CN105810516B - A kind of circuit-breaker switching on-off operating device - Google Patents

Abstract

A circuit breaker opening and closing operation device, which includes a circuit breaker operating mechanism (1), a shunt release (2) and a closing electromagnet (3), a shunt release (2) and a closing electromagnet (3 ) is fixedly installed in the operating mechanism (1) of the circuit breaker, and is characterized in that: the control end of the opening moving iron core (201) of the shunt release (2) protrudes from the end face of the opening bracket (202) of itself, The control end of the closing moving iron core (301) of the closing electromagnet (3) protrudes from the end face of its own closing bracket (302), and the opening moving iron core (201) and the closing moving iron core (301) are under the action of external force. The lower part can do linear motion so as to drive the operating mechanism (1) to complete opening or closing. The opening and closing operating device of the circuit breaker simplifies the structure of the opening and closing operating mechanism of the circuit breaker, and the structural layout of the entire circuit breaker opening and closing operating device is more reasonable, simplifies the number of movement transmissions, and improves the reliability and stability of the opening and closing operation Unique, modular design for easy installation and maintenance.

Description

A circuit breaker opening and closing operation device

technical field

The invention belongs to the technical field of low-voltage electrical appliances, and in particular relates to an opening and closing operation device for a circuit breaker, which can improve the reliability of opening and closing the circuit breaker.

Background technique

Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. Low-voltage circuit breaker, also known as automatic switch, commonly known as "air switch", also refers to low-voltage circuit breaker. It is an electrical appliance that not only has the function of manual switch, but also can automatically protect against voltage loss, undervoltage, overload, and short circuit. It can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, etc., and can automatically cut off the circuit when they have severe overload, short circuit and undervoltage faults. Its function is equivalent to a fuse switch and The combination of overheating and underheating relays, etc., and generally does not need to change parts after breaking the fault current, has been widely used.

As shown in accompanying drawing 1 and 2, the button of universal circuit breaker opening and closing operating device on the market is placed in the mask, and the button can move back and forth in the chute of the mask, and the button is reset by a spring. The operating mechanism of the circuit breaker is equipped with a guiding movement lever, which is fixed on the operating mechanism and can move back and forth within a certain range. One end of the guiding movement lever touches the button on the mask, and the other end passes through the structure. The components are linked with the opening and closing shaft of the operating mechanism; when the opening and closing operation is required, the button is pressed, and the operating mechanism completes the corresponding opening and closing action through the joint action of the guiding movement lever and related structural components. The shunt release A and closing electromagnet B of this traditional circuit breaker opening and closing operation device pass through the mechanism cover and are fixed upright above the circuit breaker operating mechanism. The shunt release and the iron core of the closing electromagnet Corresponding to the cantilever positions of the opening semi-axis and closing semi-axis of the circuit breaker operating mechanism respectively, the corresponding electrical signal is passed to the shunt release or the closing electromagnet, and the iron core touches the semi-axis cantilever to realize the opening and closing operation of the operating mechanism . However, the existing universal circuit breaker opening and closing operating device has a large number of parts. The button start and the iron core driving the semi-axis cantilever are two independent movements, resulting in a large volume of the traditional circuit breaker opening and closing operating device. Stability is unreliable.

Contents of the invention

The purpose of the present invention is to provide a circuit breaker opening and closing operating device to simplify the movement transmission process of the circuit breaker opening and closing operating device in view of the above-mentioned existing circuit breaker opening and closing operating device with many parts and complicated motion transmission. , optimize the structure of the opening and closing operation device, and improve the reliability of the opening and closing operation device.

Technical solutions

According to the above technical purpose, a circuit breaker opening and closing operation device is designed, which includes a circuit breaker operating mechanism, a shunt release and a closing electromagnet, and the shunt release and closing electromagnet are fixed in the circuit breaker operating mechanism , characterized in that: the control end of the opening moving iron core of the shunt release extends out of its own opening bracket end face, and the closing moving iron core control end of the closing electromagnet extends out of its own closing bracket end face , The opening moving iron core and the closing moving iron core can make a linear motion under the action of external force so as to drive the operating mechanism to complete the opening or closing.

