US20180195575A9 - Active engine mount having vent hole - Google Patents
Active engine mount having vent hole Download PDFInfo
- Publication number
- US20180195575A9 US20180195575A9 US15/479,863 US201715479863A US2018195575A9 US 20180195575 A9 US20180195575 A9 US 20180195575A9 US 201715479863 A US201715479863 A US 201715479863A US 2018195575 A9 US2018195575 A9 US 2018195575A9
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- US
- United States
- Prior art keywords
- hole
- engine mount
- active engine
- exciter
- partition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- 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
- F16F13/26—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 characterised by adjusting or regulating devices responsive to exterior conditions
- F16F13/264—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 characterised by adjusting or regulating devices responsive to exterior conditions comprising means for acting dynamically on the walls bounding a working chamber
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- 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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/027—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means comprising control arrangements
- F16F15/0275—Control of stiffness
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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
-
- 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
- B60K5/1283—Adjustable supports, e.g. the mounting or the characteristics being adjustable
-
- 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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- 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
- F16F13/14—Units of the bushing type, i.e. loaded predominantly radially
- F16F13/1463—Units of the bushing type, i.e. loaded predominantly radially characterised by features of passages between working chambers
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- 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
- F16F13/26—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 characterised by adjusting or regulating devices responsive to exterior conditions
-
- 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
-
- 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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/02—Special physical effects, e.g. nature of damping effects temperature-related
- F16F2222/025—Cooling
-
- 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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
-
- 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
- F16F2230/00—Purpose; Design features
- F16F2230/06—Fluid filling or discharging
Definitions
- the present invention relates to an active engine mount, and more particularly, to an active engine mount for improving driving efficiency by forming a vent hole on a damper assembly to discharge air inside the damper assembly to the outside.
- an engine mount of a vehicle performs a function of supporting an engine and simultaneously serves to reduce vibration within a short time in order to prevent a phenomenon in which vibrations delivered from the engine to a passenger impair riding comfort.
- Such an active engine mount is configured to receive power according to an algorithm which is predetermined on the basis of an acceleration signal and information about conditions of a vehicle engine and a driving status to vary characteristics of the engine mount according to the driving conditions or the working status of the engine, and therefore it is advantageous in that the riding comfort and driving performance of the vehicle can be further improved.
- a conventional active engine mount has a problem in that a coil generates heat of high temperatures due to various causes such as heat generation caused by excitation of an exciter, exhaust heat of an engine, and radiant heat of a road. This remarkably decreases durability of an elastic member, and also causes another problem of decreasing driving efficiency caused by air expansion because, in particular, an interior space of the engine mount is sealed.
- Patent Document Korean Laid Open Utility Model No. 20-1999-0016017
- example embodiments of the present invention are directed to reduction of a decrease in durability and performance caused by internal heat generation and air expansion in an active engine mount.
- the present invention is directed to an active engine mount having a vent hole, wherein the active engine mount includes a damper assembly having an exciter.
- the damper assembly in the active engine mount which controls pressure of a main chamber as the exciter is excited has the vent hole formed thereon to enable communication from a lower part of the exciter to the outside so that air inside the damper assembly can be discharged to the outside.
- the damper assembly may include a purification filter which is provided at the vent hole to filter a foreign substance introduced from the outside.
- the damper assembly may include an upper orifice which is exposed on the main chamber, an exciting unit which is provided at a lower part of the upper orifice and includes the exciter, a driving unit which is provided at a lower part of the exciting unit and excites the exciter, a partition which is provided at a lower part of the driving unit to form a subchamber between the driving unit and the partition, and a lower orifice in which the exciting unit and the driving unit are accommodated and that enables communication between the main chamber and the subchamber, wherein the vent hole is formed to penetrate the exciting unit, the driving unit, and the partition.
