JPS59143940A - Device for detecting contamination degree of liquid - Google Patents

Abstract

PURPOSE:To detect the contamination degree of liquid simply and quantitatively, by arranging a light emitting body and a light receiving body with an interval being provided between them, providing a control device, which detects the amount of received light when the liquid flows in said interval and detects the contamination of the liquid, and providing a display device, which displays the contamination based on the signal from the control device. CONSTITUTION:A detecting part B is immersed in a liquid to be inspected, e.g., engine oil in an oil pan. A space 12 is filled with the liquid to be inspected. At this time, air in the space 12 flows out through an air extracting hole 15. Therefore, the liquid readily enters the space 12. When a switch is turned ON, a current flows to a light emitting body 13 from a power source 15, and the light emitting body 13 emits light. The light is detected by a light receiving body 14. The transmitting state of the light through the liquid is converted into an electric signal and sent to an electronic circuit 4 for control. The relationship between the contamination degree and the transmittance of the liquid to be inspected is stored in the electronic circuit for control as data. The stored data and the signal from the light receiving body 14 are compared, and the contamination degree is displayed on a display device 3.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stain level detection device for detecting the degree of contamination of a liquid such as, for example, an automobile engine.

For example, when checking the level of oil in a car's engine oil by turning it around 9 times (normally, when checking the oil level with a level cage that detects the level of engine oil, visually check the amount of oil that has accumulated on the level gauge. I was there. I wanted to-C
It is possible to qualitatively know the degree of contamination of the A-il (although it cannot be known quantitatively).

Generally speaking, the amount of dirt on the drive button head is proportional to the mileage of the car, but in some cases, the screw 1 ring may temporarily wear out and cause rapid dirt, and therefore the running button head 1 may become dirty. J: One Ruji was not enough.

Therefore, an object of the present invention is to provide a liquid contamination degree detection device that can easily stereotactically detect the contamination degree of a liquid.

According to the present invention, there is provided a control device that arranges a light emitter and a photoreceptor with a distance d apart from each other, detects the amount of received light h1 when liquid has flowed within the distance, and detects contamination of the liquid; A signal from the control device is used to indicate the presence of dirt on the display.

Therefore, we decided to avoid injecting the liquid whose leakage is to be detected into the space between the emitter and the photoreceptor and measure the amount of light received by the other photoreceptor. You can see the dirt. That is, by knowing the amount of light received from clean liquid in advance and using f3kj, the amount of light received changes according to the degree of abrasion of the dirt, so that the degree of dirt can be quantitatively known.

Hereinafter, a detailed description of the present invention will be given with reference to the drawings.

FIG. 11 shows a liquid contamination level detection device A in which the present invention is implemented, and this device △ is a main body part '1, a detection part B and Jζ
It's something that will happen. A transparent part 2 is formed on the upper part of the main body part 1. This transparent part 2 (for example, made of glass or transparent blastin) has a display 3 housed inside it. 7. +1 L, J: Indicates whether the liquid is good, such as engine oil. 1: j': r, or not.
- A color-divining lamp 31.1, a yellow lamp 3C and a red lamp 3D are installed. However, lamp 331
] ~ 33d) It is also possible to use a Kyoe-C indicator.

The main body part 1 houses a control device, a control electronic circuit 4, and a power supply 5.A blower device 6 is also housed in the main body part 1. -(is made of a known synthetic resin snake B!Z-shaped blowout 41!: is made.

The handle part 10 of the detection part 13 is removed from the main body part 1,
This handle 10 is made hollow of soft synthetic resin, for example, and has a tip-like shape at its lower end. ('
) Detection (]< A1 is taken (=j. One detector 1'1 has a space 12 that is open on the T side, and there is a space 12 such as an LED at a symmetrical position that covers the other side in the diametrical direction. Luminous body 1
It is equipped with 4 photoreceptors 1/l like transistors. Therefore, the light emitting body 13 and the light receiving body 14 are spaced apart from each other by the space 12. In addition, a 1A punch hole 15 is provided in the upper part of the space 12, and the air blower 6 blows the air from the air blower 6. There are four bosses 16 at intervals between the upper parts of the spaces 12 that guide the air flowing through the air.

Next, the operation will be explained mainly with reference to FIG. .

When the liquid to be tested is inserted into the engine oil in the oil pan, the space 12 is filled with the liquid to be tested. Since the air in the space 12 flows out, the liquid (1) easily flows into the space 12. By turning on the switch 17, a current flows from the power source 5 to the photoreceptor 13 and emits light (A13 emits light, and the light is transferred to the photoreceptor 14. is sensed.Shitakatsu-C
The transmission state of light passing through the liquid is converted into an electrical signal and sent to the control circuit 1. This control electronic circuit 4 is tested in advance to determine the degree of contamination of the liquid to be processed. The relationship with the transmittance is stored as data d3, and the stored data is compared with the signal from the photoreceptor 14 to display the degree of contamination on the display 3.

When this detection operation is completed, the blower device 6 is activated to blow air into the -C space 12. 1j Rudo space 12 wall ~ b
The liquid applied to the light emitter 13 and the photoreceptor 1/I is wiped away, and the next detection operation can be prevented from being affected by the previous liquid.

As described above, according to the present invention, a liquid is caused to flow between the light emitter and the light receiver 1, and the control electronic circuit detects the C control skill 1J by the light receiver. '5 The amount of melon is displayed on the display, so you can accurately and quantitatively know the extent of the contamination. Therefore, for example, it becomes easy to diagnose a car, and it is possible to accurately judge the deterioration of the oil.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a liquid contamination level detection device embodying the present invention, Fig. 2 is a plan view thereof, and Fig. 3 is a sectional view of a device embodying the present invention. ε1 is shown in Figure 1. 1...Main body part B...Detection part 3...Display device 4...Control device 13...Light emitter 1/l
...Photoreceptor 12...Space Figure 2 Figure 3

Claims (1)

[Claims] A control device for arranging a light emitter and a photoreceptor with an interval, and detecting contamination of the liquid by detecting the amount of light received when liquid flows into the interval; A liquid contamination level detection device comprising: a display device that displays contamination based on a signal from a silicate device.