CN214012827U - Support type gas-filled cabinet circuit breaker - Google Patents
Support type gas-filled cabinet circuit breaker Download PDFInfo
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- CN214012827U CN214012827U CN202120066344.8U CN202120066344U CN214012827U CN 214012827 U CN214012827 U CN 214012827U CN 202120066344 U CN202120066344 U CN 202120066344U CN 214012827 U CN214012827 U CN 214012827U
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Abstract
The utility model discloses a cabinet circuit breaker is aerifyd to posture, include: the electric conduction assembly is arranged on the sealing plate through a support structure, the support structure comprises insulating supports symmetrically arranged on two sides of the electric conduction assembly, the electric conduction assembly comprises a vacuum arc extinguish chamber, a conductive column, a spring contact finger, a static end conductive plate and a movable end conductive plate, one end of the vacuum arc extinguish chamber is fixedly arranged at the end parts of the two insulating supports through the static end conductive plate, and a static end wiring hole is formed in the static end conductive plate; the other end of the vacuum arc extinguish chamber is provided with the conductive column, the movable end conductive plate is sleeved on the conductive column and fixedly connected with the insulating support, and the movable end conductive plate is provided with a movable end wiring hole. The utility model relates to a cabinet circuit breaker is aerifyd to posture, heat dispersion is good, and is compatible high, the convenient maintenance.
Description
Technical Field
The utility model relates to a circuit breaker field, in particular to cabinet circuit breaker is aerifyd to posture.
Background
The circuit breaker is a switching device capable of closing, carrying, and opening a current under a normal circuit condition, and closing, carrying, and opening a current under an abnormal circuit condition (including a short-circuit condition) within a prescribed time. The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, has the function equivalent to the combination of a fuse type switch, an over-under-heat relay and the like, and generally does not need to change parts after breaking fault current. The gas-filled cabinet circuit breaker organically combines the insulation technology and the sealing technology of SF6 of GIS with the manufacturing technology of air-insulated metal-enclosed switchgear, and all high-voltage elements are arranged in a box-shaped sealed container to be filled with insulating gas with lower pressure, so that the gas-filled cabinet circuit breaker is compact and expandable, is suitable for distribution automation and is more and more widely used.
The circuit breaker that current gas insulated switchgear adopted is generally to be installed solid utmost point post, lead electrical pillar, insulating pull rod and bellows etc. in a confined casing, then in fixed to the cabinet body. The following disadvantages exist with this structural design: 1. the fixing and sealing structure prevents heat generated by the conductive assembly from being emitted in time, and the heat dissipation performance is poor; 2. the mounting structure is limited, and the vacuum arc-extinguishing chamber can be mounted only according to a preset design, so that the position of a wiring terminal of the vacuum arc-extinguishing chamber is inconvenient to change, and some special cabinets cannot be mounted; 3. compatibility is poor, only the corresponding matched solid-sealed polar pole can be selected, adjustment is not convenient to be made according to the current grade, and cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that a cabinet circuit breaker is aerifyd to a posture is aerifyd to overcome the tradition and aerify that cabinet circuit breaker heat dispersion is relatively poor, mounting structure receives restriction, compatible low, the higher defect of cost.
The utility model discloses a solve the technical scheme that its technical problem adopted and be: a pedestal-type gas-filled cabinet circuit breaker comprising: the vacuum circuit breaker comprises a sealing plate, an operating mechanism fixed on one side of the sealing plate, and a conductive assembly, an insulating pull rod and a corrugated pipe which are positioned on the other side of the sealing plate, wherein the conductive assembly is connected with the operating mechanism sequentially through the insulating pull rod and the corrugated pipe, the conductive assembly is arranged on the sealing plate through a support structure, the support structure comprises insulating supports symmetrically arranged on two sides of the conductive assembly, the conductive assembly comprises a vacuum arc extinguish chamber, a conductive column, a static end conductive plate and a moving end conductive plate, one end of the vacuum arc extinguish chamber is fixedly arranged at the end parts of the two insulating supports through the static end conductive plate, and a static end wiring hole is formed in the static end conductive plate; the other end of the vacuum arc extinguish chamber is provided with the conductive column, the movable end conductive plate is sleeved on the conductive column and fixedly connected with the insulating support, and the movable end conductive plate is provided with a movable end wiring hole.
