KR101812744B1 - Module Type Active Engine Mount equipped with heat structures - Google Patents

Abstract

The present invention relates to a module type active engine mount with a heat radiating structure, providing a stable assembly structure. The module type active engine mount comprises a damper assembly (200) including a vibration body (231) and controls the pressure of a main liquid chamber by vibrating the vibration body (231). The damper assembly (200) has a structure of stacking a vibration unit (230), a driving unit (240), and a lower case (250). The vibration unit (230) includes: a first membrane (232a) fitting the outer circumference between the upper and lower orifices (210, 220); an upper housing coupled to the lower orifice (220); the vibration body (231) fitted in a groove formed on the inner circumference of the first membrane (232a); a partition (260, diaphragm) fitting a protrusion part formed on the outer circumference in a groove formed on a bottom of the outer circumference of the lower orifice (220) and fitting a protrusion part formed on the inner circumference in a groove formed on a bottom of the vibration body (231); and a plunger (270) fitting a protrusion part formed on the inner circumference of the partition (260, diaphragm) in a groove formed on the top.

Description

[0001] The present invention relates to a module type active engine mount having a heat dissipating structure,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an active engine mount, and more particularly, to an active engine mount having a connecting portion and a driving unit for easily taking out a lead wire connected to a coil, To a modular active engine mount having a heat dissipating structure.

Generally, the engine mount of a vehicle plays a role of supporting the engine, and at the same time, it is capable of attenuating the vibration within a short time so as to prevent the vibration transmitted from the engine from being transmitted to the passenger, .

In recent years, active engine mounts have been actively developed to vibrate an exciter through electrical control so as to more actively control the vibration of the engine mount depending on the running state of the vehicle or the operation state of the engine.

The active engine mount is configured to apply power according to a predetermined algorithm based on information on an engine and an operating state of the vehicle, an acceleration signal, and the like, and can change the characteristics of the engine mount according to the running state or the operation state of the engine Therefore, it has an advantage that the ride comfort and driving performance of the vehicle can be further improved.

Such an active engine mount often includes a magnet and a coil for the excitation of the exciter, and thus a conductor for supplying current to the coil is connected.

However, in the conventional active engine mount, it is very troublesome that the lead wire connected to the coil is taken out to the outside of the outer case in the process of assembling various parts of the product, and when the skilled engineer is not skilled, . Accordingly, there has been a problem that the yield of the product is greatly lowered.

In addition, the conventional active engine mount does not effectively dissipate the heat generated from the coil, thereby decreasing durability. The drive unit including the magnet and the coil for the excitation of the exciter is located inside the partition plate, There is a limit in increasing the volume of the drive unit and there is a problem that the drive force of the drive unit can not be increased.

Therefore, a method for solving such problems is required.

Korea Public Utility Model No. 20-1999-0016017

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide an active engine mount that can easily take out lead wires connected to coils during assembly of a product, I have.

Further, the present invention has the purpose of limiting the position of the drive unit, facilitating the heat radiation of the coil, and improving the driving force of the drive unit.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

A modular active engine mount having a heat dissipating structure includes a damper assembly including a vibrator, and the damper assembly controls the pressure of the droplet chamber according to the vibrator having the vibrator, A drive unit and a lower case are stacked;

The exciting unit includes a first membrane having an outer periphery fitted between an upper orifice and a lower orifice,

A protruding portion formed at the outer periphery is fitted into a groove formed at the outer peripheral lower end of the lower orifice, and the protruding portion formed at the outer peripheral edge of the protruding portion, (Diaphragm) fitted in a groove formed at the lower end of the impeller and a plunger in which a protrusion formed on the inner circumference of the partition plate (diaphragm) is fitted to the groove formed at the upper end thereof,

The driving unit includes a cylindrical cup-shaped lower housing having an open upper portion and a protrusion protruding from the center of the lower housing in a groove formed in a lower surface of the center portion. The protrusion formed on the lower surface of the inner housing A stopper fitted into a groove formed on a central upper surface of the inner housing, and a coil coupled to a lower end of the plunger, wherein the coil is disposed in a space formed between the inner and outer housings and the lower housing, And a bobbin inserted at a predetermined interval to the inside and outside,

