Panel structure based on motor angle recognition and smart home system

Abstract

The utility model discloses a panel structure based on motor angle recognition, which comprises a middle frame, a panel and a knob which are arranged on the middle frame, and further comprises a motor and a main control board which are arranged in the middle frame, the motor comprises a main shaft, the knob is in transmission connection with the main shaft, and the rotation of the knob drives the main shaft to rotate; the motor is electrically connected with the main control board and can transmit a rotation angle signal of the main shaft to the main control board, and the main control board can receive the rotation angle signal and identify the rotation angle of the knob according to the rotation angle signal. The utility model further discloses an intelligent home system comprising the panel structure. The rotating smoothness of the knob can be improved, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the field of smart home control technology, and in particular to a panel structure and a smart home system based on motor angle recognition. Background Art

[0002] With the development of society, people's living standards are gradually improving, smart homes are becoming more and more practical in daily life, and people's requirements for smart home devices are getting higher and higher. Among them, the rotating screen switch panel is a panel structure frequently used in smart home systems.

[0003] Existing knob screen switch panels generally use encoders to identify the angle when the knob is rotated, but the encoder is limited by the design principle and the number of signals it can identify is limited. It does not work well in scenarios that require relatively fine adjustments. Moreover, when in use, the encoder structure itself will cause a sense of rotation frustration, resulting in a poor user experience, especially for high-end home appliances, where the customer base feels this more clearly. In addition, encoder-based knob screen devices are cumbersome to assemble, and are mostly connected by screws and buckles, which increases the difficulty of assembly and rework and has high production costs. Utility Model Content

[0004] The present application aims to solve one of the technical problems in the related art to a certain extent. To this end, the present application provides a panel structure based on motor angle recognition.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: a panel structure based on motor angle recognition, including a middle frame and a panel and a knob arranged on the middle frame, and also including a motor and a main control board arranged on the middle frame. The motor includes a main shaft, and the knob and the main shaft are connected by transmission and the rotation of the knob drives the main shaft to rotate. The motor is electrically connected to the main control board and can transmit the rotation angle signal of the main shaft to the main control board. The main control board can receive the rotation angle signal and identify the rotation angle of the knob according to the rotation angle signal.

[0006] In this technical solution, the angle of the knob rotation is identified by using the angle detection characteristics of the motor itself, so that the rotation of the knob is not limited by the frequency, and the frustration of the knob rotation using the encoder structure is reduced, making the rotation adjustment process smoother. In addition, the operating feel can be adjusted by adjusting parameters such as the torque of the motor, thereby improving the user experience.

[0007] Furthermore, a mounting groove for mounting the knob is formed on the middle frame, one end of the knob is inserted into the mounting groove and can rotate around its own axis, and a first limiting unit and a second limiting unit are provided between the mounting groove and the knob to limit the axial movement of the knob, thereby ensuring the stability of the assembly of the knob in the mounting groove and the rotation adjustment.

[0008] Furthermore, the first limiting unit includes a first limiting platform provided on the middle frame and a second limiting platform provided on the knob, one end face of the first limiting platform and one end face of the second limiting platform are gap-matched to limit the positive axial movement of the knob, and the second limiting unit includes a first magnet provided on the knob and a second magnet provided on the middle frame, the first magnet and the second magnet are provided correspondingly and the same magnetic poles of the first magnet and the second magnet are provided to face each other, so as to limit the reverse axial movement of the knob by means of mutually repelling magnetic force. Through this arrangement, it is ensured that the knob is only subjected to the friction force at the first limiting unit during the rotation process, and there is no friction resistance interference at the second limiting unit, so that the rotation resistance of the knob is smaller, the rotation is smoother, and the user experience is improved; and when assembling the knob, only the assembly relationship at the first limiting unit needs to be paid attention to, which is also convenient for disassembly, replacement and maintenance, and improves the scalability of the product.

[0009] Furthermore, the first magnet and the second magnet are annular, which ensures that the knob can be subjected to mutually exclusive supporting forces in the entire circumferential direction, making the installation of the knob more stable, and ensuring that the force on the knob is uniform and stable when rotating, making the adjustment smoother.

[0010] Furthermore, the knob is arranged in a ring shape, the panel is arranged inside the ring shape of the knob, and the front surface of the panel is protruding / flush with the end surface of the knob, so that the overall structure is more compact and the contents of the panel are easy to observe.

[0011] Furthermore, it also includes a motor bracket and a panel bracket arranged on the middle frame, the motor is arranged on the motor bracket, the panel is arranged on the panel bracket, one end of the motor bracket is arranged on the middle frame, and the other end of the motor bracket is fixedly connected to the back side of the panel bracket.

[0012] Furthermore, the knob is connected to the main shaft through a gear transmission assembly. The gear transmission is adopted, so that the recognition accuracy can be finely adjusted from the structural aspect by adjusting the gear ratio of the knob and the gear transmission assembly.

