KR20110034865A - Pump unit for electronic control brake system - Google Patents

Pump unit for electronic control brake system Download PDF

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Publication number
KR20110034865A
KR20110034865A KR1020090092329A KR20090092329A KR20110034865A KR 20110034865 A KR20110034865 A KR 20110034865A KR 1020090092329 A KR1020090092329 A KR 1020090092329A KR 20090092329 A KR20090092329 A KR 20090092329A KR 20110034865 A KR20110034865 A KR 20110034865A
Authority
KR
South Korea
Prior art keywords
pump
plane
degrees
disposed
brake system
Prior art date
Application number
KR1020090092329A
Other languages
Korean (ko)
Inventor
송민근
Original Assignee
주식회사 만도
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 주식회사 만도 filed Critical 주식회사 만도
Priority to KR1020090092329A priority Critical patent/KR20110034865A/en
Priority to DE102010046285.3A priority patent/DE102010046285B4/en
Priority to US12/893,458 priority patent/US20110074208A1/en
Priority to CN2010105828123A priority patent/CN102039888B/en
Publication of KR20110034865A publication Critical patent/KR20110034865A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/4018—Pump units characterised by their drive mechanisms
    • B60T8/4022—Pump units driven by an individual electric motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/4031—Pump units characterised by their construction or mounting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/4068—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system the additional fluid circuit comprising means for attenuating pressure pulsations

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)

Abstract

The present invention is to provide a pump unit for an electronically controlled brake system, the pump unit includes a first pump to a third pump disposed on the first plane, the first, second and third pumps are respectively 60 degrees, 60 In addition, it has an arrangement angle of 240 degrees, and includes a fourth pump to sixth pump disposed in a second plane spaced in parallel with the first plane, wherein the fourth, fifth, sixth pump is 204 degrees, 60 degrees 60 degrees By providing the angle, it is possible to reduce the hydraulic pulsation generated during the operation of the pump and to form a rapid hydraulic pressure.

Description

Pump unit for electronically controlled brake system {PUMP UNIT FOR ELECTRONIC CONTROL BRAKE SYSTEM}

The present invention relates to a pump unit for an electronically controlled brake system that can improve the arrangement of the pump to reduce the hydraulic pulsation generated during the operation of the pump and at the same time form a rapid hydraulic pressure.

In general, the electronically controlled brake system effectively prevents the slip of the vehicle and obtains a strong and stable braking force. The electronically controlled brake system uses an anti-lock brake system (ABS: Anti-Lock Brake) to prevent the wheel from slipping during braking. System), the brake traction control system (BTCS) to prevent slippage of the driving wheel during sudden start or acceleration of the vehicle, and the anti-lock brake system and traction control in combination to control the brake hydraulic pressure to drive the vehicle. A vehicle dynamic control system (VDC) has been developed to keep the vehicle stable.

The electronically controlled brake system includes a plurality of solenoid valves for controlling the braking hydraulic pressure delivered to the hydraulic brake side mounted on the wheel, a low pressure accumulator and a high pressure accumulator for temporarily storing oil discharged from the hydraulic brake, and a low pressure accumulator oil. Motors and pumps for forced pumping, solenoid valves and ECUs for controlling the operation of the motor are included, and these components are compactly installed in a modulator block made of aluminum.

Thus, the system is configured to perform the electronic control of the wheel while the oil of the low pressure accumulator is pressurized by the operation of the pump to be pumped to the high pressure accumulator, and the pressurized oil is transferred to the hydraulic brake or master cylinder assembly side.

However, the conventional electronically controlled brake system consists of a dual pump type in which two pumps are combined in one motor. In other words, as the rotational axis of the motor rotates once, each pump performs one suction stroke and one discharge stroke to supply hydraulic oil to each hydraulic circuit. Therefore, the width of the hydraulic pulsation on the master cylinder side during pump discharge stroke is large, There was a problem that the pressure formation of the hydraulic brake is not made quickly.

One aspect of the present invention provides an electronically controlled brake system capable of forming a rapid hydraulic pressure at the same time to reduce the hydraulic pulsation generated during the operation of the pump by improving the pump structure.

