CN2904261Y - Large current isolator and converting isolator - Google Patents
Large current isolator and converting isolator Download PDFInfo
- Publication number
- CN2904261Y CN2904261Y CN 200620039054 CN200620039054U CN2904261Y CN 2904261 Y CN2904261 Y CN 2904261Y CN 200620039054 CN200620039054 CN 200620039054 CN 200620039054 U CN200620039054 U CN 200620039054U CN 2904261 Y CN2904261 Y CN 2904261Y
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- pedestal
- contact knife
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- operating mechanism
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Abstract
A high current disconnector, comprises a pedestal, a pair of switches parallel equipped on the pedestal and a link gear, a tie rod and an operation mechanism. Each switch is made up of a contact cutter and a static contact, while the link gear consists of joint shafts between the contact cutters and a lever connected with the joint shafts. One side of the tie rod is connected with the lever and the other side with the operation mechanism. A high current change over disconnector comprises a pedestal, a pair of switches parallel arranged on the pedestal and a link gear, a tie rod and an operation mechanism. Each switch comprises two static contact equipped at intervals on the two sides of the pedestal and the contact cutters between the two static contact, while the link gear comprises joint shafts between the pair of the contact cutter, a transmission shaft at the bottom of the pedestal and a level connecting the joint shafts and the transmission shaft. One side of the tie rod is connected with the lever and the other side with the operation mechanism.
Description
Technical field
The utility model relates to a kind of low-voltage variation electrical equipment, relates in particular to a kind of isolator and conversion isolator of big current specification.
Background technology
Low-voltage distribution system in industrial and mining enterprises, and in the equipment such as metallurgy, electrolysis, plating, subway, urban track traffic, rectification, usually under the no-load situation with circuit and isolated from power, perhaps in the two-way circuit, do conversion and isolate, therefore need to use isolator and conversion isolator.Isolator and conversion isolator generally are installed in these equipment simultaneously, are used.Existing a kind of isolator comprises pedestal, contact knife, fixed contact and operating mechanism, by operating mechanism operation contact knife and fixed contact deciliter, existing a kind of conversion isolator comprises pedestal, contact knife, two fixed contacts and operating mechanism, is switched between two fixed contacts by operating mechanism operation contact knife.Because isolator and conversion isolator directly are connected in the big current circuit, therefore to electric conductivity, heat conductivility, mechanical strength and reliability by very high requirement.The HD13 open type knife switch of domestic production at present and use amount maximum, HD17S isolator, maximum current capacity are 1600A, this isolator is because structural limitations, the general occasion of voltage at 690V that only be used for, and stability and reliability are lower can't adapt to the more requirement of high voltage and electric current.
Summary of the invention
The utility model provides a kind of reliable and stable big galvanic separation and conversion isolator that is applicable to big current applications for solving the problems of the technologies described above.
The utility model is to solve the problems of the technologies described above the technical scheme that adopts to provide a kind of big galvanic separation, comprise a pedestal, side by side be located at pair of switches on the pedestal, also comprise a link gear, a pull bar and an operating mechanism; Described switch respectively comprises a contact knife and a fixed contact; Described link gear comprises a universal driving shaft between the contact knife that is connected pair of switches and a lever that is connected with described universal driving shaft; Described pull bar one end is connected with described lever, and the other end is connected with described operating mechanism.
Described big galvanic separation, the contact knife of wherein said each switch is made of the two relative blade parallel connections in interval, and when described big galvanic separation was closed, described blade clamped described fixed contact respectively in both sides.
Described big galvanic separation is installed with a sheet spring respectively on two blades of wherein said contact knife.
Described big galvanic separation, wherein said springs by bolted on the blade of described contact knife.
Described big galvanic separation, wherein said operating structure comprise a pedestal, are located at handle and latching device on the pedestal; Described latching device is made of with a locking bolt that is mated a tapered end of being located on the pedestal, and described locking bolt is located at described handle one side and can be cooperated with tapered end handle is fastened.