Further, the external force on the opening moving iron core and the closing moving iron core is manual or electromagnetic force.

Further, one end of the opening moving iron core protruding from its own opening bracket is connected with an opening button, and one end of the closing moving iron core extending out of its own closing bracket is connected with a closing button, and the end of the opening moving iron core is connected with a closing button. The movement direction is the same as that of the opening button, and the movement direction of the closing moving iron core is the same as that of the closing button.

Further, the opening button is installed on the opening moving iron core or the circuit breaker operating mechanism or the circuit breaker mask, and the closing button is installed on the closing moving iron core or the circuit breaker operating mechanism or the circuit breaker mask.

Further, the tail end of the sub-brake moving iron core is connected with a rotating swing lever, which is mounted on a rotating shaft and can rotate around the rotating shaft, and the two ends of the rotating shaft are installed on the side plate of the circuit breaker operating mechanism. The lever is provided with a transmission step, and the transmission step is in contact with the boss protruding from the opening half shaft of the circuit breaker. During the rotation of the swinging lever, the transmission step can push the opening half shaft to rotate to open the circuit breaker operating mechanism.

Further, one end of the closing moving iron core protruding from the end face of the closing bracket is connected with a rotating closing lever, the rotating closing lever is mounted on the closing lever shaft and can rotate around the closing lever shaft, and the two ends of the closing lever shaft are Installed on the side plate of the operating mechanism, the left end surface of the rotating closing lever is pressed against the upper surface of the right end of the aircraft frame. During the rotation of the rotating closing lever, the right end of the aircraft frame can be moved downward, and the right end of the aircraft frame can be touched during the downward movement. The closing boss on the closing half shaft makes the closing half shaft rotate to drive the circuit breaker operating mechanism to close.

Further, the shunt release and the closing electromagnet are installed horizontally in the mechanism cover, and the mechanism cover is provided with a limit position and a hook, and the shunt release and the closing electromagnet correspond to the positions of the hook. A card slot is provided, and the shunt release and the closing electromagnet are fixedly installed in the mechanism cover plate through the cooperation of the card slot and the hook, and the mechanism cover plate is horizontally card-mounted in the side plate card slot of the side plate of the circuit breaker operating mechanism Inside.

Further, the aircraft frame is installed on the aircraft frame installation shaft, reset by a spring, and the aircraft frame installation shaft is fixedly installed on the side plate of the circuit breaker operating mechanism.

Further, the shunt release and the closing electromagnet are locked on the mechanism cover by screws.

Further, the outer side of the mechanism cover is also provided with a disconnection position lock installation part for installation of the disconnection position lock, the disconnection position lock is installed in the disconnection position lock installation part, and the disconnection position lock installation part and the mechanism cover plate One structure.

Beneficial effect

The opening and closing operation device of the circuit breaker provided by the present invention can be opened and closed manually, and can also be driven by electromagnetic force to drive the opening and closing by providing electric signals, and the manual and electromagnetic force are completed on a set of mechanisms, which simplifies the opening and closing of the circuit breaker. The structure of the closing operation mechanism, the structure and layout of the opening and closing operation device of the circuit breaker is more reasonable, the transmission times of movement are simplified, the reliability and stability of opening and closing are improved, and the modular design is convenient for installation and maintenance.

Description of drawings

Accompanying drawing 1 is the structure diagram of existing circuit breaker operating mechanism.

Accompanying drawing 2 is the schematic diagram of the installation structure of the opening and closing operating mechanism of the existing circuit breaker.

Figure 3 is a schematic diagram of the installation structure of the shunt release and the closing electromagnet in the first embodiment of the present invention.

Accompanying drawing 4 is the structural diagram of the shunt release in the first embodiment of the present invention.

Accompanying drawing 5 is the structural diagram of closing electromagnet in the first embodiment of the present invention.

