Testing device for electromagnetic detection of brake oil can alarm

Abstract

The utility model relates to the technical field of brake systems, in particular to a test device for electromagnetic detection of a brake oil can alarm. A testing device for electromagnetic detection of a brake oil can alarm is characterized in that a computer monitor of a computer is connected with a computer host through a computer signal line, the computer host is connected with the signal input end of a signal receiver through a first signal line, and the signal output end of the signal receiver is connected with a coil testing mechanism through a second signal line; the power input end of the signal receiver is connected with the programmable power supply through a first power line, and the power output end of the signal receiver is connected with the coil testing mechanism through a second power line. Compared with the prior art, the Helmholtz coil mechanism is utilized, the brake oil pot alarm is placed in the Helmholtz coil mechanism to be tested, the magnetic field intensity of the oil pot alarm is automatically tested and calculated, and the magnetic field intensity of the brake oil pot alarm is tested.

Description

TECHNICAL FIELD

[0001] The utility model relates to brake system technical field, specifically a kind of test device for brake oil can alarm electromagnetic detection. BACKGROUND

[0002] With the sustained rise of the number of cars, the safety and reliability of automotive brake system is increasingly important. Brake fluid as the key medium of brake system, the accurate detection of brake fluid level alarm and other parameters of brake oil can is crucial to ensure the normal operation of brake system. Brake oil can brake fluid level is too low to cause brake distance to be extended even brake failure. Our oil can alarm main function is real-time, accurate detection brake oil can level and other parameters, when liquid level is abnormal, timely alarm, provide safety guarantee for driver.

[0003] In order to ensure the accuracy of brake oil can alarm liquid level alarm, brake oil can alarm needs to be detected by alarm magnetic field intensity. SUMMARY

[0004] The utility model discloses to overcome the insufficient of prior art, provide a kind of test device for brake oil can alarm electromagnetic detection, utilize Helmholtz coil mechanism, place brake oil can alarm in Helmholtz coil mechanism and test, realize the automatic test and calculation of oil can alarm magnetic field intensity, realize the test of brake oil can alarm magnetic field intensity.

[0005] To achieve the above object, a kind of test device for brake oil can alarm electromagnetic detection is designed, including computer, programmable power supply, signal receiver, characterized by: the computer display of computer is connected with computer host computer by computer signal line, computer host computer is connected with the signal input end of signal receiver by first signal line, the signal output end of signal receiver is connected with coil test mechanism by second signal line;The power input end of signal receiver is connected with programmable power supply by first power line, and the power output end of signal receiver is connected with coil test mechanism by second power line.

[0006] The coil test mechanism includes upper magnetic ring, lower magnetic ring, height adjusting platform, limiting rod, upper magnetic ring mounting plate, lower magnetic ring mounting plate, connecting column, the lower magnetic ring is equipped with below the upper magnetic ring, and the height adjusting platform is equipped between the upper magnetic ring and the lower magnetic ring;The upper magnetic ring is fixed by upper magnetic ring mounting plate, and the lower magnetic ring is fixed by lower magnetic ring mounting plate, and the periphery of upper magnetic ring mounting plate is connected with the periphery of lower magnetic ring mounting plate respectively using connecting column;Limiting rod is connected on the connecting column of height adjusting platform side.

[0007] The upper magnetic ring mounting plate, lower magnetic ring mounting plate are rectangular panel, and the central portion is equipped with circular through-hole structure.

[0008] The limiting rod is in L-shaped module structure, the vertical part of the limiting rod is connected with the connecting column, and the horizontal part of the limiting rod is located at one side of the upper part of the height adjusting platform.

[0009] The coil testing mechanism is a Helmholtz coil mechanism.

[0010] Compared with the prior art, the utility model discloses a kind of test devices for brake oil pot alarm electromagnetic detection, utilize Helmholtz coil mechanism, and brake oil pot alarm is placed in Helmholtz coil mechanism and is tested, and the automatic test and calculation of oil pot alarm magnetic field intensity are realized, and the test of brake oil pot alarm magnetic field intensity is realized.

[0011] According to the working principle of test work principle flow chart, the automatic test and calculation of oil pot alarm magnetic field intensity are realized, and the test of brake oil pot alarm magnetic field intensity is realized. BRIEF DESCRIPTION OF DRAWINGS

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

[0013] Figure 2 It is the structural diagram of the coil testing mechanism in the utility model.

[0014] Figure 3 It is the principle diagram of Helmholtz coil.

[0015] Figure 4 It is the test flow chart of the utility model.

[0016] Figure 5 It is the test connection schematic diagram of brake oil pot alarm.

[0017] Figure 6 It is the circuit connection diagram of brake oil pot alarm.

[0018] Referring to Figure 1 , 1 is computer display, 2 is computer host, 3 is first signal line, 4 is signal receiver, 5 is first power line, 6 is second signal line, 7 is programmable power supply, 8 is second power line, 9 is coil testing mechanism.

[0019] Referring to Figure 2 , 9-1 is upper magnetic ring, 9-2 is lower magnetic ring, 9-3 is height adjusting platform, 9-4 is limiting rod, 9-5 is upper magnetic ring mounting plate, 9-6 is connecting column, 9-7 is lower magnetic ring mounting plate. DETAILED DESCRIPTION

[0020] The utility model will be further described below according to the drawings.

[0021] As shown in Figure 1 , Figure 2 , the computer display 1 of computer is connected with computer host 2 through computer signal line, computer host 2 is connected with the signal input end of signal receiver 4 through first signal line 3, and the signal output end of signal receiver 4 is connected with coil test mechanism 9 through second signal line 6;The power input end of signal receiver 4 is connected with programmable power supply 7 through first power line 5, and the power output end of signal receiver 4 is connected with coil test mechanism 9 through second power line 8.

