Centrifugal radiator

Abstract

The invention provides a centrifugal radiator which is characterized in that a plurality of fins are arranged, a radiating air channel is formed between every two adjacent fins, a radiating fan is mounted beside the array formed by the fins and the radiating air channels, an air inlet channel is reserved between the radiating fan and the array, and the radiating fan centrifugally discharges air, so that the radiating efficiency is improved. One part of the blown airflow is blown to the rear section of the air inlet duct from the front section of the air inlet duct, and the other part of the blown airflow is directly blown to the rear section of the air inlet duct; one part of airflow blown to the air inlet duct front section is blown to the arrangement front section through the air inlet duct front section, the other part of airflow blown to the arrangement rear section through the air inlet duct rear section, the distance between the fins arranged at the rear part and the rotating shaft of the cooling fan is farther than that between the fins arranged at the front part, the centrifugal air outlet direction of the fan is conformed, and springback caused by direct impact of outlet air on the fins is relieved; when dust blocks the front section of the air duct, the fan centrifugally discharges air to generate enough airflow which blows to the rear section of the air inlet duct for radiating the fins; every two adjacent fins serve as the front wall and the rear wall of the heat dissipation air channel, the starting end of the rear wall is far away from the starting end of the front wall, and blocking is not prone to occurring.

Description

Technical Field

[0001] The present invention relates to the field of heat dissipation of electronic devices, and particularly to a centrifugal radiator. Background Art

[0002] In the field of heat dissipation of electronic devices, centrifugal radiators are widely used due to advantages such as high efficiency and compact structure. When a traditional centrifugal radiator works, a centrifugal cooling fan drives external air to axially enter. By means of the centrifugal effect generated by the rotation of the fan blades, the air is thrown out circumferentially, forming a swirling scattered air flow around the fan blades. A number of fins are arranged beside the centrifugal cooling fan. Each fin is arranged on a heat dissipation plate and is parallel to each other to form a heat dissipation air duct. There is an air inlet air duct in the front-back direction between the cooling fan and this arrangement. The centrifugal cooling fan rotates circumferentially to discharge air centrifugally. Specifically, a part of the air blown out from the front section of the air inlet air duct blows towards the front section of the arrangement, and another part blows towards the rear section of the arrangement through the rear section of the air inlet air duct, taking away heat.

[0003] As the radiator continues to operate, the centrifugal cooling fan discharges air tangentially towards the fins at the starting end of the fin arrangement. The dust carried will mainly adhere and accumulate on the front section of the air inlet air duct at the starting end of the fin arrangement. Then the air flow flowing into the rear section of the air inlet air duct will be greatly reduced, resulting in a significant decrease in the heat dissipation efficiency of the radiator, affecting the normal operation of the device, and shortening the service life of the device components. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a centrifugal radiator that can significantly reduce the influence of dust accumulation causing air duct blockage on the radiator, and improve the heat dissipation efficiency and the reliability of device operation.

[0005] To solve the above technical problem, the present invention provides a centrifugal radiator, which arranges multiple fins. A heat dissipation air duct is formed between adjacent two fins. Multiple fins form at least two heat dissipation air ducts. Each fin and the heat dissipation air duct between adjacent fins are arranged front and back. A cooling fan is installed beside the arrangement formed by the fins and the heat dissipation air duct. There is an air inlet air duct in the front-back direction between the cooling fan and this arrangement. The cooling fan rotates circumferentially to discharge air centrifugally. A part of the blown air flow blows from the front section of the air inlet air duct towards the rear section of the air inlet air duct, and another part directly blows towards the rear section of the air inlet air duct; the air flow blowing towards the front section of the air inlet air duct blows from a part of the front section of the air inlet air duct towards the front section of the arrangement, and another part blows towards the rear section of the arrangement through the rear section of the air inlet air duct. The fins arranged at the back are farther away from the rotation axis of the cooling fan than the fins arranged at the front.

[0006] Further, it includes a fin plate, and the fins are arranged on the fin plate.

[0007] Further, a fan plate is installed on the fin plate, and the cooling fan is arranged on the fan plate.

