CN216286130U - Curtain and projection device - Google Patents

Abstract

The utility model relates to a curtain and a projection device, wherein the curtain is used for radiating heat of a projector, and comprises: the bearing piece is used for displaying the content projected by the projector; the heat exchange pipeline is roundly arranged on the bearing piece and used for conveying cooling liquid, and the heat exchange pipeline is used for being connected with the projector; and the water pump is arranged on the heat exchange pipeline in series and is used for driving the cooling liquid to flow. The heat exchange pipeline of the curtain is connected with the projector, and the cooling liquid conveyed in the heat exchange pipeline can absorb the heat emitted by the projector; and because the heat exchange pipeline is roundly arranged on the bearing part, the cooling liquid in the heat exchange pipeline on the bearing part can exchange heat with the outside through the heat exchange pipeline and the bearing part in the flowing process of the cooling liquid. Because the cooling liquid is adopted to dissipate heat of the light machine, no noise is generated. The projection device comprises the curtain, and the noise generated when the projector radiates can be greatly reduced.

Description

Curtain and projection device

Technical Field

The utility model relates to the technical field of projection display, in particular to a curtain and a projection device.

Background

The projection device is a device which projects images or videos onto a curtain by using a projector so as to be conveniently watched by a user. With the development of projector technology, projectors gradually develop toward small size and high brightness. Heat dissipation is a key issue in both reducing the projector volume and increasing the brightness of the light output. That is, the heat dissipation problem of the projector is one of the key factors that restrict the development of the projector.

In the prior art, a fan is usually arranged inside a projector, and air is blown by the fan to accelerate the flow speed of air on the surface of an optical machine of the projector, so that the heat of the projector is dissipated.

Based on the requirements of small size and high brightness of the projector at present, the fan cooling mode is adopted to continuously enhance the blowing intensity of the fan so as to adapt to the projector with small size and high brightness. However, this results in a continuous increase in the rotational speed of the fan, which on the one hand causes the fan itself to generate heat by friction with the air when it is rotating; on the other hand, a fan with high rotation speed can cause large noise, and the user experience is influenced.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is desirable to provide a curtain and a projection apparatus for solving the heat dissipation problem of a projector.

A curtain for dissipating heat from a projector, the curtain comprising:

the bearing piece is used for displaying the content projected by the projector;

the heat exchange pipeline is roundly arranged on the bearing piece and used for conveying cooling liquid, and the heat exchange pipeline is used for being connected with the projector;

and the water pump is arranged on the heat exchange pipeline in series and is used for driving the cooling liquid to flow.

In one embodiment, the carrier includes a display side for displaying the projection content and a back side of the carrier facing away from the display side, and the heat exchange pipeline is roundly disposed on the back side.

In one embodiment, the heat exchange pipelines are distributed on the back side in an S shape; or

The heat exchange pipelines are distributed on the back side in a Z shape; or

The heat exchange pipelines are distributed on the back side in a W shape; or

The heat exchange pipelines are distributed on the back side in a spiral line shape.

In one embodiment, the heat exchange pipeline is circuitously arranged inside the bearing part.

In one embodiment, the heat exchange pipeline comprises a plurality of pipe sections which are connected end to end in sequence, and a plurality of the pipe sections which are not directly connected are distributed at intervals.

In one embodiment, the spacing between the plurality of indirectly connected tube segments is greater than 5 times the diameter of the heat exchange tube and less than 15 times the diameter of the heat exchange tube.

In one embodiment, the distance between the peripherally-located tube sections in the heat exchange pipelines and the outer frame of the curtain is less than 70 mm.

In one embodiment, the heat exchange pipeline includes a main pipeline and at least two branch pipelines, the at least two branch pipelines are both communicated with the main pipeline, the pipe diameter of the main pipeline is greater than that of any one of the branch pipelines, and the at least two branch pipelines are arranged on the bearing member at uniform intervals.

In one embodiment, the heat exchange pipeline is arranged around the outer frame of the bearing part.

A projection device, comprising:

the curtain in the above embodiment;

the projector is arranged opposite to the curtain, and the heat exchange pipeline is partially and roundly arranged on the projector.

