Efficient air cooler

Abstract

The utility model discloses an efficient air cooler which comprises a fan shell, a motor fixedly connected to the inner wall of the fan shell and a hub with blades, a first cavity is formed in the hub, an output shaft of the motor penetrates through the fan shell and is fixedly connected with the inner wall of the first cavity, and a rotating barrel internally provided with a second cavity is fixedly connected to the fan shell. The rotating barrel is fixedly connected with a water inlet pipe, the water inlet pipe is communicated with the second cavity, the rotating barrel is fixedly connected with a water drainage pipe, and the water drainage pipe is communicated with the second cavity. The water inlet pipe is used for conveying cooling water to enter the second cavity to cool the hub and the blades through the first cavity, efficient heat absorption is achieved through the high heat capacity characteristic of the water cooling medium, and particularly for the thermal stress concentration area of the joint of the blades and the hub, the hidden danger of material fatigue caused by local high temperature can be accurately eliminated.

Description

Technical Field

[0001] This utility model relates to the technical field of air cooler equipment, and in particular to a high-efficiency air cooler. Background Technology

[0002] Traditional air coolers mostly use a combination of forced convection and metal heat sinks for cooling, but their heat dissipation efficiency is limited by the specific heat capacity of air and the heat conduction path.

[0003] In existing technologies, air-cooled systems generally suffer from three technical bottlenecks: First, when the hub assembly operates at high speed continuously, thermal stress concentration areas are easily formed at the junction of the blades and the hub, making it difficult for conventional heat dissipation methods to achieve targeted cooling; Second, additional heat dissipation devices often use external cooling pipes, which complicates the equipment structure and increases the difficulty of adjusting the rotational dynamic balance; Third, the heat conduction path of the blade assembly is singular, relying solely on the thermal conductivity of the material itself, and cannot establish an efficient active heat dissipation channel. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency air cooler that can cool the junction of the blades and the hub.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a high-efficiency air cooler, comprising: a fan housing, a motor fixedly connected to the inner wall of the fan housing, and a hub with blades.

[0006] The hub has an internal cavity, and the motor output shaft passes through the fan housing and is fixedly connected to the inner wall of the cavity.

[0007] A rotating barrel with an internal chamber two is fixedly connected to the outer casing of the fan, and the internal chamber two communicates with the internal chamber one;

[0008] A water inlet pipe is fixedly connected to the rotating barrel, and the water inlet pipe is connected to the second chamber.

[0009] A drain pipe is fixedly connected to the rotating barrel, and the drain pipe communicates with the chamber in two directions. The inlet pipe is used to transport cooling water into the chamber, where it cools a pair of hubs and blades.

[0010] Preferably, a limit support rod is detachably and fixedly connected to the inner wall of the fan housing, and one end of the limit support rod is fixedly connected to the rotating bucket.

[0011] Preferably, a bolt is rotatably connected to the limiting support rod, and one end of the bolt is threadedly connected to the rotating barrel.

[0012] Preferably, a sealing ring is fixedly connected to the side wall of the rotating barrel, and the sealing ring is rotatably connected to the inner wall of the hub.

[0013] Preferably, a temperature-conducting rod is fixedly connected to the inner wall of the blade, and a temperature-conducting block is fixedly connected to one end of the temperature-conducting rod. One end of the temperature-conducting block is located inside the cavity of the fan casing.

[0014] Preferably, the hub includes a main housing and a secondary housing, which are connected by bolts, and the blade is detachably and fixedly connected to the main housing and the secondary housing.

[0015] Preferably, two screws are rotatably connected to the blade, the two screws are located above the main housing and the secondary housing, and the two screws are threadedly connected to the main housing and the secondary housing respectively.

[0016] Preferably, a sealing ring is fixedly connected between the main housing and the secondary housing.

[0017] Preferably, a support base is fixedly connected to the fan housing, the support base is rotatably connected to the hub, and a ball bearing is rotatably connected to the hub, the ball bearing being in contact with the support base.

[0018] The beneficial effects of this utility model are:

[0019] 1. Through the through-flow design of the impeller's internal chamber and the rotating drum chamber, a closed dynamic water-cooling circulation channel is formed. The cooling water flows autonomously under the centrifugal force of the impeller's rotation, directly enveloping the core heat-generating area of ​​the impeller for heat exchange. Compared with traditional external cooling pipes, this structure avoids the need for additional rotating sealing components and achieves efficient heat absorption through the high heat capacity of the water-cooling medium. Especially for the area of ​​concentrated thermal stress at the junction of the blades and the hub, it can precisely eliminate the potential material fatigue caused by localized high temperatures.

