Novel electromagnetic clutch of automobile air conditioner

Abstract

The novel electromagnetic clutch of the automobile air conditioner comprises a belt pulley, the belt pulley comprises an outer wall, annular walls are arranged on the side edges of the outer wall, a plurality of arc-shaped holes are formed in the annular walls, triangular blocks are arranged between the annular walls, one ends of the triangular blocks are arranged in a rotating mode, poke rods are arranged in the arc-shaped holes, and the poke rods abut against the inner walls of the triangular blocks. And a fixing device is arranged on the poke rod. The utility model has the following advantages and effects: the belt is sleeved at the convex end of the triangular block on the belt pulley, and the convex height of the triangular block is adjusted by adjusting the position of the poke rod in the arc-shaped hole, so that the purpose of changing the transmission ratio is realized, and the device can adapt to different types of automobile air conditioners.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic clutches, in particular to an electromagnetic clutch of a novel automobile air conditioner. Background Art

[0002] The electromagnetic clutch is mainly composed of a pulley, a drive assembly, and a coil assembly. The air conditioner main shaft passes through the coil assembly and the pulley and is fixed on the drive assembly. When the coil assembly is energized, it attracts the drive assembly toward the pulley, and deceleration is achieved through the friction ring set on one side of the pulley.

[0003] In the electromagnetic clutch of the prior art, the belt is sleeved on the pulley, and a single type of pulley cannot change the transmission ratio and cannot adapt to various types of automobile air conditioners. Utility Model Content

[0004] The utility model aims to provide a novel electromagnetic clutch for automobile air conditioner which can change the transmission ratio.

[0005] The above technical purpose of the utility model is achieved through the following technical scheme: the electromagnetic clutch of the new automobile air conditioner includes a pulley, the pulley includes an outer wall, the side of the outer wall is provided with an annular wall, a plurality of arc holes are provided on the annular wall, triangular blocks are provided between the annular walls, one end of the triangular block is rotatably provided, a toggle rod is provided in the arc hole, the toggle rod is in contact with the inner wall of the triangular block, and a fixing device is provided on the toggle rod.

[0006] It is further configured that: a connecting ring is provided between adjacent toggle rods, and the connecting ring abuts against the outer surface of the annular wall.

[0007] It is further configured as follows: the fixing device includes a plurality of through holes arranged on the annular wall and a fixing hole arranged on the connecting ring, and screws penetrating into the through holes are arranged in the fixing holes.

[0008] It is further configured as follows: a limit block is provided on the inner side of the annular wall.

[0009] In summary, the utility model has the following beneficial effects: the belt sleeve is arranged on the protruding end of the triangular block on the pulley, and the height of the protrusion of the triangular block is adjusted by adjusting the position of the toggle rod in the arc hole, thereby achieving the purpose of changing the transmission ratio, and can adapt to different models of automobile air conditioners. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the three-dimensional structure of one side of the electromagnetic clutch;

[0011] Figure 2 It is a schematic diagram of the three-dimensional structure of the other side of the electromagnetic clutch.

[0012] In the figure: 1, pulley; 2, outer wall; 3, annular wall; 4, arc hole; 5, triangular block; 6, toggle rod; 7, connecting ring; 8, through hole; 9, fixing hole; 10, screw; 11, limit block. DETAILED DESCRIPTION

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0014] The electromagnetic clutch of a novel automobile air conditioner comprises a pulley 1, wherein the pulley 1 comprises a central body, a transverse outer wall 2 is arranged outside the central body, and an annular wall 3 is arranged on both sides of the outer wall 2.

[0015] A plurality of arc-shaped holes 4 are arranged on the annular wall 3 , and triangular blocks 5 are arranged between the annular walls 3 . One end of the triangular blocks 5 is rotatably arranged, and the other end is free to move.

[0016] A toggle rod 6 is arranged in the arc hole 4, the toggle rod 6 extends out of the arc hole 4, the toggle rod 6 abuts against the inner wall of the triangular block 5, and fixing devices are arranged on both ends of the toggle rod 6, and the toggle rod 6 can be fixed by the fixing devices. The belt is set on the protruding end of the triangular block 5, and the protruding height is adjusted by adjusting the position of the toggle rod 6 in the arc hole 4, so as to achieve the purpose of changing the transmission ratio, which can adapt to different models of automobile air conditioners.

[0017] The positions where the toggle rods 6 extend out of the arc-shaped holes 4 are all provided with connecting rings 7 connected to the adjacent toggle rods 6, and the connecting rings 7 are annular as a whole and abut against the outer surface of the annular wall 3. The connecting rings 7 are equivalent to linkage devices, which can facilitate the movement of the toggle rods 6.

[0018] The fixing device includes a plurality of through holes 8 arranged on the annular wall 3 and a fixing hole 9 arranged on the connecting ring 7. A screw 10 is arranged in the fixing hole 9 and penetrates into the through hole 8. After the adjustment is completed, the connecting ring 7 is fixed by the screw 10, thereby fixing the position of the toggle rod 6 and achieving the stability of the triangular block 5.

[0019] In one embodiment, a limit block 11 is provided inside the annular wall 3, and the maximum height of the triangular block 5 is limited by the limit block 11. In another embodiment, a spring may be provided between the triangular block 5 and the outer wall 2, so that the triangular block 5 is limited in a certain position.

[0020] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A new type of electromagnetic clutch for automobile air conditioner, including a pulley, characterized in that: The pulley includes an outer wall, and an annular wall is arranged on the side of the outer wall. A plurality of arc holes are arranged on the annular wall. A triangular block is arranged between the annular walls. One end of the triangular block is rotatably arranged. A toggle rod is arranged in the arc hole. The toggle rod abuts against the inner wall of the triangular block, and a fixing device is arranged on the toggle rod.

2. The electromagnetic clutch of the new automobile air conditioner according to claim 1 is characterized in that: A connecting ring is arranged between adjacent shifting rods, and the connecting ring abuts against the outer surface of the annular wall.

3. The electromagnetic clutch of the new automobile air conditioner according to claim 2 is characterized in that: The fixing device comprises a plurality of through holes arranged on the annular wall and a fixing hole arranged on the connecting ring, wherein screws penetrating into the through holes are arranged in the fixing holes.

4. The electromagnetic clutch of the new automobile air conditioner according to claim 1 is characterized in that: A limiting block is arranged on the inner side of the annular wall.

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