31 results about "Break spring" patented technology

The invention discloses a permanent-magnet vacuum circuit breaker, which comprises a circuit breaker shell body, three vacuum circuit breaker bodies and a permanent-magnet actuating mechanism, wherein each vacuum circuit breaker comprises a vacuum arc-extinguishing chamber, a movable contact, a fixed contact and an insulation draw rod which is connected with the movable contact, the permanent-magnet actuating mechanism comprises three driving components, a main shaft, a driving turn arm which is arranged on the middle portion of the main shaft, a permanent-magnet driving mechanism which is used for driving the main shaft to rotate, and two breaking spring assemblies, wherein the two breaking spring assemblies are symmetrically arranged on both sides of the driving turn arm, each breaking spring assembly comprises a breaking spring and a breaking spring driving turn arm, wherein the breaking spring driving turn arm is fixed on the main shaft, the upper end of the breaking spring is correspondingly fixed with the shell body of the circuit breaker, and the lower end thereof is connected with the breaking spring driving turn arm. The invention has the advantages that the stability and the reliability are effectively guaranteed during the long-term use, simultaneously, the cost is reduced as much as possible, and the service life of the whole machine is prolonged.

The invention discloses a breaking spring compression device, which comprises a support seat, a drive mechanism and a locking structure, wherein the support seat is provided with a limiting structure for moving towards one side, far away from a breaking spring, of a spring seat in a breaking spring assembly; the drive mechanism comprises a drive part and a transmission part; the transmission part moves towards the direction of the spring seat under the action of the drive part and compresses the breaking spring; a perforating hole through which a pull rod of the breaking spring assembly passes is formed in the transmission part; and the locking structure is used for keeping the breaking spring in a compressed state after the breaking spring is compressed in place. Through the compression device disclosed by the invention, the breaking spring can be conveniently pre-compressed, so that subsequent installation of the breaking spring assembly on a breaker is facilitated.

The invention discloses a monostable permanent magnet mechanism provided with combined breaking springs and used for a high-voltage circuit breaker. The mechanism comprises a non-magnetic casing (2), a permanent magnet retaining mechanism (3), an electromagnetic driving mechanism (4), a combined breaking spring system (5), a non-magnetic material cushion block (10) and a guide bar (1), wherein the permanent magnet retaining mechanism (3), the electromagnetic driving mechanism (4), the combined breaking spring system (5) and the non-magnetic material cushion block (10) are arranged in the non-magnetic casing (2); the guide bar (1) penetrates the non-magnetic casing (2) and is in sliding connection with the non-magnetic casing (2); the permanent magnet retaining mechanism (3) and the electromagnetic driving mechanism (4) are isolated by the non-magnetic material cushion block (10); the combined breaking spring system (5) is arranged in the permanent magnet retaining mechanism (3) and the electromagnetic driving mechanism (4) along the guide bar (1). By means of the breaking spring system combined by a whole-course breaking spring and an interval breaking spring, the counter force on the closing front half section is reduced, and accordingly, the closing current peak value is decreased, the closing time is shortened, and energy consumed by closing is reduced.

There is provided a spring comprised of a wire which includes an elastic, coiled central portion and opposing end portions formed as hooks. Each hook terminates in an end having a hole therethrough. The spring is useful with an exhaust system of the type having a pair of sections joined but not affixed to one another to thereby form a flexible joint. A loop is fixedly connected to each section adjacent to the joint. The opposing hooks of the spring are securely received by the loops, and a safety wire is received through the hole in the end of each hook and secured to the corresponding loop. In an aircraft having an exposed exhaust system, the safety wire prevents a broken spring or loop from impacting and damaging vital components of the aircraft, particularly a pusher propeller positioned to the rear of the exhaust system.

