KR101578100B1 - Air conditioner for vehicle - Google Patents

Air conditioner for vehicle Download PDF

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Publication number
KR101578100B1
KR101578100B1 KR1020120152857A KR20120152857A KR101578100B1 KR 101578100 B1 KR101578100 B1 KR 101578100B1 KR 1020120152857 A KR1020120152857 A KR 1020120152857A KR 20120152857 A KR20120152857 A KR 20120152857A KR 101578100 B1 KR101578100 B1 KR 101578100B1
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South Korea
Prior art keywords
air
heater core
flow path
inlet
outlet
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KR1020120152857A
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Korean (ko)
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KR20140083292A (en
Inventor
서정훈
서용은
김인혁
김태완
공태윤
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한온시스템 주식회사
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Priority to KR1020120152857A priority Critical patent/KR101578100B1/en
Publication of KR20140083292A publication Critical patent/KR20140083292A/en
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Publication of KR101578100B1 publication Critical patent/KR101578100B1/en

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Abstract

The present invention relates to a vehicle air conditioner, and more particularly, to an air conditioner for a vehicle, and more particularly, to an air conditioner for a vehicle, The present invention also relates to a vehicle air conditioner capable of improving the heating performance of the vehicle, since the entire area of the heater core can be used in the maximum heating mode.

