CN205787552U - Projection arrangement and heat radiation module thereof - Google Patents

Abstract

The utility model discloses a projection device and a heat dissipation module thereof. The heat dissipation module of the projection device comprises: a first heat sink arranged in an air flow channel and capable of dissipating heat from two or more light sources. In the heat dissipation module of the projection device disclosed in the utility model, since the first radiator is used to dissipate heat from two or more light sources, when the two or more light sources are switched, the first radiator that dissipates heat from the light sources can maintain No change, so there is no need to change the air inlet, that is, there is no need to close the air inlet, which effectively improves the convenience of operation and facilitates the use of the product; it also reduces the number of radiators, reduces the cost of heat dissipation, and reduces the occupied space; at the same time , if the two or more light sources work simultaneously, the number of wind currents can be reduced, thereby reducing heat dissipation noise.

Description

Projection device and cooling module thereof

technical field

The utility model relates to the technical field of heat dissipation of a projection device, in particular to a projection device and a heat dissipation module thereof.

Background technique

At present, the projection device has multiple light sources, and when the multiple light sources switch to work, it is necessary to dissipate heat from the working light sources. Specifically, as shown in FIG. 1, the projection device includes: a housing 11, a first light source 12, a second light source 14, a first radiator 13, and a second radiator 15 all located in the housing 11; wherein, the first A radiator 13 radiates heat to the first light source 12, and a second radiator 15 radiates heat to the second light source 14. The first light source 12 and the second light source 14 are two kinds of light sources with different effects. There is a lens opening 114, and the left and right side plates of the housing 11 are provided with: the second air inlet 112 of the second radiator 15, the first air inlet 111 of the first radiator 13, and the bottom plate of the housing 11 is provided with an outlet Tuyere 113.

The first light source 12 transfers heat to the first radiator 13 through heat conduction, and the second light source 14 transfers heat to the second radiator 15. The first radiator 13 and the second radiator 15 both pass the forced convection with the system air flow Take the heat out of the system, as shown by the arrows in Figure 1, the flow direction of the air flow in the system is the air inlet on both sides and the air outlet from the bottom. Specifically, when the first light source 12 is working, the air flow enters from the first air inlets 111 on the left and right sides. The casing 11 flows through the first radiator 13 and exchanges heat with the first radiator 13, and then the air flow is discharged from the air outlet 113 at the bottom; when the second light source 14 is working, the air flow is discharged from the second air inlet on the left and right 112 enters the casing 11 , flows through the second heat sink 15 and exchanges heat with the second heat sink 15 , and then the air flow is discharged from the air outlet 113 at the bottom.

In the above projection device, when one of the light sources is working, the air inlet of the other light source needs to be closed to ensure heat dissipation of the working light source, which is inconvenient in operation and not convenient for product use.

In addition, in the above-mentioned projection device, it is necessary to provide radiators corresponding to the light sources one by one, resulting in a large number of radiators, high heat dissipation costs, and a large space occupied; if at least two light sources work at the same time, there are two airflows, resulting in Heat dissipation noise is loud.

To sum up, how to dissipate heat from a projection device with at least two light sources to improve operational convenience and facilitate product use is an urgent problem to be solved by those skilled in the art.

Utility model content

In view of this, the object of the present invention is to provide a heat dissipation module for a projection device, which can dissipate heat for a projection device with at least two light sources, so as to improve the convenience of operation and facilitate the use of the product. Another object of the present invention is to provide a projection device with the above heat dissipation module.

In order to achieve the above object, the utility model provides the following technical solutions:

A heat dissipation module of a projection device, comprising: a first heat sink arranged in an air flow channel to dissipate heat from two or more light sources.

Preferably, there is one first radiator.

Preferably, the first heat sink includes: a liquid cooling tube through which a liquid cooling medium passes through the light source, and cooling fins provided on the outer wall of the liquid cooling tube.

Preferably, the first radiator includes two connected split bodies, the liquid cooling pipes of the two split bodies are in communication, and there is a gap between the two split bodies for accommodating the light source.

Preferably, the heat dissipation module of the above-mentioned projection device further includes: a fan arranged in the air flow channel, and in the air flow channel, the fan is close to the air outlet of the air flow channel.

Preferably, at least two of the light sources have different luminances, and/or at least two of the light sources have different light colors.

Based on the heat dissipation module of the projection device provided above, the utility model also provides a projection device, which includes: a housing, at least two light sources, and a heat dissipation module for dissipating heat from the light sources; wherein, the The heat dissipation module is the heat dissipation module of the projection device described in any one of the above, and the air inlet and air outlet of the air flow channel are both arranged on the housing.

