Touch feedback type structure

Abstract

The utility model discloses a touch feedback type structure which comprises a first panel and a base, the base is connected with the first panel, a printed circuit board (PCB) is installed on the base, a capacitor element is arranged on the PCB, a light guide piece is arranged between the first panel and the capacitor element, a light-emitting unit is arranged on the PCB, and the light-emitting unit is connected with the first panel. The light-emitting unit and the capacitor element are correspondingly arranged, the light-emitting unit is arranged close to the light guide part so that light emitted by the light-emitting unit can be conducted to the first panel through the light guide part, and the light-emitting unit and the capacitor element are both electrically connected with the PCB. The touch feedback type structure has the advantages of being simple in disassembly and assembly structure, low in manufacturing cost, simple in disassembly and assembly method, high in disassembly and assembly efficiency and the like.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, and in particular to a touch feedback structure. Background Technology

[0002] In modern homes and electronic devices, touch switches have become widely used in daily life due to their simple appearance and ease of operation. However, despite their high adoption rate, touch switches still have some limitations, particularly in providing user feedback and enhancing the human-computer interaction experience. Traditional touch switches typically use a direct, rigid snap-fit ​​connection. While this design is simple and cost-effective, it lacks the necessary feedback mechanism in actual use. When a user touches the switch, without obvious tactile feedback or audible cues, the user often cannot intuitively confirm whether the switch has been activated, thus reducing the convenience and reliability of use.

[0003] Chinese patent application publication number CN117749153A, titled "A Touch Switch," discloses a design for a touch switch device. This device features a middle shell assembly that integrates a vibration unit. The middle shell assembly directly contacts the panel assembly to effectively transmit the vibrations generated by the vibration unit to the panel assembly, thus achieving vibration feedback. Additionally, the device is equipped with a light-emitting unit. This device senses touch signals by directly placing a sensing sheet below the outer panel. However, this sensing sheet is isolated from the control circuit board by multiple components. Therefore, conductive probes must be used to connect and transmit the sensing signal to the circuit board. This design results in a complex internal structure, increasing manufacturing costs and assembly difficulty. Furthermore, the conductive probes and the sensing sheet are in point contact, relying solely on adhesive bonding, which can easily lead to poor contact or even failure during use due to factors such as weakening adhesiveness. Additionally, the light generated by the light-emitting unit needs to be uniformly distributed through insulating components before illuminating the touch panel. While this design aims to ensure uniform light distribution, in actual use, this structure may result in insufficient clarity when the light reaches the touch panel, affecting the user's visual experience. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a touch feedback structure that simplifies structural components such as conductive probes, reduces manufacturing costs and assembly difficulty, improves the stability and reliability of touch sensing, makes touch operation more sensitive and accurate, and enables the direct guidance of light to the first panel, thereby significantly improving the user experience.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A touch feedback structure includes a first panel and a base. The first panel is connected to the base, and a PCB board is mounted on the base. The PCB board has a capacitor element. A light guide is provided between the first panel and the capacitor element. A light-emitting unit is provided on the PCB board. The light-emitting unit is positioned close to the light guide so that the light emitted by the light-emitting unit is conducted to the first panel through the light guide. Both the light-emitting unit and the capacitor element are electrically connected to the PCB board.

[0007] By adopting the aforementioned technical solution, the capacitive sensing element is directly mounted on the PCB board. When the first panel is touched, the sensing element detects a signal. A light guide is placed between the capacitive element and the first panel. The light guide amplifies the signal and transmits it to the capacitive element on the PCB board, thereby enhancing the strength and reliability of the sensing signal. Furthermore, a light-emitting unit is placed on the PCB board near the light guide. When the capacitive element detects a touch signal, the light-emitting unit can be triggered to emit light simultaneously. The light is transmitted to the first panel through the light guide. The proximity of the light-emitting unit to the light guide allows light to enter the light guide directly from the light-emitting unit, reducing light loss and scattering, providing visual feedback to the user, and enhancing the interactivity between the user and the device. Integrating the capacitive element and the light-emitting unit on the PCB board simultaneously simplifies the conductive probe in existing designs, effectively simplifying the internal structure of the device, reducing manufacturing costs and assembly difficulty, and making the sensing structure more stable, reliable, and less prone to failure.

[0008] There are several capacitor elements, and several touch parts are provided on the first panel. Each capacitor element corresponds to one touch part, so that when a person touches a touch part, the corresponding capacitor element detects the sensing signal.

