CN219124263U - An optical engine internal circulation dust-free heat dissipation structure - Google Patents

Abstract

The utility model discloses an optical engine internal circulation dust-free heat dissipation structure, which comprises a shell and a first Fresnel lens, a TFT, heat insulation glass and a second Fresnel lens which are positioned in the shell from top to bottom in sequence; a first air channel is formed between the first Fresnel lens and the TFT, a second air channel is formed between the TFT and the heat-insulating glass, a third air channel is formed between the heat-insulating glass and the second Fresnel lens, and the heat dissipation structure further comprises at least one blower and at least one radiator; the air blower is arranged at the air inlet of the first air duct, the radiator comprises radiating fins, the radiating fins consist of inner sheets and outer sheets, and the inner sheets are provided with ventilation gaps; the inner piece is arranged at the air inlet of the blower and communicated with the second air duct and the third air duct, and the outer piece is arranged at the outer side of the shell. According to the utility model, the TFT and the heat-insulating glass in the heat-radiating structure are radiated in an internal air quantity circulation mode, so that the influence of external dust on display and projection quality is avoided.

Description

Translated fromChinese

一种光学引擎内循环无尘散热结构An optical engine internal circulation dust-free heat dissipation structure

技术领域technical field

本实用新型涉及投影设备技术，尤其涉及一种光学引擎内循环无尘散热结构。The utility model relates to projection equipment technology, in particular to an optical engine internal circulation dust-free heat dissipation structure.

背景技术Background technique

目前，市场上的投影装置或光学引擎的散热系统通常为内部和外界相连通，将外界的冷风送入投影装置的内部，以进行空气对流，但是将外界的空气送入投影装置的内部后，会在TFT板上积累粉尘，并且TFT板设置在内部通过不易维护。At present, the heat dissipation system of the projection device or optical engine on the market is usually connected to the outside, and the cold air from the outside is sent into the inside of the projection device for air convection, but after the outside air is sent into the inside of the projection device, Dust will accumulate on the TFT board, and the TFT board is arranged inside and is difficult to maintain.

因此，需要设置一款内部循环散热的投影装置，以避免外部空气中的粉尘在TFT板上堆积。Therefore, it is necessary to set up a projection device with internal circulation and heat dissipation to avoid dust in the external air from accumulating on the TFT board.

实用新型内容Utility model content

本实用新型提供了一种光学引擎内循环无尘散热结构，旨在解决上述问题。The utility model provides a dust-free heat dissipation structure for the inner circulation of an optical engine, aiming at solving the above-mentioned problems.

根据本申请实施例提供的一种光学引擎内循环无尘散热结构，包括：壳体以及位于壳体内，且由上到下依次设置的第一菲涅尔透镜、TFT、隔热玻璃和第二菲涅尔透镜；According to an embodiment of the present application, a dust-free heat dissipation structure for internal circulation of an optical engine includes: a casing and a first Fresnel lens, a TFT, a heat insulating glass and a second Fresnel lens;

其中，所述第一菲涅尔透镜和所述TFT之间形成第一风道，所述TFT和所述隔热玻璃之间形成第二风道，所述第一风道与所述第二风道彼此导通；所述散热结构还包括至少一个鼓风机和至少一个散热器；Wherein, a first air channel is formed between the first Fresnel lens and the TFT, a second air channel is formed between the TFT and the heat insulating glass, and the first air channel and the second The air ducts are connected to each other; the heat dissipation structure also includes at least one blower and at least one radiator;

所述鼓风机设置于所述第一风道的入风口，所述散热器包括散热鳍，所述散热鳍由内片和外片组成，所述内片设置有通风的缝隙；所述内片设置于所述鼓风机的进风口且与所述第二风道导通，所述外片设置于所述壳体外侧。The blower is arranged at the air inlet of the first air duct, the radiator includes heat dissipation fins, the heat dissipation fins are composed of an inner sheet and an outer sheet, and the inner sheet is provided with a ventilation gap; the inner sheet is provided with The outer sheet is arranged on the outer side of the casing at the air inlet of the blower and communicates with the second air duct.

本申请实施例提供的技术方案可以包括以下有益效果：本申请设计了一种光学引擎内循环无尘散热结构，通过内部循环散热，避免外界空气中的粉尘在TFT上堆积。The technical solutions provided by the embodiments of the present application may include the following beneficial effects: The present application designs a dust-free heat dissipation structure with an internal circulation of the optical engine, which prevents dust in the external air from accumulating on the TFT through the internal circulation of heat dissipation.