Description

TECHNICAL FIELD [0001] The present invention relates to an air conditioner for an automobile,
The present invention relates to a vehicle air conditioner, and more particularly, to an air conditioner for a vehicle, and more particularly, to an air conditioner for a vehicle, The present invention also relates to a vehicle air conditioner capable of improving the heating performance of the vehicle, since the entire area of the heater core can be used in the maximum heating mode.
Background Art [0002] A vehicle air conditioner is an automobile interior product installed for the purpose of enabling a driver to secure front and rear vision by removing air from the windshield during rainy or winter or by cooling or heating the interior of the automobile in the summer or winter season. Such an air conditioning apparatus is usually equipped with a heating system and a cooling system at the same time so that the outside air or the inside is selectively introduced to heat or cool the air and then air is blown into the inside of the vehicle to cool,
Such a vehicle air conditioner may be developed in various forms according to the type of vehicle or the same type of vehicle according to the specifications. For example, a single zone (full-seat space) air conditioner, a dual zone (front left and right) air conditioner, , Right and left-handed space).
 FIG. 1 is a cross-sectional view of a conventional single zone air conditioning system. In the air conditioning apparatus 1, an air inlet 11 is formed at one side and an opening is controlled by a mode door 16a, 16b, An air conditioning case 10 provided with a defrost vent 12a, a face vent 12b and a floor vent 12c; An evaporator (2) and a heater core (3) provided on the air passage in the air conditioning case (10) at regular intervals in order; And an air blowing device (not shown) connected to the air inlet 11 of the air conditioning case 10 to blow indoor air or outdoor air.
A cooling air flow path P1 for bypassing the heater core 3 and an opening degree of the warm air flow path P2 passing through the heater core 3 are disposed between the evaporator 2 and the heater core 3, A temperature control door 15 is provided to regulate the temperature of the liquid.
According to the vehicle air conditioner 1 configured as described above, when the maximum cooling mode is activated, the temperature control door 15 opens the cold air passage P1 and closes the warm air passage P2 do. Accordingly, the air blown by the air blowing device (not shown) is exchanged with the refrigerant flowing in the evaporator 2 through the evaporator 2 to become a cool air, (16a, 16b, 16c) in accordance with a predetermined air discharge mode (vent mode, bi-level mode, floor mode, mix mode and defrost mode) To the front seat space of the vehicle interior, thereby cooling the front seat space.
Also, when the maximum heating mode is activated, the temperature control door 15 closes the cold air flow path P1 and opens the warm air flow path P2. The air blown by the air blowing apparatus not shown passes through the evaporator 2 and then flows through the heater core 3 through the hot air flow path P2 and flows into the heater core 3 through the cooling water flowing through the heater core 3, And then flows to the mixing chamber MC. Thereafter, the air is discharged through the vent open by the mode doors 16a, 16b, and 16c to the front seat space in the vehicle interior according to the predetermined air discharge mode, Heating of the space is performed.
The dual zone air conditioner is provided with a separator (not shown) at the center of the air conditioner case 10 to divide the inside of the air conditioner case 10 to the left and right, On both sides, left and right temperature control doors that operate independently from each other can be installed to adjust the temperature of left and right seats independently.
The triple-zone air conditioning system 1a is a system in which a seating air passage 20 is added to a lower portion of a warm air passage P2 in the dual-zone air conditioner. Briefly referring to FIG. 2, There is no great difference in that the evaporator 2 and the heater core 3 are installed in the inside of the air conditioner 2 and the air conditioner door 15 and the all-over mode doors 16a, 16b, An upper portion of the heater core 3 is disposed on the hot air passage P2 and a lower portion of the heater core 3 is disposed on the upper air passage 20 .
A rear seat temperature control door 25 is provided on the front side of the heater core 3 and a rear side auxiliary temperature control door 26 is provided on the rear side of the heater core 3.
Further, a forehead air outlet 21 and an annex mode door 27 are provided at an outlet side of the upright air passage 20.
The cold air introduced into the upright air passage 20 through the evaporator 2 is supplied to the upper air passage 20 by adjusting the upper temperature control door 25 and the lower auxiliary temperature control door 26. [ The amount of air passing through the lower region of the heater core 3 disposed in the heater core 3 and the amount of air bypassing the lower region of the heater core 3 are controlled to cool and heat the seated space.
However, in the conventional triple zone air conditioning system 1a, as shown in FIG. 2, when the set temperature of the front seat (the front seat) is the maximum cooling, the cold air passing through the evaporator 2, The air in the hot air passage P2 is heated by the heater core 3 and flows to the cold air side to be mixed with the hot air passage P2. There was a problem that maximum cooling could not be realized.
