CN115598908A - Outdoor projection device - Google Patents

Abstract

The invention discloses a projection device for outdoors, which includes a protective box and a projector arranged in the protective box; the projector includes a bottom surface and a first side, a second side, a third side, and a second side vertically fixed on the edge of the bottom surface. Four sides, the first side and the third side are provided with air inlets, the second side and the fourth side are provided with air outlets; the protective box is provided with an air duct cavity under the bottom surface of the projector, and the protective box corresponds to the fourth side of the projector A radiator is provided, and the protective box is provided with a first air guide at the air outlet of the second side, the first air guide is closed at the air outlet of the second side and connected with the air duct cavity, the first air guide connects the second The wind from the air outlet on the second side is introduced into the air duct cavity and drawn out by the radiator; the protective box is provided with a second air guide at the air outlet on the fourth side, and the second air guide is clamped on the fourth side of the projector and It is connected with the air channel cavity, the second air guide part seals and connects the air channel cavity with the radiator, and the air from the air outlet on the fourth side is drawn out through the radiator.

Description

Projectors for outdoor use

technical field

The present invention relates to a projection device, in particular to an outdoor projection device.

Background technique

At present, when the projector is used outdoors, waterproof and heat dissipation are technical problems that need to be solved urgently. To solve the waterproof problem of the projector, one is that the projector itself is waterproof, and the other is to place the projector in a protective box. Waterproof projectors are expensive and expensive; the heat dissipation of the projector is also a big problem when it is placed in the enclosed space of the protective box. Existing projectors are provided with air inlets and air outlets on opposite sides, with air inlet on one side and air outlet on one side, and the air inlet and outlet air paths are arranged in parallel, and the protective box is also provided with parallel air inlets and air outlets corresponding to the projector. The air outlet is more conducive to the heat dissipation of the projector.

However, the projectors currently on the market are no longer arranged in parallel with the air inlet and outlet air paths. Specifically, the opposite sides of the projector are respectively provided with air inlets, and the other opposite sides of the projector are respectively provided with outlets. The air outlet, the air inlet and air outlet of the projector are arranged vertically. The air inlets and outlets arranged parallel to the opposite sides of the traditional protective box will conflict with the air inlet and outlet air paths of the projector vertically. The air inlet of the protective box and the air outlet of the projector will collide together, making The air outlet of the projector will be blocked, which will affect the heat dissipation effect of the projector, making the heat dissipation of the projector insufficient and incomplete.

Contents of the invention

The object of the present invention is to overcome the defects of the prior art and provide an outdoor projection device with sufficient and thorough heat dissipation.

In order to achieve the above object, the technical scheme adopted in the present invention is as follows:

A projection device for outdoors, comprising a protective box and a projector arranged in the protective box;

The projector includes a bottom surface and a first side, a second side, a third side, and a fourth side vertically fixed on the edge of the bottom surface, the first side is opposite to the third side, and the second side is Set opposite to the fourth side, the first side and the third side are both provided with an air inlet, and the second side and the fourth side are both provided with an air outlet;

The protective box is provided with an air duct cavity below the bottom surface of the projector, the protective box is provided with a radiator corresponding to the fourth side of the projector, and the protective box is arranged on the second side The air outlet is provided with a first air guide, the first air guide is closed to the air outlet on the second side and connected to the air duct cavity, the first air guide will The air from the air outlet on the second side is introduced into the air duct cavity and drawn out by the radiator;

The protective box is provided with a second air guide at the air outlet on the fourth side, and the second air guide is clamped on the fourth side of the projector and connected to the air duct cavity. The second air guide member seals and connects the air duct cavity with the radiator, and the air from the air outlet on the fourth side is drawn out through the radiator.

Further, the second wind guide is a rectangular frame, and an opening is provided on the fourth side of the projector.

Further, the air duct cavity is a cavity with four sides closed and left and right openings.

Further, the air duct cavity is provided with through holes corresponding to the first air guide piece and the second air guide piece.

Further, the protective box includes a shell, a cover plate and a shell, the shell is sealed and fixedly connected with the cover plate, and the shell is clamped on both sides of the shell.

Further, an annular slot is recessed between the shell and both sides of the housing.

Further, the bottom of the housing is provided with vents.

Further, the vents are grid-shaped.

Further, the protective box further includes a mounting plate arranged on the bottom surface of the projector.

