Novel ventilation and heat dissipation device

Abstract

The utility model discloses a novel ventilation and heat dissipation device, which comprises a casing, a projector body is connected in the casing, and the body comprises an upper body, a lower body, a rear baffle plate and a front baffle plate which are mutually buckled. The front baffle plate and the rear baffle plate are provided with airflow ports, the projector body is internally provided with a gas channel communicating the front baffle plate and the rear baffle plate, and the gas channel comprises a front gas channel arranged close to the front baffle plate and a rear gas channel arranged close to the rear baffle plate; the two inner walls of the front gas flow channel are each of a plurality of continuously-arranged wave-shaped structures, a worm wheel fan is connected into the rear gas flow channel, and a guide opening is formed in the position, close to the upper portion of the worm wheel fan, of the projector body and communicated with the front gas flow channel. Compared with the prior art, the novel ventilation and heat dissipation device has the advantages that dust filtration and heat dissipation are facilitated, and the heat dissipation effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of projectors, in particular to a novel ventilation and heat dissipation device. Background Art

[0002] A projector is an optical instrument that uses optical elements to magnify liquid crystal images and project them onto a screen. It can use transmitted light to magnify images. A projector generally includes an optical machine part, a control part, an audio interface, a video interface, etc. The optical machine generally includes a light source, a lens combination, a reflector, a DMD chip (LCD screen), and a projection lens.

[0003] In order to improve the performance and display effect of projectors, people have begun to explore new light sources and optical systems in recent years. Among them, LED light sources as a new type of light source have gradually been used in the projection field. However, when in use, the LCD screen in the projector can only withstand a high temperature of 75 degrees, and the maximum high temperature is 70 degrees. When the temperature exceeds 70 degrees, the liquid in the LCD screen changes and black spots appear, which affects the brightness. The internal temperature of existing projectors can reach over 90 degrees, and the high temperature of LED radiators can reach over 100 degrees, which can easily affect the normal use of the projector.

[0004] In the prior art, heat dissipation in a projector is mostly achieved through airflow passing through an optical module. However, during use, the dust removal effect is generally poor, and dust may easily stick to the projector, affecting subsequent imaging effects. Utility Model Content

[0005] (1) Problems to be solved

[0006] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a novel ventilation and heat dissipation device which is convenient for dust filtering and heat dissipation and ensures heat dissipation effect.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the present invention provides a technical solution as follows: a novel ventilation and heat dissipation device, comprising a housing, a projector body being connected to the housing, the housing comprising an upper body, a lower body, a rear baffle and a front baffle which are interlocked;

[0009] The front baffle and the rear baffle are both provided with air flow openings, and the projector body is provided with a gas channel connecting the front baffle and the rear baffle, and the gas channel includes a front gas flow channel arranged near the front baffle and a rear gas flow channel arranged near the rear baffle;

[0010] Both inner walls of the front gas flow channel are a plurality of continuously arranged wavy structures. A worm wheel fan is connected to the rear gas flow channel. A guide port is provided on the projector body near the upper part of the worm wheel fan and connected to the front gas flow channel.

[0011] As an improvement, a lower matching piece heat dissipation chamber is further provided on the front section of the lower body close to the projector body, and a plurality of heat dissipation openings are provided on the outer wall of the lower matching piece heat dissipation chamber.

[0012] As an improvement, an upper matching heat dissipation chamber is provided in the upper body in cooperation with the front section of the projector body, a ventilation port is provided on the top of the upper matching heat dissipation chamber, and a sealing convex plate is provided on the top of the projector body in cooperation with the ventilation port.

[0013] As an improvement, a radiator for dissipating heat from the projector body is further connected to the rear gas flow channel.

[0014] As an improvement, both inner walls of the front gas flow channel are coated with sticky glue, the outer wall of the projector body is provided with a shift plate, and several vertical rods are connected to the shift plate in the front gas flow channel. The outer wall of the front gas flow channel is clamped between the groove formed by the shift plate and the vertical rods.

