CN101807499B - Automatic quick-closing switch - Google Patents
Automatic quick-closing switch Download PDFInfo
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- CN101807499B CN101807499B CN200910051163A CN200910051163A CN101807499B CN 101807499 B CN101807499 B CN 101807499B CN 200910051163 A CN200910051163 A CN 200910051163A CN 200910051163 A CN200910051163 A CN 200910051163A CN 101807499 B CN101807499 B CN 101807499B
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Abstract
The invention discloses an automatic quick-closing switch, which comprises an opening motor, an arc extinguisher, a clapper electromagnet, an electromagnet coil, an electromagnet coil leading-out block, a square shaft, a switch terminal block, an auxiliary switch, a main contact leading-out block and a closing coil. The opening motor is fixed on one side of a rectangular frame; both ends of the arc extinguisher are fixed on the frame with screws; the clapper electromagnet is fixed on a chassis with screws; the electromagnet coil is wound around the clapper electromagnet; the electromagnet coil leading-out block is connected with the electromagnet; both ends of the square shaft are embedded into two side plates of the frame; the switch terminal block and the auxiliary switch are arranged on both sides of the opening motor and are fixed on the frame with screws respectively; the main contact leading-out block is fixed below the opening motor with screws; and the closing coil is fixed on one side of the inside of the frame with screws. Due to the structure, when a power system fails, a switch main contact can close quickly, and a high current can pass through the main contact and be grounded directly, so the safe and stable operation of the power system is ensured.
Description
Technical field
The present invention relates to a kind of field of switches of electrical apparatus control equipment, particularly a kind of automatic quick-closing switch.
Background technology
When electric power system is broken down; It mainly is the bypass protection that alternating current-direct current mixes overcurrent in the transmission of electricity electrical network; When direct current transportation one pole the earth moved, the earth electrode current flowed into AC system through the transformer neutral point of AC system, and AC transmission system is produced influence in various degree.
The switch of prior art all is under switch main contact "on" position, to work, when running into like above-mentioned fault, and the disengagement failure electric current, the structure of this switch combined floodgate of main contact is generally speaking accomplished by motor, and separating brake is accomplished with the shunt opening coil.Such design makes electric power system cisco unity malfunction when running into fault, and this kind construction of switch is not compact, and volume is bigger.
Summary of the invention
For solving the problems of the technologies described above, the present invention provides a kind of automatic quick-closing switch, and when its structural design made its operate as normal, main contact was gate-dividing state; When running into fault, make main contact closed rapidly, short circuit current passes through from main contact, flows into earth point and eliminates; And the present invention separates main contact with the closing coil main contact that closes with motor, and is just opposite with prior art, makes the electric power system still can operate as normal when running into fault; Three-dimensional arrangement form, compact conformation, volume is little in light weight.
The present invention realizes through following technical scheme:
A kind of automatic quick-closing switch; Be included in the fixing separating brake motor of rectangular frame one side, two is fixed on the extinguisher on the said rectangular frame with screw, is fixed on the beating type electromagnet on the underframe with screw; Twine electromagnet coil around it; Draw row with the electromagnet coil that said beating type electromagnet is connected, two is embedded in the square shaft on the side plate of said rectangular frame two sides, is separately positioned on separating brake motor both sides and is fixed on switch terminal row and auxiliary switch on the said rectangular frame with screw; The main contact that is fixed on separating brake motor below with screw is drawn row, is fixed on the closing coil of the inner side of said rectangular frame with screw.
Said beating type electromagnet is made up of a U sections core and the armature by fixed thereon of screw, and a push rod also is set on armature, and electromagnet coil is wrapped on U sections core one side.
Said coil is processed by flat copper, and the number of turn is the 5-10 circle.
During said automatic quick-closing switch operate as normal, main contact is gate-dividing state, and when running into fault, main contact is closure state; With the closing coil main contact that closes, divide main contact with said separating brake motor.