The invention discloses an integrated self interlocking mechanism with a brake breaking function. The integrated self interlocking mechanism comprises a pedestal, a pull rod, a brake breaking spring,a magnetic shell, a tripping coil, a lock tongue, a reset spring and a yoke, a longitudinal hole penetrating the pedestal is formed in the pedestal, and the middle part of the pull rod movably penetrates the longitudinal hole; a limit block is fixed on one end, extending out the pedestal, of the pull rod, and the brake breaking spring sheathes the other end, extending out the pedestal, of the pullrod; the magnetic shell is fixed on one side surface of the pedestal; one end of the tripping coil is arranged at the bottom of the magnetic shell, the other end of the tripping coil clings one sidesurface of the yoke, and the other side surface of the yoke is fixed on the pedestal; a lock hole communicated with the longitudinal hole is formed in the yoke and the pedestal corresponding to the center of the tripping coil, one end of the lock tongue is placed at the center of the tripping coil, the other end of the lock tongue is placed in the lock hole, and the reset spring is located betweenthe lock tongue and the bottom of the magnetic shell; and an interlocking slot is formed in the periphery of the pull rod. The integrated self interlocking mechanism disclosed by the invention integrates three functions, namely a brake closing self interlocking function, a brake breaking driving function and a stroke adjusting function, into a whole, so that not only parts are reduced but also structure is simple and compact.

A wheel center steam fishing rod integrates a rod with wheels and is convenient for line controlling, which comprises a horizontal wheel body, a retracted fishing rod and a handle. The horizontal wheel body comprises a rocking handle combination and a wire traverse. The horizontal wheel body is provided with a left baffle and a right baffle and is provided with an upward cut. The horizontal wheel body also includes a clutch. The left baffle is provided with a wheel controlling opening at the left. A wheel controlling slot is arranged on the inner surface of the left and the right baffles, in which a wheel axis with wire winding wheels is arranged. A break circle is fixed at the left side of a break spring base and the right side of the right baffle. A brake shift lever is actively connected with the right baffle via a spring of a brake shift lever, while the brake shift lever is correspondingly provided with reactionary tooth blades. The right side of the brake spring base is sleeved with a brake plate, while the right side of the brake plate is respectively sleeved with a compressed spring on the brake spring base. The wheel axis successively drills through the right baffle, the brake spring base and the brake plate, on the corresponding position to the brake circle of which is designed with brake buttons. The brake circle and brake buttons are connected via brake pieces. The right end of the wheel axis is sleeved with wire wheel teeth.

The invention provides a high-voltage switch operating mechanism, and relates to an interlocking mechanism of a breaker. The high-voltage switch operating mechanism comprises an energy storage device, a three-connecting-rod device, a switching-on latch locker, a switching-off latch locker, an oil buffer device, and a mechanical anti-bouncer. The energy storage device ensures a breaking spring which is on a same center line with a closing spring to store energy when the closing spring is released, preventing energy loss generated by a lever camber line, and saving closing spring force. The structure is low in impact on a mechanism, and life of a mechanism machine is prolonged. The switching-on locker makes locking and tripping being more aligned with a circumference mechanics force-saving principle, closing operation force becomes small, and reliability is improved. Technical problems that closing-breaking and breaking-closing of a high-voltage breaker are not stable are solved. The switching-off latch locker uses an integrated structure of a switching-off connecting lever, a long shaft, and a spring, and solves technical problems that closing-breaking and breaking-closing of a high-voltage breaker are not stable. The three-connecting-rod structure presses the breaking spring in a straight line, thereby reducing mechanism component impact forces, reducing energy loss, and improving mechanism machine life.

