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Capacitive sensor

An electrostatic capacitance and sensor technology, applied in the field of electrostatic capacitance sensors, can solve the problem of increased electrostatic capacitance of the detection part, and achieve the effects of reduced resistance, low-cost manufacturing, and high conductivity

Inactive Publication Date: 2016-08-24
SUMITOMO RIKO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a result, the capacitance of the detection unit increases

Method used

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no. 1 approach

[0054] [Structure of Capacitance Sensor]

[0055] First, the structure of the capacitive sensor of this embodiment will be described. in figure 1 A top perspective view of the capacitive sensor of this embodiment is shown in FIG. in figure 2 Medium means figure 1 Section II-II. in image 3 A plan view of the front electrode 01X of the capacitive sensor is shown in. in Figure 4 A plan view of the back electrode 01Y of the capacitive sensor is shown in. in figure 1 , See-through shows members stacked in the front and back directions (thickness). in image 3 , Figure 4 In the drawing, the extended wiring portions 22 and 32 are hatched and shown. Such as figure 1 , figure 2 As shown, the capacitive sensor 1 of this embodiment includes a dielectric layer 10, a front side sheet 20, a back side sheet 30, front side electrodes 01X to 08X, back side electrodes 01Y to 08Y, detection parts A0101 to A0808, and a front side The wiring 01x to 08x, the back side wiring 01y to 08y, ...

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PUM

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Abstract

The capacitive sensor (1) includes: a polymer dielectric layer (10); strip-shaped front side electrodes (01X-08X) arranged on the front side of the dielectric layer (10); arranged on the dielectric layer (10) The strip-shaped back side electrodes (01Y~08Y) on the back side of the back side; the front side wiring (01x~08x) connected to the front side electrode; the back side wiring (01y~08y) connected to the back side electrode; and A plurality of detection parts (A0101 to A0808) formed between the side electrode and the back side electrode. The front-side electrode and the back-side electrode respectively have: an elongated electrode body (21, 31) comprising a binder and a conductive material; (21, 31) A small extended wiring portion (22, 32), wherein the front side wiring and the back side wiring have a volume resistivity smaller than that of the electrode main body (21, 31).

Description

Technical field [0001] The present invention relates to an electrostatic capacitance type sensor capable of detecting surface pressure distribution based on changes in electrostatic capacitance, and in detail, to an electrode and wiring structure thereof. Background technique [0002] For example, as disclosed in Patent Document 1, a front-side electrode and a back-side electrode can be arranged with a dielectric layer interposed therebetween to form an electrostatic capacitance sensor. A plurality of detection parts are formed between the front-side electrode and the back-side electrode that face each other in the front and back directions. If a load is applied to the capacitive sensor, the thickness of the detection portion corresponding to the portion to which the load is applied, that is, the distance between the front-side electrode and the back-side electrode decreases. This increases the capacitance of the detection unit. The electrostatic capacitance sensor detects the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L5/00G01L1/14
CPCG01L1/146G01L1/144G01L1/142
Inventor 前田一之助柴田哲好
Owner SUMITOMO RIKO CO LTD