CN205232186U - Touch panel with LED instruction function - Google Patents

Abstract

The utility model is suitable for a touch key technical field provides a touch panel with LED instruction function, include: inferior gram force board, a plurality of spring, PCB board, a plurality of LED lamp, inferior gram force board with PCB board relatively fixed, have a plurality of buttons on the inferior gram force board, every spring one end with press the key -type connection, the other end passes through the PCB board and is connected with the touch -control chip of installing on the PCB board for pass to the touch -control chip with voltage, when the button of touch ya keli board, voltage passes to the PCB board through the spring, as the touch -control chip assay of PCB board during to voltage, operate the IO mouth of being connected with main IC, make voltage pass to main IC, corresponding action is carried out to main IC discernment magnitude of voltage, simultaneously, control the IO mouth of being connected with current LED lamp, make the lamp that corresponds with the button become bright. The utility model provides a touch panel, button have the bright lamp of corresponding LED lamp and come the suggestion person of controlling according to after going down.

Description

A kind of contact panel with LED deixis

Technical field

The utility model belongs to touch controlled key technical field, particularly relates to a kind of contact panel with LED deixis.

Background technology

Traditional touch panel operation principle is: pressed by touch-control, and short circuit connects conducting, and then separates magnitude of voltage by peripheral divider resistance; Then magnitude of voltage is sent into main IC (integrated circuit), main IC identifies magnitude of voltage, and performs corresponding action.This traditional touch panel mechanical structure more complicated; And its button is mechanical, when the button of a manipulation touch panel, without any relevant information prompting operator, user is difficult to know whether button is successful.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of contact panel with LED deixis, is intended to solve touch panel complicated in mechanical structure of the prior art and its button does not have the problem of prompt facility.

The utility model is achieved in that a kind of contact panel with LED deixis, comprising: acrylic board, some springs, pcb board, some LED;

Described acrylic board is relative with described pcb board fixing; Described acrylic board has some buttons, and each spring one end is connected with described button, and the other end is connected with the touch chip be arranged on pcb board by pcb board, for voltage is passed to touch chip; Position corresponding with button on described pcb board is provided with described LED, and described LED is connected with the I/O port of the touch chip of described pcb board.

Further, described acrylic board and described pcb board are screwed.

Compared with prior art, beneficial effect is the utility model: a kind of contact panel with LED deixis that the utility model provides, and carry out transmission voltage value to main IC by external acrylic board, spring and bottom pcb board, main IC performs corresponding action again; Its integrated level is higher, and more frivolous; The button of this contact panel adds the effect of bright light simultaneously, after button presses down, has corresponding LED bright light to point out manipulator.

Accompanying drawing explanation

Fig. 1 is the structural representation with the contact panel of LED deixis that the utility model embodiment provides;

Fig. 2 is the structural representation of the acrylic board that the utility model embodiment provides.

Embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.

The thought that mainly realizes of the present utility model is: when the finger touch of people is to when acrylic board, finger static electrification, spring below acrylic board, voltage is delivered to pcb board, a touch chip is had inside pcb board, touch chip detects that voltage changes, the input/output port be connected with main IC will be operated, export ADC (analog signal being converted to the transducer of the digital signal) value of different voltage, and the ADC value of different voltage is sent into main IC, for main IC judges to provide sampled value; The I/O port simultaneously controlling current LED operates, and lamp is brightened.

Lower mask body introduces this contact panel with LED deixis, and as shown in Figure 1, described contact panel comprises: acrylic board 1, some springs 2, pcb board 3, some LED 4;

Described acrylic board 1 is relative fixing with described pcb board 3; Described acrylic board 1 has some buttons, and each spring 2 one end is connected with described button, and the other end is connected with the touch chip be arranged on pcb board 3 by pcb board 3, for voltage is passed to touch chip; On described pcb board 3, the position corresponding with button is provided with LED 4, and described LED 4 is connected with the I/O port of the touch chip of described pcb board 3;

Described acrylic board 1 is screwed with described pcb board 3; Be illustrated in figure 2 the structural representation of acrylic board 1.Finger static electrification, when the button of the finger touch acrylic board 1 of people, voltage is passed to pcb board 3 by spring by acrylic board 1; When the touch chip of pcb board 3 detects that voltage changes, operate the I/O port be connected with main IC, make voltage pass to main IC, main IC identifies magnitude of voltage and performs corresponding action; Meanwhile, control the I/O port be connected with current LED 4, the lamp corresponding with button is brightened.

A kind of contact panel with LED deixis that the utility model provides, carrys out transmission voltage value by external acrylic board, spring and bottom circuit board; Its integrated level is higher, and more frivolous; The button of this contact panel adds the effect of bright light simultaneously, and after button presses down, corresponding LED can bright light prompting.

The touch controlled key with bright light prompt facility that the utility model provides can be used for the fields such as consumer electronics (mobile phone, microwave oven, refrigerator), can be used for medical display aspect simultaneously.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.

Claims (2)

1. there is a contact panel for LED deixis, it is characterized in that, comprising: acrylic board, some springs, pcb board, some LED;

Described acrylic board is relative with described pcb board fixing; Described acrylic board has some buttons, and each spring one end is connected with described button, and the other end is connected with the touch chip be arranged on pcb board by pcb board, for voltage is passed to touch chip; Position corresponding with button on described pcb board is provided with described LED, and described LED is connected with the I/O port of the touch chip of described pcb board.

2. contact panel as claimed in claim 1, it is characterized in that, described acrylic board and described pcb board are screwed.