Automobile air conditioner electromagnetic clutch pulley structure

Abstract

The utility model provides a kind of automobile air conditioner electromagnetic clutch pulley structure, including compressor, compressor pulley, electromagnetic clutch, transmission belt, pulley extension frame, pulley auxiliary wheel and pulley protection plate, wherein: compressor pulley is installed in one end of compressor, and electromagnetic clutch is installed in the inside of compressor pulley, and the transmission belt is wound in the outside of compressor pulley;The pulley extension frame is fixedly installed in the outside of compressor, and the pulley auxiliary wheel is fixedly installed in one end of pulley extension frame, and the pulley protection plate is fixedly installed in the surface of pulley auxiliary wheel;The utility model pulley auxiliary wheel and the setting of pulley protection plate, belt does not appear to shake when working, can effectively protect electromagnetic clutch.

Description

Technical Field

[0001] This utility model relates to the field of automotive air conditioning electromagnetic clutch technology, and in particular to an automotive air conditioning electromagnetic clutch pulley structure. Background Technology

[0002] The electromagnetic clutch pulley for automotive air conditioning is a core power interface component at the front end of the automotive air conditioning compressor. It consists of a compressor pulley that always idles with the engine speed and an internal electromagnetic clutch. Its working principle is as follows: when the air conditioning is on, the electromagnetic clutch is energized, generating magnetic force that attracts the compressor's drive shaft, thereby transmitting the idle power of the pulley to the compressor to enable cooling. When the air conditioning is off, the electromagnetic clutch is de-energized, disengaging and cutting off power transmission; the compressor stops working, while the pulley continues to idle, achieving on-demand connection and disconnection of engine power and the air conditioning compressor. However, the existing electromagnetic clutch pulley structure still suffers from the problem of belt slippage during operation, failing to effectively protect the electromagnetic clutch.

[0003] Therefore, it is essential to invent a pulley structure for an automotive air conditioning electromagnetic clutch. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an automotive air conditioning electromagnetic clutch pulley structure, solving the issue that existing electromagnetic clutch pulley structures still suffer from belt slippage during operation, failing to effectively protect the electromagnetic clutch. An automotive air conditioning electromagnetic clutch pulley structure includes a compressor, a compressor pulley, an electromagnetic clutch, a drive belt, a pulley extension bracket, an auxiliary pulley, and a pulley protective plate. The compressor pulley is mounted at one end of the compressor, and the electromagnetic clutch is installed inside the compressor pulley. The drive belt is wound around the outside of the compressor pulley. The pulley extension bracket is fixedly mounted on the outside of the compressor, and the auxiliary pulley is fixedly mounted at one end of the pulley extension bracket. The pulley protective plate is fixedly mounted on the surface of the auxiliary pulley.

[0005] The auxiliary pulley of the belt pulley includes a support base plate, an inner support wheel and an outer stabilizing wheel, and the support base plate is fixedly installed at one end of the belt pulley extension frame. The inner support wheel and the outer stabilizing wheel are two sets, which are rotatably installed at both ends of the surface of the support base plate.

[0006] The pulley guard plate includes a support frame, an extension plate, a guard plate, and a buffer plate. The support frame is fixedly installed on the surface of the auxiliary pulley of the pulley, and the extension plate is fixedly installed at one end of the support frame. The guard plate is fixedly installed at one end of the extension plate. The buffer plate is fixedly installed on the surface of the guard plate.

[0007] The internal support base plate of the auxiliary pulley is made of a set of arc-shaped stainless steel metal plates, and there are two sets of inner support wheels and outer stabilizing wheels, which clamp the transmission belt between them; the outer side of the inner support wheel is provided with a groove that is consistent with the compressor pulley, and the groove on the outer side of the inner support wheel matches the transmission belt; the outer side of the outer stabilizing wheel is provided with a rubber sleeve.

