CN217787585U - Projector with a light source - Google Patents

Abstract

The utility model relates to a projector, include: the optical machine, the first radiator, the second radiator and the fan are arranged in the shell; the two opposite side walls of the shell are respectively provided with an air inlet and an air outlet; the first radiator comprises a first radiating part, and the first radiating part is arranged on one side of the optical machine facing the air inlet; the second radiator is arranged on one side of the optical machine facing the air outlet; the fan is arranged at the bottom side of the optical machine and provided with an air inlet and an air outlet, a first heat dissipation channel is formed between the air inlet and the air inlet hole, the first heat dissipation channel is positioned in the first heat dissipation channel, a second heat dissipation channel is formed between the air outlet and the air outlet hole, and the second heat dissipation channel is positioned in the second heat dissipation channel. Because first radiator, second radiator and fan setting are in the different positions of ray apparatus, are favorable to reducing the occupation of space, improve compact structure nature to be favorable to improving the radiating effect to the ray apparatus, thereby improve the radiating efficiency of projecting apparatus, guarantee the operational reliability of projecting apparatus.

Description

Projector with a light source

Technical Field

The utility model relates to a projecting apparatus technical field especially relates to a projecting apparatus.

Background

With the development of image technology, a projection display technology appears, and as the projector belongs to a high-precision optical, mechanical and electrical integration product, internal components are very sensitive to temperature, and the complexity of an internal structure makes the requirements on the temperature of the projector strict, which have higher requirements on the heat dissipation of the projector.

In the conventional art, heat dissipation of an existing projector is performed by a heat sink and a fan. The existing heat dissipation module has large size, large occupied space and low heat dissipation efficiency, and influences the heat dissipation effect. In order to meet the heat dissipation requirement, the rotating speed of the fan must be increased, but the wind noise is increased, so that the user experience is influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to overcome the defects of the prior art and provide a projector, which can effectively reduce the occupied space and improve the heat dissipation efficiency.

The technical scheme is as follows: a projector, comprising: the air inlet and the air outlet are respectively arranged on two opposite side walls of the shell; the optical machine is arranged in the shell; the first radiator comprises a first radiating part, and the first radiating part is arranged on one side, facing the air inlet hole, of the optical machine; the second radiator is arranged on one side, facing the air outlet, of the optical machine; the fan is arranged on the bottom side of the optical machine and provided with an air inlet and an air outlet, a first heat dissipation channel is formed between the air inlet and the air inlet hole, the first heat dissipation device is located in the first heat dissipation channel, a second heat dissipation channel is formed between the air outlet and the air outlet hole, and the second heat dissipation device is located in the second heat dissipation channel.

In the working process of the projector, the optical machine runs to generate heat to raise the temperature, the fan rotates to generate negative pressure, so that outside air enters the shell through the air inlet hole, flows through the first radiator when passing through the first radiating channel and exchanges heat with the first radiator to take away the heat on the first radiator; the air after heat exchange is sucked by the air inlet of the fan under the suction action of the fan, is discharged from the air outlet, enters the second heat dissipation channel, then is subjected to heat exchange of the second heat radiator to take away the heat on the second heat radiator, and finally is discharged out of the shell from the air outlet hole, so that the whole heat dissipation process is completed, and the light machine is cooled. Because first radiator, second radiator and fan setting are in the different positions of ray apparatus, are favorable to reducing the occupation of space, improve compact structure nature to be favorable to improving the radiating effect to the ray apparatus, thereby improve the radiating efficiency of projecting apparatus, guarantee the operational reliability of projecting apparatus.

In one embodiment, the projector further includes a support, the optical machine and the fan are respectively connected to two opposite sides of the support, the air inlet includes a first air inlet portion arranged on one side of the fan facing the optical machine, the support is provided with a vent, and at least part of the vent is opposite to the first air inlet portion.

In one embodiment, the bracket comprises a bottom plate and a side plate, the side plate is connected to the edge of one side, facing the air inlet, of the bottom plate, the bottom plate extends in the direction away from the optical machine, a first opening is formed in the bottom plate, a second opening is formed in the side plate, and the first opening is communicated with the second opening to form the ventilation opening.

In one embodiment, the optical engine includes a housing, a light source and an optical modulator, the light source is disposed on a housing wall of one side of the housing facing the air outlet, the optical modulator is disposed in a cavity of the housing and located on an emergent light path of the light source, the first heat sink is communicated with the cavity of the housing, and the second heat sink is in heat conduction connection with the light source.

