Detection device of oil level sensor

Abstract

The utility model discloses a detection device of an oil level sensor, which relates to the field of function verification of the oil level sensor and comprises a simulation pool, a storage pool and a detection pool, the simulation pool is provided with a test groove and a storage groove, the groove wall of the test groove is provided with a plurality of scale marks, and the test groove is used for placing the detected oil level sensor; the oil suction pump is arranged on the simulation pool, and two oil suction pipes of the oil suction pump are respectively arranged in the test tank and the storage tank; the oil level gauge is connected with the output end of the oil level sensor, and the oil level gauge can convert the output resistance of the oil level sensor into a liquid level value; the power supply is connected with the oil suction pump and the oil level gauge; the detection device can meet the detection use of various oil level sensors, the modified oil level gauge is connected with the oil level sensor, and the current oil level is visually displayed, so that the current oil level can be compared with scale marks in a simulation pool, and the performance of the oil level sensor is rapidly judged.

Description

Technical Field

[0001] The utility model belongs to the field of oil level sensor function verification, and more specifically, relates to a detection device for an oil level sensor. Background Art

[0002] The innovation of existing oil level sensor detection devices mostly focuses on the design of the detection device. For example, a simple tooling suitable for different types of oil level sensors is designed. If the performance of multiple sensors needs to be tested at the same time, a computer program is needed to test the oil level sensor. The testing cost is high and the test results are unstable. Often, after the oil level sensor is installed on the vehicle, the oil level error will occur, and the repair work is very troublesome. Utility Model Content

[0003] The purpose of the utility model is to address the deficiencies in the prior art and to provide a detection device for an oil level sensor, which can meet the detection needs of a variety of oil level sensors. The modified oil level gauge is connected to the oil level sensor to intuitively display the current oil level, which can be compared with the scale line in the simulation pool to quickly judge the performance of the oil level sensor.

[0004] In order to achieve the above object, the utility model provides a detection device of an oil level sensor, comprising:

[0005] The simulation tank is provided with a test tank and a storage tank, a plurality of scale lines are provided on the tank wall of the test tank, and the test tank is used to place the oil level sensor to be detected;

[0006] An oil suction pump is arranged on the simulation tank, and two oil suction pipes of the oil suction pump are respectively arranged in the test tank and the storage tank;

[0007] An oil level gauge connected to the output end of the oil level sensor, the oil level gauge being capable of converting the output resistance of the oil level sensor into a liquid level value;

[0008] A power supply is connected to the oil suction pump and the oil level gauge.

[0009] Optionally, the oil suction pump is a forward and reverse rotatable oil suction pump.

[0010] Optionally, the simulation pool is made of acrylic.

[0011] Optionally, the detection medium in the simulation cell is kerosene or diesel.

[0012] Optionally, the liquid level value displayed by the oil level gauge corresponds to the scale line of the test tank.

[0013] Optionally, the power supply is an inverter power supply, and the output voltage of the power supply is 24V.

[0014] Optionally, a self-learning function module is provided in the oil level gauge.

[0015] Optionally, the working environment temperature of the oil level gauge is -40°C to 50°C.

[0016] The utility model provides a detection device for an oil level sensor, which has the beneficial effects of: the detection device is provided with a modified oil level gauge and an acrylic simulation pool, which can realize an intuitive display of the oil level value and visually inspect the smoothness of the oil level sensor; in order to realize liquid level adjustment in a test tank, two tank bodies are provided with a back-to-back structure and a forward and reverse oil suction pump, which maximizes the service life of the detection medium and avoids waste of raw materials.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0019] Figure 1 A schematic structural diagram of a detection device for an oil level sensor according to an embodiment of the utility model is shown.

[0020] Description of reference numerals:

[0021] 1. Simulation tank; 2. Test tank; 3. Storage tank; 4. Scale line; 5. Oil level sensor; 6. Oil suction pump; 7. Oil level gauge; 8. Power supply. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0023] The utility model provides a detection device for an oil level sensor, comprising:

[0024] The simulation tank is provided with a test tank and a storage tank, a plurality of scale lines are provided on the tank wall of the test tank, and the test tank is used to place the oil level sensor to be tested;

[0025] An oil suction pump is arranged on the simulation tank, and two oil suction pipes of the oil suction pump are arranged in the test tank and the storage tank respectively;

[0026] An oil level gauge is connected to the output end of the oil level sensor, and the oil level gauge can convert the output resistance of the oil level sensor into a liquid level value;

[0027] Power supply, connected with oil suction pump and oil level gauge.

