A high current load switch
A load switch, high-current technology, applied in high-voltage/high-current switches, electrical switches, circuits, etc., can solve the problems of cumbersome manual crimping operation, no protection, horizontal current failure, etc., and achieve convenient adjustment of contact opening distance and The effect of contact pressure, high protection level and low contact temperature rise
Active Publication Date: 2019-05-21
武汉凯禾电气有限责任公司
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Problems solved by technology
[0003] At present, the horizontal electric device adopts the crude spiral horizontal electric block crimping method without protection, and there are many problems in the use process: the manual crimping operation is cumbersome, which directly affects the operation efficiency of the start-stop tank; it is easily corroded by on-site acid gas and liquid , The crimping resistance is too large, so that the residual current of the electrolytic cell is too large after short-circuiting, and the phenomenon of "igniting and firing" will occur during the operation process due to the failure of the horizontal power, resulting in an emergency power failure of the whole series, which seriously affects the production operation and power supply safety; stop the tank During the period, the average power consumption of a single short interface is more than 2 kilowatts, and the energy loss is relatively large
Method used
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Embodiment 1
[0031] Such as Figure 1-7 As shown, a large current load switch includes a first static contact plate 1 and a second static contact plate 2, and also includes a roller contact assembly 3. One end of the first static contact plate 1 is provided with a first contact contact Slope 101, one end of the second static contact plate 2 is provided with a second contact contact slope 201,
[0032] The roller contact assembly 3 includes a roller contact 301 , driven by the reciprocating drive assembly 4 , the roller contact 301 contacts or separates from the first contact slope 101 and the second contact slope 201 .
[0033] The above-mentioned roller contact assembly 3 also includes a roller contact shaft 305 and a roller contact rod 304, the two ends of the roller contact shaft 305 are respectively sleeved with a roller contact 301, and one end of the roller contact rod 304 is provided with a spring stopper 303, the spring stopper 303 is connected with the connecting ring piece 302 s...
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The invention discloses a large current load switch which includes a first static contact plate and a second static contact plate, and also a roller contact assembly. One end of the first static contact plate is provided with a first contact contacting tilted surface. One end of the second static contact plate is provided with a second contact contacting tilted surface. The roller contact assembly includes a roller contact which contacts or separates from the first static contacting tilted surface and the second contacting tilted surface while driven by a reciprocating driving assembly. According to the invention, the large current load switch has the characteristics of large structure and strength, small size and high protection level. The large current load switch realizes self-locking circuit function, is labor-saving, can be self-adjusted, effectively prevents loss of roller contacts, and is compatible with on-off load and low rising of contact temperature.
Description
technical field [0001] The invention relates to the technical field of DC switching devices, in particular to a large current load switch. Suitable for high current on-off. Background technique [0002] In the non-ferrous metal smelting industry, nickel electrolysis mainly adopts DC low-voltage high-current electrolysis process. The start-stop operation of nickel electrolysis generally uses a horizontal electric device to short-circuit the electrolytic cell to complete the nickel production operation when nickel is produced at a high current. [0003] At present, the horizontal electric device adopts the crude spiral horizontal electric block crimping method without protection, and there are many problems in the use process: the manual crimping operation is cumbersome, which directly affects the operation efficiency of the start-stop tank; it is easily corroded by on-site acid gas and liquid , The crimping resistance is too large, so that the residual current of the electr...
Claims
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IPC IPC(8): H01H33/02H01H33/12H01H33/42H01H33/53H01H1/16H01H1/06
CPCH01H1/06H01H1/16H01H33/02H01H33/121H01H33/42H01H33/53
Inventor 周健
Owner 武汉凯禾电气有限责任公司