2, when the set temperature of the rear seat is the maximum heating, the air introduced into the back air passage 20 flows only into the lower region of the heater core 3 disposed on the back air passage 20 There is a problem that the whole area of the heater core 3 can be used and the heating performance is degraded.
SUMMARY OF THE INVENTION The present invention has been made in order to solve the aforementioned problems, and it is an object of the present invention to prevent the deterioration of the performance of the all-round cooling function by closing the inlet and the inlet of the hot air flow path through the center pivot type temperature- And it is an object of the present invention to provide an air conditioner for a vehicle which can improve the heating performance because the entire area of the heater core can be used in the heating mode.
According to an aspect of the present invention, there is provided an air conditioner comprising: an air conditioning case having an air inlet formed on one side thereof and a plurality of air outlets formed on the other side thereof; an evaporator and a heater core, A cooling air flow path formed inside the air conditioning case and allowing the air that has passed through the evaporator to bypass the heater core and an air flow path for allowing the air passing through the evaporator to join the cold air flow path after passing through the heater core, Wherein a plate on one side of the rotary shaft adjusts the opening degree of the cold air flow path and the air flow path inlet between the evaporator and the heater core in the air conditioning case, A temperature control door is provided for controlling the opening degree of the air conditioner, And a lower air passage for supplying a part of the air passing through the evaporator to the rear seat side of the passenger compartment.
The present invention prevents the air in the hot air flow path heated by the heater core from being mixed with the cold air by making the inlet and the outlet of the hot air flow path closed through the center pivot type temperature control door in the full seat maximum cooling mode, So that it is possible to realize the maximum cooling mode.
Further, in the maximum heating mode, the whole area of the heater core can be used, so that the heating performance can be improved.
1 is a sectional view showing a conventional single zone air conditioning apparatus,
2 is a sectional view showing a conventional triple zone air conditioning apparatus,
3 is a perspective view showing a vehicle air conditioner according to the present invention,
FIG. 4 is a sectional view showing the maximum cooling mode and the maximum cooling mode in the vehicle air conditioning system according to the present invention,
FIG. 5 is a sectional view showing a maximum heating mode and a maximum heating mode in a vehicle air conditioning system according to the present invention,
FIG. 6 is a cross-sectional view showing the maximum cooling mode and the maximum maximum heating mode of the vehicle air conditioning system according to the present invention.
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
As shown in the figure, the vehicle air conditioning system 100 according to the present invention has an air inlet 111 on one side and a plurality of pre-air outlet ports 112, 113 and 114 on the other side (outlet side) An evaporator 101 and a heater core 102 which are installed in the air conditioning case 110 and are spaced apart from each other by a predetermined distance in the air flow direction, A cooling air flow path P1 provided between the evaporator 101 and the heater core 102 in the air conditioning case and bypassing the heater core 102 and a hot air flow path And an all-wheel temperature control door 115 for controlling the opening degree of the flow path.
A mixing region MC is formed on the upstream side of the plurality of pre-air outlet ports 112, 113, and 114 so that the cold air passing through the cold air flow path P1 and the warm air passing through the hot air flow path are mixed with each other.
The air flow path P1 and the air flow path are formed on the downstream side of the evaporator 101 in the air conditioning case 110. The air flowing through the evaporator 101 flows into the air flow path P1, And the hot air passage joins the cold air passage P1 after the air having passed through the evaporator 101 passes through the heater core 102. [
The inlet P2 of the hot air passage is branched from the cold air passage P1 and the outlet P3 of the hot air passage is connected to the heater core 102 via the heater core 102. In this case, And communicates with the mixing region MC.
Therefore, the air introduced into the inlet P2 of the hot air passage flows through the heater core 102 and then flows into the mixing region MC through the outlet P3 of the hot air passage to be mixed with the cold air, At this time, a partition 119 separating the inlet P2 of the hot air passage and the outlet P3 of the hot air passage is formed to divide the air on the inlet P2 of the hot air passage and the air on the outlet P3 of the hot air passage, .
The partition wall 119 is formed on the upper end of the heater core 102 and extends from the upper end of the heater core 102 to the rotation axis position of the door temperature control door 115.
An air blowing device (not shown) is installed in the air inlet 111 of the air conditioning case 110 to introduce air or air into the air conditioning case 110.
The plurality of pre-air discharge ports (112, 113, 114) include a defrost vent (112) for discharging air toward the windshield of the vehicle, a face vent (113) for discharging air toward the face of the passengers, And a floor vent 114 for discharging air to the outside.
In addition, the openings of the vents 112, 113, and 114 are controlled by opening and closing the doors through the plurality of omnidirectional mode doors 116.
