Device and method for detecting switch state
A technology for detecting switches and states, which is applied in the field of electronics and can solve problems such as layout location restrictions, unfavorable electronic product structural design and structural optimization, etc.
Active Publication Date: 2019-07-23
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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Problems solved by technology
[0004] However, this detection method will limit the arrangement position of the switch on the electronic product, which is not conducive to the structural design and structural optimization of the electronic product
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[0018] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0019] The invention provides a device for detecting switch state, such as figure 1 As shown, the device may include a second coil 20 , an oscillation circuit 30 , an oscillation circuit parameter detection circuit 40 and a judging module 50 . Wherein, the second coil 20 is connected in parallel with the detected switch 10; a mutual inductance effect can be generated between the first coil 301 in the oscillating circuit 30 and the second coil 20; the oscillating circuit parameter detection circuit 40 is used to detect the oscillating circuit 30 oscillation circuit parameters; and the judging module 50 is used to obtain the oscillation circuit parameter change o...
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The invention relates to the electronic technical field, and discloses a device and a method for detecting a switch state. The device comprises a second coil, an oscillating circuit, an oscillating circuit parameter detecting circuit and a judging module, wherein the second coil is in parallel connection with a detected switch; a first coil in the oscillating circuit and the second coil can generate a mutual inductance effect; the oscillating circuit parameter detecting circuit is used for detecting oscillating circuit parameters of the oscillating circuit; the judging module is used for obtaining oscillating circuit parameter changes of the oscillating circuit according to the detected oscillating circuit parameters, and determining the state of the detected switch according to the oscillating circuit parameter changes. The device does not limit an arrangement position of the switch, and is beneficial for the structural design and the structural optimization of an electronic product.
Description
technical field [0001] The invention relates to the field of electronic technology, in particular to a device and method for detecting switch states. Background technique [0002] A switch is a commonly used electronic control device, which is widely used in various electronic products, such as consumer electronic products. [0003] At present, the methods for detecting the switch state (such as on, off, etc.) generally require that the switch must be electrically connected to the host through wires before detecting the switch state. [0004] However, this detection method will limit the arrangement position of the switch on the electronic product, which is not conducive to the structural design and structural optimization of the electronic product. Contents of the invention [0005] The purpose of the present invention is to provide a device and method for detecting the state of a switch, which will not restrict the arrangement position of the switch, thereby facilitatin...
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IPC IPC(8): G01R31/327
CPCG01R31/3277
Inventor 张帆王云峰任蓬勃梁三林
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD