Capacitive glass lifting switch

Abstract

The utility model relates to the field of automobile electronic control, in particular to a capacitive glass direction switch, which comprises a lower mounting unit and an upper mounting unit movably arranged on the lower mounting unit, the upper mounting unit is provided with a touch key and a capacitive touch film, the lower mounting unit is provided with a circuit board and a micro deformation structure, and the circuit board is provided with a touch screen. A transmission assembly is arranged between the upper mounting unit and the lower mounting unit, the transmission assembly is matched with the tiny deformation structure to change capacitance, and the capacitive touch film is electrically connected with the circuit board. Through mutual cooperation of the transmission assembly and the micro-deformation structure, capacitance can be changed, when a user only touches, lifting cannot be controlled through a switch, and only when the user touches and presses the upper mounting unit, the user can control lifting only after the transmission assembly applies certain pressure to the micro-deformation structure and the capacitance is further changed; therefore, misoperation is prevented.

Description

Technical Field

[0001] The present application relates to the technical field of automobile electronic control, and in particular to a capacitive glass lifting switch. Background Art

[0002] With the development of society, science and technology are also constantly improving. The switches commonly used in life have gradually changed from traditional mechanical switches to simple touch switches. In the application of car accessories switches, the demand for seamless high-tech switches is increasing, and traditional mechanical switches are becoming less and less in the car.

[0003] In the related technology, the mainstream of car window switches is still the traditional mechanical switch, and the user triggers the corresponding lifting and lowering operation by pressing the button on the switch. However, this design method is not only easily affected by environmental factors, causing contact wear or poor contact, but also has problems such as insufficient operation sensitivity and limited service life.

[0004] In addition, although some capacitive touch switches have appeared on the market, most of them have complex structures, high manufacturing costs, and still have many shortcomings in practical applications. For example, they are easily affected by external interference and cause misoperation; some have unreasonable structural designs, resulting in a greatly reduced service life. Utility Model Content

[0005] In order to improve the switch sensitivity and reduce the misoperation caused by accidental touch, the present application provides a capacitive glass lifting switch.

[0006] The capacitive glass lifting switch provided in this application adopts the following technical solution:

[0007] A capacitive glass lifting switch comprises a lower mounting unit and an upper mounting unit movably arranged on the lower mounting unit, the upper mounting unit is provided with a touch button and a capacitive touch film, the lower mounting unit is provided with a circuit board and a micro-deformation structure, a transmission component is arranged between the upper mounting unit and the lower mounting unit, the transmission component cooperates with the micro-deformation structure to change the capacitance, and the capacitive touch film is electrically connected to the circuit board.

[0008] By adopting the above technical solution, the transmission component and the micro-deformation structure cooperate with each other, so that when the user touches the button alone, the product will not be activated. Only when the touch applies pressure to the button at the same time, the transmission component will apply pressure to the micro-deformation structure, causing the capacitance to further change. The product will operate normally and can accurately filter out the behavior of accidentally touching the touch button.

[0009] Optionally, the lower mounting unit includes a shell, and the circuit board is accommodated in the shell. A limiting sleeve extending toward the circuit board is provided in the middle of the shell. The transmission assembly includes a transmission rod provided on the upper mounting unit, and the transmission rod passes through the limiting sleeve and extends vertically toward the circuit board. A mounting hole is provided at one end of the transmission rod facing the circuit board. The transmission assembly also includes a vertex rubber provided in the mounting hole. The upper mounting unit is connected to one end of the shell.

[0010] By adopting the above technical solution, when the user applies pressure to the touch button, the transmission rod can drive the apex rubber to move, so that the apex rubber applies pressure to the micro-deformation structure, thereby changing the capacitance. The housing plays a protective role for components such as circuit boards.

[0011] Optionally, the lower mounting unit further includes a base, which is detachably connected to an end of the shell away from the upper mounting unit, and a through hole is formed on the base, through which the pins of the circuit board extend outward.

[0012] By adopting the above technical solution, the base provides bottom support for the circuit board, and the pins extend outward through the through holes to facilitate the connection between the circuit board and other external components.

[0013] Optionally, the upper mounting unit includes a support frame, which is provided with a first connecting pin on all four sides, and a first card slot is provided on the first connecting pin. The surface of the lower mounting unit is provided with a matching first card block, and the height of the first card slot is greater than the height of the first card block.

[0014] By adopting the above technical solution, the support frame provides bottom support for the touch button and the capacitive touch film. The cooperation of the first card slot and the first card block is used to connect the support frame to the lower mounting unit and limit the displacement of the support frame in the horizontal direction while allowing the support frame to move in the vertical direction.

[0015] Optionally, the upper mounting unit further includes a decorative frame, which is disposed on a side of the support frame away from the lower mounting unit, and a receiving space with an upper opening is formed between the decorative frame and the support frame, and the touch button and the capacitive touch film are both disposed in the receiving space, and the touch button is close to the opening end.

