Energy-saving double-coil electromagnetic clutch

Abstract

The utility model discloses an energy-saving type double-coil electromagnetic clutch. The technical key points are that the driving disc assembly comprises a connecting disc, an inner sucker and an outer sucker, the coil assembly comprises a coil seat, an inner coil and an outer coil, the inner coil and the outer coil are fixedly connected to the coil seat, a gap is formed between the inner coil and the outer coil, and the inner sucker and the outer sucker are arranged in the gap. The side, facing the driving disc assembly, of the belt wheel is provided with a friction face, the other side of the belt wheel is provided with a containing groove, the containing groove is used for containing the coil assembly, the connecting disc comprises an inner disc and an outer disc which are rotatably connected, an inner reed is arranged on the inner suction cup and connected with the inner disc, and an outer reed is arranged on the outer suction cup and connected with the outer disc. When the compressor is started, the inner coil and the outer coil work at the same time, and slipping is avoided; when the compressor operates stably, only the inner coil works, energy consumption is reduced, heat is reduced, and the safety of a vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile air-conditioning electromagnetic clutch, and more specifically to an energy-saving double-coil electromagnetic clutch. Background Art

[0002] The existing electromagnetic clutch is composed of a driving disc, a pulley and a coil, wherein a suction cup is provided on the driving disc, and the suction cup is connected to the driving disc through a spring sheet, and whether the suction cup is coupled with the pulley is controlled by the coil.

[0003] In order to prevent the suction cup from slipping when it is combined with the pulley (large torque is required), the magnetic force generated by the coil is required to be high, much larger than the magnetic force required when the suction cup is combined with the pulley and running (small torque is required when running). However, the coil of the existing electromagnetic clutch can only be turned on or off, resulting in the coil wasting electricity and reducing endurance when the compressor is running. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an energy-saving double-coil electromagnetic clutch to solve the above technical problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an energy-saving double-coil electromagnetic clutch, comprising a driving disc assembly, a pulley and a coil assembly, the driving disc assembly comprising a connecting disc, an inner suction cup and an outer suction cup, the coil assembly comprising a coil seat, an inner coil and an outer coil, the inner coil and the outer coil are both fixedly connected to the coil seat, a gap is provided between the inner coil and the outer coil, a friction surface is provided on the side of the pulley facing the driving disc assembly, and a receiving groove is provided on the other side, the receiving groove is used to receive the coil assembly, the connecting disc comprises an inner disc and an outer disc that are rotatably connected, an inner spring sheet is provided on the inner suction cup, the inner spring sheet is connected to the inner disc, an outer spring sheet is provided on the outer suction cup, the outer spring sheet is connected to the outer disc, the outer suction cup is arranged parallel to the inner suction cup, the position of the inner suction cup corresponds to the position of the inner coil, and the position of the outer suction cup corresponds to the position of the outer coil.

[0006] As a further improvement of the utility model, the inner spring sheet is triangular in shape, an inner connecting hole is provided near the corner of the inner spring sheet, an inner fixing hole is provided between the connected inner connecting holes, the inner connecting hole is riveted to the inner suction cup, and the inner fixing hole is riveted to the inner disc.

[0007] As a further improvement of the utility model, the outer spring sheet is arranged in a ring shape, and a plurality of external connecting holes are provided on the outer spring sheet, the external connecting holes are distributed circumferentially, a connecting portion protruding outward is provided between adjacent external connecting holes, an external fixing hole is provided on the connecting portion, the external connecting hole is riveted to the external suction cup, and the external fixing hole is riveted to the outer disk.

[0008] As a further improvement of the utility model, a convex ring is provided in the accommodating groove, and the convex ring divides the accommodating groove into an inner groove and an outer groove. The inner coil is located in the inner groove, and the outer coil is located in the outer groove.

[0009] As a further improvement of the utility model, the pulley and the convex ring are integrally formed.

[0010] As a further improvement of the utility model, the pulley is provided with a plurality of circumferentially distributed through holes, the through holes are arranged at intervals from the inside to the outside, and there are a plurality of groups of through holes, and the through holes of two adjacent groups inside and outside are staggered.

[0011] The utility model has the beneficial effect that when the compressor is started, the inner coil and the outer coil work simultaneously to avoid slipping; when the compressor is running stably, only the inner coil works, which reduces energy consumption, reduces heat generation, and improves the safety of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the planar structure of the inner suction cup and the inner spring sheet;

[0014] Figure 3 It is a schematic diagram of the planar structure of the outer suction cup and the outer reed;

[0015] Figure 4 It is a schematic diagram of the planar structure of the pulley;

[0016] Figure 5 It is a schematic diagram of the planar structure of the coil assembly.