[0008] Further, a power-taking part is provided on the fin plate, and a power supply part for taking power from the power-taking part is provided. Correspondingly, a power-taking part is provided on the fan plate and connected to the cooling fan. When the fan plate is mounted on the fin plate, the power-taking part of the fan plate is connected to the power supply part of the fin plate to supply power for the operation of the cooling fan.

[0009] Further, a first card slot is provided on the fin plate surface near the side plate where the cooling fan is located. A boss flush with the protruding height of the fins is formed on the front side and / or the rear side of the fin plate surface in the arrangement direction, and a second clamping groove is provided on the boss. On the fan plate, a flanging is formed by folding the side plate near the cooling fan towards the fin plate, and a first clamping part extends from the end of the flanging towards the fin plate. A second clamping part extends from the side plate near the fins of the fan plate towards the fin plate. For the fin plate and the fan plate, the first clamping part and the first card slot are clamped with each other, and the second clamping part and the second card slot are clamped with each other.

[0010] Further, a buckle part protrudes from the fin plate, and a buckle extends from the buckle part towards the flanging of the fan plate. Correspondingly, a clamping hole is provided on the flanging, and the buckle is inserted into the clamping hole.

[0011] Further, the cooling fan is a turbo fan.

[0012] In the centrifugal radiator provided by the present invention, the fins arranged at the rear are farther away from the rotation axis of the cooling fan than the fins arranged at the front, and the following beneficial effects are produced:

[0013] (1) The fins gradually move away from the rotation axis of the cooling fan from front to back, conforming to the circumferential rotation centrifugal air outlet direction, reducing the influence of the air outlet directly impacting the fins and causing rebound on the heat dissipation efficiency;

[0014] (2) The rear section of the air inlet duct is wide enough. Even if dust accumulates in a group and blocks the front section of the duct, the centrifugal air outlet of the fan rotating circumferentially still has enough air flow to blow towards the rear section of the air inlet duct to dissipate heat from the fins;

[0015] (3) The two adjacent front and rear fins serve as the front wall and the rear wall of the heat dissipation duct. The starting end of the rear wall is far away from the starting end of the front wall, and it is not easily completely blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the centrifugal radiator;

[0017] Figure 2 is an exploded view of a part of the centrifugal radiator;

[0018] Figure 3 is a schematic structural diagram of the fin plate;

[0019] Figure 4 is a schematic structural diagram of the fan plate;

[0020] Figure 5It is a schematic structural diagram of the back side of the fin plate;

[0021] Figure 6 It is an air flow scattering diagram when the centrifugal radiator is working (without thick dust);

[0022] Figure 7 It is an air flow scattering diagram when the centrifugal radiator is working (with thick dust);

[0023] Figure 8 It is Figure 6 A partial enlarged view of part A in the partial cross-sectional view.

[0024] Reference numerals: 1, fin plate; 11, fins; 12, arrangement; 13, second card slot; 14, buckle part; 141, buckle; 15, first card slot; 16, fin plate socket; 17, fin plate plug; 18, air inlet duct; 181, front section of the air inlet duct; 182, rear section of the air inlet duct; 19, boss; 2, fan plate; 21, cooling fan; 22, air inlet; 23, second fastener; 24, fastening hole; 25, first fastener; 26, fan plate plug; 27, fan housing; 271, air outlet; 29, flanging; 3, thick dust. Specific embodiments

[0025] The following further elaborates on the present invention in detail in conjunction with specific embodiments.

[0026] The centrifugal radiator is as Figure 1 , 2 shown, including a fin plate 1 and a fan plate 2 mounted on the fin plate 1. As shown in Figure 3 , multiple fins 11 are arranged from front to back on the front side of the fin plate 1, and a heat dissipation duct is formed between adjacent fins 11. Each fin 11 and the heat dissipation duct between adjacent fins 11 form an arrangement 12 in the front and back. A space is left on the left side of the front side of the fin plate 1 to accommodate the turbine fan 21. As shown in Figure 4 , correspondingly, a fan housing 27 is provided on the left side of itself. As shown in Figure 6 , the turbine fan 21 is provided in the fan housing 27, and its rotating shaft is perpendicular to the fan plate 2. As shown in Figure 2 , the back side of the fan plate 2 faces and is close to the front side of the fin plate 1 to achieve installation. As shown in Figure 4 , the fan housing 27 is provided with an air outlet 271. When the fan plate 2 is installed on the fin plate 1 (see Figure 6 , Figure 6 the fan plate 2 is not shown), then the air outlet 271 of the fan housing 27 faces the arrangement 12.

