Overcurrent protection apparatus for refrigeration and condition

Details Overcurrent protection apparatus for refrigeration and condition Overcurrent protection apparatus for refrigeration and condition

1998-02-24

1999-05-11

Leja, Ronald W.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Compressor protective circuits

361 24, 361103, 361115, H02H7/00

Patent

active

059034181

ABSTRACT:
Motor protection for air conditioning and refrigeration compressors includes in a first embodiment a cluster block (22) having a seat for a hermetic motor protector (24, 24') and mounting a combination terminal/fusible link (26/26d, 26d') in which the motor protector and combination terminal/fusible link can be exposed to cooling fluid contained in the compressor container and the cluster block is mounted on a lead-through pin (18a) of a header (18) in the container wall. In a second embodiment the cluster block (30) is mounted on all three pins (18a, 18b, 18c) of header (18) with pin connectors received in parallel extending channels (30a, 30b, 30c) of the cluster block. In another embodiment the cluster block (40) is irregular in configuration in order to accommodate available space in certain compressor containers and has a lid (40g) to enclose the motor protector. In another embodiment a base member (52) is tied directly to the stator winding and has a snap-on member (58) to capture the motor protector (24) in the motor protector seat.

REFERENCES:
patent: 4458231 (1984-07-01), Senor
patent: 4490988 (1985-01-01), Vogel
patent: 4791329 (1988-12-01), Ubukata et al.
patent: 5015985 (1991-05-01), Ubukata et al.
Japanese Published Application No. 7-241061 dated Sep. 12, 1995 (No English Translation Available at this time).

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