Fluid-pressure drive device for circuit breaker
The invention provides a fluid-pressure drive device for a circuit breaker, which can restrain pressure rise through simple structures, and has the characteristics of independent structure, low cost and high reliability. The drive device includes: a contact (2) including a moving contact (2b) and a...
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| creator | SHINJI SETO DAISUKE EBISAWA |
| description | The invention provides a fluid-pressure drive device for a circuit breaker, which can restrain pressure rise through simple structures, and has the characteristics of independent structure, low cost and high reliability. The drive device includes: a contact (2) including a moving contact (2b) and a stationary contact (2a); a rod (3) connected to the moving contact (2b); a piston (10) which is connected to the rod (3) and is slidably installed in a cylinder and which opens and closes the contact (2); a fluid pressure source (5) for pressure-feeding a working fluid; and a control valve for driving the piston (10). In the drive device, the piston (10) forms a partition between a supply pressure chamber (12i) communicated with the fluid pressure source (5) and a small pressure-receiving area chamber (9) which are on the moving contact side of the piston and a cylinder control chamber (17) on the opposite side of the piston, and the control valve controls supplying and discharging the working fluid to and from the cylinder control chamber (17). |
| format | Patent |
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The drive device includes: a contact (2) including a moving contact (2b) and a stationary contact (2a); a rod (3) connected to the moving contact (2b); a piston (10) which is connected to the rod (3) and is slidably installed in a cylinder and which opens and closes the contact (2); a fluid pressure source (5) for pressure-feeding a working fluid; and a control valve for driving the piston (10). In the drive device, the piston (10) forms a partition between a supply pressure chamber (12i) communicated with the fluid pressure source (5) and a small pressure-receiving area chamber (9) which are on the moving contact side of the piston and a cylinder control chamber (17) on the opposite side of the piston, and the control valve controls supplying and discharging the working fluid to and from the cylinder control chamber (17).</description><language>eng</language><subject>BASIC ELECTRIC ELEMENTS ; BLASTING ; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ; ELECTRIC SWITCHES ; ELECTRICITY ; EMERGENCY PROTECTIVE DEVICES ; FLUID-PRESSURE ACTUATORS ; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS ; HEATING ; HYDRAULICS OR PNEUMATICS IN GENERAL ; LIGHTING ; MECHANICAL ENGINEERING ; RELAYS ; SELECTORS ; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL ; WEAPONS</subject><creationdate>2015</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150318&DB=EPODOC&CC=CN&NR=104425175A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150318&DB=EPODOC&CC=CN&NR=104425175A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SHINJI SETO</creatorcontrib><creatorcontrib>DAISUKE EBISAWA</creatorcontrib><title>Fluid-pressure drive device for circuit breaker</title><description>The invention provides a fluid-pressure drive device for a circuit breaker, which can restrain pressure rise through simple structures, and has the characteristics of independent structure, low cost and high reliability. The drive device includes: a contact (2) including a moving contact (2b) and a stationary contact (2a); a rod (3) connected to the moving contact (2b); a piston (10) which is connected to the rod (3) and is slidably installed in a cylinder and which opens and closes the contact (2); a fluid pressure source (5) for pressure-feeding a working fluid; and a control valve for driving the piston (10). In the drive device, the piston (10) forms a partition between a supply pressure chamber (12i) communicated with the fluid pressure source (5) and a small pressure-receiving area chamber (9) which are on the moving contact side of the piston and a cylinder control chamber (17) on the opposite side of the piston, and the control valve controls supplying and discharging the working fluid to and from the cylinder control chamber (17).</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>BLASTING</subject><subject>DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRIC SWITCHES</subject><subject>ELECTRICITY</subject><subject>EMERGENCY PROTECTIVE DEVICES</subject><subject>FLUID-PRESSURE ACTUATORS</subject><subject>FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS</subject><subject>HEATING</subject><subject>HYDRAULICS OR PNEUMATICS IN GENERAL</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>RELAYS</subject><subject>SELECTORS</subject><subject>SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2015</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNB3yynNTNEtKEotLi4tSlVIKcosA5KpZZnJqQpp-UUKyZlFyaWZJQpJRamJ2alFPAysaYk5xam8UJqbQdHNNcTZQze1ID8-tbggMTk1L7Uk3tnP0MDExMjU0NzU0ZgYNQAwPirq</recordid><startdate>20150318</startdate><enddate>20150318</enddate><creator>SHINJI SETO</creator><creator>DAISUKE EBISAWA</creator><scope>EVB</scope></search><sort><creationdate>20150318</creationdate><title>Fluid-pressure drive device for circuit breaker</title><author>SHINJI SETO ; DAISUKE EBISAWA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN104425175A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2015</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>BLASTING</topic><topic>DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRIC SWITCHES</topic><topic>ELECTRICITY</topic><topic>EMERGENCY PROTECTIVE DEVICES</topic><topic>FLUID-PRESSURE ACTUATORS</topic><topic>FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS</topic><topic>HEATING</topic><topic>HYDRAULICS OR PNEUMATICS IN GENERAL</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>RELAYS</topic><topic>SELECTORS</topic><topic>SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>SHINJI SETO</creatorcontrib><creatorcontrib>DAISUKE EBISAWA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SHINJI SETO</au><au>DAISUKE EBISAWA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Fluid-pressure drive device for circuit breaker</title><date>2015-03-18</date><risdate>2015</risdate><abstract>The invention provides a fluid-pressure drive device for a circuit breaker, which can restrain pressure rise through simple structures, and has the characteristics of independent structure, low cost and high reliability. The drive device includes: a contact (2) including a moving contact (2b) and a stationary contact (2a); a rod (3) connected to the moving contact (2b); a piston (10) which is connected to the rod (3) and is slidably installed in a cylinder and which opens and closes the contact (2); a fluid pressure source (5) for pressure-feeding a working fluid; and a control valve for driving the piston (10). In the drive device, the piston (10) forms a partition between a supply pressure chamber (12i) communicated with the fluid pressure source (5) and a small pressure-receiving area chamber (9) which are on the moving contact side of the piston and a cylinder control chamber (17) on the opposite side of the piston, and the control valve controls supplying and discharging the working fluid to and from the cylinder control chamber (17).</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE DEVICES FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING RELAYS SELECTORS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS |
| title | Fluid-pressure drive device for circuit breaker |
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