Electronic component for digital signal output

Abstract

The utility model discloses an electronic component for digital signal output. The electronic component comprises a PCB (Printed Circuit Board), a connecting port, an analog signal optical switch, insulation protection glue and a hysteresis comparator, the connecting port is arranged on one surface of the PCB and is electrically connected with the PCB, and the analog signal optical switch is arranged on the other surface of the PCB and is electrically connected with the PCB; the hysteresis comparator is installed on one face of the PCB and connected with the analog signal optical switch to form a digital signal output circuit, and the analog signal optical switch and exposed elements on the PCB are wrapped with the insulation protection glue. The utility model relates to the technical field of electronic components, and can solve the problems in the prior art that the quality of analog signals output by electronic components is poor, installation and test are inconvenient, and the components are easy to damage and leak electricity due to exposure.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic components, in particular to an electronic component for digital signal output. Background Art

[0002] In the electronic components of the prior art such as limit switches, their output signals are all analog signals, which have technical problems such as poor signal quality and inconvenient installation and testing. In addition, the components of the electronic components of the prior art are exposed to the outside, which is prone to leakage, electric shock, collision damage and other problems after long-term use, affecting the safety and service life of the electronic components. Therefore, it is necessary to provide an electronic component with digital signal output, which can solve the problems of poor quality of analog signal output, inconvenient installation and testing, and easy damage and leakage of components exposed to the outside in the prior art. Summary of the invention

[0003] The utility model aims to provide an electronic component with digital signal output, which can solve the problems of poor quality of analog signal output by electronic components in the prior art, inconvenient installation and testing, and easy damage and leakage of components due to exposure.

[0004] The utility model is achieved in this way:

[0005] An electronic component for digital signal output comprises a PCB board, a connection port, an analog signal optical switch, an insulating protective adhesive and a hysteresis comparator; the connection port is mounted on one surface of the PCB board and electrically connected to the PCB board, the analog signal optical switch is mounted on the other surface of the PCB board and electrically connected to the PCB board; the hysteresis comparator is mounted on one surface of the PCB board and connected to the analog signal optical switch to form a digital signal output circuit, and the insulating protective adhesive is wrapped around the analog signal optical switch and the exposed components on the PCB board.

[0006] The analog signal optical switch comprises a transmitting end and a receiving end, wherein a light beam transmitter is arranged in the transmitting end, and a light beam receiver is arranged in the receiving end, the light beam transmitter and the light beam receiver are arranged opposite to each other, and a gap is left between the light beam transmitter and the light beam receiver; the light beam transmitter, the light beam receiver and the analog signal optical switch are connected to form a digital signal output circuit.

[0007] The light beam transmitter is a light emitting diode, and the light beam receiver is a phototransistor. The positive electrode of the light emitting diode is connected in series with the first resistor R1, and the collector of the phototransistor is connected in series with the second resistor R2 and then connected in parallel with the series-connected light emitting diode and the first resistor R1; the first end of the hysteresis comparator is connected to the connection node between the phototransistor and the second resistor R2, and the second end of the hysteresis comparator is connected to the negative electrode of the light emitting diode, the emitter of the phototransistor and the ground terminal GND; the third end of the hysteresis comparator is connected to one end of the second resistor R2 away from the phototransistor, one end of the first resistor R1 away from the light emitting diode and the power supply terminal VCC, and the fourth end of the hysteresis comparator serves as the output terminal VOUT.

[0008] The first resistor R1 and the second resistor R2 are mounted on one surface of the PCB board and are wrapped and covered by insulating protective glue.

[0009] A capacitor C1 is connected in parallel between the third terminal and the fourth terminal of the hysteresis comparator.

[0010] The capacitor C1 is mounted on one surface of the PCB board and is wrapped and covered by an insulating protective adhesive.

[0011] A first groove is formed on the side of the emitter facing the receiving end, and the light-emitting diode is embedded in the first groove. A second groove is formed on the side of the receiving end facing the transmitting end, and the phototransistor is embedded in the second groove, so that the light-emitting diode and the phototransistor are arranged oppositely.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model is provided with a digital signal output circuit, which converts the analog signal output by the phototransistor into a digital signal through a hysteresis comparator, which is beneficial to improving the signal output quality of electronic components.