[0028] Specifically, the detection device places the oil level sensor to be detected in the test tank, and then connects the output end of the oil level sensor to the oil level gauge. The oil suction pump is set between the two tanks. When the power supply provides power, the detection medium in the test tank and the storage tank is transferred; the scale line position of the medium in the test tank is observed to see if it is consistent with the liquid level value displayed on the oil level gauge, and whether the oil level sensor works normally; in addition, the detection medium is frequently transferred between the test tank and the storage tank through the oil suction pump, and whether the output signal of the oil level sensor changes smoothly with the change of the liquid level. The detection device can detect different types of oil level sensors. As long as the oil level sensor to be detected is connected to the oil level gauge and the oil level sensor is placed in the test tank, the oil level sensor can be detected.

[0029] In one embodiment, the oil suction pump adopts the new second-generation positive and negative electric self-priming oil pump of Zhuomeng 580W / 24V, with a rated flow of 50L / min, a speed of 8000R / min, and a suction range of 5-6 meters. Diesel and kerosene are both extracted through the oil suction pump. The oil suction pump adopts a metal body as a whole, which is durable and rust-proof. The interior adopts high-quality pure copper coils, the motor speed is fast, the operation is stable, and the power consumption is low. It can maintain low noise operation, and it is waterproof, dustproof and leakage-proof, to ensure safe refueling; the product model used by the oil level gauge is JC-B000611, the working voltage is DC 9V-36V±0.1%, the working temperature is -40℃~50℃, the oil level impedance is 5-1000Ω±1%, and the voltage is less than 10V or greater than 31V, and a flashing alarm occurs, and an oil level is less than 10% and a flashing alarm occurs.

[0030] Optionally, the oil suction pump is a forward and reverse rotatable oil suction pump.

[0031] Specifically, when checking whether the displayed value of the oil level sensor is correct, the medium in the storage tank can be gradually pumped into the test tank through an oil suction pump, and the scale line of the liquid level in the test tank is compared with the liquid level percentage displayed on the oil level gauge to confirm whether the oil level sensor is working correctly; when testing the sensitivity of the oil level sensor, when the medium in the test tank is sent into the storage tank through the oil suction pump, observe whether the liquid level percentage displayed on the oil level gauge decreases as the liquid level decreases; when the medium in the storage tank is sent into the test tank through the oil suction pump, observe whether the liquid level percentage displayed on the oil level gauge increases as the liquid level rises, and whether the speed of change of the displayed liquid level is synchronized with the speed of change of the liquid surface in the test tank.

[0032] Optionally, the simulation pool is made of acrylic.

[0033] Specifically, the acrylic simulation pool can directly observe the change of the liquid level, which is convenient for observing whether the oil level sensor is stuck. In addition, the material of the acrylic simulation pool has good adaptability, and its performance will not change under long-term sunlight, wind and rain. It has good anti-aging performance and high light transmittance. The scale line is engraved on the wall of the acrylic simulation pool, so that the scale position of the liquid level can be clearly seen, which is convenient for confirming whether the working status of the oil level sensor is normal.

[0034] Optionally, the detection medium in the simulation cell is kerosene or diesel.

[0035] Specifically, the oil level sensor being tested is used to monitor the liquid level of kerosene or diesel during normal use. Therefore, using these two oils as detection media in the simulation pool can better detect the working state of the oil level sensor.

[0036] Optionally, the liquid level value displayed by the oil level gauge corresponds to the scale line of the test tank.

[0037] Specifically, when the oil level sensor is tested, the scale lines of the oil level gauge and the test tank are set accordingly; when the detection medium is at the highest scale line, the oil level gauge displays 100%, and when the detection medium is at the lowest scale line, the oil level gauge displays 25%. Multiple scale lines are set between the highest scale line and the lowest scale line, and each scale line corresponds to a different oil level gauge position. In this way, after the oil level gauge is connected to the oil level sensor, the oil level gauge can truly detect whether the oil level sensor is working normally.

[0038] Optionally, the power supply is an inverter power supply, and the output voltage of the power supply is 24V.

[0039] Optionally, a self-learning function module is provided in the oil level gauge.

[0040] Specifically, the oil level gauge has a self-learning capability and can flexibly set the lowest and highest positions according to different oil level sensors, so that different oil level sensors can be detected.

[0041] Optionally, the working environment temperature of the oil level gauge is -40°C to 50°C.

[0042] Specifically, since the operating temperature range of the oil level sensor is large, the detection device needs to be placed in different temperature ranges for detection. Therefore, the oil level gauge also needs to be able to work normally in the temperature range of -40℃ to 50℃ to ensure that the transmission signal of the oil level sensor can be displayed normally on the oil level gauge.

[0043] Example

[0044] like Figure 1 As shown, the utility model provides a detection device for an oil level sensor, comprising:

[0045] The simulation tank 1 is provided with a test tank 2 and a storage tank 3. A plurality of scale lines 4 are provided on the tank wall of the test tank 2. The test tank 2 is used to place an oil level sensor 5 to be tested.