The heat exchange pipeline of the curtain is connected with the projector, and the cooling liquid conveyed in the heat exchange pipeline can absorb the heat emitted by the projector; and because the heat exchange pipeline is roundly arranged on the bearing part, the cooling liquid in the heat exchange pipeline on the bearing part can exchange heat with the outside through the pipe wall of the heat exchange pipeline or through the pipe wall of the heat exchange pipeline and the bearing part in the flowing process of the cooling liquid. Because the cooling liquid is adopted to dissipate heat of the light machine, no noise is generated. So, realized the heat dissipation to the ray apparatus to because the carrier locates on the curtain, not occupy extra space. In other words, through locate heat transfer pipeline and reasonable the space that has utilized on the carrier and the bearing capacity that holds carrier on holding carrier, can save the shared space of projection arrangement including above-mentioned curtain, the installation of above-mentioned projection arrangement of being convenient for.

Drawings

Fig. 1 is a schematic structural diagram of a projection apparatus according to an embodiment;

FIG. 2 is a schematic diagram of a curtain in the projection apparatus shown in FIG. 1;

fig. 3 is a partially enlarged view of a portion a in fig. 2.

Reference numerals: 10. a projection device; 100. a curtain; 110. a carrier; 111. a back side; 120. a heat exchange line; 121. a pipe section; 122. a heat dissipation pipe section; 123. a heat absorption pipe section; 200. a projector.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "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 are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

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 such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, 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 connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. 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. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a projection apparatus 10 according to an embodiment of the utility model, and fig. 2 is a schematic structural diagram of a curtain 100 in the projection apparatus 10 shown in fig. 1. An embodiment of the utility model provides a projection apparatus 10, which includes a curtain 100 and a projector 200. The projector 200 is disposed opposite to the curtain 100. The curtain 100 is used for displaying the content projected by the projector 200, and the curtain 100 can dissipate the heat of the projector 200.

Referring to fig. 2, in one embodiment, the curtain 100 includes a carrier 110, a heat exchange pipeline 120, and a water pump (not shown, the same applies below). The carrier 110 is used for displaying the content projected by the projector 200. The heat exchange tube 120 is disposed on the carrier 110 to transport the cooling liquid, and the heat exchange tube 120 is used to connect with the projector 200. The water pump is connected in series to the heat exchange pipeline 120, and the water pump is used for driving the coolant to flow. In the curtain 100, the heat exchange pipeline 120 is connected to the projector 200, and the cooling liquid conveyed through the heat exchange pipeline 120 can absorb heat emitted from the projector 200. Since the heat exchange pipeline 120 is disposed on the supporting member 110, the cooling liquid in the heat exchange pipeline 120 on the supporting member 110 can exchange heat with the outside through the pipe wall of the heat exchange pipeline 120, or through the pipe wall of the heat exchange pipeline 120 and the supporting member 110 during the flowing process. Because the cooling liquid is adopted to dissipate heat of the light machine, no noise is generated. So, realized the heat dissipation to the ray apparatus. Moreover, since the heat exchange pipeline 120 is disposed on the carrier 110, no additional space is occupied. In other words, by disposing the heat exchange pipeline 120 on the carrier 110, the space on the carrier 110 and the carrying capacity of the carrier 110 are reasonably utilized, so that the space occupied by the projection apparatus 10 including the curtain 100 can be saved, and the installation of the projection apparatus 10 is facilitated.

Further, because the heat exchange pipeline 120 is roundly disposed on the bearing member 110, the length of the heat exchange pipeline 120 disposed on the bearing member 110 with the same size is long enough, and the coolant flows through the flow path long enough, so that heat exchange can be better and more sufficiently performed with the external environment through the pipe wall of the heat exchange pipeline 120, thereby achieving heat dissipation. In addition, the circuitous heat exchange pipeline 120 can make the flowing time of the cooling liquid longer, improve the heat dissipation time of the cooling liquid, and further enhance the heat dissipation effect of the heat exchange pipeline 120.

In one embodiment, the water pump may be secured to a wall or other fixed structure in conjunction with the carrier 110. Alternatively, the water pump may be provided on the projector 200. It should be understood that the water pump is only required to be arranged on the heat exchange pipeline 120 in series to drive the coolant to flow, and the arrangement position of the water pump may be adjusted according to factors such as actual working environment, and is not limited herein.

