Mute case with noise reduction function

Abstract

The utility model discloses a mute case with a noise reduction function, which comprises a case body, a plurality of heat dissipation fans are embedded at the top of the case body, a circular heat dissipation sound insulation plate is fixed above the heat dissipation fans, a plurality of heat dissipation holes in an annular array are formed in the circle center of the heat dissipation sound insulation plate, annular heat dissipation holes are formed in the position close to the edge, and the heat dissipation holes are communicated with the heat dissipation sound insulation plate. And an M-shaped flow guide surface is arranged on the inner surface of the heat dissipation sound insulation plate.

Description

Technical Field

[0001] The utility model relates to the field of computer chassis, in particular to a silent chassis with noise reduction function. Background Art

[0002] As a part of computer accessories, the main function of the chassis is to place and fix various computer accessories, such as motherboard, graphics card, power supply, etc., which are all fixedly installed inside the chassis. For these accessories, the chassis can play a supporting and protective role. Usually, a cooling fan is installed inside the chassis to discharge the hot air inside the chassis to ensure that the accessories inside the chassis can run more stably, and a dust net is installed at the heat dissipation port to reduce the chance of dust entering the chassis.

[0003] After searching, the utility model publication number is: CN219978808U, a kind of dustproof and silent computer case; its technical scheme includes a heat dissipation base, a case shell is installed on the top of the heat dissipation base, a cover is fixedly installed at the top opening of the case shell, a built-in isolation cover is installed on the lower surface of the cover, and external sealing plates are fixedly installed on the four walls of the case shell, and a number of multi-layer sound-absorbing components are installed on the inner wall of each external sealing plate, and a number of exhaust fans are fixedly installed inside the heat dissipation base. The beneficial effect of this utility model is that the heat inside the case can be discharged by the exhaust fan, and the heat dissipation performance of the accessories inside the case is improved. The dustproof net at the heat dissipation port can reduce the chance of dust entering the inside of the case, and the case adopts a double-layer structure, and a multi-layer board with sound-absorbing function is arranged in the interlayer, which can reduce the noise generated by the accessories inside the case when they are in operation, and effectively improve the silent performance of the case.

[0004] However, this utility has the following problems:

[0005] 1. The chassis sets the fan at the bottom, but the hot air floats upwards, and the fan at the bottom cannot discharge the hot air near the top of the chassis, resulting in poor heat dissipation effect;

[0006] 2. The chassis only has noise reduction and sound insulation effects on the chassis structure, and can soundproof the motherboard fan, but the fan itself does not have good sound insulation, so the sound insulation effect is still poor. Utility Model Content

[0007] In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides a silent chassis with noise reduction function to solve the problem proposed in the background technology that the fan is set at the bottom, resulting in poor heat dissipation effect and the fan itself does not have good sound insulation, so the sound insulation effect is still poor.

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions: a silent chassis with noise reduction function, comprising a box body, a plurality of cooling fans are embedded on the top of the box body, a circular heat dissipation sound insulation board is fixed above the cooling fans, a plurality of heat dissipation holes in a circular array are opened at the center of the heat dissipation sound insulation board, and annular heat dissipation holes are opened near the edge, and an M-shaped guide surface is provided on the inner surface of the heat dissipation sound insulation board.

[0009] Preferably, a plurality of upper heat dissipation vents are provided on the top of the box body, and two mirror-image mounting grooves are provided on the edges of the upper heat dissipation vents. Two mirror-image first mounting plates are fixed to the periphery of the heat dissipation fan, and the first mounting plates are embedded in the mounting grooves. Two mirror-image second mounting plates are fixed to the periphery of the heat dissipation sound insulation board, and the two second mounting plates are respectively located on the top of the two first mounting plates, and the first mounting plates and the second mounting plates are fixed to the top of the box body by bolts.

[0010] Preferably, an upper dustproof net is embedded on the top of the heat dissipation and sound insulation board, and the upper dustproof net covers the annular heat dissipation port and a plurality of heat dissipation holes.

[0011] Preferably, the front and back sides of the box body are hollowed out and are respectively embedded with a front sound insulation board and a rear sound insulation board, and interface grooves are respectively provided on one side of the top of the box body close to the front sound insulation board and the rear sound insulation board.

[0012] Preferably, a plurality of lower heat dissipation openings are provided at the bottom of the box body, lower dustproof nets are embedded in the lower heat dissipation openings, and shock-absorbing foot pads are respectively connected to the four corners of the bottom of the box body.

[0013] Preferably, soundproof glass is embedded on both sides of the box body, and the box body is a galvanized plate with soundproof cotton sandwiched in the middle.

[0014] Preferably, the plurality of heat dissipation holes in the annular array are vertically arranged.

[0015] Preferably, the heat dissipation holes in the annular array are arranged obliquely to spread out in all directions.