[0027] As shown in Figure 3As shown, there are two first card slots 15, one in front of the other, on the left side edge of the front surface of the fin plate 1. On the front side and the rear side of the row 12, there are bosses 19 that are flush with the protruding height of the fins 11, and second card slots 13 are formed on the bosses 19. As Figure 4 shown, a flanging 29 is formed by folding the left side edge of the fan plate 2 towards its back surface, and two first engaging members 25 extend from the end of the flanging 29. Two second engaging members 23 extend from the right side edge of the fan plate 2 towards the fin plate 1. When the back surface of the fan plate 2 faces and is close to the front surface of the fin plate 1, the first engaging member 25 and the first card slot 15 are engaged with each other, and the second engaging member 23 and the second card slot 13 are engaged with each other, so as to install the fan plate 2 onto the fin plate 1. As Figure 2 shown, a buckle portion 14 protrudes from the left side edge of the front surface of the fin plate 1, and a buckle 141 extends leftward from the buckle portion 14; as for the fan plate 2 Figure 4 shown, a clamping hole 24 is correspondingly provided on its flanging 29, and the buckle 141 is snapped into the clamping hole 24 to further fix the fan plate 2 and prevent it from disengaging in the front surface direction.

[0028] As shown on the front surface of the fan plate 2 Figure 2 shown, an air inlet 22 is formed at a position corresponding to the turbo fan 21 and leads to the turbo fan 21. The turbo fan 21 is installed onto the fin plate 1. As Figure 6 shown (the fan plate 2 is not shown in the figure), there is an air inlet duct 18 left between the fan box 27 and the row 12. When the turbo fan 21 operates, air flows axially into the air inlet 22 (see Figure 2 ), rotates circumferentially in the clockwise direction, and centrifugally discharges air from the air outlet 271 towards the air inlet duct 18. A part of the discharged air is blown from the front section 181 of the air inlet duct towards the rear section 182 of the air inlet duct, and the other part is directly blown towards the rear section 182 of the air inlet duct. The air blown towards the front section 181 of the air inlet duct is partly blown towards the front section of the row 12, and the other part is blown towards the rear section of the row 12 via the rear section 182 of the air inlet duct; the air directly blown towards the rear section 182 of the air inlet duct is directly blown towards the rear section of the row 12 through the rear section 182 of the air inlet duct. The discharged air dissipates heat from the fins 11 in the row 12. When the turbo fan 21 operates continuously for a long time, the dust carried by its air flow mainly accumulates in a mass in the front section 181 of the air inlet duct, blocking the front section 181 of the air inlet duct, so that the air flow flowing into the rear section 182 of the air inlet duct is greatly reduced, resulting in a significant decrease in the heat dissipation efficiency of the radiator. For this reason, the row 12 is designed as Figure 6 shown, the fins 11 arranged at the back are farther from the rotation axis of the turbo fan 21 than the fins 11 arranged at the front, and the row 12 gradually moves away from the rotation axis of the turbo fan 21 from front to back. Such an arrangement of the fins 11 not only conforms to the circumferentially rotating centrifugal air outlet direction, reduces the influence of the air outlet rebounding due to directly hitting the fins 11 on the heat dissipation efficiency, but also makes the rear section 182 of the air inlet duct wide enough to increase the amount of this part of the air flow that can be directly blown towards the rear section 182 of the air inlet duct. Even if thick dust 3 Figure 7As shown, the piled-up mass blocks the front section 181 of the air inlet duct, but there is still sufficient air flow blowing towards the rear section of the array 12 to dissipate heat from the fins 11. In addition, compared with traditional turbine radiators in this embodiment, the fins 11 arranged at the rear are farther from the rotation axis of the turbine fan 21 than the fins 11 arranged at the front. As Figure 8 shown, the distance D between the starting end of the rear wall and the starting end of the front wall is larger than the width d of the heat dissipation duct, and it is not easily completely blocked.

