CN112133593A - Automatic energy releasing structure for circuit breaker - Google Patents

Abstract

The invention relates to an automatic energy release structure used on a circuit breaker, comprising a closing energy release structure and an opening energy release structure; the closing energy release structure is located at one end of a closing electromagnet of the circuit breaker, and the opening energy release structure is located at one end of a closing electromagnet of the circuit breaker. One end of the opening electromagnet of the circuit breaker. The closing energy release structure is connected together by the closing turn plate and the closing push plate, and the opening energy release structure is connected together by the opening turn plate and the opening push plate. After the vacuum circuit breaker is placed in the switch cabinet, when the chassis is shaken to move forward, the circuit breaker is in a state of energy storage, and will automatically release energy through closing and opening to improve safety.

Description

Automatic energy release structure for circuit breakers

technical field

The invention relates to an automatic energy release structure, in particular to a circuit breaker used for a circuit breaker that automatically releases energy through closing and opening when a vehicle is shaken to move forward and the circuit breaker is in an energy storage state to improve safety. The automatic energy release structure on the .

Background technique

At present, the reliability of power supply is getting higher and higher. If the circuit breaker refuses to trip, serious accidents such as destabilizing the power grid and burning out the running equipment will occur.

SUMMARY OF THE INVENTION

In view of the above-mentioned problems, the main purpose of the present invention is to provide a circuit breaker that automatically releases energy through closing and opening when the chassis is shaken to move forward, and the circuit breaker is in an energy storage state to improve safety. The automatic energy release structure.

The present invention solves the above technical problems through the following technical solutions: an automatic energy release structure for circuit breakers; the automatic energy release structure for circuit breakers includes: closing energy release structure, opening Energy release structure; the closing energy release structure is located at one end of the closing electromagnet of the circuit breaker, and the opening energy release structure is located at one end of the opening electromagnet of the circuit breaker.

In a specific embodiment of the present invention, the closing energy release structure is connected together by the closing turn plate and the closing push plate, and the opening energy release structure is connected together by the opening turn plate and the opening push plate.

In a specific embodiment of the present invention, the closing turning plate and the opening turning plate both include: a triangular plate and a threaded rod and a sliding rod mounted on the triangular plate.

In a specific embodiment of the present invention, a chute is provided on the side plate of the circuit breaker, and the sliding bars on the closing turn plate and the opening turn plate slide respectively in the chute on the side plates on both sides.

In a specific embodiment of the present invention: the closing energy release structure and the opening energy release structure both include: a support frame, a pressure rod, a push rod, a blocking plate, a spring, a positioning plate, a triangular connection plate, and a wafer;

The support frame is a "ji"-shaped frame, and the side of the "ji"-shaped frame is provided with a square hole through which the push rod passes; three round holes are opened on the triangular connecting plate, and the first pin shaft and the second shaft are respectively installed. Pins and lock nuts;

There is a square hole in the middle of the baffle, the baffle is sleeved on the push rod, and the spring is located between the baffle and the support frame;

The support frame is provided with three waist holes and one screw hole, and the triangular connection plate passes through the locking nut;

The first pin shaft passes through the push rod hole of the push rod, one of the round holes of the triangular connection plate, and one of the waist holes of the support frame to install the push rod, the triangular connection plate and the support frame together; the screw holes of the support frame are provided with There are connecting pieces, there are steps on the connecting pieces, and the triangular plate can be rotated on the connecting pieces.

In a specific embodiment of the present invention: the support frame is fixed on the top shield of the circuit breaker.

In the specific embodiment of the present invention: the pressing rod and the push rod are respectively connected with the triangular link pulley, and after passing through the first pin shaft and the second pin shaft, the first pin shaft and the second pin shaft are installed with anti-fall off cotter pin.

In a specific embodiment of the present invention, a blocking piece and a spring are pierced on the push rod, and a cotter pin to prevent the blocking piece and the spring from slipping is installed on the push rod.

In a specific embodiment of the present invention: the end of the push rod is provided with a circular piece, and after passing through the pin shaft, a slip-proof cotter pin is installed on the pin shaft.

The positive improvement effect of the present invention is that the automatic energy release structure for the circuit breaker provided by the present invention has the following advantages: after the vacuum circuit breaker is placed in the switch cabinet, the circuit breaker is in In the state of energy storage, it will automatically release energy by closing and opening to improve safety.

Description of drawings

FIG. 1 is a schematic structural diagram of the installation position of the energy release structure provided by the present invention on the circuit breaker.

FIG. 2 is a schematic view of the structure of the side plate part of the circuit breaker in FIG. 1 (the side plate on the side of the closing energy release structure is installed).

FIG. 3 is a schematic view of the structure of the side plate part of the circuit breaker in FIG. 1 (the side plate on the side of the opening energy release structure is installed).

