CN111627747A - Vacuum circuit breaker - Google Patents
Vacuum circuit breaker Download PDFInfo
- Publication number
- CN111627747A CN111627747A CN202010605365.2A CN202010605365A CN111627747A CN 111627747 A CN111627747 A CN 111627747A CN 202010605365 A CN202010605365 A CN 202010605365A CN 111627747 A CN111627747 A CN 111627747A
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- CN
- China
- Prior art keywords
- block
- wire clamping
- cable
- contact
- connecting pipe
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/6606—Terminal arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
- H01H1/5844—Electric connections to or between contacts; Terminals making use of wire-gripping clips or springs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a vacuum circuit breaker, which structurally comprises a base, arc extinguishing blocks, contact concentration blocks and connecting pipes, wherein the arc extinguishing blocks are welded at the front end of the top of the base, the number of the contact concentration blocks is three, the number of the connecting pipes is six, the connecting pipes are respectively installed at the side ends of the contact concentration blocks in pairs, each connecting pipe comprises a cavity, a line pipe, a connecting port and a connecting pipe body, each connecting pipe body comprises a connecting block, a contact fixing end, a cable through hole, a wire clamping block and a traction block, each wire clamping block comprises a wire clamping body, a clamping block, a wire clamping body, a wire clamping hole and a fixing block, each wire clamping body comprises a wire clamping head, a thread block and a deformation groove, the wire clamping body is rotationally extruded by the clamping body, the aperture in the wire clamping body is reduced, a cable passing through the wire clamping block can be fixed, and the wire clamping body is in threaded connection with the outer surface of the connecting pipes through the, the cable is in contact with the fixed end of the contact, and the long and short cable can be conveniently and fast installed and peeled.
Description
Technical Field
The invention relates to the field of circuit breakers, in particular to a vacuum circuit breaker.
Background
The vacuum circuit breaker is named because arc extinguishing media and insulating media of contact gaps after arc extinguishing are high vacuum; the high-voltage arc extinguishing device has the advantages of small volume, light weight, suitability for frequent operation and no need of maintenance for arc extinguishing, is relatively popularized in power distribution networks, and when short circuit occurs, the circuit generates high temperature in the vacuum arc extinguishing chamber, increases the air pressure in the vacuum arc extinguishing chamber, and enables the piston to drive the transmission device to disconnect the two contacts to protect the circuit.
Based on the findings of the inventor, the existing vacuum circuit breaker mainly has the following defects, such as: when the vacuum circuit breaker is used for wiring, the length of cable peeling is difficult to unify, the distance between the fixed port and the contact is fixed, the short circuit of the electric wire leaked from the cable can not be connected with the contact in the fixed port, otherwise, the short circuit of the electric wire leaked from the cable can be easily caused by exposing partial electric wire at the outer end, the skin of the cable needs to be repeatedly cut when the cable is installed, and the condition of inconvenient installation of the cable is caused.
Disclosure of Invention
In view of the above problems, the present invention provides a vacuum circuit breaker.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a vacuum circuit breaker, its structure includes base, arc-extinguishing piece, the concentrated piece of contact, connecting pipe, the welding of the top front end of base has the arc-extinguishing piece, the concentrated piece of contact is equipped with threely, and transversely installs the rear end at the base, the connecting pipe is equipped with six, and two liang of sides of installing at the concentrated piece of contact respectively, the connecting pipe includes cavity, line pipe, connection port, connecting tube body, the inside of cavity is equipped with the line pipe, the side of cavity is located to connection port, and is linked together with the line pipe, connecting tube body threaded connection is in connection port.
Further, the connecting pipe body comprises a connecting block, a contact fixing end, a cable through hole, a wire clamping block and a traction block, the connecting block is arranged at the rear end of the connecting pipe body and connected with a connecting port, the contact fixing end is arranged at the front end of the connecting block, the cable through hole is arranged at the front end of the contact fixing end, the wire clamping block is clamped in the cable through hole, the traction block is arranged on the outer surface of the front end of the connecting pipe body through threads and is clamped with the wire clamping block, and the diameter of the rear end of the wire clamping block is larger than that of the connecting pipe body.
Furthermore, the wire clamping block comprises a wire clamping body, a clamping block, a clamping body, a wire clamping hole and a fixing block, the clamping block is arranged at the rear end of the wire clamping body and clamped with the traction block, the clamping body is in threaded connection with the outer end of the wire clamping body, the wire clamping hole is formed in the inner end of the wire clamping body, the fixing block is arranged at the rear end of the wire clamping hole and is provided with more than six fixing blocks, the fixing blocks are arranged around the rear end of the wire clamping hole, and the aperture of the front end of the clamping body is gradually enlarged towards the rear end.
