CN211744443U

CN211744443U - Touch switch convenient to find

Info

Publication number: CN211744443U
Application number: CN202020446446.8U
Authority: CN
Inventors: 金帝; 徐健
Original assignee: Shanghai Townew Intelligent Technology Co Ltd
Current assignee: Shanghai Townew Intelligent Technology Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-10-23
Anticipated expiration: 2030-03-31

Abstract

The utility model is suitable for an intelligent garbage bin touch switch's technical field discloses a touch switch who conveniently seeks. In order to achieve the purpose, the utility model provides a touch switch which is convenient to find, comprising a touch switch; the touch switch comprises a touch area, an annular light area arranged outside the touch area and a distance sensor area arranged between the touch area and the annular light area; the touch switch is controlled by a control circuit. When the distance sensor area detects that hands shake in the distance, the annular light area can be lightened, a user can easily find the touch area, and the use is more convenient.

Description

Touch switch convenient to find

Technical Field

The utility model relates to a garbage bin touch switch's technical field, in particular to touch switch who conveniently seeks.

Background

At present, most touch sensing modules in the market do not have good touch sensing feedback, and the touch sensing modules can feed back the touch sensing modules only after being contacted by a human body. Sensors of this type typically have a single touch sensing function and cannot provide some sense-related feedback either early or late based on other information. Therefore, it is difficult to distinguish the touch position in dark light or when the appearance surface has no uneven appearance, which causes inconvenience in use.

The utility model discloses a chinese utility model patent that publication number is N20303327 discloses an infrared induction garbage bin with touch button, including upper and lower staving, and set up the bung on last staving to and be used for driving motor and the mechanical drive device that the bung opened and close, its characterized in that: and the upper barrel body is provided with a touch switch for controlling the action of the motor and a drive control circuit thereof. The touch switch of this patent need touch the switch and just can open after, when can't see touch switch in dark light or light is too strong where, uses extremely inconveniently.

Disclosure of Invention

An object of the utility model is to overcome above-mentioned prior art not enough, provide a touch switch who conveniently seeks, increased the distance sensor district and controlled annular light zone, it aims at solving and needs eyes to see among the prior art and carries out the touch control garbage bin after the touch switch and lead to not seeing the technical problem that touch switch used the difficulty.

In order to achieve the above object, the utility model provides a touch switch which is convenient to find, comprising a touch switch; the touch switch comprises a touch area, an annular light area arranged outside the touch area and a distance sensor area arranged between the touch area and the annular light area; the touch switch is controlled by a control circuit. When the distance sensor area detects that hands shake in the distance, the annular light area can be lightened, a user can easily find the touch area, and the use is more convenient.

Preferably, the control circuit comprises a main control circuit, a distance sensing circuit, a touch sensing circuit and a test circuit.

Preferably, the main control circuit comprises a micro control unit, a first pin of the micro control unit is connected with an annular lamp, and the annular lamp is grounded after being connected with a first resistor in series; a second pin of the micro control unit is connected with a first signal; a third pin of the micro control unit is connected with a second signal; and a fourth pin of the micro control unit is connected with a third signal.

Preferably, the distance sensing circuit comprises an infrared receiving terminal, a first port of the infrared receiving terminal is connected with a first signal, a third port of the infrared receiving terminal is connected with a second resistor in series, and the second resistor is connected with a first capacitor in series and then is connected with a second port; the first capacitor is connected with a second capacitor in parallel and then is grounded; the distance sensing circuit further comprises a first triode, the base level of the first triode is connected with a second signal after being connected with a third resistor in series, the collector electrode of the first triode is connected with a fourth resistor in series and then is connected with a light emitting diode, and the emitter of the first triode is grounded.

Preferably, the touch sensing circuit comprises a touch chip; the first antenna of the touch chip is connected with a fourth signal after being connected with a fifth resistor in series, the second antenna of the touch chip is grounded, the third antenna of the touch chip is connected with a fifth signal, the third antenna of the touch chip is connected with a third capacitor in series and then grounded, and the third antenna of the touch chip is connected with an electrostatic diode and then grounded.

Preferably, the test circuit comprises a first test point, a second test point, a third test point, a fourth test point and a fifth test point; the first test point is grounded, the second test point is connected with a second signal, the third test point is connected with a first signal, the fourth test point is connected with a fourth signal, and the fifth test point is connected with a third signal.