Preferably, the air inlet leading air to the first radiator is opposite to the first radiator.

Preferably, the axis of the air inlet of the air flow channel is perpendicular to the axis of the air outlet of the air flow channel.

Preferably, there are two light sources and one first heat sink, and the first heat sink dissipates heat to the two light sources.

The heat dissipation principle of the heat dissipation module of the projection device provided by the utility model is as follows: start the fan, the first heat sink absorbs the heat of the light source, realizes heat dissipation to the light source, and the wind flowing through the air flow channel flows through the first heat sink and is connected with the first heat sink. Heat exchange is performed, and then the wind is discharged through the air outlet of the air flow channel.

In the heat dissipation module of the projection device provided by the utility model, since the first radiator is used to dissipate heat from more than two light sources, when the two light sources are switched to work, the first radiator to dissipate heat from the light sources can maintain No change, so there is no need to change the air inlet, that is, there is no need to close the air inlet, which effectively improves the convenience of operation and facilitates the use of the product.

At the same time, in the heat dissipation module of the projection device provided by the utility model, since the first radiator is used to dissipate heat for more than two light sources, the number of radiators is reduced, the cost of heat dissipation is reduced, and the occupied space is also reduced; and , if more than two light sources work at the same time, the number of wind currents can be reduced, thereby reducing heat dissipation noise.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description It is only an embodiment of the utility model, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

FIG. 1 is an exploded view of a projection device provided by the prior art;

FIG. 2 is a schematic structural diagram of a heat dissipation module of a projection device provided by an embodiment of the present invention.

In Figure 1-2 above:

11 is the casing, 111 is the first air inlet, 112 is the second air inlet, 113 is the air outlet, 114 is the lens opening, 12 is the first light source, 13 is the first radiator, 14 is the second light source, 15 is The second heat sink, 21 is the first light source, 22 is the first heat sink, 221 is the liquid cooling tube, 222 is the cooling fin, 23 is the second light source, 24 is the lens, 25 is the fan.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The heat dissipation module of the projection device provided by the embodiment of the present invention includes: a first heat sink 22 arranged in the air flow channel and dissipating heat from two or more light sources.

It can be understood that more than two includes two and a number greater than two. The air-cooling channel is for air circulation. The heat dissipation module of the above-mentioned projection device may further include a second heat sink, and the second heat sink is only used for heat dissipation of one light source.

The heat dissipation principle of the heat dissipation module of the above-mentioned projection device is as follows: start the fan 25, the first heat sink 22 absorbs the heat of the light source, and realizes heat dissipation to the light source, and the wind flowing through the air flow channel flows through the first heat sink 22 and connects with the first heat sink 22. Heat exchange is performed, and then the wind is discharged through the air outlet of the air flow channel. If more than two light sources work simultaneously, the first radiator 22 dissipates heat for the two or more light sources at the same time; if more than two light sources do not work simultaneously, the first radiator 22 only dissipates heat for the working light sources.

In the heat dissipation module of the projection device provided by the embodiment of the utility model, since the first heat sink 22 is used to dissipate heat from two or more light sources, when the two or more light sources are switched to work, the first heat sink to dissipate heat from the light sources The radiator 22 can remain unchanged, so that there is no need to change the air inlet, that is, it is not necessary to close the air inlet, which effectively improves the convenience of operation and facilitates the use of the product.

At the same time, in the heat dissipation module of the projection device provided by the embodiment of the present invention, since the first heat sink 22 is used to dissipate heat for more than two light sources, the number of heat sinks is reduced, the cost of heat dissipation is reduced, and the cost of heat dissipation is also reduced. Take up space, specifically, the volume of the first radiator 22 in Figure 2 is less than the sum of the volumes of the first radiator 13 and the second radiator 15 in Figure 1; number, thereby reducing heat dissipation noise.

At the same time, in the heat dissipation module of the projection device provided by the embodiment of the present utility model, among the two or more light sources that the first radiator 22 dissipates heat, when any one of the light sources is working, the first radiator 22 of the same size is used to dissipate heat. , effectively improving the heat dissipation efficiency.

In the heat dissipation module of the above-mentioned projection device, the first heat sink 22 may be one, or two or three. It can be understood that when there are two first radiators 22, one first radiator 22 dissipates heat for more than two light sources, and the other first radiator 22 also dissipates heat for more than two light sources. In order to maximize the convenience of operation, it is preferable to select only one first radiator 22 , as shown in FIG. 2 . At this time, all the light sources use the same first heat sink 22 for heat dissipation, and there is no need to consider closing the air inlet when the light source is switched, which improves the convenience of operation to the greatest extent.