To this end, the electronically controlled brake system pump unit according to an embodiment of the present invention includes first to sixth pumps installed in the first and second hydraulic circuits connecting the master cylinder assembly and the plurality of brake cylinders to form a closed circuit. A pump unit for an electronically controlled brake system having a pump unit having a pump and a shaft of a motor unit for driving the pump unit, wherein the pump unit crosses perpendicularly to a third plane including a shaft of rotation of the shaft. And a first pump to a third pump disposed in one plane, wherein the first pump is disposed around an axis where the first plane and the third plane intersect, and the second pump and the third pump 60 degrees and 120 degrees are spaced apart in the counterclockwise direction with respect to the first pump, respectively, and are disposed on a second plane provided in parallel with the first plane in the rotation axis direction. And the fourth to sixth pumps, wherein the fourth pump is disposed to face the first pump about an axis where the second plane and the third plane cross each other, and the fifth pump and the fifth pump. The six pumps are spaced apart from each other by 60 degrees and 120 degrees in a clockwise direction with respect to the fourth pump.

The shaft may include a first eccentric portion corresponding to the first plane and a second eccentric portion corresponding to the second plane.

In addition, the first eccentric portion and the second eccentric portion is characterized in that the eccentric phase difference of 60 degrees.

The first pump, the third pump and the sixth pump are connected to the first hydraulic circuit, and the remaining three pumps are connected to the second hydraulic circuit.

As described above, the electronically controlled brake system according to an embodiment of the present invention ensures fast response performance when driving the motor-pump, and is comfortable by increasing durability and reducing pressure pulsation by reducing the load and the number of operations of each element. There is an effect of reducing the feeling of lung and operating noise.

Hereinafter, a preferred embodiment according to the spirit of the electronically controlled brake system of the present invention as described above with reference to the accompanying drawings.

1 is a hydraulic system diagram of an electronically controlled brake system according to an embodiment of the present invention.

As shown in FIG. 1, an electronically controlled brake system according to an embodiment of the present invention includes a master cylinder assembly 10 for providing a braking force, a plurality of brake cylinders 20 for braking, and a master cylinder. A first hydraulic circuit A and a second hydraulic circuit B which connect the assembly 10 and the plurality of brake cylinders 20 to form a closed circuit are included. At this time, since the first hydraulic circuit (A) and the second hydraulic circuit (B) has the same arrangement structure, the configuration of the second hydraulic circuit (B) except for the case where special mention should be made, the first hydraulic circuit (A) ) And the description is omitted.

In addition, a plurality of solenoid valves 30 and 31 which intermittently control the braking hydraulic pressure formed in the master cylinder assembly 10 to be transmitted to the respective brake cylinders 20 and the brake cylinder 20 which are returned from the brake cylinders 20 side. Low pressure accumulator 40 for temporarily storing oil is provided in each hydraulic circuit (A, B).

In addition, the electronically controlled brake system of the present invention includes a pump unit 50 for pressurizing and recirculating oil stored in the low pressure accumulator 40, a motor unit 51 for driving the pump unit 50, and a pump unit 50. It is further provided with a high pressure accumulator 60 for damping the pressure pulsation of the oil discharged from.

The pump unit 50 includes a first pump 50a, a second pump 50b, a third pump 50c, a fourth pump 50d, a fifth pump 50e and a sixth pump 50f. Among these, the first pump 50a, the third pump 50c, and the sixth pump 50f are connected to the first hydraulic circuit A, and the second pump 50b, the fourth pump 50d, and the first pump 50a, The five pump 50e is connected to the second hydraulic circuit B. On the suction side and the discharge side of each of the pumps 50a, 50b, 50c, 50d, 50e, and 50f, check valves 52 are provided to prevent backflow.

All these devices are compactly embedded in a rectangular parallelepiped modulator block 100 made of aluminum (AL) material, and a plurality of flow paths are formed in the modulator block 100 to interconnect them.

The solenoid valves 30 and 31 are disposed in an upstream flow path of the brake cylinder 20 and are normally open solenoid valves 30 (hereinafter referred to as "NO-type solenoid valves") which are normally kept open, and the brake cylinder 20 And a normally closed solenoid valve (31, hereinafter referred to as " NC solenoid valve ") disposed downstream of the < RTI ID = 0.0 >

The low pressure accumulator 40 is disposed in a flow path connecting between the downstream side of the NC type solenoid valve 31 and the pump unit 50, and when the pressure reduction braking of the brake cylinder 20 is performed, the NC type solenoid valve 31 is provided. The oil returned from the brake cylinder 20 at the time of opening is temporarily stored. In addition, the high pressure accumulator 60 is disposed in a passage connecting the discharge side of the pump unit 50 and the upstream side of the NO solenoid valve 30 to damp the pressure pulsation of the oil discharged from the pump unit 50 ( DAMPING CHAMBER). Reference numeral 70 is an orifice that stabilizes the flow of the fluid.