Referring to fig. 3 in conjunction with fig. 1 and 2, in various embodiments, it can be appreciated that the heat exchange circuit 120 includes a heat dissipation tube section 122 and a heat absorption tube section 123. The heat dissipating pipe section 122 is communicated with the heat absorbing pipe section 123, and the ends of the heat dissipating pipe section 122 and the heat absorbing pipe section 123 far away from each other are connected to the projector 200. The heat dissipation tube section 122 is used to transport the cooling fluid that has exchanged heat with the projector 200, but does not adequately dissipate the heat. The heat absorption pipe section 123 is used to transport the cooling liquid that has not been heat exchanged with the projector 200 or has been completed with heat dissipation. It should be understood that the above description of the radiating pipe section 122 and the heat absorbing pipe section 123 is only for the convenience of understanding the structure and function of the heat exchanging pipeline 120, and does not limit the obvious and clear boundary point between the radiating pipe section 122 and the heat absorbing pipe section 123, since the radiating process of the cooling liquid is a continuous process.

In one embodiment, heat exchange circuit 120 is partially circuitously disposed on projector 200. In connection with the above embodiments, it will be appreciated that portions of the heat exchange circuit 120 are referred to herein as heat dissipation tube segments 122. Since the cooling fluid of the heat dissipation pipe section 122 has just completed the heat exchange with the projector 200, the temperature of the cooling fluid in the heat dissipation pipe section 122 is relatively high. Then, the heat dissipation pipe section 122 is arranged on the projector 200 in a circuitous manner, so that the cooling liquid with relatively high temperature can exchange heat with the external environment more quickly and sufficiently, and the heat dissipation effect of the heat exchange pipeline 120 is improved.

Referring to fig. 2, in an embodiment, the carrier 110 includes a display side (not shown, the same applies below) for displaying the projection content and a back side 111 of the carrier 110 facing away from the display side. A heat exchange line 120 is provided on the back side 111 in a circuitous manner. By providing the heat exchange tube 120 on the back side 111 facing away from the display side, it is avoided that the heat exchange tube 120 blocks or affects the projection content displayed on the display side. Also, since the back side 111 facing away from the display side in the prior art is typically only used for holding the carrier 110 in place with a wall or other fixed structure. In the present embodiment, compared to the prior art, the heat exchange pipeline 120 is disposed on the back side 111 of the carrier 110, so that the space of the back side 111 and the carrying capacity of the carrier 110 can be fully utilized. The projection device 10 including the curtain 100 is more compact and convenient to install.

Referring again to fig. 2, in one embodiment, the heat exchange tubes 120 are distributed on the back side 111 in an S-shape; or the heat exchange pipes 120 are distributed on the back side 111 in a zigzag shape; or the heat exchange pipes 120 are distributed on the back side 111 in a W shape; or the heat exchange pipes 120 are distributed on the back side 111 in a spiral shape. So set up, can improve the mobile stroke of coolant liquid to the coolant liquid heat dissipation can improve heat transfer pipeline 120's radiating effect. It should be understood that the heat exchange pipes 120 may be disposed in other forms distributed on the back side 111, and the distribution form of the heat exchange pipes 120 may be adaptively adjusted according to the installation manner of the carrier 110, the structural limitation of the wall body, or other requirements, and is not limited herein.

In one embodiment, the heat exchange line 120 is circuitously disposed inside the carrier 110. In other words, the carrier 110 has a circuitous heat exchange pipeline 120. By circuitously disposing the heat exchange pipeline 120 inside the carrier 110, the space occupied by the heat exchange pipeline 120 can be further reduced. Moreover, since the supporting member 110 is used as a component for displaying projection content, and the contact area between the supporting member 110 and the external environment is large, the heat exchange pipeline 120 is circuitously disposed inside the supporting member 110, and the heat can be conducted to the supporting member 110 through the heat exchange pipeline 120 by fully utilizing the characteristic of large contact area between the supporting member 110 and the external environment, so as to improve the heat dissipation effect of the curtain 100. It should be understood that in the present embodiment, the carrier 110 is a heat conductive material, and the carrier 110 may be provided as a good conductor of heat.

Further, according to actual requirements, a heat insulation layer (not shown, the same applies below) may be disposed on the display side of the carrier 110 to prevent the heat dissipation of the heat exchange pipeline 120 from scalding the user or affecting the user experience.

