KR101746461B1 - Structure of engine-mount - Google Patents

Structure of engine-mount Download PDF

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Publication number
KR101746461B1
KR101746461B1 KR1020150169634A KR20150169634A KR101746461B1 KR 101746461 B1 KR101746461 B1 KR 101746461B1 KR 1020150169634 A KR1020150169634 A KR 1020150169634A KR 20150169634 A KR20150169634 A KR 20150169634A KR 101746461 B1 KR101746461 B1 KR 101746461B1
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KR
South Korea
Prior art keywords
nozzle
plate
bent portion
membrane
hole
Prior art date
Application number
KR1020150169634A
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Korean (ko)
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KR20170064196A (en
Inventor
서성원
Original Assignee
현대자동차주식회사
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Priority to KR1020150169634A priority Critical patent/KR101746461B1/en
Publication of KR20170064196A publication Critical patent/KR20170064196A/en
Application granted granted Critical
Publication of KR101746461B1 publication Critical patent/KR101746461B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
    • B60K5/12—Arrangement of engine supports
    • B60K5/1208—Resilient supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
    • B60K5/12—Arrangement of engine supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
    • F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
    • F16F13/10—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Devices Of Dampers And Springs (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The present invention relates to a structure of an engine mount in which a nozzle plate is mounted such that an interior filled with a hydro liquid is partitioned into an upper liquid chamber and a lower liquid chamber and a flow path is formed in the nozzle plate, A nozzle plate on which a membrane is mounted on an upper end of a rim of the center hole and a nozzle upper having an upper center hole formed in the center thereof is seated on the nozzle lower portion; And a plate disposed on the nozzle upper surface to cover the upper center hole and the membrane, the plate having an inlet and a hole for allowing the hydro liquid to flow in and out, and the inner diameter of the inlet and outlet holes is reduced when the pressure transferred through the hydro liquid increases. So that it can be elastically deformed.
According to the present invention having the above-described structure, when a large displacement is input, the plate blocks the flow of the hydro liquid which pressurizes the membrane, thereby suppressing the occurrence of the joint.

Description

Structure of engine mount {Structure of engine-mount}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an engine mount which is mounted on a vehicle body to support a load of an engine and attenuates vibrations and more particularly to a structure of an engine mount that prevents excessive pressure from being transmitted to a membrane when a large- Noise of the engine mount can be prevented from occurring.

In order to insulate and attenuate the vibration of the engine, the engine of the vehicle is installed in the engine room of the vehicle body through the engine mount. In the passenger car, the rubber mount which insulates and attenuates the vibration through the elastic force of the rubber and the hydro- A constructed hydro engine mount (fluid-sealed engine mount) is widely used.

The hydro engine mount has a structure in which a predetermined amount of hydro liquid is enclosed therein to damp vibration in accordance with the flow of the hydro liquid, and has the effect of simultaneously attenuating vibrations in a high frequency region and a low frequency region The scope of application is increasing.

1, an insulator 10 of an elastic material is coupled from the inside to the upper side of the housing, and a diaphragm 12 is coupled to the lower end of the housing. The insulator 10 is interposed between the insulator 10 and the diaphragm 12 A nozzle plate 20 is mounted, and the inner space is partitioned into an upper liquid chamber and a lower liquid chamber.

The nozzle plate 20 is formed by combining a nozzle lower 22 and a nozzle upper 21. The nozzle lower 22 has a structure in which a lower center hole 22a is formed in the center and an annular channel groove is formed along the periphery of the lower center hole 22a (forming a lower portion of the channel) . One end of the flow channel is punctured so that the flow channel is opened with the lower liquid chamber.

A nozzle upper 21 having an upper center hole 21a at its center is seated above the nozzle lower 22. A hole is formed in the nozzle upper 21 so as to be connected to the other end of the flow path groove. Since the upper side of the flow path groove is closed by the nozzle upper 21, a 'flow path' capable of flowing hydro liquid is formed. Thus, one side of the flow path is opened with the upper liquid chamber and the other side is opened with the lower liquid chamber.