附图说明Description of drawings

为了更清楚地说明本实用新型实施例技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are some embodiments of the utility model. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

图1是本实用新型散热结构的结构示意图；Fig. 1 is the structural representation of the utility model heat dissipation structure;

图2至图4是本实用新型散热结构其他实施方式的剖面结构示意图。2 to 4 are schematic cross-sectional structural views of other embodiments of the heat dissipation structure of the present invention.

具体实施方式Detailed ways

下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。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 part of the embodiments of the present invention, not all of them. . 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.

还应当理解，在此本实用新型说明书中所使用的术语仅仅是出于描述特定实施例的目的而并不意在限制本实用新型。如在本实用新型说明书和所附权利要求书中所使用的那样，除非上下文清楚地指明其它情况，否则单数形式的“一”、“一个”及“该”意在包括复数形式。It should also be understood that the terminology used in the description of the present invention is only for the purpose of describing specific embodiments and is not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural referents unless the context clearly dictates otherwise.

还应当进一步理解，在本实用新型说明书和所附权利要求书中使用的术语“和/或”是指相关联列出的项中的一个或多个的任何组合以及所有可能组合，并且包括这些组合。It should also be further understood that the term "and/or" used in the description of the utility model and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combination.

请参照图1所示，本实用新型的光学引擎内循环无尘散热结构包括：壳体10以及位于壳体10内，且由上到下依次设置的第一菲涅尔透镜11、TFT 12、隔热玻璃13和第二菲涅尔透镜14；Please refer to Fig. 1, the dust-free heat dissipation structure in the optical engine of the present utility model includes: ahousing 10 and a first Fresnellens 11, aTFT 12, a first Fresnellens 11, aTFT 12,Heat insulating glass 13 and second Fresnellens 14;

其中，所述第一菲涅尔透镜11和所述TFT 12之间形成第一风道101，所述TFT12和所述隔热玻璃13之间形成第二风道102，所述第一风道101与所述第二风道102彼此导通；所述散热结构还包括至少一个鼓风机15和至少一个散热器16；Wherein, afirst air passage 101 is formed between the first Fresnellens 11 and theTFT 12, asecond air passage 102 is formed between theTFT 12 and theheat insulating glass 13, and thefirst air passage 101 and thesecond air duct 102 communicate with each other; the heat dissipation structure further includes at least oneblower 15 and at least oneradiator 16;

所述鼓风机15设置于所述第一风道101的入风口111，所述散热器16包括散热鳍，所述散热鳍由内片161和外片162组成，所述内片161设置有通风的缝隙；所述内片161设置于所述鼓风机15的进风口112且与所述第二风道102导通，所述外片162设置于所述壳体外侧。Theblower 15 is arranged at the air inlet 111 of thefirst air channel 101, theradiator 16 includes heat dissipation fins, and the heat dissipation fins are composed of aninner sheet 161 and anouter sheet 162, and theinner sheet 161 is provided with ventilation Slit: theinner sheet 161 is arranged at the air inlet 112 of theblower 15 and communicates with thesecond air channel 102 , and theouter sheet 162 is arranged outside the casing.

在本实用新型中，所述鼓风机15将冷风通过第一风道101吹向所述TFT 12，以对TFT 12进行散热，第一风道101内散热后的热风通过第二风道102再次回流至所述散热器16的内片161上，内片161将热风的热量导热后经外片162散热至壳体10的外围，然后内片161再将散热后的冷风通入所述鼓风机15的进风口112，从而实现内部的空气循环散热，完全与外部环境相隔绝，避免TFT 12上的灰尘。In the present utility model, theblower 15 blows the cold air to theTFT 12 through thefirst air channel 101 to dissipate heat from theTFT 12, and the hot air radiated in thefirst air channel 101 flows back again through thesecond air channel 102 On theinner sheet 161 of theheat sink 16, theinner sheet 161 conducts the heat of the hot air to the periphery of thehousing 10 through theouter sheet 162, and then theinner sheet 161 passes the radiated cold air into theblower 15. The air inlet 112 realizes internal air circulation and heat dissipation, is completely isolated from the external environment, and avoids dust on theTFT 12 .