[0009] Using the aforementioned technical solution, multiple touch points can be set on a single switch panel to control multiple different electrical appliances, and the multiple touch points do not interfere with each other.

[0010] The light-emitting unit can be placed on either side of the light guide; or, the light-emitting unit can be placed between the light guide and the PCB board.

[0011] Using the first technical solution mentioned above, it is known that, preferably, the light-emitting unit can be placed on one side of the light guide, which helps to reduce the scattering and loss of light in the air, improve the light transmission efficiency, and thus avoid interference with the capacitor element. Alternatively, when the light-emitting unit is placed between the light guide and the PCB board, the light can directly enter the light guide from the light-emitting unit without passing through an additional path or medium, thus ensuring the maximum light transmission efficiency. Both installation methods allow the light to be transmitted to the light guide more quickly and illuminate the entire touch area when the user touches the first panel, providing the user with faster visual feedback.

[0012] A vibration unit is also provided between the PCB board and the first panel. The vibration unit is electrically connected to the PCB board and contacts the first panel. The first panel is floatingly mounted on the base so that there is a floating gap X between the base and the first panel.

[0013] Using the aforementioned technical solution, it can be seen that the vibration unit is connected to the PCB board via an electrical connection. When the capacitive element receives a touch signal, the PCB board will drive the vibration unit to vibrate. This vibration effect directly acts on the first panel, and the user can feel obvious vibration feedback when touching the panel. By setting the vibration gap X, the necessary displacement space is provided for the vibration unit. When the vibration unit is working, it can move freely within this gap, generating sufficient amplitude and vibration frequency, thereby enhancing the interactive experience between the user and the device.

[0014] The vibration unit is placed in the center of the PCB board.

[0015] Using the aforementioned technical solution, it can be seen that when the vibration unit is located at the center of the PCB board, the generated vibration can spread evenly in all directions. This uniform vibration propagation makes the vibration of the entire panel more consistent when the first panel receives the vibration, avoiding the situation of excessively strong or weak local vibration, thereby improving the user experience.

[0016] An elastic element is provided on the base, and the elastic element abuts between the base and the first panel.

[0017] By adopting the aforementioned technical solution, it can be seen that when the vibration unit generates vibration, the elastic element can effectively transmit the vibration to the first panel, allowing the user to feel obvious vibration feedback. At the same time, the elastic element forms a stable support structure between the base and the first panel. This support can ensure that the first panel and the base are stably abutted, thereby maintaining its stability and reliability. Furthermore, due to the buffering effect of the elastic element, the vibration transmission process will not generate an overly strong impact, thereby improving the user's comfort.

[0018] The first panel has a buckle, and the base has a snap-fit ​​hole. The buckle engages with the snap-fit ​​hole and can float relative to the snap-fit ​​hole.

[0019] By adopting the aforementioned technical solution, it can be seen that the design of the buckle on the first panel and the snap-fit ​​hole on the base ensures the structural connection between the first panel and the base. This connection method is more flexible. Since the buckle and the snap-fit ​​hole are snapped together and can float relatively, the first panel is not completely fixed, but can move within a certain range. This floating design allows the first panel to have a certain amount of buffering and movement space when subjected to vibration or other external forces. At the same time, when the vibration unit is working, the first panel can move freely within the floating gap, which makes the vibration effect more obvious and allows the user to feel a more realistic and strong tactile feedback.

[0020] There are multiple elastic elements, which are evenly distributed at the corners of the base.

[0021] Using the aforementioned technical solution, it can be seen that when multiple elastic elements are evenly distributed at the corners of the base, a stable support network is formed. This support network can effectively prevent the base and panel from deforming or displacing when subjected to external forces. Especially when a user touches the panel, if a large force is applied to a certain local area of ​​the panel, the panel may tilt or twist if there is not enough support. By setting multiple elastic elements at the corners of the base, it can be ensured that the panel remains flat when subjected to external forces, avoiding tilting caused by uneven local forces.

[0022] The first panel is also covered by a second panel, which is detachably connected to the base.

[0023] By adopting the aforementioned technical solution, it can be seen that the second panel is directly wrapped around the outside of the first panel, forming a protective barrier. This barrier can effectively block sharp objects, stains, etc. from the external environment from directly contacting the first panel, thereby preventing it from being scratched, contaminated, or damaged, thus extending the service life of the equipment. By detachably connecting the second panel to the base, the overall stability of the structure is increased, making it more robust and durable, improving the structure's impact resistance, and enabling it to better maintain its shape and function when subjected to external impact.