In one embodiment, the second heat sink includes a heat conducting substrate, a heat conducting pipe, and a heat dissipating fin, the heat conducting substrate is connected to the heat dissipating fin through the heat conducting pipe, the heat dissipating fin is located in the second heat dissipating channel, and the heat conducting substrate is connected to the light source in a heat conducting manner.

In one embodiment, the second heat sink further comprises a wind shield, the wind shield is sleeved on the outer side of the heat dissipation fins, and one side of the wind shield, which is far away from the optical machine, is abutted against the inner wall of the housing.

In one embodiment, the first heat sink further includes a second heat sink portion, the first heat sink portion and the second heat sink portion are connected at an included angle, the first heat sink portion and the second heat sink are respectively disposed on two opposite sides of the housing, the second heat sink portion is disposed between the housing and the bracket, and the vent and the second heat sink portion are disposed correspondingly.

In one embodiment, the projector further includes a main board, the main board is disposed on a side of the fan away from the optical engine, the air inlet further includes a second air inlet portion disposed on a side of the fan facing the main board, and the second air inlet portion corresponds to the main board.

In one embodiment, the projector further includes a third heat sink, the third heat sink is thermally connected to the motherboard, and the third heat sink is disposed between the fan and the motherboard.

In one embodiment, a connecting column is arranged on one side of the support frame, which is away from the optical machine, the main board is connected with the support frame through the connecting column, and a gap is formed between the main board and the support frame.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic diagram of a part of a projector according to an embodiment;

fig. 2 is a schematic diagram of a partial structure of a projector in an embodiment;

FIG. 3 is an exploded view of a projector according to an embodiment;

fig. 4 is an exploded view of the projector according to an embodiment.

Description of the reference numerals:

100. a projector; 110. an optical machine; 111. a housing; 112. a light source; 120. a first heat sink; 121. a first heat sink portion; 122. a second heat sink member; 130. a second heat sink; 131. a thermally conductive substrate; 132. a heat conduction pipe; 133. a heat dissipating fin; 134. a windshield; 140. a fan; 141. an air inlet; 1411. a first air inlet portion; 1412. a second air inlet portion; 142. an air outlet; 150. a support; 151. a vent; 152. a base plate; 153. a side plate; 154. connecting columns; 155. limiting ribs; 160. a main board; 170. a third heat sink; 180. a housing; 181. an air inlet hole; 182. an air outlet; 183. a mating portion.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, fig. 1 is a schematic view illustrating a partial structure of a projector 100 according to an embodiment of the present invention; fig. 2 is a schematic diagram illustrating a part of the structure of the projector 100 according to an embodiment of the present invention; fig. 3 is a schematic exploded view of a projector 100 according to an embodiment of the present invention, and fig. 4 is a schematic exploded view of an overall structure of the projector 100 according to an embodiment of the present invention. An embodiment of the present invention provides a projector 100, include: the optical module comprises a housing 180, an optical machine 110, a first heat sink 120, a second heat sink 130 and a fan 140. The optical engine 110 is disposed in the housing 180, and an air inlet 181 and an air outlet 182 are respectively disposed on two opposite sidewalls of the housing 180. The first heat sink 120 includes a first heat sink portion 121, and the first heat sink portion 121 is disposed on a side of the optical engine 110 facing the air inlet 181. The second heat sink 130 is disposed on a side of the optical engine 110 facing the air outlet 182. The fan 140 is disposed at a bottom side of the optical engine 110, the fan 140 has an air inlet 141 and an air outlet 142, a first heat dissipation channel is formed between the air inlet 141 and the air inlet 181, and the first heat sink 120 is located in the first heat dissipation channel. A second heat dissipation channel is formed between the air outlet 142 and the air outlet 182, and the second heat sink 130 is located in the second heat dissipation channel.