[0016] By adopting the above technical solution, the setting of the decorative frame is used to provide protection for the touch buttons and the capacitive touch film, and makes the overall structure more compact.

[0017] Optionally, second connecting pins are formed around the decorative frame, a second clamping groove is formed on the second connecting pin, and a matching second clamping block is provided on the surface of the lower mounting unit.

[0018] By adopting the above technical solution, the second card slot and the second card block are cooperatively arranged to connect the decorative frame with the lower mounting unit, thereby improving the overall connection stability.

[0019] Optionally, a rubber pad is provided between the upper mounting unit and the lower mounting unit, one end of the rubber pad abuts against the lower surface of the upper mounting unit, and the other end of the rubber pad abuts against the upper surface of the lower mounting unit.

[0020] By adopting the above technical solution, the setting of the rubber pad can play a buffering role when the user presses the touch button, reduce the wear between the components, extend the service life, and improve the user's operating experience.

[0021] Optionally, it also includes a light indication component, which includes an LED installed on a circuit board, and a light guide that cooperates with the LED, the light guide includes a first part and a second part, the first part is installed on the upper mounting unit and contacts the capacitive touch film, and the second part extends downward to the lower mounting unit and corresponds to the LED.

[0022] By adopting the above technical solution, the light indication component is used to provide certain indications in poor light conditions such as at night, so that users can easily identify and operate.

[0023] Optionally, a vibration module is further provided between the upper mounting unit and the lower mounting unit, and the vibration module is connected to the capacitor plate.

[0024] By adopting the above technical solution, the vibration module is configured to provide the user with intuitive operation feedback when the user operates the switch, thereby improving the user experience.

[0025] Optionally, the touch button includes two pressing parts distributed on the left and right, and a partitioning part arranged between the two pressing parts, and the partitioning part is specifically an auxiliary protrusion protruding upward.

[0026] By adopting the above technical solution, the setting of the auxiliary protrusion makes it convenient for the user to identify the button position through the touch of the finger, thereby realizing blind operation.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The transmission component and the micro-deformation structure cooperate with each other to change the capacitance, so that when the user only touches, the lifting and lowering cannot be controlled by the switch. Only when the user touches and presses the upper mounting unit at the same time, so that the transmission component applies a certain pressure to the micro-deformation structure to cause the capacitance to change further, the user can control the lifting and lowering, thereby preventing misoperation;

[0029] 2. Through the setting of the light indication component, the touch button can emit a certain indicator light in a dark environment such as at night, which is convenient for users to operate;

[0030] 3. Through the setting of the vibration module, it can provide users with intuitive operation feedback and improve user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the main explosion structure of an embodiment of the present application.

[0032] Figure 2 It is a schematic diagram of the main structure of the embodiment of the present application from the front.

[0033] Figure 3 It is a schematic diagram of the main body cross-sectional structure of the embodiment of the present application.

[0034] Figure numerals: 1. lower mounting unit; 11. shell; 111. limiting sleeve; 112. first clamping block; 113. second clamping block; 12. base; 2. upper mounting unit; 21. support frame; 211. first connecting pin; 22. decorative frame; 221. second connecting pin; 3. touch button; 31. pressing part; 32. partition; 4. capacitive touch film; 5. circuit board; 6. micro-deformation structure; 7. transmission assembly; 71. transmission rod; 72. vertex rubber; 8. rubber pad; 9. light indication assembly; 91. LED; 92. light guide; 10. vibration module. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-3 This application is described in further detail.

[0036] Embodiment 1

[0037] The present application embodiment discloses a capacitive glass lifting switch. Figure 1 A capacitive glass lifting switch includes an upper mounting unit 2 and a lower mounting unit 1 which are arranged vertically. The upper mounting unit 2 includes a support frame 21 and a decorative frame 22. The decorative frame 22 is a roughly rectangular frame structure and is arranged on a side of the support frame 21 away from the lower mounting unit 1. The support frame 21 is a roughly rectangular plate structure that matches the decorative frame 22. An accommodation space with an upper opening is enclosed between the decorative frame 22 and the support frame 21. A touch button 3 and a capacitive touch film 4 are arranged in the accommodation space, wherein the capacitive touch film 4 is close to the support frame 21, and the touch button 3 is close to the opening of the accommodation space and is fixedly connected to the support frame 21.

[0038] Further, first connecting pins 211 are formed around the support frame 21, each first connecting pin 211 is parallel to the surface of the corresponding lower mounting unit 1, and a first clamping groove is formed on each first connecting pin 211. The surface of the lower mounting unit 1 is provided with a matching first clamping block 112, and the first clamping block 112 can be clamped in the first clamping groove to clamp the support frame 21 to the lower mounting unit 1. Preferably, the width of the first clamping groove is equal to the width of the first clamping block 112, and the height of the first clamping groove is greater than the height of the first clamping block 112, so as to form a structure in which the support frame 21 is restricted from moving left and right, but can move up and down.

