KR0128323Y1 - Apparatus for warning the replacement of an air-cleaner's filter - Google Patents

Abstract

By informing the replacement time of the air cleaner filter installed in the intake machine of the car, it is possible to prevent incomplete combustion and cylinder wear due to the delay of replacement time. 3), an air cleaner (1) consisting of a filter (2) for filtering the air flowing from the intake pipe (3), and an air cleaner tube having the internal pressure of the air cleaner, through which the air filtered by the air cleaner (1) flows. (4) an atmospheric pressure pipe (11) communicating with the intake pipe (3) or exposed to a high pressure state and having an atmospheric pressure; An air cleaner pressure tube (12) communicating with the air cleaner tube (4) and having an air cleaner pressure; A filter replacement timing detecting device (10) positioned between the atmospheric pressure pipe (11) and the air cleaner pressure pipe (12) and determining the replacement time of the air cleaner filter (2) due to the difference between the large pressurization and the air cleaner pressure; A power source 18 for supplying current to the filter replacement timing detecting device 10; And it is an air cleaner filter replacement time notification device comprising a notification device 20 for informing the filter solid time by the filter replacement time detection device (10).

Description

Notification device for air cleaner filter replacement time

1 is a mounting system of the air cleaner filter replacement time notification device according to the present invention.

2 is an explanatory diagram of a notification device for replacing the air cleaner filter according to the present invention.

3 is an operation diagram of the filter replacement time notification device of the present invention.

* Explanation of symbols for main parts of the drawings

1: Air cleaner 2: Filter

10: air cleaner filter replacement time detection device 15: diaphragm

16: fixed plate 18: power

20: notification device

[Industrial use]

The present invention is a device for notifying the replacement time of the air cleaner filter, more specifically, the flow resistance is increased when the air filter is dust, and the air cleaner filter replacement time notification device that informs the driver by using the negative pressure in the intake pipe resulting therefrom It is about.

[Prior art]

The dust that floats on the road where the car runs is mainly composed of silicon oxide, aluminium oxide, iron oxide, and carbon.

If the air containing such dust is inhaled without filtering, an experimental result shows that the engine wear amount is nine times higher than when filtered.

As such, the air cleaner plays an important role in extending the life of the engine by filtering dust and supplying clean air to the engine.

The air cleaner has a paper filter inside the case, and a case cover is attached to a packing to prevent air leakage from above and below the filter.

Air enters the inlet of the air cleaner, runs along the outer circumference of the filter, passes through the filter to remove dust, and the air collects in the center and flows through the air cleaner hose to the air flow meter.

If the air cleaner filter is delayed, the air cleaner filter will be surrounded by dust, which will not be able to provide sufficient filtration, and will not supply enough air to the engine, causing excessive emissions of smoke and abrasion of the cylinder. Early on, there can be economic waste.

By the way, all the devices related to the performance of the car can be developed day by day to determine the accuracy. Until now, the method of determining the replacement time of the air cleaner filter has been determined by the driver in consideration of the mileage, driving conditions, etc. for the vehicle, and also determines whether or not to replace the air cleaner by directly opening the lid of the air cleaner case.

[Problems to Be Solved by the Invention]

The above method is quite cumbersome for the driver, and it is difficult to determine the time for proper filter replacement.

The purpose of the present invention was devised to solve such a problem, and it informs the driver of the appropriate time to replace the air cleaner filter, eliminating the driver's hassle to check the mileage, driving conditions, etc. It is to provide a replacement time notification device that can be printed.

[Devices for solving the problem]

In order to realize this, the present invention, the suction pipe having the same pressure as the atmospheric pressure and air is introduced from the outside; An air cleaner comprising a filter for filtering air introduced from the suction pipe, and a case lamp including the filter; An air cleaner tube for discharging the filtered air of the air cleaner to an air probe meter; An atmospheric pressure pipe having an atmospheric pressure equal to that of the suction pipe; An air cleaner pressure tube communicating with the air cleaner tube to equalize the pressure of the air cleaner; A filter replacement time detecting device positioned between the air atmospheric pressure pipe and the air cleaner pressure pipe to detect a negative pressure of the air cleaner to detect a state of the filter of the air cleaner; A power supply for sending a current to the filter replacement time detection device; Provides an air cleaner filter replacement time notification device comprising a notification device for receiving a signal from the filter replacement detection device to inform the driver of the filter replacement time.

In addition, the filter replacement time detection device and the atmospheric pressure chamber in communication with the atmospheric pressure pipe; An air cleaner pressure chamber in communication with the air cleaner pressure pipe; A diaphragm which is located between the atmospheric pressure chamber and the air cleaner pressure chamber and has a terminal for receiving a different pole current from an external power source, and which is moved by a pressure difference between the atmospheric pressure and the air cleaner pressure; It provides an air cleaner filter replacement time notification device formed in the air cleaner pressure chamber and comprises a fixed plate having a terminal for receiving a current from an external power source.

[Action]

Therefore, if the filter of the air cleaner is filled with flow, the flow resistance is increased, and if negative pressure is generated in the air cleaner, the diaphragm of the filter replacement timing sensor expands and comes into contact with the fixed plate. Let's do it.

EXAMPLE

Hereinafter, with reference to the accompanying drawings, preferred embodiments will be described in more detail.

FIG. 1 is a view schematically showing a mounting state of the present invention, and FIG. 2 is a side cross-sectional view for explaining an air cleaner filter replacement time sensing device, and reference numeral 1 denotes an air cleaner.

In order to make a proper mixing ratio of the smoke, air is sucked from the outside, and the air to be sucked contains a large amount of foreign matter and must be filtered.