- the driving unit may include a magnet on which a first through-hole is formed, a lower housing on which the magnet is mounted and a second through-hole in communication with the first through-hole is formed, a coil which surrounds the magnet, a bobbin around which the coil is wound, and an inner housing which is provided between the bobbin and the magnet and on which a third through-hole in communication with the first through-hole is formed.
- the first through-hole may include a purification filter for filtering a foreign substance introduced from the outside.
- a vertical length of the purification filter may be formed to be smaller than a vertical length of the magnet such that steps are formed between the purification filter and the magnet, and the lower housing and the inner housing may include protrusions which are inserted into the steps.
- a stopper in which a fourth through-hole in communication with the third through-hole is formed and that fixes the bobbin to the inner housing may be further included.
- a recessed groove may be formed at a lower part of the lower housing, and the partition may include an inserting portion which is inserted into the recessed groove.
- a fixing member which fixes the partition to the lower housing by passing through the partition to be inserted into the second through-hole and on which a fifth through-hole in communication with the first through-hole is formed may be further included.
- FIG. 1 is a view illustrating an exterior of an active engine mount according to one embodiment of the present invention
- FIG. 2 is a view illustrating an inner structure of the active engine mount according to one embodiment of the present invention
- FIG. 3 is a view illustrating components of a damper assembly in the active engine mount according to one embodiment of the present invention
- FIG. 4 is a view illustrating an inner structure of the damper assembly in the active engine mount according to one embodiment of the present invention in detail.
- FIGS. 5 and 6 are views illustrating a structure of a vent hole in the active engine mount according to one embodiment of the present invention in detail.
- FIG. 1 is a view illustrating an exterior of an active engine mount 1 according to one embodiment of the present invention
- FIG. 2 is a view illustrating an inner structure of the active engine mount 1 according to one embodiment of the present invention.
- the active engine mount 1 includes a damper assembly 100 and a body assembly 10 which encloses and is coupled to the damper assembly 100 as shown in FIG. 1 .
- the body assembly 10 includes an upper case 12 which encloses the damper assembly 100 , and a core 20 and an elastic member 30 which are provided inside the upper case 12 .
- the core 20 protrudes toward an upper part of the case 12 to support an engine of a vehicle, and is connected to the elastic member 30 .
- the elastic member 30 is formed of an elastic material so that vibrations delivered from the engine are reduced, and in this case, the elastic member is formed of a rubber with insulating properties.
- the damper assembly 100 includes an upper orifice 110 , a lower orifice 120 , an exciting unit 130 , a driving unit 140 , and a partition 160 .
- the upper orifice 110 is provided on an upper part of the damper assembly 100 to form a main chamber between the core 20 and the elastic member 30 , and a flow hole 112 is formed on the upper orifice such that a fluid accommodated in the main chamber can flow.
- the exciting unit 130 is provided at a lower part of the upper orifice 110 and an exciter is accommodated therein. Further, the driving unit 140 is provided at a lower part of the exciting unit 130 to provide a driving force for exciting the exciter.
- the partition 160 is provided at a lower part of the driving unit 140 , and has a subchamber formed between the driving unit 140 and the partition.
- the lower orifice 120 provides a flow passage for communication between the main chamber and the subchamber, and therefore a fluid flows between the main chamber and the subchamber while absorbing vibrations from the engine.
- the exciting unit 130 and the driving unit 140 are accommodated in the lower orifice 120 , and the fluid may flow through an edge of the lower orifice 120 .
- a sealing member 170 may be provided between the exciting unit 130 and the driving unit 140 in order to prevent the fluid from entering the exciting unit 130 and the driving unit 140 .
- a lower case 150 is coupled to a lower part of the partition 160 .
- the lower case 150 supports the lower orifice 120 and the partition 160 , and provides a gap so that the partition 160 may move to a certain degree.
- FIG. 4 is a view illustrating an inner structure of the damper assembly 100 in the active engine mount according to one embodiment of the present invention in detail, and structures of each component will be described in more detail with reference thereto.