Meanwhile, a partition wall 117 is formed between the outlet P3 of the air passage and the floor vent 114, and the air flowing into the outlet P3 of the air passage by the partition wall 117 The air flowing into the floor vent 114 is partitioned.
The evaporator 101 is installed so as to stand adjacent to the air inlet 111 of the air conditioning case 110. The heater core 102 is installed to stand up on the hot air flow path. At this time, the heater core 102 is installed so that the entire area of the heater core 102 is disposed on the hot air flow path.
The evaporator 101 and the heater core 102 may be vertically installed in the air conditioning case 110, but they may be installed at an angle with a certain angle as shown in the drawing.
Although not shown in the drawing, a compressor, a condenser, and an expansion valve are connected to the evaporator 101 through a refrigerant pipe to form a refrigeration cycle, so that air passing through the evaporator 101 is cooled, and the heater core 102 The cooling water heated by the engine is circulated to the heater core 102 through the cooling water pipe so that the air passing through the heater core 102 is heated.
Of course, in an electric vehicle or a hybrid vehicle, an electric heater may be installed instead of the heater core 102.
The oven temperature regulating door 115 is formed by forming plates 115a and 115b on both sides of a rotational axis provided between the evaporator 101 and the heater core 102 in the air conditioning case 110 Center pivot type.
One side plate 115a around the rotation axis controls the opening degree of the cold air flow path P1 and the warm air flow path inlet P2 and the other side plate 115b around the rotation axis controls the opening degree of the hot air flow path outlet P3 The opening degree is controlled.
Therefore, when the one-side plate 115a opens the cold air flow path P1 and closes the inlet P2 of the hot air flow path and simultaneously closes the other side plate 115b, The air in the hot air flow path heated by the heater core 102 is prevented from flowing to the mixing region MC and mixed with the cold air by closing the outlet P3 of the hot air flow path, And it is possible to realize the maximum cooling mode.
The one side plate 115a closes the cold air flow path P1 and opens the inlet P2 of the hot air flow path while the other side plate 115b is connected to the outlet P3 of the hot air flow path, .
At this time, the partition 119 formed at the upper end of the heater core 102 is provided with a receiving portion 119a for receiving the other plate 115b for adjusting the opening P3 of the hot air passage in the maximum heating mode The other side plate 115b of the door temperature control door 115 is accommodated in the receiving portion 119a to increase the area of the outlet P3 of the air flow path and reduce the resistance of the air flowing therethrough, Performance can be improved.
On the other hand, the accommodating portion 119a is formed below the upper end of the heater core 102.
In addition, a deep air passage 140 is formed below the air flow path of the air conditioning case 110.
The reserved air passage 140 is divided through the hot air passage and the partition wall 144, and air is supplied to the back side of the interior of the vehicle to perform the independent independent air conditioning. That is, the front seat air-conditioning mode and the cooling / heating of all seats are independently performed.
The inlet of the back air passage 140 is formed so as to communicate with the downstream side (rear side) passage of the evaporator 101 and the outlet of the back air passage 140 is communicated with the back side discharge housing 120 .
The partition wall 144 separating the hot air passage and the back air passage 140 is provided with a hot air inlet 140 for communicating the inlet side of the reserved air passage 140 and the front side air passage of the heater core 102 And a hot air outlet 136 for communicating the outlet side of the reserved air flow path 140 and the rear side hot air flow path of the heater core 102 are formed.
In addition, on the side of the hot air inlet 135, there is provided a seated temperature control door 141 for regulating the opening of the seated air passage 140 and the hot air inlet 135. The seated temperature control door 141 is provided with a door The amount of mixing of the hot air passing through the heater core 102 through the hot air inlet 135 and the hot air outlet 136 and the cold air bypassing the heater core 102 through the hot air passage 140 do.
A supplementary auxiliary temperature control door 142 for regulating the opening degree of the hot air outlet 136 and supplying hot air passed through the heater core 102 to the back discharge housing 120 is provided on the hot air outlet 136 side .
The rear auxiliary temperature control door 142 is connected to the rear temperature control door 141 by a link (not shown).
On the other hand, a back-on-off door 143 is provided in the back air passage 140 to turn on and off the back air passage 140.
Accordingly, in the present invention, when the set temperature of the backstay is the maximum heating, the top and bottom auxiliary temperature control doors 141 and 142 open the hot air inlet 135 and the hot air outlet 136, The air that has passed through the evaporator 101 and is introduced into the hot air inlet 135 is heat-exchanged with the entire area of the heater core 102 and is heated and discharged through the hot air outlet 136 to be supplied to the back side, It is possible to use the entire area of the heater core 102 to improve the heating performance.
In addition, at the outlet side of the back air passage 140, a back discharge housing 120 having a plurality of air discharge openings 120a for discharging air to the back side is provided.
