EP2868983B1 - Range hood - Google Patents

Range hood Download PDF

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Publication number
EP2868983B1
EP2868983B1 EP14188924.6A EP14188924A EP2868983B1 EP 2868983 B1 EP2868983 B1 EP 2868983B1 EP 14188924 A EP14188924 A EP 14188924A EP 2868983 B1 EP2868983 B1 EP 2868983B1
Authority
EP
European Patent Office
Prior art keywords
inlet
inlet portion
disposed
double
range hood
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP14188924.6A
Other languages
German (de)
French (fr)
Other versions
EP2868983A1 (en
Inventor
Ingo Abels
Adnen KATEB
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2868983A1 publication Critical patent/EP2868983A1/en
Application granted granted Critical
Publication of EP2868983B1 publication Critical patent/EP2868983B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGESĀ ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGESĀ ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2035—Arrangement or mounting of filters

Definitions

  • the present invention relates to the field of range hoods.
  • Blower systems of existing range hoods may be classified into two types: single-inlet blower systems and double-inlet blower systems.
  • the existing range hood using a double-inlet blower system has a simple structure and lacks breakthrough.
  • the range hood 1 comprises means for injecting water fine particles to collide with the oil particles to cool and collect the oil particles, and baffles disposed opposite to the liquid injection portion.
  • Document JP H06 300338 A describes a range hood with one or more panels installed between a blower and a filter for an enhanced noise attenuation.
  • Document US 2,535,863 A describes a ventilating device for a kitchen having a common chamber located above stoves and a fan installed above the common chamber. Using the fan, the fume is drawn from the stoves into the common chamber and conducted through filters in order to separate oil and grease from the fume.
  • Document US 2004/055591 A1 describes a range hood housing including a top cover shell, a bottom cover plate fastened to said top cover shell, and an oil cup.
  • the bottom cover plate is provided at a bottom side thereof with a downwardly protruded bottom protrusion such that a top recess opposite the bottom protrusion is correspondingly formed at a top side of the bottom cover plate.
  • the top recess has a bottom portion, a sloping portion surrounding the bottom portion, a plurality of smoke inlets on the sloping portion, and at least one drip hole on the bottom portion.
  • the oil cup is detachably mounted on the bottom side of the bottom cover plate corresponding in location to the drip hole.
  • the main objective of the present invention is to provide an improved range hood.
  • a range hood provided by the present invention includes a double-inlet blower system and a double-inlet housing, and the double-inlet blower system is disposed in the double-inlet housing;
  • the double-inlet blower system includes a first air inlet and a second air inlet disposed back-to-back;
  • the double-inlet housing includes a first inlet portion and a second inlet portion disposed back-to-back; and the first air inlet and the first inlet portion are disposed opposite to each other, and the second air inlet and the second inlet portion are disposed opposite to each other, wherein the first air inlet faces the first inlet portion in a horizontal direction, the second air inlet faces the second inlet portion in the horizontal direction, wherein the first inlet portion comprises two modes, namely, OFF and ON, wherein the first inlet portion is closed in the OFF mode and open in the ON mode, and the second inlet portion comprises two modes, namely, OFF and ON, wherein the second inlet portion is closed in the
  • the double-inlet housing includes a first wall and a second wall disposed back-to-back; the first inlet portion is disposed on the first wall, and the second inlet portion is disposed on the second wall; and the first wall and the second wall are both disposed in an inclined manner, and the first wall and the second wall gradually approach each other from top to bottom.
  • the double-inlet housing assumes an inverted pyramid frustum structure; the first inlet portion and second inlet portion are respectively disposed on two opposite side surfaces of the pyramid frustum.
  • the pyramid frustum further includes a third side surface, the third side surface is connected to and disposed between the two opposite side surfaces; the range hood further includes a man-machine interaction device, and the man-machine interaction device is disposed on the third side surface.
  • the third side surface is disposed to face a user. It can be seen that, the present invention provides a new range hood structure.
  • the third side surface extends in a direction away from a user from top to bottom. In this way, the user may be prevented from touching the third side surface incidentally.
  • the range hood further includes an oil collecting device, and the oil collecting device is disposed at the bottom of the double-inlet housing.
