Switching value sensor performance testing device

Abstract

The utility model discloses a switching value sensor performance testing device which comprises a box body, a signal lamp binding post, an LED lamp, a signal lamp binding post, a power supply, a circuit board, a diode and a sensor binding post. A power supply and a circuit board are arranged in the box body, sensor binding posts are arranged on the circuit board and are porous binding posts, one binding post is connected with a diode I and a diode II in parallel, the polarity of the diode I and the polarity of the diode II are opposite, a signal lamp binding post I is connected to the diode I in series, and the signal lamp binding post I is connected to the negative electrode of the power supply. A signal lamp binding post II is arranged on the diode II in series and is connected to the positive electrode of the power supply; one of the sensor binding posts is connected to one end, close to the positive electrode of the power supply, of the signal lamp binding post II, and one of the sensor binding posts is connected to the negative electrode of the power supply; the device improves the performance test efficiency of the switching value sensor, and avoids the defect that manual test wastes time and labor.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco electrical equipment, in particular to a switch quantity sensor performance testing device. Background Art

[0002] In the tobacco industry, switch sensors are widely used. The signal output of switch sensors has only two states: NPN type with low-level output and PNP type with high-level output. Common switch sensors include limit switches, proximity switches, micro switches, etc. This type of sensor is usually used to detect the position and state of an object. When the object being measured touches or approaches the switch, the switch sensor will output a digital signal of 0 or 1.

[0003] When a switch sensor needs to be replaced and there is no switch sensor with clear markings and good performance, we need to spend a long time and use more equipment to test its performance to determine whether the equipment can be used normally and whether the corresponding model is PNP or NPN. There is no special testing device in the prior art, and manual testing is time-consuming and labor-intensive. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings of the prior art and provides a switch quantity sensor performance testing device.

[0005] The purpose of the utility model is achieved through the following technical solutions: a switch quantity sensor performance test device, including a box, a signal light terminal I, a PNP type LED lamp, a signal light terminal II, an NPN type LED lamp, a power supply, a circuit board, a diode I, a diode II, and a sensor terminal; a power supply and a circuit board are arranged in the box, a sensor terminal is arranged on the circuit board, and the sensor terminal is arranged as a porous terminal, one of the terminals is arranged with a diode I and a diode II in parallel, the polarity of the diode I is opposite to that of the diode II, a signal light terminal I is arranged in series on the diode I, and the signal light terminal I is connected to the negative pole of the power supply, A signal light terminal II is arranged in series on the diode II, and the signal light terminal II is connected to the positive pole of the power supply; one of the terminals of the sensor terminal is connected to the end of the signal light terminal II close to the positive pole of the power supply, and one of the terminals of the sensor terminal is connected to the negative pole of the power supply; a PNP type LED lamp is connected to the signal light terminal I, and the PNP type LED lamp is fixedly arranged on the box body, an NPN type LED lamp is connected to the signal light terminal II, and the NPN type LED lamp is fixedly arranged on the box body, and the wiring hole of the sensor terminal is connected to the corresponding jack of the sensor plug through a wire, and the sensor plug is fixedly arranged on the box body.

[0006] Optionally, the power supply is a Siemens PS207 24V power supply, and a power input port of the Siemens PS207 24V power supply is provided with a plug through a power cord connection.

[0007] Optionally, the terminal of the sensor terminal connected in parallel with diode I and diode II corresponds to the black jack end of the sensor plug, the terminal of the sensor terminal connected to the end of signal light terminal II corresponds to the brown jack end of the sensor plug, and the terminal of the sensor terminal connected to the negative pole of the power supply corresponds to the yellow jack end of the sensor plug.

[0008] Optionally, the signal light terminal II is arranged at the positive electrode end of the diode II, and the signal light terminal I is arranged at the negative electrode end of the diode I.

[0009] Optionally, a switch is provided at the positive pole or the negative pole of the power supply.

[0010] The utility model has the following advantages: the device can judge whether the performance of the LED lamp is normal according to the on and off status of the LED lamp; it can quickly judge the corresponding model of the PNP type LED lamp and the NPN type LED lamp according to the status display, so as to quickly judge the model and whether the switch quantity sensor is normal, improve the efficiency, and avoid the time-consuming and laborious defects of manual testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. It is obvious that the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 The circuit structure of the utility model Figure 1 .

