A wireless knob controller

Abstract

The utility model discloses an embodiment of the utility model discloses a kind of wireless knob controllers, wireless knob controller includes shell, bearing, button support, middle frame support, mainboard, metal button and antenna feed mechanism, bearing is installed in shell, button support and middle frame support are set in shell and respectively located above and below bearing, middle frame support is connected with bearing inner ring, button support and middle frame support are connected, mainboard is set between button support and middle frame support, metal button is located above button support, antenna feed mechanism is set between button support and mainboard and respectively with mainboard and metal button connection.Wireless knob controller by with metal button as the radiating unit of antenna, no longer need additional antenna body, provide good antenna radiation performance, while also save space and cost.

Description

Technical Field

[0001] This utility model relates to the field of electronic control technology, and more specifically, to a wireless knob controller. Background Technology

[0002] With the widespread application of wireless communication technology in consumer electronics, industrial control, and smart homes, more and more devices are integrating wireless communication functions (such as Wi-Fi, Bluetooth, ZigBee, LoRa, etc.). These devices also come equipped with wireless rotary controllers or remote controls that integrate wireless communication capabilities, allowing users to control the devices' functions. However, the increasing variety and functional requirements of devices necessitate a growing demand for wireless communication frequency bands for rotary controllers, requiring expansion of their antenna bandwidth. Furthermore, the decreasing space available for rotary controllers leads to larger and larger structures, hindering the miniaturization of their design. Utility Model Content

[0003] In view of this, the present invention provides a wireless knob controller that uses a metal button as the radiating element of the antenna, eliminating the need for a separate antenna body, providing good antenna radiation performance, and saving space and cost.

[0004] This utility model embodiment provides a wireless knob controller, the wireless knob controller comprising:

[0005] The outer casing has an axially extending accommodating cavity;

[0006] The bearing is installed within the accommodating cavity;

[0007] A button bracket is disposed within the accommodating cavity and located above the bearing;

[0008] A middle frame bracket is disposed within the accommodating cavity and located below the bearing. The inner ring of the bearing is connected to the middle frame bracket via multiple second connectors. The middle frame bracket and the button bracket are connected via multiple third connectors.

[0009] The motherboard is disposed between the button bracket and the middle frame bracket;

[0010] A metal button is located above the button holder;

[0011] An antenna feeding mechanism is disposed between the button bracket and the main board, and the antenna feeding mechanism is connected to the main board and the metal button respectively.

[0012] Optionally, the wireless knob controller further includes a metal connector connecting the antenna feeding mechanism and the metal button.

[0013] Optionally, the wireless knob controller further includes an antenna feed bracket, which is installed on the side of the button bracket near the antenna feed mechanism, and the antenna feed mechanism is installed between the antenna feed bracket and the motherboard.

[0014] Optionally, the button bracket has a through slot, the metal button has a connection hole, the antenna feed bracket has a through hole, and the metal connector is connected to the connection hole through the through hole and the through slot.

[0015] Optionally, the wireless knob controller further includes:

[0016] Antenna bracket protective pad is installed on the side of the antenna feed bracket closest to the motherboard;

[0017] A buffer pad is installed on the side of the metal connector near the motherboard;

[0018] Multiple first connectors are connected to the main board, the antenna bracket protective pad, the antenna feed bracket, and the button bracket.

[0019] Optionally, the wireless knob controller further includes a power supply structure and a magnetic component, respectively disposed within the mid-frame bracket, with the power supply structure connected to the motherboard.

[0020] Optionally, the wireless knob controller also includes a battery cover assembly attached to the bottom of the mid-frame bracket to seal the power supply structure and the magnetic element.

[0021] Optionally, the battery cover assembly includes:

[0022] The battery cover is attached to the bottom of the middle frame bracket;

[0023] A metal plate for the battery cover is disposed on the side of the battery cover away from the power supply structure;

[0024] A battery cover trim piece that covers the outside of the battery cover metal plate.

[0025] Optionally, the antenna feeding mechanism includes a copper ring, an RF cable, and a copper sheet. The core wire at the first end of the RF cable is soldered to the copper ring, the outer conductor at the first end of the RF cable is soldered to the copper sheet, and a connector is connected to the second end of the RF cable.

[0026] The connector is connected to the motherboard, the copper sheet is located between the antenna feed bracket and the antenna bracket protective pad, and the metal connector passes through the copper ring, the through hole, and the through groove to connect to the connection hole.

[0027] Optionally, the antenna feeding mechanism includes a metal ring, a support frame, and a feeding pin. The metal ring is disposed above the support frame. One end of the feeding pin is located below the support frame, and the other end passes through the support frame and connects to the metal ring. The metal connector is located inside the metal ring and has a coupling feeding gap with the metal ring.

