摘要:
An electronic circuit apparatus for a compressor includes a board and a case. One corner of the board is fixed to case such that the board cannot move in the thickness direction and is movable in the flattening direction. According to this structure, even when an electronic part generates heat or outside air temperature of the case varies, the expansion or contraction of the board in the flattening direction is not affected by the expansion or contraction of the case in the flattening direction. Therefore, it is possible to prevent the deformation of the board and stress from being repeatedly applied to a soldering portion of the electronic part. As a result, it is possible to ensure the reliability of soldering strength for a long time.
摘要:
A device for protecting an electric component for a compressor is provided, where the device is equipped with a bracket formed with an insert portion and a locking part having a locking hole, facing each other; and a cover formed with a clamp for clamping the distal end of the insert portion, and a ratchet fastened to the locking hole, and where the insert portion is formed of a plurality of projections with different length of projected portions in insert direction. This makeup enables only one ratchet to fix the cover securely to the bracket, as well as makes the cover to be resistant to fracture owing to a small distortion of the cover when detaching.
摘要:
A device for protecting an electric component for a compressor is provided, where the device is equipped with a bracket formed with an insert portion and a locking part having a locking hole, facing each other; and a cover formed with a clamp for clamping the distal end of the insert portion, and a ratchet fastened to the locking hole, and where the insert portion is formed of a plurality of projections with different length of projected portions in insert direction. This makeup enables only one ratchet to fix the cover securely to the bracket, as well as makes the cover to be resistant to fracture owing to a small distortion of the cover when detaching.
摘要:
A data transfer apparatus which includes data devices which access a common, shared memory. Each data device is connected to a corresponding data buffer. A memory bus is connected to each of the data buffers and to the shared memory to allow data to be transferred between the data buffers and between the data devices and the shared memory via the data buffers. Data is transferrable between a transferring data device to a receiving data device by transferring data from the transferring data device to the data buffer corresponding to the transferring data device, from the data buffer corresponding to the transferring data device to the memory bus, from the memory bus to the data buffer corresponding to the receiving data device, and then from the data buffer corresponding to the receiving data device to the receiving data device. A data transfer controller controls the data buffers and the shared memory so that the shared memory does not transfer data onto the memory data bus when, during the transfer of data between the transferring data device and the receiving data device, data is being transferred between the data buffer corresponding to the transferring data device and the data buffer corresponding to the receiving data device via the memory bus.
摘要:
An electronic circuit apparatus for a compressor includes a board and a case. One corner of the board is fixed to case such that the board cannot move in the thickness direction and is movable in the flattening direction. According to this structure, even when an electronic part generates heat or outside air temperature of the case varies, the expansion or contraction of the board in the flattening direction is not affected by the expansion or contraction of the case in the flattening direction. Therefore, it is possible to prevent the deformation of the board and stress from being repeatedly applied to a soldering portion of the electronic part. As a result, it is possible to ensure the reliability of soldering strength for a long time.