As a further improvement of the utility model, it passes through the screw fixation at two to move the end current conducting plate on the insulating support, and can make it can protrusion in arbitrary to move the end wiring hole insulating support.
As a further improvement, the sealing plate is provided with a plurality of first blind holes, the insulating support pass through the screw with first blind hole fixed connection.
As the utility model discloses a further improvement, two the insulating support is close to closing plate one end extends relatively and forms the lug plate, be provided with the screw hole on the lug plate.
As a further improvement of the utility model, the conductive component still includes that the spring touches and indicates, it is provided with the ring channel to move the end current conducting plate along the inner wall, the spring touches to indicate to install in the ring channel, just the spring touch indicate with lead electrical pillar sliding contact.
As a further improvement, the vacuum interrupter is provided with static contact and moving contact in, the static contact electricity connect in the quiet end current conducting plate, the moving contact electricity connect in lead electrical pillar, quiet end current conducting plate the static contact the moving contact lead electrical pillar the spring touch indicate and move the end current conducting plate and constitute electrically conductive return circuit.
As a further improvement of the utility model, the closing plate is provided with the through-hole, the bellows suit is in the through-hole and be provided with the flanging in convex one end, the flanging with install the sealing washer between the closing plate, install sealing flange on the flanging, sealing flange passes through the screw fixation on the second blind hole on the closing plate.
The utility model has the advantages that:
1. the utility model provides a bracket type gas-filled cabinet breaker, which is fixed on the upper side and the lower side of a vacuum arc extinguish chamber through insulating brackets, the conductive part of the breaker has no package, heat can be timely distributed, and the heat dispersion performance is better;
2. the conductive column is sleeved with a movable end conductive plate which is electrically connected, when the movable end conductive plate is arranged on the insulating support, the movable end wiring hole can be selectively protruded out of the insulating support on the upper side or the lower side, so that the installation is convenient, and the wire outlet can be freely selected to be upward or downward when the conductive assembly and the insulating support are assembled and then arranged on the sealing plate, so that the adjustment is convenient, the conductive assembly is suitable for different inflatable cabinet structures, and the wiring is convenient to install;
3. the bracket type mounting structure is convenient to maintain and can be adjusted according to the current grade, the phase distance can be increased or reduced by changing the distance between two adjacent groups of insulating brackets, the space can be saved, when the circuit breaker with different phase distances is assembled, the sealing plate, the bracket structure and the like can be adjusted according to requirements, the vacuum arc extinguish chamber can be compatible with various vacuum arc extinguish chamber structures of different manufacturers, the adjustment is convenient and quick, standard parts can be prepared in batches, and the cost is saved;
4. the insulating support is fixedly connected with the blind hole in the sealing plate through the screw, sealing treatment is not needed to be carried out at the position, the cost of a sealing piece is saved, and the hidden danger of air leakage at the position is avoided.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a cross-sectional view of the present invention with the operating mechanism removed;
FIG. 3 is an enlarged view of A in FIG. 2 according to the present invention;
fig. 4 is a perspective view of the present invention with the operating mechanism and the sealing plate removed;
fig. 5 is a perspective view of the sealing plate of the present invention;
fig. 6 is a perspective view of another view angle of the sealing plate of the present invention.
The following description is made with reference to the accompanying drawings:
1-sealing plate; 101-first blind hole;
102-through hole; 103-second blind hole;
2-an operating mechanism; 3-vacuum arc-extinguishing chamber;
301-stationary contact; 302-moving contact;
4-conductive column; 5-insulating pull rod;
6-spring contact finger; 7-corrugated pipe;
701-flanging; 8-insulating support;
801-lug plate; 9-static end conductive plate;
10-moving end conductive plate; 1001 — dynamic end wiring hole;
11-sealing ring; 12-sealing flange.
