An encoding switch and a vehicle-mounted electronic device

Abstract

The utility model discloses a kind of coding switch and vehicle-mounted electronic equipment, wherein coding switch includes metal shell, circuit board and conducting part are arranged in metal shell, wireless communication unit and encoder are arranged on circuit board and are electrically connected, metal shell is electrically connected with wireless communication unit by conducting part, to radiation signal. Visible, the coding switch of the utility model, metal shell is used as antenna, antenna does not need to be set on circuit board, circuit board antenna avoids empty area, reduce the circuit board area, reduce the whole machine volume;While metal shell is directly used as radiator, avoid the signal attenuation problem of built-in antenna by metal shell, improve radio frequency efficiency. Therefore, the coding switch of the utility model, realize the volume reduction and radio frequency performance synchronous optimization, and the vehicle-mounted electronic equipment using this coding switch, place flexibility is higher, make user use more convenient.

Description

Technical Field

[0001] This utility model relates to the field of coding switch technology, and in particular to a coding switch and vehicle-mounted electronic equipment. Background Technology

[0002] Driven by the wave of intelligent technology, car cockpits are evolving towards full-domain intelligence, leading to a surge in demand for in-vehicle BLE (Bluetooth Low Energy) devices. Among these, in-vehicle BLE rotary switches have recently become very popular. Interacting with the vehicle's infotainment system via BLE, the rotary switch can control the system through clockwise, counter-clockwise, or pressing operations. For example, clockwise rotation turns on the air conditioning, while counter-clockwise rotation closes the windows. The system can also be used to customize the rotary switch's operation, allowing for convenient and quick control by the driver. Rotary switches are often placed haphazardly in the car, and their placement in narrow areas, such as the side of the steering wheel or door handles, is crucial for ease of use. Therefore, smaller rotary switches are needed to fit into these confined spaces.

[0003] Currently, rotary switches mostly use onboard antennas or ceramic antennas. The electromagnetic radiation of these antennas requires a reserved area for protection, which makes it difficult to compress the circuit board area and limits the overall size of the device. At the same time, the built-in antenna is susceptible to interference in metal casing scenarios, resulting in significant attenuation of radio frequency performance and affecting communication stability. Utility Model Content

[0004] To address the aforementioned shortcomings, the technical problem to be solved by this utility model is to provide an encoding switch and an in-vehicle electronic device that reduces the overall size of the device by reusing the metal casing, simultaneously optimizes radio frequency performance, and reduces the size of the in-vehicle electronic device.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] An coded switch includes a metal housing, within which a circuit board and conductive components are disposed. The circuit board is provided with an electrically connected wireless communication unit and an encoder. The metal housing is electrically connected to the wireless communication unit through the conductive components to radiate signals.

[0007] In a preferred embodiment, the metal casing includes a lower casing and a metal upper cover disposed on the lower casing, wherein the metal upper cover is electrically connected to the wireless communication unit through the conductive element.

[0008] In a preferred embodiment, an antenna is provided on the outer side of the metal casing, and the antenna is electrically connected to the conductive component.

[0009] In a preferred embodiment, the antenna is embedded on the outside of the metal casing.

[0010] In a preferred embodiment, the conductive component is a miniature coaxial cable, one end of which is electrically connected to the wireless communication unit, and the other end of which is electrically connected to the metal casing.

[0011] In a preferred embodiment, the metal upper cover is rotatably connected to the lower shell, and the metal upper cover is connected to the encoder.

[0012] In a preferred embodiment, the wireless communication unit is a Bluetooth communication unit.

[0013] In a preferred embodiment, the coding switch is further provided with an indicator light, which is electrically connected to the Bluetooth communication unit.

[0014] In a preferred embodiment, the miniature coaxial cable is connected to the circuit board via a connector, or the miniature coaxial cable is soldered onto the circuit board.

[0015] An in-vehicle electronic device includes the aforementioned coded switch.