[0013] Furthermore, the gear transmission assembly includes an internal gear integrated with the knob, an intermediate gear, and an end gear arranged on the main shaft, and the intermediate gear is meshed with the internal gear and the end gear at the same time to achieve a transmission connection between the knob and the main shaft.

[0014] Furthermore, one end of the panel bracket is provided with a sleeve for mounting the intermediate gear and a gear mounting frame for fixing the intermediate gear, so as to ensure the stability of the installation of the intermediate gear.

[0015] Furthermore, two intermediate gears are provided and symmetrically arranged. The symmetrically arranged intermediate gears can make the horizontal tangential forces of the rotational motion transmitted to the motor offset each other, avoid the deviation of the knob caused by roundness error and assembly error, etc., effectively ensure the stability of the motor operation, and further ensure the accuracy of the angle recognition when the main shaft of the motor rotates with the knob.

[0016] Furthermore, the main control panel is arranged in the middle frame, a plurality of switches are arranged on the main control panel, a plurality of operation areas corresponding to the switches are arranged on the panel, and pressing the operation area can trigger the corresponding switch. When the operation area of ​​the panel is pressed, the switch at the corresponding position of the main control panel can be triggered, so as to switch the panel function interface, and facilitate the rotation and fine adjustment of the knob based on the specified interface.

[0017] Furthermore, the operating areas are evenly distributed in a circumferential direction on the panel.

[0018] Furthermore, it also includes a pressing bracket arranged on the middle frame, the pressing bracket is provided with a plurality of trigger parts corresponding one to one with the switches, the motor bracket is fixedly connected to the pressing bracket, a fifth magnet corresponding to the position of the second magnet is arranged between the pressing bracket and the middle frame, the fifth magnet is fixedly connected to the pressing bracket, and opposite magnetic poles are arranged on the end faces facing the fifth magnet and the second magnet, so that the pressing bracket can be adsorbed on the middle frame through magnetic adsorption.

[0019] Furthermore, a third limiting unit is provided between the pressing bracket and the middle frame to limit the axial movement of the pressing bracket, and the third limiting unit includes a third magnet provided on the pressing bracket and a fourth magnet provided on the middle frame, and the third magnet and the fourth magnet are provided correspondingly and the same magnetic poles of the third magnet (514) and the fourth magnet are provided facing each other, so as to limit the axial position of the pressing bracket by mutually repelling magnetic force. Introducing mutually repelling magnetic force during the assembly process can compensate for the gap during use, ensure the assembly accuracy, and reduce the number of assembled connectors, making it easy to disassemble and assemble.

[0020] Furthermore, a fourth limiting unit is provided between the middle frame and the pressing bracket.

[0021] Furthermore, the fourth limiting unit includes a positioning column and a positioning cylinder corresponding to the positioning column, the positioning column is inserted into the corresponding positioning cylinder, one of the middle frame and the pressing bracket is provided with the positioning column, and the other is provided with the positioning cylinder. The accuracy of the installation of the pressing bracket is ensured so that the trigger part can accurately correspond to the switch.

[0022] Furthermore, a fifth magnet corresponding to the position of the second magnet is arranged between the pressing bracket and the middle frame, and the fifth magnet is fixedly connected to the pressing bracket. Opposite magnetic poles are arranged on the end faces facing the fifth magnet and the second magnet so that the pressing bracket can be adsorbed on the middle frame through magnetic adsorption.

[0023] Furthermore, the knob and panel are arranged at the front end of the middle frame, the main control board is arranged at the rear end of the middle frame, and the panel and the main control board are connected to the back of the main control board through a cable passing through the panel bracket, the motor bracket, the middle frame, the pressing bracket and the main control board to realize the electrical connection between the panel and the main control board. The cable is designed to be hidden, and the overall structure is more compact and the appearance is better.

[0024] Furthermore, a bottom shell is provided at one end of the middle frame, the bottom shell is detachably connected to the middle frame, and a power board electrically connected to the panel, the motor and the main control board is provided in the bottom shell.

[0025] Another aspect of the present application further discloses a smart home system, including a control module, wherein the control module includes the panel structure disclosed in the first aspect of the present application.

[0026] These features and advantages of the present application will be disclosed in detail in the following specific embodiments and drawings. The best embodiments or means of the present application will be described in detail in conjunction with the drawings, but they are not intended to limit the technical solutions of the present application. In addition, there are multiple features, elements, and components that appear in each of the following texts and drawings, and different symbols or numbers are used for convenience, but they all represent components with the same or similar structures or functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present application is further described below in conjunction with the accompanying drawings:

[0028] Figure 1 This is a front view of the panel structure of one embodiment of the utility model;

[0029] Figure 2 A top view of one embodiment of the utility model;

[0030] Figure 3 This is a structural diagram of a knob in one embodiment of the utility model;

[0031] Figure 4 This is a middle frame structure diagram of one embodiment of the utility model;

