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MEDIUM-FREQUENCY HERMETICALLY SEALED REFRIGERANT COMPRESSOR CAPABLE OF UNLOADING DURING START

20170082106 ยท 2017-03-23

    Inventors

    Cpc classification

    International classification

    Abstract

    A medium-frequency hermetically sealed refrigerant compressor capable of unloading during start, comprising: an electric connector (2), a front end socket (1), a rear end socket (6), a barrel (7), a medium-frequency motor (3) disposed in the barrel (7), a movable disc (4), a motion transmission sleeve (8), a main shaft (9), a clutch coil (10) and a clutch friction plate (11); the front and back ends of the barrel (7) are respectively connected to the front end socket (1) and the rear end socket (6) the barrel (7) has a stator disc (5) fixed therein cooperating with the movable disc (4); the movable disc (4) and the stator disc (5) are sleeved on one side of the main shaft (9), and the clutch friction plate (11) and the clutch coil (10) are sleeved on another side of the main shaft (9); the movable disc (4) and the clutch friction plate (11) are fixed on a side surface of the main shaft (9); the output shaft of the medium-frequency motor (3) is connected to the clutch coil (10) via the motion transmission sleeve (8); the electric connector (2) is fixed on the barrel (7); and the electric connector (2) is connected to the clutch coil (10). The compressor achieves a low current start, and reduces the impact against the on-board power supply.

    Claims

    1. A medium-frequency hermetically sealed refrigerant compressor capable of unloading during start comprises an electric connector (2), a front end socket (1), a rear end socket (6), a barrel (7), a medium-frequency motor (3) provided inside the barrel (7), a movable disc (4), a motion transmission sleeve (8), a main shaft (9), a clutch coil (10) and a clutch friction plate (11); a front end and a rear end of the barrel (7) are connected with the front end socket (1) and the rear end socket (6) respectively; a stator disc (5) cooperating with the movable disc (4) is fixed in the barrel (7); the movable disc (4) and the stator disc (5) are sleeved on one side of the main shaft (9); the clutch friction plate (11) and the clutch coil (10) are sleeved on another side of the main shaft (9); the movable disc (4) and the clutch friction plate (11) are fixed on a side surface of the main shaft (9); an output shaft of the medium-frequency motor (3) is connected with the clutch coil (10) via the motion transmission sleeve (8); the electric connector (2) is fixed on the barrel (7); the electric connector (2) is connected with the clutch coil (10).

    2. The medium-frequency hermetically sealed refrigerant compressor capable of unloading during start according to claim 1, wherein the stator disc (5) is fixed in the barrel (7) by using screws.

    3. The medium-frequency hermetically sealed refrigerant compressor capable of unloading during start according to claim 1, wherein a seal ring is provided between the stator disc (5) and the side surface of the main shaft (9).

    Description

    BRIEF DESCRIPTION OF THE DRAWINGS

    [0009] FIG. 1 is a structural view of the present invention.

    [0010] In the figure, 1 refers to a front end socket, 2 refers to an electric connector, 3 refers to a medium-frequency motor, 4 refers to a movable disc, 5 refers to a stator disc, 6 refers to a rear end socket, 7 refers to a barrel, 8 refers to a motion transmission sleeve, 9 refers to a main shaft, 10 refers to clutch coil, and 11 refers to clutch friction plate.

    DETAILED DESCRIPTION OF THE INVENTION

    [0011] The present invention will be described further in detail below with reference to the figure.

    [0012] In FIG. 1, the medium-frequency hermetically sealed refrigerant compressor provided by the present invention comprises an electric connector 2, a front, end socket 1, a rear end socket 6, a barrel 7, a medium-frequency motor 3 provided inside the barrel 7, a movable disc 4, a motion transmission sleeve 8, a main shaft 9, a clutch coil 10 and a clutch friction plate 11. A front end and a rear end of the barrel 7 are connected with the front end socket 1 and the rear end socket 6 respectively. A stator disc 5 cooperating with the movable disc 4 is fixed in the barrel 7. The movable disc 4 and the stator disc 5 are sleeved on one side of the main shaft 9. The clutch friction plate 11 and the clutch coil 10 are sleeved on another side of the main shaft 9. The movable disc 4 and the clutch friction plate 11 are fixed on a side surface of the main shaft 9. An output shaft of the medium-frequency motor 3 is connected with the clutch coil 10 via the motion transmission sleeve 8. The electric connector 2 is fixed on the barrel 7. The electric connector 2 is connected with t he clutch coil 10. The stator disc 5 is fixed in the barrel 7 by using screws. A seal ring is provided between the stator disc 5 and the side surface of the main shaft 9. The clutch friction plate 11 is made by iron material.

    [0013] The present invention has the following working principle: At first, power is not supplied by the electric connector 2 to the clutch coil 10, and the clutch coil and the clutch friction plate 11 are separated; next, activate the medium-frequency motor 3 so that the medium-frequency motor 3 drives the clutch coil 10 to rotate via the motion transmission sleeve 8; when rotation of the medium-frequency motor 3 becomes stable, the electric connector 2 supplies electricity to the clutch coil 10, and then the clutch coil 10 is magnetized by the received electricity; the clutch coil 10 and the clutch friction plate 11 will then be mutually attracted to each other to drive the main shaft 9 to rotate via the medium-frequency motor 3; the movable disc 4 at another side of the main shaft will then also rotate to achieve compression refrigeration.