CN218676934U - Energy storage spring mechanism of single-module circuit breaker - Google Patents
Energy storage spring mechanism of single-module circuit breaker Download PDFInfo
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- CN218676934U CN218676934U CN202223367392.4U CN202223367392U CN218676934U CN 218676934 U CN218676934 U CN 218676934U CN 202223367392 U CN202223367392 U CN 202223367392U CN 218676934 U CN218676934 U CN 218676934U
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Abstract
The utility model relates to an electron device field specifically provides a single module circuit breaker energy storage spring mechanism, including the control box, urgent hand lever is installed to the control box front end, control box one side is equipped with the power level, and power level bottom is equipped with control button, there is box rear end frame control box rear side through the mounting screw, and box rear end frame opposite side is connected with epoxy insulating spring, the epoxy insulating spring other end is connected in the support shell, and support shell inboard installs arc extinguishing connecting pipe and vacuum interrupter, support shell bottom rotates and installs the energy storage connecting rod, and energy storage connecting rod opposite side connects in the control box, box rear end frame both sides are equipped with frame plate mounting screw and are used for being connected with the wall. The utility model provides a circuit breaker relatively poor to the electric current separation condition, can't accomplish the break circuit in the twinkling of an eye, the explosion chamber current-carrying is great, appears relighting the overvoltage easily and gets the problem.
Description
Technical Field
The utility model relates to an electron device field especially relates to a single module circuit breaker energy storage spring mechanism.
Background
The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time.
The existing circuit breaker has poor current blocking condition and cannot achieve instant circuit breaking.
The applicant has found that the following problems exist in practical use: the current carrying of the arc extinguish chamber of the circuit breaker is large, and the restrike overvoltage is easy to occur.
Therefore, it is necessary to provide a single module circuit breaker energy storage spring mechanism to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem, the above-mentioned defect to prior art is directed against, a single module circuit breaker energy storage spring mechanism is provided, the power distribution box comprises an operation box, urgent hand lever is installed to the control box front end, control box one side is equipped with the power level, and power level bottom is equipped with control button, there is box rear end frame operation box rear side through the mounting screw, and box rear end frame opposite side is connected with epoxy insulating spring, the epoxy insulating spring other end is connected in the support shell, and support shell inboard installs arc extinguishing connecting pipe and vacuum interrupter, support shell bottom rotates and installs the energy storage connecting rod, and energy storage connecting rod opposite side is connected in the control box, box rear end frame both sides are equipped with frame plate mounting screw and are used for being connected with the wall. The utility model provides a circuit breaker relatively poor to the electric current separation condition, can't accomplish the break circuit in the twinkling of an eye, the explosion chamber current-carrying is great, appears relighting the overvoltage easily and gets the problem.
In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a single module circuit breaker energy storage spring mechanism, includes the control box, urgent hand lever is installed to the control box front end, control box one side is equipped with the power level, and is equipped with control button bottom the power level, there is box rear end frame the control box rear side through the mounting screw, and box rear end frame opposite side is connected with epoxy insulating spring, the epoxy insulating spring other end is connected in supporting shell, and supports the shell inboard and install arc extinguishing connecting pipe and vacuum interrupter, supporting shell bottom is rotated and is installed the energy storage connecting rod, and just the connecting rod opposite side is connected in the control box, box rear end frame both sides are equipped with energy storage frame plate mounting screw and are used for being connected with the wall, have the circuit breaker can accomplish in the twinkling of an eye open circuit, and the explosion chamber current-carrying is little, advantages such as the overvoltage can not appear reigniting.
Further, the rotating pin is arranged in the energy storage connecting rod, and auxiliary energy storage of equipment can be achieved.
Further setting, be equipped with the bottom inspection tube between arc extinguishing connecting pipe and the support shell bottom, can realize placing of arc extinguishing connecting pipe.
Further setting, the support shell outside is connected with the wall through being equipped with shell mounting screw, the screw mounting hole has been seted up in the support shell outside, can realize being connected of support shell and wall.
Further setting, the support shell inboard is equipped with the support long slab and inside subtracts heavy groove, can protect and support the arc extinguishing connecting pipe.
Further setting, the epoxy resin insulating spring is connected with the supporting shell and the box body rear end frame through the electric wood screw plate, and the connection of the epoxy resin insulating spring and the supporting shell can be realized.
Further setting, box rear end frame inboard is equipped with the spring mounting folded plate, and fixes through the screw between spring mounting folded plate and the bakelite screw board, can realize fixing of bakelite screw board.
Further, the top of the operation box is provided with a plug and a socket, so that power input can be realized.