[0032] Figure 5 This is a cross-sectional view of the panel structure of one embodiment of the utility model (without the pressing bracket);

[0033] Figure 6 This is a cross-sectional view of a panel structure of one embodiment of the utility model;

[0034] Figure 7 This is an exploded view of the components of one embodiment of the utility model;

[0035] Figure 8This is a schematic diagram of the distribution of operating areas on a panel of one embodiment of the utility model;

[0036] Fig. 9 This is a layout diagram of the triggering portion on the pressing bracket of one embodiment of the utility model;

[0037] Fig.10 This is a switch distribution diagram on the main control board of one embodiment of the utility model;

[0038] Fig.11 This is a schematic diagram of the rotation direction of the gear transmission assembly in the use state of one embodiment of the utility model (the knob rotates clockwise);

[0039] Fig.12 This is a schematic diagram of the rotation direction of the gear transmission assembly in the use state of one embodiment of the utility model (the knob rotates counterclockwise);

[0040] Fig.13 This is a cross-sectional view of one embodiment of the present invention (cable distribution structure).

[0041] in,

[0042] 10. panel; 11. panel bracket; 111. sleeve; 112. operation area;

[0043] 20. Knob; 21. Internal gear; 22. Second limit table; 23. First magnet;

[0044] 30. Motor; 31. Spindle; 32. Motor bracket; 33. End gear;

[0045] 41. Intermediate gear; 42. Gear mounting frame;

[0046] 50, middle frame; 501, positioning column; 51, pressing bracket; 511, positioning cylinder; 512, triggering part; 513, fifth magnet; 514, third magnet; 52, first limit platform; 53, second magnet; 55, cover plate; 551, fourth magnet; 56, mounting slot;

[0047] 60. Main control board; 61. Switch; 62. Cable; 63. Terminal;

[0048] 70. Bottom case; 71. Power board. DETAILED DESCRIPTION

[0049] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments based on the embodiments are intended to be used to explain the present application and cannot be understood as limiting the present application.

[0050] References to "one embodiment" or "example" or "example" in this specification mean that a particular feature, structure, or characteristic described in conjunction with the embodiment itself may be included in at least one embodiment disclosed in the present application. The appearance of the phrase "in one embodiment" in various places in the specification does not necessarily refer to the same embodiment.

[0051] One embodiment of the utility model discloses a panel structure based on motor angle recognition, see attached Figure 1-7 , including a middle frame 50 and a panel 10 and a knob 20 arranged on the middle frame 50, and also including a motor 30 and a main control board 60 arranged on the middle frame 50. The motor 30 includes a main shaft 31. The knob 20 is transmission-connected to the main shaft 31 and the rotation of the knob 20 drives the main shaft 31 to rotate. The motor 30 is electrically connected to the main control board 60 and can transmit a rotation angle signal of the main shaft 31 to the main control board 60. The main control board 60 can receive the rotation angle signal and identify the rotation angle of the knob 20 according to the rotation angle signal.

[0052] The present application abandons the solution of the traditional knob screen using an encoder to identify the angle of the knob 20, and uses the angle detection characteristics of the motor 30 itself to identify the angle of rotation of the knob 20. When selecting the motor 30, the FOC control of the DC brushless motor or the stepper motor can be selected, so that the use of the knob 20 is not limited by frequency, and the frustration of the rotation of the knob 20 caused by the encoder structure is reduced, making the rotation adjustment process smoother and smoother. In addition, the operating feel can be adjusted by adjusting parameters such as the torque of the motor 30, thereby improving the user experience.

[0053] See attached Figure 4 , 5 6. In addition, a mounting groove 56 for mounting the knob 20 is formed on the middle frame 50 in one embodiment of the present application. One end of the knob 20 is inserted into the mounting groove 56 and can rotate around its own axis. A first limiting unit and a second limiting unit for limiting the axial movement of the knob 20 are provided between the mounting groove 56 and the knob 20. In this embodiment, the mounting groove 56 can not only limit the position of the knob 20 in the axial direction through the first limiting unit and the second limiting unit, but also limit the position of the knob 20 in the radial direction through the blocking effect of the side wall of the mounting groove 56 and the side wall of the knob 20. When designing and assembling, the size matching relationship between the mounting groove 56 and the knob 20 is designed to ensure that the knob 20 can rotate smoothly in the mounting groove 56 but cannot be tilted.