[0028] This utility model provides a wireless knob controller, which includes a housing, a bearing, a button bracket, a mid-frame bracket, a main board, a metal button, and an antenna feeding mechanism. The bearing is installed inside the housing. The button bracket and the mid-frame bracket are disposed inside the housing and located above and below the bearing, respectively. The mid-frame bracket is connected to the inner ring of the bearing. The button bracket and the mid-frame bracket are connected. The main board is disposed between the button bracket and the mid-frame bracket. The metal button is located above the button bracket. The antenna feeding mechanism is disposed between the button bracket and the main board and is connected to both the main board and the metal button. By using the metal button as the radiating element of the antenna, the wireless knob controller eliminates the need for a separate antenna body, providing good antenna radiation performance while saving space and cost. Attached Figure Description

[0029] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

[0030] Figure 1 This is an exploded view of the wireless knob controller according to the first embodiment of this utility model;

[0031] Figure 2 This is a top view of the wireless knob controller according to the first embodiment of this utility model;

[0032] Figure 3 yes Figure 2 The AA half-section view shown;

[0033] Figure 4 This is a top view of the button bracket, antenna feed bracket, mid-frame bracket, motherboard, and antenna bracket protective pad connected together according to the first embodiment of this utility model;

[0034] Figure 5 yes Figure 4 The BB half-section view shown;

[0035] Figure 6 This is a schematic diagram of the structure of the middle frame bracket of the first embodiment of this utility model;

[0036] Figure 7 This is a schematic diagram of the middle frame bracket from another angle in the first embodiment of this utility model;

[0037] Figure 8 This is a schematic diagram of the button bracket according to the first embodiment of the present invention;

[0038] Figure 9 This is a schematic diagram of the structure of the motherboard, button bracket, antenna feed bracket, antenna feed mechanism, and antenna bracket protective pad connected together according to the first embodiment of this utility model;

[0039] Figure 10 yes Figure 9 A bottom view of the structure shown;

[0040] Figure 11 yes Figure 10 The CC half-section view shown;

[0041] Figure 12 This is a schematic diagram of the structure of the battery cover according to the first embodiment of this utility model;

[0042] Figure 13 This is a schematic diagram of the antenna feeding mechanism according to the first embodiment of this utility model;

[0043] Figure 14 This is a cross-sectional view of the outer shell of the first embodiment of this utility model;

[0044] Figure 15 This is an exploded view of the wireless knob controller according to the second embodiment of this utility model;

[0045] Figure 16 This is a top view of the wireless knob controller according to the second embodiment of this utility model;

[0046] Figure 17 yes Figure 16 The DD half-section view shown;

[0047] Figure 18 This is a schematic diagram of the antenna feeding mechanism according to the second embodiment of the present invention;

[0048] Figure 19 This is a diagram showing the antenna radiation efficiency of the first embodiment of this utility model;

[0049] Figure 20 This is a diagram of S11 parameters measured in the WiFi 2.4GHz and 5GHz bands according to the first embodiment of this utility model;

[0050] Figure 21 This is an antenna efficiency diagram measured under the WiFi 2.4G+5G frequency band according to the first embodiment of this utility model;

[0051] Figure 22 This is a diagram of S11 parameters measured in the WiFi 2.4GHz band according to the first embodiment of this utility model;

[0052] Figure 23 This is an antenna efficiency diagram measured in the WiFi 2.4G band according to the first embodiment of this utility model;

[0053] Figure 24 This is a diagram of S11 parameters measured in the WiFi 2.4GHz band according to the second embodiment of this utility model;

[0054] Figure 25 This is an antenna efficiency diagram measured in the WiFi 2.4G band according to the second embodiment of this utility model.

[0055] Explanation of reference numerals in the attached figures:

[0056] 1-Button bracket; 101-Through slot; 102-First connecting post; 103-Positioning post; 104-Fifth connecting post; 2-Middle frame bracket; 21-Second connecting post; 211-Optical hole; 22-Third connecting post; 23-Fourth connecting post; 24-Battery slot; 25-Groove; 3-Main board; 4-Metal button; 41-Connecting hole; 5-Antenna feeding mechanism; 51-Copper ring; 52-RF cable; 53-Copper sheet; 54-Metal ring; 55-Support bracket; 56-Feeding pin; 6-Metal connector; 7 - Antenna feed bracket; 71- Through hole; 8- Antenna bracket protective pad; 81- Mounting cavity; 9- Buffer pad; 10- First connector; 11- Power supply structure; 12- Magnetic component; 13- Battery cover assembly; 131- Battery cover; 132- Battery cover metal plate; 133- Battery cover decorative component; 14- Outer shell; 141- Receiving cavity; 142- First receiving part; 143- Second receiving part; 144- Third receiving part; 145- Fourth receiving part; 15- Bearing; 16- Second connector; 17- Third connector. Detailed Implementation

[0057] The present application is described below based on embodiments, but it is not limited to these embodiments. In the detailed description of the present application below, certain specific details are described in detail. Those skilled in the art can fully understand the present application without these details. To avoid obscuring the substance of the present application, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0058] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0059] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0060] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0061] Wireless knobs, due to their convenience and flexibility, can be used in various scenarios, such as smart home control, vehicle control systems, and medical equipment. Specifically in smart home scenarios, wireless knobs can connect to smart home devices via Bluetooth or WiFi, allowing users to control these devices simply by rotating or pressing the knob. This control includes adjusting light brightness and color, regulating air conditioning temperature, and controlling audio volume.