The filter 2 embedded in the air cleaner 1 having such a function passes through the air introduced through the intake pipe 3 from the outside and filters the filter 2.

However, this flow resistance is further increased when the filter 2 is contaminated with dust contained in the air.

Therefore, since the amount of intake air decreases, the pressure in the air cleaner 1 and the pressure below the air cleaner tube 4 have a negative pressure lower than atmospheric pressure.

This negative pressure is used to inform the driver when to replace the filter.

The air cleaner filter replacement time detecting device 10 of the present invention is located between the intake pipe 3 and the air cleaner tube 4 and communicates with the suction pipe 3 having atmospheric pressure or is exposed to atmospheric pressure. Air pressure from the air cleaner pressure tube 12 which is provided with atmospheric pressure from the atmospheric pressure tube 11 and which is in communication with the air cleaner tube 4 and has the same pressure as the pressure in the air cleaner, and the difference between the other two pressures. The replacement time of the filter is measured.

The filter replacement time detection device 10 is formed of a cylindrical case 111, and the inside of the air cleaner from the atmospheric chamber 13 and the air cleaner pressure tube 12 having an atmospheric pressure in communication with the atmospheric pressure pipe (11) An air cleaner pressure chamber 14 that receives pressure is formed, and a diaphragm 15 is formed between the atmospheric pressure chamber 13 and the air cleaner pressure chamber 14.

The diaphragm 15 is made of a non-ferrous metal of a thin plate, has a circular corrugation and expands as the corrugation is expanded due to the pressure difference between the chambers 13 and 14.

In addition, the fixing plate 16 mounted in the air cleaner pressure chamber 14 facing the diaphragm 15 is provided with a plurality of holes 100 to provide air cleaner pressure to the space between the diaphragm 15 and the diaphragm 15. do.

The terminals 17a and 17b respectively formed on the diaphragm 15 and the fixed plate 16 are positioned on the same line so as to be in contact with each other when the diaphragm 15 is inflated, which are separate wires from an external power source 18. Receive currents of different polarities at (19a, 19b).

When the filter 2 of the air cleaner is contaminated enough to be replaced, the pressure of the air cleaner 1 is lowered below the prescribed value. Therefore, the diaphragm 15 is expanded due to the expansion of the diaphragm 15 as described above. The terminal 17a of) and the terminal 17b of the fixing plate 16 come into contact with each other, and this is the replacement timing of the filter 2.

The signal detected by the air cleaner filter replacement time detecting device 10 is a notification device such as a lamp 20, which is mounted at a predetermined position of the driver's seat so as to be noticeable to the driver.

The notification device 20 is connected to the different wires 21a and 21b from the terminals 17a and 17b to output a signal. When the terminals 17a and 17b meet at a suitable time of filter replacement, As the different poles received from the power source 18 of the cross (cross) the notification device 20 is turned on.

3 is an operation diagram of the diaphragm 15 of the air cleaner filter replacement time detecting device 10. Air entering the air cleaner 1 through the intake pipe 3 is filtered by the filter 2, and the air cleaner It flows through the tube (4) to the flow meter (5), when the filter (2) is clogged by dirt, etc., the air flows into the air cleaner tube (4) is less, the pressure naturally falls.

Therefore, a negative pressure with atmospheric pressure is generated. At this time, the diaphragm 15, which is in contact with the atmospheric pressure chamber 13, expands toward the air cleaner chamber 14 which is in a low pressure state by a relatively high atmospheric pressure. The distance D from the fixed plate 16 installed in 14 becomes shorter, which means that the larger the pressure difference, the shorter the distance D becomes.

When the filter is properly replaced, the diaphragm 15 is inflated by the distance D from the fixing plate 16 so that the terminals 17 a and 17 b installed on each other are in contact with each other and are shown in a dashed line. .

Accordingly, when the currents of the different poles of the terminals 17a and 17b are crossed, the notification device 20 is turned on so that the driver knows when to replace the air cleaner filter 20.

[effect]

This design, configured as described above, determines the appropriate time to replace the air cleaner filter, reducing the economical waste of the early filter replacement and eliminating smoke and engine cylinder wear caused by too late replacement. This can reduce the driver's hassle in determining.

Claims (2)

Intake pipe 3 having air pressure from outside and having an atmospheric pressure, filter 2 for filtering air flowing from the intake pipe 3, and air filtered through the filter 2 flow and have internal pressure. An air cleaner (1) consisting of a cleaner tube (4), comprising: an atmospheric pressure pipe (11) having an atmospheric pressure; An air cleaner pressure tube (12) in communication with the air cleaner tube (4) and having an air cleaner pressure; A filter replacement time detecting device (10) positioned between the atmospheric pressure pipe (11) and the air cleaner pressure pipe (12) and determining the replacement time of the air cleaner filter (2) due to the difference between the atmospheric pressure and the air cleaner pressure; A power source 18 for supplying current to the filter replacement time detecting device 10; And a notification device 20 for informing the filter solid time by the filter replacement time detection device 10. The method of claim 1, wherein the filter replacement time detection device 10 includes an atmospheric pressure chamber (13) having an atmospheric pressure received from the atmospheric pressure pipe (11); An air cleaner pressure chamber 14 received from the air cleaner pressure pipe 12; A diaphragm (15) located between the atmospheric pressure chamber (13) and the air cleaner pressure chamber (14) and elastically moved by the difference between the atmospheric pressure and the air cleaner pressure; A fixing plate 16 positioned opposite the diaphragm 15; And a terminal (16a, 16b) mounted to the diaphragm (16) and the fixed plate (16).