Furthermore, the wire clamping body comprises a wire clamping head, two thread blocks and two deformation grooves, the thread blocks are arranged at the front end of the wire clamping head, the two deformation grooves are located at the left end and the right end of each thread block, and each deformation groove is in a triangular shape.
Further, the fixed block includes recess, reset spring, flexible piece, fixed head, the bottom centre of recess is inlayed and is had reset spring, reset spring's top is connected with flexible piece, the both sides block of flexible piece is in the recess, the fixed head is inlayed and is fixed on the top of flexible piece, the port width of recess is less than the bottom width of flexible piece.
Further, the fixed head includes fixed body, sucking disc, breather pipe, dead slot, elastic sheet, friction head, the top both ends of fixed body are equipped with the sucking disc, the breather pipe is the U shape, and is connected two sucking discs, the dead slot sets up in the centre of two sucking discs, elastic sheet is equipped with two, and cross-over mounting is in the bottom of dead slot, the friction head inlays the top at two elastic sheets, the length that the friction head exposes fixed body surface is greater than the height of sucking disc.
Further, the friction head includes friction body, mounting groove, mount pad, rubber strip, the bottom of friction body is the V font form, the mounting groove is equipped with more than six, and transverse arrangement is at the top of friction body, the mount pad is equipped with more than six, and installs in the mounting groove, the rubber strip is equipped with more than six, installs respectively in the mount pad, the orientation of rubber strip is by middle to both ends slope.
Advantageous effects
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the clamping body is utilized to rotatably extrude the wire clamping body, so that the aperture in the wire clamping body is reduced, the cable passing through the wire clamping block can be fixed, the traction block is in threaded connection with the outer surface of the connecting pipe, the wire clamping body can be driven to move towards the tail end of the cable through hole, the cable is in contact with the contact fixed end, and the stripped cable can be conveniently installed.
2. The invention drives the fixed head to push upwards by resetting the reset spring, drives the friction head to push upwards by utilizing the two elastic sheets which are installed in a crossed way, and finally increases the friction force generated between the friction head and the cable by the rubber strip which inclines from the middle to the two ends, thereby avoiding the situation that the cable is loosened after being installed.
Drawings
Fig. 1 is a schematic front view of a vacuum circuit breaker according to the present invention.
Fig. 2 is a schematic cross-sectional view of a connection pipe according to the present invention.
Fig. 3 is a schematic cross-sectional view of the connecting tube of the present invention.
Fig. 4 is a schematic cross-sectional structural view of the wire clamping block of the present invention.
Fig. 5 is a schematic perspective view of a clip body according to the present invention.
Fig. 6 is an enlarged structural view of a in fig. 4 according to the present invention.
Fig. 7 is a schematic cross-sectional structure diagram of the fixing head of the present invention.
Fig. 8 is a schematic cross-sectional structure view of the friction head of the present invention.
In the figure: the wire harness connector comprises a base 1, an arc extinguishing block 2, a contact concentration block 3, a connecting pipe 4, a cavity 41, a circuit pipe 42, a connecting port 43, a connecting pipe body 44, a connecting block 441, a contact fixing end 442, a cable through hole 443, a wire clamping block 444, a traction block 445, a wire clamping body a1, a clamping block a2, a clamping body a3, a wire clamping hole a4, a fixing block a5, a wire clamping head a11, a thread block a12, a deformation groove a13, a groove a51, a return spring a52, an expansion block a53, a fixing head a54, a fixing body b1, a suction cup b2, a vent pipe b3, an empty groove b4, an elastic sheet b5, a friction head b6, a friction body b61, a mounting groove 62, a mounting seat b63 and a rubber strip b 64.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The first embodiment is as follows: referring to fig. 1-5, the embodiments of the present invention are as follows:
its structure includes that base 1, arc extinguishing piece 2, contact concentrate piece 3, connecting pipe 4, the welding of base 1's top front end has arc extinguishing piece 2, the concentrated piece 3 of contact is equipped with threely, and transversely installs the rear end at base 1, connecting pipe 4 is equipped with six, and two liang of side of installing at the concentrated piece 3 of contact respectively, connecting pipe 4 includes cavity 41, circuit pipe 42, connection port 43, connecting tube body 44, cavity 41's inside is equipped with circuit pipe 42, connection port 43 locates cavity 41's side, and is linked together with circuit pipe 42, connecting tube body 44 threaded connection is in connection port 43.