The invention discloses a rapid grounding switch, which solves the problems in the prior art that the breaking speed between grounding fractures of a rapid grounding switch is slow, an effect of rapidly breaking induced current is difficult to realize, and the ace burning is uneasy to put out, SF6 gas with a good insulating property must be taken as insulating gas in the prior art for achieving the purpose of rapidly breaking induced currents, thereby causing environmental pollution. The rapid grounding switch disclosed by the invention is characterized in that a moving conductor is arranged in a cavity of a grounding conductor, a conductive tube is installed in the cavity of an insulating conductor, a breaking spring and a conducting rod are arranged in the cavity of the moving conductor, and a sliding shaft arranged on the moving conductor can slide in a U-shaped groove arranged at the front end of a driving arm. The rapid grounding switch disclosed by the invention has the advantages that because the breaking spring is taken as a dynamic force pf the rapid breaking of the grounding switch, and through the rapid breaking of the conducting rod and the generation of compressed air blowing, an effect of instant arc extinguishing between the grounding fractures is achieved, so that the rapid breaking of the grounding switch is realized, therefore, clean dry air or nitrogen gas can be adopted as insulating gas, therefore equipment becomes more environmentally-friendly.

The present invention provides a spring operator for a breaker and a breaker, which can not only realize high-speed movement of the contact point of the breaker, but also reduce the number of parts and reduce the size of the operator. In order to solve the above problems, it is characterized in that the driving force of the closing spring (28) for closing the fixed contact (62) and the movable contact (63) of the blocking part (405) is transmitted to the cam (3) , the driving force of the cam (3) is transmitted and the blade part is extended in four directions and installed on the main rod (5) on the main shaft: when the blocking part (405) is turned on, it is connected with the The first roller (6) that the cam (3) contacts; the first pin (5b) that connects the connecting rod (68), the second pin (5b) that connects the blocking spring link (25) that transmits the driving force of the blocking spring (26) The pin (5a), and the second roller (7) that transmits the driving force of the shutoff spring (26) to the shutoff control mechanism (401), transmit and maintain these driving forces in substantially the same plane.

The invention relates to a heat-fusing body, comprising a metal shell, temperature-sensitive particles, a front gasket, a rear gasket, drum-shaped springs, a breaking electrode, breaking springs, porcelain beads, a riveting line and a contact line, wherein a port of the metal shell at the connecting position of the contact line and the porcelain beads is sealed by epoxy resin. The heat-fusing body is characterized in that the two ends of each porcelain bead are respectively provided with a convex head. The heat-fusing body has the advantages that the electric insulativity of a finished product can be improved, the used amount of epoxy resin is reduced and the collapse does not easily occur because the port is sealed by the epoxy resin.

The invention relates to a spring operating mechanism and a circuit breaker. The circuit breaker comprises a contact and the spring operating mechanism. The spring operating mechanism comprises a spindle, a breaking connecting lever fixedly connected with the spindle, a buffer component, a spring core bar and a breaking spring, wherein the spring core bar is connected with the breaking connectinglever by virtue of a pin shaft, the spring core bar is provided with a guide holder enabling the spring core bar to move along the length direction, and one of the breaking connecting lever and the spring core bar is provided with a slot hole matched with the pin shaft, so that swinging motion of the breaking connecting lever and linear motion of the spring core bar are not mutually interfered; and the buffer component is provided with an interception side vertical to the spring core bar. Reset response of the breaking spring in a working process of the circuit breaker enables the spring corebar to maintain the linear motion when being guided by the slot hole and the guide holder, lateral impact of the spring core bar to the buffer component is reduced, life of the buffer component is prolonged, and the linear motion of the spring core bar enables parameters of the circuit breaker to be more stable, so that mechanical characteristics and safety and reliability performances of the circuit breaker are improved.

A breaker comprises left and right breaking arms, a base, left and right pads, electromagnet, breaking spring, breaking rod and commute controller. The left and right breaking arms are jointly linked to the two ends of the base. The breaking spring links the top ends of the arms. The breaking pads are fixed to the middle of the breaking arms. The electromagnet is installed in between the two arms and to the top of the spring. The electromagnet is an intermediate range one and to the back end of it fixed a joint board on which fixed the commute controller. The joint board is jointly linked to the right arm. The front end of the electromagnet is slidingly linked to the left arm through a supporting board. The sliding rod to the front end of the electromagnet is matching against the left arm.