The plurality of air discharging ports 120a are composed of a top face vent 121 for discharging air toward a face of a rear seat occupant and a top floor vent 122 for discharging air toward a foot of a rear seat occupant.
At this time, the upright face vent 121 and the upright floor vent 122 in the upright discharge housing 120 are spaced apart from each other at a predetermined angle about the rotation axis of the upright mode door 145.
In the inside of the top discharge housing 120, a tear-off mode door 145 for controlling the opening of the tearing face vent 121 and the top floor vent 122, which are the plurality of air discharging holes 120a, Respectively.
The joystick mode door 145 may be of various types, such as a rotary type door or a flat type door. In the figure, a rotary type door is installed as an example.
Meanwhile, the air conditioner case 110 is provided with a separator 118 for dividing the interior of the air conditioner case 110 to the left and right, so that the temperatures of the left and right front and rear left and right seats can be independently controlled.
Hereinafter, the operation of the air conditioner for a vehicle according to the present invention will be described.
The description of the general air discharge mode (de-frost mode, vent mode, bistle mode, floor mode, and mix mode) is omitted and representative examples are shown in which the maximum air cooling mode and the maximum air cooling mode, Only the maximum cooling mode and the maximum maximum heating mode will be described.
end. The maximum cooling mode and the maximum cooling mode (FIG. 4)
As shown in FIG. 4, in the full-time maximum cooling mode and the maximum maximum cooling mode, the all-round temperature control door 115 opens the cold air passage P1 and closes the inlet and the outlet P2, P3 of the hot- .
In addition, the upper on-off door 143 opens the upright air passage 140 to close the hot air inlet 135 and the upper auxiliary temperature control door 140 142 closes the hot air outlet 136.
In addition, the air conditioner is operated to circulate cold refrigerant in the evaporator 101.
Therefore, the air blown into the air conditioning case 110 through the air blowing device is changed into the cool air in the process of passing through the evaporator 101, and then some of the cool air passes through the air passage P1 So that the entire seat space is cooled,
Some of the cold air is discharged toward the face of the occupant through the back air passage 140 and the back face vent 121 to cool the upright space.
I. The maximum heating mode and the maximum heating mode (FIG. 5)
As shown in FIG. 5, in the full-time maximum heating mode and the maximum maximum heating mode, the front door temperature control door 115 closes the cold air passage P1 and opens and closes the inlet and the outlet P2 and P3 of the hot- .
Off door 143 closes the upright air passage 140 and the upright temperature control door 141 opens the warm air inlet 135 and the upper auxiliary temperature control door 142 open the hot air outlet 136.
In addition, the air conditioner is stopped, and the hot engine cooling water circulates in the heater core 102.
Therefore, the air blown into the air conditioning case 110 through the blower passes through the evaporator 101, and some of the air that has passed through the evaporator 101 flows through the heater core 102 The air is discharged to the air discharge port 114 to heat the entirety of the seat space,
Some of the air flows into the hot air flow path through the warm air inlet 135 after being introduced into the entrance of the reserved air flow path 140 and is changed into warm air in the course of passing through the heater core 102, And then discharged to the foot of the occupant through the upright floor vent 122 to heat up the upright space.
All. The maximum cooling mode and the maximum heating mode (Fig. 6)
In the full-time maximum cooling mode and the maximum maximum heating mode, as shown in FIG. 6, the all-round temperature control door 115 opens the cold air passage P1 and closes the inlet P2 and the outlet P3 of the hot- .
Off door 143 closes the upright air passage 140 and the upright temperature control door 141 opens the warm air inlet 135 and the upper auxiliary temperature control door 142 open the hot air outlet 136.
In addition, the air conditioner is operated to circulate cold refrigerant in the evaporator 101, and hot engine cooling water circulates in the heater core 102.
Therefore, the air blown into the air conditioning case 110 through the air blowing device is changed into the cool air in the process of passing through the evaporator 101, and then some of the cool air passes through the air passage P1 So that the entire seat space is cooled,
Some of the cool air is introduced into the entrance of the back air passage 140 and then flows into the hot air passage through the hot air inlet 135. After the hot air is changed into hot air in the course of passing through the entire area of the heater core 102, The air is discharged to the discharge outlet housing 120 on the outlet side of the back air passage 140 through the discharge port 136 and then discharged to the foot of the rear occupant through the rear floor vent 122 to heat the upright space.
100: air conditioner 101: evaporator
102: heater core 110: air conditioning case
111: air inlet 112: diffused vents
113: Pace Vents 114: Floor Vents
115: front seat temperature control door 115a, 115b: plate
116: All-purpose mode door
117: partition wall 118: separator
119:
120: Teflon discharge housing 121: Tread face vent
122: Hollow floor vent
135: Hot Air Entrance 136: Hot Air Entrance
140: tapered air flow path 141:
142: Roof auxiliary temperature control door 143: Roof on off door
145: Torsion mode door

