Air conditioner clutch pulley
By installing a filter unit and a limiting unit at the heat dissipation hole of the air conditioning clutch pulley, the problem of coil adhesion caused by impurities is solved, achieving effective impurity filtration and heat dissipation, and extending the service life of the coil.
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG QIBO MACHINERY CO LTD
- Filing Date
- 2025-10-28
- Publication Date
- 2026-07-21
AI Technical Summary
Impurities can easily enter the heat dissipation holes of the existing air conditioning clutch pulley, causing the coil to stick, affecting the performance and potentially causing damage.
An air conditioning clutch pulley with a filter unit and a limiting unit was designed. By setting a filter cartridge and a matching assembly at the heat dissipation hole, impurities are filtered out, and the position of the filter cartridge is fixed by a limiting rod and a spring to prevent it from falling off.
It effectively filters impurities to prevent them from entering the coil, maintains heat dissipation, extends the coil's lifespan, and avoids damage.
Smart Images
Figure CN224533399U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of transmission technology and relates to an air conditioning clutch pulley. Background Technology
[0002] The automotive air conditioning clutch is an electromagnetic clutch. Its static torque is generated by the magnetic field produced by the coil in the pulley coil groove after being energized, which brings the suction cup into contact with the pulley engagement surface. The higher the friction generated, the better the effect. Since the coil generates heat during operation, heat dissipation holes need to be opened on the clutch for heat dissipation. Although the clutch is an internal part, in actual use, with the air flow, some impurities will also enter the heat dissipation holes of the clutch with the airflow, thus adhering to the internal coil. If the adhering impurities are not cleaned for a long time, they will affect the normal use of the coil and even cause damage to the coil, thus failing to meet the usage requirements. Summary of the Invention
[0003] The purpose of this invention is to address the aforementioned problems in the prior art by providing an air conditioning clutch pulley with heat dissipation effect.
[0004] The objective of this utility model can be achieved through the following technical solution: an air conditioning clutch pulley, comprising a clutch body with a spoke portion, wherein an axially inwardly recessed mounting groove for mounting a coil is provided on one end face of the clutch body located on the spoke portion, and a plurality of heat dissipation holes spaced apart along its circumference and used for heat dissipation are provided on the end face of the clutch body located on the mounting groove, characterized in that a filter unit connected to and used for filtering impurities is provided at the heat dissipation holes of the clutch body, the filter unit comprising an assembly assembly with an assembly cavity and a filter cylinder, the heat dissipation holes being arranged in a two-stage stepped structure, the assembly assembly being disposed within and connected to the heat dissipation holes of the clutch body, the filter cylinder being disposed within and connected to the assembly assembly, and a limiting unit connected to and used for limiting the position of the filter cylinder being disposed within the assembly assembly.
[0005] In the aforementioned air conditioning clutch pulley, the assembly has a radially outward protruding contact ring on its inner peripheral wall located at the inner end, which abuts against the filter cartridge.
[0006] In the aforementioned air conditioning clutch pulley, the assembly has a radially outwardly protruding ring portion on the outer peripheral wall of its outer end, which abuts against the stepped surface of the heat dissipation hole.
[0007] In the aforementioned air conditioning clutch pulley, the filter cylinder is arranged in a U-shape, and a drying ring connected to it is provided inside the filter cylinder. A limiting ring that protrudes radially outward and is used to limit the position of the drying ring is provided on the inner peripheral wall of the filter cylinder at the opening.
[0008] In the aforementioned air conditioning clutch pulley, the limiting unit is a limiting rod. The filter cylinder has two symmetrically arranged mounting holes on its inner circumferential wall at the convex ring portion, into which the two ends of the limiting rod are respectively inserted. The filter cylinder is provided with springs at both ends that abut against the bottom surface of the mounting hole groove and the corresponding ends of the limiting rod, respectively, within the mounting holes.
[0009] Compared with existing technologies, the air conditioning clutch pulley filters the heat dissipation holes by setting up a filter unit and a limit unit, while preventing it from disengaging from the filter unit during operation. Attached Figure Description
[0010] Figure 1 This is a cross-sectional structural diagram of the clutch pulley in this air conditioner.
[0011] Figure 2 It is the clutch pulley of this air conditioner Figure 1 A magnified view of the circle.