Figure 2 is a perspective view schematically showing the arrangement of the motor and the pump unit according to an embodiment of the present invention, Figure 3 shows a pump unit disposed in a first plane according to an embodiment of the present invention, Figure 4 Figure 4 shows the pump unit disposed on the second plane according to an embodiment of the present invention, Figure 5 is a perspective view showing a connection structure of the pump unit and the hydraulic circuit according to an embodiment of the present invention.

As shown in FIG. 2, the motor unit 51 driving the pump unit 50 is constituted by a single motor having a shaft 53 rotating about a rotation axis X. Two eccentric parts 54 and 55 are provided at different positions in the rotation axis X direction.

The eccentric parts 54 and 55 may be formed integrally with the shaft 53 or the eccentric bearing is coupled to each other, and the first eccentric part 54 and the first eccentric part 54 provided adjacent to the motor part 51 may be provided. ) And a second eccentric portion 55 spaced apart from the predetermined interval.

The first and second eccentric portions 54 and 55 are disposed at corresponding positions so as to be connected to a piston (not shown) of the pump unit 50 described later, and the first and second eccentric portions 54 and 55 are predetermined. It may be provided to have an eccentric phase difference of.

In this embodiment, the first and second eccentric portions 54 and 55 may be provided to have an eccentric phase difference of 60 degrees.

As a result, the pump unit 50 consisting of six pumps to be described later receives a load sequentially, so that an unreasonable load is not applied to the shaft 53 of the motor unit, thereby improving durability life.

Hereinafter, the arrangement of the pump unit operated by the eccentric portion provided on the shaft of the motor portion will be described.

First, the first plane 56c including the rotation axis X of the shaft 53 and the first plane perpendicular to the third plane 56c and parallel to each other at different positions in the direction of the rotation axis X, respectively. 56a and the second plane 56b are provided.

The first plane 56a is disposed at a position corresponding to the first eccentric portion 54 provided on the shaft 53, and the second plane 56b corresponds to the second eccentric portion 55 provided on the shaft 53. Is placed in the position.

The first pump 50a, the second pump 50b, and the third pump 50c are disposed on the first plane 56a.

The first pump 50a is disposed around an axis where the first plane 56a and the third plane 56c intersect, and the second pump 50b is centered on the rotation axis X as shown in FIG. 3. It is disposed around an axis that forms an angle of 60 degrees counterclockwise with the axis of the first pump 50a, and the third pump 50c is counterclockwise with the axis of the first pump 50a about the rotation axis X. It is arranged around the axis forming an angle of 120 degrees.

That is, 60 degrees between the first pump 50a and the second pump 50b, 60 degrees between the second pump 50b and the third pump 50c, and the first pump 50a and the third pump. Between 50c is arranged to form an angle of 240 degrees.

The fourth pump 50d, the fifth pump 50e, and the sixth pump 50f are disposed on the second plane 56b.

The fourth pump 50d is disposed around the axis where the second plane 56b and the third plane 56c intersect, and the fifth pump 50e is centered on the rotation axis X as shown in FIG. 4. It is disposed about an axis that forms an angle of 120 degrees clockwise with the axis of the fourth pump (50d), the sixth pump (50f) is 60 in the clockwise direction and the axis of the fourth pump (50d) around the rotation axis (X) It is arranged about an axis forming an angle of the figure.

That is, between the fourth pump 50d and the fifth pump 50e, 240 degrees, the fourth pump 50d and the sixth pump 50f are 60 degrees, and the fifth pump 50e and the sixth pump ( 50f) are arranged to form an angle of 60 degrees.

Through this configuration, the pump of the pump unit 50 has a symmetrical structure with respect to the third plane 56c including the rotation axis X, so that the piston of the pump unit 50 with respect to the hydraulic circuits A and B You can center the array on one side.

In the present embodiment, as shown in FIG. 4, the sixth pump 50f disposed on the first pump 50a, the third pump 50c, and the second plane 54b disposed on the first plane 56a. Is connected to the first hydraulic circuit A, the second pump 50b disposed on the first plane 54b, and the fourth pump 50d and the fifth pump 50e disposed on the second plane 56b. May be connected to the second hydraulic circuit (B).

Accordingly, in the electronically controlled brake system according to the embodiment of the present invention, three pressures are generated in each of the first and second hydraulic circuits A and B by one rotation of the rotation shaft X, thereby providing a period of pressure pulse. The shorter the pulse width and the smaller the width of the pressure pulse, the less the system shake and the noise.

In addition, the electronic brake system of the present invention can arrange the suction flow path and the discharge flow path of the pump unit 50 to face the same side, thereby enabling the space arrangement of the pump and the compact flow path design.