[0046] An oil suction pump 6 is arranged on the simulation tank 1, and two oil suction pipes of the oil suction pump 6 are respectively arranged in the test tank 2 and the storage tank 3;

[0047] The oil level gauge 7 is connected to the output end of the oil level sensor 5, and the oil level gauge 7 can convert the output resistance of the oil level sensor 5 into a liquid level value;

[0048] The power supply 8 is connected with the oil suction pump 6 and the oil level gauge 7.

[0049] In this embodiment, the oil suction pump 6 is a forward and reverse rotatable oil suction pump.

[0050] In this embodiment, the simulation pool 1 is made of acrylic.

[0051] In this embodiment, the detection medium in the simulation pool 1 is kerosene or diesel.

[0052] In this embodiment, the liquid level value displayed by the oil level gauge 7 corresponds to the scale line of the test tank 2 .

[0053] In this embodiment, the power supply 8 is an inverter power supply, and the output voltage of the power supply 8 is 24V.

[0054] In this embodiment, a self-learning function module is provided in the oil level gauge.

[0055] In this embodiment, the working environment temperature of the oil level gauge 7 is -40°C to 50°C.

[0056] In summary, the test method of the detection device is as follows: install the tested oil level sensor 5 in the test tank 2, and connect the signal and ground wires at the same time; connect the 220V to 24V inverter power external plug to the oil suction pump 6 and the oil level gauge 7, and observe the voltage value of the oil level gauge 7; press the "forward" or "reverse" switch of the oil suction pump 6, and realize the change of the liquid level by pumping diesel back and forth in the two tanks, and observe the position of the liquid level displayed on the oil level gauge 7 and the scale line 4 where the liquid level is located. The difference is controlled within ±2% to be qualified, and observe whether the sensor is stuck. Repeat the test for three sets of data, and if all pass, it is determined that the performance of the tested sensor is qualified; finally, turn off the switch of the power supply 8.

[0057] The power supply 8 in the detection device adopts a reversible power supply with a capacity of 1000VA, which can provide 24V power supply for the oil suction pump 6 and the modified voltage oil level meter 7 at the same time. It is easy to operate. After connecting to a 220V external power supply and pressing the "charge" switch, a DC 24V power output can be achieved; the modified oil level meter 7 is a liquid crystal oil volume voltage combination meter, which is a new generation of products that replace traditional mechanical and intuitive types. It uses advanced single-chip microcomputer technology to directly display various safety parameters of oil volume and voltage on a liquid crystal display screen, and has the advantages of intuitive display, high accuracy, low power consumption, good stability, and shock resistance. The oil level gauge 7 has the characteristics of strong dynamic ability, wide application range, easy installation, long service life and complete protection functions. The working voltage of the oil level gauge 7 is DC9-36V, the working environment temperature is -40-50℃, the working environment temperature is 45%-75%RH, and the voltage test range is 10-39V; the measuring resistance range is 5-1000Ω, and a flashing alarm will sound when the resistance is lower than 10%; the oil suction pump 6 has a rated power of 580W, a flow rate of 50L / min, a suction range of 5-6 meters, and can pump kerosene / diesel as the medium. The forward and reverse function design can realize the pumping of the medium in the two pools of the simulation pool 1, thereby adjusting the liquid level.

[0058] The above description of various embodiments of the utility model is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A detection device for an oil level sensor, characterized in that: include: The simulation tank is provided with a test tank and a storage tank, a plurality of scale lines are provided on the tank wall of the test tank, and the test tank is used to place the oil level sensor to be detected; An oil suction pump is arranged on the simulation tank, and two oil suction pipes of the oil suction pump are respectively arranged in the test tank and the storage tank; An oil level gauge connected to the output end of the oil level sensor, the oil level gauge being capable of converting the output resistance of the oil level sensor into a liquid level value; A power supply is connected to the oil suction pump and the oil level gauge.

2. The detection device of the oil level sensor according to claim 1, characterized in that: The oil suction pump is a forward and reverse oil suction pump.

3. The detection device of the oil level sensor according to claim 1, characterized in that: The simulation pool is made of acrylic.

4. The detection device of the oil level sensor according to claim 1, characterized in that: The detection medium in the simulation cell is kerosene or diesel.

5. The detection device of the oil level sensor according to claim 1, characterized in that: The liquid level value displayed by the oil level gauge corresponds to the scale line of the test tank.

6. The detection device of the oil level sensor according to claim 1, characterized in that: The power supply is an inverter power supply, and the output voltage of the power supply is 24V.

7. The detection device of the oil level sensor according to claim 1, characterized in that: The oil level gauge is provided with a self-learning function module.

8. The detection device of the oil level sensor according to claim 1, characterized in that: The working environment temperature of the oil level gauge is -40°C to 50°C.

Images