CN2687820Y - Automatic commutation switch - Google Patents
Automatic commutation switch Download PDFInfo
- Publication number
- CN2687820Y CN2687820Y CN 03270316 CN03270316U CN2687820Y CN 2687820 Y CN2687820 Y CN 2687820Y CN 03270316 CN03270316 CN 03270316 CN 03270316 U CN03270316 U CN 03270316U CN 2687820 Y CN2687820 Y CN 2687820Y
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- CN
- China
- Prior art keywords
- contact
- connecting rod
- iron core
- over
- automatic change
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- 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 - Lifetime
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to an automatic commutation switch, comprising a plurality of polarity units, an outer locking device, a rotating shaft, an active iron core, a still iron core and a coil. The outer locking device comprises a connecting rod, a resilient piece, a shaft and a rotating shaft which is connected with the device; when the controller detects that the voltage from a first power source conduct is lower or higher than the presetting value, the rotating shaft is tightly fixed by the resilient piece in the device; the rotating shaft is connected with the contact system of each polarity unit, and thus the contact point of each polarity unit is locked. The automatic commutation switch has the function that the contact point can be prevented from burning by the voltaic arc, the automatic commutation switch avoids that the first power source and a second power source are simultaneously closed, and the electrical life and the reliability of the automatic commutation switch are improved.
Description
Technical field
The utility model relates to a kind of automatic transfer switching equipment, belongs to the low-voltage electrical apparatus field.
Background technology
Automatic transfer switching electric appliance is mainly used in the dual power supply workplace of low-voltage distribution system, it is to have a power failure that this occasion requires for distribution system, when one road power supply breaks down as the phase failure, load is switched to rapidly on another phase power supply, to guarantee the continuous electricity consumption of power consumption equipment, avoid the device damage and the personal injury that produce because of fault.Simultaneously, in the dual power supply workplace of low-voltage distribution system, the raising of the electric life of automatic change-over also is a problem that needs emphasis to solve.
Summary of the invention
The electric arc that the purpose of this utility model produces when providing a kind of the reduced automatic change-over conversion that is used for automatic change-over is at the polarity unit of the dead time of contact surface.
Another purpose of the present utility model provides a kind of automatic change-over, and it is subjected to electrical arc erosion by locking each polarity unit contact to reducing the contact, and avoids simultaneously closed first and second power supply, improves the electric life and the reliability of automatic change-over.
For achieving the above object, the utility model is achieved in that
A kind of polarity unit that is used for automatic change-over, it comprises: the shell that non-conducting material is made; Be positioned at first power conductor of described shell both sides, the second source conductor, described first power conductor comprises the first power supply connecting plate and first power contact, described second source conductor comprises second source connecting plate and second source contact, and described shell insulate with the first power supply connecting plate, second source connecting plate and common load connecting plate on circuit; The magnetic that is installed in the described shell drives iron core; Be installed on the flash barrier in the described shell arc groove; The arc separating wall of flash barrier lower end and arc extinguishing grid pieces constitute arc control device, are arranged in the groove of described shell; Be installed in the contact system of described outer casing base.
A kind of automatic change-over, it comprises: a plurality of polarity units, described each polarity unit is arranged in parallel, and makes the hole alignment of its connecting rod separately; Outer locking device, it is consistent with the direction that the contact system of described each polarity unit is biased to that described outer locking device is biased to direction, and be installed in first side of automatic change-over; Rotating shaft, described rotating shaft hole and second side that extends to automatic change-over, the hole of each polarity unit by last connecting rod; Moving iron core, described moving iron core links to each other with rotating shaft by axle; Static iron core, described static iron core is relative with described moving iron core, and is fixed in the sidewall of automatic change-over; Coil is surrounded on described moving iron core and described static iron core.
The outer locking device of described automatic change-over comprises: connecting rod; Elastic component, described elastic component is sleeved in the connecting rod; Axle, elastic component is stated in described axle clamp residence, and described axle one end is fixed in the either side of the small of the back hole of connecting rod, and the described axle other end is contained in the clamping plate of described automatic change-over base.
The utlity model has of the effect of the electric arc of generation when reducing the automatic change-over conversion in the dead time of contact surface, have by locking each polarity unit contact reducing the effect that the contact is subjected to electrical arc erosion, have the effect of avoiding simultaneously closed first and second power supply, improve the electric life and the reliability of automatic change-over.
Description of drawings
Fig. 1 is the structural representation after a polarity unit of the present utility model is removed shell.
Location map when Fig. 2 is biased to first power conductor, one side for polarity unit
Location map when Fig. 3 is biased to second source conductor one side for polarity unit
Fig. 4 is the utility model automatic change-over overall structure schematic diagram.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and example.