[0039] Similarly, second connecting pins 221 are formed around the decorative frame 22 , and second card slots are provided on the second connecting pins 221 . A matching second card block 113 is provided on the lower mounting unit 1 to connect the decorative frame 22 with the lower mounting unit 1 .

[0040] Reference Figure 1 and Figure 3 The lower mounting unit 1 includes a housing 11 and a base 12. A space is also formed between the housing 11 and the base 12. A circuit board 5 is arranged in the space. The capacitive touch film 4 has pins, and the pins connect the capacitive touch film 4 to the circuit board 5. It can be understood that holes for the pins to penetrate should be formed on the support frame 21 and the housing 11. Preferably, a chip with a built-in capacitance detection module is arranged on the circuit board 5 to be able to sense capacitance changes.

[0041] With the above structure, when the user touches the touch button 3, the inductive capacitance formed by the finger and the ground is connected in parallel with the inductive capacitance formed by the touch button 3 and the ground, resulting in an increase in the total inductive capacitance value, and the circuit board 5 can detect the change in the inductive capacitance value.

[0042] Furthermore, a transmission assembly 7 is provided on the upper mounting unit 2, one end of which extends to the circuit board 5, and a micro-deformation structure 6 is correspondingly provided on the circuit board 5. When the user applies a pressing force to the touch button 3, the upper mounting unit 2 applies the pressing force to the micro-deformation structure 6 through the transmission assembly 7, so that the capacitance value further changes. When the circuit board 5 further detects the change in the capacitance value, it outputs a corresponding signal, thereby controlling the lifting and lowering of the glass.

[0043] Specifically, the micro-deformation structure 6 is configured to be composed of a copper-exposed area formed on the circuit board 5 and a structural metal sheet disposed above the copper-exposed area. The structural metal sheet and the copper-exposed area form a parallel plate capacitor. According to the capacitance calculation formula:

[0044]

[0045] It can be seen that when the distance between the structural metal sheet and the exposed copper area changes, the capacitance value will change. The transmission component 7 can apply a downward external force to the structural metal sheet to change the capacitance.

[0046] Reference Figure 2 and Figure 3 The transmission assembly 7 includes a limit sleeve 111 formed on the support frame 21 and extending vertically toward the circuit board 5. Correspondingly, a limit sleeve 111 is formed on the housing 11, and the transmission rod 71 is inserted into the limit sleeve 111. A mounting hole is provided at one end of the transmission rod 71 facing the circuit board 5, and the transmission assembly 7 also includes a vertex rubber 72 disposed in the mounting hole. When the user presses the touch button 3, the support frame 21 moves downward, the transmission rod 71 slides downward in the limit sleeve 111, and the vertex rubber 72 moves accordingly and applies pressure to the micro-deformation structure 6, thereby achieving a change in capacitance.

[0047] The base 12 is detachably connected to the housing 11 by screws. The circuit board 5 is placed on the base 12. A through hole is provided on the base 12. Pins of the circuit board 5 extend outward through the through hole so as to be connected with external components.

[0048] Embodiment 2

[0049] The embodiment of the present application provides a capacitive glass lifting switch, which adds the setting of a rubber pad 8 on the basis of the above embodiment. Specifically, a rubber pad 8 is provided between the upper mounting unit 2 and the lower mounting unit 1, one end of the rubber pad 8 abuts against the lower surface of the support frame 21, and the other end abuts against the upper surface of the housing 11. The setting of the rubber pad 8 can play a buffering role, reduce the wear between the components, extend the service life, and improve the user's operating experience.

[0050] In addition, the capacitive glass lifting switch also includes a light indication component 9. The light indication component 9 includes an LED 91 mounted on the circuit board 5, and a light guide 92 matched with the LED 91. The light guide 92 is divided into a first part and a second part, the first part is mounted on the upper mounting unit 2 and connected to the capacitive touch film, so as to transmit the light emitted by the LED 91 to a position visible to the user. The second part extends downward to the lower mounting unit 1 and corresponds to the LED 91 to ensure smooth transmission of light. Specifically, a mounting groove extending along the length direction thereof is provided on the support frame 21, the first part is installed in the mounting groove and the upper surface is flush with the upper surface of the support frame 21; a through hole is provided on the housing 11, the second part is integrally formed at one end of the first part and extends vertically downward, close to the circuit board 5 through the through hole, and one end of the second part corresponds to the LED 91. The LED 91 can emit corresponding light, and the light is transmitted to a position close to the touch button 3 through the light guide 92, so as to facilitate user identification and operation in a dark environment such as at night. In coordination therewith, the touch button 3 sets a corresponding mark according to the glass lifting action.