Compared with the prior art, the utility model provides a pair of touch switch who conveniently seeks's beneficial effect does: when the distance sensor area detects that hands shake in the distance, the annular light area can be lightened, a user can easily find the touch area, and the use is more convenient. The problem that the touch cannot be realized under the condition that the touch position is difficult to distinguish when the light is dark or the appearance surface has no concave-convex appearance is solved.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of a touch switch convenient for searching according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a main control circuit of a touch switch convenient for searching according to an embodiment of the present invention.

Fig. 3 the embodiment of the present invention provides a distance sensing circuit structure diagram of a touch switch convenient for searching.

Fig. 4 is a schematic diagram of a touch sensing circuit structure of a touch switch convenient for searching.

Fig. 5 the embodiment of the present invention provides a test circuit schematic diagram of a touch switch convenient for searching.

In the figure: 8. a touch switch; 81. a touch area; 82. an annular light area; 83. a distance sensor zone; 9. a control circuit; 91. a master control circuit; 92. a distance sensing circuit; 93. a touch sensing circuit; 94. a test circuit; u2, a micro control unit; PC4, first pin; d2, ring light; r9, a first resistor; PB6, second pin; ir _ Rcv, first signal; PB5, third pin; ir _ Send, second signal; PB3, fourth pin; ir _ OUT, third signal; p1, infrared receiving terminal; 1. a first port; 3. a third port; r1, a second resistor; c1, a first capacitance; 2. a second port; c2, a second capacitor; q1, the first triode; r2, third resistor; r4, fourth resistor; d1, light emitting diode; u1, touch chip; q, a first antenna; r5, fifth resistor; touchOUT, fourth signal; VSS, second antenna; I. a third antenna; j6, fifth signal; c3, a third capacitance; d3, electrostatic diode; TP2, a first test point; TP3 and a second test point; TP4 and a third test point; TP5 and a fourth test point; TP6, fifth test point.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail through the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, an embodiment of the present invention provides a touch switch convenient for searching, including a touch switch 8. The touch switch 8 includes a touch region 81, an annular light region 82 installed outside the touch region 81, and a distance sensor region 83 installed between the touch region 81 and the annular light region 82. The touch switch 8 is controlled by a control circuit 9. The distance sensor zone 83 receives the signal to control the ring-shaped light zone 82 to be lightened. The user can find the position of the touch area 81 and perform an operation more quickly.

Further, the control circuit 9 includes a main control circuit 91, a distance sensing circuit 92, a touch sensing circuit 93, and a test circuit 94.

Specifically, the main control circuit 91 includes a micro control unit U2, a first pin PC4 of the micro control unit U2 is connected to a ring lamp D2, and the ring lamp D2 is connected in series with a first resistor R9 and then grounded; the second pin PB6 of the micro-control unit U2 is connected to the first signal ir _ Rcv. A third pin PB5 of the micro-control unit U2 is connected with a second signal ir _ Send; the fourth pin PB3 of the micro-control unit U2 is connected to the third signal ir _ OUT.

Specifically, the distance sensing circuit 92 includes an ir receiving terminal P1, the first port 1 of the ir receiving terminal P1 is connected to the first signal ir _ Rcv, the third port 3 of the ir receiving terminal P1 is connected in series to a second resistor R1, and the second resistor R1 is connected in series to a first capacitor C1 and then connected to the second port 2. The first capacitor C1 is connected in parallel with a second capacitor C2 and then grounded. The distance sensing circuit 92 further includes a first transistor Q1, a base of the first transistor Q1 is connected to the second signal ir _ Send by serially connecting a third resistor R2, a collector of the first transistor Q1 is connected to a fourth resistor R4 and is connected to a light emitting diode D1, and an emitter of the first transistor Q1 is grounded.

Specifically, the touch sensing circuit 93 includes a touch chip U1. The first antenna Q of the touch chip U1 is connected with a fourth signal touch OUT after being connected with a fifth resistor R5 in series, the second antenna VSS of the touch chip U1 is grounded, the third antenna I of the touch chip U1 is connected with a fifth signal J6, the third antenna I is connected with a third capacitor C3 in series and then grounded, and the third antenna I is also connected with an electrostatic diode D3 in series and then grounded.

