Brake oil detector

Abstract

The utility model relates to the technical field of brake fluid measurement, in particular to a brake oil detector which comprises a detector body, a control circuit board, a display screen, a light alarm and a sound alarm, the display screen, the light alarm and the sound alarm are respectively arranged on the detector body, and the detector body is further connected with a brake oil conductivity detection rod and a brake oil boiling point detection rod. The control circuit board is arranged in the detector body, a processor is arranged on the control circuit board, the display screen, the brake oil conductivity detection rod and the brake oil boiling point detection rod are electrically connected with the processor, the processor is provided with a conductivity safety threshold value and a boiling point safety threshold value, and the processor is provided with a first alarm output end and a second alarm output end. The first alarm output end is electrically connected with the light alarm, and the second alarm output end is electrically connected with the sound alarm. According to the utility model, operation reliability and detection stability are improved; and problems can be known and found in time.

Description

Technical Field

[0001] The utility model relates to the technical field of brake fluid measurement, in particular to a brake oil detector. Background Art

[0002] The brake fluid tester is a conductivity tester. The conductivity tester evaluates the quality of the brake fluid by testing the water content of the brake fluid. The specific working principle is to test the conductivity of the brake fluid. The test results are displayed by the built-in light-emitting diode (indicator light) of the tester. The standard is that if the water content is less than 0.5%, it means that the brake fluid is normal. If the water content is between 0.5% and 2.5%, the brake fluid can be replaced or not; if the water content is greater than 2.5%, the brake fluid must be replaced. However, the tester has a fixed initial value built in and cannot be calibrated. The test pens of different manufacturers have different built-in initial values; the formulas of brake fluids of different brands are different. If the brake fluid contains more metal additives, a red light will sometimes be displayed during the test, resulting in errors. Summary of the invention

[0003] The utility model provides a brake fluid tester to solve the problems in the prior art. The brake fluid tester can simultaneously perform conductivity test and boiling point test on the brake fluid. The detected boiling point can be displayed on a display screen, and operators can quickly read the corresponding data to determine whether the data meets the standards, thereby improving operation reliability and detection stability. The processor activates a light alarm and a sound alarm respectively through a first alarm output terminal and a second alarm output terminal to give an alarm, so as to prompt the operator, thereby facilitating timely understanding and discovery of problems.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model provides a brake fluid detector, which comprises a detector body, a control circuit board, and a display screen, a light alarm and a sound alarm respectively mounted on the body, the detector body is also connected to a brake fluid conductivity detection rod and a brake fluid boiling point detection rod, the control circuit board is mounted in the detector body, a processor is arranged on the control circuit board, the display screen, the brake fluid conductivity detection rod and the brake fluid boiling point detection rod are respectively electrically connected to the processor, the processor is provided with a conductivity safety threshold and a boiling point safety threshold, the processor is provided with a first alarm output end and a second alarm output end, the first alarm output end is electrically connected to the light alarm, and the second alarm output end is electrically connected to the sound alarm.

[0006] The processor includes a chip U2, and the model of the chip U2 is STC8G1K08-38I-TSSOP20.

[0007] Among them, the light alarm includes resistor R4, resistor R12, resistor R15, resistor R24, transistor Q1 and light-emitting diode D9, the first alarm output end is connected to one end of resistor R4, the other end of resistor R4 is connected to the base of transistor Q1, the emitter of transistor Q1 is connected to one end of resistor R15, the other end of resistor R15 is grounded, the collector of transistor Q1 is connected to one end of resistor R24, the other end of resistor 24 is connected to the cathode of light-emitting diode D9, the anode of light-emitting diode D9 is connected to one end of resistor R12, and the other end of resistor R12 is connected to the power supply.

[0008] Among them, the light alarm also includes a resistor R5, a resistor R16, a resistor R23, a light-emitting diode D4 and a transistor Q2, the first alarm output end is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the base of the transistor Q2, the emitter of the transistor Q2 is connected to one end of the resistor R16, the other end of the resistor R16 is grounded, the collector of the transistor Q2 is connected to one end of the resistor R23, the other end of the resistor R23 is connected to the cathode of the light-emitting diode Q4, the anode of the light-emitting diode Q4 is connected to one end of the resistor R12, and the other end of the resistor R12 is connected to the power supply.