[0051] In addition, a vibration module 10 is provided between the upper mounting unit 2 and the lower mounting unit 1, and the vibration module 10 is connected to the circuit board 5. When the user touches and presses the touch button 3, the vibration module 10 generates corresponding vibration feedback to provide a richer operating experience. This setting allows the user to more intuitively perceive the success or failure of the operation, thereby improving the interactivity and user experience of the product.

[0052] In order to make it more convenient for users to identify the pressing position only by finger touch, the touch button 3 can be specifically configured to consist of two pressing parts 31 distributed left and right along its length direction, and a partition 32 arranged between the two pressing parts 31, and the partition 32 can be specifically configured as an auxiliary protrusion protruding upward. The above two pressing parts 31 are respectively used to control the lifting of the glass. When the user needs to lift the glass, he places his hand on the touch button 3, and determines the position of the two pressing parts 31 that control the lifting according to the position of the auxiliary protrusion.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A capacitive glass lifting switch, characterized in that: The invention comprises a lower mounting unit (1) and an upper mounting unit (2) movably arranged on the lower mounting unit (1), the upper mounting unit (2) being provided with a touch button (3) and a capacitive touch film (4), the lower mounting unit (1) being provided with a circuit board (5) and a micro-deformation structure (6), a transmission component (7) being provided between the upper mounting unit (2) and the lower mounting unit (1), the transmission component (7) and the micro-deformation structure (6) cooperating with each other to change the capacitance, and the capacitive touch film (4) being electrically connected to the circuit board (5).

2. A capacitive glass lifting switch according to claim 1, characterized in that: The lower mounting unit (1) comprises a shell (11), the circuit board (5) is accommodated in the shell (11), a limiting sleeve (111) extending toward the circuit board (5) is provided in the middle of the shell (11), the transmission assembly (7) comprises a transmission rod (71) provided on the upper mounting unit (2), the transmission rod (71) passes through the limiting sleeve (111) and extends vertically toward the circuit board (5), a mounting hole is provided at one end of the transmission rod (71) facing the circuit board (5), the transmission assembly (7) further comprises a vertex rubber (72) provided in the mounting hole, and the upper mounting unit (2) is connected to one end of the shell (11).

3. A capacitive glass lifting switch according to claim 2, characterized in that: The lower mounting unit (1) further comprises a base (12), the base (12) being detachably connected to an end of the housing (11) away from the upper mounting unit (2), the base (12) being provided with a through hole, and the pins of the circuit board (5) extending outward through the through hole.

4. The capacitive glass lifting switch according to claim 1, characterized in that: The upper mounting unit (2) comprises a support frame (21), the support frame (21) is formed with first connecting pins (211) on all four sides, the first connecting pins (211) are provided with first card slots, and the surface of the lower mounting unit (1) is provided with a matching first card block (112), the height of the first card slot being greater than the height of the first card block (112).

5. The capacitive glass lifting switch according to claim 4, characterized in that: The upper mounting unit (2) further comprises a decorative frame (22), the decorative frame (22) being arranged on a side of the support frame (21) away from the lower mounting unit (1), and a receiving space with an upper end opening is formed between the decorative frame (22) and the support frame (21), the touch button (3) and the capacitive touch film (4) are both arranged in the receiving space, and the touch button (3) is close to the open end.

6. The capacitive glass lifting switch according to claim 5, characterized in that: Second connecting pins (221) are formed around the decorative frame (22), a second clamping groove is provided on the second connecting pin (221), and a matching second clamping block (113) is provided on the surface of the lower mounting unit (1).

7. The capacitive glass lifting switch according to claim 1, characterized in that: A rubber pad (8) is provided between the upper mounting unit (2) and the lower mounting unit (1), one end of the rubber pad (8) abuts against the lower surface of the upper mounting unit (2), and the other end abuts against the upper surface of the lower mounting unit (1).

8. The capacitive glass lifting switch according to claim 1, characterized in that: The device also comprises a light indication component (9), the light indication component (9) comprising an LED (91) mounted on a circuit board (5), and a light guide (92) matched with the LED (91), the light guide (92) comprising a first part and a second part, the first part being mounted on the upper mounting unit (2) and in contact with the capacitive touch film, and the second part extending downward to the lower mounting unit (1) and corresponding to the LED (91).

9. The capacitive glass lifting switch according to claim 1, characterized in that: A vibration module (10) is also provided between the upper mounting unit (2) and the lower mounting unit (1), and the vibration module (10) is connected to the capacitor plate.

10. The capacitive glass lifting switch according to claim 1, characterized in that: The touch button (3) comprises two pressing parts (31) distributed on the left and right, and a partition (32) arranged between the two pressing parts (31), wherein the partition (32) is specifically an auxiliary protrusion protruding upward.

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