[0062] This application provides a wireless knob controller in which a metal button 4 is connected to a motherboard 3 (signal source) via an antenna feeding mechanism 5, so that the metal button 4 can be used as an antenna radiating unit to transmit and receive signals, thus meeting the wireless communication requirements. It can provide good antenna radiation performance without setting an additional antenna body on the wireless knob controller, saving space and cost.

[0063] First embodiment:

[0064] like Figures 1-3 As shown, the wireless rotary controller includes a housing 14, a bearing 15, a button bracket 1, a mid-frame bracket 2, a main board 3, a metal button 4, and an antenna feeding mechanism 5. The housing 14 has an axially extending cavity 141. The bearing 15 is installed within the cavity 141. The button bracket 1 is located within the cavity 141 and above the bearing 15. The mid-frame bracket 2 is located within the cavity 141 and below the bearing 15. The mid-frame bracket 2 is connected to the inner ring of the bearing 15 via a second connector 16. The mid-frame bracket 2 and the button bracket 1 are then connected via a third connector 17, allowing them to rotate as a unit within the housing 14 via the bearing 15. The main board 3 is located between the button bracket 1 and the mid-frame bracket 2. The metal button 4 is installed above the button bracket 1. The antenna feeding mechanism 5 is located between the button bracket 1 and the main board 3, and is connected to both the main board 3 and the metal button 4. Thus, the metal knob, button bracket 1, mid-frame bracket 2, main board 3 and antenna feeding mechanism 5 are connected as a whole, and can be rotated within the housing 14 via bearing 15 to achieve rotation control of the metal knob.

[0065] The above-described configuration allows the metal button 4 to not only retain its original physical operation function but also function as an antenna radiating element to transmit or receive electromagnetic waves within a specific frequency range, thereby enhancing wireless communication capabilities. Using the metal button 4 as an antenna radiating element reduces the additional space and components required by traditional independent antennas, making the wireless knob controller more compact and lightweight. Since no additional antenna design is needed, the overall appearance of the wireless knob controller can be simpler and more streamlined. Furthermore, in this embodiment, the metal button 4, acting as an antenna radiating element, also enhances signal strength and quality, providing excellent antenna radiation performance.

[0066] like Figure 1 and Figure 3 As shown, the wireless knob controller also includes a metal connector 6, which is disposed between the button bracket 1 and the main board 3. The metal connector 6 connects the antenna feeding mechanism 5 and the metal button 4. The antenna feeding mechanism 5 connects the metal connector 6 and the main board 3, thereby enabling signal transmission and reception between the main board 3, the antenna feeding mechanism 5, the metal connector 6, and the metal button 4.

[0067] like Figure 1 and Figure 3 As shown, the wireless knob controller also includes an antenna feed bracket 7 and an antenna bracket protective pad 8. The antenna feed bracket 7 is installed on the side of the button bracket 1 near the antenna feed mechanism 5, and the antenna bracket protective pad 8 is installed on the side of the antenna feed bracket 7 near the main board 3. That is, the button bracket 1, antenna feed bracket 7, antenna bracket protective pad 8, and main board 3 are arranged sequentially from top to bottom to form an upper bracket assembly, and then the main board 3, antenna bracket protective pad 8, and antenna feed bracket 7 are connected and fixed to the button bracket 1 as a whole by multiple first connectors 10, as shown. Figures 9-11 As shown. The antenna feeding mechanism 5 is installed between the antenna feeding bracket 7 and the main board 3. One end of the metal connector 6 is connected to the antenna feeding mechanism 5, and the other end of the metal connector 6 passes through the antenna feeding bracket 7 and is connected to the metal button 4 pre-installed on the button bracket 1.

[0068] like Figure 14 As shown, the outer casing 14 has an axially extending receiving cavity 141. A bearing 15 is installed within the receiving cavity 141, dividing it into upper and lower parts. Specifically, the outer ring of the bearing 15 is fixedly connected to the receiving cavity 141 with adhesive. The receiving cavity 141 is a cylindrical cavity. The outer surfaces of the button bracket 1, antenna feed bracket 7, antenna bracket protective pad 8, main board 3, and middle frame bracket 2 are all cylindrical and coaxially connected. This allows the button bracket 1, antenna feed bracket 7, antenna bracket protective pad 8, main board 3, and middle frame bracket 2 to rotate within the receiving cavity 141 when the user rotates the metal button 4.

[0069] In this embodiment, the accommodating cavity 141 is divided into a first accommodating portion 142, a second accommodating portion 143, a third accommodating portion 144, and a fourth accommodating portion 145 along the axial direction from top to bottom. The diameter of the first accommodating portion 142 is larger than the diameter of the second accommodating portion 143, the diameter of the fourth accommodating portion 145 is larger than the diameter of the third accommodating portion 144, and the diameter of the third accommodating portion 144 is larger than the diameter of the second accommodating portion 143. This creates a step between adjacent accommodating portions, facilitating axial positioning of the corresponding structures.