[0016] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0017] 1. The utility model has two upper heat dissipation vents and a heat dissipation fan on the top of the box, and two lower heat dissipation vents on the bottom. The hot air in various places inside the box will automatically rise and be discharged through the heat dissipation fan, and a good ventilation and heat dissipation effect can be achieved through the upper heat dissipation vents and the lower heat dissipation vents;

[0018] 2. The fan of the upper heat dissipation outlet is provided with a heat dissipation sound insulation board above the heat dissipation fan, a plurality of heat dissipation holes corresponding to the heat dissipation fan are opened at the center of the heat dissipation sound insulation board, an annular heat dissipation outlet is opened near the periphery of the heat dissipation sound insulation board, and an M-shaped guide surface is provided on the inner surface of the heat dissipation sound insulation board. When the heat dissipation fan blows out hot air upward, part of the hot air is discharged from the heat dissipation holes, and the other part is discharged from the annular heat dissipation outlet through the guide surface, and the noise sound waves are transmitted in the same way. The heat dissipation sound insulation board can isolate a certain noise of the heat dissipation fan and ensure a good heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 This is a front sectional view of the utility model;

[0021] Figure 3 This is a schematic diagram of the top of the box of the utility model;

[0022] Figure 4 This is the box structure diagram of the utility model;

[0023] Among them: 1. Box body; 2. Soundproof glass; 3. Front soundproof board; 4. Rear soundproof board; 5. Upper heat dissipation vent; 6. Lower heat dissipation vent; 7. Cooling fan; 8. Installation slot; 9. First installation plate; 10. Second installation plate; 11. Upper dustproof net; 12. Lower dustproof net; 13. Heat dissipation hole; 14. Ring heat dissipation vent; 15. Bolt; 16. Guide surface; 17. Shock-absorbing foot pad; 18. Interface slot; 19. Galvanized sheet; 20. Sound insulation cotton; 21. Heat dissipation and sound insulation board. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified. Example 1

[0025] like Figure 1-4As shown, the utility model provides a silent chassis with noise reduction function, including a box body 1, a plurality of heat dissipation fans 7 are embedded on the top of the box body 1, a circular heat dissipation sound insulation board 21 is fixed above the heat dissipation fans 7, a plurality of heat dissipation holes 13 in a circular array are opened at the center of the heat dissipation sound insulation board 21, and an annular heat dissipation hole 13 is opened near the edge, and an M-shaped guide surface 16 is provided on the inner surface of the heat dissipation sound insulation board 21.

[0026] In this embodiment, specifically, a plurality of upper heat dissipation vents 5 are provided on the top of the box body 1, and two mirror-image mounting grooves 8 are provided on the edge of the upper heat dissipation vents 5. Two mirror-image first mounting pieces 9 are fixed to the periphery of the heat dissipation fan 7, and the first mounting piece 9 is embedded in the mounting groove 8. Two mirror-image second mounting pieces 10 are fixed to the periphery of the heat dissipation sound insulation board 21, and the two second mounting pieces 10 are respectively located on the top of the two first mounting pieces 9, and the first mounting piece 9 and the second mounting piece 10 are fixed to the top of the box body 1 by bolts 15;

[0027] The heat dissipation sound insulation board 21 and the heat dissipation fan 7 are stacked, the first mounting plate 9 and the second mounting plate 10 of the two are stacked and fixed to the box body 1 with bolts 15, so that the heat dissipation sound insulation board 21 and the heat dissipation fan 7 can be easily disassembled and assembled.

[0028] In this embodiment, specifically, an upper dustproof net 11 is embedded on the top of the heat dissipation and sound insulation board 21 , and the upper dustproof net 11 covers the annular heat dissipation port 14 and a plurality of heat dissipation holes 13 .

[0029] In this embodiment, specifically, the front and back sides of the box body 1 are hollowed out, and are respectively embedded with a front sound insulation board 3 and a rear sound insulation board 4, and an interface groove 18 is respectively opened on one side of the top of the box body 1 close to the front sound insulation board 3 and the rear sound insulation board 4;

[0030] Among them, the front sound insulation board 3, the rear sound insulation board 4 and the heat dissipation sound insulation board 21 are all sound insulation boards based on the common sound insulation principle. When sound waves encounter the sound insulation boards, part of the sound energy is absorbed, reflected and scattered by the sound insulation board material, while the ability of the remaining sound energy to be transmitted through the sound insulation board is suppressed.

[0031] In this embodiment, specifically, a plurality of lower heat dissipation openings 6 are provided at the bottom of the box body 1, and a lower dustproof net 12 is embedded at the lower heat dissipation openings 6. Shock-absorbing foot pads 17 are respectively connected to the four corners of the bottom of the box body 1;

[0032] The shock-absorbing foot pads 17 can reduce the vibration transmission of the box 1 to the placement platform, further reducing noise.

[0033] In this embodiment, specifically, soundproof glass 2 is embedded on both sides of the box body 1, and the box body 1 is a galvanized plate 19 with soundproof cotton 20 sandwiched in the middle;

[0034] The soundproof glass 2 reduces noise while facilitating observation of components such as the main board inside the box 1 , and is suitable for DIY enthusiasts, who can observe decorative parts such as RGB lights.

