Knob screen capable of being pressed

Abstract

The utility model discloses a knob screen capable of being pressed, which relates to the technical field of knob screens and comprises a TFT (thin film transistor) panel, a rotary pressing structure, an encoder and a PCBA (printed circuit board assembly) board. The rotating pressing structure comprises a rotating part, a fixing part and a pressing part, the pressing part is fixed to the TFT panel, the rotating part and the pressing part are connected with the fixing part, the pressing part can move relative to the fixing part, and the rotating part can rotate relative to the fixing part; the encoder can sense the position of the rotating part, the encoder further makes contact with the pressing part, and the encoder can be pressed and is used for pressing the encoder by pressing the TFT panel; and the PCBA board is connected with the fixing part and the encoder, and the PCBA board is electrically connected with the TFT panel. The encoder capable of being pressed is used for sensing signals generated by rotation of the rotating part and pressing of the TFT panel, the pressing function of the knob screen is achieved through simple contact pressing, and the design of the knob screen is more concise.

Description

Technical Field

[0001] The present application relates to the technical field of knob screens, and in particular to a pressable knob screen. Background Art

[0002] Knob screens are widely used in smart homes, smart wearable devices, smart cars and other fields. Due to their stylish and beautiful appearance design, simple and intuitive display mode and easy-to-understand operation mode, knob screens are becoming more and more common in today's life.

[0003] At present, in order to increase the operation function of the knob screen, while being able to rotate and control, adding a press control so that the knob screen can distinguish more instructions, the utility model patent announcement number CN209169026U discloses a knob integrating rotation, pressing and display functions, including a rotating structure, a display screen assembly, a PCBA board and a pressing structure, wherein the rotating structure, the pressing structure and the display screen assembly are all electrically connected to the PCBA board, the PCBA board is placed inside the rotating structure, and the display screen assembly includes a lens glass, a display module, and a display base, and the display module and the display base are fixed by double-sided adhesive. The utility model integrates the functions of rotation, pressing and display through the combination of a rotating structure, a pressing structure and a display screen assembly, and the inner ring of the outer ring of the knob is designed with a concave-convex groove to improve the operating feel. The design of the positioning sleeve, on the one hand, positions the knob switch bracket on the knob fixing bracket, and ensures that the knob outer ring and other components reciprocate along the direction of the positioning sleeve, and on the other hand, the reset spring on the positioning sleeve can make the knob outer ring and other components return to reset in time after being pressed, thereby improving the operating feel. The pressing structure of the knob screen includes a positioning sleeve column with a spring and other structures. The design is too complicated, resulting in the knob screen having more parts, being heavier in weight, and being bulky. Summary of the invention

[0004] In order to solve the problem that the pressing structure of the knob screen is too complicated, the present application provides a pressable knob screen.

[0005] The present application provides a pressable knob screen that adopts the following technical solution:

[0006] A pressable knob screen comprises a TFT panel, a rotating and pressing structure, an encoder and a PCBA board; the rotating and pressing structure comprises a rotating part, a fixed part and a pressing part, the pressing part is fixed to the TFT panel, the rotating part and the pressing part are connected to the fixed part, the pressing part can move relative to the fixed part, and the rotating part can rotate relative to the fixed part; the encoder can sense the position of the rotating part, the encoder is also in contact with the pressing part, the encoder can be pressed, and is used to press the encoder by pressing the TFT panel; the PCBA board is connected to the fixed part and the encoder, and the PCBA board is electrically connected to the TFT panel.

[0007] By adopting the above technical solution, the encoder is a device that converts rotational or linear displacement into an electrical signal, which is usually used to measure parameters such as speed, angle, and position. The working principle of the encoder is to use physical effects such as magnetism, light, and electricity to convert mechanical quantities into processable electrical signals. The encoder can be non-contact, and the encoder receives signals through a magnetoelectric or photoelectric effect encoder. The encoder can sense the rotation position of the rotating part, thereby generating an electrical signal correspondingly and transmitting it to the PCBA board. The PCBA board can control the TFT panel according to the electrical signal, so that the TFT panel displays the corresponding content according to the different rotation positions. Since the outside world presses the knob screen, it will press on the TFT panel. Therefore, the TFT panel is fixed to the pressing part, and the pressing part contacts the encoder, which can transfer the pressing from the TFT panel to the encoder, so that the encoder is pressed. Through the pressable encoder, a simple pressing design is realized, and a complex pressing structure is avoided, so that the knob screen is lighter and more compact, and it is conducive to improving the production and installation efficiency of the knob screen.

[0008] Optionally, it also includes a base, which includes a bottom plate and a side ring, the bottom plate is arranged at one end of the side ring, and the PCBA board is arranged in the side ring.

[0009] By adopting the above technical solution, the base can protect the PCBA board from the outside and provide a fixing structure for the knob screen. The base is connected to the fixed position, so that the knob screen can be easily fixed at the specified position. The PCBA board is fixed in the side circle, and the bottom plate is fixed at one end of the side circle. There is a certain distance between the PCBA board and the bottom plate, so that the electronic components on the PCBA board will not contact the bottom plate, thereby avoiding damage to the PCBA board and ensuring the normal operation of the knob screen.