Referring again to fig. 2, in one embodiment, the heat exchange pipeline 120 includes a plurality of pipe segments 121 connected end to end in sequence, and the plurality of pipe segments 121 that are not directly connected are spaced apart. Specifically, since the heat exchange pipeline 120 is disposed on the back side 111 of the carrier 110 in a winding manner, a plurality of indirectly connected tube segments 121 are disposed at intervals so as to reasonably distribute the area of each tube segment 121 contacting with the external environment, so as to sufficiently exchange heat with the external environment. Therefore, the influence of different tube segments 121 on the heat exchange pipeline 120 on the respective heat dissipation effects can be avoided. It will be appreciated that the spacing between the plurality of indirectly connected tube segments 121 in the various embodiments may be marked with reference to FIG. 2: and M.

In one embodiment, the plurality of indirectly connected tube segments 121 are spaced apart by more than 5 times the diameter of heat exchange tubes 120 and less than 15 times the diameter of heat exchange tubes 120. Specifically, the size of the gap may be selected according to the power and heat dissipation requirements of the projector 200. The interval between the pipe sections 121 which are not directly connected is set to be more than 5 times of the diameter of the heat exchange pipeline 120, so that sufficient heat dissipation space can be fully ensured for any pipe section 121 on the heat exchange pipeline 120, and the heat exchange pipeline 120 can fully dissipate heat. In addition, the phenomenon that the carrier 110 is excessively loaded due to the excessively dense heat exchange pipelines 120 can be avoided, so that safety accidents such as dropping of the carrier 110 can be prevented. The distance between the plurality of non-directly connected tube segments 121 is less than 5 times the diameter of the heat exchange pipeline 120, so that the space on the back side 111 of the carrier 110 can be fully utilized, and the heat dissipation capacity and the heat dissipation effect of the curtain 100 are improved. It should be understood that when the diameters of the plurality of tube segments 121 are equal, the diameter of the heat exchange line 120 is equal to the diameter of each tube segment 121; when the diameters of the plurality of tube segments 121 are not equal, the diameter of the heat exchange tube 120 is equal to the average value of the diameters of the tube segments 121.

Referring to fig. 2, the distance between the peripheral pipe segments 121 of the heat exchange pipeline 120 and the outer frame of the curtain 100 is less than 70 mm. Specifically, for example, the tube segments 121 located at the periphery of the heat exchange tubes 120 may be set to be 50 mm away from the outer frame of the curtain 100. With this arrangement, the space on the back side 111 of the carrier 110 can be fully utilized. Moreover, when the heat exchange pipeline 120 is disposed inside the carrier 110, the distance between the pipe segment 121 located at the periphery of the heat exchange pipeline 120 and the outer frame of the curtain 100 is less than 70 mm, so that the cooling liquid in the heat exchange pipeline 120 can fully flow through each position of the carrier 110. Thus, the cooling fluid can sufficiently exchange heat with each area on the curtain 100. Thereby improving the heat dissipation effect of the curtain 100. The distance between the peripheral pipe segment 121 of the heat exchange pipeline 120 and the outer frame of the curtain 100 can be referred to as the mark in fig. 2: K. it should be understood that the distance between the pipe segments 121 located at the periphery in the heat exchange pipeline 120 and the outer frame of the curtain 100 may also be set to 80mm, 90mm, and 100mm according to the power of the optical engine in the projector 200, the pipe diameter of the heat exchange pipeline 120, and other relevant factors, and is not limited herein.

In one embodiment, the heat exchange pipeline 120 includes a main pipeline (not shown, the same below), and at least two branch pipelines (not shown, the same below), the at least two branch pipelines are both communicated with the main pipeline, the diameter of the main pipeline is larger than that of any one of the branch pipelines, and the at least two branch pipelines are uniformly spaced on the carrier 110. It can be understood that, for delivering the same flow rate of cooling liquid, since the diameters of the branch pipes are smaller than those of the main pipes, the sum of the surface areas of the branch pipes is larger than that of the main pipes, so that the area of the heat exchange pipe 120 contacting the outside is larger, and the heat dissipation of the heat exchange pipe 120 is more convenient. In other words, for the same flow of coolant, compared with the main pipeline with a relatively large pipe diameter, when a plurality of branch pipelines with relatively small pipe diameters are used for conveying the coolant, more coolant can exchange heat with the external environment through the pipe wall, so that the heat dissipation efficiency is improved. Specifically, the diameters of the branch pipes may be the same, or the branch pipes may have different diameters according to actual needs.