[0014] 2. The utility model is provided with a connection port, which can be connected to a connection line for installation and testing, thereby facilitating installation and testing of electronic components and convenient operation.

[0015] 3. The utility model is provided with insulating protective glue, which can cover and wrap the hysteresis comparator, the first resistor, the second resistor and the capacitor to prevent the exposed components from leakage, electric shock and damage, which is beneficial to prolonging the service life of electronic components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the electronic components of the utility model for digital signal output;

[0017] Figure 2 It is an inverted stereogram of the electronic components of the utility model for digital signal output;

[0018] Figure 3 It is an inverted stereogram of the electronic components of the utility model for digital signal output (the insulating protective glue is not shown);

[0019] Figure 4 It is a circuit diagram of a digital signal output circuit in an electronic component for digital signal output of the utility model;

[0020] Figure 5 It is a diagram of analog signals output by electronic components of the utility model that output digital signals;

[0021] Figure 6 It is a digital signal diagram output by the electronic component of the digital signal output of the utility model.

[0022] In the figure, 1 is a PCB board, 2 is a connection port, 3 is an analog signal optical switch, 301 is a transmitting end, 302 is a receiving end, 303 is a light emitting diode, 304 is a phototransistor, 305 is a first groove, 306 is a second groove, 4 is an insulating protective glue, and 5 is a hysteresis comparator. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Please see attached Figure 1 To Attachment Figure 3 , an electronic component for digital signal output, comprising a PCB board 1, a connection port 2, an analog signal optical switch 3, an insulating protective glue 4 and a hysteresis comparator 5; the connection port 2 is mounted on one surface of the PCB board 1 and electrically connected to the PCB board 1, the analog signal optical switch 3 is mounted on the other surface of the PCB board 1 and electrically connected to the PCB board 1; the hysteresis comparator 5 is mounted on one surface of the PCB board 1 and connected to the analog signal optical switch 3 to form a digital signal output circuit, and the insulating protective glue 4 is wrapped around the analog signal optical switch 3 and other exposed components on the PCB board 1.

[0025] The analog signal of the phototransistor 304 is converted into a digital signal output by the hysteresis comparator 5, which is beneficial to improving the output signal quality of the electronic components. The setting of the connection port 2 facilitates the connection and installation of the test connection line, thereby facilitating the installation and testing of the electronic components. The insulating protective glue 4 is used to wrap the exposed components such as the hysteresis comparator 5. The insulating protective glue 4 can be made of materials with insulating and protective properties such as black glue, which is convenient for forming a better wrapping of the components, preventing leakage and electric shock, improving the safety of the use of electronic components, and preventing the components from being damaged due to the exposed setting, thereby extending the service life of the electronic components.

[0026] Please see attached Figure 1 To Attachment Figure 3The analog signal optical switch 3 includes a transmitting end 301 and a receiving end 302. The transmitting end 301 is provided with a light beam transmitter, and the receiving end 302 is provided with a light beam receiver. The light beam transmitter and the light beam receiver are arranged opposite to each other, and a gap is left between the light beam transmitter and the light beam receiver. The light beam transmitter, the light beam receiver and the analog signal optical switch 3 are connected to form a digital signal output circuit.

[0027] The light beam transmitter in the transmitting end 301 transmits a light beam to the light beam receiver in the receiving end 302. When the gap between the light beam transmitter and the light beam receiver is not blocked, the light beam receiver can normally receive the light beam transmitted by the light beam transmitter; when the gap between the light beam transmitter and the light beam receiver is blocked, the light beam receiver cannot normally receive the light beam transmitted by the light beam transmitter. The light signal received by the light beam receiver is used to realize the switch function, which can be used in devices such as limit switches.