[0035] In this embodiment, specifically, a plurality of heat dissipation holes 13 in a ring array are vertically arranged;

[0036] Among them, the vertical heat dissipation holes 13 can directly dissipate the hot air blown out by the heat dissipation fan 7, but sound waves will also be directly transmitted from the heat dissipation holes 13, so the heat dissipation effect is relatively high and the sound insulation effect is relatively poor. The heat dissipation fan 7 uses a silent fan. Example 2

[0037] The difference between this embodiment and the first embodiment is that: the heat dissipation holes 13 in the annular array are arranged obliquely, with a tendency to spread out in all directions, which is not shown in the figure;

[0038] Among them, several heat dissipation holes 13 that spread out in all directions are all inclined. The hot air blown out by the heat dissipation fan 7 will not be discharged directly vertically upward from the heat dissipation holes 13, but will be guided out inside the inclined heat dissipation holes 13, so the heat dissipation effect is poor, but the sound waves will not be directly transmitted vertically from the heat dissipation holes 13, but will be continuously scattered, reflected and absorbed in the heat dissipation holes 13, and finally only a small amount of sound waves will be transmitted, so the sound insulation effect is outstanding.

[0039] Working principle: When in use, the computer motherboard and other components are installed in the box body 1 according to the common installation method. When the internal components of the case are working, heat and noise are generated. The noise is isolated by the box body 1 itself, the front sound insulation board 3, the rear sound insulation board 4 and the sound insulation glass 2, and the noise is initially reduced. At this time, the cooling fans 7 on the top of the box body 1 are turned on, and the heat inside the box body 1 naturally rises. The cooling fans 7 blow the hot air upward, and part of the hot air is discharged through the cooling holes 13 of the heat dissipation sound insulation board 21. Because the bottom surface of the heat dissipation sound insulation board 21 is M-shaped, and the cooling holes 13 are located below the M shape The convex surface and the annular heat dissipation hole 13 are located on the concave surface below the M shape, and another part of the hot air will be guided by the convex surface to the concave surface and discharged from the annular heat dissipation hole 13; however, no matter how quiet the heat dissipation fan 7 is, it will always generate noise, especially after aging, when the sound waves of the noise are transmitted upward, a part of it will be absorbed by the heat dissipation sound insulation board 21, and the other part will pass through a number of heat dissipation holes 13 and the annular heat dissipation port 14 and be transmitted outward, and a part of it will also be absorbed when passing through, thereby reducing the noise of the heat dissipation fan 7, and the noise in the remaining directions will be transmitted to the box body 1 and absorbed by the box body 1.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A silent case with noise reduction function, comprising a case body (1), characterized in that: A plurality of heat dissipation fans (7) are embedded on the top of the box body (1); a circular heat dissipation sound insulation board (21) is fixed above the heat dissipation fans (7); a plurality of heat dissipation holes (13) in a circular array are provided at the center of the heat dissipation sound insulation board (21); and a circular heat dissipation hole (13) is provided near the edge; and an M-shaped flow guide surface (16) is provided on the inner surface of the heat dissipation sound insulation board (21).

2. The silent chassis with noise reduction function according to claim 1, characterized in that: The top of the box body (1) is provided with a plurality of upper heat dissipation openings (5), and the edges of the upper heat dissipation openings (5) are provided with two mirror-image mounting grooves (8). The periphery of the heat dissipation fan (7) is fixed with two mirror-image first mounting plates (9), and the first mounting plates (9) are embedded in the mounting grooves (8). The periphery of the heat dissipation sound insulation board (21) is fixed with two mirror-image second mounting plates (10), and the two second mounting plates (10) are respectively located on the tops of the two first mounting plates (9), and the first mounting plates (9) and the second mounting plates (10) are fixed to the top of the box body (1) by bolts (15).

3. The silent chassis with noise reduction function according to claim 1, characterized in that: An upper dustproof net (11) is embedded on the top of the heat dissipation and sound insulation board (21), and the upper dustproof net (11) covers the annular heat dissipation opening (14) and a plurality of heat dissipation holes (13).

4. The silent chassis with noise reduction function according to claim 1, characterized in that: The front and back sides of the box body (1) are hollowed out and are respectively embedded with a front sound insulation board (3) and a rear sound insulation board (4); the top of the box body (1) is provided with an interface groove (18) on one side close to the front sound insulation board (3) and on the rear sound insulation board (4).

5. The silent chassis with noise reduction function according to claim 1, characterized in that: The bottom of the box (1) is provided with a plurality of lower heat dissipation openings (6), and lower dustproof nets (12) are embedded in the lower heat dissipation openings (6). Shock-absorbing foot pads (17) are respectively connected to the four corners of the bottom of the box (1).

6. The silent chassis with noise reduction function according to claim 1, characterized in that: Soundproof glass (2) is embedded on both sides of the box body (1), and the box body (1) is a galvanized plate (19) with soundproof cotton (20) sandwiched in the middle.

7. The silent chassis with noise reduction function according to claim 1, characterized in that: A plurality of heat dissipation holes (13) in a ring array are arranged vertically.

8. The silent chassis with noise reduction function according to claim 1, characterized in that: The plurality of heat dissipation holes (13) in the annular array are arranged obliquely, with a tendency to spread outwards.

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