The utility model also provides a kind of big current conversion isolator, comprises a pedestal, is located at pair of switches on the pedestal side by side, also comprises a link gear, a pull bar and an operating mechanism; Described switch respectively comprises at interval to be located at two fixed contacts at pedestal two ends and to be located at contact knife between described two fixed contacts; Described link gear comprises universal driving shaft between the contact knife that is connected pair of switches, is located at power transmission shaft on the pedestal of described contact knife below and the lever that connects described universal driving shaft and power transmission shaft; Described pull bar one end is connected with described universal driving shaft, and the other end is connected with described operating mechanism.
Described big current conversion isolator, wherein said contact knife respectively by two at interval relative blade parallel connections constitute, when described big current conversion disconnector, described blade clamps one of described two fixed contacts respectively in both sides.
Described big current conversion isolator is arranged a plurality of contacts respectively on two blades of wherein said contact knife.
Described big current conversion isolator, wherein said operating structure comprise a pedestal, are located at handle and latching device on the pedestal; Described latching device is made of with a locking bolt that is mated a tapered end of being located on the pedestal, and described locking bolt is located at described handle one side and can be cooperated with tapered end handle is fastened.
Owing to adopt said structure, big galvanic separation of the present utility model is reasonable with big current conversion spacer structures, capacity big, stable performance, easy for installation, can be used for the big current applications in the equipment such as metallurgy, electrolysis, plating, subway, urban track traffic, rectification, be particularly suitable for rated operational voltage 1000V and direct-current working volts 1500V, big galvanic separation rated current 3150A, big current conversion isolator rated current 4000A.
Description of drawings
Below in conjunction with description of drawings embodiment of the present utility model, wherein:
Fig. 1 is the overall structure schematic diagram of an embodiment of the big galvanic separation of the utility model;
Fig. 2 is a right view embodiment illustrated in fig. 1;
Fig. 3 is a link gear structural representation embodiment illustrated in fig. 1;
Fig. 4 is the structural representation of an embodiment of the big current conversion isolator of the utility model;
Fig. 5 is a right view embodiment illustrated in fig. 4;
Fig. 6 is a link gear structural representation embodiment illustrated in fig. 4;
Fig. 7 is a movable touch knife structural representation embodiment illustrated in fig. 4.
Embodiment
See also Fig. 1 and Fig. 2, the big galvanic separation of the utility model comprises that a pedestal 10, pair of switches 11 and link gear 15, operating mechanism 16 and the pull bar 17 be located on the pedestal 10 side by side constitute.
In the present embodiment, said base adopts DMC-2 unsaturated polyester fiber reinforced plastic materials, has improved mechanical strength, thermal endurance and the insulating properties of pedestal 10.
Switch 11 is made of a fixed contact 12 and a contact knife 14.Contact knife 14 is made of the two relative blade 14a parallel connections in interval.When contact knife 14 closures contacted with fixed contact 12, two groups of blade 14a of contact knife 14 were distributed in fixed contact 12 both sides, clamp fixed contact 12.Respectively be provided with springs 14b on each blade 14a, 14c fixes by bolt, by regulating the pressure of bolt 14c degree of tightness adjustable springs 14b.When electrical network is short-circuited,, thereby can obtain the stability of higher short time withstand current because the coupling mechanism force that the spring leaf 14b between two blades in parallel produces has compensated the repulsion of contact.
As shown in Figure 3, link gear 15 comprises universal driving shaft 15a and lever 15b.Wherein universal driving shaft 15a is connected between the contact knife 14 of pair of switches 11, and lever 15b is made of two connecting rods that are rotationally connected, and lever 15b one end connects universal driving shaft 15a, the pull bar 17 of other end attended operation mechanism.Link gear 15 can make two contact knife 14 foldings together simultaneously by universal driving shaft 15a; Simultaneously two fixed contacts 12 are connected with power line, and two contact knifes 14 pass through universal driving shaft 15a and are connected with load line, like this, two path parallel connections at two contact knifes, 14 places, their parallel circuits the electric current that can pass through increase and be twice.
Link gear 15 is connected on the operating mechanism 16 by pull bar 17, by the folding of operating mechanism 16 operations two contact knifes 14.Operating mechanism 16 comprises a pedestal 16a and one handle 16b.Pull bar 17 1 ends are connected with the handle 16b of operating mechanism 16, and the other end is connected with the lever 15b of link gear 15 by pedestal 10 back sides.When pulling the handle 16b of operating mechanism 16, pull bar 17 is subjected to pulling force to drive lever 15b, drives contact knife 14 actions by lever 15b, realizes folding.