On the other hand, the flow of the hydro liquid through the flow path is performed when the internal volume of the upper liquid chamber is increased or decreased when the insulator 10 is elastically deformed by the load movement and vibration transmitted from the engine. At this time, the membrane 23 may be selectively installed between the nozzle lower 22 and the nozzle upper 21 in order to improve vibration characteristics and damping performance (to increase the volume change of the upper liquid chamber).

The upper surface of the membrane 23 is exposed to the upper center hole 21a and the lower surface of the membrane 23 is exposed to the lower center hole 22a, 3) is fitted with a rim portion. At this time, the nozzle drawer 22 has a shape in which a stopping jaw is formed so that a rim portion of the membrane 23 can be seated. The membrane 23 is mounted such that a clearance is formed so that the membrane 23 can be oscillated up and down by the engaging portion (the portion indicated by the arrow 'a' in FIG. 1) and the hydro liquid can flow.

In the engine mount having the membrane 23, when the urine enters the urine absorbing fluid, the hydro liquid can not pass through the flow path due to fluid inertia of the hydro liquid, and flows to the meshed portion (a path in FIG. 1) When a large displacement is input, the hydro fluid flows through the flow path (path b in FIG. 1) to generate a damping force.

However, when a large displacement is inputted, even if the hydro liquid flows through the nozzle, the pressure that presses downward (c direction in Fig. 1) acts on the membrane 23. [ Accordingly, in the conventional structure, there is a problem that the rim of the membrane 23 at the engaged portion hits the nozzle lower portion 22 and the nozzle upper portion 21 to generate a joint.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a structure of an engine mount capable of increasing the durability of a membrane by suppressing occurrence of joints and preventing excessive elastic deformation of the membrane by solving the problems of the conventional structure as described above It is the main purpose.

According to an aspect of the present invention, there is provided a nozzle plate, including a nozzle plate such that an interior of the nozzle plate is partitioned into an upper liquid chamber and a lower liquid chamber, the upper and lower liquid chambers communicating with each other, Wherein a nozzle upper having a lower center hole at the center thereof and a membrane centered on an upper edge of the lower center hole and having an upper center hole formed at the center thereof is disposed in the nozzle hole, A nozzle plate seated above; And a plate disposed on the nozzle upper surface to cover the upper center hole and the membrane, the plate having an inlet and a hole for allowing the hydro liquid to flow in and out, and the inner diameter of the inlet and outlet holes is reduced when the pressure transferred through the hydro liquid increases. So that it can be elastically deformed.

The plate has a disk-like shape, and a first bent portion bent at a predetermined angle is formed at a rim portion so that the entrance and exit holes are spaced apart from the upper portion of the membrane.

A seating portion having an increased width and seated on an upper surface of the nozzle upper portion is formed at an end of the first bent portion. In the present invention, the seat portion is attached to the upper surface of the nozzle upper by an adhesive or embedded in a fixing groove formed on the upper surface of the nozzle upper portion.

A second bent portion is formed to extend from the first bent portion to have a slope rising toward the center side from a side connected to the first bent portion. The entrance hole is formed at the center of the plate and is formed with a third bent portion extending from the second bent portion and having a slope rising toward the entrance hole side than a side connected to the second bent portion.

The second bending portion is elastically deformed so that the third bending portion is lowered so that the inner diameter of the access hole is reduced or shielded. Further, when the plate is elastically deformed, one or more slots are formed in the third bent portion so as to induce the reduction of the inner diameter of the entrance hole.

In the embodiment of the present invention, the inclination angle of the third bent portion from the upper surface of the nozzle upper is formed larger than the inclination angle of the second bent portion from the upper surface of the nozzle upper.

The present invention having the above-described structure has an effect of suppressing the generation of a joint (a hitting sound of the membrane hitting the nozzle and the nozzle upper) by blocking the flow of the hydro liquid which pressurizes the membrane when the large displacement is input .