A first connection part 134 formed in the upper housing 233 and a second connection part 121 formed in the lower case 250,

A first through hole through which the lead wire passes is formed in the first connection portion and a second through hole is formed in the second connection portion below the first through hole to downward the lead wire; The first connecting portion and the second connecting portion are formed so that the opposing faces of the first connecting portion and the second connecting portion are inclined so that the first connecting portion can be seated on the second connecting portion and the lead wire is inserted into the first passing hole, Wherein the fixing member includes a fixing hole inserted in the first passage hole and having a shape corresponding to an end surface of the lead wire and is insertable into the second passage hole, And a guide member for fixing the guide member in the vertical direction.

In addition, the outer circumferential surface of the lower case is formed with reinforcing ribs having a dual function of widening the contact area with the outside air and expanding the heat exchange area.

Further, the upper housing is provided with a radiating hole 233a.

Again. The protruding portion of the upper lower ring 233 is fitted to the groove formed in the outer periphery of the excitation unit 230 and the second membrane 232b is inserted into the groove formed in the inner periphery of the excitation unit 230, ). ≪ / RTI >

The modular active engine mount including the coil wire connecting portion of the present invention for solving the above problems has the following effects.

First, since the lead wire connected to the coil can be easily taken out to the outside during the assembly process of each component, it is possible to greatly reduce the work difficulty and shorten the manufacturing time of the product.

Secondly, the yield can be greatly increased, and it is possible to assemble the product easily even for the unskilled person.

Third, there is an advantage that a stable connection structure can be formed by the connection structure of the first connection part and the second connection part, and damage of the wire can be prevented.

Fourthly, the damper assembly in which the upper orifice, the engaging unit, the driving unit, and the lower orifice are combined is applicable to a body assembly having a structure of a conventional hydro-mount, thereby making it possible to easily change the structure of the active engine mount .

Fifth, since the position of the drive unit is provided outside the partition plate and the position is limited, the drive unit can be freed from being in contact with peripheral components and the volume can be increased, .

Sixth, there is an advantage that durability of the coil can be improved by making the coil formed in the driving unit come in contact with the outside air, thereby achieving efficient heat dissipation.

Seventh, the reinforcing ribs formed on the outer periphery of the lower case have the advantage of double effect of enhancing the effect of reinforcing and enlarging the heat exchange area to enhance the heat radiation effect.

Eighth, by limiting the position of the drive unit to the outside of the partition plate, there is an advantage that the drive unit is not located inside the liquid chamber, and the drive unit is released from the sealing problem.

Ninth, the construction of the second membrane is adopted, which has the advantage that the lateral vibration of the active engine mount can be more effectively attenuated.

In the tenth, since the position of the drive unit is provided outside the partition plate and the position is limited, the width and the width of the drive unit can be reduced and the width of the vehicle body can be reduced by a certain amount have.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of an active engine mount according to an embodiment of the present invention;
2 illustrates an internal structure of an active engine mount according to an embodiment of the present invention;
FIG. 3 is a view illustrating the components of a damper assembly in an active engine mount according to an embodiment of the present invention; FIG.
FIGS. 4 and 5 are views showing an appearance of a damper assembly in an active engine mount according to an embodiment of the present invention; FIG.
6 is a detailed view of the internal structure of a damper assembly in an active engine mount according to an embodiment of the present invention; And
FIGS. 7 and 8 are views showing an excitation unit and a drive unit in an active engine mount according to an embodiment of the present invention;
9 is a view illustrating an upper housing of an active engine mount according to an embodiment of the present invention;
FIG. 10 and FIG. 11 are views showing a state of a fixing member in an active engine mount according to an embodiment of the present invention;
12 and 13 are views of a lower orifice in an active engine mount according to an embodiment of the present invention;
FIG. 14 is a view illustrating a state in which an upper housing and a lower orifice are coupled to each other in an active engine mount according to an embodiment of the present invention; FIG.
15 is a view showing a body assembly of an active engine mount according to an embodiment of the present invention;
16 is a detailed view of the shape of an opening of a cover portion of an active engine mount according to an embodiment of the present invention; And
17 is a view showing a state where a body assembly and a damper assembly are combined in an active engine mount according to an embodiment of the present invention.
18 (a) is a perspective view of a damper assembly according to another embodiment of the present invention, and FIG. 18 (b) is an exploded view of a damper assembly and a top view of an upper housing
19 is a cross-sectional view of a damper assembly according to another embodiment of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and further description thereof will be omitted.