Figure 4-1 is a schematic diagram of the structure of the transfer plate in Figure 2 .

Fig. 4-2 is a front view of Fig. 4-1.

Figure 5-1 is a schematic diagram of the structure of the transfer plate in Figure 3 .

Fig. 5-2 is a front view of Fig. 5-1.

Fig. 6 is a schematic diagram showing the installation position of the rotating plate on the side plate of the circuit breaker.

FIG. 7 is a schematic view of the structure of FIG. 6 with a rotating plate added.

Figure 8-1 is a schematic front view of the closing energy release structure.

Figure 8-2 is a schematic diagram of the back of the closing energy release structure.

Figure 9-1 is a schematic front view of the energy release structure of the opening gate.

Figure 9-2 is a schematic diagram of the backside of the energy release structure of the opening gate.

Figure 10 is a schematic diagram of the structure of the pressure rod.

Figure 11 is a schematic diagram of the structure of the push rod.

FIG. 12 is a schematic diagram of the structure of the positioning plate.

FIG. 13 is a schematic structural diagram of a wafer.

FIG. 14 is a schematic diagram of the structure of the baffle.

FIG. 15 is a schematic structural diagram of a triangular connecting plate.

Figure 16-1 is a schematic diagram of the structure of the support frame.

Fig. 16-2 is a front view of Fig. 16-1.

The following is the name corresponding to the label in the present invention:

Closing energy release structure 1, opening energy releasing structure 2, closing turn plate 3, closing push plate 4, opening turn plate 5, opening push plate 6, side plate 7, threaded rod 8, sliding rod 9;

Chute 701;

Support frame 101, pressing rod 102, push rod 103, blocking plate 104, spring 105, positioning plate 106, triangular connecting plate 107, disc 108, first pin 109, second pin 110, locking nut 111, square Holes 112 , three waist holes 113 , screw holes 114 , block square holes 115 , connecting pieces 116 , and steps 117 .

Detailed ways

The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to illustrate the technical solutions of the present invention in detail.

FIG. 1 is a schematic structural diagram of the installation position of the energy release structure provided by the present invention on the circuit breaker. Fig. 2 is a schematic view of the structure of the side plate part of the circuit breaker of Fig. 1 (the side plate on the side of the closing energy release structure is installed). FIG. 3 is a schematic view of the structure of the side plate part of the circuit breaker in FIG. 1 (the side plate on the side of the opening energy release structure is installed). As shown in Figure 1-3, the automatic energy release structure for circuit breakers provided by the present invention includes: closing energy release structure 1, opening energy release structure 2; One end of the gate electromagnet, and the opening energy release structure 2 is located at one end of the opening electromagnet of the circuit breaker. The closing energy release structure 1 is connected together by the closing turn plate 3 and the closing push plate 4 , and the opening energy release structure 2 is connected together by the opening turn plate 5 and the opening push plate 6 .

Figure 4-1 is a schematic diagram of the structure of the transfer plate in Figure 2 . Fig. 4-2 is a front view of Fig. 4-1. Figure 5-1 is a schematic diagram of the structure of the transfer plate in Figure 3 . Fig. 5-2 is a front view of Fig. 5-1. As shown in the above figure: the closing turn plate 3 and the opening turn plate 5 both include: a triangular plate and a threaded rod 8 and a sliding rod 9 mounted on the triangular plate.

Fig. 6 is a schematic diagram showing the installation position of the rotating plate on the side plate of the circuit breaker. FIG. 7 is a schematic view of the structure of FIG. 6 with a rotating plate added. As shown in Figures 6-7, the side plate 7 of the circuit breaker is provided with a chute 701, and the sliding bars 9 on the closing rotary plate 3 and the opening rotary plate 5 are respectively in the sliding grooves 701 of the side plates 7 on both sides. slide.

Figure 8-1 is the front schematic view of the closing energy release structure, Figure 8-2 is the back schematic view of the closing energy release structure, Figure 9-1 is the front schematic diagram of the opening energy release structure, and Figure 9-2 is the opening energy release structure Back view of the energy structure. As shown in the above figure: the closing energy release structure 1 and the opening energy release structure 2 both include: a support frame 101, a pressure rod 102, a push rod 103, a blocking piece 104 (see FIG. 14), a spring 105, and a positioning plate 106 ( See Fig. 12), triangular connecting plate 107, wafer 108 (see Fig. 13); the support frame 101 is a "ji"-shaped frame, and the side of the "ji"-shaped frame is provided with a square through which the push rod 103 passes. Hole 112; three circular holes are opened on the triangular connecting plate 107, and the first pin shaft 109, the second pin shaft 110 and the locking nut 111 are respectively installed.

There is a square hole 115 in the middle of the blocking piece 104 , the blocking piece 104 is sleeved on the push rod 103 , and the spring 105 is located between the blocking piece 104 and the support frame 101 .