For preventing that unrelated person from carrying out breaking-closing operating, in the present embodiment, also be provided with latching device (figure does not show) on the operating mechanism 16, this buckle structure comprises a tapered end and a locking bolt, and this tapered end is fixed on the pedestal 16a, and this locking bolt is located at handle one side.When tapered end with key lock on the time, locking bolt can fasten handle 16b, makes its akinesia, guarantees to have only the staff just can operate, and guarantees the reliability of short time withstand current simultaneously.
See also Fig. 4 and Fig. 5, big current conversion isolator of the present utility model and big galvanic separation similar, the contact knife structure of different is big current conversion isolator is two-way.This big current conversion isolator comprises pedestal 20, is located at pair of switches 21 on the pedestal 20, also comprises link gear 26, pull bar 27 and operating mechanism 28.Each switch 21 comprises two fixed contacts 23,24 of being located at pedestal two ends about in the of 20 respectively and is located at a contact knife 22 between two fixed contacts 23,24.The contact knife of contact knife 22 is V-shaped, and its both sides can be realized switching in turn in two fixed contacts 23,24 closures or disconnections.
The above-mentioned fixed contact 23 of being located at pedestal 20 upper ends can be connected with main power source, and the fixed contact 24 of being located at pedestal 20 lower ends can be connected with back-up source, and contact knife 22 can be connected with load line.
Each contact knife of contact knife 22 is made of 2 blade 22a parallel connection, and when contact knife 22 closures contacted with fixed contact 23 or fixed contact 24,2 blade 22a of contact knife 22 each contact knife were distributed in fixed contact 23 or fixed contact 24 both sides, clamp fixed contact 23 or fixed contact 24.Each blade among the blade 22a is respectively equipped with springs 22b, and 22c fixes by bolt, by regulating the pressure of bolt 22c degree of tightness adjustable springs 22b.In addition, on blade, also be distributed with a plurality of mushroom contact 22d, as shown in Figure 7.When electrical network is short-circuited,, thereby can obtain the stability of higher short time withstand current because the coupling mechanism force that the spring leaf 22b between the two blade 22a in parallel produces has compensated the repulsion of contact.
See also Fig. 6, link gear 26 comprises universal driving shaft 26a, power transmission shaft 26b and lever 26c.Wherein universal driving shaft 15a is connected between the contact knife 22 of pair of switches 21, and power transmission shaft 26b is located on the contact knife 22 below pedestals 20, and lever 26c is made of two connecting rods that are rotationally connected, and lever 15c connects universal driving shaft 26a and power transmission shaft 26b.Link gear 26 can make two contact knife 22 foldings together simultaneously by universal driving shaft 26a; Simultaneously because fixed contact 23 is connected with main power line, and fixed contact 24 is connected with back-up source, contact knife 22 passes through universal driving shaft 26a and is connected with load line, like this, two path parallel connections at two contact knifes, 22 places, their parallel circuits the electric current that can pass through increase and be twice.
Link gear 26 is connected on the operating mechanism 28 by pull bar 27, by 22 foldings of operating mechanism 27 operations two contact knifes.Operating mechanism 28 comprises a pedestal 28a and one handle 28b.Pull bar 27 1 ends are connected with the handle 28b of operating mechanism 28, and the other end is connected with universal driving shaft 26b by pedestal 20 back sides.When pulling the handle 28b of operating mechanism 28, pull bar 27 is rotated by pulling force drive power transmission shaft 26b, drives contact knife 22 actions by lever 26c, switches in turn 23,24 of two fixed contacts.
For preventing that unrelated person from carrying out breaking-closing operating, also be provided with latching device (figure does not show) on the operating mechanism 28, this buckle structure comprises a tapered end and a locking bolt, and this tapered end is fixed on the pedestal 28a, and this locking bolt is located at handle one side.When tapered end with key lock on the time, locking bolt can fasten handle 28b, makes its akinesia, guarantees to have only the staff just can operate, and guarantees the reliability of short time withstand current simultaneously.