1, an active engine mount 1 according to an embodiment of the present invention includes a damper assembly 100 and a body assembly 10 coupled to the damper assembly 100 to surround the damper assembly 100 .

2, the body assembly 10 includes an upper case 12 surrounding the damper assembly 100 and a core 20 and an elastic body 30 provided in the upper case 12 .

The core 20 protrudes from the upper portion of the case 12 to support the engine of the vehicle, and is connected to the elastic body 30. The elastic body 30 is made of an elastic material to reduce the vibration transmitted from the engine. In the present embodiment, the elastic body 30 is formed of rubber having insulation properties.

The damper assembly 100 includes an upper orifice 110, a lower orifice 120, a vibrating unit 130, a driving unit 140, and a partition plate 160.

2 and 3, the upper orifice 110 is provided at an upper portion of the damper assembly 100 to form a main liquid chamber between the core 20 and the elastic body 30, A flow hole 112 is formed so that the accommodated fluid can flow.

The vibrating unit 130 is provided below the upper orifice 110, and a vibrating body is accommodated therein. The driving unit 140 is provided at a lower portion of the excitation unit 130 to provide driving force for exciting the excitation unit.

The partition plate 160 is provided under the driving unit 140 and forms an auxiliary liquid chamber with the driving unit 140. At this time, the lower orifice 120 provides a flow path for communicating the main liquid chamber and the auxiliary liquid chamber, so that fluid flows between the main liquid chamber and the auxiliary liquid chamber and can absorb vibration of the engine.

Also, in the present embodiment, the vibrating unit 130 and the driving unit 140 are accommodated in the lower orifice 120, and the fluid can flow around the lower orifice 120. A sealing member 170 may be provided between the vibrating unit 130 and the driving unit 140 to prevent the vibrating unit 130 and the driving unit 140 from flowing into the vibrating unit 130 and the driving unit 140. [

In this embodiment, the lower case 150 is coupled to the lower portion of the partition plate 160. The lower case 150 supports the lower orifice 120 and the partition plate 160 and provides a clearance through which the partition plate 160 can be slightly flowed.

The state in which the upper orifice 110, the excitation unit 130, the driving unit 140, and the lower orifice 120 are combined is shown in FIGS. 4 and 5.

As shown in the drawing, the excitation unit 130 is completely inserted into the lower orifice 120, and the upper portion of the driving unit 140 is drawn into the lower orifice 120. And the upper orifice is fully engaged with the lower orifice 120 to shield the upper opening of the lower orifice 120.

In addition, the lower orifice 120 may be seated on the lower case 150 in such a combined state, thereby also shielding the lower opening of the lower orifice 120.

The upper orifice 110, the vibrating unit 130, the driving unit 140, and the lower orifice 120 are coupled to each other through a damper assembly (not shown), except for the lower case 150 and the partition plate 160. [ Can be used as a single module.

That is, the damper assembly in which the upper orifice 110, the excitation unit 130, the driving unit 140, and the lower orifice 120 are combined is applied to a body assembly having a structure of a conventional hydro mount The structure change to the active engine mount can be easily performed.

Specifically, in the conventional hydro mount, when the modular damper assembly is installed inside the lower case after the body assembly is left as it is, the hydro mount can be changed to the active engine mount.

As described above, the present invention can also be applied to a conventional hydro-mount to change the structure of the active engine mount.

FIG. 6 is a detailed view showing the internal structure of the damper assembly 100 in the active engine mount according to an embodiment of the present invention, and the structure of each component will be described in more detail.