[0020] 2. The main shell and secondary shell are connected by bolts in separate sections. With the blades positioned by double screws, the impeller assembly can be disassembled and installed quickly and without damage. During maintenance, only the connecting parts need to be removed to replace the blades or clean the chamber. No disassembly equipment is required. A sealing ring is added to the joint surface of the two sections to ensure airtightness and avoid the leakage defects of traditional split structures, which significantly reduces downtime and maintenance time and economic costs.

[0021] 3. The blade inner wall is equipped with a combination of heat-conducting rods and heat-conducting blocks, which directly conducts heat from the blade surface to the water-cooled chamber interface through the metal heat conductor. This breaks through the limitations of traditional single-material heat conduction paths. This design constructs multi-level heat transfer channels inside the blade, which greatly shortens the heat migration distance and effectively avoids the risk of deformation caused by local overheating of the blade. It is especially suitable for long-term high-frequency operation of large-size impellers. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of one embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram showing the position of the bolts in this utility model;

[0024] Figure 3 This is a schematic diagram showing the location of the first chamber in this utility model.

[0025] Reference numerals in the attached drawings: 1. Fan housing; 2. Motor; 3. Blade; 4. Hub; 5. Chamber 1; 6. Chamber 2; 7. Rotating bucket; 8. Inlet pipe; 9. Drain pipe; 10. Limiting support rod; 11. Bolt; 12. Sealing ring; 14. Temperature guiding rod; 15. Temperature guiding block; 16. Main housing; 17. Secondary housing; 18. Screw; 19. Sealing ring; 20. Support base; 21. Ball bearing. Detailed Implementation

[0026] The following description is only a preferred embodiment of the present utility model. The scope of protection is not limited to this embodiment. All technical solutions that fall within the scope of the present utility model should be protected by the present utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present utility model should also be considered within the scope of protection of the present utility model.

[0027] It should be noted that in this document, relational terms such as first and second, or "connecting plate one, connecting plate two," are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0028] The directional terms mentioned in this embodiment, such as "up," "down," "left," and "right," are merely used to help those skilled in the art understand the relationships between various features or parts in conjunction with the accompanying drawings.

[0029] In this embodiment, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] like Figures 1 to 3 A high-efficiency air cooler includes: a fan housing 1, a motor 2 fixedly connected to the inner wall of the fan housing 1, and a hub 4 with blades 3, wherein the motor 2 is used to drive the hub 4 to rotate.

[0031] The air cooler in this utility model also includes: a rotating drum 7, a water inlet pipe 8, and a drain pipe 9;

[0032] Chamber 1 (5) is located inside hub 4. The output shaft of motor 2 passes through the fan housing 1 and is fixedly connected to the inner wall of chamber 1 (5), driving hub 4 to rotate. A rotating barrel 7 with an internal chamber 2 (6) is fixedly connected to the fan housing 1. Chamber 2 (6) communicates with chamber 1 (5). A water inlet pipe 8 is fixedly connected to rotating barrel 7, communicating with chamber 2 (6). A drain pipe 9 is fixedly connected to rotating barrel 7, communicating with chamber 2 (6). The water inlet pipe 8 is used to transmit cooling water into chamber 2 (6) and then through chamber 1 (5) to cool hub 4 and blades 3. Therefore, cooling water can be transmitted into chamber 1 (5) through water in chamber 1 (5) and into chamber 2 (6), thus cooling hub 4. To reduce overheating between the hub 4 and the blade 3, it is worth mentioning that the hub 4 includes a main housing 16 and a secondary housing 17, which are connected by bolts 11. The blade 3 is detachably and fixedly connected to the main housing 16 and the secondary housing 17. Two screws 18 are rotatably connected to the blade 3. The two screws 18 are located above the main housing 16 and the secondary housing 17, and are threaded to the main housing 16 and the secondary housing 17 respectively. By removing the bolts 11 and the screws 18, it is easy for personnel to disassemble the blade 3. A drain pipe 9 is fixedly connected to the rotating barrel 7. The drain pipe 9 is connected to the two chambers 6 in the same direction and is used to drain cooling water.

[0033] Specifically, a limiting support rod 10 is disassembled and fixedly connected to the inner wall of the fan housing 1. One end of the limiting support rod 10 is fixedly connected to the rotating barrel 7. A bolt 11 is rotatably connected to the limiting support rod 10. One end of the bolt 11 is threadedly connected to the rotating barrel 7. The limiting support rod 10 is used to support the rotating barrel 7, reduce the rotation of the rotating barrel 7, and also support the rotating barrel 7.