Figure 16-1 is a schematic diagram of the structure of the support frame. Fig. 16-2 is a front view of Fig. 16-1. As shown in Figures 16-1 and 16-2: the support frame 101 is provided with three waist holes 113 and one screw hole 114, and the triangular connecting plate 107 passes through the locking nut 111.

The first pin shaft 109 passes through the push rod hole of the push rod 103, one of the circular holes of the triangular connection plate 107, and one of the waist holes of the support frame 101 to connect the push rod 103, the triangular connection plate 107 (see FIG. 15 ) and the support frame 101 are installed together; the screw hole 114 of the support frame 101 is provided with a connecting piece 116, the connecting piece 116 is provided with a step 117, and the triangular plate can be rotated on the connecting piece.

The support frame 101 is fixed on the top shield of the circuit breaker. The pressing rod 102 (see FIG. 10 ) and the push rod 103 (see FIG. 11 ) are respectively connected with the triangular link puller 107, and after passing through the first pin shaft 109 and the second pin shaft 110, the first pin shaft 109 and the second pin shaft The shaft 110 is provided with a cotter pin for preventing slipping.

The push rod 103 is provided with a blocking plate and a spring, and a cotter pin is installed on the push rod to prevent the blocking plate and the spring from slipping off. There is a disc at the end of the push rod. After passing through the pin, a cotter pin is installed on the pin.

The following are some supplementary descriptions of the present invention:

Energy storage: The energy required for closing the circuit breaker is provided by the closing spring on the mechanism. The charging can be done by the charging motor or manually using the charging handle.

Electric energy storage: When the energy storage motor works, the pinion on the output shaft of the motor connected to the energy storage motor rotates and drives the large gear to rotate, and the closing cam on the main shaft of the mechanism rotates synchronously with the large gear. At this time, the closing spring is stretched to store energy, and when it reaches the energy storage position, the energy storage holding block holds up the roller on the closing cam to maintain the energy storage position.

Manual energy storage: When manual energy storage is performed, rotate the energy storage handle to carry out the above energy storage process.

Closing: When the circuit breaker receives the closing command (hand push the closing button - push the closing push rod to move backwards, or start the closing electromagnet to close electrically - start the closing electromagnet to close electrically, the closing electromagnetic The inner iron core of the iron protrudes backward), the closing push plate is forced backward, causing the energy storage holding block to separate from the roller on the closing cam, and the closing cam rotates clockwise under the action of the closing spring, pushing the main shaft to reverse Clockwise rotation, the main shaft moves the connecting plate downward through the crank arm, and drives the entire transmission system such as the lever to rotate counterclockwise. The insulating rod installed under the solid-sealed pole is moved upward in a straight line to drive the moving contact to close with the static contact at an appropriate speed and compress the internal contact spring. The holding part on the main shaft will withstand the holding plate, and the holding plate rotates clockwise against the tripping shaft to keep the closing, thus completing the closing process.

Opening: When the switch receives the opening command (hand push the opening button - push the opening push rod to move backward, or start the opening electromagnet to open the brake electrically - start the opening electromagnet to open the brake electrically, the opening electromagnet The inner iron core protrudes backward), both the opening push plate and the auxiliary opening push plate will be forced backward, causing the tripping shaft to rotate clockwise, and the holding plate slides out from the gap of the tripping shaft. Under the action of the contact spring, the force generated on the holding part on the main shaft will force the holding plate to rotate, so that the holding plate is separated from the holding part on the main shaft, and the entire transmission system such as the main shaft and the lever moves clockwise. The moving contact is separated from the static contact at an appropriate speed. At the final position close to the opening, the oil buffer starts to act to absorb the remaining kinetic energy of the opening, thereby completing the entire opening process.

Description: Both the closing push plate and the opening push plate are equipped with torsion springs, which are connected with the side plate of the mechanism to ensure that the closing push plate and the opening push plate can be reset in time.

A specific implementation example is given below with reference to the accompanying drawings. The top shield of the circuit breaker is provided with studs, and the top of the frame is provided with two through holes, so that the pressure rod can pass through. There are chutes and threaded holes on both side plates of the mechanism.

The energy releasing structure includes: closing energy releasing structure 1, opening energy releasing structure 2, closing energy releasing structure 1 is at the closing end, and opening energy releasing structure 2 is at the opening end of the circuit breaker.

The support frame is provided with a connecting piece, and the back of the step of the connecting piece is provided with threads; the triangular link wrench is installed on the connecting piece of the support frame, and is locked and prevented from falling off by a locking nut. Because there are steps on the connecting piece, the triangle plate can be rotated on the connecting piece, and the pressure rod and the push rod are respectively connected with the triangle connecting plate.