  • the first inlet portion and the second inlet portion are respectively provided with a filtering device.
  • the double-inlet housing uses an integrally formed structure.
  • the double-inlet blower system includes a volute, an impeller and a motor.
  • the present invention provides an embodiment of a range hood, including a man-machine interaction device (not shown), an oil collecting device 7, a double-inlet blower system, and a double-inlet housing.
  • the man-machine interaction device includes a control device and a display device, where the control device includes keys.
  • the double-inlet blower system includes a volute, a multi-blade centrifugal impeller, and a motor.
  • FIG. 1 A reference diagram of a use state of the embodiment of the range hood is shown in FIG. 1 , which is a view obtained from the perspective of a user facing the range hood when the range hood is in the use state, and in the drawing, a sectional view of the range hood is used.
  • the double-inlet blower system is disposed in the double-inlet housing.
  • the double-inlet blower system includes a first air inlet 1 and a second air inlet 2 disposed back-to-back.
  • the double-inlet housing includes a first wall 3 and a second wall 4 disposed back-to-back, where the first wall 3 and the second wall 4 are both disposed in an inclined manner, and the first wall 3 and second wall 4 gradually approach each other from top to bottom, as shown in the drawing.
  • the first wall 3 is provided with a first inlet portion 5, and the second wall 4 is provided with a second inlet portion 6. Further, the first inlet portion 5 and the second inlet portion 6 are also disposed back-to-back. It can be seen that, the first inlet portion 5 uses an inlet structure of a side-draft range hood, and the second inlet portion 6 also uses an inlet structure of a side-draft range hood.
  • the first air inlet 1 and the first inlet portion 5 are disposed opposite to each other, and the second air inlet 2 and the second inlet portion 6 are also disposed opposite to each other. Specifically, as shown in the drawing, the first air inlet 1 faces the first inlet portion 5 in a horizontal direction; and the second air inlet 2 faces the second inlet portion 6 in the horizontal direction.
  • the double-inlet housing is of an inverted pyramid frustum structure
  • the first wall 3 and the second wall 4 are two opposite side surfaces of the pyramid frustum structure.
  • the pyramid frustum structure further includes a third side surface, and the third side surface is connected to and disposed between the first wall 3 and the second wall 4.
  • the man-machine interaction device is disposed on the third side surface.
  • the third side surface is disposed to face the user.
  • the third side surface extends in a direction away from the user from top to bottom; as far as this embodiment is concerned, the range hood is mounted to a wall, so that the third side surface extends towards the wall from top to bottom.
  • first inlet portion 5 and the second inlet portion 6 are each provided with an oil-filter screen 8.
  • the oil collecting device 7 is disposed at the bottom of the double-inlet housing. Oil attached on the oil-filter screens 8 moves downwards under the gravity, and finally flows into the oil collecting device 7.
  • the first inlet portion 5 includes two modes, namely, OFF and ON; the second inlet portion 6 also includes two modes, namely, OFF and ON.
  • the first inlet portion 5 and the second inlet portion 6 are respectively corresponding to two cookers 9 on a cooktop 10. If both of the two cookers 9 work, the first inlet portion 5 is set to the ON mode, so that cooking fume generated by the left cooker 9 flows to the first inlet portion 5, then further flows to the first air inlet 1, and is finally exhausted; the second inlet portion 6 is also set to the ON mode, so that cooking fume generated by the right cooker 9 flows to the second inlet portion 6, then further flows to the second air inlet 2, and is finally exhausted.
  • arrowed lines indicate the cooking fume.
  • the first inlet portion 5 is set to the ON mode, so that cooking fume generated by the left cooker 9 flows to the first inlet portion 5, then further flows to the first air inlet 1, and is finally exhausted; and the second inlet portion 6 is set to the OFF mode (that is, the second inlet portion 6 is closed).
  • the second inlet portion 6 is set to the ON mode, so that cooking fume generated by the right cooker 9 flows to the second inlet portion 6, then further flows to the second air inlet 2, and is finally exhausted; and the first inlet portion 5 is set to the OFF mode (that is, the first inlet portion 5 is closed). If neither of the cookers 9 works, the first inlet portion 5 is set to the OFF mode, and the second inlet portion 6 is also set to the OFF mode.
  • control device may further include a touch screen, a knob, or the like.
  • man-machine interaction device may merely include the control device.
  • man-machine interaction device may merely include the display device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Description