In the projector 100, during operation, the optical engine 110 operates to generate heat to raise the temperature, and the fan 140 rotates to generate negative pressure, so that the external air enters the housing 180 through the air inlet hole 181, flows through the first heat sink 120 through the first heat dissipation channel, and exchanges heat with the first heat sink 120 to take away the heat on the first heat sink 120; the air after heat exchange is sucked by the air inlet 141 of the fan 140, is discharged from the air outlet 142, enters the second heat dissipation channel, exchanges heat with the second heat sink 130 to take away heat on the second heat sink, and is finally discharged out of the housing 180 through the air outlet 182, so that the whole heat dissipation process is completed, and the heat dissipation of the optical machine 110 is realized. Because the first heat sink 120, the second heat sink 130 and the fan 140 are disposed at different positions of the optical engine 110, the space occupation is reduced, the structural compactness is improved, and the heat dissipation effect of the optical engine 110 is improved, so that the heat dissipation efficiency of the projector 100 is improved, and the operational reliability of the projector 100 is ensured.

Specifically, the housing 180 is provided with an installation cavity, the optical engine 110, the first heat sink 120, the second heat sink 130 and the fan 140 are all disposed in the installation cavity, the air inlet hole 181 and the air outlet hole 182 are disposed on the housing 180 opposite to each other, the air inlet hole 181 and the air outlet hole 182 are both communicated with the installation cavity, air can flow between the air inlet 141 and the air inlet hole 181, and the first heat sink 120 is disposed in the first heat dissipation channel, and when air enters the installation cavity from the air inlet hole 181 on the housing 180, the air flows through the first heat sink 120 through the first heat dissipation channel, and is then sucked by the air inlet 141 of the fan 140. The air can flow between the air outlet 142 and the air outlet 182, and the second heat sink 130 is located in the second heat dissipation channel, and when the air is exhausted from the air outlet 142 of the fan 140, the air flows through the second heat sink 130 and is exhausted from the housing 180 through the air outlet 182.

Alternatively, as shown in fig. 4, the housing 180 includes: the device comprises a left shell, a right shell, a front cover and a rear cover. The left shell and the right shell are connected to form an installation cavity in a surrounding mode, a front opening is formed in the front side of the installation cavity, and a rear opening is formed in the rear side of the installation cavity. The front cover covers the front opening, and the rear cover covers the rear opening. The air inlet hole 181 is disposed on the rear cover, and the air outlet hole 182 is disposed on the front cover. The air inlet holes 181 and the air outlet holes 182 are plural, and the shape, size, arrangement area, etc. can be set according to actual conditions.

In an embodiment, referring to fig. 1, fig. 2 and fig. 3, the projector 100 further includes a bracket 150, the optical engine 110 and the fan 140 are respectively connected to two opposite sides of the bracket 150, that is, the optical engine 110 is connected to an upper side of the bracket 150, and the fan 140 is connected to a lower side of the bracket 150. The air inlet 141 includes a first air inlet portion 1411 disposed on a side of the fan 140 facing the optical engine 110, and the bracket 150 is provided with a vent 151, at least a portion of the vent 151 being opposite to the first air inlet 141. Thus, the optical machine 110 and the fan 140 are connected to two opposite sides of the bracket 150, so that the installation and the disassembly are convenient, and the bracket 150 is provided with the vent 151 for air circulation of the first heat dissipation channel, thereby being beneficial to ensuring the heat dissipation efficiency.

In one embodiment, referring to fig. 1 and 2, the bracket 150 includes a bottom plate 152 and a side plate 153, the side plate 153 is connected to an edge of the bottom plate 152 facing to one side of the air inlet hole 181, the bottom plate 152 extends in a direction away from the light machine 110, a first opening is disposed on the bottom plate 152, a second opening is disposed on the side plate, and the first opening and the second opening are communicated to form the vent 151. For example, the bottom plate 152 is vertically connected to one end of the side plate 153. So, on the one hand interconnect's bottom plate 152 and curb plate 153 can improve support 150's bulk strength and structural stability, and on the other hand, bottom plate 152 and curb plate 153 are equipped with first opening, second opening respectively, are favorable to improving the area of vent 151, guarantee the ventilation effect.

Of course, in other embodiments, the vent 151 may be disposed only on the bottom plate 152.

In one embodiment, referring to fig. 3, the optical engine 110 includes a housing 111, a light source 112 and a light modulator. The light source 112 is disposed on a wall of the case 111 facing the side of the air outlet 182, the light modulator is disposed in the cavity of the case 111 and located on an emergent light path of the light source 112, the first heat sink 120 is communicated with the cavity of the case 111, and the second heat sink 130 is in heat conduction connection with the light source 112. In this way, the first heat sink 120 can dissipate heat generated by the optical modulator, specifically, the optical modulator is specifically a liquid crystal panel, the heat generated by the optical modulator is transferred into the cavity of the chassis 111, and since the first heat sink 120 is communicated with the cavity of the chassis 111, the heat is transferred to the first heat sink 120 so as to dissipate the heat. The light source 112 is an LED light source, and the second heat sink 130 can dissipate heat of the light source 112. Thus, the heat dissipation effect of the optical machine 110 is improved.