Compared with the prior art, the utility model provides a pair of single module circuit breaker energy storage spring mechanism has following beneficial effect:
the utility model provides an energy storage spring mechanism of a single-module circuit breaker, which adopts components such as a vacuum arc extinguish chamber, and the vacuum arc extinguish chamber of the circuit breaker is manufactured by adopting a one-time sealing and exhausting technology; the contact material is made of copper-chromium alloy through arc smelting. The contact adopts advanced design shape and structure, and has extremely high arc resistance and small arc voltage drop. Therefore, on the premise of ensuring the rated on-off short-circuit current, the volume of the arc extinguish chamber can be smaller, and the principle of the circuit interruption in the scheme is that when the contacts in the vacuum arc extinguish chamber are separated, the interrupted current generates metal steam, the current is maintained to the next current zero point through the metal steam channel, and the electric arc is interrupted at the zero-crossing position. The metal steam loses the conductive performance within microseconds, so that the dielectric strength of the contact gap can be rapidly restored, and the vacuum arc-extinguishing chamber with various materials and sizes can be selected according to different breaking capacities, thereby achieving the purposes of small current carrying of the arc-extinguishing chamber and instant circuit breaking in the scheme, and solving the technical problems that the circuit breaker has poor current blocking condition and cannot instantly break the circuit.
The utility model provides a single module circuit breaker energy storage spring mechanism, adopt parts such as energy storage connecting rod and rotating pin, the circuit breaker can not appear the operation overvoltage of harm when breaking inductive load such as transformer, because the vacuum interrupter, with the good mechanical characteristic cooperation of epoxy insulating spring operation, still make the vacuum circuit breaker can successfully close many times, divide capacitor group, and can not appear the relighting overvoltage; the circuit breaker also adopts an auxiliary operation mechanism of an energy storage connecting rod and a rotating pin, energy can be stored electrically, only an emergency hand lever needs to be pulled when energy is required to be stored, a stepping motor in an operation box slowly compresses the energy storage connecting rod and an epoxy resin insulating spring to a measuring range to complete an energy storage process, the emergency hand lever is moved back when circuit breaking is required, the stepping motor stops, the energy storage connecting rod and the epoxy resin insulating spring rebound stably, mechanical auxiliary circuit breaking is realized, and the technical problems that an arc extinguish chamber of the circuit breaker has large current carrying and restrike overvoltage easily occur are solved.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of an energy storage spring mechanism for a single-module circuit breaker according to the present invention;
fig. 2 is a front view of the circuit breaker of the present invention;
fig. 3 is a rear view of the circuit breaker of the present invention;
FIG. 4 is a partial view of the rear frame of the case of the present invention;
fig. 5 is a partial view of the support shell of the present invention.
Reference numbers in the figures: 1. a vacuum arc-extinguishing chamber; 2. an arc extinguishing connecting pipe; 201. a bottom inspection tube; 3. a support housing; 301. a housing mounting screw; 302. a screw mounting hole; 303. a support long plate; 304. an inner weight reduction groove; 4. an epoxy insulating spring; 401. a bakelite screw board; 5. a box body rear end frame; 501. a spring is arranged on the laminated plate; 6. a plug and a socket; 7. an operation box; 8. a power supply stage; 9. an emergency hand lever; 10. a control button; 11. an energy storage connecting rod; 1101. a rotation pin; 12. the frame plate mounting screws.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Exemplary embodiments of the present invention are shown in the drawings.
The first embodiment is as follows:
as shown in fig. 1, the utility model discloses a single module circuit breaker energy storage spring mechanism, including operation box 7, urgent hand lever 9 is installed to 7 front ends of operation box, 7 one sides of operation box are equipped with power level 8, and 8 bottoms of power level are equipped with control button 10, there is box rear end frame 5 operation box 7 rear side through the mounting screw, and 5 opposite sides of box rear end frame are connected with epoxy insulating spring 4, the epoxy insulating spring 4 other end is connected in supporting shell 3, and 3 inboards of supporting shell install arc extinguishing connecting pipe 2 and vacuum interrupter 1, 3 bottoms of supporting shell are rotated and are installed energy storage connecting rod 11, and 11 opposite sides of energy storage connecting rod are connected in operation box 7, 5 both sides of box rear end frame are equipped with frame plate mounting screw 12 and are used for being connected with the wall, it can accomplish the break-off circuit in the twinkling of an eye to have the circuit breaker, the current-carrying is little, advantages such as the over-voltage can not appear relighting.
As shown in fig. 2, a bottom inspection tube 201 is disposed between the arc-extinguishing connecting tube 2 and the bottom of the supporting shell 3, so that the arc-extinguishing connecting tube 2 can be placed.