[0054] See attached Figure 5 , 6One embodiment of the first limiting unit and the second limiting unit of the present application is as follows: the first limiting unit includes a first limiting platform 52 arranged on the middle frame 50 and a second limiting platform 22 arranged on the knob 20, one end surface of the first limiting platform 52 is gap-matched with one end surface of the second limiting platform 22 to limit the positive axial movement of the knob 20, the second limiting unit includes a first magnet 23 arranged on the knob 20 and a second magnet 53 arranged on the middle frame 50, the first magnet 23 and the second magnet 53 are arranged correspondingly and the same magnetic poles of the first magnet 23 and the second magnet 53 are arranged to face each other, so as to limit the reverse axial movement of the knob 20 through the repulsive magnetic force, and the repulsive magnetic force in this embodiment can offset the gravity of the knob. The structure of the first limiting unit and the second limiting unit in this embodiment ensures that the knob 20 is only subjected to the friction force at the first limiting unit during the rotation process, and there is no friction resistance interference at the second limiting unit (limited support by mutually repelling magnetic force). Compared with directly placing the end face of the knob 20 against the bottom wall of the mounting groove 56 or other components for limiting, the contact area with the components is reduced, so that the resistance of the knob 20 during rotation is smaller, the rotation is smoother, and the user experience is improved. In actual assembly, a small gap is set between the second limiting platform 22 and the first limiting platform 52 to cooperate, and the friction resistance of the knob during the rotation process is further reduced while ensuring the stability of the state of the knob 20, so that the rotation is smoother. In addition, during assembly, the structure of this embodiment only needs to pay attention to the assembly relationship at the first limiting unit, reducing the connecting parts, and facilitating disassembly, replacement and maintenance.

[0055] Of course, in actual configuration, the first magnet 23 and the second magnet 53 can be configured to have the same structure, which can reduce the number of types of materials in the entire panel structure and reduce production costs.

[0056] When the first limiting unit in the present application is designed, in order to ensure a stable limiting effect on the knob 20, the second limiting platform 22 on the knob 20 can be set to a ring structure, and then a plurality of first limiting platforms 52 evenly distributed in the circumferential direction are set on the middle frame 50 (the present application Figure 4 In the embodiment, two symmetrically arranged arc-shaped limiting structures are used, so that multi-point limiting is achieved to ensure that the knob 20 is subjected to balanced force in the circumferential direction. Of course, it is easy to imagine that an annular second limiting platform 22 can also be set on the middle frame 50, and a plurality of circumferentially distributed first limiting platforms 52 can be set on the knob 20, which can also achieve the above effect. In actual design, a suitable limiting unit structure can be selected according to assembly requirements.

[0057] Furthermore, when designing the mutually exclusive magnetic force support knob 20, the first magnet 23 and the second magnet 53 can be set to a ring shape. During specific installation, the first magnet 23 and the second magnet 53 can be set to a ring structure of equal size, so that the two can be easily installed in alignment. During installation, the first magnet 23 and the second magnet 53 are aligned up and down, and an annular groove for installing the first magnet 23 can be set on the knob 20, and the first magnet 23 bracket is clamped or embedded in the annular groove. Of course, it is easy to think that an adhesive can be set on the side wall or bottom wall of the annular groove to bond the first magnet 23, or a connecting hole can be opened on the first magnet 23, and the first magnet 23 can be fixed to the knob 20 by screws, etc., only It is necessary to ensure that the first magnet 23 can be stably fixed on the knob 20; similarly, when installing, the second magnet 53 only needs to be installed in a position relative to the first magnet 23 on the middle frame 50, for example, it can be directly installed on the bottom wall of the installation groove 56, so that after assembly, the knob 20 is subjected to a uniform mutual repulsion force in the circumferential direction by the first magnet 23 and the second magnet 53, so that the knob 20 is subjected to a balanced force during installation and is not prone to tilting. With the limiting effect of the first limiting unit, the knob 20 can be well fixed, and the knob 20 is subjected to a uniform and stable force during rotation, making the adjustment smoother. When disassembling this embodiment, it is only necessary to release the restriction of the first limiting unit on the knob 20, and the knob 20 will automatically detach from the middle frame 50 under the action of the mutual repulsion magnetic force, thereby improving the disassembly effect.

[0058] See attached Figure 3 , 7 When the panel structure is specifically designed, the utility model can set the knob 20 to be annular, the panel 10 is set inside the annular shape of the knob 20, and the front of the panel 10 is protruding / flush with the end face of the knob 20. The overall structure is made more compact, the overall appearance effect is improved, and it is convenient to observe the content of the panel 10. Of course, in actual settings, the appearance cross-section of the knob 20 can also be set to different forms, such as square, circular, triangular, regular hexagonal and other shapes, and the outer wall of the knob 20 can also be provided with anti-slip grooves or protrusions and other structures that are convenient for user operation. It is also conceivable that in some scenarios, a prompt light can be added on or inside the knob 20 to facilitate the user to know the position of the knob 20 in a dark environment.

[0059] In order to ensure the installation stability of each component, the utility model further includes a motor bracket 32 ​​and a panel bracket 11 arranged on the middle frame 50. The motor 30 is arranged on the motor bracket 32, and the panel 10 is arranged on the panel bracket 11. One end of the motor bracket 32 ​​is arranged on the middle frame 50, and the other end of the motor bracket 32 ​​is fixedly connected to the back of the panel bracket 11. In actual setting, the motor 30 is not only indirectly arranged on the middle frame through the motor bracket 32, but also arranged on the panel bracket. When the utility model is in use, the panel 10 does not rotate with the knob 20, so when the panel 10 is installed, it is ensured that it is installed at a position and angle that is convenient for the user to observe.

