CN202340212U

CN202340212U - Inductive touch key

Info

Publication number: CN202340212U
Application number: CN2011203942340U
Authority: CN
Inventors: 匡勇兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-10-09
Filing date: 2011-10-09
Publication date: 2012-07-18
Anticipated expiration: 2021-10-09

Abstract

The utility model discloses an inductive touch key, which comprises an inductive touch sensor and a singlechip measuring control circuit, wherein the inductive touch sensor consists of a panel and a circuit board which are closely fixed together; an induction coil is distributed on the circuit board; and a surface of the panel in contact with the circuit board is provided with a circular accommodating cavity of which the radius is greater than that of the induction coil. The inductive touch key does not depend on a human body or field effect, and pressure applied to the key is non-related to attribute of an object, so that the inductive touch key can be applied to an electric product of which a metal panel such as a stainless steel panel or an aluminum panel is required to be adopted and seamless sealing is required for the appearance, and the appearance design scheme of the product is more diverse; and since the trigger mechanisms are different, the work of the inductive touch key is still stable and reliable at moist places or at places where a user operates with gloves.

Description

Inductance induction type touch key-press

Technical field:

The utility model relates to touch induction technical field, especially relates to a kind of touch key-press of judging triggering through the variation of measuring the electromagnetic induction energy.

Background technology:

As a kind of replacement scheme of conventional button formula user interface, be applied on the various electronic products to the touch sensing applied more and more, not only can improve reliability, touch sensing also helps to realize sealing fully and being imbued with the design of modern sense.At present most widely used is the capacitance touch sensing technology; But its triggering is the capacity effect that relies on human body; Having determined it to be not suitable for being applied to key panel is metal material and the occasion that requires sealing, thereby need seek other a kind of scheme in this application scenario and replace the capacitor induction type touch key-press.

The utility model content:

The purpose of the utility model is the weak point that exists to prior art and a kind of inductance induction type touch key-press is provided that it can be applicable on the household appliances of appearance requirement sealing, and working stability is reliable.

For realizing above-mentioned purpose; The inductance induction type touch key-press of the utility model includes inductance type touch sensor and single chip computer measurement control circuit; Wherein, The inductance type touch sensor is made up of panel that closely is fixed together and the circuit board that is distributed with induction coil, and the one side that panel contacts with circuit board offers the circular containing cavity of radius greater than induction coil.

The position of the corresponding containing cavity of described panel surface offers the external diameter annular pocket consistent with induction coil.

Pass through screw or adhesive securement between described panel and the circuit board together.

The beneficial effect of the utility model is: it does not rely on human body or field effect; The attribute of applied pressure and object is irrelevant on button; Therefore can be applicable to metal deckings such as needing to adopt stainless steel or aluminium and on the electric product of the seamless sealing of appearance requirement, make the appearance design scheme variation more of product; Secondly, because the mechanism that triggers is different, inductance induction type touch key-press is worn under the occasion of gloves operation in humidity or user, and its work is still reliable and stable.

Description of drawings:

Below in conjunction with accompanying drawing the utility model is done further explanation:

Fig. 1 is the system configuration sketch map of the utility model;

Fig. 2 is the decomposition texture sketch map of the inductance type touch sensor of the utility model;

Fig. 3 is the sectional structure sketch map of the metal decking of the utility model;

Fig. 4 is the operation principle sketch map of the inductance type touch sensor of the utility model.

Embodiment:

The following stated is the preferred embodiment of the utility model, does not therefore limit the protection range of the utility model.

See shown in accompanying drawing 1 to the accompanying drawing 4: the inductance induction type touch key-press of the utility model includes inductance type touch sensor 10 and single chip computer measurement control circuit 20; Wherein, Inductance type touch sensor 10 is made up of panel 11 and the circuit board 12 that is distributed with induction coil 121, and panel 10 is in the same place through screw or adhesive securement with circuit board 12.The one side that panel 11 contacts with circuit board 12 offers the circular containing cavity 111 of radius greater than induction coil 121, and the position of panel 10 surperficial corresponding containing cavities 111 offers the consistent annular pocket with certain width and degree of depth 112 of external diameter and induction coil 121.

Panel 11 can be metal conductive materials and processes, like stainless steel, aluminium etc.; Also can be by the electrically non-conductive material injection mo(u)lding, but circular containing cavity 111 domestic demands are sticked the conduction label.

The operation principle of the utility model is: after staff is pressed on the panel 11; Panel 11 can produce small crooked deformation; The induction coil 121 of panel 11 on circuit board 12 drawn close; Cause the magnetic flux generation minor variations between panel 11 and the circuit board 12, and then cause that the electric current in the induction coil 121 produces minor variations, system judges thus to have produced once and touches.

Claims

1. inductance induction type touch key-press; It is characterized in that: it includes inductance type touch sensor (10) and single chip computer measurement control circuit (20); Wherein, Inductance type touch sensor (10) is made up of panel that closely is fixed together (11) and the circuit board (12) that is distributed with induction coil (121), and the one side that panel (11) contacts with circuit board (12) offers the circular containing cavity (111) of radius greater than induction coil (121).

2. inductance induction type touch key-press according to claim 1 is characterized in that: the position of the surperficial corresponding containing cavity of described panel (10) (111) offers the external diameter annular pocket (112) consistent with induction coil (121).

3. inductance induction type touch key-press according to claim 1 and 2 is characterized in that: pass through screw or adhesive securement between described panel (11) and the circuit board (12) together.