Preferably, the above-mentioned first radiator 22 includes: a liquid cooling tube 221 through which the liquid cooling medium circulates and passes through the light source, and cooling fins 222 provided on the outer wall of the liquid cooling tube 221 .

In the above-mentioned first radiator 22, the liquid cooling tube 221 runs through the cooling fins 222, and the orientation of the liquid cooling tube 221 can be designed according to actual needs, such as serpentine orientation, U-shaped orientation, etc. No limit. The size and shape of the cooling fins 222 are designed according to actual needs, and will not be described in detail herein.

Of course, the above-mentioned first heat sink 22 can also be selected as other structures. For example, the first heat sink 22 includes a heat sink, and the heat sink is directly in contact with the light source, that is, the heat sink is used alone to dissipate heat from the light source; Contact with light source.

In order to improve the heat dissipation performance of the first radiator 22, the above-mentioned first radiator 22 includes two split bodies, the liquid cooling tubes 221 of the two split bodies are connected, and there is a gap for accommodating the light source between the two split bodies, as shown in Figure 2 shown. Specifically, the liquid-cooled pipes 221 of the two splits are communicated through connecting pipes. Specifically, the two splits are respectively denoted as the first split and the second split. The outlet of the liquid-cooled tube of the body is connected, and the outlet of the liquid-cooled tube of the first split is connected with the inlet of the liquid-cooled tube of the second split.

If the above-mentioned light sources are two, respectively the first light source 21 and the second light source 23, the second light source 23 is located between the two split bodies, the first light source 21 is also located between the two split bodies and the first light source 21 is located at the second split body. A heat sink 22 has an end remote from the lens 24 . The inlet of the liquid-cooled tube of the first split communicates with the outlet of the liquid-cooled tube of the second split through a light source, and the outlet of the liquid-cooled tube of the first split communicates with the inlet of the liquid-cooled tube of the second split through another light source.

Certainly, when the above-mentioned first heat sink 22 has other structures, the first heat sink 22 can also be selected as two split bodies. Heat sink, two split heat sinks are thermally connected.

In order to enhance the heat dissipation effect, the heat dissipation module of the projection device further includes: a fan 25 arranged in the air flow channel. Specifically, along the flow direction of the wind, the first radiator 22 is located upstream of the fan 25 . Through the action of the fan 25 , the flow and velocity of the air in the air-cooling channel are accelerated, thereby increasing the heat exchange between the wind and the first radiator 22 , and further improving the heat dissipation efficiency of the first radiator 22 .

Further, in the air flow channel, the fan 25 is close to the air outlet of the air flow channel, so as to facilitate the flow of wind in the air flow channel.

In the heat dissipation module of the above-mentioned projection device, at least two light sources have different luminances, and/or at least two light sources have different light colors. Specifically, if there are two light sources, the brightness of the two light sources is different, that is, the brightness of one light source is greater than the brightness of the other light source; or the light colors of the two light sources are different, for example, the light color of one light source is red, and the light color of the other The light color of one light source is white; or the light color of two light sources is different and the light intensity is also different. If there are four light sources, two of the light sources can be selected to have different brightness, and the other two light sources can have different light colors; four light sources can also be selected to have different light colors, or the four light sources have different brightness.

In the actual use process, according to the required projection effect, select the working state of each light source, and all light sources can work at the same time, and some light sources can also work at the same time. Taking two light sources as an example, there are times when two light sources are working and not working at the same time, and there are also times when one light source is working and the other light source is not working.

In the heat dissipation module of the above-mentioned projection device, at least two light sources can also be selected to have different luminous effects, which are not limited to light color and luminance.

Based on the heat dissipation module of the projection device provided in the above embodiments, the embodiment of the present invention also provides a projection device, which includes: a housing, at least two light sources, and a heat dissipation module for dissipating heat from the light sources; wherein, The heat dissipation module is the heat dissipation module of the projection device described in the above embodiments, and the air inlet and air outlet of the air flow channel are both arranged on the casing.

Since the heat dissipation module of the above-mentioned projection device has the above-mentioned technical effects, and the above-mentioned projection device has the heat dissipation module of the above-mentioned projection device, the above-mentioned projection device also has corresponding technical effects, which will not be repeated here.

In the above projection device, the fan 25 is arranged in the casing, preferably, the fan 25 is arranged at the air outlet.