The connecting tube 44 comprises a connecting block 441, a contact fixing end 442, a cable through hole 443, a wire clamping block 444 and a pulling block 445, the connecting block 441 is arranged at the rear end of the connecting tube 44 and connected with the connecting port 43, the contact fixing end 442 is arranged at the front end of the connecting block 441, the cable through hole 443 is arranged at the front end of the contact fixing end 442, the wire clamping block 444 is clamped in the cable through hole 443, the pulling block 445 is mounted on the outer surface of the front end of the connecting tube 44 through threads and is clamped with the wire clamping block 444, the diameter of the rear end of the wire clamping block 444 is larger than that of the connecting tube 44, the wire clamping block 444 is clamped in the pulling block 445, and the pulling block 445 drives the wire clamping block 444 to move towards the contact fixing end 442 through the rotation of the threads.
The wire clamping block 444 comprises a wire clamping body a1, a clamping block a2, a clamping body a3, a wire clamping hole a4 and a fixing block a5, wherein the clamping block a2 is arranged at the rear end of the wire clamping body a1, the clamping block a2 is clamped with a traction block 445, the clamping body a3 is in threaded connection with the outer end of the wire clamping body a1, the wire clamping hole a4 is formed in the inner end of the wire clamping body a1, the fixing block a5 is arranged at the rear end of the wire clamping hole a4, more than six fixing blocks a5 are arranged and surround the rear end of the wire clamping hole a4, the aperture of the front end of the clamping body a3 is gradually enlarged towards the rear end, the wire clamping body a1 is favorably squeezed, and the wire clamping body a1 fixes a cable.
The cable clamping body a1 comprises a cable clamping head a11, a thread block a12 and a deformation groove a13, the thread block a12 is arranged at the front end of the cable clamping head a11, two deformation grooves a13 are arranged and are located at the left end and the right end of the thread block a12, and the deformation grooves a13 are triangular, so that the deformation of the thread block a12 due to extrusion is facilitated, and a cable is extruded.
Based on the above embodiment, the specific working principle is as follows: the stripped cable is inserted into a wire clamping block 444 in a connecting pipe 4, the clamping body a3 is rotated, so that the clamping body a3 with a smaller aperture at the front end extrudes a wire clamping body a1, the wire clamping body a1 deforms through a deformation groove a13 to clamp the cable in a wire clamping hole a4, the cable is fixed in the wire clamping block 444, the traction block 445 is clamped with the clamping block a2, the traction block 445 is rotated to move on the surface of the connecting pipe body 44 through threads, the cable clamped in the wire clamping block 444 is moved to the tail end of a cable through hole 443 to be in contact with a contact fixed end 442, a circuit in the line pipe 42 is connected, the vacuum circuit breaker can protect the circuit, and the situation that the cable is overloaded or damaged due to short circuit is avoided.
Example two: referring to fig. 6-8, the embodiment of the present invention is as follows:
fixed block a5 includes recess a51, reset spring a52, flexible piece a53, fixed head a54, recess a 51's bottom is just middle to inlay and is had reset spring a52, reset spring a 52's top is connected with flexible piece a53, flexible piece a 53's both sides block is in recess a51, fixed head a54 inlays the top at flexible piece a53, recess a 51's port width is less than the bottom width of flexible piece a53, is favorable to flexible piece a53 to stretch out and draw back in recess a51, fixes the cable.
The fixing head a54 comprises a fixing body b1, sucking discs b2, an air pipe b3, an empty groove b4, elastic pieces b5 and a friction head b6, wherein the sucking discs b2 are arranged at two ends of the top of the fixing body b1, the air pipe b3 is U-shaped and connects the two sucking discs b2, the empty groove b4 is arranged in the middle of the two sucking discs b2, the two elastic pieces b5 are arranged and are crosswise arranged at the bottom of the empty groove b4, the friction head b6 is embedded and fixed at the top of the two elastic pieces b5, the length of the surface of the friction head b6 exposed out of the fixing body b1 is larger than the height of the sucking discs b2, the friction head b6 is beneficial to contact with a cable, the friction force is increased, and the cable is sucked through the sucking discs b 2.
