CN204828362U - Novel lightweight electromagnetic clutch - Google Patents

Abstract

The utility model relates to a novel lightweight electromagnetic clutch, comprising a drive plate (1), the drive plate (1) is connected to a spring piece (2), the spring piece (2) is connected to a transmission plate (3), the transmission plate (3) and a sucker (6) Connection, the compressor shell is connected with the pulley (7), the clutch gap is formed between the end surface of the pulley (7) and the surface of the suction cup (6), and the iron core groove (7a) is set on the pulley (7). It is: the mouth of the iron core slot (7a) is provided with a limit slot (7b); the iron core slot (7a) is sleeved with the iron core shell (9), and the iron core shell (9) is provided with a cylinder (9b), and the cylinder ( 9b) One end is provided with a fixed plate (9a), the fixed plate (9a) is matched with the bottom of the limit groove (7b), the cylinder body (9b) is sealed and connected to the coil (8), and the fixed plate (9a) is connected to the iron core end cover ( 10), the iron core end cover (10) is connected to the compressor shell. After adopting the above technology, it not only realizes the weight reduction of the clutch, but also helps to reduce the cost and improve its torque performance.

Description

A New Lightweight Electromagnetic Clutch

technical field

The utility model relates to an electromagnetic clutch, which belongs to the technical field of electromechanical integration and is mainly suitable for automobile air-conditioning systems.

Background technique

The energy crisis and environmental pollution have affected the global concept of energy consumption. Some major industrialized countries have formulated strict automobile fuel economy regulations, and reducing the weight of the automobile body can reduce fuel consumption, assemble more equipment, and improve the performance of the automobile. Therefore, in order to reduce fuel consumption, automobile manufacturers are trying to improve Fuel economy, while improving the aerodynamics of cars, focus on the research of vehicle lightweight.

As an effective means of energy saving, automobile lightweight technology has become one of the important research topics in the development of the automobile industry. Automobile lightweight is an urgent need of the national energy-saving and emission-reduction strategy, and it has become a realistic demand for car companies and the entire industry to improve their core capabilities. The weight reduction of various parts of the car is an inevitable requirement for the weight reduction of the car, including the weight reduction of the electromagnetic clutch.

The lightweight of the electromagnetic clutch is mainly to reduce the weight of the electromagnetic clutch by using a new design or new material. Aluminum alloy, plastic (resin-based composite material), and magnesium alloy are three types of materials that are considered ideal at present. For an electromagnetic clutch, the material firstly has magnetic permeability, and also needs to have properties such as wear resistance, rigidity, strength, hardness, and high and low temperature resistance. It is difficult to replace steel with new materials to achieve a lightweight solution. Changing the new design will Become the research direction of electromagnetic clutch lightweight.

Utility model content

The purpose of the utility model is to provide an electromagnetic clutch with light weight, low cost and good performance.

A new type of lightweight electromagnetic clutch, including a drive plate connected to the shaft of the compressor, the drive plate is connected to a spring plate, the spring plate is connected to a set of transmission plates, and each transmission plate is connected to the suction cup through a rivet sleeved with an elastic rubber column pad. The compressor housing is movably connected to the pulley, and a clutch gap is formed between the end face of the pulley and the surface of the suction cup, and an iron core groove is set on the pulley, which is characterized in that:

The notch of the iron core is provided with an annular limit groove;

The inner ring wall of the iron core groove is sleeved with the iron core shell, and the iron core shell is provided with a cylinder that matches the gap between the inner ring wall of the iron core groove, and a fixed plate is installed at one end of the cylinder, and the fixed plate cooperates with the bottom of the limit groove, and the cylinder is sealed. The coil is connected, the coil is located in the iron core slot, the iron core end cover is connected to the fixed disk, and the iron core end cover is connected to the compressor shell.

Compared with the prior art, the beneficial effects of the utility model are reflected in:

1. The lightweight electromagnetic clutch of the utility model is conducive to reducing the energy consumption of the whole vehicle;

2. Compared with the original structure, the weight of the lightweight electromagnetic clutch of the utility model is reduced by 8%, which not only realizes the lightweight of the electromagnetic clutch, but also helps reduce the manufacturing cost;

3. The lightweight electromagnetic clutch of the utility model reduces the loss of magnetic energy in the air gap, which is beneficial to improving the torque performance of the electromagnetic clutch.

Description of drawings

Shown in Fig. 1 is the structural diagram of the electromagnetic clutch of the present utility model;

Fig. 2 is a structural diagram of the driving disc;

Fig. 3 is a pulley structure diagram;

Figure 4 is a diagram of the coil structure.