The invention discloses an electromagnetic valve device with a backflow preventing function and an automatic sewage isolating function. The electromagnetic valve device with the backflow preventing function and the automatic sewage isolating function comprises a valve body and a valve deck which are matched with each other. The valve deck is provided with a first flushing electromagnetic valve anda second flushing electromagnetic valve. The valve body is of an integrated structure. A four-way embedded piece is assembled in the middle of the valve body. The valve body is provided with a waterinlet, a first water outlet and a second water outlet, wherein the water inlet, the first water outlet and the second water outlet communicate. The first water outlet and the second water outlet communicate with vacuum breakers on the corresponding sides correspondingly. Each vacuum breaker comprises a vacuum breaking valve deck, a vacuum breaking valve element, a vacuum breaking spring and a sealrubber film, wherein the vacuum breaking valve deck is provided with a vent opening, the vacuum breaking valve element is arranged in the vacuum breaking hole of the valve body, the vacuum breaking spring is arranged between the vacuum breaking valve element and the valve body, and the seal rubber film is arranged outside the vacuum breaking valve element. The valve deck is provided with an anti-siphon device. A seal membrane sheet is arranged at the valve opening between the valve body and the valve deck. The electromagnetic valve device with the backflow preventing function and the automatic sewage isolating function has the advantages of being compact in structure and convenient to assemble and maintain.

The invention discloses an integrated intelligent permanent magnet circuit breaker. The integrated intelligent permanent magnet circuit breaker is characterized in that a capacitor 8, a permanent magnet driver 7, a permanent magnet mechanism 6 and a surge controller 3 are arranged in a case 1, namely, a control terminal and the permanent magnet circuit breaker are designed into one case; a short shaft 13 is arranged at one end of the permanent magnet mechanism 6 and is connected with a long shaft 5; long pins 4 are arranged at two sides of the long shaft 5 respectively; one end of each breaking spring 2 is fixed on the corresponding long pin 4 and the other end of each breaking spring 2 is connected with the case 1; the surge controller 3 is located below the breaking springs 2; the tensile force, acting on the long pins 4, of the breaking springs 2 is opposite to the closing retention force of the permanent magnet mechanism 6; a breaking-closing shaft 11 is arranged on a side plate 9 of the case; travel switches 10 are symmetrically arranged at two sides of one end, in the case 1, of the breaking-closing shaft 11; and a breaking-closing handle 12 is arranged outside the case 1. According to the integrated intelligent permanent magnet circuit breaker, a control terminal box body and an installation material are saved, installation and construction are convenient, a connection cable is omitted, the hidden danger caused by cable ageing is reduced and the security performance is improved.

The invention provides a high-voltage switch operating mechanism, and relates to an interlocking mechanism of a breaker. The high-voltage switch operating mechanism comprises an energy storage device, a three-connecting-rod device, a switching-on latch locker, a switching-off latch locker, an oil buffer device, and a mechanical anti-bouncer. The energy storage device ensures a breaking spring which is on a same center line with a closing spring to store energy when the closing spring is released, preventing energy loss generated by a lever camber line, and saving closing spring force. The structure is low in impact on a mechanism, and life of a mechanism machine is prolonged. The switching-on locker makes locking and tripping being more aligned with a circumference mechanics force-saving principle, closing operation force becomes small, and reliability is improved. Technical problems that closing-breaking and breaking-closing of a high-voltage breaker are not stable are solved. The switching-off latch locker uses an integrated structure of a switching-off connecting lever, a long shaft, and a spring, and solves technical problems that closing-breaking and breaking-closing of a high-voltage breaker are not stable. The three-connecting-rod structure presses the breaking spring in a straight line, thereby reducing mechanism component impact forces, reducing energy loss, and improving mechanism machine life.

