinal direction of the elastic pressure-sensing layer, or at an angle of 15°, 30°, 60°, or other angles with the longitudinal direction of the elastic pressure-sensing layer. In this case, when the elastic pressure-sensing layer deforms along the longitudinal direction, the deformation and the corresponding force can be calculated using existing calculation methods.

[0058] In this embodiment, Figure 5-6 As shown, the elastic pressure-sensing layer includes two pairs of strain resistors, and the two pairs of strain resistors R1, R2, R3, and R4 are connected in sequence to form a Wheatstone bridge, which can improve the accuracy and stability of pressure sensing. When the pressure is input on the keycap, the elastic pressure-sensing layer will be subjected to force and its two ends will produce downward bending deformation. Since the strain direction of the two pairs of strain resistors is the same as the deformation direction or there is an angle between them, as the input pressure changes, the resistance values ​​of the two pairs of strain resistors will also change differently. According to the amount of the change, the magnitude of the pressure can be calculated. Among them, the sum of the forces on a pair of strain resistors can be determined as the pressure value of the input pressure. Of course, using two pairs of strain resistors can further improve the accuracy of pressure sensing.

[0059] In some embodiments, please refer to Figures 1 to 4The capacitor support layer 10 includes a capacitor layer 11 and a support structure 12, and the elastic pressure-sensitive layer 20 includes a pressure-sensitive layer 21 and an elastic structure 22. The capacitor layer 11, the support structure 12, the elastic structure 22 and the pressure-sensitive layer 21 are connected in sequence in the thickness direction.

[0060] Specifically, the capacitor layer 11, support structure 12, elastic structure 22, and pressure-sensitive layer 21 are sequentially connected in the thickness direction. The support structure 12 can stably support the capacitor layer 11 and provide more options for the capacitor layer 11, such as selecting a lighter, thinner, and more flexible capacitor layer 11. The elastic structure 22 can also stably attach to the pressure-sensitive layer 21, allowing the operator to select an elastic structure 22 with an appropriate elastic coefficient without interference from the pressure-sensitive layer 21. At the same time, the separate arrangement also makes it easier to repair and replace the various components.

[0061] In some specific embodiments, the stop block 13 is located on the support structure 12 .

[0062] In some specific embodiments, the protruding structure 14 is located on the supporting structure 12 .

[0063] In some specific embodiments, the support structure 12 and the elastic structure 22 are integrally formed.

[0064] It should be noted that the support structure 12 and the elastic structure 22 are integrally formed, which can not only obtain higher structural strength but also simplify the assembly process, and also make it difficult for the elastic structure 22 to move on the support structure 12 and affect the accurate recognition of pressure.

[0065] An electronic interactive device comprises the above-mentioned intelligent touch interactive unit.

[0066] This application also discloses an electronic interactive device that incorporates an intelligent touch interaction unit, reducing the space occupied by existing pressure feedback touch designs, thereby making the electronic interactive device lighter and smaller. Compared to existing technologies, the electronic interactive device disclosed in this application can achieve the goal of lightweighting and miniaturizing current consumer electronic products.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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. An intelligent touch interaction unit, characterized in that: It comprises a capacitor support layer, an elastic pressure-sensitive layer and a feedback structure which are sequentially connected in the thickness direction. There is a deformation space between the capacitor support layer and the elastic pressure-sensitive layer in the thickness direction, and the feedback structure is located in the middle of the deformation space.

2. The intelligent touch interaction unit according to claim 1, characterized in that: The capacitor support layer or the elastic pressure-sensing layer is connected to a stop block, and the stop block is located in the deformation space and directly above the feedback structure.

3. The intelligent touch interaction unit according to claim 1, characterized in that: The capacitor support layer and the elastic pressure-sensing layer are connected via a flexible circuit.

4. The intelligent touch interaction unit according to claim 1, characterized in that: The feedback structure generates a structural mutation when the pressure reaches a threshold, and a feedback signal is generated when the structural mutation occurs.

5. The intelligent touch interaction unit according to claim 1, characterized in that: The capacitor support layer is connected to a key cap at a side away from the elastic pressure-sensitive layer.

6. The intelligent touch interaction unit according to claim 1, characterized in that: The capacitor support layer has a protruding structure protruding outward, and the protruding structure is configured to abut against an external frame on a side away from the elastic pressure-sensitive layer.

7. The intelligent touch interaction unit according to claim 1, characterized in that: Buckles are connected to the capacitor support layer and / or the elastic pressure-sensitive layer. The buckles are arranged along the thickness direction and are configured to be snap-connected with an external frame.

8. The intelligent touch interaction unit according to claim 1, characterized in that: The elastic pressure-sensitive layer includes at least one pair of strain resistors, and the angle formed between the strain direction of each pair of strain resistors and the length direction of the elastic pressure-sensitive layer is greater than or equal to 0° and less than 90°.

9. The intelligent touch interaction unit according to claim 8, characterized in that: The elastic pressure-sensing layer includes two pairs of strain resistors, and the two pairs of strain resistors form a Wheatstone bridge.

10. The intelligent touch interaction unit according to any one of claims 1 to 9, characterized in that: The capacitor support layer includes a capacitor layer and a support structure, the elastic pressure-sensitive layer includes a pressure-sensitive layer and an elastic structure, and the capacitor layer, the support structure, the elastic structure and the pressure-sensitive layer are sequentially connected in a thickness direction.

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