High-heat-dissipation belt pulley for automobile air conditioner clutch

Abstract

The high-heat-dissipation belt pulley for the automobile air conditioner clutch comprises an air cooling belt pulley, and the two ends of a belt pulley body of the air cooling belt pulley are rotationally or fixedly connected with heat dissipation outer discs at the two different positions of a heat dissipation belt pressing piece respectively. An electromagnetic clutch is arranged on the outer side of the heat dissipation outer disc fixedly installed with the belt pulley body. A plurality of heat dissipation openings are formed in the middle of each heat dissipation outer disc in a penetrating mode. Through the arrangement of the heat dissipation belt pressing piece and the heat dissipation opening, the heat dissipation area is increased, and the heat dissipation efficiency is improved. The air cooling belt pulley utilizes the combination of the belt gully grooves and the heat dissipation holes, so that the heat dissipation effect is enhanced. Due to the inclined design of the heat dissipation cavity channels, heat is discharged smoothly, heat dissipation is accelerated through centrifugal force, and the performance is further improved. Meanwhile, the electromagnetic clutch and the input end of the compressor are fixedly installed, and the positioning pressing plate and the belt pressing wheel are innovatively designed, so that tight attachment and stable transmission of the belt and the belt wheel are ensured, and the belt is effectively prevented from falling off.

Description

Technical Field

[0001] This utility model belongs to the field of belt pulley technology, and in particular relates to a high-heat-dissipation automotive air conditioning clutch belt pulley. Background Technology

[0002] In automotive air conditioning systems, pulleys are key components for power transmission, and their performance and reliability directly affect the operating efficiency and lifespan of the entire system. Traditional automotive air conditioning clutch pulleys often neglect two crucial issues in their design: heat dissipation and belt slippage, leading to various shortcomings in practical applications.

[0003] First, heat dissipation has always been a challenge in the design of automotive air conditioning pulleys. Because pulleys generate a significant amount of heat during high-speed operation, poor heat dissipation not only leads to increased pulley temperature and affects the mechanical properties of the materials, but can also cause problems such as belt slippage and accelerated wear. This issue is particularly prominent during hot summers or long periods of continuous operation.

[0004] Secondly, belt slippage is a common defect in traditional pulley designs. When the friction between the pulley and the belt is insufficient or the pulley is subjected to external impact, the belt can easily slip off the pulley, causing the air conditioning system to malfunction. This not only affects the driver's comfort but may also pose a threat to vehicle safety.

[0005] Therefore, it is essential to invent a high-heat-dissipation automotive air conditioning clutch pulley. Summary of the Invention

[0006] To solve the above-mentioned technical problems, this utility model provides a pulley for a high-heat-dissipation automotive air conditioning clutch, including an air-cooled pulley, a heat-dissipating pressure belt component, and an electromagnetic clutch. The two ends of the pulley body of the air-cooled pulley are rotatably or fixedly connected to two heat-dissipating outer discs at two different positions of the heat-dissipating pressure belt component. An electromagnetic clutch is provided on the outer side of the heat-dissipating outer discs that are fixedly installed together with the pulley body. Several heat dissipation holes are opened through the middle of each heat-dissipating outer disc.

[0007] Preferably, the electromagnetic clutch is fixed to one end of the compressor input terminal, and the compressor end cover is rotatably mounted together with the compressor input terminal, wherein a heat dissipation outer plate and an electromagnetic coil are fixedly mounted externally.

[0008] Preferably, the heat dissipation outer plate near the electromagnetic coil is rotatably connected to the pulley body, and the heat dissipation outer plate is fixed to at least one of the positioning pressure plates by hidden bolts, the positioning pressure plates being located on the outside of the pulley body.

[0009] Preferably, the positioning plate has several slots, and each slot of the positioning plate has a pressure roller that is rotatably installed therein, wherein each pressure roller is in rolling contact with a belt.

[0010] Preferably, the air-cooled pulley includes belt grooves and groove heat dissipation holes. A plurality of belt grooves are distributed laterally on the outer surface of the pulley body, and a plurality of groove heat dissipation holes are provided at the bottom of each belt groove.