[0014] Figure 3 The circuit structure of the utility model Figure 2 .

[0015] In the figure, a box (1), a signal light terminal I (2), a PNP type LED lamp (21), a signal light terminal II (3), an NPN type LED lamp (31), a power supply (4), a circuit board (5), a diode I (6), a diode II (7), a sensor terminal (8), a sensor plug (81), and a power cord (9). DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] like Figure 1 and Figure 2 The device for testing the performance of a switch sensor shown in the figure comprises a box 1, a signal light terminal I2, a PNP type LED lamp 21, a signal light terminal II3, an NPN type LED lamp 31, a power supply 4, a circuit board 5, a diode I6, a diode II7, and a sensor terminal 8. The device has a power supply 4 and a circuit board 5 arranged in the box 1, and a sensor terminal 8 arranged on the circuit board 5. The sensor terminal 8 is arranged as a multi-hole terminal, such as Figure 2As shown, it is set as a three-hole terminal, one of which is connected in parallel with a diode I6 and a diode II7, the polarity of diode I6 and diode II7 is opposite, a signal light terminal I2 is connected in series with diode I6, and signal light terminal I2 is connected to the negative pole of power supply 4, a signal light terminal II3 is connected in series with diode II7, and signal light terminal II3 is connected to the positive pole of power supply 4. One of the terminals of sensor terminal 8 is connected to the end of signal light terminal II3 close to the positive pole of power supply 4, and one of the terminals of sensor terminal 8 is connected to the negative pole of power supply 4. A PNP type LED lamp 21 is connected to the signal light terminal I2, and the PNP type LED lamp 21 is fixedly set on the box 1, and an NPN type LED lamp 31 is connected to the signal light terminal II3, and the NPN type LED lamp 31 is fixedly set on the box 1. The wiring hole of sensor terminal 8 is connected to the corresponding jack of sensor plug 81 through a wire, and sensor plug 81 is fixedly set on the box 1. In this device, the PNP LED lamp 31 and the NPN LED lamp 21 are respectively installed and fixed on the box 1 to provide status display for the performance detection of the switch quantity sensor. Under normal circumstances, the two LED lamps on the box 1 are always on. When the performance of the switch quantity sensor needs to be tested, the switch quantity sensor is inserted into the corresponding sensor plug 81 jack. If the polarity of the switch quantity sensor is PNP type, the corresponding PNP LED lamp 31 on the box 1 is always on, and the NPN LED lamp 21 is off; if the polarity of the switch quantity sensor is NPN type, the corresponding NPN LED lamp 21 on the box 1 is always on, and the PNP LED lamp 31 is off. Always on means that the performance of this switch quantity sensor is normal; the PNP LED lamp 31 and the NPN LED lamp 21 are on to provide the corresponding polarity status display.

[0020] In this embodiment, in order to facilitate wiring, the power supply 4 is a Siemens PS207 24V power supply. The power input port of the Siemens PS207 24V power supply is connected to a plug through a power line 9. At the same time, the terminal of the sensor terminal 8 connected in parallel with the diode I6 and the diode II7 corresponds to the black jack end of the sensor plug 81, the terminal of the sensor terminal 8 connected to the end of the signal light terminal II3 corresponds to the brown jack end of the sensor plug 81, and the terminal of the sensor terminal 8 connected to the negative pole of the power supply 4 corresponds to the yellow jack end of the sensor plug 81. Correspondingly, the signal light terminal II3 is set at the positive end of the diode II7, and the signal light terminal I2 is set at the negative end of the diode I6. When the power line is connected to the 220V power supply, the Siemens PS207 24V power supply supplies power to the PNP LED lamp 31 and the NPN LED lamp 21, and both lamps are in the light state. When the connected switch quantity sensor is of PNP type, one terminal of the sensor terminal is connected to the brown signal line and the 24V positive pole; another terminal is connected to the blue signal line and the 0V negative pole; another terminal is connected to the black signal line and the 24V voltage is output. At this time, on the left branch, a forward voltage is added between the two stages of the diode, the diode is turned on, and the PNP type LED lamp 21 is lit; on the right branch, a reverse voltage is added between the two stages of the diode, the diode is cut off, and the NPN type LED lamp 31 is extinguished. When the connected switch quantity sensor is of NPN type, one terminal is connected to the brown signal line and the 24V positive pole; another terminal is connected to the blue signal line and the 0V negative pole; another terminal is connected to the black signal line and the 24V voltage is output. At this time, on the left branch, a reverse voltage is added between the two stages of the diode, the diode is cut off, and the PNP type LED lamp 31 is extinguished; on the right branch, a forward voltage is added between the two stages of the diode, the diode is turned on, and the NPN type LED lamp 21 is lit. The switch quantity sensor can be replaced with a four-core or five-core plug type or a wiring type.