Further, the protective box is provided with a third air guide at the air inlet of the first side, and the bottom of the third air guide is fixed on the installation plate.

Compared with the prior art, 1. In the present invention, the air inlet and air outlet directions of the projector are vertical, and the air outlet and air inlet directions of the protective box are in the same direction, but through the first air guide member and the air duct cavity Designed so that the air inlet direction of the protective box is opposite to one of the outlet air directions of the projector but completely independent of each other. 2. Through the air duct cavity of the protective box, the second air guide and the projector's sealing cooperation, the air circuit of the projector and the air circuit of the protective box are relatively independent but share the same channel, so that the projector can be operated more effectively The heat energy generated during the operation is exported, which accelerates the heat dissipation of the projector, ensures the normal operation of the projector for a long time, and avoids damage to the projector due to poor heat dissipation.

Description of drawings

Fig. 1 is the three-dimensional combination schematic diagram of the present invention;

Figure 2 is a three-dimensional exploded schematic diagram of the present invention;

Fig. 3 is a partial perspective view of the present invention;

Figure 4 is a partial perspective view of the present invention;

Figure 5 is a partial perspective view of the present invention;

Fig. 6 is a bottom schematic diagram of the present invention;

Fig. 7 is a schematic diagram of the air circuit of the present invention.

The accompanying drawing number of specific embodiment:

Protective box-1; air duct cavity-11; through hole-111; radiator-12; first air guide-13; second air guide-14; opening-141;

Housing-15; Fourth Air Guide-151; Cover-16; Shell-17; Slot-171; Vent-172; Filter-173; ; The third air guide-18; Mounting plate-19; Projector-2; The first side-21; The second side-22; The third side-23; The fourth side-24; Air inlet-25; Air outlet -26; Top -27.

detailed description

The outdoor projection device of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Referring to FIG. 1 , FIG. 4 and FIG. 5 , the present invention discloses a projection device for outdoor use, and the projection device for outdoor use includes a protective box 1 and a projector 2 arranged in the protective box 1 . The projector 2 includes a bottom surface and a first side 21 , a second side 22 , a third side 23 and a fourth side 24 vertically fixed on the edge of the bottom. The first side 21 of the projector 2 is opposite to the third side 23 , and the second side 22 of the projector 2 is opposite to the fourth side 24 . The first side 21 and the third side 23 of the projector 2 are all provided with an air inlet 25, and the air inlet 25 is provided with a device for air intake, such as a fan, a fan, etc., for the When the projector 2 is in operation, ventilation is carried out to dissipate heat. Both the second side 22 and the fourth side 24 of the projector 2 are provided with air outlets 26, and the air outlets 26 dissipate the heat generated when the projector 2 is running, so that the projector 2 It can be at a suitable temperature during operation. In this embodiment, the air inlet and air outlet directions of the projector 2 are vertical.

Please refer to FIG. 2 and FIG. 4 , the protective box 1 is provided with an air duct cavity 11 below the bottom surface of the projector 2 , and the protective box 1 is set corresponding to the fourth side 24 of the projector 2 There is a radiator 12 . In this embodiment, the radiator 12 includes three cooling fans, of course, in other embodiments, the radiator 12 can also be other cooling devices. The protective box 1 is provided with a first air guide 13 at the air outlet 26 of the second side 22 of the projector 2 , and the first air guide 13 is closed on the second side 22 The air outlet 26 of the second side 22 is connected to the air duct cavity 11, and the first air guide 13 guides the air from the air outlet 26 of the second side 22 into the air duct cavity 11 and through the The radiator 12 is drawn out. The protective box 1 is provided with a second air guide 14 at the air outlet 26 of the fourth side 24 of the projector 2, and the second air guide 14 is clamped on the side of the projector 2. The fourth side 24 is also connected to the air duct cavity 11, the second air guide member 14 seals and connects the air duct cavity 11 to the radiator 12, and the outlet of the fourth side 24 The wind from the tuyeres 26 is extracted through the radiator 12 .

Please refer to FIG. 2 and FIG. 4 , the air channel cavity 11 is a cavity with four sides closed and left and right openings, and the air channel cavity 11 is provided with a through hole 111 . The second air guiding member 14 is a rectangular frame, which is provided with an opening 141 corresponding to the fourth side 24 of the projector 2, and the fourth side 24 of the projector 2 is exposed in the opening 141 . The first air guide 13 is closed to the air outlet 26 of the second side 22 of the projector 2 , and the first air guide 13 is fixed on the air duct cavity 11 . The first wind guide 13 and the second side 22 of the projector 2 form a closed space, and the wind from the air outlet 26 of the second side 22 can only pass through the through hole 111 enters the air duct chamber 11.