[0012] In the diagram, 1. Clutch body; 2. Assembly kit; 3. Filter cartridge; 4. Contact ring; 5. Convex ring; 6. Drying ring; 7. Limiting ring; 8. Limiting rod; 9. Spring. Detailed Implementation
[0013] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0014] like Figure 1 , Figure 2As shown, this air conditioning clutch pulley includes a clutch body 1 with a spoke portion. One end face of the clutch body 1, located on the spoke portion, has an axially inwardly recessed mounting groove for installing a coil. The end face of the clutch body 1, located on the mounting groove, has several heat dissipation holes spaced circumferentially for heat dissipation. A filter unit, connected to the heat dissipation holes and used for filtering impurities, is located on the clutch body 1. The filter unit includes an assembly 2 with an assembly cavity and a filter cylinder 3. The heat dissipation holes are arranged in a two-stage stepped structure, with the inner diameter of the holes decreasing progressively from the outside to the inside. The assembly 2 is located within and connected to the heat dissipation holes in the clutch body 1. The filter cylinder 3 is located within and connected to the assembly 2. A limiting unit, connected to the assembly 2, is located within the assembly 2 and used to limit the position of the filter cylinder 3. An abutment ring 4, radially protruding outward and abutting against the filter cylinder 3, is located on the inner circumferential wall of the assembly 2 at its inner end. The outer peripheral wall of the assembly 2 has a radially outward protruding ring 5 that abuts against the stepped surface of the heat dissipation hole. The filter cylinder 3 is U-shaped and has a drying ring 6 connected to it inside. The inner peripheral wall of the filter cylinder 3 at the opening has a radially outward protruding limiting ring 7 that restricts the position of the drying ring 6. The limiting unit is a limiting rod 8. The inner peripheral wall of the filter cylinder 3 at the protruding ring 5 has two symmetrically arranged mounting holes for the two ends of the limiting rod 8 to be inserted into. The filter cylinder 3 has a spring 9 in the mounting hole, with its two ends abutting against the bottom surface of the mounting hole groove and the corresponding end of the limiting rod 8, respectively. The spring 9 limits the position of the limiting rod 8 and makes the limiting rod 8 abut against the filter cylinder 3 after assembly, thus restricting the position of the filter cylinder 3. When disassembling, pressure is applied to compress one end of the spring 9, thereby disengaging the other end of the limiting rod 8 from the mounting hole for removal.
[0015] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0016] Although this document uses terms such as "etc." extensively, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.
Claims
1. An air conditioning clutch pulley, comprising a clutch body (1) with a spoke portion, wherein the clutch body (1) has an axially inwardly recessed mounting groove for mounting a coil on one end face of the spoke portion, and the clutch body (1) has a plurality of heat dissipation holes spaced circumferentially for heat dissipation on the end face of the mounting groove, characterized in that, The clutch body (1) is provided with a filter unit connected to the heat dissipation hole and used to filter impurities. The filter unit includes an assembly (2) with an assembly cavity and a filter cylinder (3). The heat dissipation hole is arranged in a two-stage stepped structure. The assembly (2) is located in the heat dissipation hole of the clutch body (1) and connected to it. The filter cylinder (3) is located in the assembly (2) and connected to it. The assembly (2) is provided with a limiting unit connected to it and used to limit the position of the filter cylinder (3).
2. The air conditioning clutch pulley according to claim 1, characterized in that, The assembly (2) has an abutment ring (4) that protrudes radially outward and abuts against the filter cylinder (3) on its inner peripheral wall at the inner end.
3. The air conditioning clutch pulley according to claim 1, characterized in that, The assembly (2) has a convex ring (5) that protrudes radially outward and abuts against the stepped surface of the heat dissipation hole on the outer peripheral wall at the outer end.
4. The air conditioning clutch pulley according to claim 1, characterized in that, The filter cylinder (3) is arranged in a U-shape. A drying ring (6) is provided inside the filter cylinder (3) and connected thereto. A limiting ring (7) is provided on the inner peripheral wall of the filter cylinder (3) at the opening, which protrudes radially outward and is used to limit the position of the drying ring (6).
5. An air conditioning clutch pulley according to claim 3, characterized in that, The limiting unit is a limiting rod (8). The filter cylinder (3) has two symmetrically arranged mounting holes on the inner peripheral wall of the convex ring (5) for the two ends of the limiting rod (8) to be inserted and installed. The filter cylinder (3) is provided with springs (9) in the mounting holes, with the two ends of which respectively abut against the bottom surface of the mounting hole groove and the corresponding end of the limiting rod (8).