[0070] Specifically, the bearing 15 is installed upwards from below in the third receiving portion 144 of the receiving cavity 141, and the middle frame bracket 2 is installed upwards from below in the fourth receiving portion 145 of the receiving cavity 141. Then, the second connecting member 16 connects the inner ring of the bearing 15 to the middle frame bracket 2 from above in the receiving cavity 141, thus providing a limiting connection. Figure 3 As shown. The button bracket 1, antenna feed bracket 7, antenna bracket protective pad 8, and main board 3 are connected as a whole and installed from above and below within the first receiving portion 142 and the second receiving portion 143 of the receiving cavity 141. Then, the third connector 17 connects the middle frame bracket 2 and the button bracket 1 from bottom to top, as shown. Figure 4 and Figure 5 As shown. The button bracket 1 is located in the first receiving portion 142, and the antenna bracket protective pad 8 and the main board 3 can extend from the first receiving portion 142 into the second receiving portion 143. The button bracket 1 and the middle frame bracket 2 are respectively located on both sides of the bearing 15 and are fixedly connected, which can achieve a relatively fixed setting with respect to the outer casing 14 along the axial direction, preventing them from falling out of the outer casing 14 and affecting use.

[0071] In this embodiment, the housing 14 is made of a metal material, such as stainless steel or iron. The metal housing 14 not only improves the product's durability, heat dissipation, and electromagnetic shielding performance, but also enhances the appearance and stability of the wireless knob controller. In some cases, the housing 14 may also be made of plastic or other composite materials.

[0072] like Figure 1 and Figure 3 As shown, the metal button 4 is a streamlined rotating body, which is beneficial for widening the antenna bandwidth. At the same time, the shape of the metal button 4 facilitates user operation and enables corresponding control. A streamlined rotating body refers to a contour with a smooth transition from top to bottom, with a rounded top and a gradually tapering bottom; streamlined rotating bodies typically possess rotational symmetry and can rotate along their axis. The metal button 4 can be made of stainless steel, aluminum, copper alloy, or other metals. The metal button 4 has a connecting hole 41, with the opening of the connecting hole 41 facing downwards, as... Figure 3As shown. The connecting hole 41 is used to connect with the metal connector 6, thereby fixing the metal button 4 to the upper bracket assembly, allowing them to rotate synchronously. When the metal connector 6 is a metal screw, the connecting hole 41 can be set as a threaded hole of a suitable size so that the metal screw can be connected into the threaded hole.

[0073] In this embodiment, the bottom end of the metal button 4 is provided with a boss, and the connecting hole 41 is provided on the boss and extends into the metal button 4. The boss is cylindrical to facilitate pre-installation with the button bracket 1. That is, the boss extends into the through groove 101 of the button bracket 1.

[0074] The button bracket 1 supports and secures the metal button 4, ensuring that the user can easily and accurately operate the metal button 4, while also ensuring that the metal button 4 correctly triggers the internal switch or sensor when pressed or rotated, providing a reliable user experience. Figure 1 As shown, the side of the button holder 1 facing the metal button 4 is a smooth surface, which serves as the outer surface of the wireless knob controller and enhances its aesthetics. Simultaneously, the shape of this smooth surface creates a space between it and the outer surface of the metal button 4, facilitating the rotation or pressing of the metal button 4.

[0075] like Figure 8 As shown, the inner side of the button bracket 1 away from the metal button 4 is provided with multiple first connecting posts 102, and each first connecting post 102 is provided with a first mounting hole. The antenna feed bracket 7 and the antenna bracket protective pad 8 are provided with multiple through holes for the first connecting posts 102 to pass through, and the main board 3 is provided with a first hole. During installation, the first connecting post 102 passes through the through holes of the antenna feed bracket 7 and the antenna bracket protective pad 8 and abuts against the main board 3. Then, the first connector 10 passes through the first hole from the side of the main board 3 away from the metal button 4 and connects to the first mounting hole of the first connecting post 102, thereby connecting and fixing the main board 3, the antenna bracket protective pad 8, the antenna feed bracket 7, and the button bracket 1 into a single unit. The first connector 10 is a screw, and the first mounting hole is a threaded hole.

[0076] like Figure 1 and Figure 8 As shown, the button bracket 1 has a through groove 101, which extends along the thickness of the button bracket 1, that is, it penetrates both the smooth surface and the inner surface of the button bracket 1. The metal button 4 can be pre-installed in the through groove 101, and then the metal connector 6 is passed through the antenna feed bracket 7 and fixedly connected to the metal button 4.

[0077] In this embodiment, the button bracket 1 is a sleeve structure with a top plate, and multiple first connecting posts 102 protrude from the inner side of the top plate. The outer diameter of the antenna feed bracket 7 and the antenna bracket protective pad 8 is smaller than the inner diameter of the button bracket 1. This allows the antenna feed bracket 7 and the antenna bracket protective pad 8 to extend into the button bracket 1 and abut against the inner side of the top plate when mounted on the button bracket 1 via the first connecting posts 102. This sleeve structure of the button bracket 1 reduces the overall height of the upper bracket assembly, thereby reducing the overall height of the wireless knob controller and achieving miniaturization. Preferably, the inner side of the top plate of the button bracket 1 is provided with multiple reinforcing ribs to increase the structural strength of the button bracket 1.