Please refer to FIG. 2 and FIG. 4 , the second air guide 14 is clamped on the fourth side 24 of the projector 2 , and the second air guide 14 guides the fourth side 24 The air outlet 26 is closed and connected with the radiator 12 . The second air guide member 14 is fixed on the air duct cavity 11 , and the second air guide member 14 seals and connects the air duct cavity 11 and the radiator 12 . The wind from the air outlet 26 of the second side 22 of the projector 2 passes through the air duct cavity 11, and only the air channel cavity 11 corresponding to the opening of the second air guide member 14 opens. The through hole 111 comes out, and the air coming out from the air outlet 26 of the fourth side 24 of the projector 2 is drawn out through the radiator 12 together. The protective box 1 accelerates the heat dissipation of the projector 2 through the mutual cooperation of the first air guide 13 , the second air guide 14 , the air duct cavity 11 and the radiator 12 , The heat dissipation efficiency of the projector 2 is improved.

Referring to Fig. 1 and Fig. 5, the protective box 1 includes a housing 15, a cover plate 16 and a housing 17, the housing 15 is sealed and fixedly connected with the cover plate 16, and the housing 17 is clamped on the housing Body 15 both sides. The projector 2 is disposed in the casing 15 of the protective box 1 , and the cover plate 16 covers the top surface 27 of the projector 2 and is sealed and fixedly connected with the casing 15 . The projector 2 is located in the enclosed space formed by the casing 15 and the cover plate 16 , which can prevent mosquitoes, dust, and rainwater from entering the projector 2 and avoid affecting the normal operation of the projector 2 .

Please refer to Fig. 1 and Fig. 6, between the casing 17 and the two sides of the casing 15, an annular slot 171 is respectively recessed to form an annular slot 171. 1 can flow to the bottom of the housing 15 along the slot 171 and then fall to the ground, ensuring that the protective box 1 has good waterproof performance. The bottom of the housing 17 is also provided with a ventilation opening 172, and the ventilation opening 172 is grid-shaped. The radiator 12 dissipates heat through the correspondingly arranged vents 172 , and due to the negative pressure formed by the radiator 12 drawing air to dissipate heat, the protective box 1 passes through the vents located below the first air guide 13 . 172 The air intake is used to circulate and dissipate heat from the protective box 1 . In fact, the vent 172 located below the first air guide 13 is equivalent to the air inlet of the protective box 1, and the vent 172 located below the radiator 12 is equivalent to the protective box 1. The air inlet and outlet of the protective box 1 are in the same direction.

Please refer to Fig. 2 and Fig. 7, in this embodiment, the air inlet and air outlet directions of the projector 2 are vertical, the air outlet and air inlet directions of the protective box 1 are in the same direction, through the first An air guide 13 and the air channel cavity 11 are designed so that the air intake direction of the protective box 1 (the vent 172 below the first air guide 13 is used for air intake) is consistent with the projection One of the air outlet directions of the instrument 2 (air outlet 26 of the second side 22 ) is opposite but completely independent of each other. Moreover, through the air duct cavity 11 of the protective box 1 , the second air guide 14 and the projector 2 are sealed, the air circuit of the projector 2 is connected to the protective box 1 . The air circuit loops are relatively independent but share a channel (both dissipate heat through the radiator 12 and the vent 172 below the radiator 12), so as to more effectively export the heat energy generated by the projector 2 during operation, Accelerate the heat dissipation of the projector 2, ensure the normal operation of the projector 2 for a long time, and avoid damage to the projector 2 due to poor heat dissipation.

Please refer to FIG. 3 and FIG. 6 , the housing 17 includes a filter screen 173 arranged in front of the radiator 12 , a fixing member 174 and the casing 15 corresponding to the second side 22 of the projector 2 . The filter cotton 175 , the pressing plate 176 arranged in front of one side, and the frames 177 respectively clamped on both sides of the housing 15 . The fixing member 174 fixes the filter screen 173 in front of the radiator 12, and the frame body 177 engages with one side of the housing 15 so that the radiator 12 is not exposed to the outside. The pressure plate 176 is separately arranged in the frame body 177 and the other side of the housing 15, and the frame body 177 equipped with the filter cotton 175 and the pressure plate 176 is engaged with the other side of the housing 15. .