Detailed Description
The following description of the preferred embodiments of the present invention will be made in conjunction with the accompanying drawings.
Referring to fig. 1 to 6, the utility model provides a rack-type gas-filled tank circuit breaker, include: the sealing plate comprises a sealing plate 1, an operating mechanism 2 fixed on one side of the sealing plate 1, and a conductive assembly, an insulating pull rod 5 and a corrugated pipe 7 which are positioned on the other side of the sealing plate 1, wherein the conductive assembly is connected with the operating mechanism 2 sequentially through the insulating pull rod 5 and the corrugated pipe 7. The conductive assembly comprises a static end conductive plate 9, a vacuum arc extinguish chamber 3, a conductive column 4, a spring contact finger 6 and a movable end conductive plate 10 which are sequentially connected, a static contact 301 and a movable contact 302 are arranged in the vacuum arc extinguish chamber 3, the static contact 301 is electrically connected with the static end conductive plate 9, and the movable contact 302 is electrically connected with the conductive column 4. The operating mechanism 2 can drive the corrugated pipe 7 to drive the movable contact 302 to reciprocate through the insulating pull rod 5 so as to realize the opening and closing with the fixed contact 301.
Referring to fig. 2, 3 and 6, the sealing plate 1 is provided with a through hole 102, the bellows 7 is sleeved in the through hole 102, a flange 701 is arranged at a protruding end of the bellows 7, a sealing groove is arranged on one side of the flange 701 facing the sealing plate 1, and a sealing ring 11 is arranged in the sealing groove. The outward flange 701 is provided with a sealing flange 12, and the sealing flange 12 is fixed on the second blind hole 103 of the sealing plate 1 through screws. The corrugated pipe 7 is pressed on the sealing plate 1 through the sealing flange 12, and the sealing ring 11 is pressed and fixed between the sealing plate 1 and the outward flanging 701, so that the sealing property is ensured; the screw hole for fixing the sealing flange 12 on the sealing plate 1 is designed by adopting a second blind hole 103 so as to ensure the sealing property.
Referring to fig. 2 and 4, the conductive assembly is mounted on the sealing plate 1 through a support structure, the support structure includes insulating supports 8 symmetrically disposed on upper and lower sides of the conductive assembly, one end of the vacuum arc-extinguishing chamber 3 is fixedly mounted on ends of the two insulating supports 8 through a static end conductive plate 9, and a static end wiring hole is disposed on the static end conductive plate 9. The other end of the vacuum arc extinguish chamber 3 is connected with a conductive column 4, a guide sleeve is installed between the vacuum arc extinguish chamber 3 and the movable end conductive plate 10, one end of the guide sleeve is fixed on the movable end conductive plate 10, the other end of the guide sleeve is clamped on a boss at the end part of the vacuum arc extinguish chamber 3, and the conductive column 4 and the movable contact 302 act in the middle of the guide sleeve and do not contact with the guide sleeve. The movable end conductive plate 10 is sleeved on the conductive column 4 and fixedly connected with the insulating support 8, and the movable end conductive plate 10 is provided with a movable end wiring hole 1001. The insulating support 8 of upper and lower both sides is provided with the diaphragm corresponding to movable end current conducting plate 10, movable end current conducting plate 10 passes through the screw fixation on two upper and lower diaphragms, when movable end current conducting plate 10 is installed on the insulating support, can make the selective protrusion of movable end wiring hole 1001 in the insulating support 8 of upside or downside, be convenient for install, and can freely select to be qualified for the next round of competitions up or down when installing on closing plate 1 after assembling conductive component and insulating support 8, conveniently make the adjustment, in order to be applicable to the different gas insulated cabinet structure, be convenient for install the wiring. Insulating support 8 through upper and lower both sides is fixed vacuum interrupter 3, makes conducting segment expose in aerifing the cabinet air chamber, because whole air chamber is seal structure, and isolated with the environment, consequently can not cause dust pollution to conducting segment does not have the parcel, and the heat can in time distribute out, and heat dispersion is better.