[0078] The antenna feed bracket 7 supports and positions the antenna feed mechanism 5, ensuring that the metal button 4 can effectively receive signals and transmit them to the main board 3 for processing. It also ensures that signals emitted from the main board 3 can be effectively radiated through the metal button 4. Simultaneously, the metal connector 6 passes through the antenna feed bracket 7 and connects to the metal button 4, allowing the metal button 4 to be fixedly connected to the upper bracket assembly, facilitating the rotational control of the metal button 4.

[0079] The antenna support protective pad 8 is used to protect the antenna feed mechanism 5 and the motherboard 3 from physical damage or external environmental factors. The antenna support protective pad 8 acts as a buffer, reducing damage to sensitive electronic components on the motherboard 3 caused by vibration or impact. Preferably, the antenna support protective pad 8 is configured with the same external dimensions as the antenna feed bracket 7. The antenna support protective pad 8 has a through mounting cavity 81 to provide mounting space for the antenna feed mechanism 5, metal connectors 6, etc. The antenna support protective pad 8 can be attached to the side of the antenna feed bracket 7 facing the motherboard 3 using adhesive, double-sided tape, etc. In this embodiment, the antenna support protective pad 8 can be made of materials such as foam, rubber, or silicone, and has shock-absorbing and insulating properties.

[0080] The motherboard 3 is equipped with multiple electronic components and circuits for processing information received or transmitted via the metal button 4. Simultaneously, when the user rotates the metal button 4, the metal button 4 causes the motherboard 3 to rotate relative to the outer casing 14. The rotation angle of the metal button 4 can be detected and measured, and based on the rotation angle, control of connected devices can be achieved, such as volume control, temperature adjustment, and light intensity control. The motherboard 3 is located on the side of the antenna bracket protective pad 8 away from the antenna feed bracket 7. The first connecting post 102 of the button bracket 1 abuts against the motherboard 3, and then the motherboard 3 is fixed to the button bracket 1 via the first connecting piece 10. Preferably, the antenna bracket protective pad 8 is in a compressed state to prevent it from shaking.

[0081] In this embodiment, a support platform is provided on the motherboard 3. After the motherboard 3 is connected to the antenna feed bracket 7, the support platform is located inside the mounting cavity 81 and directly below the metal connector 6, and is used to support and fix the metal connector 6.

[0082] like Figure 1 and Figure 3 As shown, the wireless knob controller also includes a buffer pad 9, which is installed on the side of the metal connector 6 near the motherboard 3. The buffer pad 9 can be attached to the metal connector 6 using adhesive or double-sided tape. After the motherboard 3 is connected to the antenna feed bracket 7, the buffer pad 9 is located between the metal connector 6 and the support platform. The buffer pad 9 acts as a buffer, reducing damage to sensitive electronic components on the motherboard 3 caused by vibration or impact. The buffer pad 9 can be made of materials such as foam, rubber, or silicone, and has shock-absorbing and insulating properties.

[0083] In this embodiment, the antenna feeding mechanism 5 includes a copper ring 51, an RF cable 52, and a copper sheet 53, such as Figure 13 As shown. The first end of the RF cable 52 is stripped of its outer conductor, central dielectric, and core wire to a suitable size using a wire stripper. The core wire of the first end of the RF cable 52 is then soldered to a copper ring 51, and the outer conductor of the first end of the RF cable 52 is soldered to a copper sheet 53. The second end of the RF cable 52 is connected to a connector. During installation, the antenna feed mechanism 5 is first fixed to the side of the antenna feed bracket 7 facing the main board 3 using double-sided tape or glue. This means fixing the copper ring 51 and copper sheet 53 to the side of the antenna feed bracket 7, at which point the copper ring 51 is coaxially aligned with the through hole 71 of the antenna feed bracket 7. Then, the metal connector 6 passes through the copper ring 51 and the through hole 71 of the antenna feed bracket 7, connecting to the connection hole 41 of the metal button 4. Finally, the connector of the RF cable 52 passes through the corresponding hole on the main board 3 and engages with the connector on the main board 3. The copper sheet 53 is located between the antenna feed bracket 7 and the antenna bracket protective pad 8, and the copper sheet 53 serves as a reference ground for the metal button 4. In this embodiment, the length of the copper sheet 53 is approximately 20 mm. However, the length of the copper sheet 53 can be set according to requirements.

[0084] In this embodiment, the metal connector 6 is a screw or bolt structure made of metal. The connection hole 41 of the metal button 4 is a corresponding threaded hole. The metal connector 6 and the metal button 4 are connected by threads, which is simple, easy to implement, and low in cost.

[0085] Among them, the outer surfaces of the button bracket 1, antenna feed bracket 7, antenna bracket protective pad 8, and main board 3 are all cylindrical. The through groove 101 is located at the center of the button bracket 1, the connecting hole 41 is located at the center of the metal button 4, and the through hole 71 is located at the center of the antenna feed bracket 7. After the button bracket 1, antenna feed bracket 7, antenna bracket protective pad 8, main board 3, and metal button 4 are connected as a whole, a rotating structure is formed, which makes it easy for the user to operate the metal button 4 to rotate.

