CN2535693Y

CN2535693Y - Contact-free button-function panel apparatus for fume-removing machine

Info

Publication number: CN2535693Y
Application number: CN 02200361
Authority: CN
Inventors: 陈大修
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-04
Filing date: 2002-01-04
Publication date: 2003-02-12
Anticipated expiration: 2012-01-04

Abstract

The utility model relates to a no-touch key-press functional panel device of a smoke exhaust ventilator comprising a main controller, groups of infrared transceivers which is connected with the main controller and an LCD which is connected with the main controller, wherein every group of infrared transceivers is arranged separately on corresponding key-press position of the panel. When users approach a fixed key-press with hands, infrared ray of the infrared transceivers will be reflected and corresponding electronic signal of the infrared transceivers will be sent to the main controller thereby starting the function of the fixed key-press. Therefore, the key-presses of the panel is provided with no-touch function thereby the utility model can operated conveniently and the panel can be kept clean.

Description

The contact-free keypress function face equipment of smoke exhaust

Technical field

The utility model relates to smoke exhaust, especially a kind of contact-free keypress function face equipment of smoke exhaust, it is responded an electronic signal with the hand that utilizes the induction user, and starts the relative function of this button by the infrared transceiver group that is arranged at panel specific keys position.

Background technology

General commercially available smoke exhaust still adopts the mechanical type button mostly, correlation functions such as control motor rotary speed or unlatching electric light, these buttons mostly are the design of evagination in the mist extractor casing greatly, and these designs not only need greasy when culinary art, the wet glutinous hand of the long-term user of reception, and be stained with glutinous dirt thereon, and under the very big environment for use of oil smoke, also the accumulation because of long-term oil smoke is difficult to clean, and destroys the cleaning of smoke exhaust panel.

From the above, though having the part machine to have automatic commentaries on classics, present commercially available smoke exhaust cuts rotating speed, and need not press of key switch in using, and really can reduce button and cause cleaning difficulty, but still touching can't exempt power supply or electric light and open and close the time because of greasy dirt, be with, the raised type mechanical key panel designs of commonly using, really existing has congenital adverse factors, so cause the inconvenience in the use, therefore is necessary to provide further solution.

Summary of the invention

For this reason, fundamental purpose of the present utility model provides a kind of contact-free keypress function face equipment of smoke exhaust, detect the user point near after, automatically start the function of corresponding button, and reach the function of contact-free button, with this, can provide the plane type key that can not attach oil smoke, and isolate fully with the wet and slippery finger of user culinary art, provide one can keep clean and the key panel of handled easily by this.

Desire to reach above-mentioned purpose, the contact-free keypress function face equipment of smoke exhaust of the present utility model comprises a plane formula panel, forms the button pattern of a plurality of sign specific functions on this panel, and a control circuit, and this control circuit includes:

One master controller;

The plural groups infrared transmitter, each is organized the infrared transmitter correspondence and is arranged at button pattern inboard on the panel, and promptly infrared light beam is outwards launched, and its output terminal is connected to the input end of this master controller;

The plural groups infrared receiver, correspondence is arranged at button pattern inboard on the panel respectively, and corresponding being positioned on the beam reflection direction of infrared transmitter, and its output terminal is connected to the input end of this master controller;

One display sees through one drive circuit and is connected to this master controller;

One prompting sound circuit is connected to the output terminal of this master controller, when starting as the reaction button, and the usefulness of informing the user;

Above-mentioned key panel device is owing to be provided with plural groups infrared/receiver, therefore matrix-scanning detecting mode is adopted in this main control, whole infrared transmitter is lighted in regular turn, whether there is object approaching with detecting, if the user at a specific keys near the time, can make the infrared ray of the inboard infrared transmitter emission of this button, because of stopping to produce, finger reflects by after the infrared receiver reception, export an electronic signal to this master controller, start the specific function of this button again by this master controller; Be with, by the use of this infrared receiver and infrared transmitter, reach contact-free button design, and be located at the panel inboard because of these perceptrons, be not subjected to oil smoke and be stained with glutinous doubt so do not have, be one practical and design easily really.

Description of drawings

Fig. 1: a position of the present utility model is provided with figure, and it discloses the relative position that this infrared/receiver is arranged at a smoke exhaust;

Fig. 2: a part of cut-open view of the present utility model, it discloses the relative position synoptic diagram between panel, infrared/receiver and transparent panel;

Fig. 3 a: circuit block diagram of the present utility model;

Fig. 4 a: detailed circuit diagram of the present utility model.