[0060] See also Figure 5 , 6 7; One embodiment of the transmission method between the knob 20 and the main shaft 31 of the motor 30 in the present application adopts gear transmission, which facilitates fine adjustment of the recognition accuracy from the structural aspect through the gear ratio of the gears of the gear transmission assembly. Of course, in actual settings, belt transmission can also be used, or the knob 20 can be directly connected to the main shaft 31. The recognition accuracy of the angle of the knob 20 can also be further finely adjusted based on the software, hardware and motor 30.

[0061] The present application describes the specific working principle of the panel structure by adopting gear transmission, wherein the gear transmission assembly includes an internal gear 21, an intermediate gear 41, and an end gear 33 provided on the main shaft 31, which are integrated with the knob 20. The intermediate gear 41 is meshed with the internal gear 21 and the end gear 33 at the same time to realize the transmission connection between the knob 20 and the main shaft 31. In the design, the internal gear 21 can be directly processed on the inner wall of the knob 20, or the internal gear 21 can be processed separately and then fixedly assembled on the knob 20. Similarly, the end gear 33 can also be directly processed on the main shaft 31, or can be assembled and connected with the main shaft 31. In this embodiment, the rotation of the knob 20 can drive the rotation of the intermediate gear 41 through the internal gear 21, and the rotation of the intermediate gear 41 drives the rotation of the end gear 33, and finally realizes the rotation of the main shaft 31, and realizes the synchronous rotation of the knob 20 and the main shaft 31 of the motor 30.

[0062] In actual setting, in order to ensure the stability of the installation of the intermediate gear 41, a sleeve 111 for installing the intermediate gear 41 and a gear mounting frame 42 for fixing the intermediate gear 41 are provided at one end of the panel bracket 11. By improving the stability of the installation, the stability of the transmission can be improved, and then the accuracy of the angle recognition of the rotation of the knob 20 can be improved, wherein the gear mounting frame 42 is provided with a column for cooperating with the sleeve 111. During installation, the column is inserted into the sleeve 111 to realize the connection between the gear mounting frame 42 and the panel bracket 11. At the same time, the gear mounting frame 42 is assembled and fixed by pressing and fixing the motor bracket 32 ​​and the panel bracket 11. The gear mounting frame 42 limits the axial direction of the intermediate gear 41 to ensure the stability of the intermediate gear 41 during rotation and avoid its axial movement.

[0063] Due to the annular structure of the knob 20 and the structure in which the inner gear 21 is set, the knob 20 will inevitably deform during the production process, and assembly errors will occur during assembly, which will greatly affect the accuracy during use. In order to avoid this problem, two intermediate gears 41 are provided in one embodiment of the utility model and are symmetrically distributed. The symmetrically arranged intermediate gears 41 can make the horizontal tangential forces of the rotational motion transmitted to the motor 30 offset each other, effectively ensuring the stability of the operation of the motor 30, and further ensuring the accuracy of the angle recognition when the main shaft 31 of the motor 30 rotates with the knob 20.

[0064] The main control panel 60 of the utility model is arranged in the middle frame 50, and a plurality of switches 61 are arranged on the main control panel 60. The panel 10 is provided with a plurality of operation areas 112 corresponding to the switches 61 one by one, and pressing the operation area 112 can trigger the corresponding switch 61. When the operation area 112 of the panel 10 is pressed, the switch 61 at the corresponding position of the main control panel 60 can be triggered, and the functional interface of the panel 10 can be switched, which facilitates the fine adjustment of the knob 20 based on the specified interface rotation, and increases the possibility of interaction. In the specific design, the operation area 112 is evenly distributed in the circumferential direction on the panel 10, and the specific number can be distinguished according to the module function according to the actual situation, and can be set to 2, 3, 4 or even more.

[0065] In order to ensure that the switch on the main control board in the middle frame can be driven to act accordingly through the control panel, the present application also includes a pressing bracket arranged on the middle frame, and a plurality of trigger parts corresponding to the switches are arranged on the pressing bracket. When in use, when the operating area 112 on one side of the panel 10 is pressed (four operating areas A, B, C, and D are arranged in the present application, see the attached Figure 8 , 9, 10), the corresponding panel 10, panel bracket 11, gear mounting bracket 42, motor 30 and pressing bracket 51 will move as a whole (tilt toward the pressing side), and then trigger the switch 61 at the corresponding position on the main control board 60 through the trigger part 512 on the pressing bracket 51, so as to realize the switching of the screen function interface of the knob 20, so as to facilitate the fine adjustment of the rotation of the knob 20 based on the specified interface.