- the exciting unit 130 includes an exciter 131 and a membrane 132 .
- the exciter 131 may be excited vertically by the driving unit 140 .
- the membrane 132 fixes the exciter 131 , movement of the exciter 131 is not restricted because the membrane is formed of an elastic material.
- the driving unit 140 includes a lower housing 141 and an inner housing 142 , and a magnet 146 is provided between the lower housing 141 and the inner housing 142 .
- a coil 144 wound around a bobbin 143 is provided on an outer side of the magnet 146 so that the exciter 131 may be excited by a magnetic field when current is applied to the coil 144 .
- a vent hole H is formed on the damper assembly 100 .
- the vent hole H is an air flow passage which enables communication from a lower part of the exciter 131 to the outside so that air inside the damper assembly 100 can be discharged to the outside.
- the vent hole H is formed to pass through the exciting unit 130 , the driving unit 140 , the partition 160 , and the lower case 150 . That is, the vent hole H is in a shape that entirely enables communication from a direct lower part of the exciter 131 to the lower case 150 in order to prevent air expansion inside a sealed space by excitement of the exciter 131 .
- the air inside the damper assembly 100 is discharged to the outside through the vent hole H while outside air is introduced into the inside, and therefore air is circulated constantly.
- air is circulated constantly.
- FIGS. 5 and 6 are views illustrating a structure of a vent hole H in the active engine mount according to one embodiment of the present invention in detail.
- the magnet 146 includes a first through-hole 146 a in the center thereof, the lower housing 141 includes a second through-hole 141 c which passes through a lower side of the first through-hole, and the inner housing 142 includes a third through-hole 142 a which passes through an upper side of the first through-hole.
- a purification filter 147 is provided in the first through-hole, and the purification filter 147 serves to filter a foreign substance introduced from the outside to prevent the foreign substance from moving to a side of the exciter 131 .
- the purification filter 147 can be provided at any location of the vent hole H.
- a vertical length of the purification filter 147 is formed to be smaller than a vertical length of the magnet 146 so that steps 146 b and 146 c are formed between the purification filter 147 and the magnet 146 .
- the lower housing 141 and the inner housing 142 include protrusions 141 b and 142 c which are inserted into the steps 146 b and 146 c , respectively.
- the lower housing 141 and the inner housing 142 are in shapes in which the protrusions 141 b and 142 c are inserted into a part of the first through-hole 146 a , which strengthens couplings between components and also prevents air flowing through the vent hole H from being introduced between interfaces of the components.
- recessed grooves 142 b and 141 a are formed on the inner housing 142 and the lower housing 141 , respectively.
- the recessed groove 142 b of the inner housing 142 is provided to insert a stopper 145 for fixing the bobbin 143 to the inner housing 142
- the recessed groove 141 a of the lower housing 141 is provided to insert the partition 160 .
- an inserting portion which is inserted into the recessed groove 141 a is formed on the partition 160 .
- a fixing member 148 which passes through the partition 160 to be inserted into the second through-hole of the lower housing 141 is further included to fix the partition 160 .
- a fourth through-hole 145 a in communication with the third through-hole 142 a of the inner housing 142 is formed on the stopper 145
- a fifth through-hole 148 a in communication with the first through-hole 146 a of the magnet 146 is formed on the fixing member 148 .
- the present invention may discharge air from a low part of the exciter 131 to the outside of the lower case 150 or introduce outside air into the inside.
- the present invention may circulate the air constantly, which in turn minimizes internal heat generation and air expansion caused by the internal heat generation.
- the active engine mount having a vent hole can exhibit the following advantages.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Combined Devices Of Dampers And Springs (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
Description
- This application claims priority to and the benefit of Korean Patent Application No. 10-2016-0043714, filed on Apr. 8, 2016, the content of which is incorporated herein by reference in its entirety.