Fig. 1～Figure 3 shows that embodiment of the present utility model.Fig. 1 is the structural representation after a polarity unit 80 of the utility model automatic change-over is removed shell 4, and described polarity unit 80 comprises: the shell 4 that non-conducting material is made; Be positioned at first power conductor of shell 4 both sides, second source conductor 2, wherein first power conductor comprises the first power supply connecting plate 7 and first power contact 8, the second source conductor comprises second source connecting plate and second source contact, and described shell insulate with the first power supply connecting plate 7, second source connecting plate and common load connecting plate 19 on circuit; The magnetic that is installed in the described shell drives iron core 6; Be installed on the flash barrier 5 in the described shell arc groove; The arc separating wall of flash barrier 5 lower ends and arc extinguishing grid pieces constitute arc control device 3, are arranged in the groove of described shell; Be installed in the contact system 1 of described outer casing base.
The contact system 1 of described polarity unit comprises: contact 9; Contact 10; Connecting rod 12; 12 on described contact 10 and described connecting rod are laid 2 elastic components 11; The axle 14 and the locating shaft 17 of fixing described contact 10, described connecting rod 12 and described elastic component 11; By described axle 14 connecting rods 13 that link to each other with described connecting rod 15, clamp with split washer; The flexible connection 18 that links to each other with contact 10 by the locating shaft 17 that is installed on the shell; The connecting plate 19 that links to each other with described flexible connection 18.
Wherein, contact 10 forms with 18 spot welding of described connecting plate 19 usefulness flexible connections in the described contact system 1, and contact 10 forms with contact 9 solderings.
Wherein, the center-aligned in the hole of the center in the hole 16 of the connecting rod 13 that non-conductive material is made in the described contact system 1 and shell 4.
Wherein, the contact 10 in the described contact system 1 uses several pieces contacts according to the rated current of automatic change-over, and make it and.
First power conductor described in the described polarity unit 80 and described second source conductor 2 all adopt U type contact.
At the polarity unit duration of work, the hole of hole 16 and polarity unit is passed in the rotating shaft of automatic change-over.When this rotating shaft is biased to first power conductor, one side, when being Fig. 2 position, it is right that first contact 9 and first power contact 8 form first contact, owing on the contact 10 elastic component 11 is housed, so first contact during to closure the contact less to wearing and tearing, when this rotating shaft is biased to second source conductor one side, promptly during Fig. 3 position, opened 9,8 minutes first contact, and second contact is to closure.Because described first power conductor and second source conductor 2 all adopt U type contact, add the effect that magnetic drives iron core 6, the electric arc that this device produces in the time of can reducing the automatic change-over conversion is in the dead time of contact surface, thereby alleviate the scaling loss of electric arc, can improve the electric life of automatic change-over contact surface.
Figure 4 shows that another embodiment of the present utility model.That is, a kind of automatic change-over 90, it comprises: a plurality of polarity units 80, described each polarity unit is arranged in parallel, and makes hole 16 alignment of its connecting rod 13 separately; Outer locking device, it is consistent with the direction that the contact system of described each polarity unit is biased to that described outer locking device is biased to direction, and be installed in first side 100 of automatic change-over 90; Rotating shaft 23, described rotating shaft hole and second side 110 that extends to automatic change-over, the hole 16 of each polarity unit 80 by last connecting rod 25; Moving iron core 22, described moving iron core links to each other with rotating shaft 23 by axle 24; Static iron core 21, described static iron core is relative with described moving iron core, and is fixed in the sidewall of automatic change-over 90; Coil 20 is surrounded on described moving iron core and described static iron core.
Described outer locking device comprises: connecting rod 27; Elastic component 28,29, described elastic component are sleeved in the connecting rod 27; Axle 26, axle 30, elastic component is stated in described axle clamp residence, and described axle 26 is fixed in the either side of the small of the back hole of connecting rod 25, and described axle 30 is contained in the clamping plate 31 of described automatic change-over base.
When controller detection to the voltage from the first power supply connecting plate 7 is below or above desired value, controller impels coil 20 startups that iron core 22 is moved to stationary contact iron core 21 directions, because moving iron core 22 connects together with rotating shaft 23, the axle 26 of outer locking device is fixed in the either side of the small of the back hole of connecting rod 25, therefore when moving iron core 22 when static iron core 21 directions are moved, last connecting rod 25 rotates to the second source direction by axle 26 pulling connecting rods 27, at this moment, elastic component 28,29 are compressed, when last connecting rod 25 be biased to the second source contact to and finish be biased to action after because elastic component 28,29 will resile and rebound axle 26 together with jail, last connecting rod 25 top.As do not have under the external force effect, axle 26 will overcome a gradient when returning, therefore can not produce return bullet and with second contact to tightly pinning.When the second source connecting plate is electrically connected with common load connecting plate 19; when short circuit or over-current state; owing to cooperated outer locking device; the contact is protected and avoids round electric arc and damage; add U type contact and cooperating that magnetic drives in the polarity unit 80; protect the damage of contact surface more, also avoided simultaneously closed first, second power supply simultaneously.