[0011] Preferably, the grooved heat dissipation holes are connected to a plurality of heat dissipation cavities that are opened through the pulley body, and the plurality of heat dissipation cavities are distributed in a circular array on the pulley body.

[0012] Preferably, the heat dissipation cavity is opened at an angle, and the two ends of the heat dissipation cavity are not on the same straight line.

[0013] Preferably, the openings at both ends of each heat dissipation cavity are connected to the semi-enclosed heat dissipation area formed by the end face of the pulley body and the inner diameter of the heat dissipation outer disk.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention achieves a dual improvement in both heat dissipation and belt-driven stable transmission. Specifically, by setting heat-dissipating pressure components at both ends of the pulley body and opening several heat dissipation vents, the heat dissipation area of ​​the pulley is effectively increased, significantly improving heat dissipation efficiency. Simultaneously, the air-cooled pulley design cleverly utilizes the combination of belt grooves and groove heat dissipation holes, further enhancing the overall heat dissipation effect. Furthermore, the inclined, through-type heat dissipation channels not only allow heat to dissipate more smoothly, preventing heat accumulation inside the pulley, but also generate centrifugal force when the pulley rotates, prompting heat to dissipate more quickly through the heat dissipation channels, further improving heat dissipation performance.

[0016] To prevent belt slippage, the pulley is securely mounted to the compressor input via an electromagnetic clutch, and the innovative design of the positioning plate and pressure pulley ensures a tight fit and stable transmission between the belt and pulley. The grooves on the positioning plate and the pressure pulley not only increase the contact area between the belt and pulley, improving belt stability, but also effectively prevent belt slippage during operation, thus ensuring the continuous and efficient operation of the air conditioning system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2This is a structural schematic diagram of the air-cooled pulley and heat dissipation pressure belt component of this utility model.

[0019] Figure 3 This is a partial cross-sectional structural diagram of the air-cooled pulley of this utility model.

[0020] Figure 4 This is a structural schematic diagram of the heat dissipation pressure band component of this utility model.

[0021] In the picture:

[0022] 1. Air-cooled pulley, 11. Pulley body, 12. Belt groove, 13. Groove heat dissipation hole, 14. Heat dissipation cavity, 2. Heat dissipation pressure belt, 21. Heat dissipation outer plate, 22. Heat dissipation port, 23. Hidden bolt, 24. Positioning pressure plate, 3. Electromagnetic clutch, 4. Compressor input end. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0024] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0025] As attached Figure 1 To be continued Figure 4 As shown:

[0026] The high heat dissipation automotive air conditioning clutch pulley provided by this utility model includes an air-cooled pulley 1, a heat dissipation pressure belt component 2, and an electromagnetic clutch 3. The two ends of the pulley body 11 of the air-cooled pulley 1 are rotatably or fixedly connected to two heat dissipation outer discs 21 at two different positions of the heat dissipation pressure belt component 2. The electromagnetic clutch 3 is provided on the outer side of the heat dissipation outer disc 21 which is fixedly installed together with the pulley body 11. Several heat dissipation holes 22 are opened through the middle of each heat dissipation outer disc 21.

[0027] Furthermore, the electromagnetic clutch 3 is fixed to one end of the compressor input end 4, ensuring the stability and reliability of power transmission. Simultaneously, the compressor end cover is rotatably mounted to the compressor input end 4, providing necessary support for the rotation of the pulley. In this structure, a heat dissipation outer plate 21 and an electromagnetic coil are also fixedly mounted externally, together forming part of the pulley. This achieves both a certain heat dissipation function and ensures the normal operation of the electromagnetic clutch 3, with the electromagnetic coil being an integral part of the electromagnetic clutch 3.