Specifically, test circuit 94 includes a first test point TP2, a second test point TP3, a third test point TP4, a fourth test point TP5, and a fifth test point TP 6. The first test point TP2 is grounded, the second test point TP3 is connected to the second signal ir _ Send, the third test point TP4 is connected to the first signal ir _ Rcv, the fourth test point TP5 is connected to the fourth signal touchOUT, and the fifth test point TP6 is connected to the third signal ir _ OUT.

The specific working process is as follows:

when the hand is shaken above the touch switch 8 and the distance sensor area 83 detects a signal, the annular light area 82 is lit, and the operator can quickly find the touch area 81 and perform an operation. Wherein the touch switch 8 is internally provided with a control circuit 9. The micro control unit U2 is a main control MCU, the specific model is STM81051, the main control MCU enables the light emitting diode D1 to send out a 38HZ modulation signal through a control pin, and the signal is received by the infrared receiving terminal P1 and then sent to a first signal ir _ Rcv pin of the MCU after being demodulated. The MCU judges whether an object in front is detected or not by identifying the integrity or continuity of the signal on the pin, and then controls the switch of the ring-shaped lamp D2.

The touch signal is transmitted to the touch chip U1 through the fifth signal J6, the specific model of the touch chip U1 is TTP223, and the result is output by the first antenna Q after the touch chip U1 completes touch recognition.

After extended use, problems can occur with each pin, and the specific problems can be more easily detected by testing each test point of circuit 94.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims

1. A touch switch easy to find, comprising a touch switch (8); the method is characterized in that: the touch switch (8) comprises a touch area (81), an annular light area (82) installed outside the touch area (81), and a distance sensor area (83) installed between the touch area (81) and the annular light area (82); the touch switch (8) is controlled by a control circuit (9).

2. The easy-to-find touch switch of claim 1, wherein: the control circuit (9) comprises a main control circuit (91), a distance sensing circuit (92), a touch sensing circuit (93) and a test circuit (94).

3. A search for convenience touch switch as recited in claim 2 wherein: the main control circuit (91) comprises a micro control unit (U2), a first pin (PC 4) of the micro control unit (U2) is connected with a ring-shaped lamp (D2), and the ring-shaped lamp (D2) is connected with a first resistor (R9) in series and then is grounded; a second pin (PB 6) of the micro control unit (U2) is connected with a first signal (ir _ Rcv); a third pin (PB 5) of the micro-control unit (U2) is connected with a second signal (ir _ Send); and a fourth pin (PB 3) of the micro-control unit (U2) is connected with a third signal (ir _ OUT).

4. A search for convenience touch switch as recited in claim 3 wherein: the distance sensing circuit (92) comprises an infrared receiving terminal (P1), a first port (1) of the infrared receiving terminal (P1) is connected with the first signal (ir _ Rcv), a third port (3) of the infrared receiving terminal (P1) is connected with a second resistor (R1) in series, and the second resistor (R1) is connected with a first capacitor (C1) in series and then connected with a second port (2); the first capacitor (C1) is connected with a second capacitor (C2) in parallel and then is grounded; the distance sensing circuit (92) further comprises a first triode (Q1), the base stage of the first triode (Q1) is connected with the second signal (ir _ Send) after being connected with a third resistor (R2) in series, the collector electrode of the first triode (Q1) is connected with a light emitting diode (D1) after being connected with a fourth resistor (R4) in series, and the emitting stage of the first triode (Q1) is grounded.

5. A search for convenience touch switch as recited in claim 4 wherein: the touch sensing circuit (93) comprises a touch chip (U1); the touch chip is characterized in that a first antenna (Q) of the touch chip (U1) is connected with a fourth signal (touchOUT) after being connected with a fifth resistor (R5) in series, a second antenna (VSS) of the touch chip (U1) is grounded, a third antenna (I) of the touch chip (U1) is connected with a fifth signal (J6), the third antenna (I) is connected with a third capacitor (C3) in series and then grounded, and the third antenna (I) is also connected with an electrostatic diode (D3) and then grounded.

6. A search for convenience touch switch as recited in claim 5 wherein: the test circuit (94) comprises a first test point (TP 2), a second test point (TP 3), a third test point (TP 4), a fourth test point (TP 5) and a fifth test point (TP 6); the first test point (TP 2) is grounded, the second test point (TP 3) is connected to the second signal (ir _ Send), the third test point (TP 4) is connected to the first signal (ir _ Rcv), the fourth test point (TP 5) is connected to the fourth signal (touchOUT), and the fifth test point (TP 6) is connected to the third signal (ir _ OUT).