KR101315771B1 - Enginge mount for vehicle - Google Patents

Abstract

The present invention relates to an engine mount, and, in a vehicle engine mount mounted on an engine of a vehicle, by using a shape having proven durability, a vehicle engine mount that can be manufactured to have various characteristic ratios even in a single mold shape. For the purpose.
To this end, the present invention and the inner core is formed with a fastening groove for fixing to the engine; An upper insulator integrally formed along a circumference of the inner core; An upper plate having a shape engaged with a bottom surface of the upper insulator; A lower plate engaged with the upper plate at a lower side of the upper plate; And a lower insulator formed separately from the upper insulator and having an upper surface engaged with a bottom surface of the lower plate, wherein the lower plate is coupled to the upper plate to provide a vehicle engine mount.
In the present invention, in forming a coupling structure between the upper plate and the lower plate, by forming a fixed end protruding along the periphery of the outer surface of the bottom of the upper insulator, by forming a plurality of protrusions along the outer periphery It is configured to be tightly fixed to the fixed end of the upper plate while the protrusion of the lower plate is bent.

Description

Engine mount {Enginge mount for vehicle}

The present invention relates to an engine mount, and more particularly to an engine mount for a vehicle that is mounted to the engine of the vehicle.

As is well known, an engine mount having an anti-vibration function is provided as a means for catching vibration and noise transmitted from the engine room to the interior of the engine room and shaking of the engine due to engine vibration. It is installed in between.

The engine mount usually includes an insulator made of a rubber material, and is made of a fluid encapsulated structure having a vibration-damping force by being filled with a viscous fluid.

The fluid-enclosed engine mount has a structure capable of appropriately attenuating vibrations over a wide range of areas such as low frequency / high amplitude vibration or high frequency / low amplitude vibration input when the engine is driven by using the viscosity of the fluid and the characteristics of rubber. Have

5 shows a conventional engine mount having such a structure.

As shown in FIG. 5, in the conventional engine mount, a bolt coupling end 102 is formed at an upper end portion thereof, a stopper forming end 104 is integrally formed at an circumferential portion thereof, and an insulator forming bridge 106 is formed at an lower end portion thereof. Inner core 100 is formed integrally with; Rubber material integrally formed by the vulcanization molding process over the circumferential surface of the bolt fastening end 102 of the inner core 100, the outer surface of the stopper forming end 104, and the surface of the insulator forming bridge 106. The insulator 110 of the.

In addition, although not shown, including a housing surrounding the bottom surface of the inner core 100 and the insulator 110 vulcanized with rubber, the internal configuration is fixed by the housing, while being configured to protect from external impact do.

At this time, the portion of the insulator 110 formed integrally with the stopper forming end 104 of the inner core 100 becomes the front and rear, left and right directions (X, Y direction) stopper 114, the insulator 110 At the lower end of the portion, the portion with the largest amount of rubber is used to cushion the up and down direction (Z direction).

Installation of the engine mount by connecting a bolt (not shown) which is fastened to the bolt coupling end 102 of the inner core 100 and protrudes upwards, and assembling a mounting bracket (not shown) installed in the housing to the vehicle body side. Is completed.

On the other hand, in the conventional vehicle engine mount, attempts have been made to improve the characteristics by arranging saddle stitching inside the anti-vibration rubber. This technique arranges saddle stitching horizontally inside an insulator, and forms the said saddle stitching integrally with anti-vibration rubber | gum.

However, the conventional technique of inserting saddle stitching into the insulator is disadvantageous to durability as saddle stitching is applied, and thus it is difficult to use despite many advantages.

In addition, the conventional vehicle engine mount requires a very expensive mold in order to insert the saddle stitching, and since the insulator is composed of one material, a new shape of the engine mount is required to obtain a desired three-way characteristic ratio. There was a problem in that a mold must be newly produced whenever a characteristic ratio needs to be newly set.

In addition, in the conventional vehicle engine mount, there is a possibility that it may be impossible to configure a desired characteristic ratio in some cases, and there was a limit that requires continuous verification of durability problems when configuring the characteristic ratio.

Therefore, the present invention has been made to solve the above problems, in the present invention can be ensured durability by using a shape that has already been verified for durability, even in a single shape made of a single mold made of various characteristics ratio It is an object of the present invention to provide an engine mount for a vehicle having a degree of freedom for setting the characteristic ratio so as to be possible.

In order to achieve the above object, the present invention and the inner core is formed with a fastening groove for fixing to the engine; An upper insulator integrally formed along a circumference of the inner core; An upper plate having a shape engaged with a bottom surface of the upper insulator; A lower plate engaged with the upper plate at a lower side of the upper plate; And a lower insulator formed separately from the upper insulator and having an upper surface engaged with a bottom surface of the lower plate, wherein the lower plate is coupled to the upper plate to provide a vehicle engine mount.

In addition, the upper plate is formed with a fixed end protruding along the periphery of the outer surface of the bottom of the upper insulator, the lower plate is formed with a plurality of protrusions along the outer periphery, the protrusion of the lower plate is bent and the It provides an engine mount for a vehicle, which is fixed in close contact with the fixed end.