[0086] like Figure 6 As shown, the middle frame bracket 2 has multiple second connecting posts 21 on the side facing the motherboard 3. Each second connecting post 21 has a through-hole 211, and a partition with a second mounting hole is disposed inside the 211. Figure 8 As shown, the button bracket 1 is provided with multiple fifth connecting posts 104, and each fifth connecting post 104 is provided with a fifth mounting hole. The positions of the multiple second connecting posts 21 correspond one-to-one with the positions of the multiple fifth connecting posts 104. When the middle frame bracket 2 is connected to the button bracket 1, the multiple fifth connecting posts 104 are respectively inserted into the light holes 211 of the multiple second connecting posts 21 for positioning. Then, a third connector 17 extends from below the middle frame bracket 2 into the light holes 211 of the second connecting posts 21, passes through the second mounting hole, and connects to the fifth mounting hole, thereby connecting the middle frame bracket 2 and the button bracket 1 together. Figure 5 As shown. The third connector 17 is hidden inside the light hole 211 of the second connecting post 21, which can reduce the overall height of the middle frame bracket 2.

[0087] like Figure 6 As shown, the middle frame bracket 2 has multiple third connecting posts 22 on the side facing the motherboard 3, and each third connecting post 22 has a positioning hole with an opening facing the motherboard 3. Correspondingly, the button bracket 1 has multiple positioning posts 103 on the side facing the motherboard 3, such as... Figure 8 As shown, multiple positioning posts 103 are set one-to-one with multiple third connecting posts 22, and the middle frame bracket 2 and button bracket 1 can be pre-installed and positioned through the multiple positioning posts 103 and multiple third connecting posts 22.

[0088] like Figure 6 As shown, the middle frame bracket 2 has multiple fourth connecting posts 23 on the side facing the motherboard 3. Each fourth connecting post 23 has a fourth mounting hole with an opening facing the motherboard 3. When the middle frame bracket 2 is installed into the housing 14, the multiple fourth connecting posts 23 are inserted into the inner ring of the bearing 15 and respectively fit against the inner ring of the bearing 15. The second connector 16 is installed downwards from above the bearing 15 into the fourth mounting hole of the fourth connecting post 23, thereby confining the middle frame bracket 2 within the housing 14.

[0089] In this embodiment, both the second connector 16 and the third connector 17 are screws.

[0090] like Figure 7 As shown, the bottom surface of the middle frame bracket 2 is provided with a battery slot 24 and a recess 25. (As indicated...) Figure 1 and Figure 3 As shown, the wireless knob controller also includes a power supply structure 11 and a magnetic component 12. The power supply structure 11 and the magnetic component 12 are respectively housed within the mid-frame bracket 2; specifically, the power supply structure 11 is installed within the battery slot 24, and the magnetic component 12 is installed within the recess 25. The power supply structure 11 is connected to the main board 3 and is used to power the wireless knob controller. The magnetic component 12 can be a magnet, allowing the wireless knob controller to be magnetically fixed in a corresponding position.

[0091] The power supply structure 11 can be a lithium polymer battery, which is connected to the motherboard 3 via its own wires. Alternatively, the power supply structure 11 can be a regular battery. A connecting pad is provided in the battery slot 24 of the mid-frame bracket 2. The connecting pad is soldered to the power lines led out from the motherboard 3. After the battery is installed in the battery slot 24, it is connected to the motherboard 3 through the connecting pad.

[0092] like Figure 1 and Figure 3 As shown, the wireless knob controller also includes a battery cover assembly 13, which is connected to the bottom of the mid-frame bracket 2 to seal the power supply structure 11 and the magnetic component 12. The battery cover assembly 13 and the mid-frame bracket 2 can be connected by means of fastening, threads, etc.

[0093] like Figure 1 and Figure 3 As shown, the battery cover assembly 13 includes a battery cover 131, a battery cover metal plate 132, and a battery cover decorative piece 133. The battery cover 131 is connected to the bottom of the mid-frame bracket 2, the battery cover metal plate 132 is disposed on the side of the battery cover 131 away from the power supply structure 11, and the battery cover decorative piece 133 covers the outer side of the battery cover metal plate 132. The battery cover metal plate 132 serves as a magnetic conductor, helping to enhance magnetic attraction and improve the stability and reliability of the wireless knob controller. Simultaneously, the battery cover metal plate 132 also increases the strength of the battery cover 131.

[0094] like Figure 12 As shown, two recesses are arranged sequentially on the bottom surface of the battery cover 131. The battery cover metal plate 132 is fixed in the recesses, and the battery cover decorative piece 133 is installed in the outer recess by double-sided tape or glue, thereby covering the battery cover metal plate 132 inside the battery cover 131.