[0024] The second panel has a touch area corresponding to the light guide column, and the second panel is thinned at the position corresponding to the touch area.

[0025] Using the aforementioned technical solution, it can be seen that when the position corresponding to the light guide column on the second panel is thinned, the material thickness of these areas is reduced, thereby reducing the obstruction of light when passing through these areas. The thinning process allows light to pass through the second panel more easily and reach the user's line of sight, improving the overall light transmittance of the touch feedback structure. This allows the user to see the visual feedback effect more clearly when touching the panel, thereby enhancing the user's operating experience.

[0026] The beneficial effects of this utility model are: (1) the light guide can not only enhance the sensing signal but also guide the light; (2) by setting the vibration gap X, the vibration unit is provided with the necessary displacement space, generating sufficient amplitude and vibration frequency, thereby enhancing the interactive experience between the user and the device. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the installation structure of this utility model;

[0028] Figure 2 It is a spring suspension structure;

[0029] Figure 3 yes Figure 2 A magnified view of a section at point I.

[0030] In the diagram: 1. Base; 11. First panel; 12. Second panel; 13. Light guide; 14. Capacitor element; 15. Light-emitting unit; 16. Vibrating element; 17. Spring; 111. First buckle; 122. Touch part; 3. PCB board. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] Example 1:

[0033] like Figures 1 to 3 As shown, a touch feedback structure includes a first panel 11 and a base 1. The first panel 11 and the base 1 are detachably connected. A PCB board 3 is mounted on the base 1. The PCB board 3 has a capacitor element 14. A light guide 13 is provided between the first panel 11 and the capacitor element 14. A light-emitting unit 15 is provided on the PCB board 3. The light-emitting unit 15 is positioned close to the light guide 13 so that the light emitted by the light-emitting unit 15 is conducted to the first panel 11 through the light guide 13. Both the light-emitting unit 15 and the capacitor element 14 are electrically connected to the PCB board 3.

[0034] Furthermore, when the first panel 11 is touched, the capacitive element detects a signal. A light guide 13 is placed between the capacitive element 14 and the first panel 11. The light guide 13 amplifies the signal, and the amplified signal is transmitted to the capacitive element 14 on the PCB board 3, thereby enhancing the strength and reliability of the sensing signal. Furthermore, a light-emitting unit 15 is placed on the PCB board 3 near the light guide 13. When the capacitive element 14 detects a touch signal, the light-emitting unit 15 can be triggered to emit light simultaneously. The light is transmitted to the first panel 11 through the light guide 13. The light-emitting unit 15 is close to the light guide 13, allowing light to directly enter the light guide 13 from the light-emitting unit 15, reducing light loss and scattering, providing visual feedback to the user, and enhancing the interactivity between the user and the device. Integrating the capacitive element 14 and the light-emitting unit 15 on the PCB board 3 simultaneously effectively simplifies the internal structure of the device.

[0035] Furthermore, it can be seen that when there is only air between the capacitive sensor and the contact surface, the capacitance value is relatively small. However, after adding a solid element, a new capacitance is formed between the solid element and the plate of the capacitive element. This capacitance is connected in series with the air capacitance. Since the dielectric constant of the solid element is usually much larger than that of air, the light guide 13 can amplify the signal, so the newly added capacitance value will increase significantly, and thus the overall capacitance value will also increase.

[0036] Preferably, there are several capacitor elements 14, and several touch portions 122 are provided on the first panel 11, with each capacitor element 14 corresponding to a touch portion 122, so that when a person touches a touch portion 122, the corresponding capacitor element 14 detects a sensing signal.

[0037] By adopting the aforementioned technical solution, multiple touch units 122 can be set on a switch panel to control multiple different electrical appliances, and the multiple touch units 122 do not interfere with each other.

[0038] Preferably, the commonly used light guide material is a plastic insulating material with good light guiding performance. It is best to be a light-transmitting material or a material with light amplification function. In this embodiment, the light guide 13 can be a fluorescent PC material or a PMMA material.

[0039] Preferably, the capacitor element can be copper foil.

[0040] Preferably, the light-emitting unit 15 can be a light-emitting diode or a transistor, and can be monochrome, dual-color, or color-changing. Multiple colors can be used to distinguish different electrical appliances according to the specific needs of the switch. This function will not be described in detail in this embodiment.