In addition, the upper plate and the lower plate provides a vehicle engine mount, characterized in that a vulcanized rubber layer is formed.

In addition, the upper insulator and the lower insulator provide a vehicle engine mount, characterized in that made of different materials.

In addition, the protrusion provides a vehicle engine mount, characterized in that formed on the outer periphery of the lower plate at equal intervals.

The vehicle engine mount according to the present invention has the following effects.

First, in the present invention, it is possible to continuously use the engine mount shape has proven durability, there is an effect that can ensure a certain level of durability even if the characteristic ratio is changed.

Second, in the present invention, by changing the material of the upper insulator and the lower insulator with only a mold for a particular shape, there is an effect that can realize various three-way characteristic ratio.

Third, according to the present invention, the upper insulator and the lower insulator are made of two kinds of materials than the vehicle engine mount manufactured by a single material, thereby improving durability.

1 is a cross-sectional view showing an engine mount for a vehicle according to a preferred embodiment of the present invention,
FIG. 2 shows the upper and lower insulators separated from the vehicle engine mount of FIG. 1;
3a to 3c show the assembly process of the vehicle engine mount according to a preferred embodiment of the present invention,
4 shows that the upper insulator and the lower insulator are assembled by curling the lower plate in the vehicle engine mount according to the preferred embodiment of the present invention.
5 illustrates a conventional vehicle engine mount.

In the vehicle engine mount according to the present invention, by forming an internal insulator in a structure in which an upper insulator and a lower insulator are divided, while providing an engine mount for a vehicle having a structure in which an upper plate and a lower plate are interposed therebetween, and fastening them. It provides a vehicle engine mount that can realize various three-way characteristic ratios with one mold.

Hereinafter, a vehicle engine mount according to a preferred embodiment of the present invention with reference to the accompanying drawings in detail as follows.

1 illustrates a cross-sectional view of a vehicle engine mount according to a preferred embodiment of the present invention, and FIG. 2 illustrates a structure of the upper and lower parts separated from the vehicle engine mount of FIG. 1.

1 and 2, the vehicle engine mount according to the present invention includes an inner core 10 formed to be fixed to an engine, and an upper insulator 20 integrally formed along the circumference of the inner core 10. And a lower insulator 50 which is formed separately from the upper insulator 20 and buffers the upper insulator 20.

The inner core 10 may be formed with a fastening groove having a screw thread formed therein to be fixed to the engine side, and may be configured to be fixed by a fastening bolt (not shown).

In particular, the vehicle engine mount according to the present invention is characterized in that the upper insulator 20 and the lower insulator 50 has a structure that is separated.

Therefore, in the vehicle engine mount according to the present invention, the upper insulator 20 and the lower insulator 50 are manufactured separately by separate molds. In addition, in the vehicle engine mount according to the present invention, the upper insulator 20 and the lower insulator 50 may be made of different materials. That is, in the present invention, since the lower insulator 50 may be formed of a material different from that of the upper insulator 20, various three-way characteristic ratios may be obtained according to the combination of these materials.

Table 1 below shows that the stiffness ratio can be changed by changing the material.

Same shape

material


Stiffness ratio
Top

lower
Example 1

HS52
HS52
0.56
Example 2

HS45
HS65
0.66
Example 3

HS65
HS45
0.46

Therefore, as can be seen in Table 1 above, in the vehicle engine mount according to the present invention, the desired three-way characteristic ratio can be obtained by appropriately changing the material of the upper insulator 20 and the lower insulator 50.

On the other hand, the vehicle engine mount according to the present invention is formed with an upper plate 30 engaging the shape of the bottom surface on the bottom of the upper insulation. The upper plate 30 may be made of a metal material, and as shown in FIG. 2, a fixed end 31 protruding outward from the bottom surface of the upper insulator 20 is formed along its outer circumference.

Further, in the vehicle engine mount according to the present invention, the lower plate 40 is formed on the upper surface of the lower insulator to engage the shape of the upper surface. Like the upper plate 30, the lower plate 40 may also be made of a metal material, and a plurality of protrusions 41 for engaging with the fixed end 31 of the upper plate 30 are formed along the outer circumference thereof. do.

Each of the protrusions 41 is folded to the fixed end 31 side of the upper plate 30 to form a curling structure when the upper insulator 20 and the lower insulator 50 are coupled as shown in FIG. 1. Through the curling structure, the lower plate 40 may be fixed to the upper plate 30.

Preferably, in the process of manufacturing the upper insulator 20 and the lower insulator 50 by vulcanization molding, the upper plate 30 and the lower plate 40 are placed in a mold so that each of the upper insulator 20 and the lower insulator 20 is lowered. It can be molded integrally with the insulator 50.

Thus, the upper insulator 20 and the lower insulator 50 are manufactured separately and exist in separate states from each other. In the manufacturing process of the vehicle engine mount according to the present invention, the upper plate 30 and the lower plate ( Through 40).