[0066] The motor 30 bracket is fixedly connected to the pressing bracket 51, and a fifth magnet 513 corresponding to the position of the second magnet 53 is arranged between the pressing bracket 51 and the middle frame 50. The fifth magnet 513 is fixedly connected to the pressing bracket 51, and the end faces facing each other of the fifth magnet 513 and the second magnet 53 are arranged with opposite magnetic poles, so as to adsorb the pressing bracket 51 on the middle frame 50 through magnetic adsorption. Of course, it is conceivable that in actual setting, the fifth magnet 513 can be arranged with the same structure as the first magnet 23 and the second magnet 53, so as to reduce the number of types of materials of the entire panel 10 structure and reduce production costs.

[0067] In the embodiment, the fifth magnet 513 is fixed on the pressing bracket 51, and then the pressing bracket 51 is fixed on the middle frame 50 by the magnetic force of the second magnet 53. In actual setting, the second magnet 53 and the fifth magnet 513 are separated by a component on the middle frame 50 (of course, the smaller the thickness of the component, the greater the magnetic attraction between the second magnet 53 and the fifth magnet 513), wherein the fifth magnet 513 is connected to the pressing bracket 51, and an annular groove can be provided on the pressing bracket 51 to ensure the stable installation of the fifth magnet 513.

[0068] The second magnet 53 and the fifth magnet 513 mentioned above are only separated by the middle frame 50. Of course, it is easy to imagine that during actual installation, the second magnet 53 and the fifth magnet 513 can also be separated by the middle frame and the pressing bracket, which can provide more possible assembly methods.

[0069] Furthermore, a third limiting unit for limiting the axial movement of the pressing bracket 51 is provided between the pressing bracket 51 and the middle frame 50, and the third limiting unit includes a third magnet 514 provided on the pressing bracket 51 and a fourth magnet 551 provided on the middle frame 50, and the third magnet 514 and the fourth magnet 551 are provided correspondingly and the same magnetic poles of the third magnet 514 and the fourth magnet 551 are provided facing each other, so as to limit the axial position of the pressing bracket 51 by mutually repelling magnetic force. Introducing mutually repelling magnetic force during the assembly process can compensate for the gap during use, ensure the assembly accuracy, and reduce the number of assembled connectors at the same time, making it easy to disassemble and assemble.

[0070] One embodiment of the third limiting unit of the present application is as follows: the third limiting unit includes a third magnet 514 disposed on the pressing bracket 51 and a fourth magnet 551 disposed on the middle frame 50 (in actual assembly, see the attached Figure 6 , 7 , a cover plate 55 is arranged on the middle frame, and a fourth magnet 551 is arranged on the cover plate 55), the third magnet 514 and the fourth magnet 551 are arranged correspondingly and the same magnetic poles of the third magnet 514 and the fourth magnet 551 are arranged to face each other, so as to limit the reverse movement of the pressing bracket 51 along the axial direction through the mutually repelling magnetic force. Of course, it is conceivable that the third magnet 514 and the fourth magnet 551 can also be arranged as an annular structure. Here, the limiting principle and beneficial effects of the third limiting unit on the pressing bracket 51 are similar to the beneficial effects of the second limiting unit disclosed above, and will not be repeated here. In addition, the mutually repelling magnetic force is introduced here, and the assembly gap and the gap generated during use can be compensated during the assembly process and use to ensure accuracy, while reducing the number of assembled connectors, which is convenient for disassembly and assembly.

[0071] Of course, it is conceivable that the third magnet 514 and the fourth magnet 551 can also be set to the same structure, thereby reducing the number of types of materials in the entire panel structure and reducing production costs.

[0072] The pressing bracket 51 and the motor bracket 32 ​​in the present application may be fixed in various forms, such as by means of a slide groove and a buckle or by using screws.

[0073] In order to further ensure the installation accuracy, a fourth limiting unit is provided between the middle frame 50 and the pressing bracket 51 of the utility model. One implementation of the fourth limiting unit is: it includes a positioning column 501 and a positioning cylinder 511 corresponding to the positioning column 501, the positioning column 501 is inserted into the corresponding positioning hole, one of the middle frame 50 and the pressing bracket 51 is provided with the positioning column 501, and the other is provided with the positioning cylinder 511. The accuracy of the installation of the pressing bracket 51 is ensured so that the trigger part 512 can accurately correspond to the switch 61. Of course, it is conceivable that the fourth limiting unit can also be set in other forms, such as a structure in which a slide groove and a buckle are matched.