[0010] Optionally, the area of ​​the PCBA board is smaller than the area of ​​the cross section of the side ring.

[0011] By adopting the above technical solution, compared with the area of ​​the cross-section of the side ring, a PCBA board with a smaller area can leave space between the PCBA board and the side ring, making the PCBA board easier to operate during installation or disassembly, which is conducive to improving the production efficiency of the knob screen.

[0012] Optionally, the PCBA board includes a socket, the socket extends toward the bottom plate, the bottom plate is provided with an opening, and the socket extends to the opening.

[0013] By adopting the above technical solution, the socket can connect the PCBA board to an external power supply or device to provide power for the knob screen, or program the internal program of the knob screen through an external device or transmit instructions to the external device through the electrical signal generated by the PCBA board, so that the knob screen can interact with external devices and improve the application scope of the knob screen.

[0014] Optionally, the number of the sockets is two.

[0015] By adopting the above technical solution, the two sockets can enable the knob screen to be connected to two different external devices at the same time, which is conducive to improving the applicability of the knob screen.

[0016] Optionally, the TFT panel has a positioning block, the rotary pressing structure has a positioning groove, and the positioning block and the positioning groove fit together to limit the relative position of the TFT panel and the rotary pressing structure.

[0017] By adopting the above technical solution, since the knob screen is usually circular, it is easier to cause position deviation between the TFT panel and the rotary pressing structure. The positioning block is set asymmetrically so that the TFT panel can only be connected to the rotary pressing structure at a specified position, eliminating the alignment process during installation.

[0018] Optionally, the fixing portion is provided with a card block, the PCBA board is provided with a card interface, the card block and the card interface match each other, there are multiple card blocks, and the card blocks include at least two different card blocks.

[0019] By adopting the above technical solution, the encoder and the rotary pressing structure need to maintain consistent relative positions, otherwise the encoder will recognize wrong information. Therefore, by providing different card blocks on the fixed part, the PCBA board and the rotary pressing structure can maintain consistent relative positions, so that the encoder can accurately recognize the information transmitted by the rotary pressing structure.

[0020] Optionally, the pressing portion has a connection port for connecting the TFT panel and the PCBA board.

[0021] By adopting the above technical solution, since the PCBA board needs to be connected to the TFT panel, but there is a rotating pressing structure between the two, a connection port is opened on the rotating pressing structure so that the PCBA board and the TFT panel can be connected using components such as wires, so that the TFT panel can be controlled by the PCBA board.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. Use a pressable encoder as the sensor device of the knob screen, so that the knob screen can sense the signal generated by the rotation of the knob, and can also sense the signal generated by pressing, and realize the pressing function of the knob screen through simple contact and pressing, making the design of the knob screen more concise;

[0024] 2. By keeping a certain distance between the PCBA board and the base plate, the electronic components on the PCBA board will not be damaged by touch. The socket on the PCBA board can extend through the opening of the base plate, so that external devices can connect to the PCBA board through the socket, and the knob screen can be connected through the base plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0026] Figure 2 is a schematic diagram of the explosion structure of an embodiment of the present application;

[0027] Figure 3 Schematic diagram of the exploded structure of the TFT panel and the rotating pressing structure of the embodiment of the present application;

[0028] Figure 4 This is a schematic diagram of the overall structure of the PCBA board and the base in the embodiment of the present application.

[0029] Figure 5 It is a schematic diagram of the exploded structure of the PCBA board and the base plate of the embodiment of the present application.

[0030] Figure numerals: 1. TFT panel; 11. Positioning block; 2. Rotating and pressing structure; 21. Rotating part; 22. Fixing part; 23. Pressing part; 24. Positioning groove; 25. Card block; 26. Connecting port; 3. Encoder; 4. PCBA board; 41. Socket; 42. Card interface; 5. Base; 51. Bottom plate; 52. Side ring; 53. Opening. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1 -Attached Figure 5 , further details of this application are given.

[0032] A pressable knob screen, see Figures 1 to 3, including a TFT panel 1, a rotary pressing structure 2, an encoder 3, a PCBA board 4 and a base 5; the TFT panel 1 is installed on the top of the knob screen, and is a display component of the knob screen for displaying information. A rotary pressing structure 2 is installed below the TFT panel. The rotary pressing structure 2 includes a rotating part 21, a fixing part 22 and a pressing part 23. The pressing part 23 connects the TFT panel 1 and the encoder 3, so that the operator can transmit the pressing to the encoder 3 through the pressing part 23 when pressing the TFT panel 1, thereby realizing the pressing function of the knob screen. A positioning block 11 is provided on one side of the TFT panel 1 close to the pressing part 23, and a positioning groove 24 is provided on one side of the pressing part 23 close to the TFT panel 1. The positioning block 11 can fit with the positioning groove 24, so that the TFT panel 1 is relatively fixed to the pressing part 23. Position fixed connection; the fixed part 22 is a relatively fixed structure on the rotating and pressing structure 2, the fixed part 22 is connected to the PCBA board 4, and is used to support the rotating part 21 and the pressing part 23. The rotating part 21 is the outermost rotating structure for the user to rotate. The rotating part 21 can be connected to the encoder 3 through the magnetoelectric effect, so that the encoder 3 can read the position information transmitted by the rotating part 21 in a non-contact manner, and generate an electrical signal according to the position information and transmit it to the PCBA board 4, so that the TFT panel 1 displays the corresponding information under the control of the PCBA board 4. A connecting port 26 is also provided on the rotating and pressing structure 2. Since the TFT panel 1 needs to be controlled by the PCBA board 4, a connecting port 26 is provided, so that the PCBA board 4 can be connected to the TFT panel 1 through the wire passing through the connecting port 26.

