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Pressure sensing assembly and electronic device having the same

A technology for sensing components and pressure sensors, which is applied in the direction of measuring force, measuring force applied to control elements, measuring devices, etc., can solve the problems of high use cost, high processing accuracy and assembly accuracy requirements, and achieve low cost and high sensitivity. , easy to make and assemble

Pending Publication Date: 2018-06-26
SHENZHEN NEW DEGREE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a pressure sensing component, which aims to solve the technical problems of the existing pressure sensor that require precise positioning and careful bonding, high processing precision and assembly precision, or high cost of use caused by special installation methods

Method used

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  • Pressure sensing assembly and electronic device having the same
  • Pressure sensing assembly and electronic device having the same
  • Pressure sensing assembly and electronic device having the same

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Embodiment Construction

[0048] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0049] see Figure 1 to Figure 4 The pressure sensing component provided by the first embodiment of the present invention includes a pressure sensor 10 and a force transmission plate 20 against the pressure sensor 10. The force transmission plate 20 has a solid area and a hollow area, and the hollow area includes a strain concentration point 21 And the extension vacancy 22 formed by the extension of the strain concentration position 21 towards the surroundings, the pressure sensor 10 includes a pressure measurement circuit, the pressure measurement circuit has at least two resistors R1, R3 (R0), an...

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Abstract

The invention, which belongs to the field of pressure sensing technology, in particular relates to a pressure sensing assembly and an electronic device having the same. When a force transmission plateis bent and deforms, strain concentration occurs at a strain concentration position of the force transmission plate, and thus a strain inductive resistor at the strain concentration position is deformed greatly but a resistor at an entity region is deformed little or is not deformed, so that the strain inductive resistor at the strain concentration position and the resistor in the entity region have different deformation degrees; and then a pressure measuring circuit generates an output signal. The pressure sensing assembly having a compact structure is easy to manufacture and assemble and iscapable of realizing pressure recognition and detection with high sensitivity. The force transmitting plate of the pressure sensing assembly is abutted against the back of a panel to form an electronic device having touch position detection and touch pressure detection capabilities. The electronic device having the pressure sensing assembly does not need the high-precision mounting requirement; and the electronic device has advantages of simple structure, low cost, great convenience in installation and wide application range.

Description

technical field [0001] The invention belongs to the technical field of pressure sensing, in particular to a pressure sensing component and electronic equipment with the pressure sensing component. Background technique [0002] In today's industry, there are already some pressure sensors, such as resistance strain gauge type, capacitance sensing type, and piezoelectric ceramic type. These pressure sensors all form the pressure sensor itself through complex circuit design and structural design. For example, the resistance strain gauge type needs to select strain gauges that meet the resistance and deviation requirements among many produced strain gauges, and at the same time use strain gauges to form a certain circuit structure, and use colloid to connect to the induction structure. The pressure deflection of the strain gauges is low, so the sensing structure needs to be precisely positioned and bonded carefully. For the capacitive sensing type, it is necessary to strictly c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/22G01L5/22
CPCG01L1/2262G01L5/22
Inventor 李灏
Owner SHENZHEN NEW DEGREE TECH
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