Accompanying drawing 6 is a schematic diagram of the button installation structure in the first embodiment of the present invention.

Accompanying drawing 7 is the three-dimensional structural diagram of the installation of the rotating and swinging lever in the first embodiment of the present invention.

Figure 8 is a schematic diagram of the front view direction of the installation structure of the rotating and swinging lever in the first embodiment of the present invention.

Accompanying drawing 9 is a schematic diagram of the structure of the opening half shaft in the first embodiment of the present invention.

Accompanying drawing 10 is the structural diagram of the rotary swing lever in the first embodiment of the present invention.

Accompanying drawing 11 is the three-dimensional structural diagram of the installation of the rotary closing lever in the first embodiment of the present invention.

Figure 12 is a schematic diagram of the front view direction of the installation structure of the rotating closing lever in the first embodiment of the present invention.

Accompanying drawing 13 is the structural schematic diagram of the rotary closing lever in the first embodiment of the present invention.

Accompanying drawing 14 is the structural diagram of aircraft frame in the first embodiment of the present invention.

Accompanying drawing 15 is the three-dimensional structural diagram of the installation of the mechanism cover plate in the first embodiment of the present invention.

Accompanying drawing 16 is the three-dimensional structural diagram of the mechanism cover plate in the first embodiment of the present invention.

Accompanying drawing 17 is the schematic diagram of the mechanism cover plate product in the first embodiment of the present invention.

Accompanying drawing 18 is the three-dimensional structural diagram of the mechanism cover plate in the second embodiment of the present invention.

Accompanying drawing 19 is the schematic diagram of the mechanism cover plate product in the second embodiment of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Example 1

As shown in Figures 3 to 5, a circuit breaker opening and closing operation device includes a circuit breaker operating mechanism 1, a shunt release 2 and a closing electromagnet 3, and the shunt release 2 and the closing electromagnet 3 are fixed on the In the circuit breaker operating mechanism 1, it is characterized in that: the control end of the opening moving iron core 201 of the shunt release 2 protrudes from the end face of its own opening bracket 202, and the closing moving iron core of the closing electromagnet 3 The control end of 301 protrudes from the end face of the closing bracket 302, and the opening moving iron core 201 and the closing moving iron core 301 can move linearly under the action of external force to drive the operating mechanism 1 to complete opening or closing.

The external force on the opening moving iron core 201 and the closing moving iron core 301 is manual or electromagnetic force.

As shown in Figure 6, one end of the opening moving iron core 201 protruding from its own opening bracket 202 is connected with an opening button 203, and one end of the closing moving iron core 301 extending out of its own closing bracket 302 is connected with a The closing button 303 and the opening moving iron core 201 move in the same direction as the opening button 203 , and the closing moving iron core 301 moves in the same direction as the closing button 303 .

The opening button 203 is installed on the circuit breaker mask 102 , and the closing button 303 is installed on the circuit breaker mask 102 .

As shown in Figures 7 to 10, the tail end of the split brake moving iron core 201 is connected with a rotary swing lever 4, which is mounted on a rotating shaft 5 and can rotate around the rotating shaft 5, and the rotating shaft 5 is installed on the circuit breaker. On the side plate 101 of the operating mechanism of the circuit breaker, the rotating swing lever 4 is provided with a transmission step 401, the transmission step 401 contacts with the boss 601 protruding from the opening half shaft 6 of the circuit breaker, and the rotating swing lever 4 rotates the transmission step 401 It can push the opening semi-shaft 6 to rotate to open the circuit breaker operating mechanism 1 .

As shown in accompanying drawings 11 to 14, one end of the closing moving iron core 301 protruding from the end face of its own closing bracket 302 is connected with a rotating closing lever 7, and the rotating closing lever 7 is mounted on the closing lever shaft 8 and can rotate The closing lever shaft 8 rotates, and the two ends of the closing lever shaft 8 are installed on the side plate 101 of the operating mechanism. The left end surface 701 of the rotating closing lever 7 is pressed on the upper surface 901 of the right end of the aircraft frame 9, and the rotating closing lever 7 rotates. The right end of the aircraft frame 9 can be moved downward, and the right end of the aircraft frame 9 can touch the closing boss 10a on the closing half shaft 10 during the downward movement, so that the closing half shaft 10 can rotate to drive the circuit breaker operating mechanism 1 to close . The aircraft frame 9 is installed on the aircraft frame installation shaft 15, and the aircraft frame installation shaft 15 is fixedly installed on the side plate 101 of the circuit breaker operating mechanism.

