KR19980041905U - Oil pan structure for automatic transmission - Google Patents

Abstract

In order to increase the durability of the transmission by extending the life of the oil filter, the oil pan is disposed on the bottom of the transmission is fixedly coupled to form a predetermined chamber and a plurality of magnetic bodies fixed to the bottom;

An oil filter disposed in the chamber of the oil pan;

A valve body connected to the oil filter and for controlling each friction element;

Provided is an oil pan structure for an automatic transmission, which is fixedly disposed on an inner bottom surface of the oil pan and comprises impurity flow suppressing means for suppressing flow of impurities collected in a magnetic body.

Description

Oil pan structure for automatic transmission

1 is a cross-sectional view of an oil pan showing a first embodiment according to the present invention,

2 is a cross-sectional view of an oil pan showing a second embodiment according to the present invention,

3 is a perspective view showing the main part of FIG.

4 is a cross-sectional view of an oil pan showing a third embodiment according to the present invention,

5 is a perspective view showing the main part of FIG.

6 is a cross-sectional view showing a conventional oil pan structure for an automatic transmission.

* Description of the symbols for the main parts of the drawings *

1: oil pan 3: oil filter

5: valve body 9: magnetic material

11: rib 13: mesh member

15: oil dam member 17: oil distribution port

[Industrial use]

The present invention relates to an oil pan structure for an automatic transmission, and more particularly, to an oil pan structure for an automatic transmission that collects impurities contained in oil for controlling the automatic transmission, thereby improving durability of the oil filter and the automatic transmission. It is about.

[Prior art]

Generally, a transmission for an automobile is provided between an engine and a propulsion shaft so as to maintain a proper driving state by appropriately selecting a gear according to a driving state of a vehicle.

The transmission has a function of transmitting the driving force of the engine to the drive wheels. The transmission includes a manual transmission in which the driver directly selects a shift stage according to the driver's will, and automatically shifts according to driving conditions of the vehicle. It is largely an automatic transmission.

The present invention relates to the automatic transmission, and the automatic transmission has an input shaft and an output shaft disposed inside the transmission case, and a plurality of friction elements are disposed on the outer circumference thereof.

The friction element is to be selectively operated by the hydraulic pressure is to change the vehicle.

Therefore, in order to operate the friction element, the automatic transmission is equipped with an oil pan 101 which forms a predetermined chamber at the lower end of the transmission case (not shown) as shown in FIG.

In the oil pan 101, a valve body 103 connected to an oil pump (not shown) mounted on a transmission (not shown) and an oil filter for filtering impurities of oil introduced into the valve body 103. It consists of a structure in which 105 is combined.

In addition, a plurality of magnetic bodies 107 are fixedly coupled to the inner bottom of the oil pan 101.

And the inside of the oil pan 101 is made of a structure filled with oil for controlling the friction element in the transmission.

In the oil pan structure for an automatic transmission, the oil for removing each friction element is introduced into the valve body through the oil filter through an oil pump mounted in the transmission.

The oil introduced into the valve body as described above is pressurized by the oil pump to control each friction element.

And some of the oil is used as a lubricating oil to lubricate each friction part of the transmission.

The oil is returned back to the bottom of the oil pan after being used for control and lubrication of the friction element.

At this time, foreign matters such as fine metal powder contained in the oil adhere to the magnetic material and are filtered first before being filtered by the oil filter.

Therefore, the content of impurities in the oil circulating in the transmission can be reduced.

[Problems to Be Solved by the Invention]

However, in the conventional oil pan structure for the automatic transmission, impurities adhering to the magnetic material inside the cooling fan are introduced to the oil filter side according to the flow of oil to shorten the life of the oil filter, thus reducing the durability of the transmission. There is a problem.

[Means to solve the problem]

The present invention has been made to solve the above problems of the prior art, an object of the present invention is to provide an oil pan structure for an automatic transmission to increase the durability of the transmission by extending the life of the oil filter.

In order to solve the object of the present invention, the oil pan is disposed on the bottom of the transmission is fixedly coupled to form a predetermined chamber and a plurality of magnetic material is fixedly arranged on the bottom;

An oil filter disposed in the chamber of the oil pan;

A valve body connected to the oil filter and for controlling each friction element;

Provided is an oil pan structure for an automatic transmission, which is fixedly disposed on an inner bottom surface of the oil pan and comprises impurity flow suppressing means for suppressing flow of impurities collected in a magnetic body.

[Action]

In the oil pan structure for an automatic transmission according to the present invention, impurities and the like are collected in a magnetic body formed on the bottom of the oil pan, and the collected impurities are less affected by oil flow due to impurity flow suppressing means.

EXAMPLE

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

1 is a cross-sectional view showing a first embodiment according to the present invention, an oil pan 1 mounted on a bottom of a transmission case, an oil filter 3 disposed inside the oil pan 1, and the oil. The valve body 5 is shown in connection with the filter 3.