参阅图2，在本实用新型中，所述隔热玻璃13和所述第二菲涅尔透镜14之间还可以形成第三风道103，所述第三风道103和第一风道101、第二风道102导通，其中，第一风道101中散热后的热风通过第三风道103再次回流至所述散热器16的内片161上，内片161利用外片162散热后，在通风至鼓风机15上，再次吹向第一风道101内的TFT 12散热，形成一个完整的循环。Referring to Fig. 2, in the present utility model, athird air passage 103 can also be formed between theheat insulating glass 13 and the second Fresnellens 14, and thethird air passage 103 and thefirst air passage 101 , thesecond air channel 102 conduction, wherein, the hot air after heat dissipation in thefirst air channel 101 flows back to theinner sheet 161 of theradiator 16 through thethird air channel 103 again, and theinner sheet 161 utilizes theouter sheet 162 to dissipate heat , on theair blower 15, blowing to theTFT 12 in thefirst air channel 101 to dissipate heat again, forming a complete cycle.

如图3和图4，在本实用新型的其他实施方式中，所述鼓风机15具有两个，分别为第一鼓风机15a和第二鼓风机15b，所述散热器16具有两个，分别为第一散热器16a和第二散热器16b；所述第一风道101和所述第二风道102通过所述第一鼓风机15a和所述第二鼓风机15b导通，所述第一鼓风机15a和所述第一散热器16a设置于所述壳体10一侧，所述第二鼓风机15a和所述第二散热器16b设置于所述壳体10另一侧；As shown in Fig. 3 and Fig. 4, in other embodiments of the present utility model, theblower 15 has two, respectively thefirst blower 15a and thesecond blower 15b, and theradiator 16 has two, respectively the first Theradiator 16a and thesecond radiator 16b; thefirst air passage 101 and thesecond air passage 102 are conducted through thefirst blower 15a and thesecond blower 15b, and thefirst blower 15a and thesecond blower 15b Thefirst radiator 16a is arranged on one side of thecasing 10, and thesecond blower 15a and thesecond radiator 16b are arranged on the other side of thecasing 10;

其中，所述第一鼓风机15a出风口设置于所述第一风道101的入风口，所述第二散热器16b的内片161设置于所述第一风道101的出风口，所述第二散热器16b的内片161与所述第二鼓风机15b进风口连接，所述第二鼓风机15b的出风口设置于所述第二风道102和/或第三风道103的进风口，所述第一散热器16a的内片161设置于所述第一鼓风机15a的进风口并于所述第二风道102、第三风道103导通；所述第一散热器16a和所述第二散热器16b的外片162均设置于所述壳体10外侧。Wherein, the air outlet of thefirst blower 15a is arranged at the air inlet of thefirst air duct 101, theinner sheet 161 of thesecond radiator 16b is arranged at the air outlet of thefirst air duct 101, and the first Theinner sheet 161 of thesecond radiator 16b is connected to the air inlet of thesecond air blower 15b, and the air outlet of thesecond air blower 15b is arranged at the air inlet of thesecond air duct 102 and/or thethird air duct 103, so Theinner sheet 161 of thefirst radiator 16a is arranged at the air inlet of thefirst blower 15a and is connected to thesecond air passage 102 and thethird air passage 103; thefirst radiator 16a and the second air passage Theouter fins 162 of the tworadiators 16b are both disposed outside thecasing 10 .

在本实施方式中，所述第一风道101作为冷风的通风通道，对TFT 12散热，当吸收热量后的热风进入第二散热器102的内片161时，通过第二散热器16b的外片162再次冷却后，作为冷风继续进入第二风道102和第三风道103回风，位于第二风道102和第三风道103中的冷风对隔热玻璃13和第二菲涅尔透镜14散热后，进入第一散热器16a的内片161，第一散热器16a对吸收隔热玻璃13和第二菲涅尔透镜14的热风经外片162散热后，继续进入第一鼓风机15a的入口，再次进入循环。In this embodiment, thefirst air channel 101 serves as a ventilation channel for cold air to dissipate heat from the TFT 12. When the hot air after absorbing heat enters theinner sheet 161 of thesecond radiator 102, it passes through the outer surface of thesecond radiator 16b. After thesheet 162 is cooled again, it continues to enter thesecond air duct 102 and thethird air duct 103 as cold wind to return air, and the cold wind located in thesecond air duct 102 and thethird air duct 103 is opposite to theinsulating glass 13 and the second Fresnel. After thelens 14 dissipates heat, it enters theinner sheet 161 of thefirst radiator 16a, and thefirst radiator 16a absorbs the hot air of theinsulating glass 13 and the second Fresnellens 14, and then continues to enter thefirst air blower 15a after dissipating heat through theouter sheet 162 entry, enter the loop again.