Detailed ways:

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

A new type of lightweight electromagnetic clutch, as shown in Figure 1 and Figure 2, includes a drive plate 1 connected to the shaft of the compressor. Shaped transmission plate 3, spring leaf 2 and one end of each transmission plate 3 are riveted by rivets. The transmission plate 3 is embedded with an elastic rubber column pad 5 , the rubber column pad 5 is sleeved with the outer rivet 4 , and the outer rivet 4 is connected with the suction cup 6 .

As shown in FIG. 1 , the compressor housing is assembled and connected to the pulley 7 through bearings, and a clutch gap fit is formed between the end surface of the pulley 7 and the surface of the suction cup 6 . As shown in FIG. 3 , an annular iron core groove 7 a is arranged on the pulley 7 , and an annular limit groove 7 b is arranged at the mouth of the iron core groove 7 a.

As shown in FIG. 1 and FIG. 4 , the inner ring wall of the core slot 7 a is sleeved with the core shell 9 . The iron core shell 9 is provided with a cylindrical body 9b which fits with the inner ring wall of the iron core groove 7a in clearance, and a fixed plate 9a is arranged at one end of the cylindrical body 9b. The fixed plate 9a cooperates with the bottom of the limit groove 7b to limit the relative position between the iron core shell 9 and the pulley 7, as shown in Figure 4, the cylinder 9b is fixed and sealed to connect the coil 8 through the BMC injection molding process, and the coil 8 is located in the iron core Inside the slot 7a. The iron core end cover 10 is fixedly connected to the fixed plate 9a, and the iron core end cover 10 is connected to the compressor casing by screws.

A new type of lightweight electromagnetic clutch, as shown in Figure 1, the principle is summarized as follows:

The power drive pulley 7 from the engine continues to run. After the coil 8 is energized, a magnetic field is generated, and after being strengthened by the inner ring wall of the iron core groove 7a, the pulley 7 and the suction cup 6 are magnetized, so that an electromagnetic force is generated between the pulley 7 and the suction cup 6 to overcome the elastic force of the spring sheet 2 and attract combine. After the pulley 7 is attached to the suction cup 6, frictional force is generated between the two, and the pulley 7 drives the suction cup 6 to rotate, so that the main shaft of the compressor is driven. After the coil 8 was powered off, the magnetic force of the pulley 7 and the sucker 6 disappeared, and under the elastic force of the leaf spring 2, the pulley 7 and the sucker 6 were disengaged from each other, and the compressor shaft lost power.

The iron core shell 9 is in the form of a single cylinder instead of a nested form of double cylinders, so that the weight can be reduced. During installation, the fixed disk 9a and the limiting groove 7b are docked and matched, and there is a small gap between the fixed disk 9a and the limiting groove 7b; the limiting groove 7b can also reduce the weight of the pulley 7.

The closed circuit of the magnetic force line of the electromagnetic clutch of the utility model is: the magnetic force line takes the inner ring wall of the iron core groove 7a as the starting point, passes through the air gap between the cylinder body 9b and the inner ring wall of the iron core groove 7a, and transmits to the inner ring of the iron core groove 7a The wall is then directly transferred to the outer ring wall of the iron core slot 7a (that is, the outer wall of the pulley 7) through the fixed disk 9a, and is transferred to the sucker 6 by the outer ring wall of the iron core slot 7a through the air gap between the pulley 7 and the suction cup 6 , and then transmitted by the suction cup 6 to the bottom of the pulley 7 through the clutch gap, and then transmitted from the bottom of the pulley 7 to the inner ring wall of the iron core groove 7a, thereby forming a closed magnetic circuit inside the clutch.

Claims (1)

1. A new type of lightweight electromagnetic clutch, including a drive plate (1) connected to the shaft of the compressor, the drive plate (1) is connected to a spring plate (2), and the spring plate (2) is connected to a set of transmission plates (3), Each transmission plate (3) is connected to the suction cup (6) through a rivet socketed with an elastic rubber column pad, and the compressor housing is movably connected to the pulley (7), between the end surface of the pulley (7) and the surface of the suction cup (6) A clutch gap is formed, and an iron core groove (7a) is set on the pulley (7), which is characterized in that: The mouth of the iron core slot (7a) is provided with an annular limit slot (7b); The inner ring wall of the iron core groove (7a) is sleeved with the iron core shell (9). One end is provided with a fixed plate (9a), the fixed plate (9a) fits with the bottom of the limit groove (7b), the cylinder (9b) is sealed and connected to the coil (8), and the coil (8) is located in the core groove (7a), fixed The plate (9a) is connected with the iron core end cover (10), and the iron core end cover (1) is connected with the compressor casing.