The oil pan 1 has a predetermined storage space formed therein and is filled with oil 7 for controlling a friction element (not shown).

In addition, the bottom surface of the inner side of the oil pan (1) is made of a structure in which a magnetic body (9) for adsorbing foreign substances contained in the oil is fixedly arranged.

The magnetic body (9) is made of a plurality of in between is made of a structure in which the rib 11 is formed so that the adsorbed foreign matter does not move in accordance with the flow of oil.

The rib 11 is formed to protrude upward from the inner bottom surface of the oil pan (1).

2 is a cross-sectional view showing a second embodiment according to the present invention, in which the oil pan 1, the oil filter 3 and the valve body 5 are the same as shown in FIG. 1 and instead of the ribs 11. The mesh member 13 is arranged on the bottom of the oil pan 1.

The mesh member 13 has a structure that is disposed laterally at a predetermined interval on the inner bottom surface of the oil pan (1).

The mesh member 13 may be used in various materials as steel synthetic resin material or alloy material, and may have a structure in which oil may be distributed between a bottom surface and an upper surface of the mesh member 13.

In addition, the mesh member 13 is more preferably made of a wire mesh form, as shown in FIG.

4 is a cross-sectional view showing a third embodiment according to the present invention, which shows an oil dam 15 instead of the ribs 11 and the mesh member 13 of the first and second embodiments.

The oil dam 15 is configured such that one side is fixed to the bottom of the oil pan 1 and the other end is fixed to the oil filter 3 to form a plurality of oil chambers.

The oil dam 15 is also made of a plurality of structures to form a plurality of oil chamber on the bottom of the oil pan (1).

In addition, as shown in FIG. 5, the oil dam 15 includes a plurality of oil outlets 17 in the oil dam 15 so that oil can flow between oil chambers formed at the bottom of the oil pan 1. ) Is formed.

The oil distribution port 17 of the oil dam 15 is illustrated in the present embodiment by showing a structure arranged in a line at equal intervals, but is not limited to this, it is also possible that a plurality of oil distribution ports are formed at random. .

The oil pan structure for the automatic transmission in this way is such that the oil (7) present inside the oil pan (1) is operated by an oil pump in which the oil is introduced into the valve body (5) through the oil filter (3). do.

As described above, the oil 7 introduced into the valve body 5 controls and returns a predetermined friction element according to the driving state of the vehicle, and is returned to the oil pan 1.

At this time, the oil (7) circulated in the transmission occurs when it contains a foreign matter therein.

Among the foreign matters, in particular, the metal foreign matter 20, which has a lethal effect on the life of the transmission, will also be contained. ) Is adsorbed.

At this time, the metal foreign matter 20 adsorbed by the flow of the oil 7 is blocked in the flow of the rib 11 to prevent the flow into the oil filter (3).

In addition, even if the mesh member 13 or the oil dam 15 is used instead of the rib 11, the effect is the same.

[Effect of design]

The oil pan structure for the automatic transmission according to the present invention, by adsorbing the metal foreign matter contained in the oil by a magnetic body mounted on the bottom surface of the oil pan and by blocking the flow of the metal foreign matter adsorbed by the rib life of the oil filter At the same time it can increase the durability of the transmission.

Claims (6)

An oil pan (1) disposed at a lower end of the transmission and fixedly coupled to form a predetermined chamber and mounted with a plurality of magnetic bodies (9) fixedly disposed on a bottom thereof; An oil filter 3 disposed in the chamber of the oil pan 1, Connected to the oil filter (3) and comprising a valve body (5) for controlling each friction element; An oil pan structure for an automatic transmission comprising impurity flow suppressing means fixedly disposed on an inner bottom surface of the oil pan (1) and suppressing flow of impurities collected in the magnetic body (9). 2. The oil pan structure according to claim 1, wherein the impurity flow suppressing means forms a rib (11) on one side of the inner bottom surface of the oil pan (1) so as to protrude vertically upward. The oil pan structure of claim 2, wherein a plurality of ribs are provided. The method of claim 1, wherein the impurity flow suppressing means is characterized in that the mesh member 13 is arranged horizontally spaced apart from the bottom surface by a predetermined distance to the upper end of the inner bottom of the oil pan (1) to enable the vertical movement of the oil flow. Oil pan structure for automatic transmission. The method of claim 1, wherein the impurity flow suppressing means is fixed to the inner bottom of the oil pan (1) and formed with an oil dam member (15) protruding upward and an oil outlet (17) is formed to allow the flow of left and right oils. Oil pan structure for automatic transmission. 6. The oil pan structure according to claim 5, wherein the oil outlets (17) are formed in plural so as to have equal intervals in the vertical direction.