[0008] The inner protective plate of the pulley is made of a set of circular stainless steel metal plates, and the size of the protective plate is matched with that of the electromagnetic clutch. There is a gap between the protective plate and the electromagnetic clutch; the protective plate and the electromagnetic clutch do not contact each other.

[0009] Compared with the prior art, the present invention has the following beneficial effects: 1. The auxiliary pulley of this utility model prevents slippage by increasing the contact wrap angle between the transmission belt and the compressor pulley. The matching groove of the inner support wheel and the rubber sleeve of the outer stabilizing wheel clamp the transmission belt in the middle for bidirectional limiting, effectively preventing belt slippage, suppressing vibration and reducing wear, thereby improving the reliability, stability and durability of the entire transmission system.

[0010] 2. The pulley protection plate of this utility model achieves this function through the internal support frame, extension plate, protection plate and buffer plate. The key protection plate is installed on the outside of the electromagnetic clutch with specific size and gap, which can effectively block the impact or intrusion of external foreign objects. At the same time, because it does not contact the electromagnetic clutch, it completely avoids friction interference and affects heat dissipation, thereby ensuring the working safety and reliability of the electromagnetic clutch. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the structure of the auxiliary pulley of the present invention.

[0013] Figure 3 This is a structural schematic diagram of the pulley protection plate of this utility model.

[0014] In the picture: 1. Compressor pulley 2. Electromagnetic clutch 3. Drive belt 4. Pulley extension frame 5. Pulley auxiliary pulley 6. Support base plate 61. Inner support wheel 62. Outer stabilizing wheel 63. Pulley guard plate 7. Support frame 71. Extension plate 72. Guard plate 73. Buffer plate 74. Detailed Implementation

[0015] 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.

[0016] As attached Figure 1 To be continued Figure 3 As shown.

[0017] This utility model provides an automotive air conditioning electromagnetic clutch pulley structure, including a compressor 1, a compressor pulley 2, an electromagnetic clutch 3, a transmission belt 4, a pulley extension frame 5, a pulley auxiliary pulley 6, and a pulley protective plate 7. The compressor pulley 2 is installed at one end of the compressor 1, and the electromagnetic clutch 3 is installed inside the compressor pulley 2. The transmission belt 4 is wound around the outside of the compressor pulley 2. The pulley extension frame 5 is fixedly installed on the outside of the compressor 1, and the pulley auxiliary pulley 6 is fixedly installed at one end of the pulley extension frame 5. The pulley protective plate 7 is fixedly installed on the surface of the pulley auxiliary pulley 6.

[0018] The auxiliary pulley 6 includes a support base plate 61, an inner support wheel 62 and an outer stabilizing wheel 63. The support base plate 61 is fixedly installed at one end of the pulley extension frame 5. The inner support wheel 62 and the outer stabilizing wheel 63 are two sets, which are rotatably installed at both ends of the surface of the support base plate 61.

[0019] The pulley guard plate 7 includes a support frame 71, an extension plate 72, a guard plate 73, and a buffer plate 74. The support frame 71 is fixedly installed on the surface of the auxiliary pulley 6, and the extension plate 72 is fixedly installed on one end of the support frame 71. The guard plate 73 is fixedly installed on one end of the extension plate 72. The buffer plate 74 is fixedly installed on the surface of the guard plate 73.

[0020] The support base plate 61 inside the auxiliary pulley 6 is made of a set of arc-shaped stainless steel metal plates, and there are two sets of inner support wheels 62 and outer stabilizing wheels 63, which clamp the transmission belt 4 between them; the outer side of the inner support wheel 62 is provided with a groove that is consistent with the compressor pulley 2, and the groove on the outer side of the inner support wheel 62 matches the transmission belt 4; the outer side of the outer stabilizing wheel 63 is provided with a rubber sleeve.

