CN210245443U - Arc extinguishing assembly quality of circuit breaker - Google Patents
Arc extinguishing assembly quality of circuit breaker Download PDFInfo
- Publication number
- CN210245443U CN210245443U CN201921326606.9U CN201921326606U CN210245443U CN 210245443 U CN210245443 U CN 210245443U CN 201921326606 U CN201921326606 U CN 201921326606U CN 210245443 U CN210245443 U CN 210245443U
- Authority
- CN
- China
- Prior art keywords
- assembling
- chuck
- female
- assembly
- male
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a circuit breaker arc extinguishing assembly quality, including assembling the male chuck, assembling the female chuck, pushing up the compression spring and leading the positive bolt; the assembling male chuck is opposite to the assembling female chuck and movably connected with the assembling female chuck through a guide bolt, the jacking pressure spring is sleeved on the guide bolt, and two ends of the jacking pressure spring respectively abut against the assembling male chuck and the assembling female chuck. Because the utility model discloses be equipped with the tight pressure spring in top and lead the positive bolt between assembly public dop and the assembly female dop, be a scalable location structure to design according to the protection thick layer size of copper tungsten alloy contact, make in the arc extinguishing chamber arc-extinguishing piece touch with quiet flower lamella and indicate that assembly back data can realize unifying, standardized the standard of assembly, have assembly efficiency height, easy operation's advantage.
Description
Technical Field
The utility model relates to an electrical equipment field especially relates to a circuit breaker arc extinguishing assembly quality.
Background
The use of sulfur hexafluoride as an arc-extinguishing medium in circuit breakers began in the early 50's of the 20 th century. Due to the excellent characteristics of the gas, the single fracture of the circuit breaker is greatly higher than that of a compressed air circuit breaker and a low-oil circuit breaker in terms of voltage and current parameters, and high gas pressure and a considerable number of serial fractures are not required. In the 60-70 s, SF6 circuit breakers were widely used in ultra-high voltage high capacity power systems. In the early 80 s, 363 kilovolt single-fracture and 550 kilovolt double-fracture and SF6 circuit breakers with rated breaking current reaching 80 kilovolt and 100 kilovolt ampere have been developed successfully. Wherein the SF6 circuit breaker of tank structure has adopted the advantage of box many oil circuit breaker, is in the same place circuit breaker and mutual-inductor dress, compact structure, and earthquake-resistant and antifouling ability is strong, but the seriousness is relatively poor. The structure of the Chinese LW-3 tank type SF6 breaker is shown in the figure. The circuit breaker comprises a box body base, an insulating porcelain sleeve, a current transformer and a shell provided with a single-fracture arc extinguish chamber. The circuit breaker adopts a bidirectional longitudinal pushing type arc extinguish chamber, and during brake opening, the moving contact is driven to move through a crank arm box transmission mechanism. The arc-extinguishing chamber is filled with SF6 gas of nominal pressure.
Besides the adoption of SF6 gas insulation, an arc extinguishing chamber is also the main technology of the SF6 circuit breaker. Arc extinguishing materials of moving and static contacts in the breaker box are made of copper-tungsten alloy, and arc extinguishing performance of opening and closing (particularly opening under the load condition) is very important for the whole equipment, so that the uniform standard is necessarily required in the equipment assembling process. Therefore, the inventor develops a high-efficiency device with uniform and standardized assembly specially aiming at the problem existing in the installation of the gap between the arc extinguishing sheet and the contact finger of the petal between the movable contact and the fixed contact in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a standard is unified, efficient circuit breaker arc extinguishing assembly quality.
In order to achieve the above object, the technical solution of the present invention is:
the utility model relates to a circuit breaker arc extinguishing assembly quality, including assembling the male chuck, assembling the female chuck, pushing up the compression spring and leading the positive bolt; the assembling male chuck is opposite to the assembling female chuck and movably connected with the assembling female chuck through a guide bolt, the jacking pressure spring is sleeved on the guide bolt, and two ends of the jacking pressure spring respectively abut against the assembling male chuck and the assembling female chuck.
The assembling male chuck is connected with the assembling female chuck in a male-female tenon matching mode.
The pilot bolt locks the assembling female chuck on the assembling male chuck and the pilot bolt is in clearance fit with the assembling female chuck.
The width dimension of the assembling male clamping head and the assembling female clamping head is smaller than the diameter of the arc extinguishing piece hole.
After the scheme of the above, because the utility model discloses an assembly public dop, the female dop of assembly, top tight pressure spring and lead the positive bolt, be equipped with top tight pressure spring and lead the positive bolt between assembly public dop and the female dop of assembly, but be a scalable location structure, and design according to the protection thick layer size of copper tungsten alloy contact, it indicates that the post-assembly data can realize unifying to make the arc-extinguishing piece touch with quiet flower lamella in the arc extinguish chamber, the standard of assembly has been standardized, make the product arc extinguishing effect reach the uniformity and stability, guarantee sound contact is opening and shutting floodgate process arc light and erode the material as far as possible, the assembly efficiency is high, easy operation's advantage has.
The invention will be further described with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is an isometric view of the present invention;
fig. 2 is an exploded perspective view of the present invention;
fig. 3 is a side view of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is an exploded perspective view of the assembly of the present invention;
FIG. 6 is an isometric view of the assembly of the present invention;
FIG. 7 is a cross-sectional view of the assembly of the present invention;
FIG. 8 is an enlarged view of a portion of FIG. 7 at D;
fig. 9 is a sectional view taken along line C-C of fig. 7.
Detailed Description
As shown in fig. 1-4, the utility model relates to a circuit breaker arc extinguishing assembly quality, including assembly public dop 1, assembly female dop 2, top pressure spring 3 and leading bolt 4.