Since the plate of the present invention is formed with the first bent portion and the inlet / outlet hole is disposed at a predetermined distance from the plate, it does not come into contact with the membrane even under elastic deformation, and when the load is applied from the upper side to the lower side, Since the internal diameter of the hole is reduced, no additional parts are required, and the construction is relatively simple, so that the production cost is not greatly increased, and further application to the conventional engine mount is possible

In addition, since the excessive elastic deformation of the membrane is suppressed, the endurance performance can be increased, and the slit can be formed in the third bent portion, so that the inner diameter of the access hole can be more effectively reduced.

1 is an enlarged view of a conventional engine mount cut in a longitudinal direction and a nozzle plate,
FIG. 2 is a cross-sectional view illustrating a plate mounted on a nozzle plate according to a preferred embodiment of the present invention. FIG.
3 is a view showing a state where a plate is mounted with the engine mount being cut in the longitudinal direction according to a preferred embodiment of the present invention,
FIG. 4 is a view showing a state where a seating portion of a plate is attached to an upper surface of a nozzle upper with an adhesive, and a seating portion is embedded and fixed in a fixing groove formed in an upper surface of a nozzle upper,
5 is a cross-sectional view showing a state in which the plate moves in a urine state and a cross-sectional view in which a plate moves in a large displacement state.
6 illustrates a slot formed in a third bend according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings in order that the present invention can be easily carried out by those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

In addition, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings, and the inventor should properly define the concept of the term to describe its invention in the best way. It should be construed as meaning and concept consistent with the technical idea of the present invention.

The present invention relates to a structure of an engine mount in which a nozzle plate (20: 21, 22) is mounted so as to partition the inside of which a hydro liquid is enclosed into an upper liquid chamber and a lower liquid chamber, 30 is mounted and a large displacement is input, the flow of the hydro liquid toward the membrane 23 is reduced or suppressed.

2 and 3, the nozzle plate 20 according to the present invention includes a nozzle hole 22 having a lower center hole 22a formed at the center thereof (as in the conventional structure) And a nozzle upper portion 21 having an upper center hole 21a at the center thereof is seated on the nozzle lower portion 22 and the membrane 23.

The plate 30 is placed on the nozzle upper 21 so as to cover the upper center hole 21a and the membrane 23 and the inlet and outlet holes 34 are formed so that the hydro liquid can flow in and out. The plate 30 is made of a material capable of being elastically deformed under pressure (for example, synthetic rubber, soft plastic, or the like) so that the inner diameter of the inlet / outlet hole 34 can be reduced It is elastically deformable.

3, the plate 30 according to the preferred embodiment of the present invention has a disk-like shape, and has a constant shape such that the entrance and exit holes 34 are spaced apart from the upper side of the membrane 23 A first bent portion 31 bent at an angle is formed.

At the end of the first bent portion 31, a seating portion 35 having a width increased and fixed to the upper surface of the nozzle upper portion 21 is formed. 4, the seating part 35 is attached to the upper surface of the nozzle upper 21 with an adhesive or embedded in the fixing groove 21b formed on the upper surface of the nozzle upper 21, B>.

A second bent portion 32 is formed to extend from the first bent portion 31 and have a slope that is inclined upward toward the center side from a side connected to the first bent portion 32, A third bent portion 33 extending from the second bent portion 32 and having an inclination rising toward the center of the entrance hole 34 is formed on the side of the second bent portion 33 connected to the second bent portion 33, 34 are positioned at the center of the third bent portion 33.

As shown in the figure, if the second bent portion 32 is elastically deformed such that the third bent portion 30 is lowered, the inner diameter of the access hole 34 is reduced or shielded. That is, when the excitation is inputted, the second bending portion 32 and the third bending portion 33 are elastically deformed downward so that the inner diameter of the access hole 34 is reduced, and the urine The inlet hole 34 is reduced in size so as to allow the hydro liquid to flow in and out (that is, to have a dynamic characteristic equivalent to that of the conventional structure), whereas when the large displacement is input, The inner diameter is reduced to the extent that it is completely shielded.