Wherein, the conducting component arranges and is provided with three groups, corresponds to three-phase electricity, uses six insulating support 8, and two liang of a set of fixes vacuum interrupter 3 respectively. The insulating supports 8 are fixed on the inner side of the sealing plate 1 by screws, and when the insulating supports are suitable for a high-current circuit breaker, the phase spacing is widened, namely the spacing between two groups of insulating supports 8 adjacent to each other on the left and right is increased, and the matched conductive piece is in a high-current specification; when being applicable to undercurrent circuit breaker, can narrow down with the looks interval, supporting electrically conductive spare chooses for use undercurrent specification, can save space, when equipment different looks interval circuit breaker, only need with closing plate 1, frame and main shaft carry out size adjustment can, the adjustment is convenient simple, simultaneously can compatible different models's many forms vacuum interrupter 3 structures, when having appointed vacuum interrupter 3 and leading to unable cooperation installation, only need change quiet end current conducting plate 9, lead one or more in electrical pillar 4 and the uide bushing and can satisfy the operation requirement basically, adjustment convenient and fast, the standard part can be in batches the stock, and the cost is saved.
Preferably, the sealing plate 1 is provided with the first blind holes 101, the insulating support 8 is fixedly connected with the first blind holes 101 through screws, sealing processing is not needed to be carried out at the position, the cost of a sealing piece is saved, and the hidden danger of air leakage at the position is avoided.
Referring to fig. 2, the movable end conductive plate 10 is provided with an annular groove along the inner wall, a spring contact finger 6 is installed in the annular groove, and the spring contact finger 6 is in sliding contact with the conductive post 4. The spring contact finger 6 is installed on the inner wall of the moving end conductive plate 10 and is always in elastic contact with the spring contact finger 6, that is, the conductive column 4 is always in contact with the moving end conductive plate 10 through the spring contact finger 6 when moving back and forth left and right under the driving of the insulating pull rod 5, so that the electric power transmission of the moving contact 302 is realized. The dynamic connection of the moving contact 302 and the moving end conducting plate 10 is realized through the matching of the conducting column 4, the moving end conducting plate 10 and the spring contact finger 6, the traditional flexible connection structure is avoided, the connection is stable and reliable, the conducting performance is good, and the service life of the product is greatly prolonged. The fixed contact 301 is electrically connected to the fixed end conductive plate 9, the movable contact 302 is electrically connected to the conductive column 4, and the fixed end conductive plate 9, the fixed contact 301, the movable contact 302, the conductive column 4, the spring contact finger 6 and the movable end conductive plate 10 form a conductive loop.
Referring to fig. 3, one end of each of the two insulating brackets 8 near the sealing plate 1 extends relatively to form a lug plate 801 located on both sides, the lug plates 801 on both sides are provided with screw holes, and the screw holes are also formed in the positions of the insulating brackets 8 between the lug plates 801 on both sides and are fixedly connected to the blind holes through screws, so that the mounting is stable and firm.
Therefore, the bracket type gas-filled cabinet circuit breaker of the utility model is fixed on the upper and lower sides of the vacuum arc extinguish chamber through the insulating bracket, the conductive part of the circuit breaker is not wrapped, heat can be emitted in time, and the heat radiation performance is better; the conductive column is sleeved with a movable end conductive plate which is electrically connected, when the movable end conductive plate is arranged on the insulating support, the movable end wiring hole can be selectively protruded out of the insulating support on the upper side or the lower side, so that the installation is convenient, and the wire outlet can be freely selected to be upward or downward when the conductive assembly and the insulating support are assembled and then arranged on the sealing plate, so that the adjustment is convenient, the conductive assembly is suitable for different inflatable cabinet structures, and the wiring is convenient to install; the bracket type mounting structure is convenient to maintain and can be adjusted according to the current grade, the phase distance can be increased or reduced by changing the distance between two adjacent groups of insulating brackets, the space can be saved, when the circuit breaker with different phase distances is assembled, the sealing plate, the bracket structure and the like can be adjusted according to requirements, the vacuum arc extinguish chamber can be compatible with various vacuum arc extinguish chamber structures of different manufacturers, the adjustment is convenient and quick, standard parts can be prepared in batches, and the cost is saved; the insulating support is fixedly connected with the blind hole in the sealing plate through the screw, sealing treatment is not needed to be carried out at the position, the cost of a sealing piece is saved, and the hidden danger of air leakage at the position is avoided.