    Technical Field
  • The present invention relates to the field of range hoods.
    • Related Art
  • Blower systems of existing range hoods may be classified into two types: single-inlet blower systems and double-inlet blower systems. The existing range hood using a double-inlet blower system has a simple structure and lacks breakthrough.
  • Unless being supported by sufficient proofs, the prior art described herein does not mean that the prior art is well known by those of ordinary skill in the art of the present invention before the date of application of the present application.
  • Document JP 2008 064347 A describes a range hood capable of collecting oil particles in a fume from a cooking device. The range hood 1 comprises means for injecting water fine particles to collide with the oil particles to cool and collect the oil particles, and baffles disposed opposite to the liquid injection portion.
  • Document JP H06 300338 A describes a range hood with one or more panels installed between a blower and a filter for an enhanced noise attenuation.
  • Document US 2,535,863 A describes a ventilating device for a kitchen having a common chamber located above stoves and a fan installed above the common chamber. Using the fan, the fume is drawn from the stoves into the common chamber and conducted through filters in order to separate oil and grease from the fume.
  • Document US 2004/055591 A1 describes a range hood housing including a top cover shell, a bottom cover plate fastened to said top cover shell, and an oil cup. The bottom cover plate is provided at a bottom side thereof with a downwardly protruded bottom protrusion such that a top recess opposite the bottom protrusion is correspondingly formed at a top side of the bottom cover plate. The top recess has a bottom portion, a sloping portion surrounding the bottom portion, a plurality of smoke inlets on the sloping portion, and at least one drip hole on the bottom portion. The oil cup is detachably mounted on the bottom side of the bottom cover plate corresponding in location to the drip hole.
    • SUMMARY
  • The main objective of the present invention is to provide an improved range hood.
  • A range hood provided by the present invention includes a double-inlet blower system and a double-inlet housing, and the double-inlet blower system is disposed in the double-inlet housing; the double-inlet blower system includes a first air inlet and a second air inlet disposed back-to-back; the double-inlet housing includes a first inlet portion and a second inlet portion disposed back-to-back; and the first air inlet and the first inlet portion are disposed opposite to each other, and the second air inlet and the second inlet portion are disposed opposite to each other, wherein the first air inlet faces the first inlet portion in a horizontal direction, the second air inlet faces the second inlet portion in the horizontal direction, wherein the first inlet portion comprises two modes, namely, OFF and ON, wherein the first inlet portion is closed in the OFF mode and open in the ON mode, and the second inlet portion comprises two modes, namely, OFF and ON, wherein the second inlet portion is closed in the OFF mode and open in the ON mode. It can be seen that, the present invention provides a new range hood structure. In this way, air flows more smoothly, and the air intake efficiency of the double-inlet blower system can be improved.
  • Optionally, the double-inlet housing includes a first wall and a second wall disposed back-to-back; the first inlet portion is disposed on the first wall, and the second inlet portion is disposed on the second wall; and the first wall and the second wall are both disposed in an inclined manner, and the first wall and the second wall gradually approach each other from top to bottom.
  • Optionally, the double-inlet housing assumes an inverted pyramid frustum structure; the first inlet portion and second inlet portion are respectively disposed on two opposite side surfaces of the pyramid frustum.
  • Optionally, the pyramid frustum further includes a third side surface, the third side surface is connected to and disposed between the two opposite side surfaces; the range hood further includes a man-machine interaction device, and the man-machine interaction device is disposed on the third side surface.
  • Optionally, in a use state, the third side surface is disposed to face a user. It can be seen that, the present invention provides a new range hood structure.
  • Optionally, in a use state, the third side surface extends in a direction away from a user from top to bottom. In this way, the user may be prevented from touching the third side surface incidentally.
  • Optionally, the range hood further includes an oil collecting device, and the oil collecting device is disposed at the bottom of the double-inlet housing.
  • Optionally, the first inlet portion and the second inlet portion are respectively provided with a filtering device.
  • Optionally, the double-inlet housing uses an integrally formed structure.
  • Optionally, the double-inlet blower system includes a volute, an impeller and a motor.
  • It should be noted that, directional expressions such as "disposed in an inclined manner", "from top to bottom", and "in the horizontal direction" are used based on a customary mounting state of the range hood if there is no specific illustration.
  • It should be pointed out that, "first", "second" and "third" used in the specification are merely used for description, and are not used to indicate relative importance; moreover, they are not used to define the number of the limited features; moreover, they are not used to define logic relationships or order relationships of the limited features.
  • The summary of the present invention is not used to describe all possible implementation manners of the present invention. In the whole application, many examples are used for guidance, and the examples may be used to various feasible combinations.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The disclosure will become more fully understood from the detailed description given herein below for illustration only, and thus are not limitative of the disclosure, and wherein:
    • FIG. 1 is a reference diagram of a use state of an embodiment of a range hood according to the present invention.
    DETAILED DESCRIPTION
  • To make the objectives, solutions and beneficial effects of the present invention more comprehensible, the present invention is further described with reference to the accompany drawings and preferred embodiments. Some accompany drawings may not be precise enough, and in this case, the description set forth herein prevails.
  • The present invention provides an embodiment of a range hood, including a man-machine interaction device (not shown), an oil collecting device 7, a double-inlet blower system, and a double-inlet housing. Specifically, the man-machine interaction device includes a control device and a display device, where the control device includes keys. The double-inlet blower system includes a volute, a multi-blade centrifugal impeller, and a motor. A reference diagram of a use state of the embodiment of the range hood is shown in FIG. 1, which is a view obtained from the perspective of a user facing the range hood when the range hood is in the use state, and in the drawing, a sectional view of the range hood is used.
  • The double-inlet blower system is disposed in the double-inlet housing. The double-inlet blower system includes a first air inlet 1 and a second air inlet 2 disposed back-to-back. The double-inlet housing includes a first wall 3 and a second wall 4 disposed back-to-back, where the first wall 3 and the second wall 4 are both disposed in an inclined manner, and the first wall 3 and second wall 4 gradually approach each other from top to bottom, as shown in the drawing. The first wall 3 is provided with a first inlet portion 5, and the second wall 4 is provided with a second inlet portion 6. Further, the first inlet portion 5 and the second inlet portion 6 are also disposed back-to-back. It can be seen that, the first inlet portion 5 uses an inlet structure of a side-draft range hood, and the second inlet portion 6 also uses an inlet structure of a side-draft range hood.
  • The first air inlet 1 and the first inlet portion 5 are disposed opposite to each other, and the second air inlet 2 and the second inlet portion 6 are also disposed opposite to each other. Specifically, as shown in the drawing, the first air inlet 1 faces the first inlet portion 5 in a horizontal direction; and the second air inlet 2 faces the second inlet portion 6 in the horizontal direction.
  • Specifically, the double-inlet housing is of an inverted pyramid frustum structure, and the first wall 3 and the second wall 4 are two opposite side surfaces of the pyramid frustum structure. The pyramid frustum structure further includes a third side surface, and the third side surface is connected to and disposed between the first wall 3 and the second wall 4. The man-machine interaction device is disposed on the third side surface. In the use state, the third side surface is disposed to face the user. Moreover, in the use state, the third side surface extends in a direction away from the user from top to bottom; as far as this embodiment is concerned, the range hood is mounted to a wall, so that the third side surface extends towards the wall from top to bottom.
  • In addition, as shown in the drawing, the first inlet portion 5 and the second inlet portion 6 are each provided with an oil-filter screen 8. The oil collecting device 7 is disposed at the bottom of the double-inlet housing. Oil attached on the oil-filter screens 8 moves downwards under the gravity, and finally flows into the oil collecting device 7.
  • The first inlet portion 5 includes two modes, namely, OFF and ON; the second inlet portion 6 also includes two modes, namely, OFF and ON. The first inlet portion 5 and the second inlet portion 6 are respectively corresponding to two cookers 9 on a cooktop 10. If both of the two cookers 9 work, the first inlet portion 5 is set to the ON mode, so that cooking fume generated by the left cooker 9 flows to the first inlet portion 5, then further flows to the first air inlet 1, and is finally exhausted; the second inlet portion 6 is also set to the ON mode, so that cooking fume generated by the right cooker 9 flows to the second inlet portion 6, then further flows to the second air inlet 2, and is finally exhausted. Specifically, as shown in the drawing, arrowed lines indicate the cooking fume. If merely the left cooker 9 in the two cookers 9 works, the first inlet portion 5 is set to the ON mode, so that cooking fume generated by the left cooker 9 flows to the first inlet portion 5, then further flows to the first air inlet 1, and is finally exhausted; and the second inlet portion 6 is set to the OFF mode (that is, the second inlet portion 6 is closed). If merely the right cooker 9 in the two cookers 9 works, the second inlet portion 6 is set to the ON mode, so that cooking fume generated by the right cooker 9 flows to the second inlet portion 6, then further flows to the second air inlet 2, and is finally exhausted; and the first inlet portion 5 is set to the OFF mode (that is, the first inlet portion 5 is closed). If neither of the cookers 9 works, the first inlet portion 5 is set to the OFF mode, and the second inlet portion 6 is also set to the OFF mode.
  • The above description is merely a preferred embodiment of the present invention, and other embodiments may further be obtained by adding, deleting, modifying or replacing some technical features. For example, the control device may further include a touch screen, a knob, or the like. For another example, the man-machine interaction device may merely include the control device. For still another example, the man-machine interaction device may merely include the display device.
    • Reference numerals:
    • 1.
    first air inlet,
    2.
    second air inlet,
    3.
    first wall,
    4.
    second wall,
    5.
    first inlet portion,
    6.
    second inlet portion,
    7.
    oil collecting device,
    8.
    oil-filter screen,
    9.
    cooker,
    10.
    cooktop.