The air inlet of the air flow channel leads air to the first radiator. In order to facilitate air introduction, the air inlet for introducing air to the first radiator 22 is preferably selected to be opposite to the first radiator 22 . It can be understood that when there are two first radiators 22, there are at least two air inlets. Taking two air inlets as an example, one air inlet is opposite to one first radiator 22, and the other air inlet is opposite to the other. A first radiator 22 is opposite.

It should be noted that, when the above-mentioned projection device further includes a second radiator, the air flow channel has an air inlet for guiding air to the second radiator.

The air inlet opposite to the same first radiator 22 can be one, or two or more, that is, the number of air inlets is not less than the number of the first radiator 22 .

In order to facilitate installation and air intake, there are two air inlets opposite to the same first radiator 22 , and the two air inlets are respectively located on both sides of the first radiator 22 . Specifically, when the first radiator 22 has two split bodies, the two air inlets are respectively the first air inlet and the second air inlet, the two split bodies are respectively the first split body and the second split body, and the first The air inlet is located on the side of the first split body away from the second split body, and the second air inlet is located on the side of the second split body away from the first split body. In this way, the amount of air intake is effectively increased, thereby improving the heat dissipation of the first radiator 22 .

In order to increase the amount of heat exchange between the wind and the first radiator 22 , the axis of the air inlet of the air flow channel is perpendicular to the axis of the air outlet of the air flow channel.

Further, the air inlet is located on the side of the first radiator 22 away from the light source. Of course, the air inlet can also be selected to be located at the end of the first radiator 22 away from the lens 24 .

In the heat dissipation module of the above-mentioned projection device, the axis of the air inlet and the axis of the air outlet can also be selected to be parallel, which is not limited to the above-mentioned embodiment.

In the above-mentioned projection device, the light source is located in the casing, and the number of the first heat sink 22 needs to be determined according to the total number of light sources and the number of light sources 22 corresponding to one first heat sink 22 . When there are two light sources, there is one first radiator 22, and the first radiator 22 can dissipate heat for the two light sources. Specifically, as shown in FIG. 2 , the two light sources are a first light source 21 and a second light source 23 respectively, and a first heat sink 22 dissipates heat for the first light source 21 and the second light source 23 . At this time, when the first light source 21 and the second light source 23 work differently from each other, the air inlet is always open.

Further, the illumination effects of the two light sources are different. Specifically, the light colors of the two light sources are different, the luminance of the two light sources is different, or the light intensity of the two light sources is different.

Of course, the number of light sources can also be selected as other values, such as three or four light sources, and the number of light sources can be set according to actual needs, which is not limited in the embodiment of the present invention.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. the heat radiation module of a projection arrangement, it is characterised in that including: be used for being arranged in airflow channel, and the first radiator (22) that plural light source is dispelled the heat.

The heat radiation module of projection arrangement the most according to claim 1, it is characterised in that described first radiator (22) is one.

The heat radiation module of projection arrangement the most according to claim 1, it is characterized in that, described first radiator (22) including: for liquid cooling medium circulation and for the cold pipe of the liquid (221) through described light source, is located at the radiating fin (222) of described liquid cold pipe (221) outer wall.

The heat radiation module of projection arrangement the most according to claim 3, it is characterized in that, described first radiator (22) includes two splits, the cold pipe of liquid (221) connection of two described splits, and has the gap accommodating described light source between two described splits.

The heat radiation module of projection arrangement the most according to claim 1, it is characterised in that also include: the fan (25) being located in described airflow channel, described in described airflow channel, fan (25) is near the air outlet of described airflow channel.

The heat radiation module of projection arrangement the most according to claim 1, it is characterised in that the photochromic difference of light source described in the brightness difference of light source described at least two and/or at least two.

7. a projection arrangement, including: housing, at least two light source, the heat radiation module that described light source is dispelled the heat；It is characterized in that, described heat radiation module is the heat radiation module of the projection arrangement in claim 1-6 described in any one, and the air inlet of described airflow channel and air outlet are all located at described housing.

Projection arrangement the most according to claim 7, it is characterised in that relative with described first radiator (22) to the described air inlet of described first radiator (22) air inducing.

Projection arrangement the most according to claim 7, it is characterised in that the air inlet axis of described airflow channel is perpendicular to the air outlet axis of described airflow channel.

Projection arrangement the most according to claim 7, it is characterised in that described light source is two, described first radiator (22) is one, and two described light sources are dispelled the heat by described first radiator (22).