[0016] The beneficial effects of this utility model after adopting the above technical solution are:

[0017] The coded switch and vehicle-mounted electronic device of this invention include a metal housing, within which a circuit board and conductive components are housed. The circuit board houses an electrically connected wireless communication unit and an encoder. The metal housing is electrically connected to the wireless communication unit via the conductive components to radiate signals. Therefore, the coded switch of this invention uses the metal housing as an antenna, moving the antenna from the circuit board in existing technologies to the metal housing. This eliminates the need for antenna clearance on the circuit board, reducing the circuit board area and overall device size. Simultaneously, the metal housing directly acts as a radiator, avoiding signal attenuation issues caused by the metal housing to the built-in antenna and improving radio frequency efficiency. Thus, the coded switch of this invention achieves simultaneous size reduction and radio frequency performance optimization. Vehicle-mounted electronic devices using this coded switch offer greater placement flexibility and greater user convenience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the coded switch in this utility model;

[0019] Figure 2 This is a top view of the coded switch in this utility model;

[0020] In the diagram: 1-Metal casing, 10-Metal top cover, 11-Lower casing, 2-Circuit board, 3-Antenna, 4-Miniature coaxial cable. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0023] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] like Figure 1 and Figure 2 As shown, according to an embodiment of the first aspect of this utility model, the coded switch includes a metal housing 1, within which a circuit board 2 and a conductive component are disposed. The circuit board 2 is provided with an electrically connected wireless communication unit and an encoder. The metal housing 1 is electrically connected to the wireless communication unit via the conductive component to radiate signals. It is evident that the coded switch of this utility model uses the metal housing 1 as an antenna, eliminating the need for an antenna on the circuit board 2, thus saving the antenna clearance area on the circuit board 2, reducing the area of ​​the circuit board 2, and decreasing the overall size of the device. Simultaneously, because this utility model directly uses the metal housing 1 as a radiator, it avoids the signal attenuation problem of the metal housing 1 on the built-in antenna, improves radio frequency efficiency, ensures the stability of signal transmission, and achieves simultaneous optimization of size reduction and radio frequency performance.

[0025] like Figure 1 and Figure 2 As shown, in some other embodiments of this utility model, an antenna 3 is provided on the outside of the metal shell 1. The antenna 3 is electrically connected to the conductive component. In this case, the radiator includes the metal shell 1 and the antenna 3. The antenna 3, which is located on the circuit board 2 in the prior art, is moved to the metal shell 1. In a preferred embodiment, the antenna 3 is embedded in the metal shell 1. This structure of the coded switch reduces the overall size of the device and improves the radio frequency efficiency.

[0026] like Figure 1 and Figure 2 As shown, the conductive component in this invention can be, but is not limited to, a miniature coaxial cable 4, which facilitates the consistency of signal transmission. One end of the miniature coaxial cable 4 is electrically connected to the wireless communication unit, and the other end of the miniature coaxial cable 4 is electrically connected to the metal casing 1. When an antenna 3 is provided on the outside of the metal casing 1, the antenna 3 is also electrically connected to the other end of the miniature coaxial cable 4.

[0027] In some embodiments of this invention, the miniature coaxial cable 4 is connected to the circuit board 2 via a connector, and the connector is electrically connected to the wireless communication unit on the circuit board 2. In other embodiments of this invention, the miniature coaxial cable 4 can be soldered onto the circuit board 2 via pads, and then electrically connected to the wireless communication unit via printed circuits on the circuit board 2.

[0028] In this invention, the other end of the miniature coaxial cable 4 can be electrically connected to the metal casing 1 through contact (contact point).

[0029] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the metal shell 1 includes a lower shell 11 and a metal upper cover 10 disposed on the lower shell 11. The metal upper cover 10 is electrically connected to a conductive component. In this case, the circuit board 2 can be disposed inside the lower shell 11, and the metal upper cover 10 can be reused as an antenna.