In the present embodiment, the excitation unit 130 includes a vibrator 131 and a membrane 132. The vibrating body 131 may be excited up and down by a driving unit 140. The membrane 132 may be formed of an elastic material to fix the vibrating body 131, Lt; / RTI >

The driving unit 140 includes a lower housing 141 and an inner housing 142 and a magnet 146 between the lower housing 141 and the inner housing 142.

A coil 144 wound on a bobbin 143 fixed to the inner housing 142 by a stopping member 145 is provided on the outer side of the magnet 146 to supply a current to the coil 144 The exciter 131 can be excited by a magnetic field.

In the present embodiment, the excitation unit 130 is formed to surround the excitation member 131 and includes a first connection part 134 through which a conductor C connected to the coil 144 passes, The lower orifice 120 includes a second connection portion 121 connected to the first connection portion 134 and extending the wire C to the outside. That is, the conductor C can be taken out from the coil 144 through the first connection part of the upper housing 133 and the second connection part 121 of the lower orifice 120.

Hereinafter, the connection structure between the upper housing 133 and the lower orifice 120 and the lead-out route of the lead wire C will be described in detail.

7 and 8 are views showing an excitation unit 130 and a drive unit 140 in an active engine mount according to an embodiment of the present invention, Fig.

As shown in FIG. 7, the coil 144 is wound around the bobbin 143, and the wire C is connected to the coil 144 and extends to one side. The upper housing 133 is provided to cover the bobbin 143 and the coil 144, and a first connection part 134 is formed on one side.

As shown in FIG. 8, the conductor C extends outwardly of the upper housing 133 through the first connection part 134. The first connection part 134 of the upper housing 133 is formed with a first through hole 135 through which a conductor C passes as shown in FIG. Are formed in a shape protruding outward as a whole. In the present embodiment, the first connection portion 134 is formed in a protruded shape with respect to the lower protrusion 134b, so that the end surface of the first connection portion 134 is inclined .

At this time, the first connection part 134 may be provided with a fixing member 180. 10 and 11, the fixing member 180 is formed to be insertable into the first through-hole 135 to fix the lead wire C in the left-right direction. As shown in FIGS. 10 and 11, 133 inserted into the first through hole 135 of the first through hole 135.

The fixing member 180 includes a lower protrusion 182b extending outwardly of the insertion portion 181 and an upper protrusion 182b protruding longer than the lower protrusion 182a, 182a. Accordingly, the end surface of the fixing member 180 is formed to be inclined as the first connection part 134.

At this time, an auxiliary passage hole 183 through which the conductor C passes is formed between the upper projection 182a and the lower projection 182a, and the auxiliary passage hole 183 A fixing hole 184 communicating with the fixing hole 184 is formed. The fixing hole 184 has a shape corresponding to the cross section of the conductive line C so that the conductive line C can be stably fixed to prevent the conductive line C from flowing unnecessarily.

Further, the fixing member 180 may be formed of a material having elasticity such as rubber or the like, and thus may also perform a role of sealing the first through-hole 135.

The inclination of the ends of the first connection part 134 and the fixing member 180 facilitates the coupling of the lower orifice 120 with the second connection part to be described later, So that it can be safely taken out to the outside. Hereinafter, the second connection portion of the lower orifice 120 will be described and described together.

12 and 13 are views showing a state of a lower orifice 120 in an active engine mount according to an embodiment of the present invention.

12 and 13, the lower orifice 120 includes a second connection portion 121 connected to the first connection portion 134 to extend the wire C to the outside.

The second connection part 121 may have a surface 121a facing the first connection part 134 so that the first connection part 134 can be easily mounted on the second connection part 121 And a second through-hole 122 through which the lead wire C passes is formed inside.

The second through hole 122 is formed below the first through hole 135 when the lower orifice 120 and the upper housing 133 are coupled to each other so that the conductive line C is downward .

In other words, in the present embodiment, the conductor extending in the horizontal direction from the coil 144 passes through the first through-hole 135, then enters the second through-hole 122 and its extending direction is changed to be downward.