As shown in fig. 3, the outer side of the supporting shell 3 is connected with the wall surface by being provided with a shell mounting screw 301, and the outer side of the supporting shell 3 is provided with a screw mounting hole 302, so that the supporting shell 3 can be connected with the wall surface; the top of the operation box 7 is provided with a plug and a socket 6, which can realize power input.
In the implementation, the vacuum arc extinguish chamber 1 of the circuit breaker is manufactured by adopting a one-time sealing and exhausting technology; the contact material is made of copper-chromium alloy through arc smelting. The contact adopts advanced design shape and structure, and has extremely high arc resistance and small arc voltage drop. Therefore, on the premise of ensuring the rated on-off short-circuit current, the volume of the arc extinguish chamber can be smaller, and the principle of the circuit interruption in the scheme is that when the contacts in the vacuum arc extinguish chamber 1 are separated, the interrupted current generates metal steam, the current is maintained to the next current zero point through a metal steam channel, and the electric arc is interrupted at the zero-crossing position. The metal steam loses the conductive performance within microseconds, so that the dielectric strength of the contact gap can be quickly restored, and the vacuum arc-extinguishing chamber 1 made of various materials and in different sizes can be selected according to different breaking capacities, thereby achieving the purposes of small current carrying of the arc-extinguishing chamber and instant circuit breaking in the scheme.
Example two:
as shown in fig. 4, on the basis of the first embodiment, the utility model provides a technical solution: a rotating pin 1101 is arranged in the energy storage connecting rod 11, so that auxiliary energy storage of equipment can be realized; the epoxy resin insulation spring 4 is connected with the supporting shell 3 and the box body rear end frame 5 through the wood screw plate 401, so that the connection between the epoxy resin insulation spring 4 and the supporting shell 3 can be realized; the spring mounting laminated plate 501 is arranged on the inner side of the box body rear end frame 5, the spring mounting laminated plate 501 and the bakelite screw plate 401 are fixed through screws, and the bakelite screw plate 401 can be fixed.
As shown in fig. 5, a support long plate 303 and an inner weight-reducing groove 304 are provided inside the support case 3, so that the support arc-extinguishing connection pipe 2 can be protected.
In implementation, when the circuit breaker is used for switching on or off inductive loads such as a transformer and the like, harmful operation overvoltage cannot occur, and because the vacuum arc-extinguishing chamber 1 is matched with the excellent mechanical characteristics operated by the epoxy resin insulating spring 4, the vacuum circuit breaker can be successfully switched on and divided into capacitor groups for multiple times, and reignition overvoltage cannot occur; the circuit breaker still adopts the auxiliary operation mechanism of energy storage connecting rod 11 and rotating pin 1101, can electronic energy storage, only need stimulate urgent hand lever 9 when needing the energy storage, step motor in the control box 7 slowly compresses energy storage connecting rod 11 and epoxy insulating spring 4 to the range, accomplishes the energy storage process, moves back urgent hand lever 9 when needs open circuit, and step motor stops, and energy storage connecting rod 11 and epoxy insulating spring 4 are stable to be kick-backed, realize that mechanical assistance opens circuit.
In this embodiment: the bakelite screw board 401 and the shell mounting screw 301 are DIN-7984-M6 socket head cap screws, and the power stage 8, the control button 10, the plug and socket 7 and the emergency hand lever 9 are related accessories of a 3AH5404-2 type circuit breaker.
The advantages of the technical solution in practical application include, but are not limited to, the following:
1. the circuit breaker can instantly break the circuit;
2. the current carrying of the arc extinguish chamber of the circuit breaker is small, and the restrike overvoltage can not occur.