[0009] Among them, the sound alarm includes a buzzer BUZ, a resistor R7, a resistor R13, a resistor R14 and a transistor Q3, the second alarm output end is connected to one end of the resistor R7, the other end of the resistor R7 is connected to the base of the transistor Q3, the emitter of the transistor Q3 is connected to one end of the resistor R14, the other end of the resistor R14 is grounded, the collector of the transistor Q3 is connected to the buzzer BUZ, one end of the resistor R13 is connected to the power supply, and the other end of the resistor R13 is connected to the buzzer BUZ.

[0010] The detector body is also provided with a plurality of buttons, and the buttons are electrically connected to the processor.

[0011] Beneficial effects of the utility model:

[0012] The utility model is cleverly designed, in that a brake fluid conductivity detection stick and a brake fluid boiling point detection stick are assembled on the main body of the detector, so that conductivity detection and boiling point detection can be performed on the brake fluid at the same time. The detected boiling point can be displayed on a display screen, and operators can quickly read corresponding data to determine whether the data meets the standards, thereby improving operation reliability and detection stability. Furthermore, the processor is provided with a conductivity safety threshold and a boiling point safety threshold. When the detected conductivity is not within the range of the conductivity safety threshold or / and the detected boiling point is not within the range of the boiling point safety threshold, the processor respectively starts a light alarm and a sound alarm through the first alarm output terminal and the second alarm output terminal to give an alarm, so as to prompt the operator, thereby facilitating timely understanding and discovery of problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a circuit diagram of the working principle of a brake oil detector.

[0014] exist Figure 1 Reference numerals in the drawings include:

[0015] 1. Brake fluid conductivity test rod; 2. Brake fluid boiling point test rod; 3. Button. DETAILED DESCRIPTION

[0016] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the implementation modes are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0017] Example 1

[0018] A brake fluid tester, such as Figure 1 As shown, it includes a detector body, a control circuit board, and a display screen, a light alarm and a sound alarm respectively installed on the body, the detector body is also connected to a brake oil conductivity detection rod 1 and a brake oil boiling point detection rod 2, the control circuit board is installed in the detector body, and a processor is arranged on the control circuit board, the display screen, the brake oil conductivity detection rod 1 and the brake oil boiling point detection rod 2 are respectively electrically connected to the processor, the processor is provided with a conductivity safety threshold and a boiling point safety threshold, the processor is provided with a first alarm output end and a second alarm output end, the first alarm output end is electrically connected to the light alarm, and the second alarm output end is electrically connected to the sound alarm. Specifically, the utility model is cleverly designed, in that a brake fluid conductivity detection stick 1 and a brake fluid boiling point detection stick 2 are integrated on the main body of the detector, so that conductivity detection and boiling point detection of the brake fluid can be performed simultaneously. The detected boiling point can be displayed on a display screen, and the operator can quickly read the corresponding data to determine whether it meets the standards. Furthermore, the processor is provided with a conductivity safety threshold and a boiling point safety threshold. When the detected conductivity is not within the range of the conductivity safety threshold or / and the detected boiling point is not within the range of the boiling point safety threshold, the processor activates a light alarm and a sound alarm through the first alarm output terminal and the second alarm output terminal respectively to sound an alarm, so as to prompt the operator, so as to facilitate timely understanding and discovery of problems.

[0019] In the embodiment of the present application, the processor includes a chip U2, and the model of the chip U2 is STC8G1K08-38I-TSSOP20.

[0020] In an embodiment of the present application, the light alarm includes a resistor R4, a resistor R12, a resistor R15, a resistor R24, a transistor Q1 and a light-emitting diode D9, the first alarm output end is connected to one end of the resistor R4, the other end of the resistor R4 is connected to the base of the transistor Q1, the emitter of the transistor Q1 is connected to one end of the resistor R15, the other end of the resistor R15 is grounded, the collector of the transistor Q1 is connected to one end of the resistor R24, the other end of the resistor 24 is connected to the cathode of the light-emitting diode D9, the anode of the light-emitting diode D9 is connected to one end of the resistor R12, and the other end of the resistor R12 is connected to a power supply.