[0021] When a switch sensor needs to be replaced and there is no switch sensor with clear markings and good performance, we only need to insert or connect the switch sensor to be tested to the corresponding interface, and we can quickly determine whether it can be used normally and whether the corresponding model is PNP or NPN through the status display of the LED light.

[0022] The device can determine whether the performance of an LED lamp is normal according to the on and off status of the LED lamp; it can quickly determine the corresponding model of a PNP type LED lamp or an NPN type LED lamp according to the status display, thereby quickly determining the model of the switch quantity sensor and whether it is normal, thereby improving efficiency and avoiding the time-consuming and labor-intensive defects of manual testing.

[0023] In another embodiment, in order to prevent other conductors from being mistakenly inserted into the socket of the sensor plug 81 when the device is in standby mode and causing a short circuit, as shown in FIG. Figure 3 As shown, a switch is arranged at the positive or negative end of the power source, and a connecting line is arranged at the rear end of the switch.

[0024] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A switch sensor performance test device, Features: The invention comprises a box (1), a signal light terminal I (2), a PNP type LED lamp (21), a signal light terminal II (3), an NPN type LED lamp (31), a power supply (4), a circuit board (5), a diode I (6), a diode II (7), and a sensor terminal (8); the power supply (4) and the circuit board (5) are arranged in the box (1); the sensor terminal (8) is arranged on the circuit board (5); the sensor terminal (8) is arranged as a multi-hole terminal; a diode I (6) and a diode II (7) are arranged in parallel on one of the terminals; the polarities of the diode I (6) and the diode II (7) are opposite; a signal light terminal I (2) is arranged in series on the diode I (6); the signal light terminal I (2) is connected to the negative electrode of the power supply (4); a signal light terminal I (2) is arranged in series on the diode II (7); A light terminal II (3), the signal light terminal II (3) is connected to the positive electrode of the power supply (4); one of the terminals of the sensor terminal (8) is connected to the end of the signal light terminal II (3) close to the positive electrode of the power supply (4), and one of the terminals of the sensor terminal (8) is connected to the negative electrode of the power supply (4); a PNP type LED lamp (21) is connected to the signal light terminal I (2), and the PNP type LED lamp (21) is fixedly arranged on the box (1); an NPN type LED lamp (31) is connected to the signal light terminal II (3), and the NPN type LED lamp (31) is fixedly arranged on the box (1); the wiring hole of the sensor terminal (8) is connected to the corresponding socket of the sensor plug (81) through a wire, and the sensor plug (81) is fixedly arranged on the box (1).

2. A switch quantity sensor performance testing device according to claim 1, Features: The power supply (4) is a Siemens PS207 24V power supply, and a power input port of the Siemens PS207 24V power supply is connected to a plug via a power line (9).

3. A switch quantity sensor performance testing device according to claim 1, Features: The terminal of the sensor terminal (8) to which the diode I (6) and the diode II (7) are connected in parallel corresponds to the black jack end of the sensor plug (81), the terminal of the sensor terminal (8) connected to the end of the signal light terminal II (3) corresponds to the brown jack end of the sensor plug (81), and the terminal of the sensor terminal (8) connected to the negative pole of the power supply (4) corresponds to the yellow jack end of the sensor plug (81).

4. A switch quantity sensor performance testing device according to claim 3, Features: The signal light terminal II (3) is arranged at the positive electrode end of the diode II (7), and the signal light terminal I (2) is arranged at the negative electrode end of the diode I (6).

5. A switch quantity sensor performance testing device according to claim 1, Features: A switch is provided at the positive pole or the negative pole of the power source.

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