- The present invention relates to an active engine mount, and more particularly, to an active engine mount for improving driving efficiency by forming a vent hole on a damper assembly to discharge air inside the damper assembly to the outside.
- In general, an engine mount of a vehicle performs a function of supporting an engine and simultaneously serves to reduce vibration within a short time in order to prevent a phenomenon in which vibrations delivered from the engine to a passenger impair riding comfort.
- In particular, recently, the development of an active engine mount which vibrates an exciter through an electrical control so that vibrations delivered from an engine mount can be more actively controlled depending on driving conditions of a vehicle or a working status of an engine has been active.
- Such an active engine mount is configured to receive power according to an algorithm which is predetermined on the basis of an acceleration signal and information about conditions of a vehicle engine and a driving status to vary characteristics of the engine mount according to the driving conditions or the working status of the engine, and therefore it is advantageous in that the riding comfort and driving performance of the vehicle can be further improved.
- However, a conventional active engine mount has a problem in that a coil generates heat of high temperatures due to various causes such as heat generation caused by excitation of an exciter, exhaust heat of an engine, and radiant heat of a road. This remarkably decreases durability of an elastic member, and also causes another problem of decreasing driving efficiency caused by air expansion because, in particular, an interior space of the engine mount is sealed.
- Therefore, a method addressing such problems is required.
- (Patent Document) Korean Laid Open Utility Model No. 20-1999-0016017
- Accordingly, example embodiments of the present invention are directed to reduction of a decrease in durability and performance caused by internal heat generation and air expansion in an active engine mount.
- The scope of the present invention is not limited to the above-described objects, and other unmentioned objects may be clearly understood by those skilled in the art from the following descriptions.
- The present invention is directed to an active engine mount having a vent hole, wherein the active engine mount includes a damper assembly having an exciter. The damper assembly in the active engine mount which controls pressure of a main chamber as the exciter is excited has the vent hole formed thereon to enable communication from a lower part of the exciter to the outside so that air inside the damper assembly can be discharged to the outside.
- The damper assembly may include a purification filter which is provided at the vent hole to filter a foreign substance introduced from the outside.
- The damper assembly may include an upper orifice which is exposed on the main chamber, an exciting unit which is provided at a lower part of the upper orifice and includes the exciter, a driving unit which is provided at a lower part of the exciting unit and excites the exciter, a partition which is provided at a lower part of the driving unit to form a subchamber between the driving unit and the partition, and a lower orifice in which the exciting unit and the driving unit are accommodated and that enables communication between the main chamber and the subchamber, wherein the vent hole is formed to penetrate the exciting unit, the driving unit, and the partition.
- The driving unit may include a magnet on which a first through-hole is formed, a lower housing on which the magnet is mounted and a second through-hole in communication with the first through-hole is formed, a coil which surrounds the magnet, a bobbin around which the coil is wound, and an inner housing which is provided between the bobbin and the magnet and on which a third through-hole in communication with the first through-hole is formed.
- The first through-hole may include a purification filter for filtering a foreign substance introduced from the outside.
- A vertical length of the purification filter may be formed to be smaller than a vertical length of the magnet such that steps are formed between the purification filter and the magnet, and the lower housing and the inner housing may include protrusions which are inserted into the steps.
- A stopper in which a fourth through-hole in communication with the third through-hole is formed and that fixes the bobbin to the inner housing may be further included.
- A recessed groove may be formed at a lower part of the lower housing, and the partition may include an inserting portion which is inserted into the recessed groove. A fixing member which fixes the partition to the lower housing by passing through the partition to be inserted into the second through-hole and on which a fifth through-hole in communication with the first through-hole is formed may be further included.