[0015] As an improvement, a vertically arranged heat dissipation gas flow channel is provided in the projector body. The heat dissipation gas flow channel is located above the worm wheel fan, the guide port is connected to the two walls of the heat dissipation gas flow channel, and the front gas flow channel and the rear gas flow channel are connected through the heat dissipation gas flow channel.

[0016] As an improvement, the air inlet of the front gas flow channel is also connected to a dust filter cotton.

[0017] (3) Beneficial effects

[0018] The advantages of the present invention compared with the prior art are: in this application, by improving each gas flow channel, negative pressure exhaust is performed by a worm wheel fan, and the wavy front gas flow channel is combined with dust filter cotton and dust sticking glue to greatly improve the dust removal effect, and the groove body formed therein makes the outer wall of the front gas flow channel removable and maintainable, which is convenient for later disassembly and maintenance. In addition, the upper and lower matching parts heat dissipation chambers are provided to dissipate heat for other parts of the projector body, and the sealing convex plate is provided to prevent the undusted gas in the ventilation port from entering the heat dissipation gas flow channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of a new type of ventilation and heat dissipation device.

[0020] Figure 2 It is a structural schematic diagram of an exploded view of a new type of ventilation and heat dissipation device.

[0021] Figure 3 It is a structural schematic diagram of a cross-sectional view of a new type of ventilation and heat dissipation device.

[0022] Figure 4 It is a second perspective structural schematic diagram of a cross-sectional view of a new ventilation and heat dissipation device.

[0023] As shown in the figure: 1. Projector body; 2. Upper body; 3. Lower body; 4. Rear baffle; 5. Front baffle; 6. Front air flow channel; 7. Rear air flow channel; 8. Worm fan; 9. Guide port; 10. Lower matching part heat dissipation chamber; 11. Radiator; 12. Shift plate; 13. Vertical rod; 14. Heat dissipation air flow channel; 15. Dust filter cotton; 16. Upper matching part heat dissipation chamber; 17. Ventilation port; 18. Sealing convex plate. DETAILED DESCRIPTION

[0024] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings, wherein the same components are represented by the same reference numerals.

[0025] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the accompanying drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0026] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art in the technical field to which the present invention pertains. The terminology used herein in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0028] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0029] Please refer to the attached Figure 1-4 A novel ventilation and heat dissipation device includes a housing, a projector body 1 is connected to the housing, and the housing includes an upper body 2, a lower body 3, a rear baffle 4 and a front baffle 5 that are interlocked. Figure 2 As shown, each component is connected by a clamp.

[0030] When used specifically:

[0031] Both the front baffle 5 and the rear baffle 4 are provided with air flow openings. At the same time, a gas channel connecting the front baffle 5 and the rear baffle 4 is provided in the projector body 1. The gas channel includes a front gas flow channel 6 arranged near the front baffle 5 and a rear gas flow channel 7 arranged near the rear baffle 4, so that the gas flows in the projector body 1 for heat dissipation. The inner walls of the front gas flow channel 6 are a number of continuously arranged wavy structures. A worm wheel fan 8 is connected to the rear gas flow channel 7. A guide port 9 is provided on the projector body 1 near the upper part of the worm wheel fan 8 and connected to the front gas flow channel 6. A radiator 11 for dissipating heat from the projector body 1 is also connected to the rear gas flow channel 7. By starting the turbine fan to generate negative pressure to induced wind, the wavy inner wall can buffer the flowing gas. At the same time, the inner walls of the front gas flow channel 6 are coated with sticky glue, which absorbs dust. In addition, the air inlet of the front gas flow channel 6 is also connected with dust filter cotton 15 to further increase the dust filtering effect.

[0032] In one embodiment:

[0033] A lower matching heat dissipation chamber 10 is also provided on the front section of the lower body 3 near the projector body 1, and a plurality of heat dissipation ports are provided on the outer wall of the lower matching heat dissipation chamber 10. At the same time, an upper matching heat dissipation chamber 16 is provided in the upper body 2 in cooperation with the front section of the projector body 1. A ventilation port 17 is provided on the top of the upper matching heat dissipation chamber 16. A sealing convex plate 18 is provided on the top of the projector body 1 in cooperation with the ventilation port 17, which can be used to dissipate heat for other parts of the projector.