The technical scheme adopts the components such as the vacuum arc-extinguishing chamber 1, the epoxy resin insulating spring 4, the energy storage connecting rod 11 and the like, the equipment is different from the traditional circuit breaker, and the circuit breaker has the advantages that the circuit can be instantly disconnected, the current carrying of the arc-extinguishing chamber is small, the restriking overvoltage cannot occur and the like; the vacuum arc extinguish chamber 1 of the circuit breaker is manufactured by adopting a one-time sealing and exhausting technology; the contact material is made of copper-chromium alloy through arc smelting. The contact adopts advanced design shape and structure, and has extremely high arc resistance and small arc voltage drop. Therefore, on the premise of ensuring the rated on-off short-circuit current, the volume of the arc extinguish chamber can be smaller, and the principle of the circuit interruption in the scheme is that when the contacts in the vacuum arc extinguish chamber 1 are separated, the interrupted current generates metal steam, the current is maintained to the next current zero point through a metal steam channel, and the electric arc is interrupted at the zero-crossing position. The metal steam loses the conductive performance within microseconds, so that the dielectric strength of the contact gap can be quickly restored, and the vacuum arc-extinguishing chamber 1 made of various materials and in different sizes can be selected according to different breaking capacities, thereby achieving the purposes of small current carrying of the arc-extinguishing chamber and instant circuit breaking in the scheme; meanwhile, when the circuit breaker is used for breaking inductive loads such as a transformer and the like, harmful operation overvoltage cannot occur, and because the vacuum arc extinguish chamber 1 is matched with the excellent mechanical characteristics of the operation of the epoxy resin insulating spring 4, the vacuum circuit breaker can be successfully closed for multiple times and is divided into capacitor groups, and the restriking overvoltage cannot occur; the circuit breaker also adopts an auxiliary operation mechanism of an energy storage connecting rod 11 and a rotating pin 1101, so that energy can be stored electrically, when energy is required to be stored, only the emergency hand lever 9 needs to be pulled, and a stepping motor in an operation box 7 slowly compresses the energy storage connecting rod 11 and the epoxy resin insulation spring 4 to a measuring range, so that the energy storage process is completed, when circuit breaking is required, the emergency hand lever 9 is moved back, the stepping motor stops, and the energy storage connecting rod 11 and the epoxy resin insulation spring 4 rebound stably, so that mechanical auxiliary circuit breaking is realized; in the solution, the power stage 8, the control box 7, the plug and socket 6 and the control button 10 are common elements of circuit breakers, and in the solution, only layout and layout are provided, and the principle and function of the circuit breaker are not designed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a single module circuit breaker energy storage spring mechanism, includes control box (7), its characterized in that: urgent hand lever (9) is installed to control box (7) front end, control box (7) one side is equipped with power level (8), and is equipped with control button (10) power level (8) bottom, there is box rear end frame (5) operating box (7) rear side through the screw mounting, and box rear end frame (5) opposite side is connected with epoxy insulating spring (4), epoxy insulating spring (4) other end is connected in supporting shell (3), and supports shell (3) inboard and install arc extinguishing connecting pipe (2) and vacuum interrupter (1), support shell (3) bottom and rotate and install energy storage connecting rod (11), and energy storage connecting rod (11) opposite side is connected in control box (7), box rear end frame (5) both sides are equipped with frame plate mounting screw (12) and are used for being connected with the wall.
2. The single module circuit breaker stored energy spring mechanism according to claim 1, characterized in that the stored energy link (11) is internally provided with a rotation pin (1101).
3. The energy storage spring mechanism of the single-module circuit breaker according to claim 1, characterized in that a bottom inspection tube (201) is arranged between the arc extinguishing connecting tube (2) and the bottom of the supporting shell (3).
4. The energy storage spring mechanism of the single-module circuit breaker as claimed in claim 1, wherein the outer side of the supporting shell (3) is connected to a wall surface by being provided with a shell mounting screw (301), and the outer side of the supporting shell (3) is provided with a screw mounting hole (302).
5. The energy storage spring mechanism of single-module circuit breaker as claimed in claim 1, characterized in that the support housing (3) is provided with a support long plate (303) and an internal weight-reduction groove (304) inside.
6. The single module circuit breaker stored energy spring mechanism according to claim 1, characterized in that the epoxy resin insulation spring (4) is connected with the support case (3) and the box body rear end frame (5) through a bakelite screw plate (401).
7. The energy storage spring mechanism of the single-module circuit breaker as claimed in claim 1, wherein a spring mounting laminated plate (501) is arranged on the inner side of the box body rear end frame (5), and the spring mounting laminated plate (501) and the bakelite screw plate (401) are fixed through screws.
8. The single module circuit breaker stored energy spring mechanism according to claim 1, characterized in that the top of the operation box (7) is provided with a plug and socket (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223367392.4U CN218676934U (en) | 2022-12-15 | 2022-12-15 | Energy storage spring mechanism of single-module circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223367392.4U CN218676934U (en) | 2022-12-15 | 2022-12-15 | Energy storage spring mechanism of single-module circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218676934U true CN218676934U (en) | 2023-03-21 |
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ID=85550801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223367392.4U Active CN218676934U (en) | 2022-12-15 | 2022-12-15 | Energy storage spring mechanism of single-module circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218676934U (en) |
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2022
- 2022-12-15 CN CN202223367392.4U patent/CN218676934U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Jianlong Inventor after: Chen Yinxia Inventor after: Lian Baojin Inventor before: Huang Jianlong Inventor before: Chen Yinxia Inventor before: Lian Baojin |
|
| CB03 | Change of inventor or designer information |