- The above and other objects, features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail exemplary embodiments thereof with reference to the accompanying drawings, in which:
-
FIG. 1 is a view illustrating an exterior of an active engine mount according to one embodiment of the present invention; -
FIG. 2 is a view illustrating an inner structure of the active engine mount according to one embodiment of the present invention; -
FIG. 3 is a view illustrating components of a damper assembly in the active engine mount according to one embodiment of the present invention; -
FIG. 4 is a view illustrating an inner structure of the damper assembly in the active engine mount according to one embodiment of the present invention in detail; and -
FIGS. 5 and 6 are views illustrating a structure of a vent hole in the active engine mount according to one embodiment of the present invention in detail. - The preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the course of description of the embodiments, the same elements will be given the same names and reference numerals, and additional descriptions thereof will be omitted.
-
FIG. 1 is a view illustrating an exterior of anactive engine mount 1 according to one embodiment of the present invention, andFIG. 2 is a view illustrating an inner structure of theactive engine mount 1 according to one embodiment of the present invention. - The
active engine mount 1 according to one embodiment of the present invention includes adamper assembly 100 and abody assembly 10 which encloses and is coupled to thedamper assembly 100 as shown inFIG. 1 . - Further, referring to
FIG. 2 , thebody assembly 10 includes anupper case 12 which encloses thedamper assembly 100, and acore 20 and anelastic member 30 which are provided inside theupper case 12. - The
core 20 protrudes toward an upper part of thecase 12 to support an engine of a vehicle, and is connected to theelastic member 30. Theelastic member 30 is formed of an elastic material so that vibrations delivered from the engine are reduced, and in this case, the elastic member is formed of a rubber with insulating properties. - Further, the
damper assembly 100 includes anupper orifice 110, alower orifice 120, anexciting unit 130, adriving unit 140, and apartition 160. - As shown in
FIGS. 2 and 3 , theupper orifice 110 is provided on an upper part of thedamper assembly 100 to form a main chamber between thecore 20 and theelastic member 30, and aflow hole 112 is formed on the upper orifice such that a fluid accommodated in the main chamber can flow. - The
exciting unit 130 is provided at a lower part of theupper orifice 110 and an exciter is accommodated therein. Further, thedriving unit 140 is provided at a lower part of theexciting unit 130 to provide a driving force for exciting the exciter. - Further, the
partition 160 is provided at a lower part of thedriving unit 140, and has a subchamber formed between thedriving unit 140 and the partition. Here, thelower orifice 120 provides a flow passage for communication between the main chamber and the subchamber, and therefore a fluid flows between the main chamber and the subchamber while absorbing vibrations from the engine. - Further, in the embodiment, the
exciting unit 130 and thedriving unit 140 are accommodated in thelower orifice 120, and the fluid may flow through an edge of thelower orifice 120. During the procedure, a sealingmember 170 may be provided between theexciting unit 130 and thedriving unit 140 in order to prevent the fluid from entering theexciting unit 130 and thedriving unit 140. - Further, in the embodiment, a
lower case 150 is coupled to a lower part of thepartition 160. Thelower case 150 supports thelower orifice 120 and thepartition 160, and provides a gap so that thepartition 160 may move to a certain degree. -
FIG. 4 is a view illustrating an inner structure of thedamper assembly 100 in the active engine mount according to one embodiment of the present invention in detail, and structures of each component will be described in more detail with reference thereto. - In the embodiment, the
exciting unit 130 includes anexciter 131 and amembrane 132. Theexciter 131 may be excited vertically by thedriving unit 140. Although themembrane 132 fixes theexciter 131, movement of theexciter 131 is not restricted because the membrane is formed of an elastic material. - Further, the
driving unit 140 includes alower housing 141 and aninner housing 142, and amagnet 146 is provided between thelower housing 141 and theinner housing 142. - Further, a
coil 144 wound around abobbin 143 is provided on an outer side of themagnet 146 so that theexciter 131 may be excited by a magnetic field when current is applied to thecoil 144. - As described in the related art, in the case of a conventional active engine mount, there was a problem in that the