[0028] Please see attached Figure 4 The light beam transmitter is a light emitting diode 303, and the light beam receiver is a phototransistor 304. The positive electrode of the light emitting diode 303 is connected in series with the first resistor R1, and the collector of the phototransistor 304 is connected in series with the second resistor R2 and then connected in parallel with the series-connected light emitting diode 303 and the first resistor R1; the first end of the hysteresis comparator 5 is connected to the connection node between the phototransistor 304 and the second resistor R2, and the second end of the hysteresis comparator 5 is connected to the negative electrode of the light emitting diode 303, the emitter of the phototransistor 304 and the ground terminal GND; the third end of the hysteresis comparator 5 is connected to one end of the second resistor R2 away from the phototransistor 304, one end of the first resistor R1 away from the light emitting diode 303 and the power supply terminal VCC, and the fourth end of the hysteresis comparator 5 serves as the output terminal VOUT.

[0029] When VCC=5V, the light emitting diode 303 emits light. When the gap is not blocked, the phototransistor 304 receives the light signal emitted by the light emitting diode 303, the phototransistor 304 is turned on, and a low voltage is output, and the hysteresis comparator 5 outputs a high level signal through the output terminal VOUT. When the gap is blocked, the phototransistor 304 cannot receive the light signal emitted by the light emitting diode 303, the phototransistor 304 is not turned on, and a high voltage is output, and the hysteresis comparator 5 outputs a low level signal through the output terminal VOUT, thereby realizing the output of the digital signal.

[0030] The first resistor R1 and the second resistor R2 function as current limiting resistors to ensure the operational safety of the digital signal output circuit. The resistance values ​​of the first resistor R1 and the second resistor R2 can be adaptively adjusted according to actual current limiting requirements.

[0031] Please see attached Figure 2 and attached Figure 3The first resistor R1 and the second resistor R2 are mounted on one surface of the PCB board 1 and are wrapped and covered by an insulating protective adhesive 4 .

[0032] The first resistor R1 and the second resistor R2 are exposed on the PCB board 1 and are prone to leakage or damage. After being wrapped and covered with the insulating protective glue 4, the service life of the first resistor R1 and the second resistor R2 can be extended, and the operating safety and service life of the digital signal output circuit are also guaranteed.

[0033] Please see attached Figure 4 , a capacitor C1 is connected in parallel between the third terminal and the fourth terminal of the hysteresis comparator 5.

[0034] Capacitor C1 plays the role of rectification and filtering at both ends of the power supply. The capacitance value of capacitor C1 can be adaptively adjusted according to actual usage requirements, which can improve the output quality of digital signals.

[0035] Please see attached Figure 2 and attached Figure 3 The capacitor C1 is mounted on one surface of the PCB board 1 and is wrapped and covered by an insulating protective adhesive 4.

[0036] The capacitor C1 is exposed on the PCB board 1 and is prone to leakage or damage. After being wrapped and covered with the insulating protective glue 4, the service life of the capacitor C1 can be extended, and the operating safety and service life of the digital signal output circuit are also guaranteed.

[0037] Please see attached Figure 1 A first groove 305 is formed on the surface of the emitter 301 facing the receiving end 302, and the light-emitting diode 303 is embedded in the first groove 305. A second groove 306 is formed on the surface of the receiving end 302 facing the transmitting end 301, and the phototransistor 304 is embedded in the second groove 306, so that the light-emitting diode 303 and the phototransistor 304 are arranged opposite to each other.

[0038] The arrangement of the first groove 305 and the second groove 306 facilitates the embedding of the light emitting diode 303 and the phototransistor 304, thereby ensuring that the light beam of the light emitting diode 303 is emitted to the phototransistor 304. The emission of the light beam is concentrated and not easy to scatter, and the complete reception of all optical signals is ensured, which can improve the stability and sensitivity of the digital signal output.