The reason for doing this is to prevent the conductor C from being damaged during the process of coupling the upper case 12 (see FIG. 15) to be described later, 12) of the conductor (C). This will be described later.

14, the second connection part 121 is formed in a shape corresponding to the first connection part 134 of the upper housing 133, and the first connection part 134 is connected to the second connection part 134 121, so that the first through hole 135 and the second through hole 122 can be easily communicated with each other.

As described above, according to the present invention, it is possible to simplify the troublesome process for taking out the conductor C to the outside and to minimize the damage of the conductor C.

12, the lower orifice 120 is provided with a pair of stoppers 123 spaced from each other at both sides of the second connection part 121 and restricting lateral movement of the first connection part 134, . ≪ / RTI > That is, since the first connection part 134 can be stably inserted between the pair of stopper parts 123, the first connection part 134 can be prevented from being displaced from the second connection part 121 And the coupling position can be easily identified.

Also, a guide member 190 (see FIG. 6) for fixing the lead wire C in the vertical direction may be provided on the inside of the second through hole 122. The guide member 190 prevents the conductor C from flowing in the second through hole 122 and guides the extension direction of the conductor C in the vertical direction.

In this embodiment, the guide member 190 includes a protrusion 192 (see FIG. 6). The protrusion 192 guides the coupling position of the upper case 12 in the process of coupling the upper case 12 (see FIG. 15) and the damper assembly 100, which will be described later.

As described above, according to the present invention, the first connection part 134 is formed in the upper housing 133 and the second connection part 121 is formed in the lower orifice 120, so that the conductor C extending from the coil 144, .

When the lower orifice 120 is coupled with the upper housing 133, the second through-hole 122 of the second connection part 121 is connected to the first connection part 134 of the first connection part 134, Is formed below the through hole 135 and is formed to downwardly connect the lead wire C to facilitate the coupling process with the upper case 12.

15 is a view showing a state of the upper case 12 constituting the body assembly 10. As shown in FIG. The upper case 12 includes a core 20 (see FIG. 2) and an elastic body 30, and includes a cover 14 coupled to surround the outer side of the damper assembly 100.

The cover portion 14 includes an opening hole 15 through which a conductor C connected to the coil 144 passes and which is opened at the bottom. That is, the opening hole 15 is formed in the lower end of the cover portion 14 so as to take out a conductor C passing through the second through hole 122 of the lower orifice 120 described above .

16, when the cover portion 14 and the damper assembly 100 are coupled to each other, the height d1 of the upper portion of the opening 15 is smaller than the height d1 of the upper portion of the first passage hole 135, (D2) of the lower end of the substrate. That is, the upper end of the opening hole 15 is formed not to be higher than the lower end of the first through hole 135. This is because, if the height of the opening hole 15 is too high, the piercing area may expand and the strength of the cover part 14 may be lowered.

Therefore, in the present embodiment, the opening 15 is formed to have a minimum area so as to secure the strength of the cover portion 14. This is because the extending direction of the conductor C is the second through hole 122). ≪ / RTI >

17, the damper assembly 100 and the body assembly 10 are prevented from being interfered with each other by the conductor C in the process of coupling the damper assembly 100 and the body assembly 10, The damper assembly 100 and the body assembly 10 can be easily coupled to each other.

The damper assembly 100 is assembled with the body assembly 10 by inserting the wire C into the opening hole 15a of the cover assembly 14, 15). Therefore, the operator has to carry out the process of taking out the conductor C through the opening hole 15, which has a problem that it takes a long time to work.

In contrast, according to the present invention, since the lower portion of the opening hole 15 is opened, the body assembly 10 can be easily lowered from the upper portion of the damper assembly 100 regardless of the presence of the conductor C, It is possible.