[0095] In this embodiment, the metal button 4 of the wireless knob controller serves as an antenna radiator, covering the WiFi 2.4G+5G frequency bands. This provides users with a wider range of choices to adapt to the needs of different scenarios and optimize the network experience.

[0096] The radiation frequency of the metal button 4 can be calculated based on the characteristics of the dipole antenna:

[0097]

[0098] In one embodiment, the height of the metal button 4 is approximately 18.5 mm, the radiation length of the antenna (i.e., the height of the metal button 4) is approximately one-quarter of the electromagnetic wave wavelength λ corresponding to its radiation frequency in the medium, the dielectric constant ε is approximately 3, and the speed of light c is 3 × 10⁻⁶. 8 meters per second (m / s). Using the above formula, we can derive f = 2.34 GHz, meaning this metal button 4 falls within the WiFi 2.4 GHz frequency band.

[0099] Figures 19-23 This is a test diagram of the antenna radiation performance of a wireless knob controller. Figure 19 The antenna's radiation efficiency at different frequencies is shown, indicating that the antenna's radiation performance can cover from 1GHz to 6GHz, with a radiation efficiency greater than -2.5dB. This demonstrates that the metal button 4 has a wide adjustable range as a radiating antenna, and the antenna can be adjusted to the desired frequency band by adjusting different capacitors and inductors. Figure 20 The graph shows the curves of the S11 parameter (also known as the reflection coefficient or input return loss) as a function of frequency. S-parameters (scattering parameters) are commonly used to describe the transmission and reflection characteristics of signals in microwave and radio frequency circuits. As can be seen from the graph, the frequency range can cover WiFi 2.4G + WiFi 5G.

[0100] Figure 21 The diagram shows the antenna efficiency of Wi-Fi antennas that simultaneously support the 2.4GHz and 5GHz bands. The WiFi 2.4G antenna efficiency reaches above -0.8dB, and the WiFi 5G antenna efficiency reaches above -2.2dB. The diagram displays two types of efficiency: radiated efficiency and overall efficiency, represented by red and green curves, respectively.

[0101] Figure 22 An amplitude diagram of the S11 parameters for an antenna covering WiFi 2.4G is shown. S11 is used to describe the reflection characteristics of signals in microwave and radio frequency circuits.

[0102] Figure 23 and Figure 22 It is the same antenna matching type. Figure 23 This refers to the antenna efficiency under this antenna matching configuration; the WiFi 2.4G antenna efficiency reaches over -0.43dB.

[0103] The wireless knob controller of this embodiment includes a housing 14, a bearing 15, a button bracket 1, a mid-frame bracket 2, a main board 3, a metal button 4, and an antenna feeding mechanism 5. The bearing 15 is installed inside the housing 14. The button bracket 1 and the mid-frame bracket 2 are disposed inside the housing 14 and are located above and below the bearing 15, respectively. The mid-frame bracket 2 is connected to the inner ring of the bearing 15. The button bracket 1 and the mid-frame bracket 2 are connected. The main board 3 is disposed between the button bracket 1 and the mid-frame bracket 2. The metal button 4 is located above the button bracket 1. The antenna feeding mechanism 5 is disposed between the button bracket 1 and the main board 3 and is connected to both the main board 3 and the metal button 4. By using the metal button 4 as the radiating element of the antenna, the wireless knob controller eliminates the need for a separate antenna body, providing good antenna radiation performance while saving space and cost.

[0104] Second embodiment:

[0105] like Figures 15-17 As shown, the wireless knob controller in this embodiment has a structure that is basically the same as that in the first embodiment, except that the structure of the antenna feeding mechanism 5 and the connection method between the antenna feeding mechanism 5 and the metal connector 6 and the motherboard 3 are different.

[0106] like Figure 15 and Figure 18 As shown, the antenna feeding mechanism 5 includes a metal ring 54, a support frame 55, and a feeding pin 56. The metal ring 54 is positioned above the support frame 55, and one end of the feeding pin 56 is located below the support frame 55, with the other end passing through the support frame 55 and connecting to the metal ring 54. The support frame 55 has a central hole, and the metal ring 54, after being mounted on the support frame 55, is coaxially aligned with the central hole. The support frame 55 has insulating properties and can be made of plastic material, used to support and fix the metal ring 54.

[0107] The antenna feeding mechanism 5 can be first fixed to the motherboard 3 using double-sided tape or glue, and then the feeding pin 56 can be soldered to the motherboard 3 using a soldering iron or solder wire. The antenna feeding mechanism 5 is located in the mounting cavity 81 of the antenna bracket protective pad 8, and the support platform of the motherboard 3 is located in the center hole of the support frame 55. After the metal connector 6 is connected to the metal knob, the metal connector 6 is located inside the metal ring 54 and has a coupling feeding distance between it and the metal ring 54. The antenna feeding mechanism 5 and the metal connector 6 transmit or receive signals to the metal button 4 through a non-contact coupling feeding method. In this embodiment, the coupling feeding distance is 0.5mm.