That is, the suction passages 80a, 80b, 80c, 80d, 80e, and 80f and the discharge passages 90a, 90b, 90c, 90d, 90e, and 90f are formed in one direction, thereby lowering the accumulator 40. And sharing of the high pressure accumulator 60 becomes easy. That is, as shown in Fig. 3, three pumps 50a, 50b, 50e connected to the first hydraulic circuit A are connected to one low pressure accumulator 40 at the suction side and one at the discharge side. Three pumps 50c, 50d, and 50f, which are connected to the high pressure accumulator 60 and connected to the second hydraulic circuit B, are connected to one low pressure accumulator 40 at the suction side, and the discharge side. Is connected to one high pressure accumulator (60). This makes it easier to design a compact brake system.

Although, in the present embodiment, the first, third and sixth pumps 50a, 50c and 50f are connected to the first hydraulic circuit A, and the second, fourth and fifth pumps 50b, 50d and 50e are the second hydraulic pressure. It is connected to the circuit (B), but this is exemplary, three pumps connected to each of the first hydraulic circuit and the second hydraulic circuit can be adjusted according to the structure of the hydraulic circuit and the like.

In addition, the hydraulic circuit of the present invention is illustrative, it is obvious that the pump unit of the present invention can be applied to other hydraulic circuits.

1 is a hydraulic system diagram of an electronically controlled brake system according to an embodiment of the present invention.

Figure 2 is a perspective view schematically showing the arrangement of the motor and the pump unit according to an embodiment of the present invention.

Figure 3 shows a pump unit disposed in the first plane according to an embodiment of the present invention.

Figure 4 shows a pump unit disposed in the second plane according to an embodiment of the present invention.

5 is a perspective view schematically showing a connection structure of a pump unit and a hydraulic circuit according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: master cylinder assembly 20: a plurality of brake cylinders

A: 1st hydraulic circuit B: 2nd hydraulic circuit

50: pump unit 50a ~ 50f: the first pump to the sixth pump

51: motor portion 53: shaft

54: first eccentric 55: second eccentric

Claims (4)

A pump unit having first to sixth pumps installed in the first and second hydraulic circuits connecting the master cylinder assembly and the plurality of brake cylinders to form a closed circuit, and a shaft of the motor part for driving the pump unit. In a pump unit for an electronically controlled brake system, The pump unit includes the first pump to the third pump disposed on the first plane perpendicular to the third plane including the axis of rotation of the shaft, the first pump is the first plane and the third The second pump and the third pump are disposed about 60 degrees and 120 degrees in a counterclockwise direction with respect to the first pump, respectively. The fourth pump to the sixth pump disposed in a second plane provided in parallel with the first plane in the direction of the rotation axis, wherein the fourth pump is centered around the axis of the second plane and the third plane The fifth pump and the sixth pump are disposed to face the first pump, the pump for an electronically controlled brake system, characterized in that spaced apart 60 degrees, 120 degrees clockwise with respect to the fourth pump, respectively. unit. The method of claim 1, The shaft includes a first eccentric portion corresponding to the first plane, and a second eccentric portion corresponding to the second plane pump unit for an electronically controlled brake system. 3. The method of claim 2, And said first eccentric portion and said second eccentric portion have an eccentric phase difference of 60 degrees. The method of claim 3, wherein And the first pump, the third pump and the sixth pump are connected to the first hydraulic circuit, and the remaining three pumps are connected to the second hydraulic circuit.
KR1020090092329A 2009-09-29 2009-09-29 Pump unit for electronic control brake system KR20110034865A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020090092329A KR20110034865A (en) 2009-09-29 2009-09-29 Pump unit for electronic control brake system
DE102010046285.3A DE102010046285B4 (en) 2009-09-29 2010-09-22 Electronically controlled braking system with a pump unit
US12/893,458 US20110074208A1 (en) 2009-09-29 2010-09-29 Pump unit for electronic control brake system
CN2010105828123A CN102039888B (en) 2009-09-29 2010-09-29 Pump unit for electronic control brake system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090092329A KR20110034865A (en) 2009-09-29 2009-09-29 Pump unit for electronic control brake system

Publications (1)

Publication Number Publication Date
KR20110034865A true KR20110034865A (en) 2011-04-06

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KR1020090092329A KR20110034865A (en) 2009-09-29 2009-09-29 Pump unit for electronic control brake system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160086639A (en) * 2015-01-12 2016-07-20 엘지전자 주식회사 A scroll compressor and an air conditioner including the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160086639A (en) * 2015-01-12 2016-07-20 엘지전자 주식회사 A scroll compressor and an air conditioner including the same
US10184472B2 (en) 2015-01-12 2019-01-22 Lg Electronics Inc. Scroll compressor and air conditioner including a scroll compressor

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