In the present embodiment, in a state where the cover unit 14 is coupled to the damper assembly 100, at least a part of the area of the opening hole 15 is overlapped with at least a part of the area of the second hole 122 . This is because the conductor C passing through the second through hole 122 can be taken out directly through the opening hole 15. [

6, when the cover portion 14 of the upper case 12 is coupled with the damper assembly 100, the guide member 190 (see FIG. 6) provided in the lower orifice 120 of the damper assembly 100 (See Fig. 6) formed in the upper case 12 can guide the engagement position of the upper case 12. [

The protrusion 192 protrudes outward from the guide member 190 so that when the cover portion 14 is coupled to the damper assembly 100, the opening portion 15 and the protrusion 192 When the position is not aligned, the cover portion 14 is caught by the projecting portion 192 and can not proceed the engagement.

When the cover part 14 is coupled to the damper assembly 100, the direction of the opening 15 is aligned with the protrusion 192. In this case, And the protrusion 192 is inserted through the opened lower portion to perform the coupling.

18 (a) is a perspective view of a damper assembly according to another embodiment of the present invention, FIG. 18 (b) is an exploded view of a damper assembly and a top view of an upper housing, and FIG. 19 is a sectional view of a damper assembly.

In this embodiment, in the structure of the above-described active engine mount, the first connecting portion 134 is formed in the upper housing 233, the second connecting portion 121 is formed in the lower case 250, Only the structure of the assembly 200 is different, and the remaining components are the same as those described above. Therefore, only the structure of the damper assembly or the like, which is a feature of the present embodiment, will be described, and the description of the remaining components will be omitted.

18, the damper assembly 200 of the present embodiment includes an upper orifice 210, a lower orifice 220, an upper housing 233, a lower housing 241, and a lower case 250 . Reference numeral 211 denotes a through hole.

Since the reinforcement rib 251 is formed on the outer circumferential surface of the lower case 250, the reinforcement rib 251 has a dual function of widening the heat exchanging area by widening the contact area with the outside air, So that the cooling of the lower case 250 in which the temperature is increased can be rapidly promoted.

Referring to the sectional view of the damper assembly shown in FIG. 19, the damper assembly 200 according to the present embodiment is roughly divided into a vibrating unit 230 and a drive unit 240. One of the main features of the present embodiment is a drive unit 240 are positioned on the lower side of the partition plate (diaphragm).

The upper orifice 210 is fitted to the step formed at the upper end of the lower orifice 220 and the lower end of the lower orifice 220 is inserted into the groove formed at the lower end of the lower orifice 220, (260. diaphragm) is fitted and the lower orifice (220) is combined with the upper housing (233) to have a generally cylindrical laminated structure.

A heat dissipation hole 239 is formed in the outer periphery of the upper housing 233 so as to communicate with the outside air and the heat generated in the coil 244 of the drive unit 240, .

The upper orifice 210 is provided at its inner center with a vibrating body 231 that vibrates up and down in association with a driving unit 240,

Specifically, the outer membrane of the first membrane 232a is fitted between the upper orifice 210 and the lower orifice 220, and the outer membrane of the first membrane 232a is connected to the inner periphery of the lower membrane. And the vibrating body 231 is fitted into the groove formed in the periphery of the first membrane 232a.

The exciter body 231 has a through hole formed at the center thereof and has a structure bent downward from the center, and a coupling groove is formed in the downwardly bent portion of the exciter body 231. The protrusion portion of the below described partition plate (diaphragm) Respectively.

The diaphragm 260 has a hollow corrugated disk-shaped structure made of an elastic material. The outer periphery of the partition plate 260 (diaphragm) is fitted into a groove formed in the outer peripheral lower end of the lower orifice 220 And a protrusion is also formed on the inner circumference of the body 231 to be fitted into a groove formed at the lower end of the body 231. [

The plunger 270 is configured to transmit the vibration to the unit 230 having the vibration of the drive unit 240. The plunger 270 has a groove formed on the outer periphery of the upper end of the plunger 270, And the protruding portion is engaged.

The plunger 270 is coupled to the second membrane 232b. Specifically, the protrusion formed on the outer peripheral bottom of the plunger 270 is fitted into a groove formed in the inner membrane of the second membrane 232b. The second membrane 232b A protruding portion protruding to the inside of the upper lower jig 233 is fitted and fitted.