The invention relates to a thermal link for an electric cooker. The thermal link comprises a metal shell, temperature-sensitive particles, a front gasket, a back gasket, drum-shaped springs, a breaking electrode, breaking springs, porcelain beads, rivet lines and contact lines, wherein metal shell ports at the joints of the contact lines and the porcelain beads are sealed with epoxy resin. The thermal link is characterized in that the temperature-sensitive particles comprise the following components in percentage by weight: 40-60 percent of p-methoxybenzoic acid, 10-40 percent of hexanedioic acid and 5-30 percent of mannitol. The thermal link for the electric cooker has the advantage of optimal melting temperature.

The invention relates to a breaking spring mounting support and a breaker employing the same. The breaking spring mounting support comprises a guide part and a spring seat, wherein the axis of the guide part extends along the up-and-down direction; the guide part is in a split structure and comprises a pull rod and a guide rod; the upper end of the pull rod is used for being connected with a transmission crank arm; the lower end of the guide rod is used for being arranged on a support plate in a guiding manner; the spring seat is arranged on the guide rod; the spring seat and / or the guide rod are / is in transmission connection with the pull rod via threads; and reset force of a breaking spring is simultaneously applied to the spring seat and the guide rod in the adjusting process. The guide rod is arranged on the support plate in the guiding manner; and tension of the guide rod is applied to the spring seat, but not like the prior art that the reset force of the breaking spring is only applied to the spring seat, so that the problem of damage to inner threads of the spring seat in the prior art due to fact that the spring seat easily deflects and is unbalanced under the reset force of the breaking spring in the adjusting process is solved.

The invention provides a single-phase magnetic-keeping operating mechanism, which comprises an upper magnet yoke, a lower magnet yoke, a magnetic sleeve, a movable iron core assembly, a lower plastic end block and a metal fixed pressure plate, wherein a coil is arranged in the middle of the upper magnet yoke, the lower magnet yoke and the sleeve; the movable iron core assembly comprises a movable iron core and a plastic seal cover; the plastic seal cover is arranged at the lower part of the movable iron core assembly through a thread; an air-gap dustproof bead is arranged at the upper end part of the movable iron core; the middle part of the movable iron core passes through an operating pull rod, a breaking spring and a closing spring; the movable core iron runs between the plastic end block and the upper magnet yoke in a limiting manner, and finishes mechanism operation through the operating pull rod through cooperation of the breaking spring and the closing spring; and a photoelectric sensing element is embedded into the plastic end block. The single-phase magnetic-keeping operating mechanism provided by the invention forms the magnetic sleeve by low-cost alloy structure steel and has an airtight dustproof straight motion structure; friction blockage of mechanism motion is completely avoided through limiting of the end part of the movable iron core and position and speed photoelectric signal transmission; and low cost, high reliability, intelligent monitoring and long-lifetime operation of the operating mechanism are achieved.

The invention discloses a data acquisition and transmission circuit, which is used for detecting whether a track damping spring is broken. A track damping spring break detecting circuit comprises a sensing circuit, a data processing circuit and a transmission circuit. The sensing circuit senses the formation and change of a spring, so as to obtain real-time data about the spring, determines a broken spring according to the difference between data of a normal spring and the broken spring, can identify the existence of the broken spring in a convenient and real-time manner, facilitates the rapidorbit risk elimination, and ensures the safety of orbital operation.

The invention relates to a three-station switch with the capability of breaking a bus transfer current and solves the problems that a moving contact of the existing three-station switch has low moving speed and SF6 gas with good insulating capacity needs to be used as insulating gas for realizing rapidly breaking of the bus transfer current, so that the environment pollution can be caused. The three-station switch is characterized in that an isolation breaking conductor is arranged in an inner cavity of an isolation conductor; an isolation conductor contact finger spring is arranged in the isolation breaking conductor; a moving conductor is arranged in an inner cavity of a middle conductor; a breaking spring and a conducting rod are arranged in an inner cavity of the moving conductor; a rack is fixedly connected in a rack mounting groove processed on the moving conductor; and the middle conductor is provided with a gear meshed with the rack. The three-station switch has the beneficial effects that by rapidly breaking the conducting rod and generating compressed air blast, the rapid breaking of an isolation switch is realized and the aim of extinguishing an electric arc generated by the bus transfer current is fulfilled, so clean and dry air or nitrogen can be used as the insulating gas, the SF6 gas does not need to be used as the insulating gas and equipment is more environmental-friendly.