As shown in Figures 15-17, the shunt release 2 and the closing electromagnet 3 are installed horizontally side by side in the mechanism cover 11, and the mechanism cover 11 is provided with a limit position and a hook, and the shunt release 2 and the closing electromagnet 3 are provided with a slot corresponding to the hook on the mechanism cover, and the shunt release 2 and the closing electromagnet 3 are fixedly installed in the mechanism cover 11 through the cooperation of the slot and the hook , The mechanism cover plate 11 is horizontally clamped in the side plate slot of the side plate 101 of the circuit breaker operating mechanism. The outer side of the mechanism cover plate 11 is also provided with a disconnected position lock installation part 13 for the disconnected position lock 12 installation, the disconnected position lock 12 is contained in the disconnected position lock installation part 13, and the disconnected position lock installation part 13 and mechanism cover plate 11 integral structure.

The working process of the present invention is to manually or press the power-on signal of the opening button 203 to drive the opening moving iron core 201 of the shunt release 2 to the left, and push the end face of the rotating swing lever 4 to make it rotate counterclockwise. The transmission step 401 pushes the boss 601 to drive the circuit breaker opening half shaft 6 to rotate to open the circuit breaker operating mechanism 1; when closing, manually press the closing button 303 or the power signal to close the closing moving iron core 301 of the electromagnet 3 Move to the left and pull the end face of the rotary closing lever 8 to make it rotate counterclockwise, and drive the right end of the aircraft frame 9 to move downward to touch the closing boss 10a on the closing half shaft 10, so that the closing half shaft 10 rotates to drive the circuit breaker The operating mechanism 1 is closed.

Example 2

As shown in Figures 18 and 19, the shunt release 2 and the closing electromagnet 3 can also be directly locked on the mechanism cover 11 by screws.

Example 3

The opening button 203 can also be installed on the opening moving iron core 201 , and the closing button 303 is installed on the closing moving iron core 301 .

Example 4

The opening button 203 can also be installed on the circuit breaker operating mechanism 1 , and the closing button 303 can be installed on the circuit breaker operating mechanism 1 .

The opening and closing operation device of the circuit breaker provided by the present invention can be opened and closed manually, and can also be driven by electromagnetic force to drive the opening and closing by providing electric signals, and the manual and electromagnetic force are completed on a set of mechanisms, which simplifies the opening and closing of the circuit breaker. The structure of the closing operation mechanism, the structure and layout of the opening and closing operation device of the circuit breaker is more reasonable, the transmission times of movement are simplified, the reliability and stability of opening and closing are improved, and the modular design is convenient for installation and maintenance.

The structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to cooperate with the content disclosed in the specification for the understanding and reading of those familiar with the technology, and are not used to limit the conditions for the implementation of the present invention. Therefore, there is no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of the disclosure of the present invention without affecting the functions and objectives of the present invention. within the scope of the technical content. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable scope of the invention and the change or adjustment of its relative relationship shall also be regarded as the practicable scope of the present invention without any substantial change in the technical content.