1 and 2, the protective case 1 is provided with a third air guide 18 at the air inlet 25 of the first side 21 of the projector 2, and the protective case 1 also includes a The mounting plate 19 on the bottom surface of the projector 2 is fixed on the mounting plate 19 at the bottom of the third air guiding member 18 . So far, the air duct cavity 11, the first air guide 13, the second air guide 14, the third air guide 18, and the mounting plate 19 are also located between the housing 15 and the In the airtight space formed by the cover plate 16.

2 and 4, the housing 15 of the protective box 1 is also provided with a fourth air guide 151 on the second side 22 of the projector 2, and the fourth air guide 151 Guide the wind to the first side 21 and the third side 23 of the projector 2, so that the air inlets 25 of the first side 21 and the third side 23 can better enter the wind and accelerate The intake air of the projector 2 dissipates heat, which improves the heat dissipation efficiency of the projector 2 .

To sum up, 1. The air inlet and air outlet directions of the projector 2 in the present invention are vertical, and the air outlet and air inlet directions of the protective box 1 are in the same direction, but through the first wind guide 13 and the air duct cavity 11 are designed so that the air inlet direction of the protective box 1 is opposite to one of the air outlet directions of the projector 2 but completely independent of each other. 2. Through the air duct cavity 11 of the protective box 1, the second air guide 14 and the projector 2 are sealed, so that the air circuit of the projector 2 is connected with the protective box 1 The wind circuit loops are relatively independent but share the channel, which can more effectively export the heat energy generated by the projector 2 during operation, accelerate the heat dissipation of the projector 2, ensure the normal operation of the projector 2 for a long time, and avoid Poor heat dissipation causes damage to the projector 2 .

The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modifications made under the technical spirit disclosed in the present invention shall belong to The scope of patents covered by the present invention.

Claims (10)

1. The utility model provides a be used for outdoor projection arrangement, includes the protective housing and sets up in the projecting apparatus in the protective housing, its characterized in that:

the projector comprises a bottom surface, a first side surface, a second side surface, a third side surface and a fourth side surface, wherein the first side surface, the second side surface, the third side surface and the fourth side surface are vertically fixed on the edge of the bottom surface;

the protective box is provided with an air duct cavity below the bottom surface of the projector, the protective box is provided with a radiator corresponding to the fourth side surface of the projector, the air outlet of the protective box on the second side surface is provided with a first air guide piece, the first air guide piece is closed at the air outlet of the second side surface and is connected with the air duct cavity, and the first air guide piece guides the air of the air outlet of the second side surface into the air duct cavity and is drawn out by the radiator;

the protection box is in the fourth side the air outlet is equipped with the second wind-guiding piece, the second wind-guiding piece card is located the projecting apparatus the fourth side and with the wind channel chamber is connected, the second wind-guiding piece will the wind channel chamber with the radiator seals and is connected, the fourth side the wind of air outlet passes through the radiator is taken out.

2. A projection device for outdoor use as claimed in claim 1, wherein: the second air guide is a rectangular frame, and an opening is formed in the second air guide corresponding to the fourth side face of the projector.

3. The projection apparatus for outdoor use of claim 1, wherein: the air duct cavity is a cavity with four closed sides and left and right openings.

4. A projection device for outdoor use as claimed in any one of claims 1 to 3, wherein: the air duct cavity is provided with through holes corresponding to the first air guide piece and the second air guide piece.

5. A projection device for outdoor use as claimed in claim 1, wherein: the protective housing comprises a housing, a cover plate and a shell, the housing is fixedly connected with the cover plate in a sealing mode, and the shell is clamped on two sides of the housing.

6. The projection apparatus for outdoor use of claim 5, wherein: an annular slot is concavely formed between the shell and the two sides of the shell.

7. A projection device for outdoor use as claimed in claim 5 or 6, wherein: the bottom of the shell is provided with a vent.

8. The projection device for outdoor use of claim 7, wherein: the ventilation opening is in a grid shape.

9. A projection device for outdoor use as claimed in claim 1, wherein: the protective box further comprises a mounting plate arranged on the bottom surface of the projector.

10. A projection device for outdoor use as claimed in claim 9, wherein: the protection box is in the first side the air intake is equipped with the third air guide, the bottom of third air guide is fixed in on the mounting panel.

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