coil 144 generates heat of high temperatures due to various causes such as heat generation caused by excitation of anexciter 131, exhaust heat of an engine, and radiant heat of a road. This remarkably weakens durability of an elastic member and decreases driving efficiency caused by air expansion. - To address such problems, in the present invention, a vent hole H is formed on the
damper assembly 100. The vent hole H is an air flow passage which enables communication from a lower part of theexciter 131 to the outside so that air inside thedamper assembly 100 can be discharged to the outside. - In the embodiment, the vent hole H is formed to pass through the
exciting unit 130, thedriving unit 140, thepartition 160, and thelower case 150. That is, the vent hole H is in a shape that entirely enables communication from a direct lower part of theexciter 131 to thelower case 150 in order to prevent air expansion inside a sealed space by excitement of theexciter 131. - Accordingly, in the present invention, when the
exciter 131 is excited, the air inside thedamper assembly 100 is discharged to the outside through the vent hole H while outside air is introduced into the inside, and therefore air is circulated constantly. Thus, internal heat generation and air expansion caused by the internal heat generation may be minimized. - Further, the vent hole H may be formed in various shapes inside the
damper assembly 100, however, the vent hole is formed in the shape of a straight line penetrating each component in the embodiment. - Hereinafter, detailed shapes of each component forming the vent hole H will be described in more detail.
-
FIGS. 5 and 6 are views illustrating a structure of a vent hole H in the active engine mount according to one embodiment of the present invention in detail. - As shown in
FIGS. 5 and 6 , in the embodiment, themagnet 146 includes a first through-hole 146 a in the center thereof, thelower housing 141 includes a second through-hole 141 c which passes through a lower side of the first through-hole, and theinner housing 142 includes a third through-hole 142 a which passes through an upper side of the first through-hole. - Here, a
purification filter 147 is provided in the first through-hole, and thepurification filter 147 serves to filter a foreign substance introduced from the outside to prevent the foreign substance from moving to a side of theexciter 131. However, unlike the embodiment, thepurification filter 147 can be provided at any location of the vent hole H. - In particular, in the embodiment, a vertical length of the
purification filter 147 is formed to be smaller than a vertical length of themagnet 146 so thatsteps purification filter 147 and themagnet 146. Further, thelower housing 141 and theinner housing 142 includeprotrusions steps - That is, the
lower housing 141 and theinner housing 142 are in shapes in which theprotrusions hole 146 a, which strengthens couplings between components and also prevents air flowing through the vent hole H from being introduced between interfaces of the components. - Meanwhile, in the embodiment, recessed
grooves inner housing 142 and thelower housing 141, respectively. The recessedgroove 142 b of theinner housing 142 is provided to insert astopper 145 for fixing thebobbin 143 to theinner housing 142, and the recessedgroove 141 a of thelower housing 141 is provided to insert thepartition 160. For this, an inserting portion which is inserted into the recessedgroove 141 a is formed on thepartition 160. - This not only strengthens couplings between components but also prevents air flowing through the vent hole H from being introduced between interfaces of the components. In addition, in the embodiment, a fixing
member 148 which passes through thepartition 160 to be inserted into the second through-hole of thelower housing 141 is further included to fix thepartition 160. - Further, a fourth through-
hole 145 a in communication with the third through-hole 142 a of theinner housing 142 is formed on thestopper 145, and a fifth through-hole 148 a in communication with the first through-hole 146 a of themagnet 146 is formed on the fixingmember 148. - In addition, in the embodiment, because a sixth through-
hole 150 a is also formed on thelower case 150 which is provided at the bottom of the active engine mount, the present invention according to the above-described structures may discharge air from a low part of theexciter 131 to the outside of thelower case 150 or introduce outside air into the inside. - Therefore, the present invention may circulate the air constantly, which in turn minimizes internal heat generation and air expansion caused by the internal heat generation.
- As described the above, the active engine mount having a vent hole according to the embodiments of the present invention can exhibit the following advantages.