[0017] Marking instructions: 1. Drive disk assembly; 11. Connecting disk; 111. Inner disk; 112. Outer disk; 12. Inner suction cup; 121. Inner spring leaf; 122. Inner connecting hole; 123. Inner fixing hole; 13. Outer suction cup; 131. Outer spring leaf; 132. Outer connecting hole; 133. Connecting part; 1331. Outer fixing hole; 2. Pulley; 21. Accommodating groove; 22. Convex ring; 221. Inner groove; 222. Outer groove; 23. Through hole; 3. Coil assembly; 31. Coil seat; 32. Inner coil; 33. Outer coil; 34. Gap. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0019] Reference Figure 1 one Figure 5As shown, the energy-saving double-coil electromagnetic clutch of this embodiment includes a drive disc assembly 1, a pulley 2 and a coil assembly 3. The drive disc assembly 1 includes a connecting disc 11, an inner suction cup 12, and an outer suction cup 13. The coil assembly 3 includes a coil seat 31, an inner coil 32, and an outer coil 33. The inner coil 32 and the outer coil 33 are both fixedly connected to the coil seat 31. There is a gap 34 between the inner coil 32 and the outer coil 33. The pulley 2 is provided with a friction surface on one side facing the drive disc assembly 1, and a space accommodating the outer coil 33 on the other side. The groove 21 is used to accommodate the coil assembly 3. The connecting disk 11 includes an inner disk 111 and an outer disk 112 that are rotatably connected. The inner suction cup 12 is provided with an inner spring leaf 121, and the inner spring leaf 121 is connected to the inner disk 111. The outer suction cup 13 is provided with an outer spring leaf 131, and the outer spring leaf 131 is connected to the outer disk 112. The outer suction cup 13 is arranged parallel to the inner suction cup 12. The position of the inner suction cup 12 corresponds to the position of the inner coil 32, and the position of the outer suction cup 13 corresponds to the position of the outer coil 33.

[0020] Through the above technical solution, the center of the inner disk 111 on the connecting disk 11 is fixedly connected to the driving shaft of the compressor. When the compressor is started, the inner coil 32 and the outer coil 33 are started at the same time. At this time, the inner coil 32 attracts the inner suction cup 12 to move toward the pulley 2 and combine with the pulley 2. The outer coil 33 attracts the outer suction cup 13 to move toward the pulley 2 and combine with the pulley 2. The inner spring 121 and the outer spring 131 are deformed; at this time, the inner suction cup 12 and the outer suction cup 13 are combined with the pulley 2 to provide maximum torque and avoid slipping. After the compressor runs smoothly, the outer coil 33 is powered off. At this time, the outer spring 131 resets to drive the outer suction cup 13 to move, and the outer suction cup 13 is separated from the pulley 2. At this time, only the inner coil 32 is working, which reduces energy consumption, reduces heat, and improves the safety of the vehicle.

[0021] The friction surface has a large friction coefficient, which prevents slipping after being combined with the inner suction cup 12 and the outer suction cup 13.

[0022] The inner coil 32 and the outer coil 33 are fixed on the coil base 31, which has high stability and is easy to install.

[0023] There is a gap 34 between the inner coil 32 and the outer coil 33 to avoid the two magnetic fields from influencing each other and improve the stability during use.

[0024] The inner disk 111 and the outer disk 112 are rotatably connected. When the compressor is started, when the inner coil 32 and the outer coil 33 are energized at the same time, the inner disk 111 and the outer disk 112 rotate synchronously, and the rotation speed is the same as that of the pulley 2.

[0025] When the compressor is running smoothly, the pulley 2 drives the inner disk 111 to rotate through the inner suction cup 12 and the inner spring 121, thereby driving the rotating shaft of the compressor to rotate; the outer disk 112 remains stable and rotates relative to the inner disk 111.

[0026] As an improved specific implementation, the inner spring leaf 121 is triangular in shape, and an inner connecting hole 122 is provided near the corner of the inner spring leaf 121, and an inner fixing hole 123 is provided between the connected inner connecting holes 122. The inner connecting hole 122 is riveted to the inner suction cup 12, and the inner fixing hole 123 is riveted to the inner disk 111.

[0027] Through the above technical solution, the inner fixing hole 123 and the inner connecting hole 122 are staggered, so that the deformation and reset of each position of the inner spring leaf 121 are stable. The riveting fixed connection strength is high. The inner spring leaf 121 is arranged as a whole and has high stability.

[0028] As an improved specific implementation, the outer spring leaf 131 is arranged in a ring shape, and a plurality of external connecting holes 132 are provided on the outer spring leaf 131. The external connecting holes 132 are distributed circumferentially, and a connecting portion 133 protruding outward is provided between adjacent external connecting holes 132. The connecting portion 133 is provided with an external fixing hole 1331. The external connecting hole 132 is riveted to the external suction cup 13, and the external fixing hole 1331 is riveted to the outer disk 112.

[0029] Through the above technical solution, the outer fixing hole 1331 and the outer connecting hole 132 are staggered, so that the deformation and reset of each position of the outer spring 131 are stable, and the outer spring 131 is connected to the outer disk 112 through the outwardly protruding connecting portion 133, so that the deformation distance of the outer spring 131 is long, the elastic force is well exerted, and the service life is extended. The outer spring 131 is set as a whole, with high stability. The riveted fixing structure has high strength.