本实施方式中，采用两个散热器(16a、16b)对散热结构内部进行密闭散热，散热效果更好，且能够避免灰尘进入。In this embodiment, two heat sinks (16a, 16b) are used to seal and dissipate heat inside the heat dissipation structure, which has a better heat dissipation effect and can prevent dust from entering.

以上所述，仅为本实用新型的具体实施方式，但本实用新型的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本实用新型揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本实用新型的保护范围之内。因此，本实用新型的保护范围应以权利要求的保护范围为准。The above is only a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any person familiar with the technical field can easily think of various Equivalent modifications or replacements shall all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (4)

1. An optical engine internal circulation dust-free heat radiation structure, comprising: the first Fresnel lens, the TFT, the heat-insulating glass and the second Fresnel lens are arranged in the shell from top to bottom in sequence;

a first air channel is formed between the first Fresnel lens and the TFT, a second air channel is formed between the TFT and the heat-insulating glass, a third air channel is formed between the heat-insulating glass and the second Fresnel lens, and the first air channel, the second air channel and the third air channel are communicated with each other; the heat dissipation structure further comprises at least one blower and at least one radiator;

the air blower is arranged at the air inlet of the first air duct, the radiator comprises radiating fins, the radiating fins consist of inner sheets and outer sheets, and the inner sheets are provided with ventilation gaps; the inner piece is arranged at the air inlet of the blower and is communicated with the second air duct and the third air duct, and the outer piece is arranged at the outer side of the shell.

2. The optical engine internal circulation dust-free heat radiation structure according to claim 1, wherein the blower has two, respectively a first blower and a second blower, and the heat radiator has two, respectively a first heat radiator and a second heat radiator; the first blower and the first radiator are arranged on one side of the shell, and the second blower and the second radiator are arranged on the other side of the shell;

the first air blower air outlet is arranged at the air inlet of the first air duct, the inner piece of the second radiator is arranged at the air outlet of the first air duct, the inner piece of the second radiator is connected with the air inlet of the second air blower, the air outlet of the second air blower is arranged at the air inlet of the second air duct and/or the air inlet of the third air duct, and the inner piece of the first radiator is arranged at the air inlet of the first air blower and is communicated with the second air duct and/or the third air duct; the outer sheets of the first radiator and the second radiator are arranged on the outer side of the shell.

3. An optical engine internal circulation dust-free heat radiation structure, comprising: the first Fresnel lens, the TFT, the heat-insulating glass and the second Fresnel lens are arranged in the shell from top to bottom in sequence;

a first air channel is formed between the first Fresnel lens and the TFT, a second air channel is formed between the TFT and the heat insulation glass, and the first air channel and the second air channel are communicated with each other; the heat dissipation structure further comprises at least one blower and at least one radiator;

the air blower is arranged at the air inlet of the first air duct, the radiator comprises radiating fins, the radiating fins consist of inner sheets and outer sheets, and the inner sheets are provided with ventilation gaps; the inner piece is arranged at the air inlet of the blower and communicated with the second air duct, and the outer piece is arranged at the outer side of the shell.

4. A light engine internal circulation dust free heat dissipating structure according to claim 3, wherein said blower has two, first blower and second blower, respectively, and said heat sink has two, first heat sink and second heat sink, respectively; the first air duct and the second air duct are communicated through the first air blower and the second air blower, the first air blower and the first radiator are arranged on one side of the shell, and the second air blower and the second radiator are arranged on the other side of the shell;

the first air blower air outlet is arranged at the air inlet of the first air duct, the inner piece of the second radiator is arranged at the air outlet of the first air duct, the inner piece of the second radiator is connected with the air inlet of the second air blower, the air outlet of the second air blower is arranged at the air inlet of the second air duct, and the inner piece of the first radiator is arranged at the air inlet of the first air blower and is communicated with the third air duct of the second air duct; the outer sheets of the first radiator and the second radiator are arranged on the outer side of the shell.

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