A bolt 271 is fastened to the upper end of the plunger 270 so that the head of the bolt 271 presses the central portion of the body 231 to press the body 231 and the partition plate 260. Diaphragm) and the plunger 270 to each other.

Needless to say, the bolts and screw holes can be replaced with known fastening means.

The lower end of the plunger 270 is engaged with the bobbin 243.

It is needless to say that the second membrane 232b is formed of an elastic material.

The vibration generated in the drive unit 240 is transmitted to the plunger 270 and the vibrator 231 connected to the plunger 270 is vibrated so that the vibrations transmitted from the vehicle body Actively attenuates.

The drive unit 240 is inserted into the lower case 250 and a reinforcing rib 251 is formed on the outer circumference of the lower case 250. (See FIG. 18)

The drive unit 240 has a structure in which the lower housing 241, the magnet 246, the inner housing 242, and the bobbin 243 are laminated from below. Specifically,

The lower housing 241 is a cylindrical cup-shaped structure having an open upper portion. The magnet 246 and the inner housing 242 are stacked and combined with the lower housing 241 in a circumferential direction .

The magnet 246 has grooves formed on the upper and lower surfaces of the central portion, protrusions protruding from the center of the lower housing 241 are fitted in the grooves formed in the lower surface, and the inner housing 242 is inserted into the grooves formed on the upper surface. The protrusions formed on the lower surface of the protrusion are fitted and stacked.

The inner housing 242 is formed with a groove on the central upper surface thereof, and a stopper 245 is fitted thereinto.

The bobbin 243 is coupled to the lower end of the plunger 270 and the coil 244 formed on the outer periphery of the bobbin 243 is connected to the stacked magnet 246 and between the inner housing 242 and the lower housing 241 Are inserted into the space formed at the inner side and the outer side at regular intervals.

When a current is applied to the coil 244 of the drive unit 240, the bobbin 243 vibrates.

As described above, in this embodiment, since the installation position of the drive unit 240 is limited to the outside of the partition plate (diaphragm) 260, the following effects are produced.

That is, in order to raise the driving force of the driving unit 240, it is essential to increase the size or volume of the driving unit. When the conventional driving unit is inside the partition plate 260 (diaphragm), it is located in the inner space of the upper and lower orifices And the volume of the drive unit can not be increased due to the contact relation between the peripheral parts. By limiting the position of the drive unit 240 to the outside of the partition plate (diaphragm) as in the present embodiment, It is possible to increase the volume of the drive unit 240 and to increase the driving force.

In contrast, when the conventional drive unit is inside the partition plate (diaphragm), the drive unit is blocked from the outside air and the heat generated in the coil 244 can not be efficiently radiated, The coil 244 is in contact with the outside air by the air discharge hole 239 formed in the upper housing 233, The heat generated in the coil 244 can be effectively released and cooled, thereby improving the durability of the coil.

Since the reinforcing ribs 251 formed on the outer periphery of the lower case 250 adopted in the present embodiment have a dual function of widening the heat exchanging area by widening the contact area with the outside air in addition to the effect of reinforcement, 244 to rapidly cool down the lower case 250 in which the temperature is increased.

Further, when the conventional driving unit is inside the partition plate (diaphragm), the pressure of the main liquid chamber and the auxiliary liquid chamber is increased by the vibration of the driving unit, so that the fluid that has been pressurized in the liquid chamber flows into the driving unit The driving unit 240 is installed on the outside of the driving plate 260. Diaphragm in this embodiment is required to have a special sealing structure that can be held firmly and hermetically to prevent leakage to the outside, Since the structure for pressing the fluid inside is not provided, the driving unit 240 is free from the sealing problem.

In addition, in this embodiment, the configuration of the second membrane 232b is adopted, and thus the vibrations in the lateral direction of the active engine mount can be attenuated.

In addition, in the interior of the vehicle, various components are interlocked with each other. However, if the width of the vehicle body of the vehicle is wide in the road environment, there is a high possibility that an accident occurs with another vehicle traveling. It is necessary to reduce the width of the vehicle body to match the road environment or the parking environment.