[0030] As an improved specific implementation, a convex ring 22 is provided in the receiving groove 21 , and the convex ring 22 divides the receiving groove 21 into an inner groove 221 and an outer groove 222 . The inner coil 32 is located in the inner groove 221 , and the outer coil 33 is located in the outer groove 222 .

[0031] Through the above technical solution, the convex ring 22 separates the inner coil 32 from the outer coil 33, preventing the magnetic field of the inner coil 32 from affecting the outer suction cup 13, and preventing the magnetic field of the outer coil 33 from affecting the inner suction cup 12 (the affected inner suction cup 12 and outer suction cup 13 may rub against the pulley 2), avoiding magnetic field interference that causes excessive wear of the inner suction cup 12 and outer suction cup 13, and extending the service life of the electromagnetic clutch.

[0032] Specifically, the convex ring 22 isolates the inner coil 32 from the outer coil 33, further improving safety.

[0033] As an improved specific implementation, the pulley 2 and the convex ring 22 are integrally formed.

[0034] Through the above technical solution, the pulley 2 and the convex ring 22 are integrally formed, with high structural strength and long service life.

[0035] As an improved specific implementation, the pulley 2 is provided with a plurality of circumferentially distributed through holes 23, the through holes 23 are arranged at intervals from the inside to the outside, and there are a plurality of groups of through holes 23, and the through holes 23 of two adjacent groups inside and outside are staggered.

[0036] Through the above technical solution, multiple groups of circumferentially arranged through holes 23 reduce the mass of the pulley 2, thereby reducing the weight of the entire vehicle and reducing energy consumption. The staggered arrangement of the through holes 23 of the two adjacent groups inside and outside can ensure the structural strength of the pulley 2.

[0037] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An energy-saving double-coil electromagnetic clutch, comprising a drive disc assembly (1), a pulley (2) and a coil assembly (3), characterized in that: The drive disk assembly (1) comprises a connecting disk (11), an inner suction cup (12), and an outer suction cup (13); the coil assembly (3) comprises a coil seat (31), an inner coil (32), and an outer coil (33); the inner coil (32) and the outer coil (33) are both fixedly connected to the coil seat (31); a gap (34) is provided between the inner coil (32) and the outer coil (33); a friction surface is provided on one side of the pulley (2) facing the drive disk assembly (1), and a receiving groove (21) is provided on the other side; the receiving groove (21) is used to receive the coil assembly (3 ), the connecting disk (11) comprises an inner disk (111) and an outer disk (112) which are rotatably connected, the inner suction cup (12) is provided with an inner spring leaf (121), the inner spring leaf (121) is connected to the inner disk (111), the outer suction cup (13) is provided with an outer spring leaf (131), the outer spring leaf (131) is connected to the outer disk (112), the outer suction cup (13) is arranged in parallel with the inner suction cup (12), the position of the inner suction cup (12) corresponds to the position of the inner coil (32), and the position of the outer suction cup (13) corresponds to the position of the outer coil (33).

2. The energy-saving double-coil electromagnetic clutch according to claim 1 is characterized in that: The inner spring sheet (121) is quasi-triangular in shape, an inner connection hole (122) is provided near a corner of the inner spring sheet (121), an inner fixing hole (123) is provided between connected inner connection holes (122), the inner connection hole (122) is riveted to the inner suction cup (12), and the inner fixing hole (123) is riveted to the inner cup (111).

3. The energy-saving double-coil electromagnetic clutch according to claim 1 is characterized in that: The outer spring sheet (131) is arranged in an annular shape, and a plurality of outer connection holes (132) are provided on the outer spring sheet (131). The outer connection holes (132) are distributed circumferentially, and an outwardly protruding connection portion (133) is provided between adjacent outer connection holes (132). An outer fixing hole (1331) is provided on the connection portion (133). The outer connection hole (132) is riveted to the outer suction cup (13), and the outer fixing hole (1331) is riveted to the outer disc (112).

4. The energy-saving double-coil electromagnetic clutch according to claim 1 is characterized in that: A convex ring (22) is provided in the receiving groove (21), and the convex ring (22) divides the receiving groove (21) into an inner groove (221) and an outer groove (222); the inner coil (32) is located in the inner groove (221), and the outer coil (33) is located in the outer groove (222).

5. The energy-saving double-coil electromagnetic clutch according to claim 4 is characterized in that: The belt pulley (2) and the convex ring (22) are integrally formed.

6. The energy-saving double-coil electromagnetic clutch according to claim 1 is characterized in that: The pulley (2) is provided with a plurality of circumferentially distributed through holes (23), the through holes (23) being arranged at intervals from the inside to the outside, and having a plurality of groups, wherein the through holes (23) of two adjacent groups inside and outside are staggered.

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