Claims (10)

  1. A range hood
    comprising a double-inlet blower system and a double-inlet housing, the double-inlet blower system being disposed in the double-inlet housing;
    the double-inlet blower system comprising a first air inlet (1) and a second air inlet (2) disposed back-to-back;
    the double-inlet housing comprising a first inlet portion (5) and a second inlet portion (6) disposed back-to-back;
    the first air inlet (1) and the first inlet portion (5) being disposed opposite to each other, and the second air inlet (2) and the second inlet portion (6) being disposed opposite to each other;
    the first air inlet (1) faces the first inlet portion (5) in a horizontal direction;
    the second air inlet (2) faces the second inlet portion (6) in the horizontal direction;
    the first inlet portion (5) comprises two modes, namely, OFF and ON, and
    the second inlet portion (6) comprises two modes, namely, OFF and ON, characterized in that the first inlet portion (2) is closed in the OFF mode and open in the ON mode, and
    the second inlet portion (6) is closed in the OFF mode and open in the ON mode.
  2. The range hood according to claim 1, characterized in that:
    the double-inlet housing comprises a first wall (3) and a second wall (4) disposed back-to-back;
    the first inlet portion (5) is disposed on the first wall (3), and the second inlet portion (6) is disposed on the second wall (4); and
    the first wall (3) and the second wall (4) are both disposed in an inclined manner,
    and the first wall (3) and the second wall (4) gradually approach each other from top to bottom.
  3. The range hood according to claim 1, characterized in that:
    the double-inlet housing assumes an inverted pyramid frustum structure;
    the first inlet portion (5) and the second inlet portion (6) are respectively disposed on two opposite side surfaces of the pyramid frustum.
  4. The range hood according to claim 3, characterized in that:
    the pyramid frustum further comprises a third side surface, and the third side surface is connected to and disposed between the two opposite side surfaces of the pyramid frustum; and
    the range hood further comprises a man-machine interaction device, and the man-machine interaction device is disposed on the third side surface.
  5. The range hood according to claim 4, characterized in that:
    in a use state, the third side surface is disposed to face a user.
  6. The range hood according to claim 5, characterized in that:
    in the use state, the third side surface extends in a direction away from the user from top to bottom.
  7. The range hood according to claim 2 or 3, characterized by:
    further comprising an oil collecting device (7), the oil collecting device (7) being disposed at the bottom of the double-inlet housing.
  8. The range hood according to claim 1, characterized in that:
    the first inlet portion (5) and the second inlet portion (6) are respectively provided with a filtering device.
  9. The range hood according to claim 1, characterized in that:
    the double-inlet housing uses an integrally formed structure.
  10. The range hood according to claim 1, characterized in that:
    the double-inlet blower system comprises a volute, an impeller, and a motor.
EP14188924.6A 2013-10-16 2014-10-15 Range hood Not-in-force EP2868983B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310483069.XA CN104566568A (en) 2013-10-16 2013-10-16 Range hood