[0039] Please see attached Figure 1 To Attachment Figure 6 , the working principle of the utility model is:

[0040] When VCC=5V, the light-emitting diode 303 emits light, the phototransistor 304 receives the light signal emitted by the light-emitting diode 303, the phototransistor 304 is turned on, and outputs a low voltage; according to the characteristics of the hysteresis comparator 5, the output terminal VOUT outputs a high-level signal. When there is an obstruction in the gap in the middle of the analog signal optical switch, the phototransistor 304 cannot receive the light signal emitted by the light-emitting diode 303, the phototransistor 304 is not turned on, and the phototransistor 304 outputs a high voltage; according to the characteristics of the hysteresis comparator 5, the output terminal VOUT outputs a low level, and the phototransistor 304 outputs an analog signal.

[0041] The analog signal output by the phototransistor 304 is shown in the attached figure. Figure 5 As shown, the digital signal output by the hysteresis comparator 5 is as shown in the attached Figure 6 As shown, the analog signal of the phototransistor 304 is converted into a digital signal output through the hysteresis comparator 5, thereby improving the output signal quality of the electronic components.

[0042] The connection port 2 can be installed on the PCB board 1 according to the installation test requirements of the electronic components. When the electronic components need to be installed and tested, it is convenient to connect the test line through the connection port 2, and the installation and testing is convenient and flexible.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electronic component with digital signal output, characterized in that: The device comprises a PCB (1), a connection port (2), an analog signal optical switch (3), an insulating protective adhesive (4) and a hysteresis comparator (5); the connection port (2) is mounted on one surface of the PCB (1) and is electrically connected to the PCB (1); the analog signal optical switch (3) is mounted on the other surface of the PCB (1) and is electrically connected to the PCB (1); the hysteresis comparator (5) is mounted on one surface of the PCB (1) and is connected to the analog signal optical switch (3) to form a digital signal output circuit; the insulating protective adhesive (4) is wrapped around the analog signal optical switch (3) and the exposed components on the PCB (1).

2. The electronic component for digital signal output according to claim 1, characterized in that: The analog signal optical switch (3) comprises a transmitting end (301) and a receiving end (302), wherein a light beam transmitter is provided in the transmitting end (301), and a light beam receiver is provided in the receiving end (302), wherein the light beam transmitter and the light beam receiver are arranged opposite to each other, and a gap is left between the light beam transmitter and the light beam receiver; the light beam transmitter, the light beam receiver and the analog signal optical switch (3) are connected to form a digital signal output circuit.

3. The electronic component for digital signal output according to claim 2, characterized in that: The light beam transmitter is a light emitting diode (303), the light beam receiver is a phototransistor (304), the positive electrode of the light emitting diode (303) is connected in series with a first resistor R1, the collector of the phototransistor (304) is connected in series with a second resistor R2 and then connected in parallel with the light emitting diode (303) and the first resistor R1 connected in series; the first end of the hysteresis comparator (5) is connected to the connection node between the phototransistor (304) and the second resistor R2, the second end of the hysteresis comparator (5) is connected to the negative electrode of the light emitting diode (303), the emitter of the phototransistor (304) and a ground terminal GND; the third end of the hysteresis comparator (5) is connected to an end of the second resistor R2 away from the phototransistor (304), an end of the first resistor R1 away from the light emitting diode (303) and a power supply terminal VCC, and the fourth end of the hysteresis comparator (5) serves as an output terminal VOUT.

4. The electronic component for digital signal output according to claim 3, characterized in that: The first resistor R1 and the second resistor R2 are mounted on one surface of the PCB board (1) and are wrapped and covered by an insulating protective adhesive (4).

5. The electronic component for digital signal output according to claim 3, characterized in that: A capacitor C1 is connected in parallel between the third terminal and the fourth terminal of the hysteresis comparator (5).

6. The electronic component for digital signal output according to claim 5, characterized in that: The capacitor C1 is mounted on one surface of the PCB board (1) and is wrapped and covered by an insulating protective adhesive (4).

7. The electronic component for digital signal output according to claim 2, characterized in that: A first groove (305) is formed on the side of the transmitting end (301) facing the receiving end (302), and the light-emitting diode (303) is embedded in the first groove (305). A second groove (306) is formed on the side of the receiving end (302) facing the transmitting end (301), and the phototransistor (304) is embedded in the second groove (306), so that the light-emitting diode (303) and the phototransistor (304) are arranged opposite to each other.

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