In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the invention. The foregoing description is only illustrative of the preferred embodiments of the invention, which can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. All the contents that do not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention all still belong to the protection scope of the technical solution of the present invention.
Claims (7)
1. A pedestal-type gas-filled cabinet circuit breaker comprising: sealing plate (1), fix operating device (2) of sealing plate (1) one side and being located the conductive component, insulating pull rod (5) and bellows (7) of sealing plate (1) opposite side, conductive component loops through insulating pull rod (5) with bellows (7) with operating device (2) are connected its characterized in that: the electric conduction assembly is mounted on the sealing plate (1) through a support structure, the support structure comprises insulating supports (8) symmetrically arranged on two sides of the electric conduction assembly, the electric conduction assembly comprises a vacuum arc-extinguishing chamber (3), a conductive column (4), a static end conductive plate (9) and a movable end conductive plate (10), one end of the vacuum arc-extinguishing chamber (3) is fixedly mounted at the end parts of the two insulating supports (8) through the static end conductive plate (9), and a static end wiring hole is formed in the static end conductive plate (9); install the other end of vacuum interrupter (3) lead electrical pillar (4), move end conductive plate (10) suit be in lead on electrical pillar (4) and with insulating support (8) fixed connection, move end conductive plate (10) are provided with move end wiring hole (1001).
2. The cradle type gas tank circuit breaker according to claim 1, wherein: the movable end conducting plate (10) is fixed on the two insulating supports (8) through screws, and the movable end wiring hole (1001) can protrude out of any one insulating support (8).
3. The cradle type gas tank circuit breaker according to claim 1, wherein: a plurality of first blind holes (101) are formed in the sealing plate (1), and the insulating support (8) is fixedly connected with the first blind holes (101) through screws.
4. The cradle type gas tank circuit breaker according to claim 1, wherein: two insulating support (8) are close to sealing plate (1) one end extends relatively and forms lug plate (801), be provided with the screw hole on lug plate (801).
5. The cradle type gas tank circuit breaker according to claim 1, wherein: the conductive assembly further comprises a spring contact finger (6), an annular groove is formed in the inner wall of the movable end conductive plate (10), the spring contact finger (6) is installed in the annular groove, and the spring contact finger (6) is in sliding contact with the conductive column (4).
6. The cradle type gas tank circuit breaker according to claim 5, wherein: a fixed contact (301) and a movable contact (302) are arranged in the vacuum arc-extinguishing chamber (3), the fixed contact (301) is electrically connected with the fixed end conductive plate (9), the movable contact (302) is electrically connected with the conductive column (4), and the fixed end conductive plate (9), the fixed contact (301), the movable contact (302), the conductive column (4), the spring contact finger (6) and the movable end conductive plate (10) form a conductive loop.
7. The cradle type gas tank circuit breaker according to claim 1, wherein: the sealing plate (1) is provided with a through hole (102), the corrugated pipe (7) is sleeved in the through hole (102) and provided with a flanging (701) at one convex end, the flanging (701) and a sealing ring (11) are installed between the sealing plate (1), a sealing flange (12) is installed on the flanging (701), and the sealing flange (12) is fixed on a second blind hole (103) in the sealing plate (1) through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120066344.8U CN214012827U (en) | 2021-01-12 | 2021-01-12 | Support type gas-filled cabinet circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120066344.8U CN214012827U (en) | 2021-01-12 | 2021-01-12 | Support type gas-filled cabinet circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214012827U true CN214012827U (en) | 2021-08-20 |
Family
ID=77295504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120066344.8U Active CN214012827U (en) | 2021-01-12 | 2021-01-12 | Support type gas-filled cabinet circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214012827U (en) |
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2021
- 2021-01-12 CN CN202120066344.8U patent/CN214012827U/en active Active
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