[0028] Furthermore, the heat dissipation outer plate 21 near the electromagnetic coil is rotatably connected to the pulley body 11, but always maintains a certain magnetic force. This magnetic force acts on the nearby heat dissipation outer plate 21 to maintain its stability and prevent unnecessary movement of the heat dissipation outer plate 21 caused by the rotation of the pulley body 11, but the magnetic force does not cause the pressure plate of the electromagnetic clutch 3 to contact the pulley body 11. This design ensures the stability of the heat dissipation outer plate 21, while ensuring that the stability of the positioning pressure plate 24 is not affected. The heat dissipation outer plate 21 near the electromagnetic coil is fixed to at least one positioning pressure plate 24 by hidden bolts 23. The positioning pressure plate 24 is located on the outside of the pulley body 11, providing stable support for the belt.

[0029] Furthermore, the positioning plate 24 has several slots, each containing a individually rotatable pressure roller 25. This design ensures that each pressure roller 25 makes rolling contact with each belt mounted on the pulley body 11, thereby achieving a tight fit and stable transmission between the belt and the pulley body 11. The pressure rollers 25 not only increase the contact area between the belt and the pulley but also improve the stability of the belt on the pulley, effectively preventing belt slippage.

[0030] Furthermore, the air-cooled pulley 1 includes belt grooves 12 and groove heat dissipation holes 13. Several belt grooves 12 are laterally distributed on the outer surface of the pulley body 11. The design of these grooves helps to increase the contact area and stability of the belt. Simultaneously, several groove heat dissipation holes 13 are formed at the bottom of each belt groove 12, and these heat dissipation holes 13 are connected to several heat dissipation channels 14 that penetrate the pulley body 11. This design allows heat to be more effectively dissipated from the interior of the pulley body 11, improving heat dissipation efficiency.

[0031] Furthermore, the heat dissipation cavities 14 are arranged in a circular array on the pulley body 11 and are inclined through it. This inclined design not only helps the heat to dissipate smoothly, but also generates a certain centrifugal force when the pulley body 11 rotates, further promoting heat dissipation. The two ends of the heat dissipation cavities 14 are not on the same straight line, and each opening is connected to the semi-enclosed heat dissipation area formed by the end face of the pulley body 11 and the inner diameter of the heat dissipation outer disk 21. This interconnected design ensures that heat can be more effectively transferred from the semi-enclosed heat dissipation area of ​​the pulley body 11 to the external environment through the heat dissipation vents 22 provided on the heat dissipation outer disk 21, thereby achieving a highly efficient heat dissipation effect.

[0032] The working principle is as follows: First, when the compressor of the car's air conditioning system needs to be started, the electromagnetic coil installed on the compressor end cover generates a stronger magnetic force. The magnetic force attracts the pressure plate of the electromagnetic clutch 3 to approach one of the heat dissipation outer plates 21 of the fixed heat dissipation pressure belt component 2 on the air-cooled pulley 1, and tightly engages with the fixed heat dissipation outer plate 21. At this time, the idle air-cooled pulley 1 achieves power transmission through the engagement of the electromagnetic clutch 3 and the heat dissipation pressure belt component 2 (one of the heat dissipation outer plates 21 engages with the pressure plate), causing the pulley body 11 of the air-cooled pulley 1 to drive the compressor input end 4 of the compressor to rotate.

[0033] Next, the heat dissipation outer plate 21 near the electromagnetic coil (another heat dissipation outer plate 21, which is rotatably connected to the air-cooled pulley 1) maintains relative stability with the pulley body 11 due to the magnetic force, preventing unnecessary movement caused by rotation. This stability ensures that the positioning pressure plate 24 and the pressure pulley 25 on it can work normally. It should be noted that the electromagnetic coil always generates magnetic force. Relatively speaking, the weak magnet generated is used to stabilize the positioning pressure plate 24 during the idling of the air-cooled pulley 1, while the strong magnet generated is used to enable the air-cooled pulley 1 to transmit force to the compressor input end 4.

[0034] The pressure pulleys 25 on the positioning plate 24 (which is fixed only to another heat dissipation outer plate 21) rotate with the belt movement of the pulley body 11, and each pressure pulley 25 makes rolling contact with the belt mounted on the pulley body 11. This rolling contact not only increases the contact area between the belt and the pulley and improves the stability of the transmission, but also effectively prevents the belt from falling off during operation.