[0022] Coil test mechanism 9 includes upper magnetic ring, lower magnetic ring, height adjusting platform, limiting rod, upper magnetic ring mounting plate, lower magnetic ring mounting plate, connecting column, the lower side of upper magnetic ring 9-1 is equipped with lower magnetic ring 9-2, and height adjusting platform 9-3 is equipped between upper magnetic ring 9-1 and lower magnetic ring 9-2;The upper magnetic ring 9-1 is fixed through the upper magnetic ring mounting plate 9-5, and the lower magnetic ring 9-2 is fixed through the lower magnetic ring mounting plate 9-7, and the periphery of the upper magnetic ring mounting plate 9-5 and the periphery of the lower magnetic ring mounting plate 9-7 are connected with connecting column 9-6 respectively;The connecting column 9-6 on the side of height adjusting platform 9-3 is connected with limiting rod 9-4.

[0023] The upper magnetic ring mounting plate 9-5 and the lower magnetic ring mounting plate 9-7 are rectangular panels, and the central part of the rectangular panels is provided with a circular through-hole structure.

[0024] The limiting rod 9-4 is an L-shaped module structure, the vertical part of the limiting rod 9-4 is connected with the connecting column 9-6, and the horizontal part of the limiting rod 9-4 is located on one side of the upper part of the height adjusting platform 9-3.

[0025] The coil test mechanism 9 is a Helmholtz coil mechanism.

[0026] As shown in Figure 3 , according to the principle of Helmholtz coil, when two same coils are parallel and coaxial, and the coil spacing a is equal to the coil radius R, the combined magnetic field of the two coils is uniform in a large range near the axis, and the magnetic field intensity at each position on the X-axis can be calculated by the formula.

[0027] The calculation formula is as follows: According to the formula, the magnetic field intensity of the origin can be deduced as follows: Wherein, μ0 is magnetic permeability, N is the number of turns, I is input current, and R is coil radius.

[0028] According to the design requirements of the brake oil pot alarm, the parameters of the power supply and the coil are matched to complete the construction of the test system, and the automatic test and calculation are realized.

[0029] AsFigures 4 to 6 The utility model discloses a test process as shown in the figure:

[0030] 1, computer, programmable power supply, signal receiver, coil test mechanism etc. are connected through power cord, signal line;

[0031] 2, the brake oil pot alarm of being measured is connected through the bulb with signal receiver to the coil test mechanism, and the brake oil pot alarm of being measured is placed in the coil test mechanism;

[0032] 3, according to the principle of Helmholtz coil, through the software control programmable power supply on the computer to provide stable current for coil test mechanism, so that the coil of coil test mechanism forms an approximately uniform magnetic field;

[0033] 4, the brake oil pot alarm of being measured is in the uniform magnetic field, through detecting whether the signal of brake oil pot alarm of being measured alarms, and according to the alarm state feedback, control power supply slowly increases or reduces current until the alarm of alarm, and records the alarm current at this time;

[0034] 5, according to the principle of Helmholtz coil formula, the alarm magnetic field intensity of alarm is calculated.

[0035] The whole test process is according to the working principle flow chart and working principle, and the computer software is used to realize the automatic test and calculation of brake oil pot alarm magnetic field intensity.

Claims

1. A test device for electromagnetic detection of brake reservoir alarm, comprising a computer, a programmable power supply, a signal receiver, characterized in that: The computer display (1) is connected with the computer host (2) through the computer signal line, the computer host (2) is connected with the signal input end of the signal receiver (4) through the first signal line (3), and the signal output end of the signal receiver (4) is connected with the coil testing mechanism (9) through the second signal line (6); the power input end of the signal receiver (4) is connected with the programmable power supply (7) through the first power line (5), and the power output end of the signal receiver (4) is connected with the coil testing mechanism (9) through the second power line (8).

2. A test device for electromagnetic detection of brake reservoir alarm according to claim 1, characterized in that: The coil testing mechanism (9) comprises an upper magnetic ring, a lower magnetic ring, a height adjusting platform, a limiting rod, an upper magnetic ring mounting plate, a lower magnetic ring mounting plate and a connecting column, the lower magnetic ring (9-2) is arranged below the upper magnetic ring (9-1), and the height adjusting platform (9-3) is arranged between the upper magnetic ring (9-1) and the lower magnetic ring (9-2); the upper magnetic ring (9-1) is fixed through the upper magnetic ring mounting plate (9-5), the lower magnetic ring (9-2) is fixed through the lower magnetic ring mounting plate (9-7), and the periphery of the upper magnetic ring mounting plate (9-5) and the periphery of the lower magnetic ring mounting plate (9-7) are connected through the connecting column (9-6) respectively; the limiting rod (9-4) is connected to the connecting column (9-6) on one side of the height adjusting platform (9-3).

3. A test device for electromagnetic detection of brake reservoir alarm according to claim 2, characterized in that: The upper magnetic ring mounting plate (9-5) and the lower magnetic ring mounting plate (9-7) are rectangular panels, and the central parts of the upper magnetic ring mounting plate (9-5) and the lower magnetic ring mounting plate (9-7) are provided with circular through hole structures.

4. A test device for electromagnetic detection of brake reservoir alarm according to claim 2, characterized in that: The limiting rod (9-4) is an L-shaped module structure, the vertical part of the limiting rod (9-4) is connected with the connecting column (9-6), and the horizontal part of the limiting rod (9-4) is located on one side of the upper part of the height adjusting platform (9-3).

5. A test device for electromagnetic detection of brake reservoir alarm according to claim 1 or 2, characterized in that: The coil testing mechanism (9) is a Helmholtz coil mechanism.

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