[0074] See attached Fig.13The knob 20 and the panel 10 of the utility model are arranged at the front end of the middle frame 50, and the main control board 60 is arranged at the rear end of the middle frame 50. The panel 10 and the main control board 60 are connected to the back of the main control board 60 through the cable 62 passing through the panel bracket 11, the motor bracket 32, the middle frame 50, the pressing bracket 51 and the main control board 60 to realize the electrical connection between the panel 10 and the main control board 60. A terminal 63 for connecting the cable 62 is arranged on the back of the panel 10. During assembly, it is convenient to connect the cable 62 and the main control board 60 from the bottom position of the middle frame 50. The cable 62 of the present application passes through the knob 20 and the inside of the middle frame 50, and the cable 62 is designed to be hidden, so that the overall structure is more compact and the appearance is better.

[0075] It can be seen from the above records that the connection relationship between the various components in the present application is: the panel 10 is fixed on the front side of the panel bracket 11, and a sleeve 111 feature is designed on the back of the panel bracket 11 to facilitate the fixation of two intermediate gears 41 (the intermediate gear 41 is sleeved on the sleeve 111), and then the intermediate gear 41 mounting frame is used to limit the vertical axial direction of the intermediate gear 41 to ensure that the intermediate gear 41 can rotate horizontally during the transmission process to avoid axial movement of the intermediate gear 41. The motor bracket 32 ​​is fixed to the back of the panel bracket 11 by screws, and the intermediate gear 41 mounting frame and the panel bracket 11 are finally limited. After the motor bracket 32 ​​and the pressing bracket 51 are fixedly connected, they are pressed on the middle frame 50 by means of the adsorption magnetic force of the second magnet 53 and the fifth magnet 515 and the repulsive magnetic force of the third magnet 514 and the fourth magnet 551. The adsorption magnetic force of the second magnet 53 and the fifth magnet 515 and the repulsive magnetic force of the third magnet 514 and the fourth magnet 551 jointly bear the total weight of the panel 10, the panel bracket 11, the motor 30, the motor bracket 32, the intermediate gear 41, the gear mounting frame 42, the pressing bracket 51 and the magnets installed thereon. The positioning cylinder 511 and the positioning column 501 of the middle frame 50 are matched with the shaft hole to ensure the precise positioning of the installation. In this way, the stable support of the entire component from the bottom of the middle frame 50 to the front panel 10 is achieved.

[0076] A bottom shell 70 is provided at one end of the middle frame 50 of the utility model, and the bottom shell 70 is detachably connected to the middle frame 50. A power board 71 electrically connected to the main control board 60 is provided in the bottom shell 70. The panel 10 and the motor 30 are connected to the main control board 60. The power board 71 is directly connected to the indoor power supply or directly uses a built-in power supply to ensure the normal operation of the panel structure.

[0077] Based on the panel structure disclosed above, the working principle of the present application is further described. The present application can transmit the rotational motion of the knob 20 to the motor 30. When the knob 20 rotates, the rotational motion is transmitted to the end gears 33 of the motor 30 through the left and right intermediate gears 41. Fig.11As shown, when the knob 20 rotates clockwise, the two intermediate gears 41 rotate clockwise, and the end gears 33 rotate counterclockwise; Fig.12 As shown, when the knob 20 rotates counterclockwise, the two intermediate gears 41 rotate counterclockwise, and the signal transmitted to the end gear 33 rotates clockwise. The rotation angle signal is transmitted to the corresponding chip of the main control board 60 with the help of a motor recognition angle solution (such as FOC control of a brushless DC motor, a stepper motor, etc.); the symmetrically distributed intermediate gears 41 can ensure that the horizontal tangential force of the rotational motion transmitted to the motor 30 due to roundness error and assembly error of the outer ring of the knob 20 is offset, effectively ensuring the stability of the operation of the motor 30. In specific use, the recognition accuracy can be finely adjusted from a structural perspective by adjusting the tooth ratio between the knob 20, the intermediate gear 41 and the end gear 33, and the recognition accuracy can also be further finely adjusted based on software and hardware. At the same time, the operating feel can be adjusted by adjusting parameters such as the torque of the motor 30 to improve the user's operating experience.

[0078] Another aspect of the present application also discloses a smart home system, including a control module, wherein the control module includes the panel structure disclosed in the first aspect of the present application. The beneficial effects of the smart home system disclosed in the present application are similar to those of the above-mentioned panel structure, which will not be repeated here.

[0079] The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Those skilled in the art should understand that the present application includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present application will be included in the scope of the claims.

Claims

1. A panel structure based on motor angle recognition, comprising a middle frame (50) and a panel (10) and a knob (20) arranged on the middle frame (50), characterized in that: The invention also comprises a motor (30) and a main control board (60) which are arranged on the middle frame (50); the motor (30) comprises a main shaft (31); the knob (20) and the main shaft (31) are transmission-connected and the rotation of the knob (20) drives the main shaft (31) to rotate; the motor (30) and the main control board (60) are electrically connected and can transmit a rotation angle signal of the main shaft (31) to the main control board (60); the main control board (60) can receive the rotation angle signal and identify the rotation angle of the knob (20) according to the rotation angle signal.