The assembling male chuck 1 is opposite to the assembling female chuck 2 and is movably connected with the assembling female chuck 2 through a pilot bolt 4, and the assembling male chuck 1 is connected with the assembling female chuck 2 through a male-female tenon matching mode for pilot. The jacking compression spring 3 is sleeved on the pilot bolt 4, and two ends of the jacking compression spring 3 respectively abut against the assembling male chuck 1 and the assembling female chuck 2.
In the present embodiment, the pilot bolt 4 locks the assembling female chuck 2 to the assembling male chuck 1, and the pilot bolt 4 is in clearance fit with the assembling female chuck 2.
In this embodiment, the assembling male chuck 1 is provided with a guide plate 11, the assembling female chuck 2 is provided with a guide groove 21, and the guide plate 11 on the assembling male chuck 1 is movably sleeved in the guide groove 21 on the assembling female chuck 2.
As shown in fig. 5 and 6, the width of the male chuck 1 and the female chuck 2 is smaller than the diameter of the hole 10 of the arc extinguishing piece (Dmax < d diameter tolerance-0.1-0.2), so that the utility model can extend to the section of the middle section from front to back to fit the inner wall of the arc extinguishing piece 10.
As shown in fig. 7-9, in order to ensure that the utility model is easy to withdraw after assembly, the size of the clamping groove is slightly larger than the thickness of the arc-extinguishing piece 10 (Fmin > f thickness tolerance +0.1+0.2), and the stage registration part is slightly smaller than the distance between the theoretically designed arc-extinguishing piece 10 and the static petal contact finger 20 copper-tungsten alloy end face (Hmax < h stage tolerance-0.1-0.2).
In order to protect the arc extinguishing piece 10 and the static petal touching 20, the utility model discloses an each end face edge carries out the radius angle according to GB6403.4-86 and handles.
The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited thereby, and all equivalent changes and modifications made within the scope of the claims and the specification should be considered within the scope of the present invention.
Claims (4)
1. The utility model provides a circuit breaker arc extinguishing assembly quality which characterized in that: the device comprises an assembling male chuck, an assembling female chuck, a jacking compression spring and a pilot bolt; the assembling male chuck is opposite to the assembling female chuck and movably connected with the assembling female chuck through a guide bolt, the jacking pressure spring is sleeved on the guide bolt, and two ends of the jacking pressure spring respectively abut against the assembling male chuck and the assembling female chuck.
2. The circuit breaker arc quenching assembly of claim 1, wherein: the assembling male chuck is connected with the assembling female chuck in a male-female tenon matching mode.
3. The circuit breaker arc quenching assembly of claim 1, wherein: the pilot bolt locks the assembling female chuck on the assembling male chuck and the pilot bolt is in clearance fit with the assembling female chuck.
4. The circuit breaker arc quenching assembly of claim 1, wherein: the width dimension of the assembling male clamping head and the assembling female clamping head is smaller than the diameter of the arc extinguishing piece hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921326606.9U CN210245443U (en) | 2019-08-15 | 2019-08-15 | Arc extinguishing assembly quality of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921326606.9U CN210245443U (en) | 2019-08-15 | 2019-08-15 | Arc extinguishing assembly quality of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210245443U true CN210245443U (en) | 2020-04-03 |
Family
ID=69963926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921326606.9U Expired - Fee Related CN210245443U (en) | 2019-08-15 | 2019-08-15 | Arc extinguishing assembly quality of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210245443U (en) |
-
2019
- 2019-08-15 CN CN201921326606.9U patent/CN210245443U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112038170B (en) | Contact operating mechanism of vacuum circuit breaker | |
| CN210245443U (en) | Arc extinguishing assembly quality of circuit breaker | |
| CN112735901B (en) | Vacuum arc-extinguishing chamber with composite contact structure | |
| CN112614737B (en) | Vacuum arc extinguish chamber | |
| WO2024017063A1 (en) | Moving contact of electric switch, and double-break rotary disconnector | |
| CN105470067A (en) | Breaker provided with arc extinguishing mechanism with magnetic blowing and air-blowing functions | |
| CN218676931U (en) | Vacuum circuit breaker with high switching-on and switching-off speed | |
| CN216311705U (en) | Self-excitation air-blast arc extinguisher | |
| CN203895352U (en) | Vacuum arc-extinguishing chamber with switching-on self-keeping function | |
| CN213071051U (en) | High-voltage molded case circuit breaker with gas blocking structure | |
| CN113745044B (en) | Vacuum arc-extinguishing chamber contact | |
| CN110335777A (en) | The disconnecting switch for having opening-closing bus switching current | |
| CN114203480B (en) | Improved operating mechanism of high-voltage vacuum circuit breaker | |
| CN213815946U (en) | Contact structure for GIS gas insulation isolating switch | |
| CN214378206U (en) | Vacuum arc-extinguishing chamber of circuit breaker | |
| CN113808891A (en) | Self-excitation air-blast arc extinguisher | |
| CN109786172B (en) | Built-in isolated vacuum arc-extinguishing chamber component and vacuum circuit breaker | |
| CN108321004B (en) | Pole post | |
| CN113517155A (en) | Vacuum isolation arc-extinguishing device | |
| CN212676208U (en) | Arc extinguishing device of frame circuit breaker | |
| CN220400484U (en) | High-voltage electric switch | |
| CN221508035U (en) | Vacuum arc-extinguishing chamber with buffer protection | |
| CN220420494U (en) | Low-temperature-resistant self-energy sulfur hexafluoride high-voltage circuit breaker | |
| CN217933607U (en) | Circuit breaker | |
| CN113205983B (en) | Quick mechanical switch flat contact with arc striking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200403 Termination date: 20200815 |