The friction head b6 comprises a friction body b61, a mounting groove b62, a mounting seat b63 and a rubber strip b64, the bottom of the friction body b61 is in a V shape, the mounting groove b62 is provided with more than six, the friction body b63 is transversely arranged at the top of the friction body b61, the mounting seat b63 is provided with more than six and is mounted in a mounting groove b62, the rubber strip b64 is provided with more than six and is respectively mounted in the mounting seat b63, the orientation of the rubber strip b64 is inclined from the middle to two ends, the cable can reversely slide in the rubber strip b64, and the friction force between the cable and the rubber strip b64 can be increased.
Based on the above embodiment, the specific working principle is as follows: reset through reset spring a52 and drive flexible piece a53 and push up, make fixed head a54 of installing on flexible piece a53 can contact with the cable, it sets up the height that is greater than sucking disc b2 to expose the length on fixed body b1 surface with friction head b6, make the cable contact with friction head b6 earlier, friction head b6 resets through the elastic sheet b5 of cross-arrangement and drives and pushes up, thereby increase and push up with the cable between the frictional force, adsorb the surface at the cable through sucking disc b2, increase the cable and receive lateral shifting's resistance, utilize rubber strip b64 and the cable that inclines to both ends by the centre at last and contact, thereby increase again and the cable between the frictional force, avoid the cable installation unstability, the condition that drops appears.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a vacuum circuit breaker, its structure includes that base (1), arc extinguishing piece (2), contact concentrate piece (3), connecting pipe (4), the welding of the top front end of base (1) has arc extinguishing piece (2), the concentrated piece of contact (3) are equipped with threely, and transversely install the rear end at base (1), connecting pipe (4) are equipped with six, and two liang of side of installing in the concentrated piece of contact (3) respectively, its characterized in that:
the connecting pipe (4) comprises a cavity (41), a line pipe (42), a connecting port (43) and a connecting pipe body (44), the line pipe (42) is arranged inside the cavity (41), the connecting port (43) is arranged at the side end of the cavity (41) and communicated with the line pipe (42), and the connecting pipe body (44) is in threaded connection with the connecting port (43).
2. A vacuum interrupter as claimed in claim 1, characterized in that: the connecting pipe body (44) comprises a connecting block (441), a contact fixing end (442), a cable through hole (443), a wire clamping block (444) and a traction block (445), the connecting block (441) is arranged at the rear end of the connecting pipe body (44) and is connected with a connecting port (43), the contact fixing end (442) is arranged at the front end of the connecting block (441), the cable through hole (443) is arranged at the front end of the contact fixing end (442), the wire clamping block (444) is clamped in the cable through hole (443), and the traction block (445) is installed on the outer surface of the front end of the connecting pipe body (44) through threads and is mutually clamped with the wire clamping block (444).
3. A vacuum interrupter as claimed in claim 2, characterized in that: the wire clamping block (444) comprises a wire clamping body (a1), a clamping block (a2), a clamping body (a3), a wire clamping hole (a4) and a fixing block (a5), wherein the clamping block (a2) is arranged at the rear end of the wire clamping body (a1), the clamping block (a2) is clamped with a traction block (445), the clamping body (a3) is in threaded connection with the outer end of the wire clamping body (a1), the wire clamping hole (a4) is formed in the inner end of the wire clamping body (a1), the fixing block (a5) is formed in the rear end of the wire clamping hole (a4), and the fixing block (a5) is provided with more than six and is arranged around the rear end of the wire clamping hole (a 4).
4. A vacuum interrupter as claimed in claim 3, characterized in that: the wire clamping body (a1) comprises a wire clamping head (a11), a thread block (a12) and a deformation groove (a13), wherein the thread block (a12) is arranged at the front end of the wire clamping head (a11), and two deformation grooves (a13) are arranged and are positioned at the left end and the right end of the thread block (a 12).
5. A vacuum interrupter as claimed in claim 3, characterized in that: the fixed block (a5) comprises a groove (a51), a return spring (a52), a telescopic block (a53) and a fixed head (a54), wherein the inherent return spring (a52) is embedded in the middle of the bottom of the groove (a51), the top end of the return spring (a52) is connected with the telescopic block (a53), the two sides of the telescopic block (a53) are clamped in the groove (a51), and the fixed head (a54) is embedded and fixed at the top end of the telescopic block (a 53).