In this embodiment, since the position of the drive unit 240 is limited to the outside of the partition plate 260 (diaphragm), a function of designing the diameter (width) of the active engine mount can be reduced. That is, as a result, the diameter of the active engine mount occupied in the vehicle interior space becomes small. Thus, the function of the active engine mount can be maintained as it is in the prior art while reducing the width of the vehicle body.

It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is obvious to them. Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

1: Active engine mount 10: Body assembly
12: upper case 14: cover part
15: aperture hole 20: core
30: elastic body 100,200: damper assembly
110, 210: upper orifice 120, 220: lower orifice
121: second connecting portion 122: second through hole
130, 230: excitation unit 131, 231:
132: membrane 133, 233: upper housing
134: first connection part 135: first through hole
140, 240: drive unit 141, 241: lower housing
142, 242: inner housing 143, 243: bobbin
144, 244: Coil 145: Stopping member
146, 246: Magnet 150, 250: Lower case
160,260: partition plate 180: fixing member
190: guide member 270: plunger
232a: first membrane 232b: second membrane
270: plunger

Claims (4)

And a damper assembly (200) including a vibrating body (231), wherein the pressure of the main liquid chamber is controlled by having the vibrating body (231)
The damper assembly 200 has a structure in which a vibrating unit 230, a drive unit 240 and a lower case 250 are stacked;
The excitation unit 230
A first membrane 232a having an outer periphery fitted between the upper orifice 210 and the lower orifice 220,
An upper housing 233 coupled to the lower orifice 220,
A vibrating body 231 fitted into a groove formed in the periphery of the first membrane 232a,
The protrusion formed on the outer periphery is fitted into a groove formed on the outer peripheral bottom of the lower orifice 220 and the protrusion formed on the inner periphery is fitted into the groove formed in the lower end of the vibrating body 231. The partition plate and,
And a plunger (270) fitted in and engaged with a protrusion formed on the inner periphery of the partition plate (260. diaphragm) in the groove formed at the upper end,
The drive unit 240
A lower cup-shaped lower housing 241 having an open top,
A magnet 246 having a protrusion protruding from the center of the lower housing 241 and fitted into a groove formed on a lower surface of the center portion and having a protrusion formed on a lower surface of the inner housing 242 fitted into a groove formed on the upper surface,
A stopper 245 fitted into a groove formed in the central upper surface of the inner housing 242,
The coil 244 formed at the outer periphery of the plunger 270 is spaced at a certain interval inward and outward from the stacked magnet 246 and the space formed between the inner housing 242 and the lower housing 241 And a bobbin 243 inserted into the bobbin 243,
A first connection part 134 formed in the upper housing 233 and a second connection part 121 formed in the lower case 250,
The first connection part 134 is formed with a first through hole 135 through which a conductor C passes,
A second through hole 122 is formed in the second connection part 121 below the first through hole 135 to downward the conductive line C;
The first connection part 134 and the second connection part 121 are formed to have an opposite surface facing each other so that the first connection part 134 can be seated on the second connection part 121,
Further comprising a fixing member (180) formed to be insertable into the first through hole (135) and fixing the lead wire (C) in the lateral direction,
The fixing member 180 includes a fixing hole 184 inserted into the first through hole 135 and having a shape corresponding to the cross section of the lead C,
Further comprising a guide member (190) formed to be insertable into the second through hole (122) and fixing the lead wire (C) in a vertical direction.
The method according to claim 1,
Wherein a reinforcing rib (251) having a double function of expanding a contact area with outside air and widening a heat exchange area is formed on the outer circumferential surface of the lower case (250) Active engine mount.
The method according to claim 1,
And a heat dissipation hole (239) is formed in the upper housing (233).
The method according to claim 1,
The excitation unit (230)
And a second membrane 232b in which a protrusion of the upper lowering ring 233 is fitted to the groove formed in the outer circumference and a protrusion formed on the outer circumference of the plunger 270 is fitted to the groove formed in the inner circumference of the groove, A modular active engine mount having a heat dissipating structure.

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