[0034] Specifically, a temperature-conducting rod 14 is fixedly connected to the inner wall of the blade 3. A temperature-conducting block 15 is fixedly connected to one end of the temperature-conducting rod 14. One end of the temperature-conducting block 15 is located in the chamber 5 of the fan housing 1. The temperature-conducting block 15 can conduct heat to the temperature-conducting rod 14, so that the temperature-conducting rod 14 conducts heat to the blade 3, thereby achieving the cooling of the blade 3. That is, it can cool the airflow when it comes into contact with the blade 3, and it can also cool the blade 3.

[0035] Specifically, a sealing ring 12 is fixedly connected to the side wall of the rotating barrel 7. The sealing ring 12 is rotatably connected to the inner wall of the hub 4. The sealing ring 12 rotates on the inner wall of the hub 4 to increase the sealing effect between the rotating barrels 7.

[0036] Specifically, a sealing ring 19 is fixedly connected between the main housing 16 and the secondary housing 17, which can increase the seal between the main housing 16 and the secondary housing 17.

[0037] Specifically, a support base 20 is fixedly connected to the fan housing 1. The support base 20 is rotatably connected to the hub 4. A ball bearing 21 is rotatably connected to the hub 4. The ball bearing 21 is in contact with the support base 20. The support base 20 is used to support the hub 4.

[0038] The principle of this utility model is as follows: Cooling water is transmitted through the inlet pipe 8, enters the first chamber 5 and then enters the second chamber 6, and is discharged through the drain pipe 9. Once the cooling water enters the second chamber 6 through the first chamber 5, it will cool the hub 4. Once the hub 4 is cooled, it can cool the blades 3, thereby achieving cooling between the hub 4 and the blades 3, and also cooling the incoming airflow and the blades 3, thus achieving airflow cooling.

[0039] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A high-efficiency air cooler, comprising: a fan housing (1), a motor (2) fixedly connected to the inner wall of the fan housing (1), and a hub (4) with blades (3), characterized in that, The hub (4) has a built-in chamber (5), and the output shaft of the motor (2) passes through the fan housing (1) and is fixedly connected to the inner wall of the chamber (5); A rotating barrel (7) with an internal chamber two (6) is fixedly connected to the outer shell (1) of the fan. The chamber two (6) is connected to the chamber one (5). A water inlet pipe (8) is fixedly connected to the rotating barrel (7), and the water inlet pipe (8) is connected to the second chamber (6); A drain pipe (9) is fixedly connected to the rotating bucket (7). The drain pipe (9) is connected to the second chamber (6). The inlet pipe (8) is used to transport cooling water into the second chamber (6) and cool the hub (4) and blades (3) through the first chamber (5).

2. The high-efficiency air cooler according to claim 1, characterized in that, A limiting support rod (10) is detached and fixedly connected to the inner wall of the fan housing (1), and one end of the limiting support rod (10) is fixedly connected to the rotating bucket (7).

3. The high-efficiency air cooler according to claim 2, characterized in that, A bolt (11) is rotatably connected to the limiting support rod (10), and one end of the bolt (11) is threadedly connected to the rotating barrel (7).

4. The high-efficiency air cooler according to claim 1, characterized in that, A sealing ring (12) is fixedly connected to the side wall of the rotating barrel (7), and the sealing ring (12) is rotatably connected to the inner wall of the hub (4).

5. A high-efficiency air cooler according to claim 1, characterized in that, A temperature-conducting rod (14) is fixedly connected to the inner wall of the blade (3), and a temperature-conducting block (15) is fixedly connected to one end of the temperature-conducting rod (14). One end of the temperature-conducting block (15) is located in the chamber (5) of the fan housing (1).

6. A high-efficiency air cooler according to claim 5, characterized in that, The hub (4) includes a main housing (16) and a secondary housing (17), which are connected by bolts (11). The blade (3) is detachably and fixedly connected to the main housing (16) and the secondary housing (17).

7. A high-efficiency air cooler according to claim 6, characterized in that, Two screws (18) are rotatably connected to the blade (3). The two screws (18) are located above the main housing (16) and the secondary housing (17), and the two screws (18) are threadedly connected to the main housing (16) and the secondary housing (17) respectively.

8. A high-efficiency air cooler according to claim 7, characterized in that, A sealing ring (19) is fixedly connected between the main housing (16) and the secondary housing (17).

9. A high-efficiency air cooler according to claim 1, characterized in that, A support base (20) is fixedly connected to the fan housing (1). The support base (20) is rotatably connected to the hub (4). A ball bearing (21) is rotatably connected to the hub (4). The ball bearing (21) is in contact with the support base (20).

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