[0029] The fin plate plug 17 on the back of the fin plate 1 (see Figure 5 ) draws power from the outside to supply power to the fin plate socket 16 on the front of the fin plate 1 (see Figure 3 ). Corresponding to this, on the back of the fan plate 2 (see Figure 4 ), a fan plate plug 26 for drawing power from the fin plate socket 16 is provided beside the fan box 27. The fan plate plug 26 is connected to the turbine fan 21 inside the fan box 27. When the fan plate 2 is installed on the fin plate 1, the fan plate plug 26 is connected to the fin plate socket 16 to draw power for the operation of the turbine fan 21.

[0030] As described above, this is only the implementation mode of the present invention, and does not limit the scope of patent protection. Those skilled in the art make non-substantive changes or substitutions based on the present invention, and still fall within the scope of patent protection.

Claims

1. A centrifugal radiator, wherein a plurality of fins (11) are arranged, a heat dissipation duct is formed between two adjacent fins (11), the plurality of fins (11) form at least two heat dissipation ducts, each fin (11) and the heat dissipation duct between adjacent fins (11) are arranged front to back, a heat dissipation fan (21) is installed beside the arrangement formed by the fins (11) and the heat dissipation duct, an air inlet duct (18) in the front to back direction is reserved between the heat dissipation fan (21) and the arrangement, the heat dissipation fan (21) rotates circumferentially to discharge centrifugal air, a part of the air flow blown out is blown from the front section (181) of the air inlet duct to the rear section (182) of the air inlet duct, and another part is blown directly to the rear section (182) of the air inlet duct; the air flow blown to the front section (181) of the air inlet duct is blown from the front section (181) of the air inlet duct to the front section of the arrangement, and another part is blown to the rear section of the arrangement via the rear section (182) of the air inlet duct, characterized in that: The fins (11) arranged at the rear are farther from the rotation axis of the heat dissipation fan (21) than the fins (11) arranged at the front.

2. The centrifugal radiator according to claim 1, characterized in that: It comprises a fin plate (1), on which the fins (11) are arranged.

3. The centrifugal radiator according to claim 2, characterized in that: A fan plate (2) is mounted on the fin plate (1), and the heat dissipation fan (21) is arranged on the fan plate (2).

4. The centrifugal radiator according to claim 3, characterized in that: The fin plate (1) is provided with a power taking part and a power supply part for taking power from the power taking part, and the fan plate (2) is correspondingly provided with a power taking part connected to the heat dissipation fan (21). When the fan plate (2) is mounted on the fin plate (1), the power taking part of the fan plate (2) is connected to the power supply part of the fin plate (1) to take power for the heat dissipation fan (21) to operate.

5. The centrifugal radiator according to claim 3, characterized in that: The fin plate (1) is provided with a first slot (15) at a side plate edge close to the cooling fan (21), and a boss (19) is formed on the fin plate (1) at the front and / or rear side of the arrangement, which is flush with the protruding height of the fin (11), and a second slot (13) is provided on the boss (19); the side plate edge close to the cooling fan (21) on the fan plate (2) is folded toward the fin plate (1) to form a flange (29), and a first clamping member (25) is extended at the end of the flange (29) toward the fin plate (1), and a second clamping member (23) is extended toward the fin plate (1) at the side plate edge close to the fin (11) on the fan plate (2); the first clamping member (25) and the first slot (15) of the fin plate (1) and the fan plate (2) are mutually clamped, and the second clamping member (23) and the second slot (13) are mutually clamped.

6. The centrifugal radiator according to claim 5, characterized in that: The fin plate (1) is protruded with a buckle portion (14), the buckle portion (14) is provided with a buckle (141) extending toward the flange (29) of the fan plate (2), the flange (29) is correspondingly provided with a buckle hole (24), and the buckle (141) is buckled into the buckle hole (24).

7. The centrifugal radiator according to claim 1, characterized in that: The heat dissipation fan (21) is a turbo fan.

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