Claims (10)
1. a big galvanic separation is characterized in that, comprise a pedestal, side by side be located at pair of switches on the pedestal, also comprise a link gear, a pull bar and an operating mechanism; Described switch respectively comprises a contact knife and a fixed contact; Described link gear comprises a universal driving shaft between the contact knife that is connected pair of switches and a lever that is connected with described universal driving shaft; Described pull bar one end is connected with described lever, and the other end is connected with described operating mechanism.
2. big galvanic separation as claimed in claim 1 is characterized in that, the contact knife of described each switch is made of the two relative blade parallel connections in interval, and when described big galvanic separation was closed, described blade clamped described fixed contact respectively in both sides.
3. big galvanic separation as claimed in claim 2 is characterized in that, is installed with a sheet spring on two blades of described contact knife respectively.
4. big galvanic separation as claimed in claim 3 is characterized in that, described springs by bolted on the blade of described contact knife.
5. big galvanic separation as claimed in claim 1 is characterized in that, described operating mechanism comprises a pedestal, is located at handle and latching device on the pedestal; Described latching device is made of a tapered end and a locking bolt of being located on the pedestal, and described locking bolt is located at described handle one side and can be cooperated with tapered end handle is fastened.
6. one kind big current conversion isolator is characterized in that, comprises a pedestal, is located at pair of switches on the pedestal side by side, also comprises a link gear, a pull bar and an operating mechanism; Described switch respectively comprises at interval to be located at two fixed contacts at pedestal two ends and to be located at contact knife between described two fixed contacts; Described link gear comprises universal driving shaft between the contact knife that is connected pair of switches, is located at power transmission shaft on the pedestal of described contact knife below and the lever that connects described universal driving shaft and power transmission shaft; Described pull bar one end is connected with described universal driving shaft, and the other end is connected with described operating mechanism.
7. big current conversion isolator as claimed in claim 6 is characterized in that, described contact knife respectively by two at interval relative blade parallel connections constitute, when described big current conversion disconnector, described blade clamps one of described two fixed contacts respectively in both sides.
8. big galvanic separation as claimed in claim 7 is characterized in that, is installed with a sheet spring on two blades of described contact knife respectively.
9. big current conversion isolator as claimed in claim 7 is characterized in that, arranges a plurality of contacts respectively on two blades of described contact knife.
10. big current conversion isolator as claimed in claim 6 is characterized in that, described operating mechanism comprises a pedestal, is located at handle and latching device on the pedestal; Described latching device is made of with a locking bolt that is mated a tapered end of being located on the pedestal, and described locking bolt is located at described handle one side and can be cooperated with tapered end handle is fastened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039054 CN2904261Y (en) | 2006-01-19 | 2006-01-19 | Large current isolator and converting isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039054 CN2904261Y (en) | 2006-01-19 | 2006-01-19 | Large current isolator and converting isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2904261Y true CN2904261Y (en) | 2007-05-23 |
Family
ID=38079674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620039054 Expired - Lifetime CN2904261Y (en) | 2006-01-19 | 2006-01-19 | Large current isolator and converting isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2904261Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103155077A (en) * | 2010-10-08 | 2013-06-12 | 施耐德电气美国股份有限公司 | Dual breaking point electrical joint |
| CN106710935A (en) * | 2017-01-06 | 2017-05-24 | 杨晓江 | Low-voltage fuse disconnecting switch |
| CN108597934A (en) * | 2018-05-23 | 2018-09-28 | 苏州上电科电气设备有限公司 | A kind of high current inverse parallel disconnecting link |
-
2006
- 2006-01-19 CN CN 200620039054 patent/CN2904261Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103155077A (en) * | 2010-10-08 | 2013-06-12 | 施耐德电气美国股份有限公司 | Dual breaking point electrical joint |
| CN103155077B (en) * | 2010-10-08 | 2016-09-07 | 施耐德电气美国股份有限公司 | Double breaking points electrical connector |
| CN106710935A (en) * | 2017-01-06 | 2017-05-24 | 杨晓江 | Low-voltage fuse disconnecting switch |
| CN108597934A (en) * | 2018-05-23 | 2018-09-28 | 苏州上电科电气设备有限公司 | A kind of high current inverse parallel disconnecting link |
| CN108597934B (en) * | 2018-05-23 | 2023-07-07 | 上科智能电气(苏州)有限公司 | Heavy-current anti-parallel disconnecting link |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070523 |
|
| EXPY | Termination of patent right or utility model |