In one embodiment, referring to fig. 3, the second heat sink 130 includes a heat conducting substrate 131, a heat conducting pipe 132 and heat dissipating fins 133, the heat conducting substrate 131 is connected to the heat dissipating fins 133 through the heat conducting pipe 132, the heat dissipating fins 133 are located in the second heat dissipating channel, and the heat conducting substrate 131 is connected to the light source 112 in a heat conducting manner. Thus, the heat generated by the light source 112 is transferred to the heat conducting substrate 131, and then transferred to the heat dissipating fins 133 through the heat conducting pipes 132, so that the heat dissipating area of the heat dissipating fins 133 is larger, thereby facilitating the heat dissipation of the light source 112.

In one embodiment, referring to fig. 3, the second heat sink 130 further includes a wind shield 134, the wind shield is sleeved outside the heat dissipation fins 133, and one side of the wind shield 133 away from the optical engine 110 abuts against an inner wall of the housing 180. The windshield 134 is made of foam or the like. Therefore, the heat dissipation airflow passing through the heat dissipation fins 133 can be prevented from overflowing, the heat dissipation airflow is guaranteed to be discharged out of the shell 180 through the air outlet 182, and the heat dissipation efficiency is improved.

In an embodiment, referring to fig. 2, the first heat sink 120 further includes a second heat sink portion 122, the first heat sink portion 121 and the second heat sink portion 122 are connected at an included angle, the first heat sink portion 121 and the second heat sink 130 are respectively disposed on two opposite sides of the housing 111, the second heat sink portion 122 is disposed between the housing 111 and the bracket 150, and the vents 151 are disposed corresponding to the second heat sink portion 122. The first heat sink member 121 and the second heat sink member 122 may be connected at a right angle or an obtuse angle. In addition, a plurality of heat dissipation fins are disposed on each of the first heat dissipation portion 121 and the second heat dissipation portion 122, and the plurality of heat dissipation fins extend in the direction in which the airflow flows, for example, the heat dissipation fins on the first heat dissipation portion 121 extend in the vertical direction, and the heat dissipation fins on the second heat dissipation portion 122 extend in the direction from the air inlet holes 181 to the air outlet holes 182. Thus, in the first heat dissipation channel, the second heat dissipation portion 122 and the first heat dissipation portion 121 can both provide a heat dissipation effect, which is beneficial to increasing the heat dissipation area of the first heat sink 120.

In an embodiment, referring to fig. 3, the projector 100 further includes a main board 160, the main board 160 is disposed on a side of the fan away from the optical engine 110, the air inlet 141 further includes a second air inlet portion 1412 disposed on a side of the fan 140 facing the main board 160, and the second air inlet portion 1412 is disposed corresponding to the main board 160. Alternatively, the main board 160 may be connected to the chassis 111, and may also be disposed on the bracket 150, and indirectly connected to the chassis 111 of the optical engine 110 through the bracket 150. Specifically, in fig. 3, the main board 160 is connected to the bracket 150 to form a gap, and the fan 140 is disposed in the gap and connected to the bracket 150. Thus, the fan 140 can simultaneously perform air suction operation through the first air inlet portion 1411 and the second air inlet portion 1412, so as to dissipate heat of the optical machine 110 and the main board 160, which is beneficial to improving the overall heat dissipation efficiency of the projector 100, and the main board 160, the fan 140 and the bracket 150 are compact in structure in a connection manner, which is beneficial to reducing the occupation of space.

In an embodiment, referring to fig. 1, fig. 2 and fig. 3, the projector 100 further includes a third heat sink 170, the third heat sink 170 is connected to the motherboard 160 in a heat conducting manner, and the third heat sink 170 is disposed between the fan 140 and the motherboard 160. Specifically, the third heat sink 170 is provided with a plurality of fins, and the fins of the third heat sink 170 are convexly disposed toward the fan 140 and extend in a direction from the air inlet hole 181 to the air outlet hole 182. Therefore, the heat of the motherboard 160 can be transferred to the third heat sink 170, and the flowing air passes through the third heat sink 170 under the action of the fan 140 to take away the heat of the third heat sink 170, so as to dissipate the heat of the motherboard 160, thereby improving the operational reliability of the motherboard 160.