[0034] In order to facilitate subsequent maintenance and cleaning, a shift plate 12 is provided on the outer wall of the projector body 1, and a number of vertical rods 13 are connected to the front gas flow channel 6 near the shift plate 12. The outer wall of the front gas flow channel 6 is clamped between the groove formed by the shift plate 12 and the vertical rods 13. The outer wall of the front gas flow channel 6 is clamped and fixed by the projector body 1 through the shift plate 12 and the vertical rods 13.

[0035] A vertically arranged heat dissipation gas flow channel 14 is provided in the projector body 1. The heat dissipation gas flow channel 14 is located on the upper part of the worm turbine fan 8. The guide port 9 is connected to the two walls of the heat dissipation gas flow channel 14. The front gas flow channel 6 and the rear gas flow channel 7 are connected through the heat dissipation gas flow channel 14. The heat dissipation gas flow channel 14 is mainly used for heat dissipation of the optical machine module.

[0036] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0037] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0038] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A novel ventilation and heat dissipation device, comprising a housing, wherein a projector body (1) is connected to the housing, and characterized in that: The housing comprises an upper body (2), a lower body (3), a rear baffle (4) and a front baffle (5) which are interlocked. The front baffle (5) and the rear baffle (4) are both provided with air flow openings, and a gas channel communicating with the front baffle (5) and the rear baffle (4) is provided in the projector body (1), the gas channel comprising a front gas flow channel (6) provided near the front baffle (5) and a rear gas flow channel (7) provided near the rear baffle (4); Both inner walls of the front gas flow channel (6) are composed of a plurality of continuously arranged wavy structures. A worm wheel fan (8) is connected to the rear gas flow channel (7). A guide port (9) is provided on the projector body (1) near the upper portion of the worm wheel fan (8) and in communication with the front gas flow channel (6).

2. A novel ventilation and heat dissipation device according to claim 1, characterized in that: A lower matching component heat dissipation chamber (10) is also provided on the front section of the lower body (3) close to the projector body (1), and a plurality of heat dissipation openings are provided on the outer wall of the lower matching component heat dissipation chamber (10).

3. A novel ventilation and heat dissipation device according to claim 1, characterized in that: A radiator (11) for dissipating heat from the projector body (1) is also connected to the rear gas flow channel (7).

4. A novel ventilation and heat dissipation device according to claim 1, characterized in that: Both inner walls of the front gas flow channel (6) are coated with dust-sticking glue, the outer wall of the projector body (1) is provided with a shift plate (12), a plurality of vertical rods (13) are provided in the front gas flow channel (6) close to the shift plate (12) and connected, and the outer wall of the front gas flow channel (6) is clamped between the groove formed by the shift plate (12) and the vertical rods (13).

5. A novel ventilation and heat dissipation device according to claim 4, characterized in that: A vertically arranged heat dissipation gas flow channel (14) is provided in the projector body (1). The heat dissipation gas flow channel (14) is located above the worm wheel fan (8). The guide port (9) is connected to two walls of the heat dissipation gas flow channel (14). The front gas flow channel (6) and the rear gas flow channel (7) are connected via the heat dissipation gas flow channel (14).

6. The novel ventilation and heat dissipation device according to claim 1, characterized in that: The air inlet of the front gas flow channel (6) is also connected to a dust filter cotton (15).

7. The novel ventilation and heat dissipation device according to claim 5, characterized in that: An upper matching heat dissipation chamber (16) is provided in the upper body (2) in cooperation with the front section of the projector body (1); a ventilation port (17) is provided at the top of the upper matching heat dissipation chamber (16); and a sealing convex plate (18) is provided at the top of the projector body (1) in cooperation with the ventilation port (17).

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