Beneficial effect of the present invention is: this switch can effectively suppress the direct current of transformer neutral point, guarantees the safe and stable operation of transformer and AC system, when running into electric power system fault; But main contact rapid closing; Short circuit current passes through from main contact, flows into earth point and is destroyed, and closing time is less than 20ms; The electric current that passes through on the main contact can reach 40KA, and the duration can reach 300ms.
Description of drawings
Fig. 1 is the vertical view of automatic quick-closing switch.
Fig. 2 is the rearview of automatic quick-closing switch.
Fig. 3 is the front view of automatic quick-closing switch.
Fig. 4 is the end view of automatic quick-closing switch.
Fig. 5 is the structure chart of beating type electromagnet.
Embodiment
Like Fig. 1, be the vertical view of automatic quick-closing switch, as main frame, separating brake motor 1 of a side external stability of rectangular frame 11, separating brake motor 1 are used for switch-dividing to automatic quick-closing switch by a rectangular frame 11; Extinguisher 2, two is fixed on the rectangular frame 11 with screw, works as Power System Shortcuts, when overcurrent is very big; Extinguisher 2 has the effect of good extinguish arcs, and assurance system and staff's safety has a underframe 9 in the bottom of rectangular frame 11; Be used for fixing each part of switch, being fixed on screw has a beating type electromagnet 4 on the underframe 9, twines electromagnet coil 3 around it; Produce electromagnetic attraction through electric current, when fault current flows through coil, make beating type electromagnet 4 automatic adhesives; The electromagnet coil that is connected with beating type electromagnet 4 is drawn row 5 can derive switch external with electric current, all is embedded in the square shaft 6 on the rectangular frame 11 two sides side plates in that a two also is set on the rectangular frame 11, and its effect is to drive the switch main contact to close branch usefulness; Square shaft rotates flexibly, makes switch when running into fault, can quick-make; Be separately positioned on separating brake motor 1 both sides and be fixed on the auxiliary switch 8 in the rearview of switch terminal row 7 and Fig. 2 automatic quick-closing switch on the rectangular frame 11 with screw; Switch terminal row can the little line of external secondary; Increase the mechanical endurance of automatic quick-closing switch, auxiliary switch 8 is used for connecing signal to the user; The main contact that is fixed on separating brake motor 1 below with screw is drawn row, can use by external major loop; Be fixed on the closing coil 12 of rectangular frame 11 inner sides with screw, be used for running jointly closing and use.
Operation principle of this automatic quick-closing switch and former switch are completely different, and it all is under switch main contact "on" position, to work that the switch in past requires, and run into fault and promptly separately live contact; The disengagement failure electric current, and during this automatic quick-closing switch operate as normal, main contact is gate-dividing state; When running into fault, make main contact closed rapidly, short circuit current passes through from main contact; Inflow earth point and quilt are destroyed, thereby have guaranteed the safe and stable operation of system.
In view of above-mentioned principle, this automatic quick-closing switch has designed a beating type electromagnet, and the combined floodgate of prior art main contact is accomplished by motor; And separating brake uses the shunt opening coil to accomplish; This switch is just in time opposite, with closing coil 12 main contact that closes, opens main contact in 1 minute with the separating brake motor.Like Fig. 3 is the mechanism map of beating type electromagnet, is made up of a U sections core 14 and the armature 13 by fixed thereon of screw, and a push rod 15 also is set on armature; Electromagnet coil 3 is wrapped on U sections core one side, and coil method is a flat copper, and conductive effect is good; The number of turn is the 5-10 circle, and electromagnet coil 3 is connected on the silicon controlled output in the separating brake motor 1, when system short-circuit fault; Voltage surpasses quick bypass voltage in limited time, and controllable silicon is the conducting release current at first, makes the beating type electromagnet adhesive through big electric current in the electromagnet coil 3; Push rod 15 on the armature 13 beats the nylon spare that is fixed on the square shaft 6, and square shaft 6 is rotated, and makes the main contact rapid closing; Closing time is less than 20ms, and just in the moment of main contact closure, the earth electrode current is through the metallic direct ground connection of main contact; Guaranteed the safe and stable operation of system, the electric current that passes through on the main contact can reach 40KA.Duration can reach 300ms.