In one embodiment, referring to fig. 1, fig. 2 and fig. 3, a connecting column 154 is disposed on a side of the bracket 150 away from the optical engine 110, and the main board 160 is connected to the bracket 150 through the connecting column 154, so that a gap is formed between the main board 160 and the bracket 150. Further, the number of the connecting posts 154 is two or more. Two or more connecting posts 154 are spaced apart at opposite ends of carrier 150. In this way, the fan 140 can be disposed between the bracket 150 and the main board 160, thereby achieving heat dissipation to the optical engine 110 and to the main board 160.

Optionally, the two opposite side edges of the bracket 150 are respectively provided with a limiting rib 155, and the limiting rib 155 is used for limiting and matching with a matching part 183 arranged on the inner side wall of the housing 180. The stability of the whole structure of the assembled projector 100 is improved by the limit fit of the limit rib 155 of the bracket 150 and the fit part 183 of the housing 180.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A projector, characterized in that the projector comprises:

the air inlet and the air outlet are respectively arranged on two opposite side walls of the shell;

the optical machine is arranged in the shell;

the first radiator comprises a first radiating part, and the first radiating part is arranged on one side, facing the air inlet hole, of the optical machine;

the second radiator is arranged on one side, facing the air outlet, of the optical machine;

the fan is arranged at the bottom side of the optical machine and provided with an air inlet and an air outlet, a first heat dissipation channel is formed between the air inlet and the air inlet hole, the first heat dissipation device is located in the first heat dissipation channel, a second heat dissipation channel is formed between the air outlet and the air outlet hole, and the second heat dissipation device is located in the second heat dissipation channel.

2. The projector according to claim 1, further comprising a bracket, wherein the optical engine and the fan are respectively connected to two opposite sides of the bracket, the air inlet includes a first air inlet portion disposed on a side of the fan facing the optical engine, the bracket is provided with a vent, and at least a portion of the vent is opposite to the first air inlet portion.

3. The projector as claimed in claim 2, wherein the bracket includes a bottom plate and a side plate, the side plate is connected to an edge of a side of the bottom plate facing the air inlet hole, the bottom plate extends in a direction away from the optical engine, a first opening is provided on the bottom plate, a second opening is provided on the side plate, and the first opening and the second opening are communicated to form the ventilation opening.

4. The projector as claimed in claim 2, wherein the optical engine includes a housing, a light source disposed on a wall of the housing on a side thereof facing the air outlet, and an optical modulator disposed in a cavity of the housing and located on an outgoing light path of the light source, the first heat sink is in thermal communication with the cavity of the housing, and the second heat sink is in thermal communication with the light source.

5. The projector as claimed in claim 4, wherein the second heat sink includes a heat conductive substrate, a heat conductive pipe, and a heat dissipating fin, the heat conductive substrate is connected to the heat dissipating fin through the heat conductive pipe, the heat dissipating fin is located in the second heat dissipating channel, and the heat conductive substrate is connected to the light source in a heat conductive manner.

6. The projector as claimed in claim 5, wherein the second heat sink further comprises a wind shield, the wind shield is sleeved outside the heat dissipation fins, and one side of the wind shield facing away from the optical engine abuts against the inner wall of the housing.

7. The projector as claimed in claim 4, wherein the first heat sink further comprises a second heat sink, the first heat sink and the second heat sink are connected at an included angle, the first heat sink and the second heat sink are respectively disposed at two opposite sides of the housing, the second heat sink is disposed between the housing and the bracket, and the ventilation opening is disposed corresponding to the second heat sink.

8. The projector according to any one of claims 2-7, further comprising a main board, wherein the main board is disposed on a side of the fan away from the optical engine, and the air inlet further comprises a second air inlet portion disposed on a side of the fan facing the main board, and the second air inlet portion corresponds to the main board.

9. The projector of claim 8 further comprising a third heat sink in thermally conductive communication with the motherboard, the third heat sink disposed between the fan and the motherboard.

10. The projector according to claim 9, wherein a connecting column is disposed on a side of the bracket facing away from the optical engine, the main board is connected to the bracket through the connecting column, and a gap is formed between the main board and the bracket.

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