[0030] In this invention, the metal upper cover 10 can be rotatably connected to the lower shell 11. At this time, the encoder collects the rotation action of the metal upper cover 10 and outputs the corresponding pulse signal to the wireless communication unit. The wireless communication unit then outputs the corresponding wireless signal according to the pulse signal. This wireless signal is radiated through the metal shell 1 or through the metal shell 1 and the antenna 3.

[0031] In some other embodiments of this utility model, the encoder collects the pressing action. In this case, it is not limited to the metal upper cover 10 and the lower shell 11 being rotatably connected. When the encoder collects the pressing action, it outputs the corresponding pulse signal.

[0032] In some embodiments of this utility model, the wireless communication unit is a Bluetooth communication unit. Of course, the wireless communication unit can also be WIFI, etc. When the wireless communication unit does not include a microprocessor MCU, a microprocessor MCU is provided on the circuit board 2 of the encoder switch. The microprocessor MCU is electrically connected to the wireless communication unit and the encoder respectively.

[0033] In some embodiments of this invention, the encoder switch is also equipped with an indicator light, which is electrically connected to a Bluetooth communication unit. The Bluetooth communication unit can indicate the current status of the encoder by controlling the on / off state of the indicator light. Of course, multiple indicator lights can be set on the encoder switch to indicate the status by emitting different colors of light. Since the indicator lights are small, other components, such as digital tubes, can be set to indicate the working status if the size allows.

[0034] According to an embodiment of the second aspect of the present invention, the vehicle-mounted electronic device includes the coded switch of the first aspect of the present invention, and the vehicle-mounted electronic device may be a vehicle-mounted BLE rotary switch.

[0035] This invention relates to an in-vehicle electronic device. Due to the small size of the encoder switch used, it can be placed in confined spaces, making it suitable for environments with limited space and increasing its flexibility. During use, the encoder detects any movement, such as pressing or rotating. When the encoder detects movement, it outputs a corresponding pulse signal to the Bluetooth communication unit (MCU). The Bluetooth communication unit (MCU) then outputs a corresponding wireless signal based on the different pulse signals. This wireless communication is radiated through a metal casing. When the in-vehicle control system receives the wireless signal, it completes the corresponding control action.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, improvements to equivalent coding switches and vehicle electronic devices made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An coded switch, characterized in that, The device includes a metal casing, inside which a circuit board and conductive components are disposed. The circuit board is provided with an electrically connected wireless communication unit and an encoder. The metal casing is electrically connected to the wireless communication unit through the conductive components to radiate signals.

2. The encoding switch according to claim 1, characterized in that, The metal casing includes a lower shell and a metal upper cover disposed on the lower shell. The metal upper cover is electrically connected to the wireless communication unit through the conductive element.

3. The encoding switch according to claim 1 or 2, characterized in that, An antenna is provided on the outside of the metal casing, and the antenna is electrically connected to the conductive component.

4. The encoding switch according to claim 3, characterized in that, The antenna is embedded on the outside of the metal casing.

5. The encoding switch according to claim 1, characterized in that, The conductive component is a miniature coaxial cable, one end of which is electrically connected to the wireless communication unit, and the other end of which is electrically connected to the metal casing.

6. The encoding switch according to claim 2, characterized in that, The metal upper cover is rotatably connected to the lower shell, and the metal upper cover is connected to the encoder.

7. The encoding switch according to claim 1, characterized in that, The wireless communication unit is a Bluetooth communication unit.

8. The encoding switch according to claim 7, characterized in that, The coding switch is also equipped with an indicator light, which is electrically connected to the Bluetooth communication unit.

9. The encoding switch according to claim 5, characterized in that, The miniature coaxial cable is connected to the circuit board via a connector, or the miniature coaxial cable is soldered onto the circuit board.

10. A vehicle-mounted electronic device, characterized in that, Includes the coded switch as described in any one of claims 1 to 9.

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