[0021] In an embodiment of the present application, the sound alarm includes a buzzer BUZ, a resistor R7, a resistor R13, a resistor R14 and a transistor Q3, the second alarm output end is connected to one end of the resistor R7, the other end of the resistor R7 is connected to the base of the transistor Q3, the emitter of the transistor Q3 is connected to one end of the resistor R14, the other end of the resistor R14 is grounded, the collector of the transistor Q3 is connected to the buzzer BUZ, one end of the resistor R13 is connected to the power supply, and the other end of the resistor R13 is connected to the buzzer BUZ.

[0022] In the embodiment of the present application, the detector body is further provided with a plurality of buttons 3, and the buttons 3 are electrically connected to the processor, so as to facilitate the operation of the operator.

[0023] Example 2

[0024] In the embodiment of the present application, the light alarm further includes a resistor R5, a resistor R16, a resistor R23, a light emitting diode D4 and a transistor Q2, the first alarm output end is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the base of the transistor Q2, the emitter of the transistor Q2 is connected to one end of the resistor R16, the other end of the resistor R16 is grounded, the collector of the transistor Q2 is connected to one end of the resistor R23, the other end of the resistor R23 is connected to the cathode of the light emitting diode Q4, the anode of the light emitting diode Q4 is connected to one end of the resistor R12, and the other end of the resistor R12 is connected to the power supply. Specifically, the light emitting diode D4 and the light emitting diode D9 can be provided at the same time in this embodiment to avoid the situation where a single light emitting diode is damaged and cannot emit light, thereby improving the stability and reliability of the warning.

[0025] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A brake fluid detector, characterized in that: It includes a detector body, a control circuit board, and a display screen, a light alarm and a sound alarm respectively installed on the body. The detector body is also connected to a brake oil conductivity detection rod and a brake oil boiling point detection rod. The control circuit board is installed in the detector body. A processor is arranged on the control circuit board. The display screen, the brake oil conductivity detection rod and the brake oil boiling point detection rod are respectively electrically connected to the processor. The processor is provided with a conductivity safety threshold and a boiling point safety threshold. The processor is provided with a first alarm output terminal and a second alarm output terminal. The first alarm output terminal is electrically connected to the light alarm, and the second alarm output terminal is electrically connected to the sound alarm.

2. A brake fluid detector according to claim 1, characterized in that: The processor includes a chip U2, and the model of the chip U2 is STC8G1K08-38I-TSSOP20.

3. A brake fluid detector according to claim 1, characterized in that: The light alarm includes a resistor R4, a resistor R12, a resistor R15, a resistor R24, a transistor Q1 and a light-emitting diode D9. The first alarm output end is connected to one end of the resistor R4, the other end of the resistor R4 is connected to the base of the transistor Q1, the emitter of the transistor Q1 is connected to one end of the resistor R15, the other end of the resistor R15 is grounded, the collector of the transistor Q1 is connected to one end of the resistor R24, the other end of the resistor R24 ​​is connected to the cathode of the light-emitting diode D9, the anode of the light-emitting diode D9 is connected to one end of the resistor R12, and the other end of the resistor R12 is connected to a power supply.

4. A brake fluid detector according to claim 3, characterized in that: The light alarm also includes a resistor R5, a resistor R16, a resistor R23, a light-emitting diode D4 and a transistor Q2. The first alarm output end is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the base of the transistor Q2, the emitter of the transistor Q2 is connected to one end of the resistor R16, the other end of the resistor R16 is grounded, the collector of the transistor Q2 is connected to one end of the resistor R23, the other end of the resistor R23 is connected to the cathode of the light-emitting diode Q4, the anode of the light-emitting diode Q4 is connected to one end of the resistor R12, and the other end of the resistor R12 is connected to a power supply.

5. A brake fluid detector according to claim 1, characterized in that: The sound alarm includes a buzzer BUZ, a resistor R7, a resistor R13, a resistor R14 and a transistor Q3, the second alarm output end is connected to one end of the resistor R7, the other end of the resistor R7 is connected to the base of the transistor Q3, the emitter of the transistor Q3 is connected to one end of the resistor R14, the other end of the resistor R14 is grounded, the collector of the transistor Q3 is connected to the buzzer BUZ, one end of the resistor R13 is connected to a power supply, and the other end of the resistor R13 is connected to the buzzer BUZ.

6. A brake fluid tester according to claim 1, characterized in that: The detector body is also provided with a plurality of buttons, and the buttons are electrically connected to the processor.

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