An air circuit breaker, a breaking spring of the air circuit breaker, and its connection method are disclosed. The air circuit breaker includes: a cam; a driving lever connected with the cam and rotated; a closing spring compressed by the driving lever; a plurality of links that transfer a driving force generated when the closing spring is stretched; a switching shaft connected with one or the links by a connection shaft and rotated according to movement of the link; and a breaking spring having a fixing hole with one side opened at one end portion thereof, so as to be fixed to the connectionshaft perpendicularly in an axial line direction of the connection shaft. A space for assembling does not need to be formed at an end portion of the connection shaft, obtaining a compact structure. In addition, a tool can be simplified, an installation can be facilitated, an assembling time can be shortened, and a fabrication cost can be reduced.

The invention discloses a permanent-magnet vacuum circuit breaker, which comprises a circuit breaker shell body, three vacuum circuit breaker bodies and a permanent-magnet actuating mechanism, wherein each vacuum circuit breaker comprises a vacuum arc-extinguishing chamber, a movable contact, a fixed contact and an insulation draw rod which is connected with the movable contact, the permanent-magnet actuating mechanism comprises three driving components, a main shaft, a driving turn arm which is arranged on the middle portion of the main shaft, a permanent-magnet driving mechanism which is used for driving the main shaft to rotate, and two breaking spring assemblies, wherein the two breaking spring assemblies are symmetrically arranged on both sides of the driving turn arm, each breaking spring assembly comprises a breaking spring and a breaking spring driving turn arm, wherein the breaking spring driving turn arm is fixed on the main shaft, the upper end of the breaking spring is correspondingly fixed with the shell body of the circuit breaker, and the lower end thereof is connected with the breaking spring driving turn arm. The invention has the advantages that the stability and the reliability are effectively guaranteed during the long-term use, simultaneously, the cost is reduced as much as possible, and the service life of the whole machine is prolonged.

The invention discloses a rapid grounding switch, which solves the problems in the prior art that the breaking speed between grounding fractures of a rapid grounding switch is slow, an effect of rapidly breaking induced current is difficult to realize, and the ace burning is uneasy to put out, SF6 gas with a good insulating property must be taken as insulating gas in the prior art for achieving the purpose of rapidly breaking induced currents, thereby causing environmental pollution. The rapid grounding switch disclosed by the invention is characterized in that a moving conductor is arranged in a cavity of a grounding conductor, a conductive tube is installed in the cavity of an insulating conductor, a breaking spring and a conducting rod are arranged in the cavity of the moving conductor, and a sliding shaft arranged on the moving conductor can slide in a U-shaped groove arranged at the front end of a driving arm. The rapid grounding switch disclosed by the invention has the advantages that because the breaking spring is taken as a dynamic force pf the rapid breaking of the grounding switch, and through the rapid breaking of the conducting rod and the generation of compressed air blowing, an effect of instant arc extinguishing between the grounding fractures is achieved, so that the rapid breaking of the grounding switch is realized, therefore, clean dry air or nitrogen gas can be adopted as insulating gas, therefore equipment becomes more environmentally-friendly.

The invention relates to a button type high-voltage remote control switch for a distribution box. The technical scheme is as follows: the upper end of an opening and closing knife switch is matched with a circuit breaking and closing movable knife edge; the inner side of the opening and closing knife switch is provided with a circuit breaking spring for pushing the opening and closing knife switchaway from the circuit breaking and closing movable knife edge to realize circuit breaking, and the outer side of the upper end of the opening and closing knife switch is provided with a circuit closing actuator for pushing the opening and closing knife switch to the circuit breaking and closing movable knife edge to realize circuit conducting; the upper end of the opening and closing knife switchis matched and locked with a circuit closing pin, the circuit closing pin is moved upwards by the pressing and pushing of a circuit breaking actuator, and the opening and closing knife switch is enabled to be opened to realize circuit breaking; and the outer side of the circuit breaking actuator is provided with a circuit breaking button installer, and the outer side of the circuit closing actuator is provided with a circuit conducting button installer. The beneficial effects are that the external remote control structure can be simplified through designing the button type structure, the diversity can be realized, the structure is simple, the occupied area is small, the safety factor is greatly improved, and the fault rate is significantly reduced.