[0041] Preferably, the first panel 11 and the base 1 are made of insulating materials, such as resin or PC.

[0042] Preferably, the base 1 can be a polygonal structure. In this embodiment, a quadrilateral is used as an example. Four sets of first snap-fit ​​holes are evenly and symmetrically arranged on each side of the base 1. The first panel 11 has four sets of first buckles 111 corresponding to the first snap-fit ​​holes. The first snap-fit ​​holes and the first buckles 111 are detachably connected. In this utility model, only the snap-fit ​​method is used as an example. This connection method can achieve a stable connection and leave space for the vibration of the vibration element 16.

[0043] Preferably, the light-emitting unit 15 is placed on any side of the light guide 13 so that some light rays pass through the light guide column and are directed to the first panel 11; or, the light-emitting unit 15 is placed between the light guide 13 and the PCB board 3, and the light guide is a light guide sleeve.

[0044] Preferably, the light-emitting unit 15 can be placed on one side of the light guide 13, which helps to reduce the scattering and loss of light in the air and improve the light transmission efficiency, thereby avoiding interference with the capacitor element 14. Alternatively, when the light-emitting unit 15 is placed between the light guide 13 and the PCB board 3, the light can directly enter the light guide 13 from the light-emitting unit 15 without passing through an additional path or medium, thereby ensuring the maximum light transmission efficiency. Both installation methods allow the light to be transmitted to the light guide 13 more quickly and illuminate the entire touch area when the user touches the first panel 11, providing the user with faster visual feedback. Furthermore, as a component on the PCB board 3, the light-emitting unit 15 is tightly connected to the light guide 13 and the PCB board 3, which can enhance the stability of the entire structure. This design helps to reduce the risk of loosening or damage due to vibration or impact.

[0045] Example 2:

[0046] Based on Embodiment 1, a vibration unit is also provided between the PCB board 3 and the first panel 11. The vibration unit is electrically connected to the PCB board 3 and contacts the first panel 11. There is a floating gap X between the base 1 and the first panel 11.

[0047] Furthermore, it can be seen that the vibration unit is connected to the PCB board 3 via an electrical connection. When the capacitor element 14 receives a touch signal, the PCB board 3 will drive the vibration unit to vibrate. This vibration effect directly acts on the first panel 11. When the user touches the panel, they can feel obvious vibration feedback. By setting the vibration gap X, the necessary displacement space is provided for the vibration unit. When the vibration unit is working, it can move freely within this gap, generating sufficient amplitude and vibration frequency, thereby enhancing the interactive experience between the user and the device. Without the vibration gap X, the vibration unit may be restricted by the base 1 or the first panel 11 and cannot vibrate fully, thus affecting the vibration effect.

[0048] Preferably, the vibration unit can be a linear motor.

[0049] Preferably, the vibration unit is placed at the center of PCB board 3.

[0050] Understandably, when the vibration unit is located at the center of the PCB board 3, the generated vibration can spread evenly in all directions. This even vibration propagation makes the vibration of the entire panel more consistent when the first panel 11 receives the vibration, avoiding the situation where the local vibration is too strong or too weak, thereby improving the user experience.

[0051] Preferably, the base 1 is provided with an elastic element 17, which abuts between the base 1 and the first panel 11.

[0052] It is understandable that when the vibration unit generates vibration, the elastic element 17 can effectively transmit the vibration to the first panel 11, allowing the user to feel obvious vibration feedback. At the same time, the elastic element 17 forms a stable support structure between the base 1 and the first panel 11. This support can ensure that the first panel 11 and the base 1 are stably in contact, thereby maintaining its stability and reliability. Furthermore, due to the buffering effect of the elastic element 17, the vibration transmission process will not generate an overly strong impact, thereby improving the user's comfort.

[0053] Preferably, multiple elastic elements 17 are provided, and the multiple elastic elements 17 are evenly distributed at the corner positions of the base 1.

[0054] Understandably, when multiple elastic elements 17 are evenly distributed at the corners of the base 1, a stable support network is formed. This support network can effectively prevent the base 1 and the panel from deforming or displacing when subjected to external forces. Especially when a user touches the panel, if a large force is applied to a certain local area of ​​the panel, the panel may tilt or twist if there is not enough support. By setting multiple elastic elements 17 at the corners of the base 1, it can be ensured that the panel remains flat when subjected to external forces, avoiding tilting caused by uneven local forces.

[0055] Preferably, the elastic element 17 can be a spring, a silicone element, or a rubber element.