Claims (9)

1. A circuit breaker opening and closing operating device, which includes a circuit breaker operating mechanism (1), a shunt release (2) and a closing electromagnet (3), a shunt release (2) and a closing electromagnet (3) Fixedly installed in the circuit breaker operating mechanism (1), characterized in that: the control end of the branching moving iron core (201) of the shunt release (2) extends out of its own branching bracket (202) end face, the closing moving iron core (301) control end of the closing electromagnet (3) protrudes from the closing bracket (302) end face of itself, the opening moving iron core (201) and the closing moving iron core (301) Under the action of external force, it can do linear motion to drive the operating mechanism (1) to complete opening or closing; The tail end of the branching moving iron core (201) is connected with a rotary swing lever (4), and the rotary swing lever (4) is mounted on the rotary shaft (5) and can rotate around the rotary shaft (5), and the rotary shaft (5) Installed on the side plate (101) of the operating mechanism of the circuit breaker, the rotating swing lever (4) is provided with a transmission step (401), and the transmission step (401) is connected with the protrusion protruding from the breaker opening half shaft (6). The platform (601) contacts, and the transmission step (401) during the rotation of the rotating swing lever (4) can push the opening semi-axis (6) to rotate to open the circuit breaker operating mechanism (1). 2. The opening and closing operation device of a circuit breaker according to claim 1, characterized in that: the external force on the opening moving iron core (201) and closing moving iron core (301) is manual or electromagnetic force. 3. A circuit breaker opening and closing operation device according to claim 1, characterized in that: one end of the opening moving iron core (201) protruding from its own opening bracket (202) is connected with an opening button ( 203), the closing moving iron core (301) protrudes from one end of its own closing bracket (302) and is connected with a closing button (303), and the moving direction of the opening moving iron core (201) is the same as that of the opening button (203) ) in the same direction of movement, the direction of movement of the closing moving iron core (301) is the same as that of the closing button (303). 4. A circuit breaker opening and closing operating device according to claim 3, characterized in that: the opening button (203) is mounted on the opening moving iron core (201) or the circuit breaker operating mechanism (1) or On the circuit breaker mask (102), the closing button (303) is mounted on the closing moving iron core (301) or the circuit breaker operating mechanism (1) or the circuit breaker mask (102). 5. A circuit breaker opening and closing operation device according to claim 1, characterized in that: one end of the closing moving iron core (301) protruding from the end face of its own closing bracket (302) is connected with a rotary closing Lever (7), the rotating closing lever (7) is installed on the closing lever shaft (8) and can rotate around the closing lever shaft (8), and the two ends of the closing lever shaft (8) are installed on the operating mechanism side plate (101 ), the left end surface (701) of the rotary closing lever (7) is pressed against the upper surface (901) of the right end of the aircraft frame (9), and the right end of the aircraft frame (9) can be made downward during the rotation of the rotary closing lever (7). During the downward movement, the right end of the aircraft frame (9) can touch the closing boss (10a) on the closing half shaft (10) so that the closing half shaft (10) rotates to drive the circuit breaker operating mechanism (1) close. 6. A circuit breaker opening and closing operation device according to claim 1, characterized in that: the shunt release (2) and the closing electromagnet (3) are installed horizontally on the mechanism cover (11) Inside, the mechanism cover (11) is provided with a limit position and a hook, and the shunt release (2) and the closing electromagnet (3) are provided with a slot corresponding to the hook, and the shunt release The device (2) and the closing electromagnet (3) are fixed in the mechanism cover (11) through the cooperation of the slot and the hook, and the mechanism cover (11) is horizontally clamped on the side plate (101) of the circuit breaker operating mechanism. Inside the slot on the side panel. 7. A circuit breaker opening and closing operation device as claimed in claim 5, characterized in that: the aircraft frame (9) is installed on the aircraft frame mounting shaft (15), and is reset by a spring (14), Airframe mounting shaft (15) is fixedly installed on the circuit breaker operating mechanism side plate (101). 8. A circuit breaker opening and closing operation device according to claim 6, characterized in that: the shunt release (2) and the closing electromagnet (3) are locked on the mechanism cover (11) by screws )superior. 9. A circuit breaker opening and closing operation device according to claim 6, characterized in that: the outer side of the mechanism cover (11) is also provided with a disconnected position lock installation for the disconnected position lock (12). part (13), the disconnected position lock (12) is contained in the disconnected position lock installation part (13), and the disconnected position lock installation part (13) is integrally structured with the mechanism cover plate (11).