[0033] Reference Figures 3 to 5 , a card interface 42 of the PCBA board 4, a card block 25 is provided below the fixed part 22, the card interface 42 and the card block 25 are matched, so that the rotary pressing structure 2 can be fixed to the PCBA board 4, the card block 25 has two forms, and the corresponding card interface 42 also has two forms, so that the rotary pressing structure 2 and the PCBA board 4 can only be connected in a fixed direction, so that the encoder 3 can accurately identify the position of the rotating part 21; the base 5 includes a bottom plate 51 and a side ring 52, the PCBA board 4 is installed in the middle of the side ring 52, and the bottom plate 51 is installed at the end of the side ring 52, so that there is an end distance between the bottom plate 51 and the PCBA board 4, so that the electronic components on the PCBA board 4 can be protected, and two sockets 41 are also provided on the PCBA board 4, the sockets 41 extend to the bottom plate 51, and an opening 53 is opened on the bottom plate 51, and the opening 53 is used to enable the socket 41 to connect to the outside of the knob screen, and the two sockets 41 can enable the knob screen to connect to different devices at the same time, thereby improving the applicability of the knob screen.

[0034] The implementation principle of the embodiment of the present application is as follows: when installing the knob screen, the base 5 can be fixed first, and then the PCBA board 4 and the encoder 3 can be fixed in the base 5, and then the rotary pressing structure 2 can be fixed through the PCBA board 4, and the TFT panel 1 can be fixed on the rotary pressing structure 2; when using the knob screen, by rotating the rotating part 21, the encoder 3 can sense the rotating part 21 at different positions, so that the encoder 3 can generate different electrical signals according to the different positions of the rotating part 21, and transmit the electrical signals to the PCBA board 4, and when the knob screen is pressed, after the TFT panel 1 is pressed, the pressing is transmitted to the encoder 3 through the pressing part 23, and the encoder 3 is pressed. After the corresponding electrical signal is generated and transmitted to the PCBA board 4, by receiving the electrical signal, the PCBA board 4 can control the TFT panel 1 to display different information through electrical connection, or transmit instructions to external devices through the socket 41, thereby completing the operation control process of the knob screen.

[0035] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pressable knob screen, characterized in that: include: TFT panel (1); A rotating and pressing structure (2), comprising a rotating part (21), a fixing part (22) and a pressing part (23), wherein the pressing part (23) is fixed to the TFT panel (1), the rotating part (21) and the pressing part (23) are connected to the fixing part (22), the pressing part (23) is movable relative to the fixing part (22), and the rotating part (21) is rotatable relative to the fixing part (22); An encoder (3) capable of sensing the position of the rotating portion (21), the encoder (3) being in contact with the pressing portion (23), the encoder (3) being pressable, and being used to press the encoder (3) by pressing the TFT panel (1); A PCBA board (4) is connected to the fixing portion (22) and the encoder (3), and the PCBA board (4) is electrically connected to the TFT panel (1).

2. The pressable knob screen according to claim 1, characterized in that: The device also comprises a base (5), wherein the base (5) comprises a bottom plate (51) and a side ring (52), wherein the bottom plate (51) is arranged at one end of the side ring (52), and the PCBA board (4) is arranged in the side ring (52).

3. The pressable knob screen according to claim 2, characterized in that: The area of ​​the PCBA board (4) is smaller than the area of ​​the cross section of the side ring (52).

4. The pressable knob screen according to claim 2, characterized in that: The PCBA board (4) comprises a socket (41), the socket (41) extending towards the bottom plate (51), the bottom plate (51) being provided with an opening (53), and the socket (41) extending to the opening (53).

5. The pressable knob screen according to claim 4, characterized in that: The number of the sockets (41) is two.

6. The depressible knob screen according to claim 1, characterized in that: The TFT panel (1) has a positioning block (11), the rotating pressing structure (2) has a positioning groove (24), and the positioning block (11) and the positioning groove (24) fit together to define the relative position of the TFT panel (1) and the rotating pressing structure (2).

7. The pressable knob screen according to claim 1, characterized in that: The fixing portion (22) is provided with a card connection block (25), the PCBA board (4) is provided with a card interface (42), the card connection block (25) and the card interface (42) are matched, the number of the card connection blocks (25) is multiple, and the card connection blocks (25) include at least two different card connection blocks (25).

8. The pressable knob screen according to claim 1, characterized in that: The pressing portion (23) has a connection port (26), and the connection port (26) is used to connect the TFT panel (1) and the PCBA board (4).

Images