Publications (2)

Publication Number Publication Date
EP2868983A1 EP2868983A1 (en) 2015-05-06
EP2868983B1 true EP2868983B1 (en) 2019-10-02

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CN108870482A (en) * 2017-05-15 2018-11-23 ęµ™ę±Ÿēæ尚ē”µå™Øč‚”ä»½ęœ‰é™å…¬åø Range hood and its three-dimensional air intake system
US11371718B2 (en) 2017-10-10 2022-06-28 Hangzhou Robam Appliances Co., Ltd. Fume collecting assembly, range hood, side suction range hood, range hood for two-sided fume collection and central air intake, range hood with partition, and central fume purification device
CN109028246A (en) * 2018-10-18 2018-12-18 ę­å·žč€ęæē”µå™Øč‚”ä»½ęœ‰é™å…¬åø Oil network and kitchen ventilator
CN114763916B (en) * 2021-01-11 2023-03-24 å®ę³¢ę–¹å¤ŖåŽØå…·ęœ‰é™å…¬åø Fume exhaust fan
CN114763917B (en) * 2021-01-11 2023-06-20 å®ę³¢ę–¹å¤ŖåŽØå…·ęœ‰é™å…¬åø Fume exhauster
CN114763913A (en) * 2021-01-11 2022-07-19 å®ę³¢ę–¹å¤ŖåŽØå…·ęœ‰é™å…¬åø Range hood and control method thereof
CN114763915B (en) * 2021-01-11 2023-10-20 å®ę³¢ę–¹å¤ŖåŽØå…·ęœ‰é™å…¬åø Range hood and control method thereof
CN113375204B (en) * 2021-06-25 2023-04-14 å®ę³¢ę–¹å¤ŖåŽØå…·ęœ‰é™å…¬åø Range hood and control method thereof

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CN104566568A (en) 2015-04-29

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