- First, when an exciter is excited, inside air is discharged to the outside through a vent hole while outside air is introduced into the inside so that air circulation constantly occurs. Therefore, it is advantageous in that internal heat generation and air expansion caused by the internal heat generation can be minimized.
- Second, accordingly, it is advantageous in that reductions in durability of inner components such as an elastic member made of a rubber can be minimized, and performance of a product can be maximized.
- Third, it is advantageous in that a vent hole can be easily manufactured, and therefore rise in unit cost can be minimized.
- Effects of the present invention are not limited to the above-described effects and other unmentioned effects may be clearly understood by those skilled in the art from the scope of claims.
- Although the preferred embodiments have been described, 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 inventions. Thus, the present invention is intended to cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (8)
Applications Claiming Priority (3)
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KR1020160043714A KR101773521B1 (en) | 2016-04-08 | 2016-04-08 | Active Engine Mount Having Vent Hole |
KR10-2016-0043714 | 2016-04-08 | ||
KR10-2016-004371 | 2016-04-08 |
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US20170292582A1 US20170292582A1 (en) | 2017-10-12 |
US20180195575A9 true US20180195575A9 (en) | 2018-07-12 |
US10047821B2 US10047821B2 (en) | 2018-08-14 |
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US15/479,863 Active US10047821B2 (en) | 2016-04-08 | 2017-04-05 | Active engine mount having vent hole |
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KR102452074B1 (en) * | 2016-12-06 | 2022-10-06 | 현대자동차주식회사 | Engine mount of vehicle |
US10308102B2 (en) * | 2017-02-07 | 2019-06-04 | Vibracoustic Usa, Inc. | Damped torque roll restrictor |
CN111114273B (en) * | 2018-10-30 | 2021-09-21 | 长城汽车股份有限公司 | Power assembly suspension |
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DE3721866A1 (en) * | 1987-07-02 | 1989-01-12 | Boge Ag | HYDRAULIC DAMPING RUBBER BEARING |
JP3194345B2 (en) * | 1995-03-29 | 2001-07-30 | 東海ゴム工業株式会社 | Fluid-filled mounting device |
JPH09280307A (en) * | 1996-04-10 | 1997-10-28 | Nissan Motor Co Ltd | Active type vibration control device for vehicle |
KR200187775Y1 (en) | 1997-10-23 | 2000-08-01 | 정몽규 | Engine mount for enclosing fluid |
JP4275791B2 (en) * | 1999-02-10 | 2009-06-10 | 山下ゴム株式会社 | Liquid seal mount |
US6422546B1 (en) * | 1999-06-18 | 2002-07-23 | Honda Giken Kogyo Kabushiki Kaisha | Active vibration isolating support device |
WO2003001080A1 (en) * | 2001-06-22 | 2003-01-03 | Yamashita Rubber Kabushiki Kaisha | Liquid ring vibration control device |
DE10206927B4 (en) | 2002-02-19 | 2004-11-18 | Trelleborg Automotive Technical Centre Gmbh | Hydraulically damping bearing |
JP2004232708A (en) * | 2003-01-29 | 2004-08-19 | Toyo Tire & Rubber Co Ltd | Liquid sealed vibration control device |
JP4016869B2 (en) * | 2003-03-31 | 2007-12-05 | 東海ゴム工業株式会社 | Fluid filled engine mount |
JP3811469B2 (en) * | 2003-06-13 | 2006-08-23 | 本田技研工業株式会社 | Actuator drive controller for active anti-vibration support device |
US7581720B2 (en) * | 2005-07-11 | 2009-09-01 | Honda Motor Co., Ltd. | Vibration isolation system and method for engine, and control system and method for active vibration isolation support system |
JP5307618B2 (en) | 2009-04-27 | 2013-10-02 | 株式会社ブリヂストン | Vibration isolator |
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US20170292582A1 (en) | 2017-10-12 |
KR101773521B1 (en) | 2017-08-31 |
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