The invention discloses a monostable permanent magnet mechanism provided with combined breaking springs and used for a high-voltage circuit breaker. The mechanism comprises a non-magnetic casing (2), a permanent magnet retaining mechanism (3), an electromagnetic driving mechanism (4), a combined breaking spring system (5), a non-magnetic material cushion block (10) and a guide bar (1), wherein the permanent magnet retaining mechanism (3), the electromagnetic driving mechanism (4), the combined breaking spring system (5) and the non-magnetic material cushion block (10) are arranged in the non-magnetic casing (2); the guide bar (1) penetrates the non-magnetic casing (2) and is in sliding connection with the non-magnetic casing (2); the permanent magnet retaining mechanism (3) and the electromagnetic driving mechanism (4) are isolated by the non-magnetic material cushion block (10); the combined breaking spring system (5) is arranged in the permanent magnet retaining mechanism (3) and the electromagnetic driving mechanism (4) along the guide bar (1). By means of the breaking spring system combined by a whole-course breaking spring and an interval breaking spring, the counter force on the closing front half section is reduced, and accordingly, the closing current peak value is decreased, the closing time is shortened, and energy consumed by closing is reduced.

The invention discloses an integrated intelligent permanent magnet circuit breaker. The integrated intelligent permanent magnet circuit breaker is characterized in that a capacitor 8, a permanent magnet driver 7, a permanent magnet mechanism 6 and a surge controller 3 are arranged in a case 1, namely, a control terminal and the permanent magnet circuit breaker are designed into one case; a short shaft 13 is arranged at one end of the permanent magnet mechanism 6 and is connected with a long shaft 5; long pins 4 are arranged at two sides of the long shaft 5 respectively; one end of each breaking spring 2 is fixed on the corresponding long pin 4 and the other end of each breaking spring 2 is connected with the case 1; the surge controller 3 is located below the breaking springs 2; the tensile force, acting on the long pins 4, of the breaking springs 2 is opposite to the closing retention force of the permanent magnet mechanism 6; a breaking-closing shaft 11 is arranged on a side plate 9 of the case; travel switches 10 are symmetrically arranged at two sides of one end, in the case 1, of the breaking-closing shaft 11; and a breaking-closing handle 12 is arranged outside the case 1. According to the integrated intelligent permanent magnet circuit breaker, a control terminal box body and an installation material are saved, installation and construction are convenient, a connection cable is omitted, the hidden danger caused by cable ageing is reduced and the security performance is improved.

The invention relates to a breaking spring mounting support and a breaker employing the same. The breaking spring mounting support comprises a guide part and a spring seat, wherein the axis of the guide part extends along the up-and-down direction; the guide part is in a split structure and comprises a pull rod and a guide rod; the upper end of the pull rod is used for being connected with a transmission crank arm; the lower end of the guide rod is used for being arranged on a support plate in a guiding manner; the spring seat is arranged on the guide rod; the spring seat and / or the guide rod are / is in transmission connection with the pull rod via threads; and reset force of a breaking spring is simultaneously applied to the spring seat and the guide rod in the adjusting process. The guide rod is arranged on the support plate in the guiding manner; and tension of the guide rod is applied to the spring seat, but not like the prior art that the reset force of the breaking spring is only applied to the spring seat, so that the problem of damage to inner threads of the spring seat in the prior art due to fact that the spring seat easily deflects and is unbalanced under the reset force of the breaking spring in the adjusting process is solved.