In one embodiment, the main conduit is connected between the projector 200 and the carrier 110. The branch lines are connected to the main line and are provided on the carrier 110 in a circuitous manner. That is, in the present embodiment, the cooling liquid can flow between the projector 200 and the curtain 100 through the main pipeline, which facilitates installation and arrangement of the heat exchange pipeline 120. The main pipeline on the carrier 110 may be divided into at least two branch pipelines to improve the heat dissipation effect of the cooling liquid.

In one embodiment, the heat exchange tubes 120 may also be disposed around the outer frame of the carrier 110. Specifically, for some projection apparatuses 10 in which the supporting member 110 is embedded in the wall, the heat exchange pipeline 120 may be disposed on the outer frame of the supporting member 110, so that the heat exchange pipeline 120 exchanges heat with the external environment, and the heat is prevented from being dissipated. It should be understood that the arrangement of the heat exchange pipeline 120 around the outer frame of the carrier 110 can be used in other situations, and is not limited herein and can be set according to actual requirements.

In one embodiment, heat exchange line 120 is a metal piece. Specifically, the heat exchange pipeline 120 may be a pipeline made of copper, and the heat dissipation of the heat exchange pipeline 120 may be more convenient due to the good heat conductivity of copper.

It should be understood that, in some embodiments, the heat exchange pipeline 120 may also be made of other metal materials or other non-metal materials, and specifically, for example, the heat exchange pipeline 120 may also be a colloid pipe, which is not limited herein and may be set according to actual requirements.

In one embodiment, the curtain 100 further comprises a condensing structure, and the condensing structure is serially connected to the heat exchange pipeline 120. In particular, for some projection devices 10 with large heat dissipation capacity of the projector 200, due to space constraints, it may not be possible to provide enough heat exchange pipes 120 to achieve sufficient heat dissipation of the cooling liquid. In the working environment, the condensing structure may be disposed to assist the heat exchange pipeline 120 to dissipate heat, so that the curtain 100 meets the heat dissipation requirement of the projector 200. The condensation structure may be, for example, a condensation structure including a semiconductor refrigeration sheet or other forms of condensation structures, and is not limited herein and may be set according to actual requirements.

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 express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A curtain, wherein the curtain is configured to dissipate heat from a projector, the curtain comprising:

the bearing piece is used for displaying the content projected by the projector;

the heat exchange pipeline is roundly arranged on the bearing piece and used for conveying cooling liquid, and the heat exchange pipeline is used for being connected with the projector;

and the water pump is arranged on the heat exchange pipeline in series and is used for driving the cooling liquid to flow.

2. The curtain as recited in claim 1, wherein the carrier comprises a display side for displaying the projected content and a back side of the carrier facing away from the display side, the heat exchange tubes being circuitously disposed on the back side.

3. The curtain as recited in claim 2, wherein the heat exchange tubes are distributed on the back side in an S-shape; or

The heat exchange pipelines are distributed on the back side in a Z shape; or

The heat exchange pipelines are distributed on the back side in a W shape; or

The heat exchange pipelines are distributed on the back side in a spiral line shape.

4. The curtain of claim 1, wherein the heat exchange tubes are circuitously disposed within the carrier.

5. Curtain as claimed in claim 2 or 4, wherein the heat exchange line comprises a plurality of tube sections connected end to end in sequence, the plurality of tube sections not directly connected being spaced apart.

6. The curtain of claim 5, wherein a plurality of the indirectly connected tube segments are spaced apart by more than 5 times a diameter of the heat exchange tubes and less than 15 times the diameter of the heat exchange tubes.

7. The curtain of claim 5, wherein the peripherally located tube segments of the heat exchange tubes are less than 70 mm from an outer frame of the curtain.

8. The curtain as recited in claim 5, wherein the heat exchange pipeline comprises a main pipeline and at least two branch pipelines, the at least two branch pipelines are both communicated with the main pipeline, the diameter of the main pipeline is larger than that of any one of the branch pipelines, and the at least two branch pipelines are arranged on the bearing member at uniform intervals.

9. The curtain of claim 1, wherein the heat exchange tubes are disposed around an outer frame of the carrier.

10. A projection device, comprising:

curtain as claimed in any one of claims 1 to 9;

the projector is arranged opposite to the curtain, and the heat exchange pipeline is partially and roundly arranged on the projector.

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