Claims (8)
1, a kind of polarity unit that is used for automatic change-over is characterized in that containing:
Shell (4);
Be positioned at first power conductor of shell (4) both sides, second source conductor (2), wherein first power conductor comprises the first power supply connecting plate (7) and first power contact (8), the second source conductor comprises second source connecting plate and second source contact, and described shell insulate with the first power supply connecting plate (7), second source connecting plate and common load connecting plate (19) on circuit;
The magnetic that is installed in the described shell drives iron core (6);
Be installed on the flash barrier (5) in the described shell arc groove;
The arc separating wall of flash barrier (5) lower end and arc extinguishing grid pieces constitute arc control device (3), are arranged in the groove of described shell;
Be installed in the contact system (1) of described outer casing base.
2, polarity unit according to claim 1 is characterized in that described contact system (1) comprising: contact (9); Contact (10); Connecting rod (12); Lay several elastic components (11) between contact (10) and connecting rod (12); The axle (14) of fixed contact (10), connecting rod (12), elastic component (11) and locating shaft (17); Connecting rod (13) by axle (14) links to each other with connecting rod (15) clamps with split washer; The flexible connection (18) that links to each other with contact (10) by the locating shaft (17) that is installed on the shell; The connecting plate (19) that links to each other with flexible connection (18).
3, polarity unit according to claim 2 is characterized in that contact (10) forms with flexible connection (18) spot welding with common load connecting plate (19) in the described contact system (1), and contact (10) forms with contact (9) soldering.
4, polarity unit according to claim 2 is characterized in that the center-aligned in the hole of the center in hole (16) of the connecting rod (13) that non-conductive material is made in the described contact system (1) and shell (4).
5, polarity unit according to claim 2 is characterized in that the mode that the contact (10) in the described contact system (1) can not adopt different sheets to count contact and get up in the rated current of automatic change-over simultaneously.
6, polarity unit according to claim 1 is characterized in that described first power conductor and described second source conductor (2) all adopt U type contact.
7, a kind of automatic change-over, it comprises:
A plurality of polarity units (80), described each polarity unit is arranged in parallel, and makes hole (16) alignment of its connecting rod (13) separately;
Outer locking device, it is consistent with the direction that the contact system of described each polarity unit is biased to that described outer locking device is biased to direction, and be installed in first side (100) of automatic change-over (90);
Rotating shaft (23), described rotating shaft hole and second side 110 that extends to automatic change-over, the hole 16 of each polarity unit 80 by last connecting rod 25;
Moving iron core (22), described moving iron core links to each other with rotating shaft (23) by axle (24);
Static iron core (21), described static iron core is relative with described moving iron core, and is fixed in the sidewall of automatic change-over (90);
Coil (20) is surrounded on described moving iron core and described static iron core.
8, automatic change-over according to claim 7 is characterized in that described outer locking device comprises:
Connecting rod (27);
Elastic component (28,29), described elastic component are sleeved in the connecting rod (27); With
Axle (26,30), elastic component is stated in described axle clamp residence, and described axle (26) is fixed in the either side of the small of the back hole of connecting rod 25, and described axle (30) is contained in the clamping plate (31) of described automatic change-over base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03270316 CN2687820Y (en) | 2003-09-24 | 2003-09-24 | Automatic commutation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03270316 CN2687820Y (en) | 2003-09-24 | 2003-09-24 | Automatic commutation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2687820Y true CN2687820Y (en) | 2005-03-23 |
Family
ID=34661194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03270316 Expired - Lifetime CN2687820Y (en) | 2003-09-24 | 2003-09-24 | Automatic commutation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2687820Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699596B (en) * | 2009-11-04 | 2012-10-03 | 江苏大全凯帆电器股份有限公司 | Dual-power switch |
| CN107968004A (en) * | 2017-12-23 | 2018-04-27 | 无锡凯绎科技有限公司 | Workalike interlock |
-
2003
- 2003-09-24 CN CN 03270316 patent/CN2687820Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699596B (en) * | 2009-11-04 | 2012-10-03 | 江苏大全凯帆电器股份有限公司 | Dual-power switch |
| CN107968004A (en) * | 2017-12-23 | 2018-04-27 | 无锡凯绎科技有限公司 | Workalike interlock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DELIXI GROUP Free format text: FORMER OWNER: DELIXI ELECTRICAL APPLIANCE CO. LTD., ZHEJIANG Effective date: 20111219 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111219 Address after: Yueqing City, Zhejiang province Liushi town 325604 Delixi Electric high-tech eco industrial park Patentee after: Delixi Electric Co., Ltd. Address before: Yueqing City, Zhejiang province 325604 Delixi Liushi Industrial Park Patentee before: Delixi Electrical Appliance Co., Ltd., Zhejiang |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130924 Granted publication date: 20050323 |
|
| DD01 | Delivery of document by public notice |
Addressee: Zheng Dan Document name: Notification of Expiration of Patent Right Duration |