Therefore, in the vehicle engine mount according to the preferred embodiment of the present invention, the upper insulator 20 and the lower insulator 50 which are integrally formed with the inner core are engaged with the lower or upper surfaces of the upper plate 30 and the lower plate ( 40) is configured to be integrated as it is fixed.

Meanwhile, FIG. 3 illustrates a process of assembling the vehicle engine mount according to the present invention.

First, in FIG. 3A, an upper insulator 20 integrally formed with the inner core and the upper plate 30 and a lower insulator 50 integrally formed with the lower plate 40 are manufactured.

In particular, in the preferred embodiment of the present invention, a rubber vulcanization layer having a thickness of about 1 mm may be formed on the upper surface of the lower plate 40 and the lower surface of the upper plate 30, respectively.

When the rubber vulcanization layer is bonded to each other while the lower plate 40 and the upper plate 30 are assembled, the rubber vulcanization layer may be in close contact with each other to prevent the fluid from leaking.

Thereafter, as shown in FIG. 3 (b), the upper configuration including the upper insulator 20 is assembled onto the lower configuration including the lower insulator 50 by assembling the upper and lower components manufactured as described above. To be seated.

Next, as shown in FIG. 3 (c), the curling structure is formed by bending the plurality of protrusions 41 formed on the lower plate 40 upward and closely contacting the fixed end 31 of the upper plate 30. To form and integrate.

In this regard, FIG. 4 specifically illustrates forming such a curling structure. Referring to FIG. 4, as shown in FIG. 3B, in a state in which the upper configuration is seated on the lower configuration, a plurality of the upper plates 30 are formed on the lower plate 40 outside the fixed end 31 of the upper plate 30. The protrusion 41 is protruded outward. Therefore, the lower plate 40 is configured to be fixed on the upper plate 30 while forming the curling structure by folding each protrusion 41 toward the fixed end 31 side.

At this time, in the case where the rubber vulcanization layers are respectively formed on the upper plate 30 and the lower plate 40, the rubber vulcanization layers are brought into close contact with each other on the contact surface, thereby preventing the leakage of fluid.

Preferably, the protrusions 41 may be formed at equal intervals on the outer circumference of the lower plate 40. In this case, in the curling structure at each of the protrusions 41, the upper plate 30 and the lower plate ( 40) It is possible to apply a uniform force between the fluid to prevent the leakage of the fluid.

Table 2 below shows the results of analyzing the case of the upper and lower insulators composed of different materials in the vehicle engine mount according to the present invention compared with the case of the same material. In this case, in the X-direction finite element analysis, the X-direction analysis was performed after 7 mm deflection considering the deflection due to the load of the engine.

That is, in Table 2, the upper insulator and the lower insulator are composed of the same material "HS52" and the case of the upper insulator and the lower insulator are composed of different materials "HS60" and "HS45", respectively, As can be seen from these analysis results, when the insulator material of the vehicle engine mount is composed of different materials in the upper and lower ends, it can be seen that the body strain strain coefficient is reduced as compared with the case of the same material, so that durability is improved. You can see that.

On the other hand, Table 3 below shows that when the upper insulator and the lower insulator are made of the same material or different materials using the same mold, the stiffness ratio is changed.

That is, as can be seen from these comparison results, when only the material of the upper insulator or the lower insulator is changed, it can be seen that the stiffness ratio, which means the X / Z characteristic ratio, may be changed even when the same mold is used.

Therefore, in the vehicle engine mount according to the present invention, since the mold for the shape whose durability has been verified can be used as it is, durability can be secured, and the durability performance can be improved only by changing the material within the optimized design shape, and the desired three-direction The characteristic ratio can be implemented.

While the present invention has been described with reference to the preferred embodiments, those skilled in the art will appreciate that modifications and variations are possible in the elements of the invention without departing from the scope of the invention. In addition, many modifications may be made to the particular situation or material within the scope of the invention, without departing from the essential scope thereof. Therefore, the present invention is not limited to the detailed description of the preferred embodiments of the present invention, but includes all embodiments within the scope of the appended claims.

10: inner core 20: upper insulator
30: upper plate 31: fixed end
40: lower plate 41: protrusion
50: lower insulator

Claims (5)

An inner core having a fastening groove for fixing to the engine;
An upper insulator integrally formed along a circumference of the inner core;
An upper plate having a shape engaged with a bottom surface of the upper insulator;
A lower plate engaged with the upper plate at a lower side of the upper plate;
A lower insulator formed separately from the upper insulator and having an upper surface engaged with a lower surface of the lower plate;
It is made, including the lower plate is fixed and coupled to the upper plate,
The upper plate is provided with a fixed end protruding along the periphery of the outer surface of the bottom of the upper insulator, the lower plate is formed with a plurality of protrusions along the outer periphery, the protrusion of the lower plate is bent and the fixed end of the upper plate An engine mount for a vehicle, which is fixed in close contact with the vehicle.
delete The method according to claim 1,
The upper engine plate and the lower plate vehicle engine mount, characterized in that a vulcanized rubber layer is formed.
The method according to claim 1,
And the upper insulator and the lower insulator are made of different materials.
The method according to claim 1,
And the protrusion is formed on the outer circumference of the lower plate at equal intervals.

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