Claims (5)

  1. An air conditioning case 110 having an air inlet 111 at one side and a plurality of air outlets 112, 113 and 114 at the other side,
    An evaporator 101 and a heater core 102 installed inside the air conditioning case 110 at a predetermined distance from each other,
    A cooling air flow path P1 formed inside the air conditioning case 110 and allowing air passing through the evaporator 101 to bypass the heater core 102 and air flowing through the evaporator 101 And a warm air flow path for allowing the cool air to flow into the cool air passage (P1) after passing through the heater core (102), the air conditioner comprising:
    A plate 115a on one side of the rotary shaft adjusts the opening degree of the cold air flow path P1 and the warm air flow path inlet P2 between the evaporator 101 and the heater core 102 in the air conditioning case 110, The other side plate 115b is provided with an overturning temperature control door 115 for controlling the opening degree of the hot air passage outlet P3,
    A back air flow path 140 is formed in the lower part of the air flow path of the air conditioning case 110 to supply a part of the air passing through the evaporator 101 to the back side of the interior of the vehicle, Independent,
    A partition wall 119 for partitioning the inlet P2 and the outlet P3 of the hot air passage is formed in the upper end of the heater core 102 in the air conditioning case 110,
    The partition 119 is formed with a receiving portion 119a for receiving the plate 115b of the door temperature control door 115 for adjusting the opening P3 of the hot air passage in the heating mode,
    Wherein the accommodating portion (119a) is formed below the upper end of the heater core (102).
  2. The method according to claim 1,
    The partition wall 144 separating the warm air passage and the back air passage 140 includes a warm air inlet 135 for communicating the inlet side of the upright air passage 140 and the front side air passage of the heater core 102, And a hot air outlet 136 for communicating the outlet side of the reserved air flow path 140 and the rear side hot air flow path of the heater core 102 are formed,
    The hot air inlet 135 is provided at a side of the hot air outlet 136 for controlling the opening degree of the hot air inlet 140 and the hot air inlet 140, And an auxiliary seating temperature control door 142 for controlling the opening degree is provided,
    And the entire area of the heater core (102) can be used in a deep heating mode.
  3. 3. The method of claim 2,
    The air outlet 140 has a plurality of air outlet openings 120a for discharging air to the rear side of the air conditioner case 110,
    Wherein a steering mode door (145) for adjusting the opening of the plurality of air discharge ports (120a) is installed in the inside of the top discharge housing (120).
  4. delete
  5. The method according to claim 1,
    Wherein the heater core (102) is installed such that the entire area of the heater core (102) is disposed on the hot air flow path.
KR1020120152857A 2012-12-26 2012-12-26 Air conditioner for vehicle KR101578100B1 (en)

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Application Number Priority Date Filing Date Title
KR1020120152857A KR101578100B1 (en) 2012-12-26 2012-12-26 Air conditioner for vehicle

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Application Number Priority Date Filing Date Title
KR1020120152857A KR101578100B1 (en) 2012-12-26 2012-12-26 Air conditioner for vehicle

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KR101578100B1 true KR101578100B1 (en) 2015-12-16

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004130974A (en) 2002-10-11 2004-04-30 Denso Corp Air conditioner for vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101036392B1 (en) * 2005-02-01 2011-05-23 한라공조주식회사 Air conditioner for vehicle
KR101040845B1 (en) * 2005-06-17 2011-06-14 한라공조주식회사 Air conditioner for vehicle
KR101313583B1 (en) * 2007-05-29 2013-10-01 한라비스테온공조 주식회사 Air conditioner for vehicle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004130974A (en) 2002-10-11 2004-04-30 Denso Corp Air conditioner for vehicle

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