[0035] Meanwhile, the pulley body 11 generates heat during rotation. To effectively dissipate heat, several belt grooves 12 designed on the outer surface of the pulley body 11 have several grooved heat dissipation holes 13 at their bottom. These heat dissipation holes 13 are connected to the heat dissipation cavity 14 that runs through the pulley body 11, forming a highly efficient heat dissipation channel.

[0036] The heat dissipation cavities 14 are arranged in a circular array and are obliquely penetrated through the pulley body 11. This oblique design not only facilitates the smooth dissipation of heat but also generates a certain centrifugal force when the pulley body 11 rotates, further promoting heat dissipation. Although the openings at both ends of the heat dissipation cavities 14 are not on the same straight line, each opening is connected to the semi-enclosed heat dissipation area formed by the end face of the pulley body 11 and the inner diameter of the heat dissipation outer plate 21. This interconnected design ensures that heat can be effectively transferred from the semi-enclosed heat dissipation area of ​​the pulley body 11 to the heat dissipation outer plate 21.

[0037] Finally, several heat dissipation vents 22 on the heat dissipation outer plate 21 transfer heat from the inside of the pulley to the external environment. Since the heat dissipation outer plate 21 is connected or fixed to the pulley body 11, and the heat dissipation vents 22 on it are reasonably designed, heat can be dissipated efficiently, ensuring the normal operation of the pulley in high-temperature environments.

[0038] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A high-heat-dissipation automotive air conditioning clutch pulley, characterized in that, It includes an air-cooled pulley (1), a heat dissipation pressure belt (2) and an electromagnetic clutch (3). The two ends of the pulley body (11) of the air-cooled pulley (1) are rotatably or fixedly connected to the heat dissipation outer disk (21) at two different positions of the heat dissipation pressure belt (2). An electromagnetic clutch (3) is provided on the outer side of the heat dissipation outer disk (21) which is fixedly installed with the pulley body (11). Several heat dissipation holes (22) are opened through the middle of each heat dissipation outer disk (21).

2. The high-heat-dissipation automotive air conditioning clutch pulley as described in claim 1, characterized in that: The electromagnetic clutch (3) is fixed to one end of the compressor input end (4), and the compressor end cover is rotatably mounted together with the compressor input end (4). A heat dissipation outer plate (21) and an electromagnetic coil are fixedly mounted externally.

3. The high-heat-dissipation automotive air conditioning clutch pulley as described in claim 2, characterized in that: The heat dissipation outer plate (21) near the electromagnetic coil is rotatably connected to the pulley body (11). The heat dissipation outer plate (21) is fixed to at least one positioning plate (24) by a hidden bolt (23). The positioning plate (24) is located on the outside of the pulley body (11).

4. The high-heat-dissipation automotive air conditioning clutch pulley as described in claim 3, characterized in that: The positioning plate (24) has several slots, and each slot of the positioning plate (24) has a pressure roller (25) that is rotatably installed. Each pressure roller (25) is in rolling contact with a belt.

5. The high-heat-dissipation automotive air conditioning clutch pulley as described in claim 1, characterized in that: The air-cooled pulley (1) includes belt grooves (12) and groove heat dissipation holes (13). Several belt grooves (12) are distributed laterally on the outer surface of the pulley body (11). Several groove heat dissipation holes (13) are opened at the bottom of each belt groove (12).

6. The high-heat-dissipation automotive air conditioning clutch pulley as described in claim 5, characterized in that: The groove heat dissipation holes (13) are connected to a plurality of heat dissipation cavities (14) that are opened through the pulley body (11), and the plurality of heat dissipation cavities (14) are arranged in a circular array on the pulley body (11).

7. The high-heat-dissipation automotive air conditioning clutch pulley as described in claim 6, characterized in that: The heat dissipation cavity (14) is opened at an angle, and the two ends of the heat dissipation cavity (14) are not on the same straight line.

8. The high-heat-dissipation automotive air conditioning clutch pulley as described in claim 7, characterized in that: The openings at both ends of each heat dissipation cavity (14) are connected to the semi-enclosed heat dissipation area formed by the end face of the pulley body (11) and the inner diameter of the heat dissipation outer disk (21).

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