The figure number part:

10 key panel devices, 101 panels

102 transparent panels, 11 button patterns

12 master controllers, 13 time-base generators

14 infrared transmitter groups, 141 infrared transmitter

15 infrared receiver groups, 151 infrared receivers

16 displays, 161 driving circuits

17 prompting sound circuits, 171 hummers

20 casings, 21 power circuits

22 bulbs, 221 switches

23 motors, 231 motor commutation circuits

Embodiment

The utility model is that a kind of user exempts to touch the panel that can start specific keys, at first see also Figure 1 and Figure 2, this key panel device 10 can be embedded in the appropriate location on the smoke exhaust casing 20, it comprises the panel 101 that an outside surface is formed with a plurality of button patterns 11, and can establish a transparent panel 102 again in its outer face, and a control circuit, seeing also Fig. 3 and shown in Figure 4, this control circuit includes:

One master controller 12 connects a time-base generator 13 on the basic at that time pin, wherein this master controller 12 can be a microprocessor;

Infrared transmitter group 14 be made up of a plurality of infrared transmitter 141, and each infrared transmitter 141 is connected to the output terminal of this master controller 12, and is arranged at the pairing button pattern of panel inboard, and promptly infrared light beam is outwards launched;

Infrared receiver group 15, form by a plurality of infrared receivers 151, be connected to each corresponding input end on this master controller 12 respectively and respectively organize infrared receiver 151, and same correspondence is arranged at button pattern inboard on the panel, and corresponding being positioned on the beam reflection direction of infrared transmitter 141, that is each pattern disposes one group of infrared/receiver 141,151;

One display 16 sees through the output terminal that one drive circuit 161 is connected to this master controller 12, in order to show the user mode of present smoke exhaust, as states such as tachometer value, bulb keyings; This display 16 can be a LCD;

One prompting sound circuit 17, it is made up of the hummer 171 that a transistor Q1 and is connected to this transistor Q1, wherein the base terminal of this transistor Q1 is connected to the output terminal of this master controller 12, when button starts, master controller 12 can be exported a driving voltage, after making transistor Q1 conducting, make hummer 171 actions produce the prompting sound.

See also shown in Figure 2 again, because this key panel device 10 is a planar design and is embedded on the casing 20, except that can being easy to cleaning, also can see through the setting of infrared transmitter 141 and infrared receiver 151, really constitute a kind of keypress function of contact-free, and be provided with a display 16 thereon, thus can show present speed revolution value at any time thereon, and make the present operating condition of user's clear understanding smoke exhaust.

More than be circuit design drawing of the present utility model, below only cooperate and illustrate its operating principle as the back:

See also shown in Figure 2, because relative each button pattern 11 is provided with one group of infrared transmitter 141 and infrared receiver 151 on the key panel device, as shown in Figure 3, and master controller 12 carries out one scan detecting action for infrared transmitter group 14,, each infrared transmitter 141 outwards launches infrared ray so that being lighted in regular turn, at this moment, if user's finger prick to specific keys pattern 11 near the time, then can reflect this infrared ray infrared receiver 151 extremely on the same group, at this moment, this infrared receiver 151 will be imported an electronic signal to this master controller 12, after treating that this master controller 12 receives this signal, send a drive signal immediately to this prompting sound circuit 17,, send a sound and drive hummer 171 to make transistor Q1 conducting;

In addition, master controller 12 promptly begins to judge the function of these button pattern 11 representatives, and then export the specific device that controls signal to of this button pattern 11, please cooperate consult shown in Figure 1, as the infrared receiver 151 that is arranged at turbo pattern 11 receives the infrared ray of infrared transmitter 141 on the same group, be that master controller 12 can output one control signal to motor commutation circuit 231, to make this motor 23 switch to specific rotation speeds, or the switch 221 of connection bulb 22, also or start power circuit 21 smoke exhaust is started, in addition, this display 16 also can show the rotating speed of present motor 23 runnings thereon.

By being as can be known, the user only needs can start near this button pattern the function of this button, in order to user's handled easily, add that button also can send the sound when starting, to remind the user that button starts by this, be with, the utility model can't not understood the doubt whether button has started because of no actual contact.

In addition,, in addition,,, also can add the use of embossing, sandblast simultaneously thereon, make panel present the design of multiple pattern to keep the cleaning of panel so this panel surface can be provided with a transparent panel because this key panel can be embedded on the casing.

Claims

1, a kind of contact-free keypress function face equipment of smoke exhaust, it is characterized in that: be embedded in an appropriate location of smoke exhaust casing, it includes the panel that an outside surface forms plural button pattern, and a control circuit, and this control circuit further includes:

One master controller;

The plural groups infrared transmitter, each is organized infrared transmitter and is connected with the output terminal of master controller respectively, and correspondence is arranged at button pattern inboard on the panel, even infrared light beam is outwards launched;

The plural groups infrared receiver, each is organized the infrared receiver correspondence and is arranged at button pattern inboard on the panel, and corresponding being positioned on the beam reflection direction of infrared transmitter, and its output terminal is connected to the input end of this master controller;

One prompting sound circuit is connected to the input end of this master controller, when starting as the reaction button, as the usefulness of informing the user;

The corresponding one group of infrared transmitter/infrared receiver of each button pattern of above-mentioned key panel, so when object near the time can the reflected infrared transmitter infrared ray, so that infrared receiver is on the same group received, input to master controller again and start the corresponding key function.

2, the contact-free keypress function face equipment of smoke exhaust as claimed in claim 1, it is characterized in that: the output terminal of this master controller is connected to a display by one drive circuit.

3, the contact-free keypress function face equipment of smoke exhaust as claimed in claim 1 or 2 is characterized in that: this prompting sound circuit is by a transistor that is connected to this master controller, and one is connected to this transistorized hummer and forms.

4, the contact-free keypress function face equipment of smoke exhaust as claimed in claim 2, it is characterized in that: this display is a LCD.

5, the contact-free keypress function face equipment of smoke exhaust as claimed in claim 1, it is characterized in that: the outside surface of this panel can add a transparent panel.