Claims (4)
1. automatic quick-closing switch; It is characterized in that being included in the fixing separating brake motor of rectangular frame one side, two is fixed on the extinguisher on the said rectangular frame with screw, is fixed on the beating type electromagnet on the underframe with screw; Twine electromagnet coil around it; Draw row with the electromagnet coil that said beating type electromagnet is connected, two is embedded in the square shaft on the side plate of said rectangular frame two sides, is separately positioned on separating brake motor both sides and is fixed on switch terminal row and auxiliary switch on the said rectangular frame with screw; The main contact that is fixed on separating brake motor below with screw is drawn row, is fixed on the closing coil of the inner side of said rectangular frame with screw.
2. automatic quick-closing switch as claimed in claim 1; It is characterized in that said beating type electromagnet is made up of a U sections core and the armature by fixed thereon of screw; A push rod also is set on armature, and electromagnet coil is wrapped on U sections core one side.
3. automatic quick-closing switch as claimed in claim 1 is characterized in that said electromagnet coil processed by flat copper, and the number of turn is the 5-10 circle.
4. automatic quick-closing switch as claimed in claim 1, when it is characterized in that said automatic quick-closing switch operate as normal, main contact is gate-dividing state, and when running into fault, main contact is closure state; With the closing coil main contact that closes, divide main contact with said separating brake motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910051163A CN101807499B (en) | 2009-05-14 | 2009-05-14 | Automatic quick-closing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910051163A CN101807499B (en) | 2009-05-14 | 2009-05-14 | Automatic quick-closing switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101807499A CN101807499A (en) | 2010-08-18 |
| CN101807499B true CN101807499B (en) | 2012-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910051163A Active CN101807499B (en) | 2009-05-14 | 2009-05-14 | Automatic quick-closing switch |
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| Country | Link |
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| CN (1) | CN101807499B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106180006B (en) * | 2016-08-31 | 2023-07-07 | 上海史密富智能装备股份有限公司 | Amorphous alloy iron core automatic detection device and detection method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2948021B2 (en) * | 1992-05-20 | 1999-09-13 | 松下電工株式会社 | Electric circuit breaker operating device |
| CN2548249Y (en) * | 2002-05-23 | 2003-04-30 | 江苏东源电器集团股份有限公司 | Indoor high-voltage vacuum circuit breaker |
| CN101266886A (en) * | 2007-11-01 | 2008-09-17 | 天水长城开关厂 | Spring operation mechanism for breaker |
| CN201436679U (en) * | 2009-05-14 | 2010-04-07 | 上海立新电器控制设备有限公司 | Fast-close automatic switch |
-
2009
- 2009-05-14 CN CN200910051163A patent/CN101807499B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2948021B2 (en) * | 1992-05-20 | 1999-09-13 | 松下電工株式会社 | Electric circuit breaker operating device |
| CN2548249Y (en) * | 2002-05-23 | 2003-04-30 | 江苏东源电器集团股份有限公司 | Indoor high-voltage vacuum circuit breaker |
| CN101266886A (en) * | 2007-11-01 | 2008-09-17 | 天水长城开关厂 | Spring operation mechanism for breaker |
| CN201436679U (en) * | 2009-05-14 | 2010-04-07 | 上海立新电器控制设备有限公司 | Fast-close automatic switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101807499A (en) | 2010-08-18 |
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| PB01 | Publication | ||
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Address after: 201600 Shanghai Songjiang District Chedun Town North Pine Road No. 6955 building 4 floor 1 Patentee after: Shanghai Lixin Electrical Appliance Control Equipment Co., Ltd. Address before: 201611 No. 6955 North Pine Road, Shanghai, Songjiang District Patentee before: Shanghai Lixin Electrical Appliance Control Equipment Co., Ltd. |