Water quality test pen capable of being automatically turned on and turned off

Abstract

The utility model discloses an automatic on-off water quality test pen which comprises a pen body (1) and a pen cap (4), a label (5) is arranged on one side of the pen body (1), an electrode probe I (2) and an electrode probe II (3) are respectively arranged at one end of the pen body (1), a circuit board (6) is arranged in the pen body (1), and a display screen (61), a microcontroller U1 (62) and a component R2 (63) are respectively arranged on the circuit board (6). One end of the circuit board (6) is provided with a first conduction bonding pad (64) and a second conduction bonding pad (65), automatic power-on testing is achieved during product testing, automatic power-off is achieved when no testing is conducted, the use efficiency and the machine use experience of customers are integrally improved, and the service life of the product is also prolonged.

Description

Technical Field

[0001] The utility model relates to an automatic on / off water quality testing pen. Background Art

[0002] Most existing test pens have a switch button inside the circuit board. When placing the electrode part of the product into the test medium for data testing, it is necessary to manually press the switch button before starting to test the product, resulting in slow testing efficiency and directly affecting the customer experience. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a water quality test pen with automatic power on and off, which overcomes the disadvantage of existing water quality test pens that the power button needs to be manually pressed when testing the test medium, thereby improving the user's efficiency.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: the automatic power on / off water quality test pen includes a pen body and a pen cap, a label is provided on one side of the pen body, an electrode probe 1 and an electrode probe 2 are respectively provided at one end of the pen body, a circuit board is provided inside the pen body, a display screen, a microcontroller U1 and a component R2 are respectively provided on the circuit board, and a conductive pad 1 and a conductive pad 2 are respectively provided at one end of the circuit board. After the circuit board is assembled inside the pen body, the electrode probe 1 and the conductive pad 1 maintain contact and conduction, and the electrode probe 2 and the conductive pad 2 maintain contact and conduction, at this time the test pen starts to work and is turned on; when the electrode probe 1 and the electrode probe 2 are not in contact with the test medium, the electrode probe 1 and the electrode probe 2 are in a non-conductive state to achieve shutdown.

[0005] Furthermore, the model of the microcontroller U1 is NY8B062D.

[0006] Furthermore, the parameter combination value of component R2 is 0603 / 1K / 1%.

[0007] After adopting the above technical solution, the technical effect brought about by the utility model is: canceling the physical power-on button on traditional products, and realizing automatic power-on test during product testing and automatic shutdown when there is no test by updating physical components and optimizing internal programs, thereby improving the overall customer's usage efficiency and user experience, and extending the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural diagram of the utility model;

[0009] Figure 2 It is a structural diagram of the prior art;

[0010] Figure 3 This is a circuit working principle diagram of the utility model;

[0011] 1—pen body, 2—electrode probe 1, 3—electrode probe 2, 4—pen cap, 5—label, 6—circuit board, 61—display screen, 62—microcontroller U1, 63—component R2, 64—conduction pad 1, 65—conduction pad 2, 7—switch drum beat, 8—lock drum beat, 9—switch button, 10—lock button. DETAILED DESCRIPTION

[0012] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0013] according to Figure 1-Figure 3As shown, the automatic on / off water quality test pen includes a pen body 1 and a pen cap 4, a label 5 is provided on the pen body 1, an electrode probe 1 2 and an electrode probe 2 3 are provided at one end of the pen body 1, a circuit board 6 is provided inside the pen body 1, a display screen 61, a microcontroller U1 62 and a component R2 63 are provided on the circuit board 6, and a conductive pad 1 64 and a conductive pad 2 65 are provided at one end of the circuit board 6. After the circuit board 6 is assembled inside the pen body 1, when the electrode probe 1 2 and the conductive pad 1 64 maintain contact and conduction, and the electrode probe 2 3 and the conductive pad 2 65 maintain contact and conduction, the test pen starts working and performs data testing; when the electrode probe 1 2 and the electrode probe 2 3 contact the test medium, the signal enters the circuit board 6 through the conductive pad 1 64 and the conductive pad 2 65. The microcontroller U162 is provided with pins PB5 and PA4. Pin PB5 of the microcontroller U162 continuously sends out pulse signals. The pulse signals are transmitted to electrode probe 1-2 after passing through component R263 and conductive pad 1-64. When electrode probe 1-2 and electrode probe 2-3 come into contact with the test medium, the test medium forms a path between electrode probe 1-2 and electrode probe 2-3, that is, there is an equivalent resistance between electrode probe 1-2 and electrode probe 2-3. A signal loop is formed between the microcontroller U162, component R263, electrode probe 1-2 and electrode probe 2-3. Pin PA4 of the microcontroller U162 collects signal value S1 in real time. The signal value is the corresponding value after voltage division of component R263 and the equivalent resistance. When testing different media, the equivalent resistance between electrode probe 1-2 and electrode probe 2-3 will change continuously, and the signal value collected in real time by pin PA4 of the microcontroller U162 will change regularly synchronously, thereby realizing automatic power-on and testing of the product. Similarly, when electrode probe 1 2 and electrode probe 2 3 are not in contact with the test medium, electrode probe 1 2 and electrode probe 2 3 are in a non-conducting state, and a signal loop cannot be formed between the microcontroller U162, component R263, electrode probe 1 2 and electrode probe 2 3. The signal value collected in real time by pin PA4 of the microcontroller U162 is a specific signal value S2. This value feeds back to the microcontroller U162 in a low-power state, thereby shutting down the product. The microcontroller U162 realizes automatic power on and off of the product by processing the values ​​of signal value S1 and signal value S2.

[0014] Preferably, the model of the microcontroller U162 is NY8B062D.

[0015] Preferably, the parameter combination value of component R263 is 0603 / 1K / 1%.

Claims

1. An automatic on / off water quality test pen, comprising a pen body (1) and a pen cap (4), a label (5) being provided on one side of the pen body (1), characterized in that: An electrode probe 1 (2) and an electrode probe 2 (3) are provided at one end of the pen body (1), a circuit board (6) is provided inside the pen body (1), a display screen (61), a microcontroller U1 (62) and a component R2 (63) are provided on the circuit board (6), and a conductive pad 1 (64) and a conductive pad 2 (65) are provided at one end of the circuit board (6). After the circuit board (6) is assembled inside the pen body (1), the electrode probe 1 (2) and the conductive pad 1 (64) are kept in contact and conductive, and the electrode probe 2 and the conductive pad 2 are kept in contact and conductive, and then the test pen starts to work and is turned on; when the electrode probe 1 (2) and the electrode probe 2 (3) are not in contact with the test medium, the electrode probe 1 (2) and the electrode probe 2 (3) are in a non-conductive state and are turned off.

2. The automatic power on / off water quality test pen according to claim 1, characterized in that: The model of the microcontroller U1 (62) is NY8B062D.

3. The automatic power on / off water quality test pen according to claim 1 or 2, characterized in that: The parameter combination value of the component R2 (63) is 0603 / 1K / 1%.

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