There are baffles and springs on the push rod, and a split pin is installed on the push rod to prevent the baffles and springs from slipping; the push rod is inserted into the positioning plate; the end of the push rod is provided with a circular piece, after passing through the pin shaft, an opening is installed on the pin shaft Pins fall off.

Both the bracket frame and the positioning plate are mounted on the top shield of the circuit breaker (the top shield has studs).

The closing turning plate 3 is installed on the closing side of the mechanism, and the opening turning plate 5 is installed on the opening side of the mechanism, and is connected with the side plate of the mechanism through a positioning pin. The positioning pin is screwed into the threaded hole in the side plate of the mechanism. The long rods of the closing turn plate 3 and the opening turn plate 5 penetrate into the chute of the side plate of the mechanism. The long rods are respectively in front of the closing push plate and the opening push plate.

The pressure rods of the closing energy release structure 1 are respectively connected with the closing turn plate 3, and the pressure rods of the opening energy release structure 2 are respectively connected with the opening turn plate 5, and are prevented from falling off by using locking nuts. Install arc-shaped nylon blocks on both sides of the circuit breaker room of the switchgear. When the circuit breaker is pushed into the switch cabinet; the wheels of the chassis wheel enter the guide rail of the switch cabinet, and the locking piece of the chassis car is embedded in the lock on the guide rail.

When the chassis car rocker is shaken, the chassis car will move forward with the circuit breaker. At this time, the push rods of the closing energy release structure 1 and the opening energy release structure 2 will be squeezed by the arc-shaped nylon blocks on both sides of the switch cabinet, so the push rods will move inward, driving the pressure rods to move down, If the circuit breaker is in the state of energy storage, the long rod of the closing rotary plate 3 will push the closing push plate to move backward to close the circuit breaker, and the long rod of the opening rotary plate 5 will push the opening The push plate moves backward to open the circuit breaker, so as to release energy.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have Various changes and improvements fall within the scope of the claimed invention, which is defined by the appended claims and their equivalents.

Claims (9)

1. An automatic energy release structure for circuit breakers; it is characterized in that: the automatic energy release structure for circuit breakers comprises: closing energy release structure, opening energy release structure; closing energy release structure It is located at one end of the closing electromagnet of the circuit breaker, and the opening energy releasing structure is located at one end of the opening electromagnet of the circuit breaker. 2. The automatic energy release structure for circuit breakers according to claim 1, characterized in that, the closing energy release structure is connected together by the closing turn plate and the closing push plate, and the opening energy release structure is connected by the opening The turning plate and the opening push plate are connected together. 3. The automatic energy release structure for circuit breakers according to claim 1, wherein the closing turning plate and the opening turning plate both comprise: a triangular plate and a threaded rod mounted on the triangular plate and Slider. 4. The automatic energy release structure for circuit breakers according to claim 3, characterized in that, the side plates of the circuit breaker are provided with chute, and the sliding bars on the closing turn plate and the opening turn plate are respectively located on the side plate. Slide inside the chute on the side panels on both sides. 5. The automatic energy release structure for circuit breakers according to claim 1, wherein the closing energy release structure and the opening energy release structure both comprise: a support frame, a pressure rod, a push rod, a blocking plate, Spring, positioning plate, triangle connecting plate, wafer; The support frame is a "ji"-shaped frame, and the side of the "ji"-shaped frame is provided with a square hole through which the push rod passes; three round holes are opened on the triangular connecting plate, and the first pin shaft and the second shaft are respectively installed. Pins and lock nuts; There is a square hole in the middle of the baffle, the baffle is sleeved on the push rod, and the spring is located between the baffle and the support frame; The support frame is provided with three waist holes and one screw hole, and the triangular connection plate passes through the locking nut; The first pin shaft passes through the push rod hole of the push rod, one of the round holes of the triangular connection plate, and one of the waist holes of the support frame to install the push rod, the triangular connection plate and the support frame together; the screw holes of the support frame are provided with There are connecting pieces, there are steps on the connecting pieces, and the triangular plate can be rotated on the connecting pieces. 6 . The automatic energy release structure for circuit breakers according to claim 5 , wherein the support frame is fixed on the top shield of the circuit breaker. 7 . 7. The automatic energy release structure for circuit breakers according to claim 5, wherein the pressing rod and the push rod are respectively connected with the triangular connecting lever, and after passing through the first pin and the second pin, The first pin shaft and the second pin shaft are provided with cotter pins for preventing slipping. 8 . The automatic energy release structure for circuit breakers according to claim 1 , wherein a blocking plate and a spring are pierced through the push rod, and a cotter pin to prevent the blocking plate and the spring from slipping is installed on the push rod. 9 . 9 . The automatic energy release structure for circuit breakers according to claim 1 , wherein the end of the push rod is provided with a disc, and after passing through the pin shaft, a cotter pin is installed on the pin shaft to prevent slipping. 10 .

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