[0108] Figure 24 An amplitude diagram of the S11 parameters for an antenna covering WiFi 2.4G is shown. S11 is used to describe the reflection characteristics of signals in microwave and radio frequency circuits. Figure 25 and Figure 24It is the same antenna matching type. Figure 25 This refers to the antenna efficiency under this antenna matching configuration; the WiFi 2.4G antenna efficiency reaches over -0.36dB.

[0109] The wireless knob controller of this embodiment includes a housing 14, a bearing 15, a button bracket 1, a mid-frame bracket 2, a main board 3, a metal button 4, and an antenna feeding mechanism 5. The bearing 15 is installed inside the housing 14. The button bracket 1 and the mid-frame bracket 2 are disposed inside the housing 14 and are located above and below the bearing 15, respectively. The mid-frame bracket 2 is connected to the inner ring of the bearing 15. The button bracket 1 and the mid-frame bracket 2 are connected. The main board 3 is disposed between the button bracket 1 and the mid-frame bracket 2. The metal button 4 is located above the button bracket 1. The antenna feeding mechanism 5 is disposed between the button bracket 1 and the main board 3 and is connected to both the main board 3 and the metal button 4. By using the metal button 4 as the radiating element of the antenna, the wireless knob controller eliminates the need for a separate antenna body, providing good antenna radiation performance while saving space and cost.

[0110] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A wireless rotary controller, characterized in that, The wireless rotary controller includes: The outer casing (14) has an axially extending receiving cavity (141); The bearing (15) is installed in the accommodating cavity (141); A button bracket (1) is disposed within the accommodating cavity (141) and located above the bearing (15); The middle frame bracket (2) is disposed in the accommodating cavity (141) and located below the bearing (15). The inner ring of the bearing (15) is connected to the middle frame bracket (2) through a plurality of second connectors (16). The middle frame bracket (2) and the button bracket (1) are connected through a plurality of third connectors (17). The motherboard (3) is disposed between the button bracket (1) and the middle frame bracket (2); A metal button (4) is located above the button bracket (1); An antenna feeding mechanism (5) is disposed between the button bracket (1) and the main board (3), and the antenna feeding mechanism (5) is connected to the main board (3) and the metal button (4) respectively.

2. The wireless knob controller according to claim 1, characterized in that, The wireless knob controller also includes a metal connector (6) that connects the antenna feeding mechanism (5) and the metal button (4).

3. The wireless knob controller according to claim 2, characterized in that, The wireless knob controller also includes an antenna feed bracket (7), which is installed on the side of the button bracket (1) near the antenna feed mechanism (5), and the antenna feed mechanism (5) is installed between the antenna feed bracket (7) and the main board (3).

4. The wireless knob controller according to claim 3, characterized in that, The button bracket (1) has a through groove (101), the metal button (4) has a connection hole (41), the antenna feed bracket (7) has a through hole (71), and the metal connector (6) is connected to the connection hole (41) through the through hole (71) and the through groove (101).

5. The wireless knob controller according to claim 4, characterized in that, The wireless rotary controller also includes: Antenna bracket protective pad (8) is installed on the side of the antenna feed bracket (7) near the main board (3); A buffer pad (9) is installed on the side of the metal connector (6) near the motherboard (3); Multiple first connectors (10) are connected to the button bracket (1) via the motherboard (3), the antenna bracket protective pad (8), and the antenna feed bracket (7).

6. The wireless knob controller according to claim 1, characterized in that, The wireless knob controller also includes a power supply structure (11) and a magnetic component (12), which are respectively disposed in the middle frame bracket (2). The power supply structure (11) is connected to the motherboard (3).

7. The wireless knob controller according to claim 6, characterized in that, The wireless knob controller also includes a battery cover assembly (13) attached to the bottom of the mid-frame bracket (2) to seal the power supply structure (11) and the magnetic element (12).

8. The wireless knob controller according to claim 7, characterized in that, The battery cover assembly (13) includes: Battery cover (131) is attached to the bottom of the middle frame bracket (2); A battery cover metal plate (132) is disposed on the side of the battery cover (131) away from the power supply structure (11); A battery cover trim (133) covers the outside of the battery cover metal plate (132).

9. The wireless knob controller according to claim 5, characterized in that, The antenna feeding mechanism (5) includes a copper ring (51), a radio frequency cable (52) and a copper sheet (53). The core wire of the first end of the radio frequency cable (52) is soldered to the copper ring (51), the outer conductor of the first end of the radio frequency cable (52) is soldered to the copper sheet (53), and a connector is connected to the second end of the radio frequency cable (52). The connector is connected to the motherboard (3), the copper sheet (53) is located between the antenna feed bracket (7) and the antenna bracket protective pad (8), and the metal connector (6) passes through the copper ring (51), the through hole (71), and the through groove (101) and connects to the connection hole (41).

10. The wireless knob controller according to claim 2, characterized in that, The antenna feeding mechanism (5) includes a metal ring (54), a support frame (55), and a feeding pin (56). The metal ring (54) is disposed above the support frame (55). One end of the feeding pin (56) is located below the support frame (55), and the other end passes through the support frame (55) and connects to the metal ring (54). The metal connector (6) is located inside the metal ring (54) and has a coupling feeding gap with the metal ring (54).

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