At this time, the reduction range of the entrance hole 34 may be tuned according to the shape and size of the material characteristic entrance / exit hole 34 of the plate 30, but in another embodiment of the present invention, One or more slots 33a may be formed in the third bent portion 33 as shown in Fig. 6 so that the reduction of the inner diameter of the access hole 34 can be more efficiently induced.

In order that the load during the flow of the hydro liquid is concentrated on the third bent portion 33 in the vicinity of the access hole 34 so that the elastic deformation of the third bent portion 33 can be more efficiently performed, It is preferable that the inclination angle beta of the third bent portion 33 from the upper surface is formed larger than the inclination angle alpha of the second bent portion 32 from the upper surface of the nozzle upper 21 (see FIG. 2).

The present invention having the above-described structure can prevent origination of the membrane 23, which is a chronic problem of the conventional structure, from occurring, and when the large displacement is inputted, the hydro liquid flows toward the membrane 23 So that the damping performance can be further improved (by increasing the flow through the flow path).

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Will be apparent to those of ordinary skill in the art.

10: Insulator
12: Diaphragm
20: nozzle plate
21: Nozzle Upper
22: Nozzle
30: Plate
31: first bent portion
32: second bend section
33: third bent portion
34: Access hole

Claims (9)

A nozzle plate is mounted so as to partition the inside of which the hydro-liquid is enclosed into an upper liquid chamber and a lower liquid chamber, wherein a flow path is formed in the nozzle plate,
A nozzle plate on which a membrane is mounted on an upper edge of the lower center hole in a nozzle lower portion having a center hole formed at the center thereof and a nozzle upper portion having an upper center hole formed at the center thereof is seated on the nozzle lower portion; And
And a plate disposed on the nozzle upper so as to cover the upper center hole and the membrane and having an inlet and an outlet hole to allow the hydro liquid to flow in and out,
The plate is elastically deformable so that the inner diameter of the inlet and outlet holes can be reduced when the pressure transferred through the hydro liquid increases,
The plate has a plate-like shape, and a first bending portion bent at a predetermined angle is formed at a rim portion so that the entrance and exit holes are spaced apart from the upper portion of the membrane,
And a second bent portion formed to extend from the first bent portion to have a slope rising toward the center side from a side connected to the first bent portion.
delete The structure of an engine mount as claimed in claim 1, wherein a seating portion having an increased width and seated on an upper surface of the nozzle upper portion is formed at an end of the first bent portion.
The structure of an engine mount as claimed in claim 3, wherein the seat portion is attached to an upper surface of a nozzle upper by an adhesive or embedded in a fixing groove formed on an upper surface of the nozzle upper portion.
delete [2] The apparatus of claim 1, wherein the entrance and exit holes are formed at the center of the plate and have a third bent portion formed to extend from the second bent portion to have a slope rising toward the entrance hole side from a side connected to the second bent portion Features of the engine mount.
The structure of an engine mount according to claim 6, wherein the plate is elastically deformed so that the third bent portion descends, so that the inner and outer diameters of the access hole are reduced or shielded.
8. The structure of claim 7, wherein at least one slot is formed in the third bent portion so as to induce reduction of the inner diameter of the inlet hole when the plate is elastically deformed.
The structure of an engine mount according to claim 7, wherein the inclination angle of the third bent portion from the upper surface of the nozzle upper is larger than the inclination angle of the second bent portion from the upper surface of the nozzle upper.
KR1020150169634A 2015-12-01 2015-12-01 Structure of engine-mount KR101746461B1 (en)

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KR1020150169634A KR101746461B1 (en) 2015-12-01 2015-12-01 Structure of engine-mount

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150169634A KR101746461B1 (en) 2015-12-01 2015-12-01 Structure of engine-mount

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KR20170064196A KR20170064196A (en) 2017-06-09
KR101746461B1 true KR101746461B1 (en) 2017-06-13

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101427737B1 (en) * 2013-05-10 2014-08-26 평화산업주식회사 membrane of hydro engin mount

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101427737B1 (en) * 2013-05-10 2014-08-26 평화산업주식회사 membrane of hydro engin mount

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