2. The panel structure according to claim 1, characterized in that: The middle frame (50) is formed with a mounting groove (56) for mounting the knob (20); one end of the knob (20) is inserted into the mounting groove (56) and is rotatable around its own axis; a first limiting unit and a second limiting unit for limiting the axial movement of the knob (20) are provided between the mounting groove (56) and the knob (20).

3. The panel structure according to claim 2, characterized in that: The first limiting unit comprises a first limiting platform (52) arranged on the middle frame (50) and a second limiting platform (22) arranged on the knob (20); one end surface of the first limiting platform (52) is clearance-matched with one end surface of the second limiting platform (22) to limit the positive movement of the knob (20) along the axial direction; the second limiting unit comprises a first magnet (23) arranged on the knob (20) and a second magnet (53) arranged on the middle frame (50); the first magnet (23) and the second magnet (53) are arranged correspondingly and the same magnetic poles of the first magnet (23) and the second magnet (53) are arranged to face each other, so as to limit the reverse movement of the knob (20) along the axial direction by means of mutually repelling magnetic forces.

4. The panel structure according to claim 3, characterized in that: It also includes a motor bracket (32) and a panel bracket (11) which are arranged on the middle frame (50); the motor (30) is arranged on the motor bracket (32); the panel (10) is arranged on the panel bracket (11); one end of the motor bracket (32) is arranged on the middle frame (50); and the other end of the motor bracket (32) is fixedly connected to the back side of the panel bracket (11).

5. The panel structure according to claim 4, characterized in that: The knob (20) is connected to the main shaft (31) via a gear transmission assembly, wherein the gear transmission assembly comprises an internal gear (21) integrally formed with the knob (20), an intermediate gear (41), and an end gear (33) arranged on the main shaft (31); the intermediate gear (41) is meshed with the internal gear (21) and the end gear (33) at the same time to achieve a transmission connection between the knob (20) and the main shaft (31); a sleeve (111) for mounting the intermediate gear (41) and a gear mounting frame (42) for fixing the intermediate gear (41) are arranged at one end of the panel bracket (11); and two intermediate gears (41) are arranged and are symmetrically distributed.

6. The panel structure according to claim 4, characterized in that: The main control board (60) is arranged in the middle frame (50), a plurality of switches (61) are arranged on the main control board (60), and the panel (10) is provided with a plurality of operation areas (112) corresponding one to one with the switches (61), and pressing the operation area (112) can trigger the corresponding switch (61).

7. The panel structure according to claim 6, characterized in that: It also includes a pressing bracket (51) arranged on the middle frame (50), and a plurality of trigger parts (512) corresponding to the switches (61) are arranged on the pressing bracket (51), and the motor bracket (32) is fixedly connected to the pressing bracket (51), and a fifth magnet (513) corresponding to the position of the second magnet (53) is arranged between the pressing bracket (51) and the middle frame (50), and the fifth magnet (513) is fixedly connected to the pressing bracket (51), and opposite magnetic poles are arranged on the end faces of the fifth magnet (513) and the second magnet (53) facing each other, so as to adsorb the pressing bracket (51) on the middle frame (50) through magnetic adsorption.

8. The panel structure according to claim 7, characterized in that: A third limiting unit for limiting the axial movement of the pressing bracket (51) is arranged between the pressing bracket (51) and the middle frame (50), and the third limiting unit comprises a third magnet (514) arranged on the pressing bracket (51) and a fourth magnet (551) arranged on the middle frame (50), the third magnet (514) and the fourth magnet (551) being arranged correspondingly and the same magnetic poles of the third magnet (514) and the fourth magnet (551) being arranged facing each other, so as to limit the axial position of the pressing bracket by means of mutually repelling magnetic forces.

9. The panel structure according to claim 7, characterized in that: A fourth limiting unit is provided between the middle frame (50) and the pressing bracket (51), and the fourth limiting unit comprises a positioning column (501) and a positioning tube (511) provided corresponding to the positioning column (501), the positioning column (501) being inserted into the corresponding positioning tube (511), and one of the middle frame (50) and the pressing bracket (51) is provided with the positioning column (501), and the other is provided with the positioning tube (511).

10. The panel structure according to claim 7, characterized in that: The knob (20) and the panel (10) are arranged at the front end of the middle frame (50), and the main control board (60) is arranged at the rear end of the middle frame (50). The panel (10) and the main control board (60) are connected to the back of the main control board (60) through a cable (62) passing through a panel bracket (11), a motor bracket (32), the middle frame (50), a pressing bracket (51) and the main control board (60) to realize electrical connection between the panel (10) and the main control board (60). A bottom shell (70) is arranged at one end of the middle frame (50), and the bottom shell (70) is detachably connected to the middle frame (50). A power supply board (71) electrically connected to the panel (10), the motor (30) and the main control board (60) is arranged in the bottom shell (70).

11. A smart home system, comprising a control module, characterized in that: The control module comprises the panel structure according to any one of claims 1-10.

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