6. A vacuum interrupter as claimed in claim 5, wherein: fixed head (a54) is including fixed body (b 1), sucking disc (b2), breather pipe (b3), dead slot (b4), elastic sheet (b5), friction head (b6), the top both ends of fixed body (b 1) are equipped with sucking disc (b2), breather pipe (b3) is the U-shaped, and is connected two sucking discs (b2), dead slot (b4) sets up the centre at two sucking discs (b2), elastic sheet (b5) are equipped with two, and cross-arrangement in the bottom of dead slot (b4), friction head (b6) are inlayed and are fixed at the top of two elastic sheets (b 5).
7. A vacuum interrupter as claimed in claim 6, characterized in that: the friction head (b6) comprises a friction body (b61), a mounting groove (b62), a mounting seat (b63) and a rubber strip (b64), wherein the bottom of the friction body (b61) is V-shaped, the mounting groove (b62) is provided with more than six, the mounting groove (b62) is transversely arranged at the top of the friction body (b61), the mounting seat (b63) is provided with more than six and is mounted in the mounting groove (b62), and the rubber strip (b64) is provided with more than six and is respectively mounted in the mounting seat (b 63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010605365.2A CN111627747A (en) | 2020-06-29 | 2020-06-29 | Vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010605365.2A CN111627747A (en) | 2020-06-29 | 2020-06-29 | Vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111627747A true CN111627747A (en) | 2020-09-04 |
Family
ID=72272252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010605365.2A Withdrawn CN111627747A (en) | 2020-06-29 | 2020-06-29 | Vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111627747A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1041593A2 (en) * | 1999-04-01 | 2000-10-04 | Mitsubishi Denki Kabushiki Kaisha | Switch gear and power switching apparatus |
| CN101930870A (en) * | 2010-08-17 | 2010-12-29 | 郑文秀 | Three-phase three-station cable-isolating connector fully-shielded vacuum breaker |
| CN102522253A (en) * | 2011-12-02 | 2012-06-27 | 泉州七星电气有限公司 | Improved vacuum circuit-breaker pole |
| CN105304399A (en) * | 2015-12-02 | 2016-02-03 | 何亮 | Integrated miniature high voltage vacuum circuit breaker |
| CN106128886A (en) * | 2016-06-28 | 2016-11-16 | 周骆平 | A kind of chopper and the vacuum interrupter for chopper |
| CN205692778U (en) * | 2016-05-06 | 2016-11-16 | 王明晟 | A kind of convenient power circuit breaker installed |
| CN206282744U (en) * | 2016-12-28 | 2017-06-27 | 杭州尚美电气有限公司 | Primary cut-out |
| CN108847603A (en) * | 2018-07-26 | 2018-11-20 | 国网山东省电力公司莱芜供电公司 | A kind of protective device of charged for replacement leakage circuit breakers |
| CN110752569A (en) * | 2019-10-29 | 2020-02-04 | 庄静红 | Mounting seat for high-altitude fixing of flexible mineral insulated cable |
-
2020
- 2020-06-29 CN CN202010605365.2A patent/CN111627747A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1041593A2 (en) * | 1999-04-01 | 2000-10-04 | Mitsubishi Denki Kabushiki Kaisha | Switch gear and power switching apparatus |
| CN101930870A (en) * | 2010-08-17 | 2010-12-29 | 郑文秀 | Three-phase three-station cable-isolating connector fully-shielded vacuum breaker |
| CN102522253A (en) * | 2011-12-02 | 2012-06-27 | 泉州七星电气有限公司 | Improved vacuum circuit-breaker pole |
| CN105304399A (en) * | 2015-12-02 | 2016-02-03 | 何亮 | Integrated miniature high voltage vacuum circuit breaker |
| CN205692778U (en) * | 2016-05-06 | 2016-11-16 | 王明晟 | A kind of convenient power circuit breaker installed |
| CN106128886A (en) * | 2016-06-28 | 2016-11-16 | 周骆平 | A kind of chopper and the vacuum interrupter for chopper |
| CN206282744U (en) * | 2016-12-28 | 2017-06-27 | 杭州尚美电气有限公司 | Primary cut-out |
| CN108847603A (en) * | 2018-07-26 | 2018-11-20 | 国网山东省电力公司莱芜供电公司 | A kind of protective device of charged for replacement leakage circuit breakers |
| CN110752569A (en) * | 2019-10-29 | 2020-02-04 | 庄静红 | Mounting seat for high-altitude fixing of flexible mineral insulated cable |
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200904 |
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| WW01 | Invention patent application withdrawn after publication |