[0056] Preferably, in this embodiment, given that the base 1 is quadrilateral, four springs are provided at the four corners.

[0057] Example 3:

[0058] Based on Embodiment 1, the first panel 11 is further covered by a second panel 12, which is detachably connected to the base 1.

[0059] Furthermore, the second panel 12 directly wraps around the outside of the first panel 11, forming a protective barrier. This barrier can effectively prevent sharp objects, stains, etc. from the external environment from directly contacting the first panel 11, thereby preventing it from being scratched, contaminated, or damaged, thus extending the service life of the equipment. By detachably connecting the second panel 12 to the base 1, the overall stability of the structure is increased, making it more robust and durable, improving the structure's impact resistance, and enabling it to better maintain its shape and function when subjected to external impact.

[0060] Preferably, the second panel 12 is made of an insulating material, such as resin or PC.

[0061] Furthermore, the second panel 12 is provided with a touch portion 122 corresponding to the light guide post, and the thickness of the touch portion 122 is thinner than the thickness of the second panel 12.

[0062] Understandably, when the area corresponding to the light guide pillar on the second panel 12 is thinned, the material thickness in these areas is reduced, thereby reducing the obstruction of light when passing through these areas. The thinning process allows light to pass through the second panel 12 more easily and reach the user's line of sight, improving the overall light transmittance of the touch feedback structure. This allows the user to see the visual feedback effect more clearly when touching the panel, thereby enhancing the user's operating experience.

[0063] Preferably, in this embodiment, the second panel 12 is provided with three touch parts 122, which are used to connect three sets of switch settings for different products respectively. In actual use, there is no specific limit on the number.

[0064] Preferably, the touch part 122 can also be designed as a transparent key, which makes it easier for light to pass through.

[0065] Preferably, four sets of second snap-fit ​​holes are evenly and symmetrically arranged on each side of the base 1. The second panel 12 has four sets of second buckles corresponding to the second snap-fit ​​holes. The second snap-fit ​​holes and the second buckles are detachably connected. In this utility model, only the snap-fit ​​method is used as an example. Unlike the first panel 11, the second panel 12 should be fixedly installed with the base 1. Therefore, the detachable connection can also be achieved by the cooperation of bolts and nuts.

[0066] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A touch feedback structure, comprising a first panel and a base, wherein the base is connected to the first panel, characterized in that, A PCB board is mounted on the base. The PCB board has a capacitor element. A light guide is provided between the first panel and the capacitor element. A light-emitting unit is provided on the PCB board. The light-emitting unit is arranged correspondingly to the capacitor element. The light-emitting unit is arranged close to the light guide so that the light emitted by the light-emitting unit is conducted to the first panel through the light guide. Both the light-emitting unit and the capacitor element are electrically connected to the PCB board.

2. The touch feedback structure according to claim 1, characterized in that, There are several capacitor elements, and several touch areas are provided on the first panel. Each capacitor element corresponds to one of the touch areas, so that when a person touches the touch area with their finger, the corresponding capacitor element detects a sensing signal.

3. A touch feedback structure according to claim 1 or 2, characterized in that, The light-emitting unit is placed on either side of the light guide; or, the light-emitting unit is placed between the light guide and the PCB board.

4. A touch feedback structure according to claim 1 or 2, characterized in that, A vibration unit is also provided between the PCB board and the first panel. The vibration unit is electrically connected to the PCB board and contacts the first panel. The first panel is floatingly mounted on the base so that there is a floating gap X between the base and the first panel.

5. A touch feedback structure according to claim 4, characterized in that, The vibration unit is placed at the center of the PCB board.

6. The touch feedback structure according to claim 4, characterized in that, The base is provided with an elastic element, which abuts against the base and the first panel.

7. A touch feedback structure according to claim 4, characterized in that, The first panel is provided with a buckle, and the base is provided with a snap-fit ​​hole. The buckle snaps into the snap-fit ​​hole and can float relative to the snap-fit ​​hole.

8. A touch feedback structure according to claim 6, characterized in that, The elastic element is provided in multiple ways, and the multiple elastic elements are evenly distributed at the corners of the base.

9. A touch feedback structure according to claim 1 or 2, characterized in that, The first panel is also covered by a second panel, which is detachably connected to the base.

10. A touch feedback structure according to claim 9, characterized in that, The second panel is provided with a touch portion corresponding to the light guide, and the second panel is thinned at the position corresponding to the touch portion.

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