[0021] The protective plate 73 inside the pulley protective plate 7 is made of a set of circular stainless steel metal plates, and the size of the protective plate 73 matches the electromagnetic clutch 3. There is a gap between the protective plate 73 and the electromagnetic clutch 3; the protective plate 73 does not contact the electromagnetic clutch 3.

[0022] The working principle of this automotive air conditioning electromagnetic clutch pulley structure is as follows: the engine drives the compressor pulley 2 to continuously idle via the transmission belt 4; when the air conditioning is started, the electromagnetic clutch 3 is energized and engaged, connecting the idling compressor pulley 2 to the compressor 1 shaft and transmitting power to make the compressor 1 work; when the air conditioning is turned off, the electromagnetic clutch 3 is de-energized and disengaged, cutting off the power, and the compressor 1 stops working. During this process, the auxiliary pulley 6 clamps and stabilizes the transmission belt 4 through its inner support pulley 62 and outer stabilizing pulley 63 to prevent slippage and fall off; at the same time, the pulley guard plate 7 is arranged with a gap between its guard plate 73 and the electromagnetic clutch 3, forming a non-contact protection, blocking the impact of foreign objects without affecting heat dissipation, and jointly ensuring the reliable operation of the system.

[0023] 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 pulley structure for an automotive air conditioning electromagnetic clutch, characterized in that: The device includes a compressor (1), a compressor pulley (2), an electromagnetic clutch (3), a transmission belt (4), a pulley extension frame (5), a pulley auxiliary wheel (6), and a pulley guard plate (7), wherein: the compressor pulley (2) is installed at one end of the compressor (1), and the electromagnetic clutch (3) is installed inside the compressor pulley (2), and the transmission belt (4) is wrapped around the outside of the compressor pulley (2); the pulley extension frame (5) is fixedly installed on the outside of the compressor (1), and the pulley auxiliary wheel (6) is fixedly installed at one end of the pulley extension frame (5), and the pulley guard plate (7) is fixedly installed on the surface of the pulley auxiliary wheel (6).

2. The automotive air conditioning electromagnetic clutch pulley structure as described in claim 1, characterized in that: The auxiliary pulley (6) includes a support base plate (61), an inner support wheel (62) and an outer stabilizing wheel (63). The support base plate (61) is fixedly installed at one end of the pulley extension frame (5). The inner support wheel (62) and the outer stabilizing wheel (63) are two sets, which are rotatably installed at both ends of the surface of the support base plate (61).

3. The automotive air conditioning electromagnetic clutch pulley structure as described in claim 1, characterized in that: The pulley guard plate (7) includes a support frame (71), an extension plate (72), a guard plate (73), and a buffer plate (74). The support frame (71) is fixedly installed on the surface of the auxiliary pulley (6), and the extension plate (72) is fixedly installed on one end of the support frame (71). The guard plate (73) is fixedly installed on one end of the extension plate (72). The buffer plate (74) is fixedly installed on the surface of the guard plate (73).

4. The automotive air conditioning electromagnetic clutch pulley structure as described in claim 2, characterized in that: The inner support base plate (61) of the auxiliary pulley (6) is made of a set of arc-shaped stainless steel metal plates, and there are two sets of inner support wheel (62) and outer stabilizing wheel (63). The inner support wheel (62) and the outer stabilizing wheel (63) sandwich the transmission belt (4) between them. The outer side of the inner support wheel (62) is provided with a groove that is consistent with the compressor pulley (2), and the groove on the outer side of the inner support wheel (62) matches the transmission belt (4). The outer side of the outer stabilizing wheel (63) is provided with a rubber sleeve.

5. The automotive air conditioning electromagnetic clutch pulley structure as described in claim 3, characterized in that: The protective plate (73) inside the pulley protective plate (7) is a set of circular stainless steel metal plates, and the size of the protective plate (73) matches the electromagnetic clutch (3). There is a gap between the protective plate (73) and the electromagnetic clutch (3); the protective plate (73) and the electromagnetic clutch (3) do not contact each other.

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